Merge branch 'dygraph' into bm_dyg

configs/rec/ch_ppocr_v2.1/rec_chinese_lite_train_distillation_v2.1.yml

+Global:
+  debug: false
+  use_gpu: true
+  epoch_num: 800
+  log_smooth_window: 20
+  print_batch_step: 10
+  save_model_dir: ./output/rec_chinese_lite_distillation_v2.1
+  save_epoch_step: 3
+  eval_batch_step: [0, 2000]
+  cal_metric_during_train: true
+  pretrained_model:
+  checkpoints:
+  save_inference_dir:
+  use_visualdl: false
+  infer_img: doc/imgs_words/ch/word_1.jpg
+  character_dict_path: ppocr/utils/ppocr_keys_v1.txt
+  character_type: ch
+  max_text_length: 25
+  infer_mode: false
+  use_space_char: false
+  distributed: true
+  save_res_path: ./output/rec/predicts_chinese_lite_distillation_v2.1.txt
+
+
+Optimizer:
+  name: Adam
+  beta1: 0.9
+  beta2: 0.999
+  lr:
+    name: Cosine
+    learning_rate: 0.0005
+    warmup_epoch: 5
+  regularizer:
+    name: L2
+    factor: 1.0e-05
+Architecture:
+  name: DistillationModel
+  algorithm: Distillation
+  Models:
+    Student:
+      pretrained:
+      freeze_params: false
+      return_all_feats: true
+      model_type: rec
+      algorithm: CRNN
+      Transform:
+      Backbone:
+        name: MobileNetV3
+        scale: 0.5
+        model_name: small
+        small_stride: [1, 2, 2, 2]
+      Neck:
+        name: SequenceEncoder
+        encoder_type: rnn
+        hidden_size: 64
+      Head:
+        name: CTCHead
+        mid_channels: 96
+        fc_decay: 0.00001
+    Teacher:
+      pretrained:
+      freeze_params: false
+      return_all_feats: true
+      model_type: rec
+      algorithm: CRNN
+      Transform:
+      Backbone:
+        name: MobileNetV3
+        scale: 0.5
+        model_name: small
+        small_stride: [1, 2, 2, 2]
+      Neck:
+        name: SequenceEncoder
+        encoder_type: rnn
+        hidden_size: 64
+      Head:
+        name: CTCHead
+        mid_channels: 96
+        fc_decay: 0.00001
+  
+
+Loss:
+  name: CombinedLoss
+  loss_config_list:
+  - DistillationCTCLoss:
+      weight: 1.0
+      model_name_list: ["Student", "Teacher"]
+      key: head_out
+  - DistillationDMLLoss:
+      weight: 1.0
+      act: "softmax"
+      model_name_pairs:
+      - ["Student", "Teacher"]
+      key: head_out
+  - DistillationDistanceLoss:
+      weight: 1.0
+      mode: "l2"
+      model_name_pairs:
+      - ["Student", "Teacher"]
+      key: backbone_out
+
+PostProcess:
+  name: DistillationCTCLabelDecode
+  model_name: ["Student", "Teacher"]
+  key: head_out
+
+Metric:
+  name: DistillationMetric
+  base_metric_name: RecMetric
+  main_indicator: acc
+  key: "Student"
+
+Train:
+  dataset:
+    name: SimpleDataSet
+    data_dir: ./train_data/
+    label_file_list:
+    - ./train_data/train_list.txt
+    transforms:
+    - DecodeImage:
+        img_mode: BGR
+        channel_first: false
+    - RecAug:
+    - CTCLabelEncode:
+    - RecResizeImg:
+        image_shape: [3, 32, 320]
+    - KeepKeys:
+        keep_keys:
+        - image
+        - label
+        - length
+  loader:
+    shuffle: true
+    batch_size_per_card: 128
+    drop_last: true
+    num_sections: 1
+    num_workers: 8
+Eval:
+  dataset:
+    name: SimpleDataSet
+    data_dir: ./train_data
+    label_file_list:
+    - ./train_data/val_list.txt
+    transforms:
+    - DecodeImage:
+        img_mode: BGR
+        channel_first: false
+    - CTCLabelEncode:
+    - RecResizeImg:
+        image_shape: [3, 32, 320]
+    - KeepKeys:
+        keep_keys:
+        - image
+        - label
+        - length
+  loader:
+    shuffle: false
+    drop_last: false
+    batch_size_per_card: 128
+    num_workers: 8

configs/table/table_mv3.yml

+Global:
+  use_gpu: true
+  epoch_num: 50
+  log_smooth_window: 20
+  print_batch_step: 5
+  save_model_dir: ./output/table_mv3/
+  save_epoch_step: 5
+  # evaluation is run every 400 iterations after the 0th iteration
+  eval_batch_step: [0, 400]
+  cal_metric_during_train: True
+  pretrained_model: 
+  checkpoints: 
+  save_inference_dir:
+  use_visualdl: False
+  infer_img: doc/imgs_words/ch/word_1.jpg
+  # for data or label process
+  character_dict_path: ppocr/utils/dict/table_structure_dict.txt
+  character_type: en
+  max_text_length: 100
+  max_elem_length: 500
+  max_cell_num: 500
+  infer_mode: False
+  process_total_num: 0
+  process_cut_num: 0
+
+
+Optimizer:
+  name: Adam
+  beta1: 0.9
+  beta2: 0.999
+  clip_norm: 5.0
+  lr:
+    learning_rate: 0.001
+  regularizer:
+    name: 'L2'
+    factor: 0.00000
+
+Architecture:
+  model_type: table
+  algorithm: TableAttn
+  Backbone:
+    name: MobileNetV3
+    scale: 1.0
+    model_name: small
+    disable_se: True
+  Head:
+    name: TableAttentionHead
+    hidden_size: 256
+    l2_decay: 0.00001
+    loc_type: 2
+
+Loss:
+  name: TableAttentionLoss
+  structure_weight: 100.0
+  loc_weight: 10000.0
+
+PostProcess:
+  name: TableLabelDecode
+
+Metric:
+  name: TableMetric
+  main_indicator: acc
+
+Train:
+  dataset:
+    name: PubTabDataSet
+    data_dir: train_data/table/pubtabnet/train/
+    label_file_path: train_data/table/pubtabnet/PubTabNet_2.0.0_train.jsonl
+    transforms:
+      - DecodeImage: # load image
+          img_mode: BGR
+          channel_first: False
+      - ResizeTableImage:
+          max_len: 488
+      - TableLabelEncode:
+      - NormalizeImage:
+          scale: 1./255.
+          mean: [0.485, 0.456, 0.406]
+          std: [0.229, 0.224, 0.225]
+          order: 'hwc'
+      - PaddingTableImage:
+      - ToCHWImage:
+      - KeepKeys:
+          keep_keys: ['image', 'structure', 'bbox_list', 'sp_tokens', 'bbox_list_mask']
+  loader:
+    shuffle: True
+    batch_size_per_card: 32
+    drop_last: True
+    num_workers: 1
+
+Eval:
+  dataset:
+    name: PubTabDataSet
+    data_dir: train_data/table/pubtabnet/val/
+    label_file_path: train_data/table/pubtabnet/PubTabNet_2.0.0_val.jsonl
+    transforms:
+      - DecodeImage: # load image
+          img_mode: BGR
+          channel_first: False
+      - ResizeTableImage:
+          max_len: 488
+      - TableLabelEncode:
+      - NormalizeImage:
+          scale: 1./255.
+          mean: [0.485, 0.456, 0.406]
+          std: [0.229, 0.224, 0.225]
+          order: 'hwc'
+      - PaddingTableImage:
+      - ToCHWImage:
+      - KeepKeys:
+          keep_keys: ['image', 'structure', 'bbox_list', 'sp_tokens', 'bbox_list_mask']
+  loader:
+    shuffle: False
+    drop_last: False
+    batch_size_per_card: 16
+    num_workers: 1

deploy/cpp_infer/src/preprocess_op.cpp

@@ -47,16 +47,13 @@ void Normalize::Run(cv::Mat *im, const std::vector<float> &mean,
     e /= 255.0;
   }
   (*im).convertTo(*im, CV_32FC3, e);
-  for (int h = 0; h < im->rows; h++) {
-    for (int w = 0; w < im->cols; w++) {
-      im->at<cv::Vec3f>(h, w)[0] =
-          (im->at<cv::Vec3f>(h, w)[0] - mean[0]) * scale[0];
-      im->at<cv::Vec3f>(h, w)[1] =
-          (im->at<cv::Vec3f>(h, w)[1] - mean[1]) * scale[1];
-      im->at<cv::Vec3f>(h, w)[2] =
-          (im->at<cv::Vec3f>(h, w)[2] - mean[2]) * scale[2];
-    }
+  std::vector<cv::Mat> bgr_channels(3);
+  cv::split(*im, bgr_channels);
+  for (auto i = 0; i < bgr_channels.size(); i++) {
+    bgr_channels[i].convertTo(bgr_channels[i], CV_32FC1, 1.0 * scale[i],
+                              (0.0 - mean[i]) * scale[i]);
   }
+  cv::merge(bgr_channels, *im);
 }
 
 void ResizeImgType0::Run(const cv::Mat &img, cv::Mat &resize_img,

deploy/hubserving/readme.md

@@ -29,7 +29,7 @@ deploy/hubserving/ocr_system/
 ### 1. 准备环境
 ```shell
 # 安装paddlehub  
-pip3 install paddlehub --upgrade -i https://pypi.tuna.tsinghua.edu.cn/simple
+pip3 install paddlehub==1.8.3 --upgrade -i https://pypi.tuna.tsinghua.edu.cn/simple
 ```
 
 ### 2. 下载推理模型

deploy/hubserving/readme_en.md

@@ -30,7 +30,7 @@ The following steps take the 2-stage series service as an example. If only the d
 ### 1. Prepare the environment
 ```shell
 # Install paddlehub  
-pip3 install paddlehub --upgrade -i https://pypi.tuna.tsinghua.edu.cn/simple
+pip3 install paddlehub==1.8.3 --upgrade -i https://pypi.tuna.tsinghua.edu.cn/simple
 ```
 
 ### 2. Download inference model

doc/doc_ch/whl.md

@@ -355,3 +355,4 @@ im_show.save('result.jpg')
 | det                     | 前向时使用启动检测                                                                                                                                                                                                   | TRUE                    |
 | rec                     | 前向时是否启动识别                                                                                                                                                                                                   | TRUE                    |
 | cls                     | 前向时是否启动分类 (命令行模式下使用use_angle_cls控制前向是否启动分类)                                                                                                                                                                                                | FALSE                    |
+| show_log                     | 是否打印det和rec等信息                                                                                                                                                                                                | FALSE                    |

doc/doc_en/whl_en.md

@@ -362,3 +362,5 @@ im_show.save('result.jpg')
 | det                     | Enable detction when `ppocr.ocr` func exec                                                                                                                                                                                                   | TRUE                    |
 | rec                     | Enable recognition when `ppocr.ocr` func exec                                                                                                                                                                                                   | TRUE                    |
 | cls                     | Enable classification when `ppocr.ocr` func exec((Use use_angle_cls in command line mode to control whether to start classification in the forward direction)                                                                                                                                                                                                   | FALSE                    |
+| show_log                     | Whether to print log in det and rec 
+                                                                                                                                                                                               | FALSE                    |
\ No newline at end of file

paddleocr.py

@@ -28,7 +28,7 @@ from ppocr.utils.logging import get_logger
 
 logger = get_logger()
 from ppocr.utils.utility import check_and_read_gif, get_image_file_list
-from ppocr.utils.network import maybe_download, download_with_progressbar
+from ppocr.utils.network import maybe_download, download_with_progressbar, is_link, confirm_model_dir_url
 from tools.infer.utility import draw_ocr, init_args, str2bool
 
 __all__ = ['PaddleOCR']
@@ -151,8 +151,8 @@ class PaddleOCR(predict_system.TextSystem):
         """
         params = parse_args(mMain=False)
         params.__dict__.update(**kwargs)
-        if params.show_log:
-            logger.setLevel(logging.DEBUG)
+        if not params.show_log:
+            logger.setLevel(logging.INFO)
         self.use_angle_cls = params.use_angle_cls
         lang = params.lang
         latin_lang = [
@@ -192,20 +192,19 @@ class PaddleOCR(predict_system.TextSystem):
                 'dict_path']
 
         # init model dir
-        if params.det_model_dir is None:
-            params.det_model_dir = os.path.join(BASE_DIR, VERSION,
-                                                            'det', det_lang)
-        if params.rec_model_dir is None:
-            params.rec_model_dir = os.path.join(BASE_DIR, VERSION,
-                                                            'rec', lang)
-        if params.cls_model_dir is None:
-            params.cls_model_dir = os.path.join(BASE_DIR, 'cls')
+        params.det_model_dir, det_url = confirm_model_dir_url(params.det_model_dir,
+                                                              os.path.join(BASE_DIR, VERSION, 'det', det_lang),
+                                                              model_urls['det'][det_lang])
+        params.rec_model_dir, rec_url = confirm_model_dir_url(params.rec_model_dir,
+                                                              os.path.join(BASE_DIR, VERSION, 'rec', lang),
+                                                              model_urls['rec'][lang]['url'])
+        params.cls_model_dir, cls_url = confirm_model_dir_url(params.cls_model_dir,
+                                                              os.path.join(BASE_DIR, VERSION, 'cls'),
+                                                              model_urls['cls'])
         # download model
-        maybe_download(params.det_model_dir,
-                       model_urls['det'][det_lang])
-        maybe_download(params.rec_model_dir,
-                       model_urls['rec'][lang]['url'])
-        maybe_download(params.cls_model_dir, model_urls['cls'])
+        maybe_download(params.det_model_dir, det_url)
+        maybe_download(params.rec_model_dir, rec_url)
+        maybe_download(params.cls_model_dir, cls_url)
 
         if params.det_algorithm not in SUPPORT_DET_MODEL:
             logger.error('det_algorithm must in {}'.format(SUPPORT_DET_MODEL))
@@ -277,7 +276,7 @@ def main():
     # for cmd
     args = parse_args(mMain=True)
     image_dir = args.image_dir
-    if image_dir.startswith('http'):
+    if is_link(image_dir):
         download_with_progressbar(image_dir, 'tmp.jpg')
         image_file_list = ['tmp.jpg']
     else:

ppocr/data/__init__.py

@@ -35,6 +35,7 @@ from ppocr.data.imaug import transform, create_operators
 from ppocr.data.simple_dataset import SimpleDataSet
 from ppocr.data.lmdb_dataset import LMDBDataSet
 from ppocr.data.pgnet_dataset import PGDataSet
+from ppocr.data.pubtab_dataset import PubTabDataSet
 
 __all__ = ['build_dataloader', 'transform', 'create_operators']
 
@@ -55,7 +56,7 @@ signal.signal(signal.SIGTERM, term_mp)
 def build_dataloader(config, mode, device, logger, seed=None):
     config = copy.deepcopy(config)
 
-    support_dict = ['SimpleDataSet', 'LMDBDataSet', 'PGDataSet']
+    support_dict = ['SimpleDataSet', 'LMDBDataSet', 'PGDataSet', 'PubTabDataSet']
     module_name = config[mode]['dataset']['name']
     assert module_name in support_dict, Exception(
         'DataSet only support {}'.format(support_dict))

ppocr/data/imaug/__init__.py

@@ -29,6 +29,7 @@ from .label_ops import *
 from .east_process import *
 from .sast_process import *
 from .pg_process import *
+from .gen_table_mask import *
 
 
 def transform(data, ops=None):

ppocr/data/imaug/gen_table_mask.py

+"""
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
+
+import sys
+import six
+import cv2
+import numpy as np
+
+
+class GenTableMask(object):
+    """ gen table mask """
+
+    def __init__(self, shrink_h_max, shrink_w_max, mask_type=0, **kwargs):
+        self.shrink_h_max = 5
+        self.shrink_w_max = 5
+        self.mask_type = mask_type
+        
+    def projection(self, erosion, h, w, spilt_threshold=0):
+        # 水平投影
+        projection_map = np.ones_like(erosion)
+        project_val_array = [0 for _ in range(0, h)]
+
+        for j in range(0, h):
+            for i in range(0, w):
+                if erosion[j, i] == 255:
+                    project_val_array[j] += 1
+        # 根据数组，获取切割点
+        start_idx = 0  # 记录进入字符区的索引
+        end_idx = 0  # 记录进入空白区域的索引
+        in_text = False  # 是否遍历到了字符区内
+        box_list = []
+        for i in range(len(project_val_array)):
+            if in_text == False and project_val_array[i] > spilt_threshold:  # 进入字符区了
+                in_text = True
+                start_idx = i
+            elif project_val_array[i] <= spilt_threshold and in_text == True:  # 进入空白区了
+                end_idx = i
+                in_text = False
+                if end_idx - start_idx <= 2:
+                    continue
+                box_list.append((start_idx, end_idx + 1))
+
+        if in_text:
+            box_list.append((start_idx, h - 1))
+        # 绘制投影直方图
+        for j in range(0, h):
+            for i in range(0, project_val_array[j]):
+                projection_map[j, i] = 0
+        return box_list, projection_map
+
+    def projection_cx(self, box_img):
+        box_gray_img = cv2.cvtColor(box_img, cv2.COLOR_BGR2GRAY)
+        h, w = box_gray_img.shape
+        # 灰度图片进行二值化处理
+        ret, thresh1 = cv2.threshold(box_gray_img, 200, 255, cv2.THRESH_BINARY_INV)
+        # 纵向腐蚀
+        if h < w:
+            kernel = np.ones((2, 1), np.uint8)
+            erode = cv2.erode(thresh1, kernel, iterations=1)
+        else:
+            erode = thresh1
+        # 水平膨胀
+        kernel = np.ones((1, 5), np.uint8)
+        erosion = cv2.dilate(erode, kernel, iterations=1)
+        # 水平投影
+        projection_map = np.ones_like(erosion)
+        project_val_array = [0 for _ in range(0, h)]
+
+        for j in range(0, h):
+            for i in range(0, w):
+                if erosion[j, i] == 255:
+                    project_val_array[j] += 1
+        # 根据数组，获取切割点
+        start_idx = 0  # 记录进入字符区的索引
+        end_idx = 0  # 记录进入空白区域的索引
+        in_text = False  # 是否遍历到了字符区内
+        box_list = []
+        spilt_threshold = 0
+        for i in range(len(project_val_array)):
+            if in_text == False and project_val_array[i] > spilt_threshold:  # 进入字符区了
+                in_text = True
+                start_idx = i
+            elif project_val_array[i] <= spilt_threshold and in_text == True:  # 进入空白区了
+                end_idx = i
+                in_text = False
+                if end_idx - start_idx <= 2:
+                    continue
+                box_list.append((start_idx, end_idx + 1))
+
+        if in_text:
+            box_list.append((start_idx, h - 1))
+        # 绘制投影直方图
+        for j in range(0, h):
+            for i in range(0, project_val_array[j]):
+                projection_map[j, i] = 0
+        split_bbox_list = []
+        if len(box_list) > 1:
+            for i, (h_start, h_end) in enumerate(box_list):
+                if i == 0:
+                    h_start = 0
+                if i == len(box_list):
+                    h_end = h
+                word_img = erosion[h_start:h_end + 1, :]
+                word_h, word_w = word_img.shape
+                w_split_list, w_projection_map = self.projection(word_img.T, word_w, word_h)
+                w_start, w_end = w_split_list[0][0], w_split_list[-1][1]
+                if h_start > 0:
+                    h_start -= 1
+                h_end += 1
+                word_img = box_img[h_start:h_end + 1:, w_start:w_end + 1, :]
+                split_bbox_list.append([w_start, h_start, w_end, h_end])
+        else:
+            split_bbox_list.append([0, 0, w, h])
+        return split_bbox_list
+
+    def shrink_bbox(self, bbox):
+        left, top, right, bottom = bbox
+        sh_h = min(max(int((bottom - top) * 0.1), 1), self.shrink_h_max)
+        sh_w = min(max(int((right - left) * 0.1), 1), self.shrink_w_max)
+        left_new = left + sh_w
+        right_new = right - sh_w
+        top_new = top + sh_h
+        bottom_new = bottom - sh_h
+        if left_new >= right_new:
+            left_new = left
+            right_new = right
+        if top_new >= bottom_new:
+            top_new = top
+            bottom_new = bottom
+        return [left_new, top_new, right_new, bottom_new]
+
+    def __call__(self, data):
+        img = data['image']
+        cells = data['cells']
+        height, width = img.shape[0:2]
+        if self.mask_type == 1:
+            mask_img = np.zeros((height, width), dtype=np.float32)
+        else:
+            mask_img = np.zeros((height, width, 3), dtype=np.float32)
+        cell_num = len(cells)
+        for cno in range(cell_num):
+            if "bbox" in cells[cno]:
+                bbox = cells[cno]['bbox']
+                left, top, right, bottom = bbox
+                box_img = img[top:bottom, left:right, :].copy()
+                split_bbox_list = self.projection_cx(box_img)
+                for sno in range(len(split_bbox_list)):
+                    split_bbox_list[sno][0] += left
+                    split_bbox_list[sno][1] += top
+                    split_bbox_list[sno][2] += left
+                    split_bbox_list[sno][3] += top
+
+                for sno in range(len(split_bbox_list)):
+                    left, top, right, bottom = split_bbox_list[sno]
+                    left, top, right, bottom = self.shrink_bbox([left, top, right, bottom])
+                    if self.mask_type == 1:
+                        mask_img[top:bottom, left:right] = 1.0
+                        data['mask_img'] = mask_img
+                    else:
+                        mask_img[top:bottom, left:right, :] = (255, 255, 255)        
+                        data['image'] = mask_img
+        return data
+
+class ResizeTableImage(object):
+    def __init__(self, max_len, **kwargs):
+        super(ResizeTableImage, self).__init__()
+        self.max_len = max_len
+
+    def get_img_bbox(self, cells):
+        bbox_list = []
+        if len(cells) == 0:
+            return bbox_list
+        cell_num = len(cells)
+        for cno in range(cell_num):
+            if "bbox" in cells[cno]:
+                bbox = cells[cno]['bbox']
+                bbox_list.append(bbox)
+        return bbox_list
+
+    def resize_img_table(self, img, bbox_list, max_len):
+        height, width = img.shape[0:2]
+        ratio = max_len / (max(height, width) * 1.0)
+        resize_h = int(height * ratio)
+        resize_w = int(width * ratio)
+        img_new = cv2.resize(img, (resize_w, resize_h))
+        bbox_list_new = []
+        for bno in range(len(bbox_list)):
+            left, top, right, bottom = bbox_list[bno].copy()
+            left = int(left * ratio)
+            top = int(top * ratio)
+            right = int(right * ratio)
+            bottom = int(bottom * ratio)
+            bbox_list_new.append([left, top, right, bottom])
+        return img_new, bbox_list_new
+    
+    def __call__(self, data):
+        img = data['image']
+        if 'cells' not in data:
+            cells = []
+        else:
+            cells = data['cells']
+        bbox_list = self.get_img_bbox(cells)
+        img_new, bbox_list_new = self.resize_img_table(img, bbox_list, self.max_len)
+        data['image'] = img_new
+        cell_num = len(cells)
+        bno = 0
+        for cno in range(cell_num):
+            if "bbox" in data['cells'][cno]:
+                data['cells'][cno]['bbox'] = bbox_list_new[bno]
+                bno += 1
+        data['max_len'] = self.max_len
+        return data
+
+class PaddingTableImage(object):
+    def __init__(self, **kwargs):
+        super(PaddingTableImage, self).__init__()
+    
+    def __call__(self, data):
+        img = data['image']
+        max_len = data['max_len']
+        padding_img = np.zeros((max_len, max_len, 3), dtype=np.float32)
+        height, width = img.shape[0:2]
+        padding_img[0:height, 0:width, :] = img.copy()
+        data['image'] = padding_img
+        return data
+            
\ No newline at end of file

ppocr/data/imaug/label_ops.py

@@ -351,3 +351,162 @@ class SRNLabelEncode(BaseRecLabelEncode):
             assert False, "Unsupport type %s in get_beg_end_flag_idx" \
                           % beg_or_end
         return idx
+
+class TableLabelEncode(object):
+    """ Convert between text-label and text-index """
+    def __init__(self, 
+        max_text_length,
+        max_elem_length,
+        max_cell_num,
+        character_dict_path,
+        span_weight = 1.0, 
+        **kwargs):
+        self.max_text_length = max_text_length
+        self.max_elem_length = max_elem_length
+        self.max_cell_num = max_cell_num
+        list_character, list_elem = self.load_char_elem_dict(character_dict_path)
+        list_character = self.add_special_char(list_character)
+        list_elem = self.add_special_char(list_elem)
+        self.dict_character = {}
+        for i, char in enumerate(list_character):
+            self.dict_character[char] = i
+        self.dict_elem = {}
+        for i, elem in enumerate(list_elem):
+            self.dict_elem[elem] = i
+        self.span_weight = span_weight
+    
+    def load_char_elem_dict(self, character_dict_path):
+        list_character = []
+        list_elem = []
+        with open(character_dict_path, "rb") as fin:
+            lines = fin.readlines()
+            substr = lines[0].decode('utf-8').strip("\n").split("\t")
+            character_num = int(substr[0])
+            elem_num = int(substr[1])
+            for cno in range(1, 1+character_num):
+                character = lines[cno].decode('utf-8').strip("\n")
+                list_character.append(character)
+            for eno in range(1+character_num, 1+character_num+elem_num):
+                elem = lines[eno].decode('utf-8').strip("\n")
+                list_elem.append(elem)
+        return list_character, list_elem
+        
+    def add_special_char(self, list_character):
+        self.beg_str = "sos"
+        self.end_str = "eos"
+        list_character = [self.beg_str] + list_character + [self.end_str]
+        return list_character
+    
+    def get_span_idx_list(self):
+        span_idx_list = []
+        for elem in self.dict_elem:
+            if 'span' in elem:
+                span_idx_list.append(self.dict_elem[elem])
+        return span_idx_list
+        
+    def __call__(self, data):
+        cells = data['cells']
+        structure = data['structure']['tokens']
+        structure = self.encode(structure, 'elem')
+        if structure is None:
+            return None
+        elem_num = len(structure)
+        structure = [0] + structure + [len(self.dict_elem) - 1]
+        structure = structure + [0] * (self.max_elem_length + 2 - len(structure))
+        structure = np.array(structure)
+        data['structure'] = structure
+        elem_char_idx1 = self.dict_elem['<td>']
+        elem_char_idx2 = self.dict_elem['<td']
+        span_idx_list = self.get_span_idx_list()
+        td_idx_list = np.logical_or(structure == elem_char_idx1, structure == elem_char_idx2)
+        td_idx_list = np.where(td_idx_list)[0]
+        
+        structure_mask = np.ones((self.max_elem_length + 2, 1), dtype=np.float32)
+        bbox_list = np.zeros((self.max_elem_length + 2, 4), dtype=np.float32)
+        bbox_list_mask = np.zeros((self.max_elem_length + 2, 1), dtype=np.float32)
+        img_height, img_width, img_ch = data['image'].shape
+        if len(span_idx_list) > 0:
+            span_weight = len(td_idx_list) * 1.0 / len(span_idx_list)
+            span_weight = min(max(span_weight, 1.0), self.span_weight)
+        for cno in range(len(cells)):
+            if 'bbox' in cells[cno]:
+                bbox = cells[cno]['bbox'].copy()
+                bbox[0] = bbox[0] * 1.0 / img_width
+                bbox[1] = bbox[1] * 1.0 / img_height
+                bbox[2] = bbox[2] * 1.0 / img_width
+                bbox[3] = bbox[3] * 1.0 / img_height
+                td_idx = td_idx_list[cno]
+                bbox_list[td_idx] = bbox
+                bbox_list_mask[td_idx] = 1.0
+                cand_span_idx = td_idx + 1
+                if cand_span_idx < (self.max_elem_length + 2):
+                    if structure[cand_span_idx] in span_idx_list:
+                        structure_mask[cand_span_idx] = span_weight
+
+        data['bbox_list'] = bbox_list
+        data['bbox_list_mask'] = bbox_list_mask
+        data['structure_mask'] = structure_mask
+        char_beg_idx = self.get_beg_end_flag_idx('beg', 'char')
+        char_end_idx = self.get_beg_end_flag_idx('end', 'char')
+        elem_beg_idx = self.get_beg_end_flag_idx('beg', 'elem')
+        elem_end_idx = self.get_beg_end_flag_idx('end', 'elem')
+        data['sp_tokens'] = np.array([char_beg_idx, char_end_idx, elem_beg_idx, 
+            elem_end_idx, elem_char_idx1, elem_char_idx2, self.max_text_length, 
+            self.max_elem_length, self.max_cell_num, elem_num])
+        return data
+
+    def encode(self, text, char_or_elem):
+        """convert text-label into text-index.
+        """
+        if char_or_elem == "char":
+            max_len = self.max_text_length
+            current_dict = self.dict_character
+        else:
+            max_len = self.max_elem_length
+            current_dict = self.dict_elem
+        if len(text) > max_len:
+            return None
+        if len(text) == 0:
+            if char_or_elem == "char":
+                return [self.dict_character['space']]
+            else:
+                return None
+        text_list = []
+        for char in text:
+            if char not in current_dict:
+                return None
+            text_list.append(current_dict[char])
+        if len(text_list) == 0:
+            if char_or_elem == "char":
+                return [self.dict_character['space']]
+            else:
+                return None
+        return text_list
+
+    def get_ignored_tokens(self, char_or_elem):
+        beg_idx = self.get_beg_end_flag_idx("beg", char_or_elem)
+        end_idx = self.get_beg_end_flag_idx("end", char_or_elem)
+        return [beg_idx, end_idx]
+
+    def get_beg_end_flag_idx(self, beg_or_end, char_or_elem):
+        if char_or_elem == "char":
+            if beg_or_end == "beg":
+                idx = np.array(self.dict_character[self.beg_str])
+            elif beg_or_end == "end":
+                idx = np.array(self.dict_character[self.end_str])
+            else:
+                assert False, "Unsupport type %s in get_beg_end_flag_idx of char" \
+                              % beg_or_end
+        elif char_or_elem == "elem":
+            if beg_or_end == "beg":
+                idx = np.array(self.dict_elem[self.beg_str])
+            elif beg_or_end == "end":
+                idx = np.array(self.dict_elem[self.end_str])
+            else:
+                assert False, "Unsupport type %s in get_beg_end_flag_idx of elem" \
+                              % beg_or_end  
+        else:
+            assert False, "Unsupport type %s in char_or_elem" \
+                              % char_or_elem 
+        return idx
+    
\ No newline at end of file

ppocr/data/pubtab_dataset.py

+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import numpy as np
+import os
+import random
+from paddle.io import Dataset
+import json
+
+from .imaug import transform, create_operators
+
+
+class PubTabDataSet(Dataset):
+    def __init__(self, config, mode, logger, seed=None):
+        super(PubTabDataSet, self).__init__()
+        self.logger = logger
+
+        global_config = config['Global']
+        dataset_config = config[mode]['dataset']
+        loader_config = config[mode]['loader']
+
+        label_file_path = dataset_config.pop('label_file_path')
+
+        self.data_dir = dataset_config['data_dir']
+        self.do_shuffle = loader_config['shuffle']
+        self.do_hard_select = False
+        if 'hard_select' in loader_config:
+            self.do_hard_select = loader_config['hard_select']
+            self.hard_prob = loader_config['hard_prob']
+        if self.do_hard_select:
+            self.img_select_prob = self.load_hard_select_prob()
+        self.table_select_type = None
+        if 'table_select_type' in loader_config:
+            self.table_select_type = loader_config['table_select_type']
+            self.table_select_prob = loader_config['table_select_prob']
+
+        self.seed = seed
+        logger.info("Initialize indexs of datasets:%s" % label_file_path)
+        with open(label_file_path, "rb") as f:
+            self.data_lines = f.readlines()
+        self.data_idx_order_list = list(range(len(self.data_lines)))
+        if mode.lower() == "train":
+            self.shuffle_data_random()
+        self.ops = create_operators(dataset_config['transforms'], global_config)
+
+    def shuffle_data_random(self):
+        if self.do_shuffle:
+            random.seed(self.seed)
+            random.shuffle(self.data_lines)
+        return
+
+    def __getitem__(self, idx):
+        try:
+            data_line = self.data_lines[idx]
+            data_line = data_line.decode('utf-8').strip("\n")
+            info = json.loads(data_line)
+            file_name = info['filename']
+            select_flag = True
+            if self.do_hard_select:
+                prob = self.img_select_prob[file_name]
+                if prob < random.uniform(0, 1):
+                    select_flag = False
+            
+            if self.table_select_type:
+                structure = info['html']['structure']['tokens'].copy()
+                structure_str = ''.join(structure)
+                table_type = "simple"
+                if 'colspan' in structure_str or 'rowspan' in structure_str:
+                    table_type = "complex"
+                if table_type == "complex":
+                    if self.table_select_prob < random.uniform(0, 1):
+                        select_flag = False                    
+            
+            if select_flag:
+                cells = info['html']['cells'].copy()
+                structure = info['html']['structure'].copy()
+                img_path = os.path.join(self.data_dir, file_name)
+                data = {'img_path': img_path, 'cells': cells, 'structure':structure}
+                if not os.path.exists(img_path):
+                    raise Exception("{} does not exist!".format(img_path))
+                with open(data['img_path'], 'rb') as f:
+                    img = f.read()
+                    data['image'] = img
+                outs = transform(data, self.ops)
+            else:
+                outs = None
+        except Exception as e:
+            self.logger.error(
+                "When parsing line {}, error happened with msg: {}".format(
+                    data_line, e))
+            outs = None
+        if outs is None:
+            return self.__getitem__(np.random.randint(self.__len__()))
+        return outs
+
+    def __len__(self):
+        return len(self.data_idx_order_list)

ppocr/losses/__init__.py

@@ -13,28 +13,39 @@
 # limitations under the License.
 
 import copy
+import paddle
+import paddle.nn as nn
 
+# det loss
+from .det_db_loss import DBLoss
+from .det_east_loss import EASTLoss
+from .det_sast_loss import SASTLoss
 
-def build_loss(config):
-    # det loss
-    from .det_db_loss import DBLoss
-    from .det_east_loss import EASTLoss
-    from .det_sast_loss import SASTLoss
+# rec loss
+from .rec_ctc_loss import CTCLoss
+from .rec_att_loss import AttentionLoss
+from .rec_srn_loss import SRNLoss
+
+# cls loss
+from .cls_loss import ClsLoss
+
+# e2e loss
+from .e2e_pg_loss import PGLoss
 
-    # rec loss
-    from .rec_ctc_loss import CTCLoss
-    from .rec_att_loss import AttentionLoss
-    from .rec_srn_loss import SRNLoss
+# basic loss function
+from .basic_loss import DistanceLoss
 
-    # cls loss
-    from .cls_loss import ClsLoss
+# combined loss function
+from .combined_loss import CombinedLoss
 
-    # e2e loss
-    from .e2e_pg_loss import PGLoss
+# table loss
+from .table_att_loss import TableAttentionLoss
+
+def build_loss(config):
     support_dict = [
         'DBLoss', 'EASTLoss', 'SASTLoss', 'CTCLoss', 'ClsLoss', 'AttentionLoss',
-        'SRNLoss', 'PGLoss']
-
+        'SRNLoss', 'PGLoss', 'CombinedLoss', 'TableAttentionLoss'
+    ]
     config = copy.deepcopy(config)
     module_name = config.pop('name')
     assert module_name in support_dict, Exception('loss only support {}'.format(

ppocr/losses/basic_loss.py

+#copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+#Licensed under the Apache License, Version 2.0 (the "License");
+#you may not use this file except in compliance with the License.
+#You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#Unless required by applicable law or agreed to in writing, software
+#distributed under the License is distributed on an "AS IS" BASIS,
+#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#See the License for the specific language governing permissions and
+#limitations under the License.
+
+import paddle
+import paddle.nn as nn
+import paddle.nn.functional as F
+
+from paddle.nn import L1Loss
+from paddle.nn import MSELoss as L2Loss
+from paddle.nn import SmoothL1Loss
+
+
+class CELoss(nn.Layer):
+    def __init__(self, epsilon=None):
+        super().__init__()
+        if epsilon is not None and (epsilon <= 0 or epsilon >= 1):
+            epsilon = None
+        self.epsilon = epsilon
+
+    def _labelsmoothing(self, target, class_num):
+        if target.shape[-1] != class_num:
+            one_hot_target = F.one_hot(target, class_num)
+        else:
+            one_hot_target = target
+        soft_target = F.label_smooth(one_hot_target, epsilon=self.epsilon)
+        soft_target = paddle.reshape(soft_target, shape=[-1, class_num])
+        return soft_target
+
+    def forward(self, x, label):
+        loss_dict = {}
+        if self.epsilon is not None:
+            class_num = x.shape[-1]
+            label = self._labelsmoothing(label, class_num)
+            x = -F.log_softmax(x, axis=-1)
+            loss = paddle.sum(x * label, axis=-1)
+        else:
+            if label.shape[-1] == x.shape[-1]:
+                label = F.softmax(label, axis=-1)
+                soft_label = True
+            else:
+                soft_label = False
+            loss = F.cross_entropy(x, label=label, soft_label=soft_label)
+        return loss
+
+
+class DMLLoss(nn.Layer):
+    """
+    DMLLoss
+    """
+
+    def __init__(self, act=None):
+        super().__init__()
+        if act is not None:
+            assert act in ["softmax", "sigmoid"]
+        if act == "softmax":
+            self.act = nn.Softmax(axis=-1)
+        elif act == "sigmoid":
+            self.act = nn.Sigmoid()
+        else:
+            self.act = None
+
+    def forward(self, out1, out2):
+        if self.act is not None:
+            out1 = self.act(out1)
+            out2 = self.act(out2)
+
+        log_out1 = paddle.log(out1)
+        log_out2 = paddle.log(out2)
+        loss = (F.kl_div(
+            log_out1, out2, reduction='batchmean') + F.kl_div(
+                log_out2, out1, reduction='batchmean')) / 2.0
+        return loss
+
+
+class DistanceLoss(nn.Layer):
+    """
+    DistanceLoss:
+        mode: loss mode
+    """
+
+    def __init__(self, mode="l2", **kargs):
+        super().__init__()
+        assert mode in ["l1", "l2", "smooth_l1"]
+        if mode == "l1":
+            self.loss_func = nn.L1Loss(**kargs)
+        elif mode == "l2":
+            self.loss_func = nn.MSELoss(**kargs)
+        elif mode == "smooth_l1":
+            self.loss_func = nn.SmoothL1Loss(**kargs)
+
+    def forward(self, x, y):
+        return self.loss_func(x, y)

ppocr/losses/cls_loss.py

@@ -24,7 +24,7 @@ class ClsLoss(nn.Layer):
         super(ClsLoss, self).__init__()
         self.loss_func = nn.CrossEntropyLoss(reduction='mean')
 
-    def __call__(self, predicts, batch):
+    def forward(self, predicts, batch):
         label = batch[1]
         loss = self.loss_func(input=predicts, label=label)
         return {'loss': loss}

ppocr/losses/combined_loss.py

+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import paddle
+import paddle.nn as nn
+
+from .distillation_loss import DistillationCTCLoss
+from .distillation_loss import DistillationDMLLoss
+from .distillation_loss import DistillationDistanceLoss
+
+
+class CombinedLoss(nn.Layer):
+    """
+    CombinedLoss:
+        a combionation of loss function
+    """
+
+    def __init__(self, loss_config_list=None):
+        super().__init__()
+        self.loss_func = []
+        self.loss_weight = []
+        assert isinstance(loss_config_list, list), (
+            'operator config should be a list')
+        for config in loss_config_list:
+            assert isinstance(config,
+                              dict) and len(config) == 1, "yaml format error"
+            name = list(config)[0]
+            param = config[name]
+            assert "weight" in param, "weight must be in param, but param just contains {}".format(
+                param.keys())
+            self.loss_weight.append(param.pop("weight"))
+            self.loss_func.append(eval(name)(**param))
+
+    def forward(self, input, batch, **kargs):
+        loss_dict = {}
+        for idx, loss_func in enumerate(self.loss_func):
+            loss = loss_func(input, batch, **kargs)
+            if isinstance(loss, paddle.Tensor):
+                loss = {"loss_{}_{}".format(str(loss), idx): loss}
+            weight = self.loss_weight[idx]
+            loss = {
+                "{}_{}".format(key, idx): loss[key] * weight
+                for key in loss
+            }
+            loss_dict.update(loss)
+        loss_dict["loss"] = paddle.add_n(list(loss_dict.values()))
+        return loss_dict

ppocr/losses/distillation_loss.py

+#copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+#Licensed under the Apache License, Version 2.0 (the "License");
+#you may not use this file except in compliance with the License.
+#You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#Unless required by applicable law or agreed to in writing, software
+#distributed under the License is distributed on an "AS IS" BASIS,
+#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#See the License for the specific language governing permissions and
+#limitations under the License.
+
+import paddle
+import paddle.nn as nn
+
+from .rec_ctc_loss import CTCLoss
+from .basic_loss import DMLLoss
+from .basic_loss import DistanceLoss
+
+
+class DistillationDMLLoss(DMLLoss):
+    """
+    """
+
+    def __init__(self, model_name_pairs=[], act=None, key=None,
+                 name="loss_dml"):
+        super().__init__(act=act)
+        assert isinstance(model_name_pairs, list)
+        self.key = key
+        self.model_name_pairs = model_name_pairs
+        self.name = name
+
+    def forward(self, predicts, batch):
+        loss_dict = dict()
+        for idx, pair in enumerate(self.model_name_pairs):
+            out1 = predicts[pair[0]]
+            out2 = predicts[pair[1]]
+            if self.key is not None:
+                out1 = out1[self.key]
+                out2 = out2[self.key]
+            loss = super().forward(out1, out2)
+            if isinstance(loss, dict):
+                for key in loss:
+                    loss_dict["{}_{}_{}_{}".format(key, pair[0], pair[1],
+                                                   idx)] = loss[key]
+            else:
+                loss_dict["{}_{}".format(self.name, idx)] = loss
+        return loss_dict
+
+
+class DistillationCTCLoss(CTCLoss):
+    def __init__(self, model_name_list=[], key=None, name="loss_ctc"):
+        super().__init__()
+        self.model_name_list = model_name_list
+        self.key = key
+        self.name = name
+
+    def forward(self, predicts, batch):
+        loss_dict = dict()
+        for idx, model_name in enumerate(self.model_name_list):
+            out = predicts[model_name]
+            if self.key is not None:
+                out = out[self.key]
+            loss = super().forward(out, batch)
+            if isinstance(loss, dict):
+                for key in loss:
+                    loss_dict["{}_{}_{}".format(self.name, model_name,
+                                                idx)] = loss[key]
+            else:
+                loss_dict["{}_{}".format(self.name, model_name)] = loss
+        return loss_dict
+
+
+class DistillationDistanceLoss(DistanceLoss):
+    """
+    """
+
+    def __init__(self,
+                 mode="l2",
+                 model_name_pairs=[],
+                 key=None,
+                 name="loss_distance",
+                 **kargs):
+        super().__init__(mode=mode, **kargs)
+        assert isinstance(model_name_pairs, list)
+        self.key = key
+        self.model_name_pairs = model_name_pairs
+        self.name = name + "_l2"
+
+    def forward(self, predicts, batch):
+        loss_dict = dict()
+        for idx, pair in enumerate(self.model_name_pairs):
+            out1 = predicts[pair[0]]
+            out2 = predicts[pair[1]]
+            if self.key is not None:
+                out1 = out1[self.key]
+                out2 = out2[self.key]
+            loss = super().forward(out1, out2)
+            if isinstance(loss, dict):
+                for key in loss:
+                    loss_dict["{}_{}_{}".format(self.name, key, idx)] = loss[
+                        key]
+            else:
+                loss_dict["{}_{}_{}_{}".format(self.name, pair[0], pair[1],
+                                               idx)] = loss
+        return loss_dict

ppocr/losses/rec_ctc_loss.py

@@ -25,7 +25,7 @@ class CTCLoss(nn.Layer):
         super(CTCLoss, self).__init__()
         self.loss_func = nn.CTCLoss(blank=0, reduction='none')
 
-    def __call__(self, predicts, batch):
+    def forward(self, predicts, batch):
         predicts = predicts.transpose((1, 0, 2))
         N, B, _ = predicts.shape
         preds_lengths = paddle.to_tensor([N] * B, dtype='int64')

ppocr/losses/table_att_loss.py

+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import paddle
+from paddle import nn
+from paddle.nn import functional as F
+from paddle import fluid
+
+class TableAttentionLoss(nn.Layer):
+    def __init__(self, structure_weight, loc_weight, use_giou=False, giou_weight=1.0, **kwargs):
+        super(TableAttentionLoss, self).__init__()
+        self.loss_func = nn.CrossEntropyLoss(weight=None, reduction='none')
+        self.structure_weight = structure_weight
+        self.loc_weight = loc_weight
+        self.use_giou = use_giou
+        self.giou_weight = giou_weight
+        
+    def giou_loss(self, preds, bbox, eps=1e-7, reduction='mean'):
+        '''
+        :param preds:[[x1,y1,x2,y2], [x1,y1,x2,y2],,,]
+        :param bbox:[[x1,y1,x2,y2], [x1,y1,x2,y2],,,]
+        :return: loss
+        '''
+        ix1 = fluid.layers.elementwise_max(preds[:, 0], bbox[:, 0])
+        iy1 = fluid.layers.elementwise_max(preds[:, 1], bbox[:, 1])
+        ix2 = fluid.layers.elementwise_min(preds[:, 2], bbox[:, 2])
+        iy2 = fluid.layers.elementwise_min(preds[:, 3], bbox[:, 3])
+
+        iw = fluid.layers.clip(ix2 - ix1 + 1e-3, 0., 1e10)
+        ih = fluid.layers.clip(iy2 - iy1 + 1e-3, 0., 1e10)
+
+        # overlap
+        inters = iw * ih
+
+        # union
+        uni = (preds[:, 2] - preds[:, 0] + 1e-3) * (preds[:, 3] - preds[:, 1] + 1e-3
+            ) + (bbox[:, 2] - bbox[:, 0] + 1e-3) * (
+            bbox[:, 3] - bbox[:, 1] + 1e-3) - inters + eps
+
+        # ious
+        ious = inters / uni
+
+        ex1 = fluid.layers.elementwise_min(preds[:, 0], bbox[:, 0])
+        ey1 = fluid.layers.elementwise_min(preds[:, 1], bbox[:, 1])
+        ex2 = fluid.layers.elementwise_max(preds[:, 2], bbox[:, 2])
+        ey2 = fluid.layers.elementwise_max(preds[:, 3], bbox[:, 3])
+        ew = fluid.layers.clip(ex2 - ex1 + 1e-3, 0., 1e10)
+        eh = fluid.layers.clip(ey2 - ey1 + 1e-3, 0., 1e10)
+
+        # enclose erea
+        enclose = ew * eh + eps
+        giou = ious - (enclose - uni) / enclose
+
+        loss = 1 - giou
+
+        if reduction == 'mean':
+            loss = paddle.mean(loss)
+        elif reduction == 'sum':
+            loss = paddle.sum(loss)
+        else:
+            raise NotImplementedError
+        return loss
+
+    def forward(self, predicts, batch):
+        structure_probs = predicts['structure_probs']
+        structure_targets = batch[1].astype("int64")
+        structure_targets = structure_targets[:, 1:]
+        if len(batch) == 6:
+            structure_mask = batch[5].astype("int64")
+            structure_mask = structure_mask[:, 1:]
+            structure_mask = paddle.reshape(structure_mask, [-1])
+        structure_probs = paddle.reshape(structure_probs, [-1, structure_probs.shape[-1]])
+        structure_targets = paddle.reshape(structure_targets, [-1])
+        structure_loss = self.loss_func(structure_probs, structure_targets)
+        
+        if len(batch) == 6:
+             structure_loss = structure_loss * structure_mask
+            
+#         structure_loss = paddle.sum(structure_loss) * self.structure_weight
+        structure_loss = paddle.mean(structure_loss) * self.structure_weight
+        
+        loc_preds = predicts['loc_preds']
+        loc_targets = batch[2].astype("float32")
+        loc_targets_mask = batch[4].astype("float32")
+        loc_targets = loc_targets[:, 1:, :]
+        loc_targets_mask = loc_targets_mask[:, 1:, :]
+        loc_loss = F.mse_loss(loc_preds * loc_targets_mask, loc_targets) * self.loc_weight
+        if self.use_giou:
+            loc_loss_giou = self.giou_loss(loc_preds * loc_targets_mask, loc_targets) * self.giou_weight
+            total_loss = structure_loss + loc_loss + loc_loss_giou
+            return {'loss':total_loss, "structure_loss":structure_loss, "loc_loss":loc_loss, "loc_loss_giou":loc_loss_giou}
+        else:
+            total_loss = structure_loss + loc_loss            
+            return {'loss':total_loss, "structure_loss":structure_loss, "loc_loss":loc_loss}
\ No newline at end of file

ppocr/metrics/__init__.py

@@ -19,20 +19,23 @@ from __future__ import unicode_literals
 
 import copy
 
-__all__ = ['build_metric']
+__all__ = ["build_metric"]
 
+from .det_metric import DetMetric
+from .rec_metric import RecMetric
+from .cls_metric import ClsMetric
+from .e2e_metric import E2EMetric
+from .distillation_metric import DistillationMetric
+from .table_metric import TableMetric
 
 def build_metric(config):
-    from .det_metric import DetMetric
-    from .rec_metric import RecMetric
-    from .cls_metric import ClsMetric
-    from .e2e_metric import E2EMetric
-
-    support_dict = ['DetMetric', 'RecMetric', 'ClsMetric', 'E2EMetric']
+    support_dict = [
+        "DetMetric", "RecMetric", "ClsMetric", "E2EMetric", "DistillationMetric", "TableMetric"
+    ]
 
     config = copy.deepcopy(config)
-    module_name = config.pop('name')
+    module_name = config.pop("name")
     assert module_name in support_dict, Exception(
-        'metric only support {}'.format(support_dict))
+        "metric only support {}".format(support_dict))
     module_class = eval(module_name)(**config)
     return module_class

ppocr/metrics/distillation_metric.py

+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import importlib
+import copy
+
+from .rec_metric import RecMetric
+from .det_metric import DetMetric
+from .e2e_metric import E2EMetric
+from .cls_metric import ClsMetric
+
+
+class DistillationMetric(object):
+    def __init__(self,
+                 key=None,
+                 base_metric_name="RecMetric",
+                 main_indicator='acc',
+                 **kwargs):
+        self.main_indicator = main_indicator
+        self.key = key
+        self.main_indicator = main_indicator
+        self.base_metric_name = base_metric_name
+        self.kwargs = kwargs
+        self.metrics = None
+
+    def _init_metrcis(self, preds):
+        self.metrics = dict()
+        mod = importlib.import_module(__name__)
+        for key in preds:
+            self.metrics[key] = getattr(mod, self.base_metric_name)(
+                main_indicator=self.main_indicator, **self.kwargs)
+            self.metrics[key].reset()
+
+    def __call__(self, preds, *args, **kwargs):
+        assert isinstance(preds, dict)
+        if self.metrics is None:
+            self._init_metrcis(preds)
+        output = dict()
+        for key in preds:
+            metric = self.metrics[key].__call__(preds[key], *args, **kwargs)
+            for sub_key in metric:
+                output["{}_{}".format(key, sub_key)] = metric[sub_key]
+        return output
+
+    def get_metric(self):
+        """
+        return metrics {
+                 'acc': 0,
+                 'norm_edit_dis': 0,
+            }
+        """
+        output = dict()
+        for key in self.metrics:
+            metric = self.metrics[key].get_metric()
+            # main indicator
+            if key == self.key:
+                output.update(metric)
+            else:
+                for sub_key in metric:
+                    output["{}_{}".format(key, sub_key)] = metric[sub_key]
+        return output
+
+    def reset(self):
+        for key in self.metrics:
+            self.metrics[key].reset()

ppocr/metrics/table_metric.py

+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import numpy as np
+class TableMetric(object):
+    def __init__(self, main_indicator='acc', **kwargs):
+        self.main_indicator = main_indicator
+        self.reset()
+
+    def __call__(self, pred, batch, *args, **kwargs):
+        structure_probs = pred['structure_probs'].numpy()
+        structure_labels = batch[1]
+        correct_num = 0
+        all_num = 0
+        structure_probs = np.argmax(structure_probs, axis=2)
+        structure_labels = structure_labels[:, 1:]
+        batch_size = structure_probs.shape[0]
+        for bno in range(batch_size):
+            all_num += 1
+            if (structure_probs[bno] == structure_labels[bno]).all():
+                correct_num += 1
+        self.correct_num += correct_num
+        self.all_num += all_num
+        return {
+            'acc': correct_num * 1.0 / all_num,
+        }
+
+    def get_metric(self):
+        """
+        return metrics {
+                 'acc': 0,
+            }
+        """
+        acc = 1.0 * self.correct_num / self.all_num
+        self.reset()
+        return {'acc': acc}
+
+    def reset(self):
+        self.correct_num = 0
+        self.all_num = 0

ppocr/modeling/architectures/__init__.py

@@ -13,12 +13,20 @@
 # limitations under the License.
 
 import copy
+import importlib
+
+from .base_model import BaseModel
+from .distillation_model import DistillationModel
 
 __all__ = ['build_model']
 
+
 def build_model(config):
-    from .base_model import BaseModel
-    
     config = copy.deepcopy(config)
-    module_class = BaseModel(config)
-    return module_class
\ No newline at end of file
+    if not "name" in config:
+        arch = BaseModel(config)
+    else:
+        name = config.pop("name")
+        mod = importlib.import_module(__name__)
+        arch = getattr(mod, name)(config)
+    return arch

ppocr/modeling/architectures/base_model.py

-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -32,7 +32,6 @@ class BaseModel(nn.Layer):
             config (dict): the super parameters for module.
         """
         super(BaseModel, self).__init__()
-
         in_channels = config.get('in_channels', 3)
         model_type = config['model_type']
         # build transfrom,
@@ -68,14 +67,20 @@ class BaseModel(nn.Layer):
         config["Head"]['in_channels'] = in_channels
         self.head = build_head(config["Head"])
 
+        self.return_all_feats = config.get("return_all_feats", False)
+
     def forward(self, x, data=None):
+        y = dict()
         if self.use_transform:
             x = self.transform(x)
         x = self.backbone(x)
+        y["backbone_out"] = x
         if self.use_neck:
             x = self.neck(x)
-        if data is None:
-            x = self.head(x)
+        y["neck_out"] = x
+        x = self.head(x, targets=data)
+        y["head_out"] = x
+        if self.return_all_feats:
+            return y
         else:
-            x = self.head(x, data)
-        return x
+            return x

ppocr/modeling/architectures/distillation_model.py

+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+from paddle import nn
+from ppocr.modeling.transforms import build_transform
+from ppocr.modeling.backbones import build_backbone
+from ppocr.modeling.necks import build_neck
+from ppocr.modeling.heads import build_head
+from .base_model import BaseModel
+from ppocr.utils.save_load import init_model
+
+__all__ = ['DistillationModel']
+
+
+class DistillationModel(nn.Layer):
+    def __init__(self, config):
+        """
+        the module for OCR distillation.
+        args:
+            config (dict): the super parameters for module.
+        """
+        super().__init__()
+        self.model_list = []
+        self.model_name_list = []
+        for key in config["Models"]:
+            model_config = config["Models"][key]
+            freeze_params = False
+            pretrained = None
+            if "freeze_params" in model_config:
+                freeze_params = model_config.pop("freeze_params")
+            if "pretrained" in model_config:
+                pretrained = model_config.pop("pretrained")
+            model = BaseModel(model_config)
+            if pretrained is not None:
+                init_model(model, path=pretrained)
+            if freeze_params:
+                for param in model.parameters():
+                    param.trainable = False
+            self.model_list.append(self.add_sublayer(key, model))
+            self.model_name_list.append(key)
+
+    def forward(self, x):
+        result_dict = dict()
+        for idx, model_name in enumerate(self.model_name_list):
+            result_dict[model_name] = self.model_list[idx](x)
+        return result_dict

ppocr/modeling/backbones/__init__.py

@@ -29,6 +29,10 @@ def build_backbone(config, model_type):
     elif model_type == 'e2e':
         from .e2e_resnet_vd_pg import ResNet
         support_dict = ['ResNet']
+    elif model_type == "table":
+        from .table_resnet_vd import ResNet
+        from .table_mobilenet_v3 import MobileNetV3
+        support_dict = ['ResNet', 'MobileNetV3']
     else:
         raise NotImplementedError
 

ppocr/modeling/backbones/det_mobilenet_v3.py

@@ -102,8 +102,7 @@ class MobileNetV3(nn.Layer):
             padding=1,
             groups=1,
             if_act=True,
-            act='hardswish',
-            name='conv1')
+            act='hardswish')
 
         self.stages = []
         self.out_channels = []
@@ -125,8 +124,7 @@ class MobileNetV3(nn.Layer):
                     kernel_size=k,
                     stride=s,
                     use_se=se,
-                    act=nl,
-                    name="conv" + str(i + 2)))
+                    act=nl))
             inplanes = make_divisible(scale * c)
             i += 1
         block_list.append(
@@ -138,8 +136,7 @@ class MobileNetV3(nn.Layer):
                 padding=0,
                 groups=1,
                 if_act=True,
-                act='hardswish',
-                name='conv_last'))
+                act='hardswish'))
         self.stages.append(nn.Sequential(*block_list))
         self.out_channels.append(make_divisible(scale * cls_ch_squeeze))
         for i, stage in enumerate(self.stages):
@@ -163,8 +160,7 @@ class ConvBNLayer(nn.Layer):
                  padding,
                  groups=1,
                  if_act=True,
-                 act=None,
-                 name=None):
+                 act=None):
         super(ConvBNLayer, self).__init__()
         self.if_act = if_act
         self.act = act
@@ -175,16 +171,9 @@ class ConvBNLayer(nn.Layer):
             stride=stride,
             padding=padding,
             groups=groups,
-            weight_attr=ParamAttr(name=name + '_weights'),
             bias_attr=False)
 
-        self.bn = nn.BatchNorm(
-            num_channels=out_channels,
-            act=None,
-            param_attr=ParamAttr(name=name + "_bn_scale"),
-            bias_attr=ParamAttr(name=name + "_bn_offset"),
-            moving_mean_name=name + "_bn_mean",
-            moving_variance_name=name + "_bn_variance")
+        self.bn = nn.BatchNorm(num_channels=out_channels, act=None)
 
     def forward(self, x):
         x = self.conv(x)
@@ -209,8 +198,7 @@ class ResidualUnit(nn.Layer):
                  kernel_size,
                  stride,
                  use_se,
-                 act=None,
-                 name=''):
+                 act=None):
         super(ResidualUnit, self).__init__()
         self.if_shortcut = stride == 1 and in_channels == out_channels
         self.if_se = use_se
@@ -222,8 +210,7 @@ class ResidualUnit(nn.Layer):
             stride=1,
             padding=0,
             if_act=True,
-            act=act,
-            name=name + "_expand")
+            act=act)
         self.bottleneck_conv = ConvBNLayer(
             in_channels=mid_channels,
             out_channels=mid_channels,
@@ -232,10 +219,9 @@ class ResidualUnit(nn.Layer):
             padding=int((kernel_size - 1) // 2),
             groups=mid_channels,
             if_act=True,
-            act=act,
-            name=name + "_depthwise")
+            act=act)
         if self.if_se:
-            self.mid_se = SEModule(mid_channels, name=name + "_se")
+            self.mid_se = SEModule(mid_channels)
         self.linear_conv = ConvBNLayer(
             in_channels=mid_channels,
             out_channels=out_channels,
@@ -243,8 +229,7 @@ class ResidualUnit(nn.Layer):
             stride=1,
             padding=0,
             if_act=False,
-            act=None,
-            name=name + "_linear")
+            act=None)
 
     def forward(self, inputs):
         x = self.expand_conv(inputs)
@@ -258,7 +243,7 @@ class ResidualUnit(nn.Layer):
 
 
 class SEModule(nn.Layer):
-    def __init__(self, in_channels, reduction=4, name=""):
+    def __init__(self, in_channels, reduction=4):
         super(SEModule, self).__init__()
         self.avg_pool = nn.AdaptiveAvgPool2D(1)
         self.conv1 = nn.Conv2D(
@@ -266,17 +251,13 @@ class SEModule(nn.Layer):
             out_channels=in_channels // reduction,
             kernel_size=1,
             stride=1,
-            padding=0,
-            weight_attr=ParamAttr(name=name + "_1_weights"),
-            bias_attr=ParamAttr(name=name + "_1_offset"))
+            padding=0)
         self.conv2 = nn.Conv2D(
             in_channels=in_channels // reduction,
             out_channels=in_channels,
             kernel_size=1,
             stride=1,
-            padding=0,
-            weight_attr=ParamAttr(name + "_2_weights"),
-            bias_attr=ParamAttr(name=name + "_2_offset"))
+            padding=0)
 
     def forward(self, inputs):
         outputs = self.avg_pool(inputs)

ppocr/modeling/backbones/rec_mobilenet_v3.py

@@ -96,8 +96,7 @@ class MobileNetV3(nn.Layer):
             padding=1,
             groups=1,
             if_act=True,
-            act='hardswish',
-            name='conv1')
+            act='hardswish')
         i = 0
         block_list = []
         inplanes = make_divisible(inplanes * scale)
@@ -110,8 +109,7 @@ class MobileNetV3(nn.Layer):
                     kernel_size=k,
                     stride=s,
                     use_se=se,
-                    act=nl,
-                    name='conv' + str(i + 2)))
+                    act=nl))
             inplanes = make_divisible(scale * c)
             i += 1
         self.blocks = nn.Sequential(*block_list)
@@ -124,8 +122,7 @@ class MobileNetV3(nn.Layer):
             padding=0,
             groups=1,
             if_act=True,
-            act='hardswish',
-            name='conv_last')
+            act='hardswish')
 
         self.pool = nn.MaxPool2D(kernel_size=2, stride=2, padding=0)
         self.out_channels = make_divisible(scale * cls_ch_squeeze)

ppocr/modeling/backbones/table_mobilenet_v3.py

+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import paddle
+from paddle import nn
+import paddle.nn.functional as F
+from paddle import ParamAttr
+
+__all__ = ['MobileNetV3']
+
+
+def make_divisible(v, divisor=8, min_value=None):
+    if min_value is None:
+        min_value = divisor
+    new_v = max(min_value, int(v + divisor / 2) // divisor * divisor)
+    if new_v < 0.9 * v:
+        new_v += divisor
+    return new_v
+
+
+class MobileNetV3(nn.Layer):
+    def __init__(self,
+                 in_channels=3,
+                 model_name='large',
+                 scale=0.5,
+                 disable_se=False,
+                 **kwargs):
+        """
+        the MobilenetV3 backbone network for detection module.
+        Args:
+            params(dict): the super parameters for build network
+        """
+        super(MobileNetV3, self).__init__()
+
+        self.disable_se = disable_se
+
+        if model_name == "large":
+            cfg = [
+                # k, exp, c,  se,     nl,  s,
+                [3, 16, 16, False, 'relu', 1],
+                [3, 64, 24, False, 'relu', 2],
+                [3, 72, 24, False, 'relu', 1],
+                [5, 72, 40, True, 'relu', 2],
+                [5, 120, 40, True, 'relu', 1],
+                [5, 120, 40, True, 'relu', 1],
+                [3, 240, 80, False, 'hardswish', 2],
+                [3, 200, 80, False, 'hardswish', 1],
+                [3, 184, 80, False, 'hardswish', 1],
+                [3, 184, 80, False, 'hardswish', 1],
+                [3, 480, 112, True, 'hardswish', 1],
+                [3, 672, 112, True, 'hardswish', 1],
+                [5, 672, 160, True, 'hardswish', 2],
+                [5, 960, 160, True, 'hardswish', 1],
+                [5, 960, 160, True, 'hardswish', 1],
+            ]
+            cls_ch_squeeze = 960
+        elif model_name == "small":
+            cfg = [
+                # k, exp, c,  se,     nl,  s,
+                [3, 16, 16, True, 'relu', 2],
+                [3, 72, 24, False, 'relu', 2],
+                [3, 88, 24, False, 'relu', 1],
+                [5, 96, 40, True, 'hardswish', 2],
+                [5, 240, 40, True, 'hardswish', 1],
+                [5, 240, 40, True, 'hardswish', 1],
+                [5, 120, 48, True, 'hardswish', 1],
+                [5, 144, 48, True, 'hardswish', 1],
+                [5, 288, 96, True, 'hardswish', 2],
+                [5, 576, 96, True, 'hardswish', 1],
+                [5, 576, 96, True, 'hardswish', 1],
+            ]
+            cls_ch_squeeze = 576
+        else:
+            raise NotImplementedError("mode[" + model_name +
+                                      "_model] is not implemented!")
+
+        supported_scale = [0.35, 0.5, 0.75, 1.0, 1.25]
+        assert scale in supported_scale, \
+            "supported scale are {} but input scale is {}".format(supported_scale, scale)
+        inplanes = 16
+        # conv1
+        self.conv = ConvBNLayer(
+            in_channels=in_channels,
+            out_channels=make_divisible(inplanes * scale),
+            kernel_size=3,
+            stride=2,
+            padding=1,
+            groups=1,
+            if_act=True,
+            act='hardswish',
+            name='conv1')
+
+        self.stages = []
+        self.out_channels = []
+        block_list = []
+        i = 0
+        inplanes = make_divisible(inplanes * scale)
+        for (k, exp, c, se, nl, s) in cfg:
+            se = se and not self.disable_se
+            start_idx = 2 if model_name == 'large' else 0
+            if s == 2 and i > start_idx:
+                self.out_channels.append(inplanes)
+                self.stages.append(nn.Sequential(*block_list))
+                block_list = []
+            block_list.append(
+                ResidualUnit(
+                    in_channels=inplanes,
+                    mid_channels=make_divisible(scale * exp),
+                    out_channels=make_divisible(scale * c),
+                    kernel_size=k,
+                    stride=s,
+                    use_se=se,
+                    act=nl,
+                    name="conv" + str(i + 2)))
+            inplanes = make_divisible(scale * c)
+            i += 1
+        block_list.append(
+            ConvBNLayer(
+                in_channels=inplanes,
+                out_channels=make_divisible(scale * cls_ch_squeeze),
+                kernel_size=1,
+                stride=1,
+                padding=0,
+                groups=1,
+                if_act=True,
+                act='hardswish',
+                name='conv_last'))
+        self.stages.append(nn.Sequential(*block_list))
+        self.out_channels.append(make_divisible(scale * cls_ch_squeeze))
+        for i, stage in enumerate(self.stages):
+            self.add_sublayer(sublayer=stage, name="stage{}".format(i))
+
+    def forward(self, x):
+        x = self.conv(x)
+        out_list = []
+        for stage in self.stages:
+            x = stage(x)
+            out_list.append(x)
+        return out_list
+
+
+class ConvBNLayer(nn.Layer):
+    def __init__(self,
+                 in_channels,
+                 out_channels,
+                 kernel_size,
+                 stride,
+                 padding,
+                 groups=1,
+                 if_act=True,
+                 act=None,
+                 name=None):
+        super(ConvBNLayer, self).__init__()
+        self.if_act = if_act
+        self.act = act
+        self.conv = nn.Conv2D(
+            in_channels=in_channels,
+            out_channels=out_channels,
+            kernel_size=kernel_size,
+            stride=stride,
+            padding=padding,
+            groups=groups,
+            weight_attr=ParamAttr(name=name + '_weights'),
+            bias_attr=False)
+
+        self.bn = nn.BatchNorm(
+            num_channels=out_channels,
+            act=None,
+            param_attr=ParamAttr(name=name + "_bn_scale"),
+            bias_attr=ParamAttr(name=name + "_bn_offset"),
+            moving_mean_name=name + "_bn_mean",
+            moving_variance_name=name + "_bn_variance")
+
+    def forward(self, x):
+        x = self.conv(x)
+        x = self.bn(x)
+        if self.if_act:
+            if self.act == "relu":
+                x = F.relu(x)
+            elif self.act == "hardswish":
+                x = F.hardswish(x)
+            else:
+                print("The activation function({}) is selected incorrectly.".
+                      format(self.act))
+                exit()
+        return x
+
+
+class ResidualUnit(nn.Layer):
+    def __init__(self,
+                 in_channels,
+                 mid_channels,
+                 out_channels,
+                 kernel_size,
+                 stride,
+                 use_se,
+                 act=None,
+                 name=''):
+        super(ResidualUnit, self).__init__()
+        self.if_shortcut = stride == 1 and in_channels == out_channels
+        self.if_se = use_se
+
+        self.expand_conv = ConvBNLayer(
+            in_channels=in_channels,
+            out_channels=mid_channels,
+            kernel_size=1,
+            stride=1,
+            padding=0,
+            if_act=True,
+            act=act,
+            name=name + "_expand")
+        self.bottleneck_conv = ConvBNLayer(
+            in_channels=mid_channels,
+            out_channels=mid_channels,
+            kernel_size=kernel_size,
+            stride=stride,
+            padding=int((kernel_size - 1) // 2),
+            groups=mid_channels,
+            if_act=True,
+            act=act,
+            name=name + "_depthwise")
+        if self.if_se:
+            self.mid_se = SEModule(mid_channels, name=name + "_se")
+        self.linear_conv = ConvBNLayer(
+            in_channels=mid_channels,
+            out_channels=out_channels,
+            kernel_size=1,
+            stride=1,
+            padding=0,
+            if_act=False,
+            act=None,
+            name=name + "_linear")
+
+    def forward(self, inputs):
+        x = self.expand_conv(inputs)
+        x = self.bottleneck_conv(x)
+        if self.if_se:
+            x = self.mid_se(x)
+        x = self.linear_conv(x)
+        if self.if_shortcut:
+            x = paddle.add(inputs, x)
+        return x
+
+
+class SEModule(nn.Layer):
+    def __init__(self, in_channels, reduction=4, name=""):
+        super(SEModule, self).__init__()
+        self.avg_pool = nn.AdaptiveAvgPool2D(1)
+        self.conv1 = nn.Conv2D(
+            in_channels=in_channels,
+            out_channels=in_channels // reduction,
+            kernel_size=1,
+            stride=1,
+            padding=0,
+            weight_attr=ParamAttr(name=name + "_1_weights"),
+            bias_attr=ParamAttr(name=name + "_1_offset"))
+        self.conv2 = nn.Conv2D(
+            in_channels=in_channels // reduction,
+            out_channels=in_channels,
+            kernel_size=1,
+            stride=1,
+            padding=0,
+            weight_attr=ParamAttr(name + "_2_weights"),
+            bias_attr=ParamAttr(name=name + "_2_offset"))
+
+    def forward(self, inputs):
+        outputs = self.avg_pool(inputs)
+        outputs = self.conv1(outputs)
+        outputs = F.relu(outputs)
+        outputs = self.conv2(outputs)
+        outputs = F.hardsigmoid(outputs, slope=0.2, offset=0.5)
+        return inputs * outputs
\ No newline at end of file

ppocr/modeling/backbones/table_resnet_vd.py

+# copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import paddle
+from paddle import ParamAttr
+import paddle.nn as nn
+import paddle.nn.functional as F
+
+__all__ = ["ResNet"]
+
+
+class ConvBNLayer(nn.Layer):
+    def __init__(
+            self,
+            in_channels,
+            out_channels,
+            kernel_size,
+            stride=1,
+            groups=1,
+            is_vd_mode=False,
+            act=None,
+            name=None, ):
+        super(ConvBNLayer, self).__init__()
+
+        self.is_vd_mode = is_vd_mode
+        self._pool2d_avg = nn.AvgPool2D(
+            kernel_size=2, stride=2, padding=0, ceil_mode=True)
+        self._conv = nn.Conv2D(
+            in_channels=in_channels,
+            out_channels=out_channels,
+            kernel_size=kernel_size,
+            stride=stride,
+            padding=(kernel_size - 1) // 2,
+            groups=groups,
+            weight_attr=ParamAttr(name=name + "_weights"),
+            bias_attr=False)
+        if name == "conv1":
+            bn_name = "bn_" + name
+        else:
+            bn_name = "bn" + name[3:]
+        self._batch_norm = nn.BatchNorm(
+            out_channels,
+            act=act,
+            param_attr=ParamAttr(name=bn_name + '_scale'),
+            bias_attr=ParamAttr(bn_name + '_offset'),
+            moving_mean_name=bn_name + '_mean',
+            moving_variance_name=bn_name + '_variance')
+
+    def forward(self, inputs):
+        if self.is_vd_mode:
+            inputs = self._pool2d_avg(inputs)
+        y = self._conv(inputs)
+        y = self._batch_norm(y)
+        return y
+
+
+class BottleneckBlock(nn.Layer):
+    def __init__(self,
+                 in_channels,
+                 out_channels,
+                 stride,
+                 shortcut=True,
+                 if_first=False,
+                 name=None):
+        super(BottleneckBlock, self).__init__()
+
+        self.conv0 = ConvBNLayer(
+            in_channels=in_channels,
+            out_channels=out_channels,
+            kernel_size=1,
+            act='relu',
+            name=name + "_branch2a")
+        self.conv1 = ConvBNLayer(
+            in_channels=out_channels,
+            out_channels=out_channels,
+            kernel_size=3,
+            stride=stride,
+            act='relu',
+            name=name + "_branch2b")
+        self.conv2 = ConvBNLayer(
+            in_channels=out_channels,
+            out_channels=out_channels * 4,
+            kernel_size=1,
+            act=None,
+            name=name + "_branch2c")
+
+        if not shortcut:
+            self.short = ConvBNLayer(
+                in_channels=in_channels,
+                out_channels=out_channels * 4,
+                kernel_size=1,
+                stride=1,
+                is_vd_mode=False if if_first else True,
+                name=name + "_branch1")
+
+        self.shortcut = shortcut
+
+    def forward(self, inputs):
+        y = self.conv0(inputs)
+        conv1 = self.conv1(y)
+        conv2 = self.conv2(conv1)
+
+        if self.shortcut:
+            short = inputs
+        else:
+            short = self.short(inputs)
+        y = paddle.add(x=short, y=conv2)
+        y = F.relu(y)
+        return y
+
+
+class BasicBlock(nn.Layer):
+    def __init__(self,
+                 in_channels,
+                 out_channels,
+                 stride,
+                 shortcut=True,
+                 if_first=False,
+                 name=None):
+        super(BasicBlock, self).__init__()
+        self.stride = stride
+        self.conv0 = ConvBNLayer(
+            in_channels=in_channels,
+            out_channels=out_channels,
+            kernel_size=3,
+            stride=stride,
+            act='relu',
+            name=name + "_branch2a")
+        self.conv1 = ConvBNLayer(
+            in_channels=out_channels,
+            out_channels=out_channels,
+            kernel_size=3,
+            act=None,
+            name=name + "_branch2b")
+
+        if not shortcut:
+            self.short = ConvBNLayer(
+                in_channels=in_channels,
+                out_channels=out_channels,
+                kernel_size=1,
+                stride=1,
+                is_vd_mode=False if if_first else True,
+                name=name + "_branch1")
+
+        self.shortcut = shortcut
+
+    def forward(self, inputs):
+        y = self.conv0(inputs)
+        conv1 = self.conv1(y)
+
+        if self.shortcut:
+            short = inputs
+        else:
+            short = self.short(inputs)
+        y = paddle.add(x=short, y=conv1)
+        y = F.relu(y)
+        return y
+
+
+class ResNet(nn.Layer):
+    def __init__(self, in_channels=3, layers=50, **kwargs):
+        super(ResNet, self).__init__()
+        
+        self.layers = layers
+        supported_layers = [18, 34, 50, 101, 152, 200]
+        assert layers in supported_layers, \
+            "supported layers are {} but input layer is {}".format(
+                supported_layers, layers)
+
+        if layers == 18:
+            depth = [2, 2, 2, 2]
+        elif layers == 34 or layers == 50:
+            depth = [3, 4, 6, 3]
+        elif layers == 101:
+            depth = [3, 4, 23, 3]
+        elif layers == 152:
+            depth = [3, 8, 36, 3]
+        elif layers == 200:
+            depth = [3, 12, 48, 3]
+        num_channels = [64, 256, 512,
+                        1024] if layers >= 50 else [64, 64, 128, 256]
+        num_filters = [64, 128, 256, 512]
+
+        self.conv1_1 = ConvBNLayer(
+            in_channels=in_channels,
+            out_channels=32,
+            kernel_size=3,
+            stride=2,
+            act='relu',
+            name="conv1_1")
+        self.conv1_2 = ConvBNLayer(
+            in_channels=32,
+            out_channels=32,
+            kernel_size=3,
+            stride=1,
+            act='relu',
+            name="conv1_2")
+        self.conv1_3 = ConvBNLayer(
+            in_channels=32,
+            out_channels=64,
+            kernel_size=3,
+            stride=1,
+            act='relu',
+            name="conv1_3")
+        self.pool2d_max = nn.MaxPool2D(kernel_size=3, stride=2, padding=1)
+
+        self.stages = []
+        self.out_channels = []
+        if layers >= 50:
+            for block in range(len(depth)):
+                block_list = []
+                shortcut = False
+                for i in range(depth[block]):
+                    if layers in [101, 152] and block == 2:
+                        if i == 0:
+                            conv_name = "res" + str(block + 2) + "a"
+                        else:
+                            conv_name = "res" + str(block + 2) + "b" + str(i)
+                    else:
+                        conv_name = "res" + str(block + 2) + chr(97 + i)
+                    bottleneck_block = self.add_sublayer(
+                        'bb_%d_%d' % (block, i),
+                        BottleneckBlock(
+                            in_channels=num_channels[block]
+                            if i == 0 else num_filters[block] * 4,
+                            out_channels=num_filters[block],
+                            stride=2 if i == 0 and block != 0 else 1,
+                            shortcut=shortcut,
+                            if_first=block == i == 0,
+                            name=conv_name))
+                    shortcut = True
+                    block_list.append(bottleneck_block)
+                self.out_channels.append(num_filters[block] * 4)
+                self.stages.append(nn.Sequential(*block_list))
+        else:
+            for block in range(len(depth)):
+                block_list = []
+                shortcut = False
+                for i in range(depth[block]):
+                    conv_name = "res" + str(block + 2) + chr(97 + i)
+                    basic_block = self.add_sublayer(
+                        'bb_%d_%d' % (block, i),
+                        BasicBlock(
+                            in_channels=num_channels[block]
+                            if i == 0 else num_filters[block],
+                            out_channels=num_filters[block],
+                            stride=2 if i == 0 and block != 0 else 1,
+                            shortcut=shortcut,
+                            if_first=block == i == 0,
+                            name=conv_name))
+                    shortcut = True
+                    block_list.append(basic_block)
+                self.out_channels.append(num_filters[block])
+                self.stages.append(nn.Sequential(*block_list))
+
+    def forward(self, inputs):
+        y = self.conv1_1(inputs)
+        y = self.conv1_2(y)
+        y = self.conv1_3(y)
+        y = self.pool2d_max(y)
+        out = []
+        for block in self.stages:
+            y = block(y)
+            out.append(y)
+        return out

ppocr/modeling/heads/__init__.py

@@ -31,8 +31,10 @@ def build_head(config):
     from .cls_head import ClsHead
     support_dict = [
         'DBHead', 'EASTHead', 'SASTHead', 'CTCHead', 'ClsHead', 'AttentionHead',
-        'SRNHead', 'PGHead']
+        'SRNHead', 'PGHead', 'TableAttentionHead']
 
+    #table head
+    from .table_att_head import TableAttentionHead
 
     module_name = config.pop('name')
     assert module_name in support_dict, Exception('head only support {}'.format(

ppocr/modeling/heads/cls_head.py

@@ -43,7 +43,7 @@ class ClsHead(nn.Layer):
                 initializer=nn.initializer.Uniform(-stdv, stdv)),
             bias_attr=ParamAttr(name="fc_0.b_0"), )
 
-    def forward(self, x):
+    def forward(self, x, targets=None):
         x = self.pool(x)
         x = paddle.reshape(x, shape=[x.shape[0], x.shape[1]])
         x = self.fc(x)

ppocr/modeling/heads/det_db_head.py

@@ -23,10 +23,10 @@ import paddle.nn.functional as F
 from paddle import ParamAttr
 
 
-def get_bias_attr(k, name):
+def get_bias_attr(k):
     stdv = 1.0 / math.sqrt(k * 1.0)
     initializer = paddle.nn.initializer.Uniform(-stdv, stdv)
-    bias_attr = ParamAttr(initializer=initializer, name=name + "_b_attr")
+    bias_attr = ParamAttr(initializer=initializer)
     return bias_attr
 
 
@@ -38,18 +38,14 @@ class Head(nn.Layer):
             out_channels=in_channels // 4,
             kernel_size=3,
             padding=1,
-            weight_attr=ParamAttr(name=name_list[0] + '.w_0'),
+            weight_attr=ParamAttr(),
             bias_attr=False)
         self.conv_bn1 = nn.BatchNorm(
             num_channels=in_channels // 4,
             param_attr=ParamAttr(
-                name=name_list[1] + '.w_0',
                 initializer=paddle.nn.initializer.Constant(value=1.0)),
             bias_attr=ParamAttr(
-                name=name_list[1] + '.b_0',
                 initializer=paddle.nn.initializer.Constant(value=1e-4)),
-            moving_mean_name=name_list[1] + '.w_1',
-            moving_variance_name=name_list[1] + '.w_2',
             act='relu')
         self.conv2 = nn.Conv2DTranspose(
             in_channels=in_channels // 4,
@@ -57,19 +53,14 @@ class Head(nn.Layer):
             kernel_size=2,
             stride=2,
             weight_attr=ParamAttr(
-                name=name_list[2] + '.w_0',
                 initializer=paddle.nn.initializer.KaimingUniform()),
-            bias_attr=get_bias_attr(in_channels // 4, name_list[-1] + "conv2"))
+            bias_attr=get_bias_attr(in_channels // 4))
         self.conv_bn2 = nn.BatchNorm(
             num_channels=in_channels // 4,
             param_attr=ParamAttr(
-                name=name_list[3] + '.w_0',
                 initializer=paddle.nn.initializer.Constant(value=1.0)),
             bias_attr=ParamAttr(
-                name=name_list[3] + '.b_0',
                 initializer=paddle.nn.initializer.Constant(value=1e-4)),
-            moving_mean_name=name_list[3] + '.w_1',
-            moving_variance_name=name_list[3] + '.w_2',
             act="relu")
         self.conv3 = nn.Conv2DTranspose(
             in_channels=in_channels // 4,
@@ -77,10 +68,8 @@ class Head(nn.Layer):
             kernel_size=2,
             stride=2,
             weight_attr=ParamAttr(
-                name=name_list[4] + '.w_0',
                 initializer=paddle.nn.initializer.KaimingUniform()),
-            bias_attr=get_bias_attr(in_channels // 4, name_list[-1] + "conv3"),
-        )
+            bias_attr=get_bias_attr(in_channels // 4), )
 
     def forward(self, x):
         x = self.conv1(x)
@@ -117,7 +106,7 @@ class DBHead(nn.Layer):
     def step_function(self, x, y):
         return paddle.reciprocal(1 + paddle.exp(-self.k * (x - y)))
 
-    def forward(self, x):
+    def forward(self, x, targets=None):
         shrink_maps = self.binarize(x)
         if not self.training:
             return {'maps': shrink_maps}

ppocr/modeling/heads/det_east_head.py

@@ -109,7 +109,7 @@ class EASTHead(nn.Layer):
             act=None,
             name="f_geo")
 
-    def forward(self, x):
+    def forward(self, x, targets=None):
         f_det = self.det_conv1(x)
         f_det = self.det_conv2(f_det)
         f_score = self.score_conv(f_det)

ppocr/modeling/heads/det_sast_head.py

@@ -116,7 +116,7 @@ class SASTHead(nn.Layer):
         self.head1 = SAST_Header1(in_channels)
         self.head2 = SAST_Header2(in_channels)
 
-    def forward(self, x):
+    def forward(self, x, targets=None):
         f_score, f_border = self.head1(x)
         f_tvo, f_tco = self.head2(x)
 

ppocr/modeling/heads/e2e_pg_head.py

@@ -220,7 +220,7 @@ class PGHead(nn.Layer):
             weight_attr=ParamAttr(name="conv_f_direc{}".format(4)),
             bias_attr=False)
 
-    def forward(self, x):
+    def forward(self, x, targets=None):
         f_score = self.conv_f_score1(x)
         f_score = self.conv_f_score2(f_score)
         f_score = self.conv_f_score3(f_score)

ppocr/modeling/heads/rec_ctc_head.py

@@ -23,32 +23,57 @@ from paddle import ParamAttr, nn
 from paddle.nn import functional as F
 
 
-def get_para_bias_attr(l2_decay, k, name):
+def get_para_bias_attr(l2_decay, k):
     regularizer = paddle.regularizer.L2Decay(l2_decay)
     stdv = 1.0 / math.sqrt(k * 1.0)
     initializer = nn.initializer.Uniform(-stdv, stdv)
-    weight_attr = ParamAttr(
-        regularizer=regularizer, initializer=initializer, name=name + "_w_attr")
-    bias_attr = ParamAttr(
-        regularizer=regularizer, initializer=initializer, name=name + "_b_attr")
+    weight_attr = ParamAttr(regularizer=regularizer, initializer=initializer)
+    bias_attr = ParamAttr(regularizer=regularizer, initializer=initializer)
     return [weight_attr, bias_attr]
 
 
 class CTCHead(nn.Layer):
-    def __init__(self, in_channels, out_channels, fc_decay=0.0004, **kwargs):
+    def __init__(self,
+                 in_channels,
+                 out_channels,
+                 fc_decay=0.0004,
+                 mid_channels=None,
+                 **kwargs):
         super(CTCHead, self).__init__()
-        weight_attr, bias_attr = get_para_bias_attr(
-            l2_decay=fc_decay, k=in_channels, name='ctc_fc')
-        self.fc = nn.Linear(
-            in_channels,
-            out_channels,
-            weight_attr=weight_attr,
-            bias_attr=bias_attr,
-            name='ctc_fc')
+        if mid_channels is None:
+            weight_attr, bias_attr = get_para_bias_attr(
+                l2_decay=fc_decay, k=in_channels)
+            self.fc = nn.Linear(
+                in_channels,
+                out_channels,
+                weight_attr=weight_attr,
+                bias_attr=bias_attr)
+        else:
+            weight_attr1, bias_attr1 = get_para_bias_attr(
+                l2_decay=fc_decay, k=in_channels)
+            self.fc1 = nn.Linear(
+                in_channels,
+                mid_channels,
+                weight_attr=weight_attr1,
+                bias_attr=bias_attr1)
+
+            weight_attr2, bias_attr2 = get_para_bias_attr(
+                l2_decay=fc_decay, k=mid_channels)
+            self.fc2 = nn.Linear(
+                mid_channels,
+                out_channels,
+                weight_attr=weight_attr2,
+                bias_attr=bias_attr2)
         self.out_channels = out_channels
+        self.mid_channels = mid_channels
 
-    def forward(self, x, labels=None):
-        predicts = self.fc(x)
+    def forward(self, x, targets=None):
+        if self.mid_channels is None:
+            predicts = self.fc(x)
+        else:
+            predicts = self.fc1(x)
+            predicts = self.fc2(predicts)
+            
         if not self.training:
             predicts = F.softmax(predicts, axis=2)
         return predicts

ppocr/modeling/heads/rec_srn_head.py

@@ -250,7 +250,8 @@ class SRNHead(nn.Layer):
 
         self.gsrm.wrap_encoder1.prepare_decoder.emb0 = self.gsrm.wrap_encoder0.prepare_decoder.emb0
 
-    def forward(self, inputs, others):
+    def forward(self, inputs, targets=None):
+        others = targets[-4:]
         encoder_word_pos = others[0]
         gsrm_word_pos = others[1]
         gsrm_slf_attn_bias1 = others[2]

ppocr/modeling/heads/table_att_head.py

+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import paddle
+import paddle.nn as nn
+import paddle.nn.functional as F
+import numpy as np
+
+
+class TableAttentionHead(nn.Layer):
+    def __init__(self, in_channels, hidden_size, loc_type, in_max_len=488, **kwargs):
+        super(TableAttentionHead, self).__init__()
+        self.input_size = in_channels[-1]
+        self.hidden_size = hidden_size
+        self.elem_num = 30
+        self.max_text_length = 100
+        self.max_elem_length = 500
+        self.max_cell_num = 500
+
+        self.structure_attention_cell = AttentionGRUCell(
+            self.input_size, hidden_size, self.elem_num, use_gru=False)
+        self.structure_generator = nn.Linear(hidden_size, self.elem_num)
+        self.loc_type = loc_type
+        self.in_max_len = in_max_len
+        
+        if self.loc_type == 1:
+            self.loc_generator = nn.Linear(hidden_size, 4)
+        else:
+            if self.in_max_len == 640:
+                self.loc_fea_trans = nn.Linear(400, self.max_elem_length+1)
+            elif self.in_max_len == 800:
+                self.loc_fea_trans = nn.Linear(625, self.max_elem_length+1)
+            else:
+                self.loc_fea_trans = nn.Linear(256, self.max_elem_length+1)
+            self.loc_generator = nn.Linear(self.input_size + hidden_size, 4)
+            
+    def _char_to_onehot(self, input_char, onehot_dim):
+        input_ont_hot = F.one_hot(input_char, onehot_dim)
+        return input_ont_hot
+
+    def forward(self, inputs, targets=None):
+        # if and else branch are both needed when you want to assign a variable
+        # if you modify the var in just one branch, then the modification will not work.
+        fea = inputs[-1]
+        if len(fea.shape) == 3:
+            pass
+        else:
+            last_shape = int(np.prod(fea.shape[2:])) # gry added
+            fea = paddle.reshape(fea, [fea.shape[0], fea.shape[1], last_shape])
+            fea = fea.transpose([0, 2, 1])  # (NTC)(batch, width, channels)
+        batch_size = fea.shape[0]
+        
+        hidden = paddle.zeros((batch_size, self.hidden_size))
+        output_hiddens = []
+        if self.training and targets is not None:
+            structure = targets[0]
+            for i in range(self.max_elem_length+1):
+                elem_onehots = self._char_to_onehot(
+                    structure[:, i], onehot_dim=self.elem_num)
+                (outputs, hidden), alpha = self.structure_attention_cell(
+                    hidden, fea, elem_onehots)
+                output_hiddens.append(paddle.unsqueeze(outputs, axis=1))
+            output = paddle.concat(output_hiddens, axis=1)
+            structure_probs = self.structure_generator(output)
+            if self.loc_type == 1:
+                loc_preds = self.loc_generator(output)
+                loc_preds = F.sigmoid(loc_preds)
+            else:
+                loc_fea = fea.transpose([0, 2, 1])
+                loc_fea = self.loc_fea_trans(loc_fea)
+                loc_fea = loc_fea.transpose([0, 2, 1])
+                loc_concat = paddle.concat([output, loc_fea], axis=2)
+                loc_preds = self.loc_generator(loc_concat)
+                loc_preds = F.sigmoid(loc_preds)
+        else:
+            temp_elem = paddle.zeros(shape=[batch_size], dtype="int32")
+            structure_probs = None
+            loc_preds = None
+            elem_onehots = None
+            outputs = None
+            alpha = None
+            max_elem_length = paddle.to_tensor(self.max_elem_length)
+            i = 0
+            while i < max_elem_length+1:
+                elem_onehots = self._char_to_onehot(
+                    temp_elem, onehot_dim=self.elem_num)
+                (outputs, hidden), alpha = self.structure_attention_cell(
+                    hidden, fea, elem_onehots)
+                output_hiddens.append(paddle.unsqueeze(outputs, axis=1))
+                structure_probs_step = self.structure_generator(outputs)
+                temp_elem = structure_probs_step.argmax(axis=1, dtype="int32")
+                i += 1
+                
+            output = paddle.concat(output_hiddens, axis=1)
+            structure_probs = self.structure_generator(output)
+            structure_probs = F.softmax(structure_probs)
+            if self.loc_type == 1:
+                loc_preds = self.loc_generator(output)
+                loc_preds = F.sigmoid(loc_preds)
+            else:
+                loc_fea = fea.transpose([0, 2, 1])
+                loc_fea = self.loc_fea_trans(loc_fea)
+                loc_fea = loc_fea.transpose([0, 2, 1])
+                loc_concat = paddle.concat([output, loc_fea], axis=2)
+                loc_preds = self.loc_generator(loc_concat)
+                loc_preds = F.sigmoid(loc_preds)
+        return {'structure_probs':structure_probs, 'loc_preds':loc_preds}
+
+    
+class AttentionGRUCell(nn.Layer):
+    def __init__(self, input_size, hidden_size, num_embeddings, use_gru=False):
+        super(AttentionGRUCell, self).__init__()
+        self.i2h = nn.Linear(input_size, hidden_size, bias_attr=False)
+        self.h2h = nn.Linear(hidden_size, hidden_size)
+        self.score = nn.Linear(hidden_size, 1, bias_attr=False)
+        self.rnn = nn.GRUCell(
+            input_size=input_size + num_embeddings, hidden_size=hidden_size)
+        self.hidden_size = hidden_size
+
+    def forward(self, prev_hidden, batch_H, char_onehots):
+        batch_H_proj = self.i2h(batch_H)
+        prev_hidden_proj = paddle.unsqueeze(self.h2h(prev_hidden), axis=1)
+        res = paddle.add(batch_H_proj, prev_hidden_proj)
+        res = paddle.tanh(res)
+        e = self.score(res)
+        alpha = F.softmax(e, axis=1)
+        alpha = paddle.transpose(alpha, [0, 2, 1])
+        context = paddle.squeeze(paddle.mm(alpha, batch_H), axis=1)
+        concat_context = paddle.concat([context, char_onehots], 1)
+        cur_hidden = self.rnn(concat_context, prev_hidden)
+        return cur_hidden, alpha
+
+
+class AttentionLSTM(nn.Layer):
+    def __init__(self, in_channels, out_channels, hidden_size, **kwargs):
+        super(AttentionLSTM, self).__init__()
+        self.input_size = in_channels
+        self.hidden_size = hidden_size
+        self.num_classes = out_channels
+
+        self.attention_cell = AttentionLSTMCell(
+            in_channels, hidden_size, out_channels, use_gru=False)
+        self.generator = nn.Linear(hidden_size, out_channels)
+
+    def _char_to_onehot(self, input_char, onehot_dim):
+        input_ont_hot = F.one_hot(input_char, onehot_dim)
+        return input_ont_hot
+
+    def forward(self, inputs, targets=None, batch_max_length=25):
+        batch_size = inputs.shape[0]
+        num_steps = batch_max_length
+
+        hidden = (paddle.zeros((batch_size, self.hidden_size)), paddle.zeros(
+            (batch_size, self.hidden_size)))
+        output_hiddens = []
+
+        if targets is not None:
+            for i in range(num_steps):
+                # one-hot vectors for a i-th char
+                char_onehots = self._char_to_onehot(
+                    targets[:, i], onehot_dim=self.num_classes)
+                hidden, alpha = self.attention_cell(hidden, inputs,
+                                                    char_onehots)
+
+                hidden = (hidden[1][0], hidden[1][1])
+                output_hiddens.append(paddle.unsqueeze(hidden[0], axis=1))
+            output = paddle.concat(output_hiddens, axis=1)
+            probs = self.generator(output)
+
+        else:
+            targets = paddle.zeros(shape=[batch_size], dtype="int32")
+            probs = None
+
+            for i in range(num_steps):
+                char_onehots = self._char_to_onehot(
+                    targets, onehot_dim=self.num_classes)
+                hidden, alpha = self.attention_cell(hidden, inputs,
+                                                    char_onehots)
+                probs_step = self.generator(hidden[0])
+                hidden = (hidden[1][0], hidden[1][1])
+                if probs is None:
+                    probs = paddle.unsqueeze(probs_step, axis=1)
+                else:
+                    probs = paddle.concat(
+                        [probs, paddle.unsqueeze(
+                            probs_step, axis=1)], axis=1)
+
+                next_input = probs_step.argmax(axis=1)
+
+                targets = next_input
+
+        return probs
+
+
+class AttentionLSTMCell(nn.Layer):
+    def __init__(self, input_size, hidden_size, num_embeddings, use_gru=False):
+        super(AttentionLSTMCell, self).__init__()
+        self.i2h = nn.Linear(input_size, hidden_size, bias_attr=False)
+        self.h2h = nn.Linear(hidden_size, hidden_size)
+        self.score = nn.Linear(hidden_size, 1, bias_attr=False)
+        if not use_gru:
+            self.rnn = nn.LSTMCell(
+                input_size=input_size + num_embeddings, hidden_size=hidden_size)
+        else:
+            self.rnn = nn.GRUCell(
+                input_size=input_size + num_embeddings, hidden_size=hidden_size)
+
+        self.hidden_size = hidden_size
+
+    def forward(self, prev_hidden, batch_H, char_onehots):
+        batch_H_proj = self.i2h(batch_H)
+        prev_hidden_proj = paddle.unsqueeze(self.h2h(prev_hidden[0]), axis=1)
+        res = paddle.add(batch_H_proj, prev_hidden_proj)
+        res = paddle.tanh(res)
+        e = self.score(res)
+
+        alpha = F.softmax(e, axis=1)
+        alpha = paddle.transpose(alpha, [0, 2, 1])
+        context = paddle.squeeze(paddle.mm(alpha, batch_H), axis=1)
+        concat_context = paddle.concat([context, char_onehots], 1)
+        cur_hidden = self.rnn(concat_context, prev_hidden)
+
+        return cur_hidden, alpha

ppocr/modeling/necks/__init__.py

@@ -21,7 +21,8 @@ def build_neck(config):
     from .sast_fpn import SASTFPN
     from .rnn import SequenceEncoder
     from .pg_fpn import PGFPN
-    support_dict = ['DBFPN', 'EASTFPN', 'SASTFPN', 'SequenceEncoder', 'PGFPN']
+    from .table_fpn import TableFPN
+    support_dict = ['DBFPN', 'EASTFPN', 'SASTFPN', 'SequenceEncoder', 'PGFPN', 'TableFPN']
 
     module_name = config.pop('name')
     assert module_name in support_dict, Exception('neck only support {}'.format(

ppocr/modeling/necks/db_fpn.py

@@ -32,61 +32,53 @@ class DBFPN(nn.Layer):
             in_channels=in_channels[0],
             out_channels=self.out_channels,
             kernel_size=1,
-            weight_attr=ParamAttr(
-                name='conv2d_51.w_0', initializer=weight_attr),
+            weight_attr=ParamAttr(initializer=weight_attr),
             bias_attr=False)
         self.in3_conv = nn.Conv2D(
             in_channels=in_channels[1],
             out_channels=self.out_channels,
             kernel_size=1,
-            weight_attr=ParamAttr(
-                name='conv2d_50.w_0', initializer=weight_attr),
+            weight_attr=ParamAttr(initializer=weight_attr),
             bias_attr=False)
         self.in4_conv = nn.Conv2D(
             in_channels=in_channels[2],
             out_channels=self.out_channels,
             kernel_size=1,
-            weight_attr=ParamAttr(
-                name='conv2d_49.w_0', initializer=weight_attr),
+            weight_attr=ParamAttr(initializer=weight_attr),
             bias_attr=False)
         self.in5_conv = nn.Conv2D(
             in_channels=in_channels[3],
             out_channels=self.out_channels,
             kernel_size=1,
-            weight_attr=ParamAttr(
-                name='conv2d_48.w_0', initializer=weight_attr),
+            weight_attr=ParamAttr(initializer=weight_attr),
             bias_attr=False)
         self.p5_conv = nn.Conv2D(
             in_channels=self.out_channels,
             out_channels=self.out_channels // 4,
             kernel_size=3,
             padding=1,
-            weight_attr=ParamAttr(
-                name='conv2d_52.w_0', initializer=weight_attr),
+            weight_attr=ParamAttr(initializer=weight_attr),
             bias_attr=False)
         self.p4_conv = nn.Conv2D(
             in_channels=self.out_channels,
             out_channels=self.out_channels // 4,
             kernel_size=3,
             padding=1,
-            weight_attr=ParamAttr(
-                name='conv2d_53.w_0', initializer=weight_attr),
+            weight_attr=ParamAttr(initializer=weight_attr),
             bias_attr=False)
         self.p3_conv = nn.Conv2D(
             in_channels=self.out_channels,
             out_channels=self.out_channels // 4,
             kernel_size=3,
             padding=1,
-            weight_attr=ParamAttr(
-                name='conv2d_54.w_0', initializer=weight_attr),
+            weight_attr=ParamAttr(initializer=weight_attr),
             bias_attr=False)
         self.p2_conv = nn.Conv2D(
             in_channels=self.out_channels,
             out_channels=self.out_channels // 4,
             kernel_size=3,
             padding=1,
-            weight_attr=ParamAttr(
-                name='conv2d_55.w_0', initializer=weight_attr),
+            weight_attr=ParamAttr(initializer=weight_attr),
             bias_attr=False)
 
     def forward(self, x):

ppocr/modeling/necks/table_fpn.py

+# copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import paddle
+from paddle import nn
+import paddle.nn.functional as F
+from paddle import ParamAttr
+
+
+class TableFPN(nn.Layer):
+    def __init__(self, in_channels, out_channels, **kwargs):
+        super(TableFPN, self).__init__()
+        self.out_channels = 512
+        weight_attr = paddle.nn.initializer.KaimingUniform()
+        self.in2_conv = nn.Conv2D(
+            in_channels=in_channels[0],
+            out_channels=self.out_channels,
+            kernel_size=1,
+            weight_attr=ParamAttr(initializer=weight_attr),
+            bias_attr=False)
+        self.in3_conv = nn.Conv2D(
+            in_channels=in_channels[1],
+            out_channels=self.out_channels,
+            kernel_size=1,
+            stride = 1,
+            weight_attr=ParamAttr(initializer=weight_attr),
+            bias_attr=False)
+        self.in4_conv = nn.Conv2D(
+            in_channels=in_channels[2],
+            out_channels=self.out_channels,
+            kernel_size=1,
+            weight_attr=ParamAttr(initializer=weight_attr),
+            bias_attr=False)
+        self.in5_conv = nn.Conv2D(
+            in_channels=in_channels[3],
+            out_channels=self.out_channels,
+            kernel_size=1,
+            weight_attr=ParamAttr(initializer=weight_attr),
+            bias_attr=False)
+        self.p5_conv = nn.Conv2D(
+            in_channels=self.out_channels,
+            out_channels=self.out_channels // 4,
+            kernel_size=3,
+            padding=1,
+            weight_attr=ParamAttr(initializer=weight_attr),
+            bias_attr=False)
+        self.p4_conv = nn.Conv2D(
+            in_channels=self.out_channels,
+            out_channels=self.out_channels // 4,
+            kernel_size=3,
+            padding=1,
+            weight_attr=ParamAttr(initializer=weight_attr),
+            bias_attr=False)
+        self.p3_conv = nn.Conv2D(
+            in_channels=self.out_channels,
+            out_channels=self.out_channels // 4,
+            kernel_size=3,
+            padding=1,
+            weight_attr=ParamAttr(initializer=weight_attr),
+            bias_attr=False)
+        self.p2_conv = nn.Conv2D(
+            in_channels=self.out_channels,
+            out_channels=self.out_channels // 4,
+            kernel_size=3,
+            padding=1,
+            weight_attr=ParamAttr(initializer=weight_attr),
+            bias_attr=False)
+        self.fuse_conv = nn.Conv2D(
+            in_channels=self.out_channels * 4,
+            out_channels=512,
+            kernel_size=3,
+            padding=1,
+            weight_attr=ParamAttr(initializer=weight_attr), bias_attr=False)
+
+    def forward(self, x):
+        c2, c3, c4, c5 = x
+
+        in5 = self.in5_conv(c5)
+        in4 = self.in4_conv(c4)
+        in3 = self.in3_conv(c3)
+        in2 = self.in2_conv(c2)
+
+        out4 = in4 + F.upsample(
+            in5, size=in4.shape[2:4], mode="nearest", align_mode=1)  # 1/16
+        out3 = in3 + F.upsample(
+            out4, size=in3.shape[2:4], mode="nearest", align_mode=1)  # 1/8
+        out2 = in2 + F.upsample(
+            out3, size=in2.shape[2:4], mode="nearest", align_mode=1)  # 1/4
+
+        p4 = F.upsample(out4, size=in5.shape[2:4], mode="nearest", align_mode=1)
+        p3 = F.upsample(out3, size=in5.shape[2:4], mode="nearest", align_mode=1)
+        p2 = F.upsample(out2, size=in5.shape[2:4], mode="nearest", align_mode=1)
+        fuse = paddle.concat([in5, p4, p3, p2], axis=1)
+        fuse_conv = self.fuse_conv(fuse) * 0.005
+        return [c5 + fuse_conv]

ppocr/postprocess/__init__.py

@@ -21,18 +21,20 @@ import copy
 
 __all__ = ['build_post_process']
 
+from .db_postprocess import DBPostProcess
+from .east_postprocess import EASTPostProcess
+from .sast_postprocess import SASTPostProcess
+from .rec_postprocess import CTCLabelDecode, AttnLabelDecode, SRNLabelDecode, DistillationCTCLabelDecode, \
+    TableLabelDecode
+from .cls_postprocess import ClsPostProcess
+from .pg_postprocess import PGPostProcess
 
-def build_post_process(config, global_config=None):
-    from .db_postprocess import DBPostProcess
-    from .east_postprocess import EASTPostProcess
-    from .sast_postprocess import SASTPostProcess
-    from .rec_postprocess import CTCLabelDecode, AttnLabelDecode, SRNLabelDecode
-    from .cls_postprocess import ClsPostProcess
-    from .pg_postprocess import PGPostProcess
 
+def build_post_process(config, global_config=None):
     support_dict = [
         'DBPostProcess', 'EASTPostProcess', 'SASTPostProcess', 'CTCLabelDecode',
-        'AttnLabelDecode', 'ClsPostProcess', 'SRNLabelDecode', 'PGPostProcess'
+        'AttnLabelDecode', 'ClsPostProcess', 'SRNLabelDecode', 'PGPostProcess',
+        'DistillationCTCLabelDecode', 'TableLabelDecode'
     ]
 
     config = copy.deepcopy(config)

ppocr/postprocess/rec_postprocess.py

@@ -125,6 +125,37 @@ class CTCLabelDecode(BaseRecLabelDecode):
         return dict_character
 
 
+class DistillationCTCLabelDecode(CTCLabelDecode):
+    """
+    Convert 
+    Convert between text-label and text-index
+    """
+
+    def __init__(self,
+                 character_dict_path=None,
+                 character_type='ch',
+                 use_space_char=False,
+                 model_name=["student"],
+                 key=None,
+                 **kwargs):
+        super(DistillationCTCLabelDecode, self).__init__(
+            character_dict_path, character_type, use_space_char)
+        if not isinstance(model_name, list):
+            model_name = [model_name]
+        self.model_name = model_name
+
+        self.key = key
+
+    def __call__(self, preds, label=None, *args, **kwargs):
+        output = dict()
+        for name in self.model_name:
+            pred = preds[name]
+            if self.key is not None:
+                pred = pred[self.key]
+            output[name] = super().__call__(pred, label=label, *args, **kwargs)
+        return output
+
+
 class AttnLabelDecode(BaseRecLabelDecode):
     """ Convert between text-label and text-index """
 
@@ -294,14 +325,8 @@ class TableLabelDecode(object):
     """  """
 
     def __init__(self,
-                 max_text_length,
-                 max_elem_length,
-                 max_cell_num,
                  character_dict_path,
                  **kwargs):
-        self.max_text_length = max_text_length
-        self.max_elem_length = max_elem_length
-        self.max_cell_num = max_cell_num
         list_character, list_elem = self.load_char_elem_dict(character_dict_path)
         list_character = self.add_special_char(list_character)
         list_elem = self.add_special_char(list_elem)
@@ -338,18 +363,6 @@ class TableLabelDecode(object):
         list_character = [self.beg_str] + list_character + [self.end_str]
         return list_character
 
-    def get_sp_tokens(self):
-        char_beg_idx = self.get_beg_end_flag_idx('beg', 'char')
-        char_end_idx = self.get_beg_end_flag_idx('end', 'char')
-        elem_beg_idx = self.get_beg_end_flag_idx('beg', 'elem')
-        elem_end_idx = self.get_beg_end_flag_idx('end', 'elem')
-        elem_char_idx1 = self.dict_elem['<td>']
-        elem_char_idx2 = self.dict_elem['<td']
-        sp_tokens = np.array([char_beg_idx, char_end_idx, elem_beg_idx,
-                              elem_end_idx, elem_char_idx1, elem_char_idx2, self.max_text_length,
-                              self.max_elem_length, self.max_cell_num])
-        return sp_tokens
-
     def __call__(self, preds):
         structure_probs = preds['structure_probs']
         loc_preds = preds['loc_preds']

ppocr/utils/logging.py

@@ -22,7 +22,7 @@ logger_initialized = {}
 
 
 @functools.lru_cache()
-def get_logger(name='root', log_file=None, log_level=logging.INFO):
+def get_logger(name='root', log_file=None, log_level=logging.DEBUG):
     """Initialize and get a logger by name.
     If the logger has not been initialized, this method will initialize the
     logger by adding one or two handlers, otherwise the initialized logger will

ppocr/utils/save_load.py

@@ -23,6 +23,8 @@ import six
 
 import paddle
 
+from ppocr.utils.logging import get_logger
+
 __all__ = ['init_model', 'save_model', 'load_dygraph_pretrain']
 
 
@@ -42,44 +44,11 @@ def _mkdir_if_not_exist(path, logger):
                 raise OSError('Failed to mkdir {}'.format(path))
 
 
-def load_dygraph_pretrain(model, logger, path=None, load_static_weights=False):
-    if not (os.path.isdir(path) or os.path.exists(path + '.pdparams')):
-        raise ValueError("Model pretrain path {} does not "
-                         "exists.".format(path))
-    if load_static_weights:
-        pre_state_dict = paddle.static.load_program_state(path)
-        param_state_dict = {}
-        model_dict = model.state_dict()
-        for key in model_dict.keys():
-            weight_name = model_dict[key].name
-            weight_name = weight_name.replace('binarize', '').replace(
-                'thresh', '')  # for DB
-            if weight_name in pre_state_dict.keys():
-                # logger.info('Load weight: {}, shape: {}'.format(
-                #     weight_name, pre_state_dict[weight_name].shape))
-                if 'encoder_rnn' in key:
-                    # delete axis which is 1
-                    pre_state_dict[weight_name] = pre_state_dict[
-                        weight_name].squeeze()
-                    # change axis
-                    if len(pre_state_dict[weight_name].shape) > 1:
-                        pre_state_dict[weight_name] = pre_state_dict[
-                            weight_name].transpose((1, 0))
-                param_state_dict[key] = pre_state_dict[weight_name]
-            else:
-                param_state_dict[key] = model_dict[key]
-        model.set_state_dict(param_state_dict)
-        return
-
-    param_state_dict = paddle.load(path + '.pdparams')
-    model.set_state_dict(param_state_dict)
-    return
-
-
-def init_model(config, model, logger, optimizer=None, lr_scheduler=None):
+def init_model(config, model, optimizer=None, lr_scheduler=None):
     """
     load model from checkpoint or pretrained_model
     """
+    logger = get_logger()
     global_config = config['Global']
     checkpoints = global_config.get('checkpoints')
     pretrained_model = global_config.get('pretrained_model')
@@ -102,18 +71,17 @@ def init_model(config, model, logger, optimizer=None, lr_scheduler=None):
             best_model_dict = states_dict.get('best_model_dict', {})
             if 'epoch' in states_dict:
                 best_model_dict['start_epoch'] = states_dict['epoch'] + 1
-
         logger.info("resume from {}".format(checkpoints))
     elif pretrained_model:
-        load_static_weights = global_config.get('load_static_weights', False)
         if not isinstance(pretrained_model, list):
             pretrained_model = [pretrained_model]
-        if not isinstance(load_static_weights, list):
-            load_static_weights = [load_static_weights] * len(pretrained_model)
-        for idx, pretrained in enumerate(pretrained_model):
-            load_static = load_static_weights[idx]
-            load_dygraph_pretrain(
-                model, logger, path=pretrained, load_static_weights=load_static)
+        for pretrained in pretrained_model:
+            if not (os.path.isdir(pretrained) or
+                    os.path.exists(pretrained + '.pdparams')):
+                raise ValueError("Model pretrain path {} does not "
+                                 "exists.".format(pretrained))
+            param_state_dict = paddle.load(pretrained + '.pdparams')
+            model.set_state_dict(param_state_dict)
             logger.info("load pretrained model from {}".format(
                 pretrained_model))
     else:

ppstructure/README_ch.md

-# TableStructurer
-
-1. 代码使用
-```python
-import cv2
-from paddlestructure import PaddleStructure,draw_result
-
-table_engine = PaddleStructure(
-    output='./output/table',
-    show_log=True)
-
-img_path = '../doc/table/1.png'
-img = cv2.imread(img_path)
-result = table_engine(img)
-for line in result:
-    print(line)
-
-from PIL import Image
-
-font_path = 'path/tp/PaddleOCR/doc/fonts/simfang.ttf'
-image = Image.open(img_path).convert('RGB')
-im_show = draw_result(image, result,font_path=font_path)
-im_show = Image.fromarray(im_show)
-im_show.save('result.jpg')
-```
-
-2. 命令行使用
-```bash
-paddlestructure --image_dir=../doc/table/1.png
-```

ppstructure/table/README_ch.md

-# 表格结构和内容预测
-
-先cd到PaddleOCR/ppstructure目录下
-
-预测
-```python
-python3 table/predict_table.py --det_model_dir=../inference/db --rec_model_dir=../inference/rec_mv3_large1.0/infer --table_model_dir=../inference/explite3/infer --image_dir=../table/imgs/PMC3006023_004_00.png --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --table_output ../output/table
-```
-运行完成后，每张图片的excel表格会保存到table_output字段指定的目录下
-
-评估
-
-```python
-python3 table/eval_table.py --det_model_dir=../inference/db --rec_model_dir=../inference/rec_mv3_large1.0/infer --table_model_dir=../inference/explite3/infer --image_dir=../table/imgs --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --gt_path=path/to/gt.json
-```

test1/api.md

+# PaddleStructure
+
+install layoutparser
+```sh
+wget  https://paddleocr.bj.bcebos.com/whl/layoutparser-0.0.0-py3-none-any.whl
+pip3 install layoutparser-0.0.0-py3-none-any.whl
+```
+
+## 1. Introduction to pipeline
+
+PaddleStructure is a toolkit for complex layout text OCR, the process is as follows
+
+![pipeline](../doc/table/pipeline.png)
+
+In PaddleStructure, the image will be analyzed by layoutparser first. In the layout analysis, the area in the image will be classified, and the OCR process will be carried out according to the category.
+
+Currently layoutparser will output five categories:
+1. Text
+2. Title
+3. Figure
+4. List
+5. Table
+   
+Types 1-4 follow the traditional OCR process, and 5 follow the Table OCR process.
+
+## 2. LayoutParser
+
+
+## 3. Table OCR
+
+[doc](table/README.md)
+
+## 4. Predictive by inference engine
+
+Use the following commands to complete the inference
+```python
+python3 table/predict_system.py --det_model_dir=path/to/det_model_dir --rec_model_dir=path/to/rec_model_dir --table_model_dir=path/to/table_model_dir --image_dir=../doc/table/1.png --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --output ../output/table
+```
+After running, each image will have a directory with the same name under the directory specified in the output field. Each table in the picture will be stored as an excel, and the excel file name will be the coordinates of the table in the image.
+
+## 5. PaddleStructure whl package introduction
+
+### 5.1 Use
+
+5.1.1 Use by code
+```python
+import os
+import cv2
+from paddlestructure import PaddleStructure,draw_result,save_res
+
+table_engine = PaddleStructure(show_log=True)
+
+save_folder = './output/table'
+img_path = '../doc/table/1.png'
+img = cv2.imread(img_path)
+result = table_engine(img)
+save_res(result, save_folder,os.path.basename(img_path).split('.')[0])
+
+for line in result:
+    print(line)
+
+from PIL import Image
+
+font_path = 'path/tp/PaddleOCR/doc/fonts/simfang.ttf'
+image = Image.open(img_path).convert('RGB')
+im_show = draw_result(image, result,font_path=font_path)
+im_show = Image.fromarray(im_show)
+im_show.save('result.jpg')
+```
+
+5.1.2 Use by command line
+```bash
+paddlestructure --image_dir=../doc/table/1.png
+```
+
+### Parameter Description
+Most of the parameters are consistent with the paddleocr whl package, see [whl package documentation](../doc/doc_ch/whl.md)
+
+| Parameter                    | Description                                            | Default           |
+|------------------------|------------------------------------------------------|------------------|
+| output                 | The path where excel and recognition results are saved                    | ./output/table            |
+| structure_max_len      |  When the table structure model predicts, the long side of the image is resized             |  488            |
+| structure_model_dir      |  Table structure inference model path             |  None            |
+| structure_char_type      | Dictionary path used by table structure model             |  ../ppocr/utils/dict/table_structure_dict.tx            |
+
+

test1/api_ch.md

+# PaddleStructure
+
+安装layoutparser
+```sh
+wget  https://paddleocr.bj.bcebos.com/whl/layoutparser-0.0.0-py3-none-any.whl
+pip3 install layoutparser-0.0.0-py3-none-any.whl
+```
+
+## 1. pipeline介绍
+
+PaddleStructure 是一个用于复杂板式文字OCR的工具包，流程如下
+![pipeline](../doc/table/pipeline.png)
+
+在PaddleStructure中，图片会先经由layoutparser进行版面分析，在版面分析中，会对图片里的区域进行分类，根据根据类别进行对于的ocr流程。
+
+目前layoutparser会输出五个类别:
+1. Text
+2. Title
+3. Figure
+4. List
+5. Table
+   
+1-4类走传统的OCR流程，5走表格的OCR流程。
+
+## 2. LayoutParser
+
+[文档](layout/README.md)
+
+## 3. Table OCR
+
+[文档](table/README_ch.md)
+
+## 4. 预测引擎推理
+
+使用如下命令即可完成预测引擎的推理
+```python
+python3 table/predict_system.py --det_model_dir=path/to/det_model_dir --rec_model_dir=path/to/rec_model_dir --table_model_dir=path/to/table_model_dir --image_dir=../doc/table/1.png --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --output ../output/table
+```
+运行完成后，每张图片会output字段指定的目录下有一个同名目录，图片里的每个表格会存储为一个excel，excel文件名为表格在图片里的坐标。
+
+## 5. PaddleStructure whl包介绍
+
+### 5.1 使用
+
+5.1.1 代码使用
+```python
+import os
+import cv2
+from paddlestructure import PaddleStructure,draw_result,save_res
+
+table_engine = PaddleStructure(show_log=True)
+
+save_folder = './output/table'
+img_path = '../doc/table/1.png'
+img = cv2.imread(img_path)
+result = table_engine(img)
+save_res(result, save_folder,os.path.basename(img_path).split('.')[0])
+
+for line in result:
+    print(line)
+
+from PIL import Image
+
+font_path = 'path/tp/PaddleOCR/doc/fonts/simfang.ttf'
+image = Image.open(img_path).convert('RGB')
+im_show = draw_result(image, result,font_path=font_path)
+im_show = Image.fromarray(im_show)
+im_show.save('result.jpg')
+```
+
+5.1.2 命令行使用
+```bash
+paddlestructure --image_dir=../doc/table/1.png
+```
+
+### 参数说明
+大部分参数和paddleocr whl包保持一致，见 [whl包文档](../doc/doc_ch/whl.md)
+
+| 字段                    | 说明                                            | 默认值           |
+|------------------------|------------------------------------------------------|------------------|
+| output                 | excel和识别结果保存的地址                    | ./output/table            |
+| table_max_len      |  表格结构模型预测时，图像的长边resize尺度             |  488            |
+| table_model_dir      |  表格结构模型 inference 模型地址             |  None            |
+| table_char_type      |  表格结构模型所用字典地址             |  ../ppocr/utils/dict/table_structure_dict.tx            |
+
+

test1/layout/README.md

+# 版面分析使用说明
+
+* [1. 安装whl包](#安装whl包)
+* [2. 使用](#使用)
+* [3. 后处理](#后处理)
+* [4. 指标](#指标)
+* [5. 训练版面分析模型](#训练版面分析模型)
+
+<a name="安装whl包"></a>
+
+## 1.  安装whl包
+```bash
+wget https://paddleocr.bj.bcebos.com/whl/layoutparser-0.0.0-py3-none-any.whl
+pip install -U layoutparser-0.0.0-py3-none-any.whl
+```
+
+<a name="使用"></a>
+
+## 2. 使用
+
+使用layoutparser识别给定文档的布局：
+
+```python
+import layoutparser as lp
+image = cv2.imread("imags/paper-image.jpg")
+image = image[..., ::-1]
+
+# 加载模型
+model = lp.PaddleDetectionLayoutModel(config_path="lp://PubLayNet/ppyolov2_r50vd_dcn_365e_publaynet/config", 
+                                threshold=0.5,
+                                label_map={0: "Text", 1: "Title", 2: "List", 3:"Table", 4:"Figure"},
+                                enforce_cpu=False, 
+                                enable_mkldnn=True)
+# 检测
+layout = model.detect(image)
+
+# 显示结果
+lp.draw_box(image, layout, box_width=3, show_element_type=True)
+```
+
+下图展示了结果，不同颜色的检测框表示不同的类别，并通过`show_element_type`在框的左上角显示具体类别：
+
+<div align="center">
+<img src="../../doc/table/result_all.jpg"  width = "600" />
+</div>
+
+`PaddleDetectionLayoutModel`函数参数说明如下:
+
+|      参数      |            含义             |   默认值    |                             备注                             |
+| :------------: | :-------------------------: | :---------: | :----------------------------------------------------------: |
+|  config_path   |        模型配置路径         |    None     | 指定config_path会自动下载模型(仅第一次，之后模型存在，不会再下载) |
+|   model_path   |          模型路径           |    None     | 本地模型路径，config_path和model_path必须设置一个，不能同时为None |
+|   threshold    |       预测得分的阈值        |     0.5     |                              \                               |
+|  input_shape   |     reshape之后图片尺寸     | [3,640,640] |                              \                               |
+|   batch_size   |       测试batch size        |      1      |                              \                               |
+|   label_map    |         类别映射表          |    None     | 设置config_path时，可以为None，根据数据集名称自动获取label_map |
+|  enforce_cpu   |     代码是否使用CPU运行     |    False    |         设置为False表示使用GPU，True表示强制使用CPU          |
+| enforce_mkldnn | CPU预测中是否开启MKLDNN加速 |    True     |                              \                               |
+|   thread_num   |        设置CPU线程数        |     10      |                              \                               |
+
+目前支持以下几种模型配置和label map，您可以通过修改 `--config_path`和 `--label_map`使用这些模型，从而检测不同类型的内容：
+
+| dataset                                                      | config_path                                                  | label_map                                                 |
+| ------------------------------------------------------------ | ------------------------------------------------------------ | --------------------------------------------------------- |
+| [TableBank](https://doc-analysis.github.io/tablebank-page/index.html) word | lp://TableBank/ppyolov2_r50vd_dcn_365e_tableBank_word/config | {0:"Table"}                                               |
+| TableBank latex                                              | lp://TableBank/ppyolov2_r50vd_dcn_365e_tableBank_latex/config | {0:"Table"}                                               |
+| [PubLayNet](https://github.com/ibm-aur-nlp/PubLayNet)        | lp://PubLayNet/ppyolov2_r50vd_dcn_365e_publaynet/config      | {0: "Text", 1: "Title", 2: "List", 3:"Table", 4:"Figure"} |
+
+* TableBank word和TableBank latex分别在word文档、latex文档数据集训练；
+* 下载TableBank数据集同时包含word和latex。
+
+<a name="后处理"></a>
+
+## 3. 后处理
+
+版面分析检测包含多个类别，如果只想获取指定类别(如"Text"类别)的检测框、可以使用下述代码：
+
+```python
+# 首先过滤特定文本类型的区域
+text_blocks = lp.Layout([b for b in layout if b.type=='Text'])
+figure_blocks = lp.Layout([b for b in layout if b.type=='Figure'])
+
+# 因为在图像区域内可能检测到文本区域，所以只需要删除它们
+text_blocks = lp.Layout([b for b in text_blocks \
+                   if not any(b.is_in(b_fig) for b_fig in figure_blocks)])
+
+# 对文本区域排序并分配id 
+h, w = image.shape[:2]
+
+left_interval = lp.Interval(0, w/2*1.05, axis='x').put_on_canvas(image)
+
+left_blocks = text_blocks.filter_by(left_interval, center=True)
+left_blocks.sort(key = lambda b:b.coordinates[1])
+
+right_blocks = [b for b in text_blocks if b not in left_blocks]
+right_blocks.sort(key = lambda b:b.coordinates[1])
+
+# 最终合并两个列表，并按顺序添加索引
+text_blocks = lp.Layout([b.set(id = idx) for idx, b in enumerate(left_blocks + right_blocks)])
+
+# 显示结果
+lp.draw_box(image, text_blocks,
+            box_width=3, 
+            show_element_id=True)
+```
+
+显示只有"Text"类别的结果：
+
+<div align="center">
+<img src="../../doc/table/result_text.jpg"  width = "600" />
+</div>
+
+<a name="指标"></a>
+
+## 4. 指标
+
+| Dataset   | mAP  | CPU time cost | GPU time cost |
+| --------- | ---- | ------------- | ------------- |
+| PubLayNet | 93.6 | 1713.7ms      | 66.6ms        |
+| TableBank | 96.2 | 1968.4ms      | 65.1ms        |
+
+**Envrionment：**	
+
+​	**CPU：**  Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz，24core
+
+​	**GPU：**  a single NVIDIA Tesla P40
+
+<a name="训练版面分析模型"></a>
+
+## 5. 训练版面分析模型
+
+上述模型基于[PaddleDetection](https://github.com/PaddlePaddle/PaddleDetection) 训练，如果您想训练自己的版面分析模型，请参考：[train_layoutparser_model](train_layoutparser_model.md)
+

test1/layout/train_layoutparser_model.md

+# 训练版面分析
+
+* [1. 安装](#安装)
+  * [1.1 环境要求](#环境要求)
+  * [1.2 安装PaddleDetection](#安装PaddleDetection)
+* [2. 准备数据](#准备数据)
+* [3. 配置文件改动和说明](#配置文件改动和说明)
+* [4. PaddleDetection训练](#训练)
+* [5. PaddleDetection预测](#预测)
+* [6. 预测部署](#预测部署)
+  * [6.1 模型导出](#模型导出)
+  * [6.2 layout parser预测](#layout_parser预测)
+
+<a name="安装"></a>
+
+## 1. 安装
+
+<a name="环境要求"></a>
+
+### 1.1 环境要求
+
+- PaddlePaddle 2.1
+- OS 64 bit
+- Python 3(3.5.1+/3.6/3.7/3.8/3.9)，64 bit
+- pip/pip3(9.0.1+), 64 bit
+- CUDA >= 10.1
+- cuDNN >= 7.6
+
+<a name="安装PaddleDetection"></a>
+
+### 1.2 安装PaddleDetection
+
+```bash
+# 克隆PaddleDetection仓库
+cd <path/to/clone/PaddleDetection>
+git clone https://github.com/PaddlePaddle/PaddleDetection.git
+
+cd PaddleDetection
+# 安装其他依赖
+pip install -r requirements.txt
+```
+
+更多安装教程，请参考: [Install doc](https://github.com/PaddlePaddle/PaddleDetection/blob/release/2.1/docs/tutorials/INSTALL_cn.md)
+
+<a name="数据准备"></a>
+
+## 2. 准备数据
+
+下载 [PubLayNet](https://github.com/ibm-aur-nlp/PubLayNet) 数据集：
+
+```bash
+cd PaddleDetection/dataset/
+mkdir publaynet
+# 执行命令，下载
+wget -O publaynet.tar.gz https://dax-cdn.cdn.appdomain.cloud/dax-publaynet/1.0.0/publaynet.tar.gz?_ga=2.104193024.1076900768.1622560733-649911202.1622560733
+# 解压
+tar -xvf publaynet.tar.gz
+```
+
+解压之后PubLayNet目录结构：
+
+| File or Folder | Description                                      | num     |
+| :------------- | :----------------------------------------------- | ------- |
+| `train/`       | Images in the training subset                    | 335,703 |
+| `val/`         | Images in the validation subset                  | 11,245  |
+| `test/`        | Images in the testing subset                     | 11,405  |
+| `train.json`   | Annotations for training images                  |         |
+| `val.json`     | Annotations for validation images                |         |
+| `LICENSE.txt`  | Plaintext version of the CDLA-Permissive license |         |
+| `README.txt`   | Text file with the file names and description    |         |
+
+如果使用其它数据集，请参考[准备训练数据](https://github.com/PaddlePaddle/PaddleDetection/blob/release/2.1/docs/tutorials/PrepareDataSet.md)
+
+<a name="配置文件改动和说明"></a>
+
+## 3. 配置文件改动和说明
+
+我们使用 `configs/ppyolo/ppyolov2_r50vd_dcn_365e_coco.yml`配置进行训练，配置文件摘要如下：
+
+<div align='center'>
+  <img src='../../doc/table/PaddleDetection_config.png' width='600px'/>
+</div>
+
+从上图看到 `ppyolov2_r50vd_dcn_365e_coco.yml` 配置需要依赖其他的配置文件，在该例子中需要依赖:
+
+```
+coco_detection.yml：主要说明了训练数据和验证数据的路径
+
+runtime.yml：主要说明了公共的运行参数，比如是否使用GPU、每多少个epoch存储checkpoint等
+
+optimizer_365e.yml：主要说明了学习率和优化器的配置
+
+ppyolov2_r50vd_dcn.yml：主要说明模型和主干网络的情况
+
+ppyolov2_reader.yml：主要说明数据读取器配置，如batch size，并发加载子进程数等，同时包含读取后预处理操作，如resize、数据增强等等
+```
+
+根据实际情况，修改上述文件，比如数据集路径、batch size等。
+
+<a name="训练"></a>
+
+## 4. PaddleDetection训练
+
+PaddleDetection提供了单卡/多卡训练模式，满足用户多种训练需求
+
+* GPU 单卡训练
+
+```bash
+export CUDA_VISIBLE_DEVICES=0 #windows和Mac下不需要执行该命令
+python tools/train.py -c configs/ppyolo/ppyolov2_r50vd_dcn_365e_coco.yml
+```
+
+* GPU多卡训练
+
+```bash
+export CUDA_VISIBLE_DEVICES=0,1,2,3
+python -m paddle.distributed.launch --gpus 0,1,2,3 tools/train.py -c configs/ppyolo/ppyolov2_r50vd_dcn_365e_coco.yml --eval
+```
+
+--eval：表示边训练边验证
+
+* 模型恢复训练
+
+在日常训练过程中，有的用户由于一些原因导致训练中断，用户可以使用-r的命令恢复训练:
+
+```bash
+export CUDA_VISIBLE_DEVICES=0,1,2,3
+python -m paddle.distributed.launch --gpus 0,1,2,3 tools/train.py -c configs/ppyolo/ppyolov2_r50vd_dcn_365e_coco.yml --eval -r output/ppyolov2_r50vd_dcn_365e_coco/10000
+```
+
+注意：如果遇到 "`Out of memory error`" 问题, 尝试在 `ppyolov2_reader.yml` 文件中调小`batch_size`
+
+<a name="预测"></a>
+
+## 5. PaddleDetection预测
+
+设置参数，使用PaddleDetection预测：
+
+```bash
+export CUDA_VISIBLE_DEVICES=0
+python tools/infer.py -c configs/ppyolo/ppyolov2_r50vd_dcn_365e_coco.yml --infer_img=images/paper-image.jpg --output_dir=infer_output/ --draw_threshold=0.5 -o weights=output/ppyolov2_r50vd_dcn_365e_coco/model_final --use_vdl=Ture
+```
+
+`--draw_threshold` 是个可选参数. 根据 [NMS](https://ieeexplore.ieee.org/document/1699659) 的计算，不同阈值会产生不同的结果 `keep_top_k`表示设置输出目标的最大数量，默认值为100，用户可以根据自己的实际情况进行设定。
+
+<a name="预测部署"></a>
+
+## 6. 预测部署
+
+在layout parser中使用自己训练好的模型，
+
+<a name="模型导出"></a>
+
+### 6.1 模型导出
+
+在模型训练过程中保存的模型文件是包含前向预测和反向传播的过程，在实际的工业部署则不需要反向传播，因此需要将模型进行导成部署需要的模型格式。 在PaddleDetection中提供了 `tools/export_model.py`脚本来导出模型。
+
+导出模型名称默认是`model.*`，layout parser代码模型名称是`inference.*`,  所以修改[PaddleDetection/ppdet/engine/trainer.py ](https://github.com/PaddlePaddle/PaddleDetection/blob/b87a1ea86fa18ce69e44a17ad1b49c1326f19ff9/ppdet/engine/trainer.py#L512) (点开链接查看详细代码行)，将`model`改为`inference`即可。
+
+执行导出模型脚本：
+
+```bash
+python tools/export_model.py -c configs/ppyolo/ppyolov2_r50vd_dcn_365e_coco.yml --output_dir=./inference -o weights=output/ppyolov2_r50vd_dcn_365e_coco/model_final.pdparams
+```
+
+预测模型会导出到`inference/ppyolov2_r50vd_dcn_365e_coco`目录下，分别为`infer_cfg.yml`(预测不需要), `inference.pdiparams`, `inference.pdiparams.info`,`inference.pdmodel` 。
+
+更多模型导出教程，请参考：[EXPORT_MODEL](https://github.com/PaddlePaddle/PaddleDetection/blob/release/2.1/deploy/EXPORT_MODEL.md)
+
+<a name="layout parser预测"></a>
+
+### 6.2 layout_parser预测
+
+`model_path`指定训练好的模型路径，使用layout parser进行预测：
+
+```bash
+import layoutparser as lp
+model = lp.PaddleDetectionLayoutModel(model_path="inference/ppyolov2_r50vd_dcn_365e_coco", threshold=0.5,label_map={0: "Text", 1: "Title", 2: "List", 3:"Table", 4:"Figure"},enforce_cpu=True,enable_mkldnn=True)
+```
+
+
+
+***
+
+更多PaddleDetection训练教程，请参考：[PaddleDetection训练](https://github.com/PaddlePaddle/PaddleDetection/blob/release/2.1/docs/tutorials/GETTING_STARTED_cn.md)
+
+***
+

ppstructure/paddlestructure.py → test1/paddlestructure.py

@@ -24,15 +24,15 @@ import numpy as np
 from pathlib import Path
 
 from ppocr.utils.logging import get_logger
-from ppstructure.predict_system import OCRSystem, save_res
-from ppstructure.table.predict_table import to_excel
-from ppstructure.utility import init_args, draw_result
+from test1.predict_system import OCRSystem, save_res
+from test1.table.predict_table import to_excel
+from test1.utility import init_args, draw_result
 
 logger = get_logger()
 from ppocr.utils.utility import check_and_read_gif, get_image_file_list
 from ppocr.utils.network import maybe_download, download_with_progressbar, confirm_model_dir_url, is_link
 
-__all__ = ['PaddleStructure', 'draw_result', 'to_excel']
+__all__ = ['PaddleStructure', 'draw_result', 'save_res']
 
 VERSION = '2.1'
 BASE_DIR = os.path.expanduser("~/.paddlestructure/")
@@ -40,7 +40,7 @@ BASE_DIR = os.path.expanduser("~/.paddlestructure/")
 model_urls = {
     'det': 'https://paddleocr.bj.bcebos.com/dygraph_v2.0/table/en_ppocr_mobile_v2.0_table_det_infer.tar',
     'rec': 'https://paddleocr.bj.bcebos.com/dygraph_v2.0/table/en_ppocr_mobile_v2.0_table_rec_infer.tar',
-    'structure': 'https://paddleocr.bj.bcebos.com/dygraph_v2.0/table/en_ppocr_mobile_v2.0_table_structure_infer.tar'
+    'table': 'https://paddleocr.bj.bcebos.com/dygraph_v2.0/table/en_ppocr_mobile_v2.0_table_structure_infer.tar'
 
 }
 
@@ -51,7 +51,7 @@ def parse_args(mMain=True):
     parser.add_help = mMain
 
     for action in parser._actions:
-        if action.dest in ['rec_char_dict_path', 'structure_char_dict_path']:
+        if action.dest in ['rec_char_dict_path', 'table_char_dict_path']:
             action.default = None
     if mMain:
         return parser.parse_args()
@@ -66,8 +66,8 @@ class PaddleStructure(OCRSystem):
     def __init__(self, **kwargs):
         params = parse_args(mMain=False)
         params.__dict__.update(**kwargs)
-        if params.show_log:
-            logger.setLevel(logging.DEBUG)
+        if not params.show_log:
+            logger.setLevel(logging.INFO)
         params.use_angle_cls = False
         # init model dir
         params.det_model_dir, det_url = confirm_model_dir_url(params.det_model_dir,
@@ -76,13 +76,13 @@ class PaddleStructure(OCRSystem):
         params.rec_model_dir, rec_url = confirm_model_dir_url(params.rec_model_dir,
                                                               os.path.join(BASE_DIR, VERSION, 'rec'),
                                                               model_urls['rec'])
-        params.structure_model_dir, structure_url = confirm_model_dir_url(params.structure_model_dir,
-                                                                          os.path.join(BASE_DIR, VERSION, 'structure'),
-                                                                          model_urls['structure'])
+        params.table_model_dir, table_url = confirm_model_dir_url(params.table_model_dir,
+                                                                          os.path.join(BASE_DIR, VERSION, 'table'),
+                                                                          model_urls['table'])
         # download model
         maybe_download(params.det_model_dir, det_url)
         maybe_download(params.rec_model_dir, rec_url)
-        maybe_download(params.structure_model_dir, structure_url)
+        maybe_download(params.table_model_dir, table_url)
 
         if params.rec_char_dict_path is None:
             params.rec_char_type = 'EN'
@@ -90,12 +90,12 @@ class PaddleStructure(OCRSystem):
                 params.rec_char_dict_path = str(Path(__file__).parent / 'ppocr/utils/dict/table_dict.txt')
             else:
                 params.rec_char_dict_path = str(Path(__file__).parent.parent / 'ppocr/utils/dict/table_dict.txt')
-        if params.structure_char_dict_path is None:
+        if params.table_char_dict_path is None:
             if os.path.exists(str(Path(__file__).parent / 'ppocr/utils/dict/table_structure_dict.txt')):
-                params.structure_char_dict_path = str(
+                params.table_char_dict_path = str(
                     Path(__file__).parent / 'ppocr/utils/dict/table_structure_dict.txt')
             else:
-                params.structure_char_dict_path = str(
+                params.table_char_dict_path = str(
                     Path(__file__).parent.parent / 'ppocr/utils/dict/table_structure_dict.txt')
 
         print(params)
@@ -145,4 +145,24 @@ def main():
         for item in result:
             logger.info(item['res'])
         save_res(result, save_folder, img_name)
-        logger.info('result save to {}'.format(os.path.join(save_folder, img_name)))
\ No newline at end of file
+        logger.info('result save to {}'.format(os.path.join(save_folder, img_name)))
+
+if __name__ == '__main__':
+    table_engine = PaddleStructure(show_log=True)
+
+    img_path = '../test/test_imgs/PMC1173095_006_00.png'
+    img = cv2.imread(img_path)
+    result = table_engine(img)
+    save_res(result, '/Users/zhoujun20/Desktop/工作相关/table/table_pr/PaddleOCR/output/table',
+             os.path.basename(img_path).split('.')[0])
+
+    for line in result:
+        print(line)
+
+    from PIL import Image
+
+    font_path = '../doc/fonts/simfang.ttf'
+    image = Image.open(img_path).convert('RGB')
+    im_show = draw_result(image, result, font_path=font_path)
+    im_show = Image.fromarray(im_show)
+    im_show.save('result.jpg')
\ No newline at end of file

ppstructure/predict_system.py → test1/predict_system.py

@@ -24,14 +24,15 @@ os.environ["FLAGS_allocator_strategy"] = 'auto_growth'
 import cv2
 import numpy as np
 import time
+import logging
 
 import layoutparser as lp
 
 from ppocr.utils.utility import get_image_file_list, check_and_read_gif
 from ppocr.utils.logging import get_logger
 from tools.infer.predict_system import TextSystem
-from ppstructure.table.predict_table import TableSystem, to_excel
-from ppstructure.utility import parse_args,draw_result
+from test1.table.predict_table import TableSystem, to_excel
+from test1.utility import parse_args, draw_result
 
 logger = get_logger()
 
@@ -40,6 +41,8 @@ class OCRSystem(object):
     def __init__(self, args):
         args.det_limit_type = 'resize_long'
         args.drop_score = 0
+        if not args.show_log:
+            logger.setLevel(logging.INFO)
         self.text_system = TextSystem(args)
         self.table_system = TableSystem(args, self.text_system.text_detector, self.text_system.text_recognizer)
         self.table_layout = lp.PaddleDetectionLayoutModel("lp://PubLayNet/ppyolov2_r50vd_dcn_365e_publaynet/config",
@@ -58,8 +61,6 @@ class OCRSystem(object):
             roi_img = ori_im[y1:y2, x1:x2, :]
             if region.type == 'Table':
                 res = self.table_system(roi_img)
-            elif region.type == 'Figure':
-                continue
             else:
                 filter_boxes, filter_rec_res = self.text_system(roi_img)
                 filter_boxes = [x + [x1, y1] for x in filter_boxes]
@@ -69,6 +70,7 @@ class OCRSystem(object):
             res_list.append({'type': region.type, 'bbox': [x1, y1, x2, y2], 'res': res})
         return res_list
 
+
 def save_res(res, save_folder, img_name):
     excel_save_folder = os.path.join(save_folder, img_name)
     os.makedirs(excel_save_folder, exist_ok=True)
@@ -107,7 +109,7 @@ def main(args):
         starttime = time.time()
         res = structure_sys(img)
         save_res(res, save_folder, img_name)
-        draw_img = draw_result(img,res, args.vis_font_path)
+        draw_img = draw_result(img, res, args.vis_font_path)
         cv2.imwrite(os.path.join(save_folder, img_name, 'show.jpg'), draw_img)
         logger.info('result save to {}'.format(os.path.join(save_folder, img_name)))
         elapse = time.time() - starttime

ppstructure/setup.py → test1/setup.py

@@ -25,14 +25,14 @@ with open('../requirements.txt', encoding="utf-8-sig") as f:
 
 
 def readme():
-    with open('README_ch.md', encoding="utf-8-sig") as f:
+    with open('api_ch.md', encoding="utf-8-sig") as f:
         README = f.read()
     return README
 
 
-shutil.copytree('../ppstructure/table', './ppstructure/table')
-shutil.copyfile('../ppstructure/predict_system.py', './ppstructure/predict_system.py')
-shutil.copyfile('../ppstructure/utility.py', './ppstructure/utility.py')
+shutil.copytree('./table', './test1/table')
+shutil.copyfile('./predict_system.py', './test1/predict_system.py')
+shutil.copyfile('./utility.py', './test1/utility.py')
 shutil.copytree('../ppocr', './ppocr')
 shutil.copytree('../tools', './tools')
 shutil.copyfile('../LICENSE', './LICENSE')
@@ -68,5 +68,5 @@ setup(
 
 shutil.rmtree('ppocr')
 shutil.rmtree('tools')
-shutil.rmtree('ppstructure')
+shutil.rmtree('test1')
 os.remove('LICENSE')

test1/table/README.md

+# Table structure and content prediction
+
+## 1. pipeline
+The ocr of the table mainly contains three models
+1. Single line text detection-DB
+2. Single line text recognition-CRNN
+3. Table structure and cell coordinate prediction-RARE
+
+The table ocr flow chart is as follows
+
+![tableocr_pipeline](../../doc/table/tableocr_pipeline.png)
+
+1. The coordinates of single-line text is detected by DB model, and then sends it to the recognition model to get the recognition result.
+2. The table structure and cell coordinates is predicted by RARE model.
+3. The recognition result of the cell is combined by the coordinates, recognition result of the single line and the coordinates of the cell.
+4. The cell recognition result and the table structure together construct the html string of the table.
+
+## 2. How to use
+
+
+### 2.1 Train
+TBD
+
+### 2.2 Eval
+First cd to the PaddleOCR/ppstructure directory
+
+The table uses TEDS (Tree-Edit-Distance-based Similarity) as the evaluation metric of the model. Before the model evaluation, the three models in the pipeline need to be exported as inference models (we have provided them), and the gt for evaluation needs to be prepared. Examples of gt are as follows:
+```json
+{"PMC4289340_004_00.png": [["<html>", "<body>", "<table>", "<thead>", "<tr>", "<td>", "</td>", "<td>", "</td>", "<td>", "</td>", "</tr>", "</thead>", "<tbody>", "<tr>", "<td>", "</td>", "<td>", "</td>", "<td>", "</td>", "</tr>",  "</tbody>", "</table>", "</body>", "</html>"], [[1, 4, 29, 13], [137, 4, 161, 13], [215, 4, 236, 13], [1, 17, 30, 27], [137, 17, 147, 27], [215, 17, 225, 27]], [["<b>", "F", "e", "a", "t", "u", "r", "e", "</b>"], ["<b>", "G", "b", "3", " ", "+", "</b>"], ["<b>", "G", "b", "3", " ", "-", "</b>"], ["<b>", "P", "a", "t", "i", "e", "n", "t", "s", "</b>"], ["6", "2"], ["4", "5"]]]}
+```
+In gt json, the key is the image name, the value is the corresponding gt, and gt is a list composed of four items, and each item is
+1. HTML string list of table structure
+2. The coordinates of each cell (not including the empty text in the cell)
+3. The text information in each cell (not including the empty text in the cell)
+4. The text information in each cell (including the empty text in the cell)
+
+Use the following command to evaluate. After the evaluation is completed, the teds indicator will be output.
+```python
+python3 table/eval_table.py --det_model_dir=path/to/det_model_dir --rec_model_dir=path/to/rec_model_dir --table_model_dir=path/to/table_model_dir --image_dir=../doc/table/1.png --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --gt_path=path/to/gt.json
+```
+
+
+### 2.3 Inference
+First cd to the PaddleOCR/ppstructure directory
+
+```python
+python3 table/predict_table.py --det_model_dir=path/to/det_model_dir --rec_model_dir=path/to/rec_model_dir --table_model_dir=path/to/table_model_dir --image_dir=../doc/table/1.png --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --output ../output/table
+```
+After running, the excel sheet of each picture will be saved in the directory specified by the output field
\ No newline at end of file

test1/table/README_ch.md

+# 表格结构和内容预测
+
+## 1. pipeline
+表格的ocr主要包含三个模型
+1. 单行文本检测-DB
+2. 单行文本识别-CRNN
+3. 表格结构和cell坐标预测-RARE
+
+具体流程图如下
+
+![tableocr_pipeline](../../doc/table/tableocr_pipeline.png)
+
+1. 图片由单行文字检测检测模型到单行文字的坐标，然后送入识别模型拿到识别结果。
+2. 图片由表格结构和cell坐标预测模型拿到表格的结构信息和单元格的坐标信息。
+3. 由单行文字的坐标、识别结果和单元格的坐标一起组合出单元格的识别结果。
+4. 单元格的识别结果和表格结构一起构造表格的html字符串。
+
+## 2. 使用
+
+
+### 2.1 训练
+TBD
+
+### 2.2 评估
+先cd到PaddleOCR/ppstructure目录下
+
+表格使用 TEDS(Tree-Edit-Distance-based Similarity) 作为模型的评估指标。在进行模型评估之前，需要将pipeline中的三个模型分别导出为inference模型(我们已经提供好)，还需要准备评估的gt， gt示例如下:
+```json
+{"PMC4289340_004_00.png": [["<html>", "<body>", "<table>", "<thead>", "<tr>", "<td>", "</td>", "<td>", "</td>", "<td>", "</td>", "</tr>", "</thead>", "<tbody>", "<tr>", "<td>", "</td>", "<td>", "</td>", "<td>", "</td>", "</tr>",  "</tbody>", "</table>", "</body>", "</html>"], [[1, 4, 29, 13], [137, 4, 161, 13], [215, 4, 236, 13], [1, 17, 30, 27], [137, 17, 147, 27], [215, 17, 225, 27]], [["<b>", "F", "e", "a", "t", "u", "r", "e", "</b>"], ["<b>", "G", "b", "3", " ", "+", "</b>"], ["<b>", "G", "b", "3", " ", "-", "</b>"], ["<b>", "P", "a", "t", "i", "e", "n", "t", "s", "</b>"], ["6", "2"], ["4", "5"]]]}
+```
+json 中，key为图片名，value为对于的gt，gt是一个由四个item组成的list，每个item分别为
+1. 表格结构的html字符串list
+2. 每个cell的坐标 (不包括cell里文字为空的)
+3. 每个cell里的文字信息 (不包括cell里文字为空的)
+4. 每个cell里的文字信息 (包括cell里文字为空的)
+
+准备完成后使用如下命令进行评估，评估完成后会输出teds指标。
+```python
+python3 table/eval_table.py --det_model_dir=path/to/det_model_dir --rec_model_dir=path/to/rec_model_dir --table_model_dir=path/to/table_model_dir --image_dir=../doc/table/1.png --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --gt_path=path/to/gt.json
+```
+
+
+### 2.3 预测
+先cd到PaddleOCR/ppstructure目录下
+
+```python
+python3 table/predict_table.py --det_model_dir=path/to/det_model_dir --rec_model_dir=path/to/rec_model_dir --table_model_dir=path/to/table_model_dir --image_dir=../doc/table/1.png --rec_char_dict_path=../ppocr/utils/dict/table_dict.txt --table_char_dict_path=../ppocr/utils/dict/table_structure_dict.txt --rec_char_type=EN --det_limit_side_len=736 --det_limit_type=min --output ../output/table
+```
+运行完成后，每张图片的excel表格会保存到output字段指定的目录下

ppstructure/table/eval_table.py → test1/table/eval_table.py

@@ -20,9 +20,12 @@ sys.path.append(os.path.abspath(os.path.join(__dir__, '../..')))
 import cv2
 import json
 from tqdm import tqdm
-from ppstructure.table.table_metric import TEDS
-from ppstructure.table.predict_table import TableSystem
-from ppstructure.utility import init_args
+from test1.table.table_metric import TEDS
+from test1.table.predict_table import TableSystem
+from test1.utility import init_args
+from ppocr.utils.logging import get_logger
+
+logger = get_logger()
 
 
 def parse_args():
@@ -47,7 +50,7 @@ def main(gt_path, img_root, args):
         gt_html, gt = get_gt_html(gt_structures, contents_with_block)
         gt_htmls.append(gt_html)
     scores = teds.batch_evaluate_html(gt_htmls, pred_htmls)
-    print('teds:', sum(scores) / len(scores))
+    logger.info('teds:', sum(scores) / len(scores))
 
 
 def get_gt_html(gt_structures, contents_with_block):

ppstructure/table/predict_structure.py → test1/table/predict_structure.py

@@ -32,6 +32,7 @@ from ppocr.data import create_operators, transform
 from ppocr.postprocess import build_post_process
 from ppocr.utils.logging import get_logger
 from ppocr.utils.utility import get_image_file_list, check_and_read_gif
+from test1.utility import parse_args
 
 logger = get_logger()
 
@@ -40,7 +41,7 @@ class TableStructurer(object):
     def __init__(self, args):
         pre_process_list = [{
             'ResizeTableImage': {
-                'max_len': args.structure_max_len
+                'max_len': args.table_max_len
             }
         }, {
             'NormalizeImage': {
@@ -60,17 +61,14 @@ class TableStructurer(object):
         }]
         postprocess_params = {
             'name': 'TableLabelDecode',
-            "character_type": args.structure_char_type,
-            "character_dict_path": args.structure_char_dict_path,
-            "max_text_length": args.structure_max_text_length,
-            "max_elem_length": args.structure_max_elem_length,
-            "max_cell_num": args.structure_max_cell_num
+            "character_type": args.table_char_type,
+            "character_dict_path": args.table_char_dict_path,
         }
 
         self.preprocess_op = create_operators(pre_process_list)
         self.postprocess_op = build_post_process(postprocess_params)
-        self.predictor, self.input_tensor, self.output_tensors = \
-            utility.create_predictor(args, 'structure', logger)
+        self.predictor, self.input_tensor, self.output_tensors, self.config = \
+            utility.create_predictor(args, 'table', logger)
 
     def __call__(self, img):
         ori_im = img.copy()
@@ -138,4 +136,4 @@ def main(args):
 
 
 if __name__ == "__main__":
-    main(utility.parse_args())
+    main(parse_args())

ppstructure/table/predict_table.py → test1/table/predict_table.py

@@ -30,9 +30,9 @@ import tools.infer.predict_rec as predict_rec
 import tools.infer.predict_det as predict_det
 from ppocr.utils.utility import get_image_file_list, check_and_read_gif
 from ppocr.utils.logging import get_logger
-from ppstructure.table.matcher import distance, compute_iou
-from ppstructure.utility import parse_args
-import ppstructure.table.predict_structure as predict_strture
+from test1.table.matcher import distance, compute_iou
+from test1.utility import parse_args
+import test1.table.predict_structure as predict_strture
 
 logger = get_logger()
 
@@ -187,7 +187,7 @@ def main(args):
     for i, image_file in enumerate(image_file_list):
         logger.info("[{}/{}] {}".format(i, img_num, image_file))
         img, flag = check_and_read_gif(image_file)
-        excel_path = os.path.join(args.table_output, os.path.basename(image_file).split('.')[0] + '.xlsx')
+        excel_path = os.path.join(args.output, os.path.basename(image_file).split('.')[0] + '.xlsx')
         if not flag:
             img = cv2.imread(image_file)
         if img is None:

ppstructure/utility.py → test1/utility.py

@@ -23,16 +23,11 @@ def init_args():
     # params for output
     parser.add_argument("--output", type=str, default='./output/table')
     # params for table structure
-    parser.add_argument("--structure_max_len", type=int, default=488)
-    parser.add_argument("--structure_max_text_length", type=int, default=100)
-    parser.add_argument("--structure_max_elem_length", type=int, default=800)
-    parser.add_argument("--structure_max_cell_num", type=int, default=500)
-    parser.add_argument("--structure_model_dir", type=str)
-    parser.add_argument("--structure_char_type", type=str, default='en')
-    parser.add_argument("--structure_char_dict_path", type=str, default="../ppocr/utils/dict/table_structure_dict.txt")
-
-    # params for layout detector
-    parser.add_argument("--layout_model_dir", type=str)
+    parser.add_argument("--table_max_len", type=int, default=488)
+    parser.add_argument("--table_model_dir", type=str)
+    parser.add_argument("--table_char_type", type=str, default='en')
+    parser.add_argument("--table_char_dict_path", type=str, default="../ppocr/utils/dict/table_structure_dict.txt")
+
     return parser
 
 

tools/eval.py

@@ -44,12 +44,20 @@ def main():
     # build model
     # for rec algorithm
     if hasattr(post_process_class, 'character'):
-        config['Architecture']["Head"]['out_channels'] = len(
-            getattr(post_process_class, 'character'))
+        char_num = len(getattr(post_process_class, 'character'))
+        if config['Architecture']["algorithm"] in ["Distillation",
+                                                   ]:  # distillation model
+            for key in config['Architecture']["Models"]:
+                config['Architecture']["Models"][key]["Head"][
+                    'out_channels'] = char_num
+        else:  # base rec model
+            config['Architecture']["Head"]['out_channels'] = char_num
+
     model = build_model(config['Architecture'])
     use_srn = config['Architecture']['algorithm'] == "SRN"
+    model_type = config['Architecture']['model_type']
 
-    best_model_dict = init_model(config, model, logger)
+    best_model_dict = init_model(config, model)
     if len(best_model_dict):
         logger.info('metric in ckpt ***************')
         for k, v in best_model_dict.items():
@@ -60,7 +68,7 @@ def main():
 
     # start eval
     metric = program.eval(model, valid_dataloader, post_process_class,
-                          eval_class, use_srn)
+                          eval_class, model_type, use_srn)
     logger.info('metric eval ***************')
     for k, v in metric.items():
         logger.info('{}:{}'.format(k, v))

tools/export_model.py

@@ -17,7 +17,7 @@ import sys
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(__dir__)
-sys.path.append(os.path.abspath(os.path.join(__dir__, '..')))
+sys.path.append(os.path.abspath(os.path.join(__dir__, "..")))
 
 import argparse
 
@@ -31,32 +31,12 @@ from ppocr.utils.logging import get_logger
 from tools.program import load_config, merge_config, ArgsParser
 
 
-def main():
-    FLAGS = ArgsParser().parse_args()
-    config = load_config(FLAGS.config)
-    merge_config(FLAGS.opt)
-    logger = get_logger()
-    # build post process
-
-    post_process_class = build_post_process(config['PostProcess'],
-                                            config['Global'])
-
-    # build model
-    # for rec algorithm
-    if hasattr(post_process_class, 'character'):
-        char_num = len(getattr(post_process_class, 'character'))
-        config['Architecture']["Head"]['out_channels'] = char_num
-    model = build_model(config['Architecture'])
-    init_model(config, model, logger)
-    model.eval()
-
-    save_path = '{}/inference'.format(config['Global']['save_inference_dir'])
-
-    if config['Architecture']['algorithm'] == "SRN":
-        max_text_length = config['Architecture']['Head']['max_text_length']
+def export_single_model(model, arch_config, save_path, logger):
+    if arch_config["algorithm"] == "SRN":
+        max_text_length = arch_config["Head"]["max_text_length"]
         other_shape = [
             paddle.static.InputSpec(
-                shape=[None, 1, 64, 256], dtype='float32'), [
+                shape=[None, 1, 64, 256], dtype="float32"), [
                     paddle.static.InputSpec(
                         shape=[None, 256, 1],
                         dtype="int64"), paddle.static.InputSpec(
@@ -71,24 +51,67 @@ def main():
         model = to_static(model, input_spec=other_shape)
     else:
         infer_shape = [3, -1, -1]
-        if config['Architecture']['model_type'] == "rec":
+        if arch_config["model_type"] == "rec":
             infer_shape = [3, 32, -1]  # for rec model, H must be 32
-            if 'Transform' in config['Architecture'] and config['Architecture'][
-                    'Transform'] is not None and config['Architecture'][
-                        'Transform']['name'] == 'TPS':
+            if "Transform" in arch_config and arch_config[
+                    "Transform"] is not None and arch_config["Transform"][
+                        "name"] == "TPS":
                 logger.info(
-                    'When there is tps in the network, variable length input is not supported, and the input size needs to be the same as during training'
+                    "When there is tps in the network, variable length input is not supported, and the input size needs to be the same as during training"
                 )
                 infer_shape[-1] = 100
+        elif arch_config["model_type"] == "table":
+            infer_shape = [3, 488, 488]
         model = to_static(
             model,
             input_spec=[
                 paddle.static.InputSpec(
-                    shape=[None] + infer_shape, dtype='float32')
+                    shape=[None] + infer_shape, dtype="float32")
             ])
 
     paddle.jit.save(model, save_path)
-    logger.info('inference model is saved to {}'.format(save_path))
+    logger.info("inference model is saved to {}".format(save_path))
+    return
+
+
+def main():
+    FLAGS = ArgsParser().parse_args()
+    config = load_config(FLAGS.config)
+    merge_config(FLAGS.opt)
+    logger = get_logger()
+    # build post process
+
+    post_process_class = build_post_process(config["PostProcess"],
+                                            config["Global"])
+
+    # build model
+    # for rec algorithm
+    if hasattr(post_process_class, "character"):
+        char_num = len(getattr(post_process_class, "character"))
+        if config["Architecture"]["algorithm"] in ["Distillation",
+                                                   ]:  # distillation model
+            for key in config["Architecture"]["Models"]:
+                config["Architecture"]["Models"][key]["Head"][
+                    "out_channels"] = char_num
+        else:  # base rec model
+            config["Architecture"]["Head"]["out_channels"] = char_num
+    model = build_model(config["Architecture"])
+    init_model(config, model)
+    model.eval()
+
+    save_path = config["Global"]["save_inference_dir"]
+
+    arch_config = config["Architecture"]
+
+    if arch_config["algorithm"] in ["Distillation", ]:  # distillation model
+        archs = list(arch_config["Models"].values())
+        for idx, name in enumerate(model.model_name_list):
+            sub_model_save_path = os.path.join(save_path, name, "inference")
+            export_single_model(model.model_list[idx], archs[idx],
+                                sub_model_save_path, logger)
+    else:
+        save_path = os.path.join(save_path, "inference")
+        export_single_model(model, arch_config, save_path, logger)
 
 
 if __name__ == "__main__":

tools/infer/predict_det.py

@@ -31,7 +31,7 @@ from ppocr.utils.utility import get_image_file_list, check_and_read_gif
 from ppocr.data import create_operators, transform
 from ppocr.postprocess import build_post_process
 
-import tools.infer.benchmark_utils as benchmark_utils
+# import tools.infer.benchmark_utils as benchmark_utils
 
 logger = get_logger()
 
@@ -100,8 +100,6 @@ class TextDetector(object):
         self.predictor, self.input_tensor, self.output_tensors, self.config = utility.create_predictor(
             args, 'det', logger)
 
-        self.det_times = utility.Timer()
-
     def order_points_clockwise(self, pts):
         """
         reference from: https://github.com/jrosebr1/imutils/blob/master/imutils/perspective.py
@@ -158,8 +156,8 @@ class TextDetector(object):
     def __call__(self, img):
         ori_im = img.copy()
         data = {'image': img}
-        self.det_times.total_time.start()
-        self.det_times.preprocess_time.start()
+
+        st = time.time()
         data = transform(data, self.preprocess_op)
         img, shape_list = data
         if img is None:
@@ -168,16 +166,12 @@ class TextDetector(object):
         shape_list = np.expand_dims(shape_list, axis=0)
         img = img.copy()
 
-        self.det_times.preprocess_time.end()
-        self.det_times.inference_time.start()
-
         self.input_tensor.copy_from_cpu(img)
         self.predictor.run()
         outputs = []
         for output_tensor in self.output_tensors:
             output = output_tensor.copy_to_cpu()
             outputs.append(output)
-        self.det_times.inference_time.end()
 
         preds = {}
         if self.det_algorithm == "EAST":
@@ -193,8 +187,6 @@ class TextDetector(object):
         else:
             raise NotImplementedError
 
-        self.det_times.postprocess_time.start()
-
         self.predictor.try_shrink_memory()
         post_result = self.postprocess_op(preds, shape_list)
         dt_boxes = post_result[0]['points']
@@ -203,10 +195,8 @@ class TextDetector(object):
         else:
             dt_boxes = self.filter_tag_det_res(dt_boxes, ori_im.shape)
 
-        self.det_times.postprocess_time.end()
-        self.det_times.total_time.end()
-        self.det_times.img_num += 1
-        return dt_boxes, self.det_times.total_time.value()
+        et = time.time()
+        return dt_boxes, et - st
 
 
 if __name__ == "__main__":
@@ -216,12 +206,13 @@ if __name__ == "__main__":
     count = 0
     total_time = 0
     draw_img_save = "./inference_results"
-    cpu_mem, gpu_mem, gpu_util = 0, 0, 0
 
-    # warmup 10 times
-    fake_img = np.random.uniform(-1, 1, [640, 640, 3]).astype(np.float32)
-    for i in range(10):
-        dt_boxes, _ = text_detector(fake_img)
+    if args.warmup:
+        img = np.random.uniform(0, 255, [640, 640, 3]).astype(np.uint8)
+        for i in range(10):
+            res = text_detector(img)
+
+    cpu_mem, gpu_mem, gpu_util = 0, 0, 0
 
     if not os.path.exists(draw_img_save):
         os.makedirs(draw_img_save)
@@ -239,50 +230,11 @@ if __name__ == "__main__":
             total_time += elapse
         count += 1
 
-        if args.benchmark:
-            cm, gm, gu = utility.get_current_memory_mb(0)
-            cpu_mem += cm
-            gpu_mem += gm
-            gpu_util += gu
-
         logger.info("Predict time of {}: {}".format(image_file, elapse))
         src_im = utility.draw_text_det_res(dt_boxes, image_file)
         img_name_pure = os.path.split(image_file)[-1]
         img_path = os.path.join(draw_img_save,
                                 "det_res_{}".format(img_name_pure))
-
+        cv2.imwrite(img_path, src_im)
         logger.info("The visualized image saved in {}".format(img_path))
-    # print the information about memory and time-spent
-    if args.benchmark:
-        mems = {
-            'cpu_rss_mb': cpu_mem / count,
-            'gpu_rss_mb': gpu_mem / count,
-            'gpu_util': gpu_util * 100 / count
-        }
-    else:
-        mems = None
-    logger.info("The predict time about detection module is as follows: ")
-    det_time_dict = text_detector.det_times.report(average=True)
-    det_model_name = args.det_model_dir
 
-    if args.benchmark:
-        # construct log information
-        model_info = {
-            'model_name': args.det_model_dir.split('/')[-1],
-            'precision': args.precision
-        }
-        data_info = {
-            'batch_size': 1,
-            'shape': 'dynamic_shape',
-            'data_num': det_time_dict['img_num']
-        }
-        perf_info = {
-            'preprocess_time_s': det_time_dict['preprocess_time'],
-            'inference_time_s': det_time_dict['inference_time'],
-            'postprocess_time_s': det_time_dict['postprocess_time'],
-            'total_time_s': det_time_dict['total_time']
-        }
-        benchmark_log = benchmark_utils.PaddleInferBenchmark(
-            text_detector.config, model_info, data_info, perf_info, mems,
-            args.save_log_path)
-        benchmark_log("Det")

tools/infer/predict_rec.py

@@ -257,13 +257,15 @@ def main(args):
     text_recognizer = TextRecognizer(args)
     valid_image_file_list = []
     img_list = []
-    cpu_mem, gpu_mem, gpu_util = 0, 0, 0
-    count = 0
 
     # warmup 10 times
-    fake_img = np.random.uniform(-1, 1, [1, 32, 320, 3]).astype(np.float32)
-    for i in range(10):
-        dt_boxes, _ = text_recognizer(fake_img)
+    if args.warmup:
+        img = np.random.uniform(0, 255, [32, 320, 3]).astype(np.uint8)
+        for i in range(10):
+            res = text_recognizer([img])
+
+    cpu_mem, gpu_mem, gpu_util = 0, 0, 0
+    count = 0
 
     for image_file in image_file_list:
         img, flag = check_and_read_gif(image_file)

tools/infer/predict_system.py

@@ -13,6 +13,7 @@
 # limitations under the License.
 import os
 import sys
+import subprocess
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(__dir__)
@@ -24,6 +25,7 @@ import cv2
 import copy
 import numpy as np
 import time
+import logging
 from PIL import Image
 import tools.infer.utility as utility
 import tools.infer.predict_rec as predict_rec
@@ -38,6 +40,9 @@ logger = get_logger()
 
 class TextSystem(object):
     def __init__(self, args):
+        if not args.show_log:
+            logger.setLevel(logging.INFO)
+
         self.text_detector = predict_det.TextDetector(args)
         self.text_recognizer = predict_rec.TextRecognizer(args)
         self.use_angle_cls = args.use_angle_cls
@@ -142,20 +147,29 @@ def sorted_boxes(dt_boxes):
 
 def main(args):
     image_file_list = get_image_file_list(args.image_dir)
+    image_file_list = image_file_list[args.process_id::args.total_process_num]
     text_sys = TextSystem(args)
     is_visualize = True
     font_path = args.vis_font_path
     drop_score = args.drop_score
+
+    # warm up 10 times
+    if args.warmup:
+        img = np.random.uniform(0, 255, [640, 640, 3]).astype(np.uint8)
+        for i in range(10):
+            res = text_sys(img)
+            
     total_time = 0
     cpu_mem, gpu_mem, gpu_util = 0, 0, 0
     _st = time.time()
     count = 0
     for idx, image_file in enumerate(image_file_list):
+
         img, flag = check_and_read_gif(image_file)
         if not flag:
             img = cv2.imread(image_file)
         if img is None:
-            logger.error("error in loading image:{}".format(image_file))
+            logger.info("error in loading image:{}".format(image_file))
             continue
         starttime = time.time()
         dt_boxes, rec_res = text_sys(img)
@@ -259,4 +273,18 @@ def main(args):
 
 
 if __name__ == "__main__":
-    main(utility.parse_args())
+    args = utility.parse_args()
+    if args.use_mp:
+        p_list = []
+        total_process_num = args.total_process_num
+        for process_id in range(total_process_num):
+            cmd = [sys.executable, "-u"] + sys.argv + [
+                "--process_id={}".format(process_id),
+                "--use_mp={}".format(False)
+            ]
+            p = subprocess.Popen(cmd, stdout=sys.stdout, stderr=sys.stdout)
+            p_list.append(p)
+        for p in p_list:
+            p.wait()
+    else:
+        main(args)

tools/infer/utility.py

@@ -106,7 +106,9 @@ def init_args():
     parser.add_argument("--enable_mkldnn", type=str2bool, default=False)
     parser.add_argument("--cpu_threads", type=int, default=10)
     parser.add_argument("--use_pdserving", type=str2bool, default=False)
+    parser.add_argument("--warmup", type=str2bool, default=True)
 
+    # multi-process
     parser.add_argument("--use_mp", type=str2bool, default=False)
     parser.add_argument("--total_process_num", type=int, default=1)
     parser.add_argument("--process_id", type=int, default=0)
@@ -115,7 +117,6 @@ def init_args():
     parser.add_argument("--save_log_path", type=str, default="./log_output/")
 
     parser.add_argument("--show_log", type=str2bool, default=True)
-
     return parser
 
 
@@ -201,8 +202,8 @@ def create_predictor(args, mode, logger):
         model_dir = args.cls_model_dir
     elif mode == 'rec':
         model_dir = args.rec_model_dir
-    elif mode == 'structure':
-        model_dir = args.structure_model_dir
+    elif mode == 'table':
+        model_dir = args.table_model_dir
     else:
         model_dir = args.e2e_model_dir
 
@@ -310,10 +311,11 @@ def create_predictor(args, mode, logger):
     config.disable_glog_info()
 
     config.delete_pass("conv_transpose_eltwiseadd_bn_fuse_pass")
+    if mode == 'table':
+        config.delete_pass("fc_fuse_pass") # not supported for table    
     config.switch_use_feed_fetch_ops(False)
     config.switch_ir_optim(True)
-    if mode == 'structure':
-        config.switch_ir_optim(False)
+
     # create predictor
     predictor = inference.create_predictor(config)
     input_names = predictor.get_input_names()

tools/infer_cls.py

@@ -47,7 +47,7 @@ def main():
     # build model
     model = build_model(config['Architecture'])
 
-    init_model(config, model, logger)
+    init_model(config, model)
 
     # create data ops
     transforms = []

tools/infer_det.py

@@ -61,7 +61,7 @@ def main():
     # build model
     model = build_model(config['Architecture'])
 
-    init_model(config, model, logger)
+    init_model(config, model)
 
     # build post process
     post_process_class = build_post_process(config['PostProcess'])
@@ -112,4 +112,4 @@ def main():
 
 if __name__ == '__main__':
     config, device, logger, vdl_writer = program.preprocess()
-    main()
\ No newline at end of file
+    main()

tools/infer_e2e.py

@@ -68,7 +68,7 @@ def main():
     # build model
     model = build_model(config['Architecture'])
 
-    init_model(config, model, logger)
+    init_model(config, model)
 
     # build post process
     post_process_class = build_post_process(config['PostProcess'],

tools/infer_rec.py

@@ -20,6 +20,7 @@ import numpy as np
 
 import os
 import sys
+import json
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(__dir__)
@@ -46,12 +47,18 @@ def main():
 
     # build model
     if hasattr(post_process_class, 'character'):
-        config['Architecture']["Head"]['out_channels'] = len(
-            getattr(post_process_class, 'character'))
+        char_num = len(getattr(post_process_class, 'character'))
+        if config['Architecture']["algorithm"] in ["Distillation",
+                                                   ]:  # distillation model
+            for key in config['Architecture']["Models"]:
+                config['Architecture']["Models"][key]["Head"][
+                    'out_channels'] = char_num
+        else:  # base rec model
+            config['Architecture']["Head"]['out_channels'] = char_num
 
     model = build_model(config['Architecture'])
 
-    init_model(config, model, logger)
+    init_model(config, model)
 
     # create data ops
     transforms = []
@@ -107,11 +114,23 @@ def main():
             else:
                 preds = model(images)
             post_result = post_process_class(preds)
-            for rec_reuslt in post_result:
-                logger.info('\t result: {}'.format(rec_reuslt))
-                if len(rec_reuslt) >= 2:
-                    fout.write(file + "\t" + rec_reuslt[0] + "\t" + str(
-                        rec_reuslt[1]) + "\n")
+            info = None
+            if isinstance(post_result, dict):
+                rec_info = dict()
+                for key in post_result:
+                    if len(post_result[key][0]) >= 2:
+                        rec_info[key] = {
+                            "label": post_result[key][0][0],
+                            "score": post_result[key][0][1],
+                        }
+                info = json.dumps(rec_info)
+            else:
+                if len(post_result[0]) >= 2:
+                    info = post_result[0][0] + "\t" + str(post_result[0][1])
+
+            if info is not None:
+                logger.info("\t result: {}".format(info))
+                fout.write(file + "\t" + info)
     logger.info("success!")
 
 

tools/infer_table.py

+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import numpy as np
+
+import os
+import sys
+import json
+
+__dir__ = os.path.dirname(os.path.abspath(__file__))
+sys.path.append(__dir__)
+sys.path.append(os.path.abspath(os.path.join(__dir__, '..')))
+
+os.environ["FLAGS_allocator_strategy"] = 'auto_growth'
+
+import paddle
+from paddle.jit import to_static
+
+from ppocr.data import create_operators, transform
+from ppocr.modeling.architectures import build_model
+from ppocr.postprocess import build_post_process
+from ppocr.utils.save_load import init_model
+from ppocr.utils.utility import get_image_file_list
+import tools.program as program
+import cv2
+
+def main(config, device, logger, vdl_writer):
+    global_config = config['Global']
+
+    # build post process
+    post_process_class = build_post_process(config['PostProcess'],
+                                            global_config)
+
+    # build model
+    if hasattr(post_process_class, 'character'):
+        config['Architecture']["Head"]['out_channels'] = len(
+            getattr(post_process_class, 'character'))
+
+    model = build_model(config['Architecture'])
+
+    init_model(config, model, logger)
+
+    # create data ops
+    transforms = []
+    use_padding = False
+    for op in config['Eval']['dataset']['transforms']:
+        op_name = list(op)[0]
+        if 'Label' in op_name:
+            continue
+        if op_name == 'KeepKeys':
+            op[op_name]['keep_keys'] = ['image']
+        if op_name == "ResizeTableImage":
+            use_padding = True
+            padding_max_len = op['ResizeTableImage']['max_len']
+        transforms.append(op)
+
+    global_config['infer_mode'] = True
+    ops = create_operators(transforms, global_config)
+
+    model.eval()
+    for file in get_image_file_list(config['Global']['infer_img']):
+        logger.info("infer_img: {}".format(file))
+        with open(file, 'rb') as f:
+            img = f.read()
+            data = {'image': img}
+        batch = transform(data, ops)
+        images = np.expand_dims(batch[0], axis=0)
+        images = paddle.to_tensor(images)
+        preds = model(images)
+        post_result = post_process_class(preds)
+        res_html_code = post_result['res_html_code']
+        res_loc = post_result['res_loc']
+        img = cv2.imread(file)
+        imgh, imgw = img.shape[0:2]
+        res_loc_final = []
+        for rno in range(len(res_loc[0])):
+            x0, y0, x1, y1 = res_loc[0][rno]
+            left = max(int(imgw * x0), 0)
+            top = max(int(imgh * y0), 0)
+            right = min(int(imgw * x1), imgw - 1)
+            bottom = min(int(imgh * y1), imgh - 1)
+            cv2.rectangle(img, (left, top), (right, bottom), (0, 0, 255), 2)
+            res_loc_final.append([left, top, right, bottom])
+        res_loc_str = json.dumps(res_loc_final)
+        logger.info("result: {}, {}".format(res_html_code, res_loc_final))
+    logger.info("success!")
+
+
+if __name__ == '__main__':
+    config, device, logger, vdl_writer = program.preprocess()
+    main(config, device, logger, vdl_writer)
+

tools/program.py

-# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -186,6 +186,7 @@ def train(config,
     model.train()
 
     use_srn = config['Architecture']['algorithm'] == "SRN"
+    model_type = config['Architecture']['model_type']
 
     if 'start_epoch' in best_model_dict:
         start_epoch = best_model_dict['start_epoch']
@@ -208,9 +209,9 @@ def train(config,
             lr = optimizer.get_lr()
             images = batch[0]
             if use_srn:
-                others = batch[-4:]
-                preds = model(images, others)
                 model_average = True
+            if use_srn or model_type == 'table':
+                preds = model(images, data=batch[1:])
             else:
                 preds = model(images)
             loss = loss_class(preds, batch)
@@ -232,8 +233,11 @@ def train(config,
 
             if cal_metric_during_train:  # only rec and cls need
                 batch = [item.numpy() for item in batch]
-                post_result = post_process_class(preds, batch[1])
-                eval_class(post_result, batch)
+                if model_type == 'table':
+                    eval_class(preds, batch)
+                else:
+                    post_result = post_process_class(preds, batch[1])
+                    eval_class(post_result, batch)
                 metric = eval_class.get_metric()
                 train_stats.update(metric)
 
@@ -269,6 +273,7 @@ def train(config,
                     valid_dataloader,
                     post_process_class,
                     eval_class,
+                    model_type,
                     use_srn=use_srn)
                 cur_metric_str = 'cur metric, {}'.format(', '.join(
                     ['{}: {}'.format(k, v) for k, v in cur_metric.items()]))
@@ -336,7 +341,11 @@ def train(config,
     return
 
 
-def eval(model, valid_dataloader, post_process_class, eval_class,
+def eval(model,
+         valid_dataloader,
+         post_process_class,
+         eval_class,
+         model_type,
          use_srn=False):
     model.eval()
     with paddle.no_grad():
@@ -350,19 +359,19 @@ def eval(model, valid_dataloader, post_process_class, eval_class,
                 break
             images = batch[0]
             start = time.time()
-
-            if use_srn:
-                others = batch[-4:]
-                preds = model(images, others)
+            if use_srn or model_type == 'table':
+                preds = model(images, data=batch[1:])
             else:
                 preds = model(images)
-
             batch = [item.numpy() for item in batch]
             # Obtain usable results from post-processing methods
-            post_result = post_process_class(preds, batch[1])
             total_time += time.time() - start
             # Evaluate the results of the current batch
-            eval_class(post_result, batch)
+            if model_type == 'table':
+                eval_class(preds, batch)
+            else:
+                post_result = post_process_class(preds, batch[1])
+                eval_class(post_result, batch)
             pbar.update(1)
             total_frame += len(images)
         # Get final metric，eg. acc or hmean
@@ -386,7 +395,7 @@ def preprocess(is_train=False):
     alg = config['Architecture']['algorithm']
     assert alg in [
         'EAST', 'DB', 'SAST', 'Rosetta', 'CRNN', 'STARNet', 'RARE', 'SRN',
-        'CLS', 'PGNet'
+        'CLS', 'PGNet', 'Distillation', 'TableAttn'
     ]
 
     device = 'gpu:{}'.format(dist.ParallelEnv().dev_id) if use_gpu else 'cpu'

tools/train.py

@@ -72,7 +72,14 @@ def main(config, device, logger, vdl_writer):
     # for rec algorithm
     if hasattr(post_process_class, 'character'):
         char_num = len(getattr(post_process_class, 'character'))
-        config['Architecture']["Head"]['out_channels'] = char_num
+        if config['Architecture']["algorithm"] in ["Distillation",
+                                                   ]:  # distillation model
+            for key in config['Architecture']["Models"]:
+                config['Architecture']["Models"][key]["Head"][
+                    'out_channels'] = char_num
+        else:  # base rec model
+            config['Architecture']["Head"]['out_channels'] = char_num
+
     model = build_model(config['Architecture'])
     if config['Global']['distributed']:
         model = paddle.DataParallel(model)
@@ -90,7 +97,7 @@ def main(config, device, logger, vdl_writer):
     # build metric
     eval_class = build_metric(config['Metric'])
     # load pretrain model
-    pre_best_model_dict = init_model(config, model, logger, optimizer)
+    pre_best_model_dict = init_model(config, model, optimizer)
 
     logger.info('train dataloader has {} iters'.format(len(train_dataloader)))
     if valid_dataloader is not None: