add blazeface & update rcnn modelzoo (#2303)

* add blazeface & update rcnn modelzoo * remove condition num_priors

add blazeface & update rcnn modelzoo (#2303)
* add blazeface & update rcnn modelzoo * remove condition num_priors
01d905e3 · Guanghua Yu · GitHub · 1d1c5826 · 01d905e3 · 01d905e3
29 changed file
--- a/dygraph/configs/datasets/wider_face.yml
+++ b/dygraph/configs/datasets/wider_face.yml
+metric: WiderFace
+num_classes: 1
+TrainDataset:
+  !WIDERFaceDataSet
+    dataset_dir: dataset/wider_face
+    anno_path: wider_face_split/wider_face_train_bbx_gt.txt
+    image_dir: WIDER_train/images
+    data_fields: ['image', 'gt_bbox', 'gt_class']
+EvalDataset:
+  !WIDERFaceDataSet
+    dataset_dir: dataset/wider_face
+    anno_path: wider_face_split/wider_face_val_bbx_gt.txt
+    image_dir: WIDER_val/images
+    data_fields: ['image']
+TestDataset:
+  !ImageFolder
+    use_default_label: true
--- a/dygraph/configs/dcn/README.md
+++ b/dygraph/configs/dcn/README.md
@@ -7,10 +7,10 @@
 | ResNet50-vd-FPN      | Faster         | c3-c5   |    1      |   2x    |    -     |  43.7  |    -    | [下载链接](https://paddledet.bj.bcebos.com/models/faster_rcnn_dcn_r50_vd_fpn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/faster_rcnn_dcn_r50_vd_fpn_2x_coco.yml) |
 | ResNet101-vd-FPN     | Faster         | c3-c5   |    1      |   1x    |    -     |  45.1  |    -    | [下载链接](https://paddledet.bj.bcebos.com/models/faster_rcnn_dcn_r101_vd_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/faster_rcnn_dcn_r101_vd_fpn_1x_coco.yml) |
 | ResNeXt101-vd-FPN    | Faster         | c3-c5   |    1      |   1x    |    -     |  46.5  |    -    | [下载链接](https://paddledet.bj.bcebos.com/models/faster_rcnn_dcn_x101_vd_64x4d_fpn_1x_coco.pdparams) |[配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/faster_rcnn_dcn_x101_vd_64x4d_fpn_1x_coco.yml) |
-| ResNet50-FPN         | Mask           | c3-c5   |    1      |   1x    |    -     |  -  |   -   | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_dcn_r50_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/mask_rcnn_dcn_r50_fpn_1x_coco.yml) |
+| ResNet50-FPN         | Mask           | c3-c5   |    1      |   1x    |    -     |  42.7  |   38.4   | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_dcn_r50_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/mask_rcnn_dcn_r50_fpn_1x_coco.yml) |
-| ResNet50-vd-FPN      | Mask           | c3-c5   |    1      |   2x    |    -     |  -  |  -   | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_dcn_r50_vd_fpn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/mask_rcnn_dcn_r50_vd_fpn_2x_coco.yml) |
+| ResNet50-vd-FPN      | Mask           | c3-c5   |    1      |   2x    |    -     |  44.6  |  39.8   | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_dcn_r50_vd_fpn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/mask_rcnn_dcn_r50_vd_fpn_2x_coco.yml) |
 | ResNet101-vd-FPN     | Mask           | c3-c5   |    1      |   1x    |    -     |  45.6 |  40.6  | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_dcn_r101_vd_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/mask_rcnn_dcn_r101_vd_fpn_1x_coco.yml) |
-| ResNeXt101-vd-FPN    | Mask           | c3-c5   |    1      |   1x    |     -    |  - |  -  | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_dcn_x101_vd_64x4d_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/mask_rcnn_dcn_x101_vd_64x4d_fpn_1x_coco.yml) |
+| ResNeXt101-vd-FPN    | Mask           | c3-c5   |    1      |   1x    |     -    |  47.3 |  42.0  | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_dcn_x101_vd_64x4d_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/mask_rcnn_dcn_x101_vd_64x4d_fpn_1x_coco.yml) |
 | ResNet50-FPN         | Cascade Faster         | c3-c5   |    1      |   1x    |    -     |  42.1  |    -    | [下载链接](https://paddledet.bj.bcebos.com/models/cascade_rcnn_dcn_r50_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/cascade_rcnn_dcn_r50_fpn_1x_coco.yml) |
 | ResNeXt101-vd-FPN    | Cascade Faster           | c3-c5   |    1      |   1x    |     -    |  48.8 |  -  | [下载链接](https://paddledet.bj.bcebos.com/models/cascade_rcnn_dcn_x101_vd_64x4d_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/dcn/cascade_rcnn_dcn_x101_vd_64x4d_fpn_1x_coco.yml) |

--- a/dygraph/configs/face_detection/README.md
+++ b/dygraph/configs/face_detection/README.md
+# 人脸检测模型
+## 简介
+`face_detection`中提供高效、高速的人脸检测解决方案，包括最先进的模型和经典模型。
+![](../../docs/images/12_Group_Group_12_Group_Group_12_935.jpg)
+## 模型库
+#### WIDER-FACE数据集上的mAP
+| 网络结构 | 输入尺寸 | 图片个数/GPU | 学习率策略 | Easy/Medium/Hard Set  | 预测时延（SD855）| 模型大小(MB) | 下载 | 配置文件 |
+|:------------:|:--------:|:----:|:-------:|:-------:|:---------:|:----------:|:---------:|:--------:|
+| BlazeFace  | 640  |    8    | 1000e     | 0.889 / 0.859 / 0.740 | - | 0.472 |[下载链接](https://paddledet.bj.bcebos.com/models/blazeface_1000e.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/face_detection/blazeface_1000e.yml) |
+**注意:**  
+- 我们使用多尺度评估策略得到`Easy/Medium/Hard Set`里的mAP。具体细节请参考[在WIDER-FACE数据集上评估](#在WIDER-FACE数据集上评估)。
+## 快速开始
+### 数据准备
+我们使用[WIDER-FACE数据集](http://shuoyang1213.me/WIDERFACE/)进行训练和模型测试，官方网站提供了详细的数据介绍。
+- WIDER-Face数据源:  
+使用如下目录结构加载`wider_face`类型的数据集：
+  ```
+  dataset/wider_face/
+  ├── wider_face_split
+  │   ├── wider_face_train_bbx_gt.txt
+  │   ├── wider_face_val_bbx_gt.txt
+  ├── WIDER_train
+  │   ├── images
+  │   │   ├── 0--Parade
+  │   │   │   ├── 0_Parade_marchingband_1_100.jpg
+  │   │   │   ├── 0_Parade_marchingband_1_381.jpg
+  │   │   │   │   ...
+  │   │   ├── 10--People_Marching
+  │   │   │   ...
+  ├── WIDER_val
+  │   ├── images
+  │   │   ├── 0--Parade
+  │   │   │   ├── 0_Parade_marchingband_1_1004.jpg
+  │   │   │   ├── 0_Parade_marchingband_1_1045.jpg
+  │   │   │   │   ...
+  │   │   ├── 10--People_Marching
+  │   │   │   ...
+  ```
+- 手动下载数据集：
+要下载WIDER-FACE数据集，请运行以下命令：
+```
+cd dataset/wider_face && ./download_wider_face.sh
+```
+### 训练与评估
+训练流程与评估流程方法与其他算法一致，请参考[GETTING_STARTED_cn.md](../../docs/tutorials/GETTING_STARTED_cn.md)。  
+**注意:**
+- 人脸检测模型目前不支持边训练边评估。
+#### 在WIDER-FACE数据集上评估
+评估并生成结果文件：
+```shell
+python -u tools/eval.py -c configs/face_detection/blazeface_1000e.yml \
+       -o weights=output/blazeface_1000e/model_final \
+       multi_scale=True
+```
+设置`multi_scale=True`进行多尺度评估，评估完成后，将在`output/pred`中生成txt格式的测试结果。
+- 下载官方评估脚本来评估AP指标：
+```
+wget http://mmlab.ie.cuhk.edu.hk/projects/WIDERFace/support/eval_script/eval_tools.zip
+unzip eval_tools.zip && rm -f eval_tools.zip
+```
+- 在`eval_tools/wider_eval.m`中修改保存结果路径和绘制曲线的名称：
+```
+# Modify the folder name where the result is stored.
+pred_dir = './pred';  
+# Modify the name of the curve to be drawn
+legend_name = 'Fluid-BlazeFace';
+```
+- `wider_eval.m` 是评估模块的主要执行程序。运行命令如下：
+```
+matlab -nodesktop -nosplash -nojvm -r "run wider_eval.m;quit;"
+```
+## Citations
+```
+@article{bazarevsky2019blazeface,
+      title={BlazeFace: Sub-millisecond Neural Face Detection on Mobile GPUs},
+      author={Valentin Bazarevsky and Yury Kartynnik and Andrey Vakunov and Karthik Raveendran and Matthias Grundmann},
+      year={2019},
+      eprint={1907.05047},
+      archivePrefix={arXiv},
+```
--- a/dygraph/configs/face_detection/_base_/blazeface.yml
+++ b/dygraph/configs/face_detection/_base_/blazeface.yml
+architecture: SSD
+SSD:
+  backbone: BlazeNet
+  ssd_head: FaceHead
+  post_process: BBoxPostProcess
+BlazeNet:
+  blaze_filters: [[24, 24], [24, 24], [24, 48, 2], [48, 48], [48, 48]]
+  double_blaze_filters: [[48, 24, 96, 2], [96, 24, 96], [96, 24, 96],
+                          [96, 24, 96, 2], [96, 24, 96], [96, 24, 96]]
+FaceHead:
+  in_channels: [96, 96]
+  anchor_generator: AnchorGeneratorSSD
+  loss: SSDLoss
+SSDLoss:
+  overlap_threshold: 0.35
+  neg_overlap: 0.35
+AnchorGeneratorSSD:
+  steps: [8., 16.]
+  aspect_ratios: [[1.], [1.]]
+  min_sizes: [[16.,24.], [32., 48., 64., 80., 96., 128.]]
+  max_sizes: [[], []]
+  offset: 0.5
+  flip: False
+  min_max_aspect_ratios_order: false
+BBoxPostProcess:
+  decode:
+    name: SSDBox
+  nms:
+    name: MultiClassNMS
+    keep_top_k: 750
+    score_threshold: 0.01
+    nms_threshold: 0.3
+    nms_top_k: 5000
+    nms_eta: 1.0
--- a/dygraph/configs/face_detection/_base_/face_reader.yml
+++ b/dygraph/configs/face_detection/_base_/face_reader.yml
+worker_num: 2
+TrainReader:
+  inputs_def:
+    num_max_boxes: 90
+  sample_transforms:
+    - Decode: {}
+    - RandomDistort: {brightness: [0.5, 1.125, 0.875], random_apply: False}
+    - RandomExpand: {fill_value: [123.675, 116.28, 103.53]}
+    - RandomFlip: {}
+    - CropWithDataAchorSampling: {
+      anchor_sampler: [[1, 10, 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 0.2, 0.0]],
+      batch_sampler: [
+        [1, 50, 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0],
+        [1, 50, 0.3, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0],
+        [1, 50, 0.3, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0],
+        [1, 50, 0.3, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0],
+        [1, 50, 0.3, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0],
+      ],
+      target_size: 640}
+    - Resize: {target_size: [640, 640], keep_ratio: False, interp: 1}
+    - NormalizeBox: {}
+    - PadBox: {num_max_boxes: 90}
+  batch_transforms:
+    - NormalizeImage: {mean:  [123, 117, 104], std: [127.502231, 127.502231, 127.502231], is_scale: false}
+    - Permute: {}
+  batch_size: 8
+  shuffle: true
+  drop_last: true
+EvalReader:
+  sample_transforms:
+    - Decode: {}
+    - NormalizeImage: {mean:  [123, 117, 104], std: [127.502231, 127.502231, 127.502231], is_scale: false}
+    - Permute: {}
+  batch_size: 1
+  drop_empty: false
+TestReader:
+  sample_transforms:
+    - Decode: {}
+    - NormalizeImage: {mean:  [123, 117, 104], std: [127.502231, 127.502231, 127.502231], is_scale: false}
+    - Permute: {}
+  batch_size: 1
--- a/dygraph/configs/face_detection/_base_/optimizer_1000e.yml
+++ b/dygraph/configs/face_detection/_base_/optimizer_1000e.yml
+epoch: 1000
+LearningRate:
+  base_lr: 0.001
+  schedulers:
+  - !PiecewiseDecay
+    gamma: 0.1
+    milestones:
+    - 333
+    - 800
+  - !LinearWarmup
+    start_factor: 0.3333333333333333
+    steps: 500
+OptimizerBuilder:
+  optimizer:
+    momentum: 0.0
+    type: RMSProp
+  regularizer:
+    factor: 0.0005
+    type: L2
--- a/dygraph/configs/face_detection/blazeface_1000e.yml
+++ b/dygraph/configs/face_detection/blazeface_1000e.yml
+_BASE_: [
+  '../datasets/wider_face.yml',
+  '../runtime.yml',
+  '_base_/optimizer_1000e.yml',
+  '_base_/blazeface.yml',
+  '_base_/face_reader.yml',
+]
+weights: output/blazeface_1000e/model_final
+multi_scale_eval: True
--- a/dygraph/configs/gn/README.md
+++ b/dygraph/configs/gn/README.md
@@ -6,6 +6,9 @@
 | :------------- | :------------- | :-----------: | :------: | :--------: |:-----: | :-----: | :----: | :----: |
 | ResNet50-FPN   | Faster         |    1          |   2x     |    -       |  41.9  |    -    | [下载链接](https://paddledet.bj.bcebos.com/models/faster_rcnn_r50_fpn_gn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/gn/faster_rcnn_r50_fpn_gn_2x_coco.yml) |
 | ResNet50-FPN   | Mask           |    1          |   2x     |    -       |  42.3   |  38.4  | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_r50_fpn_gn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/gn/mask_rcnn_r50_fpn_gn_2x_coco.yml) |
+| ResNet50-FPN   | Cascade Faster    |    1          |   2x     |    -       |  -   |  -  | [下载链接](https://paddledet.bj.bcebos.com/models/cascade_rcnn_r50_fpn_gn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/gn/cascade_rcnn_r50_fpn_gn_2x_coco.yml) |
+| ResNet50-FPN   | Cacade Mask      |    1          |   2x     |    -       |  45.0   |  39.3  | [下载链接](https://paddledet.bj.bcebos.com/models/cascade_mask_rcnn_r50_fpn_gn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/gn/cascade_mask_rcnn_r50_fpn_gn_2x_coco.yml) |
 **注意：** Faster R-CNN baseline仅使用 `2fc` head，而此处使用[`4conv1fc` head](https://arxiv.org/abs/1803.08494)（4层conv之间使用GN），并且FPN也使用GN，而对于Mask R-CNN是在mask head的4层conv之间也使用GN。

--- a/dygraph/configs/gn/cascade_mask_rcnn_r50_fpn_gn_2x.yml
+++ b/dygraph/configs/gn/cascade_mask_rcnn_r50_fpn_gn_2x.yml
@@ -5,7 +5,7 @@ _BASE_: [
  '../cascade_rcnn/_base_/cascade_mask_rcnn_r50_fpn.yml',
  '../cascade_rcnn/_base_/cascade_mask_fpn_reader.yml',
 ]
-weights: output/cascade_mask_rcnn_r50_fpn_gn_2x/model_final
+weights: output/cascade_mask_rcnn_r50_fpn_gn_2x_coco/model_final
 CascadeRCNN:
  backbone: ResNet

--- a/dygraph/configs/gn/cascade_rcnn_r50_fpn_gn_2x.yml
+++ b/dygraph/configs/gn/cascade_rcnn_r50_fpn_gn_2x.yml
@@ -5,7 +5,7 @@ _BASE_: [
  '../cascade_rcnn/_base_/cascade_rcnn_r50_fpn.yml',
  '../cascade_rcnn/_base_/cascade_fpn_reader.yml',
 ]
-weights: output/cascade_rcnn_r50_fpn_gn_2x/model_final
+weights: output/cascade_rcnn_r50_fpn_gn_2x_coco/model_final
 FPN:
  out_channel: 256

--- a/dygraph/configs/mask_rcnn/README.md
+++ b/dygraph/configs/mask_rcnn/README.md
@@ -13,7 +13,7 @@
 | ResNet101-FPN         | Mask         |    1    |   1x    |     ----     |  40.6  |    36.6    | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_r101_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/mask_rcnn/mask_rcnn_r101_fpn_1x_coco.yml) |
 | ResNet101-vd-FPN         | Mask         |    1    |   1x    |     ----     |  42.4  |    38.1    | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_r101_vd_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/mask_rcnn/mask_rcnn_r101_vd_fpn_1x_coco.yml) |
 | ResNeXt101-vd-FPN        | Mask         |    1    |   1x    |     ----     |  44.0  |    39.5   | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_x101_vd_64x4d_fpn_1x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/mask_rcnn/mask_rcnn_x101_vd_64x4d_fpn_1x_coco.yml) |
-| ResNeXt101-vd-FPN        | Mask         |    1    |   2x    |     ----     |  -  |    -   | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_x101_vd_64x4d_fpn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/mask_rcnn/mask_rcnn_x101_vd_64x4d_fpn_2x_coco.yml) |
+| ResNeXt101-vd-FPN        | Mask         |    1    |   2x    |     ----     |  44.6  |    39.8   | [下载链接](https://paddledet.bj.bcebos.com/models/mask_rcnn_x101_vd_64x4d_fpn_2x_coco.pdparams) | [配置文件](https://github.com/PaddlePaddle/PaddleDetection/tree/master/dygraph/configs/mask_rcnn/mask_rcnn_x101_vd_64x4d_fpn_2x_coco.yml) |
 **注意：** Mask R-CNN模型精度依赖Paddle develop分支修改，精度复现须使用[每日版本](https://www.paddlepaddle.org.cn/documentation/docs/zh/install/Tables.html#whl-dev)或2.0.1版本(将于2021.03发布)，使用Paddle 2.0.0版本会有少量精度损失。

--- a/dygraph/dataset/wider_face/download_wider_face.sh
+++ b/dygraph/dataset/wider_face/download_wider_face.sh
+# All rights `PaddleDetection` reserved
+# References:
+#   @inproceedings{yang2016wider,
+#   Author = {Yang, Shuo and Luo, Ping and Loy, Chen Change and Tang, Xiaoou},
+#   Booktitle = {IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
+#   Title = {WIDER FACE: A Face Detection Benchmark},
+#   Year = {2016}}
+DIR="$( cd "$(dirname "$0")" ; pwd -P )"
+cd "$DIR"
+# Download the data.
+echo "Downloading..."
+wget https://dataset.bj.bcebos.com/wider_face/WIDER_train.zip
+wget https://dataset.bj.bcebos.com/wider_face/WIDER_val.zip
+wget https://dataset.bj.bcebos.com/wider_face/wider_face_split.zip
+# Extract the data.
+echo "Extracting..."
+unzip -q WIDER_train.zip
+unzip -q WIDER_val.zip
+unzip -q wider_face_split.zip
--- a/dygraph/docs/images/12_Group_Group_12_Group_Group_12_935.jpg
+++ b/dygraph/docs/images/12_Group_Group_12_Group_Group_12_935.jpg
--- a/dygraph/ppdet/data/source/widerface.py
+++ b/dygraph/ppdet/data/source/widerface.py
@@ -16,7 +16,7 @@ import os
 import numpy as np
 from ppdet.core.workspace import register, serializable
-from .dataset import DataSet
+from .dataset import DetDataset
 from ppdet.utils.logger import setup_logger
 logger = setup_logger(__name__)
@@ -24,7 +24,7 @@ logger = setup_logger(__name__)
 @register
 @serializable
-class WIDERFaceDataSet(DataSet):
+class WIDERFaceDataSet(DetDataset):
    """
    Load WiderFace records with 'anno_path'
@@ -39,20 +39,23 @@ class WIDERFaceDataSet(DataSet):
                 dataset_dir=None,
                 image_dir=None,
                 anno_path=None,
+                 data_fields=['image'],
                 sample_num=-1,
                 with_lmk=False):
        super(WIDERFaceDataSet, self).__init__(
+            dataset_dir=dataset_dir,
            image_dir=image_dir,
            anno_path=anno_path,
+            data_fields=data_fields,
            sample_num=sample_num,
-            dataset_dir=dataset_dir)
+            with_lmk=with_lmk)
        self.anno_path = anno_path
        self.sample_num = sample_num
        self.roidbs = None
        self.cname2cid = None
        self.with_lmk = with_lmk
-    def load_roidb_and_cname2cid(self, ):
+    def parse_dataset(self):
        anno_path = os.path.join(self.dataset_dir, self.anno_path)
        image_dir = os.path.join(self.dataset_dir, self.image_dir)
@@ -67,7 +70,7 @@ class WIDERFaceDataSet(DataSet):
            im_fname = item[0]
            im_id = np.array([ct])
            gt_bbox = np.zeros((len(item) - 1, 4), dtype=np.float32)
-            gt_class = np.ones((len(item) - 1, 1), dtype=np.int32)
+            gt_class = np.zeros((len(item) - 1, 1), dtype=np.int32)
            gt_lmk_labels = np.zeros((len(item) - 1, 10), dtype=np.float32)
            lmk_ignore_flag = np.zeros((len(item) - 1, 1), dtype=np.int32)
            for index_box in range(len(item)):
@@ -82,9 +85,14 @@ class WIDERFaceDataSet(DataSet):
            widerface_rec = {
                'im_file': im_fname,
                'im_id': im_id,
+            } if 'image' in self.data_fields else {}
+            gt_rec = {
                'gt_bbox': gt_bbox,
                'gt_class': gt_class,
            }
+            for k, v in gt_rec.items():
+                if k in self.data_fields:
+                    widerface_rec[k] = v
            if self.with_lmk:
                widerface_rec['gt_keypoint'] = gt_lmk_labels
                widerface_rec['keypoint_ignore'] = lmk_ignore_flag
@@ -105,18 +113,24 @@ class WIDERFaceDataSet(DataSet):
        file_dict = {}
        num_class = 0
+        exts = ['jpg', 'jpeg', 'png', 'bmp']
+        exts += [ext.upper() for ext in exts]
        for i in range(len(lines_input_txt)):
            line_txt = lines_input_txt[i].strip('\n\t\r')
-            if '.jpg' in line_txt:
+            split_str = line_txt.split(' ')
+            if len(split_str) == 1:
+                img_file_name = os.path.split(split_str[0])[1]
+                split_txt = img_file_name.split('.')
+                if len(split_txt) < 2:
+                    continue
+                elif split_txt[-1] in exts:
                    if i != 0:
                        num_class += 1
-                file_dict[num_class] = []
+                    file_dict[num_class] = [line_txt]
-                file_dict[num_class].append(line_txt)
+            else:
-            if '.jpg' not in line_txt:
                if len(line_txt) <= 6:
                    continue
                result_boxs = []
-                split_str = line_txt.split(' ')
                xmin = float(split_str[0])
                ymin = float(split_str[1])
                w = float(split_str[2])

--- a/dygraph/ppdet/data/transform/operators.py
+++ b/dygraph/ppdet/data/transform/operators.py
@@ -994,7 +994,7 @@ class CropWithDataAchorSampling(BaseOperator):
              [max sample, max trial, min scale, max scale,
               min aspect ratio, max aspect ratio,
               min overlap, max overlap, min coverage, max coverage]
-            target_size (bool): target image size.
+            target_size (int): target image size.
            das_anchor_scales (list[float]): a list of anchor scales in data
                anchor smapling.
            min_size (float): minimum size of sampled bbox.
@@ -1026,6 +1026,10 @@ class CropWithDataAchorSampling(BaseOperator):
        gt_bbox = sample['gt_bbox']
        gt_class = sample['gt_class']
        image_height, image_width = im.shape[:2]
+        gt_bbox[:, 0] /= image_width
+        gt_bbox[:, 1] /= image_height
+        gt_bbox[:, 2] /= image_width
+        gt_bbox[:, 3] /= image_height
        gt_score = None
        if 'gt_score' in sample:
            gt_score = sample['gt_score']
@@ -1073,9 +1077,15 @@ class CropWithDataAchorSampling(BaseOperator):
                        continue
                im = crop_image_sampling(im, sample_bbox, image_width,
                                         image_height, self.target_size)
+                height, width = im.shape[:2]
+                crop_bbox[:, 0] *= width
+                crop_bbox[:, 1] *= height
+                crop_bbox[:, 2] *= width
+                crop_bbox[:, 3] *= height
                sample['image'] = im
                sample['gt_bbox'] = crop_bbox
                sample['gt_class'] = crop_class
+                if 'gt_score' in sample:
                    sample['gt_score'] = crop_score
                if 'gt_keypoint' in sample.keys():
                    sample['gt_keypoint'] = gt_keypoints[0]
@@ -1124,9 +1134,15 @@ class CropWithDataAchorSampling(BaseOperator):
                ymin = int(sample_bbox[1] * image_height)
                ymax = int(sample_bbox[3] * image_height)
                im = im[ymin:ymax, xmin:xmax]
+                height, width = im.shape[:2]
+                crop_bbox[:, 0] *= width
+                crop_bbox[:, 1] *= height
+                crop_bbox[:, 2] *= width
+                crop_bbox[:, 3] *= height
                sample['image'] = im
                sample['gt_bbox'] = crop_bbox
                sample['gt_class'] = crop_class
+                if 'gt_score' in sample:
                    sample['gt_score'] = crop_score
                if 'gt_keypoint' in sample.keys():
                    sample['gt_keypoint'] = gt_keypoints[0]

--- a/dygraph/ppdet/engine/callbacks.py
+++ b/dygraph/ppdet/engine/callbacks.py
@@ -17,6 +17,7 @@ from __future__ import division
 from __future__ import print_function
 import os
+import sys
 import datetime
 import paddle
@@ -169,3 +170,15 @@ class Checkpointer(Callback):
                else:
                    save_model(self.model.model, self.model.optimizer, save_dir,
                               save_name, epoch_id + 1)
+class WiferFaceEval(Callback):
+    def __init__(self, model):
+        super(WiferFaceEval, self).__init__(model)
+    def on_epoch_begin(self, status):
+        assert self.model.mode == 'eval', \
+            "WiferFaceEval can only be set during evaluation"
+        for metric in self.model._metrics:
+            metric.update(self.model.model)
+        sys.exit()
--- a/dygraph/ppdet/engine/trainer.py
+++ b/dygraph/ppdet/engine/trainer.py
@@ -31,10 +31,10 @@ from paddle.static import InputSpec
 from ppdet.core.workspace import create
 from ppdet.utils.checkpoint import load_weight, load_pretrain_weight
 from ppdet.utils.visualizer import visualize_results
-from ppdet.metrics import Metric, COCOMetric, VOCMetric, get_categories, get_infer_results
+from ppdet.metrics import Metric, COCOMetric, VOCMetric, WiderFaceMetric, get_categories, get_infer_results
 import ppdet.utils.stats as stats
-from .callbacks import Callback, ComposeCallback, LogPrinter, Checkpointer
+from .callbacks import Callback, ComposeCallback, LogPrinter, Checkpointer, WiferFaceEval
 from .export_utils import _dump_infer_config
 from ppdet.utils.logger import setup_logger
@@ -90,8 +90,6 @@ class Trainer(object):
        self.start_epoch = 0
        self.end_epoch = cfg.epoch
-        self._weights_loaded = False
        # initial default callbacks
        self._init_callbacks()
@@ -105,6 +103,8 @@ class Trainer(object):
            self._compose_callback = ComposeCallback(self._callbacks)
        elif self.mode == 'eval':
            self._callbacks = [LogPrinter(self)]
+            if self.cfg.metric == 'WiderFace':
+                self._callbacks.append(WiferFaceEval(self))
            self._compose_callback = ComposeCallback(self._callbacks)
        else:
            self._callbacks = []
@@ -128,6 +128,15 @@ class Trainer(object):
                    class_num=self.cfg.num_classes,
                    map_type=self.cfg.map_type)
            ]
+        elif self.cfg.metric == 'WiderFace':
+            multi_scale = self.cfg.multi_scale_eval if 'multi_scale_eval' in self.cfg else True
+            self._metrics = [
+                WiderFaceMetric(
+                    image_dir=os.path.join(self.dataset.dataset_dir,
+                                           self.dataset.image_dir),
+                    anno_file=self.dataset.get_anno(),
+                    multi_scale=multi_scale)
+            ]
        else:
            logger.warn("Metric not support for metric type {}".format(
                self.cfg.metric))
@@ -165,15 +174,10 @@ class Trainer(object):
                                 weight_type)
            logger.debug("Load {} weights {} to start training".format(
                weight_type, weights))
-        self._weights_loaded = True
    def train(self, validate=False):
        assert self.mode == 'train', "Model not in 'train' mode"
-        # if no given weights loaded, load backbone pretrain weights as default
-        if not self._weights_loaded:
-            self.load_weights(self.cfg.pretrain_weights)
        model = self.model
        if self.cfg.fleet:
            model = fleet.distributed_model(model)

--- a/dygraph/ppdet/metrics/category.py
+++ b/dygraph/ppdet/metrics/category.py
@@ -19,6 +19,7 @@ from __future__ import print_function
 import os
 from ppdet.data.source.voc import pascalvoc_label
+from ppdet.data.source.widerface import widerface_label
 from ppdet.utils.logger import setup_logger
 logger = setup_logger(__name__)
@@ -75,6 +76,9 @@ def get_categories(metric_type, anno_file=None):
            logger.warn("only default categories support for OID19")
        return _oid19_category()
+    elif metric_type.lower() == 'widerface':
+        return _widerface_category()
    else:
        raise ValueError("unknown metric type {}".format(metric_type))
@@ -274,6 +278,16 @@ def _vocall_category():
    return clsid2catid, catid2name
+def _widerface_category():
+    label_map = widerface_label()
+    label_map = sorted(label_map.items(), key=lambda x: x[1])
+    cats = [l[0] for l in label_map]
+    clsid2catid = {i: i for i in range(len(cats))}
+    catid2name = {i: name for i, name in enumerate(cats)}
+    return clsid2catid, catid2name
 def _oid19_category():
    clsid2catid = {k: k + 1 for k in range(500)}

--- a/dygraph/ppdet/metrics/metrics.py
+++ b/dygraph/ppdet/metrics/metrics.py
@@ -25,17 +25,26 @@ import numpy as np
 from .category import get_categories
 from .map_utils import prune_zero_padding, DetectionMAP
 from .coco_utils import get_infer_results, cocoapi_eval
+from .widerface_utils import face_eval_run
 from ppdet.utils.logger import setup_logger
 logger = setup_logger(__name__)
-__all__ = ['Metric', 'COCOMetric', 'VOCMetric', 'get_infer_results']
+__all__ = [
+    'Metric', 'COCOMetric', 'VOCMetric', 'WiderFaceMetric', 'get_infer_results'
+]
 class Metric(paddle.metric.Metric):
    def name(self):
        return self.__class__.__name__
+    def reset(self):
+        pass
+    def accumulate(self):
+        pass
    # paddle.metric.Metric defined :metch:`update`, :meth:`accumulate`
    # :metch:`reset`, in ppdet, we also need following 2 methods:
@@ -194,3 +203,21 @@ class VOCMetric(Metric):
    def get_results(self):
        self.detection_map.get_map()
+class WiderFaceMetric(Metric):
+    def __init__(self, image_dir, anno_file, multi_scale=True):
+        self.image_dir = image_dir
+        self.anno_file = anno_file
+        self.multi_scale = multi_scale
+        self.clsid2catid, self.catid2name = get_categories('widerface')
+    def update(self, model):
+        face_eval_run(
+            model,
+            self.image_dir,
+            self.anno_file,
+            pred_dir='output/pred',
+            eval_mode='widerface',
+            multi_scale=self.multi_scale)
--- a/dygraph/ppdet/metrics/widerface_utils.py
+++ b/dygraph/ppdet/metrics/widerface_utils.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
+import os
+import cv2
+import numpy as np
+from collections import OrderedDict
+import paddle
+from ppdet.utils.logger import setup_logger
+logger = setup_logger(__name__)
+__all__ = ['face_eval_run', 'lmk2out']
+def face_eval_run(model,
+                  image_dir,
+                  gt_file,
+                  pred_dir='output/pred',
+                  eval_mode='widerface',
+                  multi_scale=False):
+    # load ground truth files
+    with open(gt_file, 'r') as f:
+        gt_lines = f.readlines()
+    imid2path = []
+    pos_gt = 0
+    while pos_gt < len(gt_lines):
+        name_gt = gt_lines[pos_gt].strip('\n\t').split()[0]
+        imid2path.append(name_gt)
+        pos_gt += 1
+        n_gt = int(gt_lines[pos_gt].strip('\n\t').split()[0])
+        pos_gt += 1 + n_gt
+    logger.info('The ground truth file load {} images'.format(len(imid2path)))
+    dets_dist = OrderedDict()
+    for iter_id, im_path in enumerate(imid2path):
+        image_path = os.path.join(image_dir, im_path)
+        if eval_mode == 'fddb':
+            image_path += '.jpg'
+        assert os.path.exists(image_path)
+        image = cv2.imread(image_path)
+        image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
+        if multi_scale:
+            shrink, max_shrink = get_shrink(image.shape[0], image.shape[1])
+            det0 = detect_face(model, image, shrink)
+            det1 = flip_test(model, image, shrink)
+            [det2, det3] = multi_scale_test(model, image, max_shrink)
+            det4 = multi_scale_test_pyramid(model, image, max_shrink)
+            det = np.row_stack((det0, det1, det2, det3, det4))
+            dets = bbox_vote(det)
+        else:
+            dets = detect_face(model, image, 1)
+        if eval_mode == 'widerface':
+            save_widerface_bboxes(image_path, dets, pred_dir)
+        else:
+            dets_dist[im_path] = dets
+        if iter_id % 100 == 0:
+            logger.info('Test iter {}'.format(iter_id))
+    if eval_mode == 'fddb':
+        save_fddb_bboxes(dets_dist, pred_dir)
+    logger.info("Finish evaluation.")
+def detect_face(model, image, shrink):
+    image_shape = [image.shape[0], image.shape[1]]
+    if shrink != 1:
+        h, w = int(image_shape[0] * shrink), int(image_shape[1] * shrink)
+        image = cv2.resize(image, (w, h))
+        image_shape = [h, w]
+    img = face_img_process(image)
+    image_shape = np.asarray([image_shape])
+    scale_factor = np.asarray([[shrink, shrink]])
+    data = {
+        "image": paddle.to_tensor(
+            img, dtype='float32'),
+        "im_shape": paddle.to_tensor(
+            image_shape, dtype='float32'),
+        "scale_factor": paddle.to_tensor(
+            scale_factor, dtype='float32')
+    }
+    model.eval()
+    detection = model(data)
+    detection = detection['bbox'].numpy()
+    # layout: xmin, ymin, xmax. ymax, score
+    if np.prod(detection.shape) == 1:
+        logger.info("No face detected")
+        return np.array([[0, 0, 0, 0, 0]])
+    det_conf = detection[:, 1]
+    det_xmin = detection[:, 2]
+    det_ymin = detection[:, 3]
+    det_xmax = detection[:, 4]
+    det_ymax = detection[:, 5]
+    det = np.column_stack((det_xmin, det_ymin, det_xmax, det_ymax, det_conf))
+    return det
+def flip_test(model, image, shrink):
+    img = cv2.flip(image, 1)
+    det_f = detect_face(model, img, shrink)
+    det_t = np.zeros(det_f.shape)
+    img_width = image.shape[1]
+    det_t[:, 0] = img_width - det_f[:, 2]
+    det_t[:, 1] = det_f[:, 1]
+    det_t[:, 2] = img_width - det_f[:, 0]
+    det_t[:, 3] = det_f[:, 3]
+    det_t[:, 4] = det_f[:, 4]
+    return det_t
+def multi_scale_test(model, image, max_shrink):
+    # Shrink detecting is only used to detect big faces
+    st = 0.5 if max_shrink >= 0.75 else 0.5 * max_shrink
+    det_s = detect_face(model, image, st)
+    index = np.where(
+        np.maximum(det_s[:, 2] - det_s[:, 0] + 1, det_s[:, 3] - det_s[:, 1] + 1)
+        > 30)[0]
+    det_s = det_s[index, :]
+    # Enlarge one times
+    bt = min(2, max_shrink) if max_shrink > 1 else (st + max_shrink) / 2
+    det_b = detect_face(model, image, bt)
+    # Enlarge small image x times for small faces
+    if max_shrink > 2:
+        bt *= 2
+        while bt < max_shrink:
+            det_b = np.row_stack((det_b, detect_face(model, image, bt)))
+            bt *= 2
+        det_b = np.row_stack((det_b, detect_face(model, image, max_shrink)))
+    # Enlarged images are only used to detect small faces.
+    if bt > 1:
+        index = np.where(
+            np.minimum(det_b[:, 2] - det_b[:, 0] + 1,
+                       det_b[:, 3] - det_b[:, 1] + 1) < 100)[0]
+        det_b = det_b[index, :]
+    # Shrinked images are only used to detect big faces.
+    else:
+        index = np.where(
+            np.maximum(det_b[:, 2] - det_b[:, 0] + 1,
+                       det_b[:, 3] - det_b[:, 1] + 1) > 30)[0]
+        det_b = det_b[index, :]
+    return det_s, det_b
+def multi_scale_test_pyramid(model, image, max_shrink):
+    # Use image pyramids to detect faces
+    det_b = detect_face(model, image, 0.25)
+    index = np.where(
+        np.maximum(det_b[:, 2] - det_b[:, 0] + 1, det_b[:, 3] - det_b[:, 1] + 1)
+        > 30)[0]
+    det_b = det_b[index, :]
+    st = [0.75, 1.25, 1.5, 1.75]
+    for i in range(len(st)):
+        if st[i] <= max_shrink:
+            det_temp = detect_face(model, image, st[i])
+            # Enlarged images are only used to detect small faces.
+            if st[i] > 1:
+                index = np.where(
+                    np.minimum(det_temp[:, 2] - det_temp[:, 0] + 1,
+                               det_temp[:, 3] - det_temp[:, 1] + 1) < 100)[0]
+                det_temp = det_temp[index, :]
+            # Shrinked images are only used to detect big faces.
+            else:
+                index = np.where(
+                    np.maximum(det_temp[:, 2] - det_temp[:, 0] + 1,
+                               det_temp[:, 3] - det_temp[:, 1] + 1) > 30)[0]
+                det_temp = det_temp[index, :]
+            det_b = np.row_stack((det_b, det_temp))
+    return det_b
+def to_chw(image):
+    """
+    Transpose image from HWC to CHW.
+    Args:
+        image (np.array): an image with HWC layout.
+    """
+    # HWC to CHW
+    if len(image.shape) == 3:
+        image = np.swapaxes(image, 1, 2)
+        image = np.swapaxes(image, 1, 0)
+    return image
+def face_img_process(image,
+                     mean=[104., 117., 123.],
+                     std=[127.502231, 127.502231, 127.502231]):
+    img = np.array(image)
+    img = to_chw(img)
+    img = img.astype('float32')
+    img -= np.array(mean)[:, np.newaxis, np.newaxis].astype('float32')
+    img /= np.array(std)[:, np.newaxis, np.newaxis].astype('float32')
+    img = [img]
+    img = np.array(img)
+    return img
+def get_shrink(height, width):
+    """
+    Args:
+        height (int): image height.
+        width (int): image width.
+    """
+    # avoid out of memory
+    max_shrink_v1 = (0x7fffffff / 577.0 / (height * width))**0.5
+    max_shrink_v2 = ((678 * 1024 * 2.0 * 2.0) / (height * width))**0.5
+    def get_round(x, loc):
+        str_x = str(x)
+        if '.' in str_x:
+            str_before, str_after = str_x.split('.')
+            len_after = len(str_after)
+            if len_after >= 3:
+                str_final = str_before + '.' + str_after[0:loc]
+                return float(str_final)
+            else:
+                return x
+    max_shrink = get_round(min(max_shrink_v1, max_shrink_v2), 2) - 0.3
+    if max_shrink >= 1.5 and max_shrink < 2:
+        max_shrink = max_shrink - 0.1
+    elif max_shrink >= 2 and max_shrink < 3:
+        max_shrink = max_shrink - 0.2
+    elif max_shrink >= 3 and max_shrink < 4:
+        max_shrink = max_shrink - 0.3
+    elif max_shrink >= 4 and max_shrink < 5:
+        max_shrink = max_shrink - 0.4
+    elif max_shrink >= 5:
+        max_shrink = max_shrink - 0.5
+    elif max_shrink <= 0.1:
+        max_shrink = 0.1
+    shrink = max_shrink if max_shrink < 1 else 1
+    return shrink, max_shrink
+def bbox_vote(det):
+    order = det[:, 4].ravel().argsort()[::-1]
+    det = det[order, :]
+    if det.shape[0] == 0:
+        dets = np.array([[10, 10, 20, 20, 0.002]])
+        det = np.empty(shape=[0, 5])
+    while det.shape[0] > 0:
+        # IOU
+        area = (det[:, 2] - det[:, 0] + 1) * (det[:, 3] - det[:, 1] + 1)
+        xx1 = np.maximum(det[0, 0], det[:, 0])
+        yy1 = np.maximum(det[0, 1], det[:, 1])
+        xx2 = np.minimum(det[0, 2], det[:, 2])
+        yy2 = np.minimum(det[0, 3], det[:, 3])
+        w = np.maximum(0.0, xx2 - xx1 + 1)
+        h = np.maximum(0.0, yy2 - yy1 + 1)
+        inter = w * h
+        o = inter / (area[0] + area[:] - inter)
+        # nms
+        merge_index = np.where(o >= 0.3)[0]
+        det_accu = det[merge_index, :]
+        det = np.delete(det, merge_index, 0)
+        if merge_index.shape[0] <= 1:
+            if det.shape[0] == 0:
+                try:
+                    dets = np.row_stack((dets, det_accu))
+                except:
+                    dets = det_accu
+            continue
+        det_accu[:, 0:4] = det_accu[:, 0:4] * np.tile(det_accu[:, -1:], (1, 4))
+        max_score = np.max(det_accu[:, 4])
+        det_accu_sum = np.zeros((1, 5))
+        det_accu_sum[:, 0:4] = np.sum(det_accu[:, 0:4],
+                                      axis=0) / np.sum(det_accu[:, -1:])
+        det_accu_sum[:, 4] = max_score
+        try:
+            dets = np.row_stack((dets, det_accu_sum))
+        except:
+            dets = det_accu_sum
+    dets = dets[0:750, :]
+    keep_index = np.where(dets[:, 4] >= 0.01)[0]
+    dets = dets[keep_index, :]
+    return dets
+def save_widerface_bboxes(image_path, bboxes_scores, output_dir):
+    image_name = image_path.split('/')[-1]
+    image_class = image_path.split('/')[-2]
+    odir = os.path.join(output_dir, image_class)
+    if not os.path.exists(odir):
+        os.makedirs(odir)
+    ofname = os.path.join(odir, '%s.txt' % (image_name[:-4]))
+    f = open(ofname, 'w')
+    f.write('{:s}\n'.format(image_class + '/' + image_name))
+    f.write('{:d}\n'.format(bboxes_scores.shape[0]))
+    for box_score in bboxes_scores:
+        xmin, ymin, xmax, ymax, score = box_score
+        f.write('{:.1f} {:.1f} {:.1f} {:.1f} {:.3f}\n'.format(xmin, ymin, (
+            xmax - xmin + 1), (ymax - ymin + 1), score))
+    f.close()
+    logger.info("The predicted result is saved as {}".format(ofname))
+def save_fddb_bboxes(bboxes_scores,
+                     output_dir,
+                     output_fname='pred_fddb_res.txt'):
+    if not os.path.exists(output_dir):
+        os.makedirs(output_dir)
+    predict_file = os.path.join(output_dir, output_fname)
+    f = open(predict_file, 'w')
+    for image_path, dets in bboxes_scores.iteritems():
+        f.write('{:s}\n'.format(image_path))
+        f.write('{:d}\n'.format(dets.shape[0]))
+        for box_score in dets:
+            xmin, ymin, xmax, ymax, score = box_score
+            width, height = xmax - xmin, ymax - ymin
+            f.write('{:.1f} {:.1f} {:.1f} {:.1f} {:.3f}\n'
+                    .format(xmin, ymin, width, height, score))
+    logger.info("The predicted result is saved as {}".format(predict_file))
+    return predict_file
+def lmk2out(results, is_bbox_normalized=False):
+    """
+    Args:
+        results: request a dict, should include: `landmark`, `im_id`,
+                 if is_bbox_normalized=True, also need `im_shape`.
+        is_bbox_normalized: whether or not landmark is normalized.
+    """
+    xywh_res = []
+    for t in results:
+        bboxes = t['bbox'][0]
+        lengths = t['bbox'][1][0]
+        im_ids = np.array(t['im_id'][0]).flatten()
+        if bboxes.shape == (1, 1) or bboxes is None:
+            continue
+        face_index = t['face_index'][0]
+        prior_box = t['prior_boxes'][0]
+        predict_lmk = t['landmark'][0]
+        prior = np.reshape(prior_box, (-1, 4))
+        predictlmk = np.reshape(predict_lmk, (-1, 10))
+        k = 0
+        for a in range(len(lengths)):
+            num = lengths[a]
+            im_id = int(im_ids[a])
+            for i in range(num):
+                score = bboxes[k][1]
+                theindex = face_index[i][0]
+                me_prior = prior[theindex, :]
+                lmk_pred = predictlmk[theindex, :]
+                prior_w = me_prior[2] - me_prior[0]
+                prior_h = me_prior[3] - me_prior[1]
+                prior_w_center = (me_prior[2] + me_prior[0]) / 2
+                prior_h_center = (me_prior[3] + me_prior[1]) / 2
+                lmk_decode = np.zeros((10))
+                for j in [0, 2, 4, 6, 8]:
+                    lmk_decode[j] = lmk_pred[j] * 0.1 * prior_w + prior_w_center
+                for j in [1, 3, 5, 7, 9]:
+                    lmk_decode[j] = lmk_pred[j] * 0.1 * prior_h + prior_h_center
+                im_shape = t['im_shape'][0][a].tolist()
+                image_h, image_w = int(im_shape[0]), int(im_shape[1])
+                if is_bbox_normalized:
+                    lmk_decode = lmk_decode * np.array([
+                        image_w, image_h, image_w, image_h, image_w, image_h,
+                        image_w, image_h, image_w, image_h
+                    ])
+                lmk_res = {
+                    'image_id': im_id,
+                    'landmark': lmk_decode,
+                    'score': score,
+                }
+                xywh_res.append(lmk_res)
+                k += 1
+    return xywh_res
--- a/dygraph/ppdet/modeling/architectures/ssd.py
+++ b/dygraph/ppdet/modeling/architectures/ssd.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

--- a/dygraph/ppdet/modeling/backbones/__init__.py
+++ b/dygraph/ppdet/modeling/backbones/__init__.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 . import vgg
 from . import resnet
 from . import darknet
 from . import mobilenet_v1
 from . import mobilenet_v3
 from . import hrnet
+from . import blazenet
 from .vgg import *
 from .resnet import *
@@ -11,3 +26,4 @@ from .darknet import *
 from .mobilenet_v1 import *
 from .mobilenet_v3 import *
 from .hrnet import *
+from .blazenet import *
--- a/dygraph/ppdet/modeling/backbones/blazenet.py
+++ b/dygraph/ppdet/modeling/backbones/blazenet.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
+from paddle import ParamAttr
+from paddle.regularizer import L2Decay
+from paddle.nn.initializer import KaimingNormal
+from ppdet.core.workspace import register, serializable
+from numbers import Integral
+from ..shape_spec import ShapeSpec
+__all__ = ['BlazeNet']
+class ConvBNLayer(nn.Layer):
+    def __init__(self,
+                 in_channels,
+                 out_channels,
+                 kernel_size,
+                 stride,
+                 padding,
+                 num_groups=1,
+                 act='relu',
+                 conv_lr=0.1,
+                 conv_decay=0.,
+                 norm_decay=0.,
+                 norm_type='bn',
+                 name=None):
+        super(ConvBNLayer, self).__init__()
+        self.act = act
+        self._conv = nn.Conv2D(
+            in_channels,
+            out_channels,
+            kernel_size=kernel_size,
+            stride=stride,
+            padding=padding,
+            groups=num_groups,
+            weight_attr=ParamAttr(
+                learning_rate=conv_lr,
+                initializer=KaimingNormal(),
+                name=name + "_weights"),
+            bias_attr=False)
+        param_attr = ParamAttr(name=name + "_bn_scale")
+        bias_attr = ParamAttr(name=name + "_bn_offset")
+        if norm_type == 'sync_bn':
+            self._batch_norm = nn.SyncBatchNorm(
+                out_channels, weight_attr=param_attr, bias_attr=bias_attr)
+        else:
+            self._batch_norm = nn.BatchNorm(
+                out_channels,
+                act=None,
+                param_attr=param_attr,
+                bias_attr=bias_attr,
+                use_global_stats=False,
+                moving_mean_name=name + '_bn_mean',
+                moving_variance_name=name + '_bn_variance')
+    def forward(self, x):
+        x = self._conv(x)
+        x = self._batch_norm(x)
+        if self.act == "relu":
+            x = F.relu(x)
+        elif self.act == "relu6":
+            x = F.relu6(x)
+        return x
+class BlazeBlock(nn.Layer):
+    def __init__(self,
+                 in_channels,
+                 out_channels1,
+                 out_channels2,
+                 double_channels=None,
+                 stride=1,
+                 use_5x5kernel=True,
+                 name=None):
+        super(BlazeBlock, self).__init__()
+        assert stride in [1, 2]
+        self.use_pool = not stride == 1
+        self.use_double_block = double_channels is not None
+        self.conv_dw = []
+        if use_5x5kernel:
+            self.conv_dw.append(
+                self.add_sublayer(
+                    name + "1_dw",
+                    ConvBNLayer(
+                        in_channels=in_channels,
+                        out_channels=out_channels1,
+                        kernel_size=5,
+                        stride=stride,
+                        padding=2,
+                        num_groups=out_channels1,
+                        name=name + "1_dw")))
+        else:
+            self.conv_dw.append(
+                self.add_sublayer(
+                    name + "1_dw_1",
+                    ConvBNLayer(
+                        in_channels=in_channels,
+                        out_channels=out_channels1,
+                        kernel_size=3,
+                        stride=1,
+                        padding=1,
+                        num_groups=out_channels1,
+                        name=name + "1_dw_1")))
+            self.conv_dw.append(
+                self.add_sublayer(
+                    name + "1_dw_2",
+                    ConvBNLayer(
+                        in_channels=out_channels1,
+                        out_channels=out_channels1,
+                        kernel_size=3,
+                        stride=stride,
+                        padding=1,
+                        num_groups=out_channels1,
+                        name=name + "1_dw_2")))
+        act = 'relu' if self.use_double_block else None
+        self.conv_pw = ConvBNLayer(
+            in_channels=out_channels1,
+            out_channels=out_channels2,
+            kernel_size=1,
+            stride=1,
+            padding=0,
+            act=act,
+            name=name + "1_sep")
+        if self.use_double_block:
+            self.conv_dw2 = []
+            if use_5x5kernel:
+                self.conv_dw2.append(
+                    self.add_sublayer(
+                        name + "2_dw",
+                        ConvBNLayer(
+                            in_channels=out_channels2,
+                            out_channels=out_channels2,
+                            kernel_size=5,
+                            stride=1,
+                            padding=2,
+                            num_groups=out_channels2,
+                            name=name + "2_dw")))
+            else:
+                self.conv_dw2.append(
+                    self.add_sublayer(
+                        name + "2_dw_1",
+                        ConvBNLayer(
+                            in_channels=out_channels2,
+                            out_channels=out_channels2,
+                            kernel_size=3,
+                            stride=1,
+                            padding=1,
+                            num_groups=out_channels2,
+                            name=name + "1_dw_1")))
+                self.conv_dw2.append(
+                    self.add_sublayer(
+                        name + "2_dw_2",
+                        ConvBNLayer(
+                            in_channels=out_channels2,
+                            out_channels=out_channels2,
+                            kernel_size=3,
+                            stride=1,
+                            padding=1,
+                            num_groups=out_channels2,
+                            name=name + "2_dw_2")))
+            self.conv_pw2 = ConvBNLayer(
+                in_channels=out_channels2,
+                out_channels=double_channels,
+                kernel_size=1,
+                stride=1,
+                padding=0,
+                name=name + "2_sep")
+        # shortcut
+        if self.use_pool:
+            shortcut_channel = double_channels or out_channels2
+            self._shortcut = []
+            self._shortcut.append(
+                self.add_sublayer(
+                    name + '_shortcut_pool',
+                    nn.MaxPool2D(
+                        kernel_size=stride, stride=stride, ceil_mode=True)))
+            self._shortcut.append(
+                self.add_sublayer(
+                    name + '_shortcut_conv',
+                    ConvBNLayer(
+                        in_channels=in_channels,
+                        out_channels=shortcut_channel,
+                        kernel_size=1,
+                        stride=1,
+                        padding=0,
+                        name="shortcut" + name)))
+    def forward(self, x):
+        y = x
+        for conv_dw_block in self.conv_dw:
+            y = conv_dw_block(y)
+        y = self.conv_pw(y)
+        if self.use_double_block:
+            for conv_dw2_block in self.conv_dw2:
+                y = conv_dw2_block(y)
+            y = self.conv_pw2(y)
+        if self.use_pool:
+            for shortcut in self._shortcut:
+                x = shortcut(x)
+        return F.relu(paddle.add(x, y))
+@register
+@serializable
+class BlazeNet(nn.Layer):
+    """
+    BlazeFace, see https://arxiv.org/abs/1907.05047
+    Args:
+        blaze_filters (list): number of filter for each blaze block.
+        double_blaze_filters (list): number of filter for each double_blaze block.
+        use_5x5kernel (bool): whether or not filter size is 5x5 in depth-wise conv.
+    """
+    def __init__(
+            self,
+            blaze_filters=[[24, 24], [24, 24], [24, 48, 2], [48, 48], [48, 48]],
+            double_blaze_filters=[[48, 24, 96, 2], [96, 24, 96], [96, 24, 96],
+                                  [96, 24, 96, 2], [96, 24, 96], [96, 24, 96]],
+            use_5x5kernel=True):
+        super(BlazeNet, self).__init__()
+        conv1_num_filters = blaze_filters[0][0]
+        self.conv1 = ConvBNLayer(
+            in_channels=3,
+            out_channels=conv1_num_filters,
+            kernel_size=3,
+            stride=2,
+            padding=1,
+            name="conv1")
+        in_channels = conv1_num_filters
+        self.blaze_block = []
+        self._out_channels = []
+        for k, v in enumerate(blaze_filters):
+            assert len(v) in [2, 3], \
+                "blaze_filters {} not in [2, 3]"
+            if len(v) == 2:
+                self.blaze_block.append(
+                    self.add_sublayer(
+                        'blaze_{}'.format(k),
+                        BlazeBlock(
+                            in_channels,
+                            v[0],
+                            v[1],
+                            use_5x5kernel=use_5x5kernel,
+                            name='blaze_{}'.format(k))))
+            elif len(v) == 3:
+                self.blaze_block.append(
+                    self.add_sublayer(
+                        'blaze_{}'.format(k),
+                        BlazeBlock(
+                            in_channels,
+                            v[0],
+                            v[1],
+                            stride=v[2],
+                            use_5x5kernel=use_5x5kernel,
+                            name='blaze_{}'.format(k))))
+            in_channels = v[1]
+        for k, v in enumerate(double_blaze_filters):
+            assert len(v) in [3, 4], \
+                "blaze_filters {} not in [3, 4]"
+            if len(v) == 3:
+                self.blaze_block.append(
+                    self.add_sublayer(
+                        'double_blaze_{}'.format(k),
+                        BlazeBlock(
+                            in_channels,
+                            v[0],
+                            v[1],
+                            double_channels=v[2],
+                            use_5x5kernel=use_5x5kernel,
+                            name='double_blaze_{}'.format(k))))
+            elif len(v) == 4:
+                self.blaze_block.append(
+                    self.add_sublayer(
+                        'double_blaze_{}'.format(k),
+                        BlazeBlock(
+                            in_channels,
+                            v[0],
+                            v[1],
+                            double_channels=v[2],
+                            stride=v[3],
+                            use_5x5kernel=use_5x5kernel,
+                            name='double_blaze_{}'.format(k))))
+            in_channels = v[2]
+            self._out_channels.append(in_channels)
+    def forward(self, inputs):
+        outs = []
+        y = self.conv1(inputs['image'])
+        for block in self.blaze_block:
+            y = block(y)
+            outs.append(y)
+        return [outs[-4], outs[-1]]
+    @property
+    def out_shape(self):
+        return [
+            ShapeSpec(channels=c)
+            for c in [self._out_channels[-4], self._out_channels[-1]]
+        ]
--- a/dygraph/ppdet/modeling/heads/__init__.py
+++ b/dygraph/ppdet/modeling/heads/__init__.py
@@ -21,6 +21,7 @@ from . import fcos_head
 from . import solov2_head
 from . import ttf_head
 from . import cascade_head
+from . import face_head
 from .bbox_head import *
 from .mask_head import *
@@ -31,3 +32,4 @@ from .fcos_head import *
 from .solov2_head import *
 from .ttf_head import *
 from .cascade_head import *
+from .face_head import *
--- a/dygraph/ppdet/modeling/heads/face_head.py
+++ b/dygraph/ppdet/modeling/heads/face_head.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.
+import paddle
+import paddle.nn as nn
+import paddle.nn.functional as F
+from ppdet.core.workspace import register
+from paddle.regularizer import L2Decay
+from paddle import ParamAttr
+from ..layers import AnchorGeneratorSSD
+@register
+class FaceHead(nn.Layer):
+    """
+    Head block for Face detection network
+    Args:
+        num_classes (int): Number of output classes.
+        in_channels (int): Number of input channels.
+        anchor_generator(object): instance of anchor genertor method.
+        kernel_size (int): kernel size of Conv2D in FaceHead.
+        padding (int): padding of Conv2D in FaceHead.
+        conv_decay (float): norm_decay (float): weight decay for conv layer weights.
+        loss (object): loss of face detection model.
+    """
+    __shared__ = ['num_classes']
+    __inject__ = ['anchor_generator', 'loss']
+    def __init__(self,
+                 num_classes=80,
+                 in_channels=(96, 96),
+                 anchor_generator=AnchorGeneratorSSD().__dict__,
+                 kernel_size=3,
+                 padding=1,
+                 conv_decay=0.,
+                 loss='SSDLoss'):
+        super(FaceHead, self).__init__()
+        # add background class
+        self.num_classes = num_classes + 1
+        self.in_channels = in_channels
+        self.anchor_generator = anchor_generator
+        self.loss = loss
+        if isinstance(anchor_generator, dict):
+            self.anchor_generator = AnchorGeneratorSSD(**anchor_generator)
+        self.num_priors = self.anchor_generator.num_priors
+        self.box_convs = []
+        self.score_convs = []
+        for i, num_prior in enumerate(self.num_priors):
+            box_conv_name = "boxes{}".format(i)
+            box_conv = self.add_sublayer(
+                box_conv_name,
+                nn.Conv2D(
+                    in_channels=in_channels[i],
+                    out_channels=num_prior * 4,
+                    kernel_size=kernel_size,
+                    padding=padding))
+            self.box_convs.append(box_conv)
+            score_conv_name = "scores{}".format(i)
+            score_conv = self.add_sublayer(
+                score_conv_name,
+                nn.Conv2D(
+                    in_channels=in_channels[i],
+                    out_channels=num_prior * self.num_classes,
+                    kernel_size=kernel_size,
+                    padding=padding))
+            self.score_convs.append(score_conv)
+    @classmethod
+    def from_config(cls, cfg, input_shape):
+        return {'in_channels': [i.channels for i in input_shape], }
+    def forward(self, feats, image, gt_bbox=None, gt_class=None):
+        box_preds = []
+        cls_scores = []
+        prior_boxes = []
+        for feat, box_conv, score_conv in zip(feats, self.box_convs,
+                                              self.score_convs):
+            box_pred = box_conv(feat)
+            box_pred = paddle.transpose(box_pred, [0, 2, 3, 1])
+            box_pred = paddle.reshape(box_pred, [0, -1, 4])
+            box_preds.append(box_pred)
+            cls_score = score_conv(feat)
+            cls_score = paddle.transpose(cls_score, [0, 2, 3, 1])
+            cls_score = paddle.reshape(cls_score, [0, -1, self.num_classes])
+            cls_scores.append(cls_score)
+        prior_boxes = self.anchor_generator(feats, image)
+        if self.training:
+            return self.get_loss(box_preds, cls_scores, gt_bbox, gt_class,
+                                 prior_boxes)
+        else:
+            return (box_preds, cls_scores), prior_boxes
+    def get_loss(self, boxes, scores, gt_bbox, gt_class, prior_boxes):
+        return self.loss(boxes, scores, gt_bbox, gt_class, prior_boxes)
--- a/dygraph/ppdet/modeling/heads/ssd_head.py
+++ b/dygraph/ppdet/modeling/heads/ssd_head.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
 import paddle.nn.functional as F

--- a/dygraph/ppdet/modeling/layers.py
+++ b/dygraph/ppdet/modeling/layers.py
@@ -271,6 +271,10 @@ class AnchorGeneratorSSD(object):
        self.num_priors = []
        for aspect_ratio, min_size, max_size in zip(
                aspect_ratios, self.min_sizes, self.max_sizes):
+            if isinstance(min_size, (list, tuple)):
+                self.num_priors.append(
+                    len(_to_list(min_size)) + len(_to_list(max_size)))
+            else:
                self.num_priors.append((len(aspect_ratio) * 2 + 1) * len(
                    _to_list(min_size)) + len(_to_list(max_size)))

--- a/dygraph/ppdet/utils/checkpoint.py
+++ b/dygraph/ppdet/utils/checkpoint.py
@@ -136,8 +136,10 @@ def load_pretrain_weight(model,
    path = _strip_postfix(pretrain_weight)
    if not (os.path.isdir(path) or os.path.isfile(path) or
            os.path.exists(path + '.pdparams')):
-        raise ValueError("Model pretrain path {} does not "
+        raise ValueError("Model pretrain path `{}` does not exists. "
-                         "exists.".format(path))
+                         "If you don't want to load pretrain model, "
+                         "please delete `pretrain_weights` field in "
+                         "config file.".format(path))
    model_dict = model.state_dict()

--- a/dygraph/tools/train.py
+++ b/dygraph/tools/train.py
@@ -91,7 +91,7 @@ def run(FLAGS, cfg):
    trainer = Trainer(cfg, mode='train')
    # load weights
-    if not FLAGS.slim_config:
+    if not FLAGS.slim_config and 'pretrain_weights' in cfg and cfg.pretrain_weights:
        trainer.load_weights(cfg.pretrain_weights, FLAGS.weight_type)
    # training