import os import copy from collections import OrderedDict import cv2 import paddle import paddle.nn as nn import numpy as np from paddlehub.module.module import moduleinfo from paddlehub.process.transforms import ResizeScaling, PadDownRight, Normalize, RemovePadding, GetPeak, Connection, DrawPose, Candidate @moduleinfo(name="openpose_body_estimation", type="CV/image_editing", author="paddlepaddle", author_email="", summary="Openpose_body_estimation is a body pose estimation model based on Realtime Multi-Person 2D Pose \ Estimation using Part Affinity Fields.", version="1.0.0") class BodyposeModel(nn.Layer): """BodyposeModel Args: load_checkpoint(str): Checkpoint save path, default is None. visualization (bool): Whether to save the estimation result. Default is True. """ def __init__(self, load_checkpoint: str = None, visualization: bool = True): super(BodyposeModel, self).__init__() self.resize_func = ResizeScaling() self.pad_func = PadDownRight() self.norm_func = Normalize(std=[1, 1, 1]) self.remove_pad = RemovePadding() self.get_peak = GetPeak() self.get_connection = Connection() self.get_candidate = Candidate() self.draw_pose = DrawPose() self.visualization = visualization no_relu_layers = ['conv5_5_CPM_L1', 'conv5_5_CPM_L2', 'Mconv7_stage2_L1', \ 'Mconv7_stage2_L2', 'Mconv7_stage3_L1', 'Mconv7_stage3_L2', \ 'Mconv7_stage4_L1', 'Mconv7_stage4_L2', 'Mconv7_stage5_L1', \ 'Mconv7_stage5_L2', 'Mconv7_stage6_L1', 'Mconv7_stage6_L1'] blocks = {} block0 = OrderedDict([('conv1_1', [3, 64, 3, 1, 1]), ('conv1_2', [64, 64, 3, 1, 1]), ('pool1_stage1', [2, 2, 0]), ('conv2_1', [64, 128, 3, 1, 1]), ('conv2_2', [128, 128, 3, 1, 1]), ('pool2_stage1', [2, 2, 0]), ('conv3_1', [128, 256, 3, 1, 1]), ('conv3_2', [256, 256, 3, 1, 1]), ('conv3_3', [256, 256, 3, 1, 1]), ('conv3_4', [256, 256, 3, 1, 1]), ('pool3_stage1', [2, 2, 0]), ('conv4_1', [256, 512, 3, 1, 1]), ('conv4_2', [512, 512, 3, 1, 1]), ('conv4_3_CPM', [512, 256, 3, 1, 1]), ('conv4_4_CPM', [256, 128, 3, 1, 1])]) block1_1 = OrderedDict([('conv5_1_CPM_L1', [128, 128, 3, 1, 1]), ('conv5_2_CPM_L1', [128, 128, 3, 1, 1]), ('conv5_3_CPM_L1', [128, 128, 3, 1, 1]), ('conv5_4_CPM_L1', [128, 512, 1, 1, 0]), ('conv5_5_CPM_L1', [512, 38, 1, 1, 0])]) block1_2 = OrderedDict([('conv5_1_CPM_L2', [128, 128, 3, 1, 1]), ('conv5_2_CPM_L2', [128, 128, 3, 1, 1]), ('conv5_3_CPM_L2', [128, 128, 3, 1, 1]), ('conv5_4_CPM_L2', [128, 512, 1, 1, 0]), ('conv5_5_CPM_L2', [512, 19, 1, 1, 0])]) blocks['block1_1'] = block1_1 blocks['block1_2'] = block1_2 self.model0 = self.make_layers(block0, no_relu_layers) for i in range(2, 7): blocks['block%d_1' % i] = OrderedDict([('Mconv1_stage%d_L1' % i, [185, 128, 7, 1, 3]), ('Mconv2_stage%d_L1' % i, [128, 128, 7, 1, 3]), ('Mconv3_stage%d_L1' % i, [128, 128, 7, 1, 3]), ('Mconv4_stage%d_L1' % i, [128, 128, 7, 1, 3]), ('Mconv5_stage%d_L1' % i, [128, 128, 7, 1, 3]), ('Mconv6_stage%d_L1' % i, [128, 128, 1, 1, 0]), ('Mconv7_stage%d_L1' % i, [128, 38, 1, 1, 0])]) blocks['block%d_2' % i] = OrderedDict([('Mconv1_stage%d_L2' % i, [185, 128, 7, 1, 3]), ('Mconv2_stage%d_L2' % i, [128, 128, 7, 1, 3]), ('Mconv3_stage%d_L2' % i, [128, 128, 7, 1, 3]), ('Mconv4_stage%d_L2' % i, [128, 128, 7, 1, 3]), ('Mconv5_stage%d_L2' % i, [128, 128, 7, 1, 3]), ('Mconv6_stage%d_L2' % i, [128, 128, 1, 1, 0]), ('Mconv7_stage%d_L2' % i, [128, 19, 1, 1, 0])]) for k in blocks.keys(): blocks[k] = self.make_layers(blocks[k], no_relu_layers) self.model1_1 = blocks['block1_1'] self.model2_1 = blocks['block2_1'] self.model3_1 = blocks['block3_1'] self.model4_1 = blocks['block4_1'] self.model5_1 = blocks['block5_1'] self.model6_1 = blocks['block6_1'] self.model1_2 = blocks['block1_2'] self.model2_2 = blocks['block2_2'] self.model3_2 = blocks['block3_2'] self.model4_2 = blocks['block4_2'] self.model5_2 = blocks['block5_2'] self.model6_2 = blocks['block6_2'] if load_checkpoint is not None: model_dict = paddle.load(load_checkpoint)[0] self.set_dict(model_dict) print("load custom checkpoint success") else: checkpoint = os.path.join(self.directory, 'body_estimation.pdparams') if not os.path.exists(checkpoint): os.system( 'wget https://bj.bcebos.com/paddlehub/model/image/keypoint_detection/body_estimation.pdparams -O ' + checkpoint) model_dict = paddle.load(checkpoint)[0] self.set_dict(model_dict) print("load pretrained checkpoint success") def make_layers(self, block: dict, no_relu_layers: list): layers = [] for layer_name, v in block.items(): if 'pool' in layer_name: layer = nn.MaxPool2d(kernel_size=v[0], stride=v[1], padding=v[2]) layers.append((layer_name, layer)) else: conv2d = nn.Conv2d(in_channels=v[0], out_channels=v[1], kernel_size=v[2], stride=v[3], padding=v[4]) layers.append((layer_name, conv2d)) if layer_name not in no_relu_layers: layers.append(('relu_' + layer_name, nn.ReLU())) layers = tuple(layers) return nn.Sequential(*layers) def transform(self, orgimg: np.ndarray, scale_search: float = 0.5): process = self.resize_func(orgimg, scale_search) imageToTest_padded, pad = self.pad_func(process) process = self.norm_func(imageToTest_padded) process = np.ascontiguousarray(np.transpose(process[:, :, :, np.newaxis], (3, 2, 0, 1))).astype("float32") return process, imageToTest_padded, pad def forward(self, x: paddle.Tensor): out1 = self.model0(x) out1_1 = self.model1_1(out1) out1_2 = self.model1_2(out1) out2 = paddle.concat([out1_1, out1_2, out1], 1) out2_1 = self.model2_1(out2) out2_2 = self.model2_2(out2) out3 = paddle.concat([out2_1, out2_2, out1], 1) out3_1 = self.model3_1(out3) out3_2 = self.model3_2(out3) out4 = paddle.concat([out3_1, out3_2, out1], 1) out4_1 = self.model4_1(out4) out4_2 = self.model4_2(out4) out5 = paddle.concat([out4_1, out4_2, out1], 1) out5_1 = self.model5_1(out5) out5_2 = self.model5_2(out5) out6 = paddle.concat([out5_1, out5_2, out1], 1) out6_1 = self.model6_1(out6) out6_2 = self.model6_2(out6) return out6_1, out6_2 def predict(self, img_path: str, save_path: str = "result"): orgImg = cv2.imread(img_path) data, imageToTest_padded, pad = self.transform(orgImg) Mconv7_stage6_L1, Mconv7_stage6_L2 = self.forward(paddle.to_tensor(data)) Mconv7_stage6_L1 = Mconv7_stage6_L1.numpy() Mconv7_stage6_L2 = Mconv7_stage6_L2.numpy() heatmap_avg = self.remove_pad(Mconv7_stage6_L2, imageToTest_padded, orgImg, pad) paf_avg = self.remove_pad(Mconv7_stage6_L1, imageToTest_padded, orgImg, pad) all_peaks = self.get_peak(heatmap_avg) connection_all, special_k = self.get_connection(all_peaks, paf_avg, orgImg) candidate, subset = self.get_candidate(all_peaks, connection_all, special_k) if self.visualization: canvas = copy.deepcopy(orgImg) canvas = self.draw_pose(canvas, candidate, subset) if not os.path.exists(save_path): os.mkdir(save_path) save_path = os.path.join(save_path, img_path.rsplit("/", 1)[-1]) cv2.imwrite(save_path, canvas) return candidate, subset if __name__ == "__main__": import numpy as np paddle.disable_static() model = BodyposeModel() model.eval() out1, out2 = model.predict("demo.jpg") print(out1.shape)