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| import torch | |
| import torch.nn as nn | |
| from torch.nn import functional as F | |
| from nets.smpler_x import PositionNet, HandRotationNet, FaceRegressor, BoxNet, HandRoI, BodyRotationNet | |
| from nets.loss import CoordLoss, ParamLoss, CELoss | |
| from utils.human_models import smpl_x | |
| from utils.transforms import rot6d_to_axis_angle, restore_bbox | |
| from config import cfg | |
| import math | |
| import copy | |
| from mmpose.models import build_posenet | |
| from mmengine.config import Config | |
| class Model(nn.Module): | |
| def __init__(self, encoder, body_position_net, body_rotation_net, box_net, hand_position_net, hand_roi_net, | |
| hand_rotation_net, face_regressor): | |
| super(Model, self).__init__() | |
| # body | |
| self.encoder = encoder | |
| self.body_position_net = body_position_net | |
| self.body_regressor = body_rotation_net | |
| self.box_net = box_net | |
| # hand | |
| self.hand_roi_net = hand_roi_net | |
| self.hand_position_net = hand_position_net | |
| self.hand_regressor = hand_rotation_net | |
| # face | |
| self.face_regressor = face_regressor | |
| self.smplx_layer = copy.deepcopy(smpl_x.layer['neutral']).to(cfg.device) | |
| self.coord_loss = CoordLoss() | |
| self.param_loss = ParamLoss() | |
| self.ce_loss = CELoss() | |
| self.body_num_joints = len(smpl_x.pos_joint_part['body']) | |
| self.hand_joint_num = len(smpl_x.pos_joint_part['rhand']) | |
| self.neck = [self.box_net, self.hand_roi_net] | |
| self.head = [self.body_position_net, self.body_regressor, | |
| self.hand_position_net, self.hand_regressor, | |
| self.face_regressor] | |
| self.trainable_modules = [self.encoder, self.body_position_net, self.body_regressor, | |
| self.box_net, self.hand_position_net, | |
| self.hand_roi_net, self.hand_regressor, self.face_regressor] | |
| self.special_trainable_modules = [] | |
| # backbone: | |
| param_bb = sum(p.numel() for p in self.encoder.parameters() if p.requires_grad) | |
| # neck | |
| param_neck = 0 | |
| for module in self.neck: | |
| param_neck += sum(p.numel() for p in module.parameters() if p.requires_grad) | |
| # head | |
| param_head = 0 | |
| for module in self.head: | |
| param_head += sum(p.numel() for p in module.parameters() if p.requires_grad) | |
| param_net = param_bb + param_neck + param_head | |
| # print('#parameters:') | |
| # print(f'{param_bb}, {param_neck}, {param_head}, {param_net}') | |
| def get_camera_trans(self, cam_param): | |
| # camera translation | |
| t_xy = cam_param[:, :2] | |
| gamma = torch.sigmoid(cam_param[:, 2]) # apply sigmoid to make it positive | |
| k_value = torch.FloatTensor([math.sqrt(cfg.focal[0] * cfg.focal[1] * cfg.camera_3d_size * cfg.camera_3d_size / ( | |
| cfg.input_body_shape[0] * cfg.input_body_shape[1]))]).to(cfg.device).view(-1) | |
| t_z = k_value * gamma | |
| cam_trans = torch.cat((t_xy, t_z[:, None]), 1) | |
| return cam_trans | |
| def get_coord(self, root_pose, body_pose, lhand_pose, rhand_pose, jaw_pose, shape, expr, cam_trans, mode): | |
| batch_size = root_pose.shape[0] | |
| zero_pose = torch.zeros((1, 3)).float().to(cfg.device).repeat(batch_size, 1) # eye poses | |
| output = self.smplx_layer(betas=shape, body_pose=body_pose, global_orient=root_pose, right_hand_pose=rhand_pose, | |
| left_hand_pose=lhand_pose, jaw_pose=jaw_pose, leye_pose=zero_pose, | |
| reye_pose=zero_pose, expression=expr) | |
| # camera-centered 3D coordinate | |
| mesh_cam = output.vertices | |
| if mode == 'test' and cfg.testset == 'AGORA': # use 144 joints for AGORA evaluation | |
| joint_cam = output.joints | |
| else: | |
| joint_cam = output.joints[:, smpl_x.joint_idx, :] | |
| # project 3D coordinates to 2D space | |
| if mode == 'train' and len(cfg.trainset_3d) == 1 and cfg.trainset_3d[0] == 'AGORA' and len( | |
| cfg.trainset_2d) == 0: # prevent gradients from backpropagating to SMPLX paraemter regression module | |
| x = (joint_cam[:, :, 0].detach() + cam_trans[:, None, 0]) / ( | |
| joint_cam[:, :, 2].detach() + cam_trans[:, None, 2] + 1e-4) * cfg.focal[0] + cfg.princpt[0] | |
| y = (joint_cam[:, :, 1].detach() + cam_trans[:, None, 1]) / ( | |
| joint_cam[:, :, 2].detach() + cam_trans[:, None, 2] + 1e-4) * cfg.focal[1] + cfg.princpt[1] | |
| else: | |
| x = (joint_cam[:, :, 0] + cam_trans[:, None, 0]) / (joint_cam[:, :, 2] + cam_trans[:, None, 2] + 1e-4) * \ | |
| cfg.focal[0] + cfg.princpt[0] | |
| y = (joint_cam[:, :, 1] + cam_trans[:, None, 1]) / (joint_cam[:, :, 2] + cam_trans[:, None, 2] + 1e-4) * \ | |
| cfg.focal[1] + cfg.princpt[1] | |
| x = x / cfg.input_body_shape[1] * cfg.output_hm_shape[2] | |
| y = y / cfg.input_body_shape[0] * cfg.output_hm_shape[1] | |
| joint_proj = torch.stack((x, y), 2) | |
| # root-relative 3D coordinates | |
| root_cam = joint_cam[:, smpl_x.root_joint_idx, None, :] | |
| joint_cam = joint_cam - root_cam | |
| mesh_cam = mesh_cam + cam_trans[:, None, :] # for rendering | |
| joint_cam_wo_ra = joint_cam.clone() | |
| # left hand root (left wrist)-relative 3D coordinatese | |
| lhand_idx = smpl_x.joint_part['lhand'] | |
| lhand_cam = joint_cam[:, lhand_idx, :] | |
| lwrist_cam = joint_cam[:, smpl_x.lwrist_idx, None, :] | |
| lhand_cam = lhand_cam - lwrist_cam | |
| joint_cam = torch.cat((joint_cam[:, :lhand_idx[0], :], lhand_cam, joint_cam[:, lhand_idx[-1] + 1:, :]), 1) | |
| # right hand root (right wrist)-relative 3D coordinatese | |
| rhand_idx = smpl_x.joint_part['rhand'] | |
| rhand_cam = joint_cam[:, rhand_idx, :] | |
| rwrist_cam = joint_cam[:, smpl_x.rwrist_idx, None, :] | |
| rhand_cam = rhand_cam - rwrist_cam | |
| joint_cam = torch.cat((joint_cam[:, :rhand_idx[0], :], rhand_cam, joint_cam[:, rhand_idx[-1] + 1:, :]), 1) | |
| # face root (neck)-relative 3D coordinates | |
| face_idx = smpl_x.joint_part['face'] | |
| face_cam = joint_cam[:, face_idx, :] | |
| neck_cam = joint_cam[:, smpl_x.neck_idx, None, :] | |
| face_cam = face_cam - neck_cam | |
| joint_cam = torch.cat((joint_cam[:, :face_idx[0], :], face_cam, joint_cam[:, face_idx[-1] + 1:, :]), 1) | |
| return joint_proj, joint_cam, joint_cam_wo_ra, mesh_cam | |
| def generate_mesh_gt(self, targets, mode): | |
| if 'smplx_mesh_cam' in targets: | |
| return targets['smplx_mesh_cam'] | |
| nums = [3, 63, 45, 45, 3] | |
| accu = [] | |
| temp = 0 | |
| for num in nums: | |
| temp += num | |
| accu.append(temp) | |
| pose = targets['smplx_pose'] | |
| root_pose, body_pose, lhand_pose, rhand_pose, jaw_pose = \ | |
| pose[:, :accu[0]], pose[:, accu[0]:accu[1]], pose[:, accu[1]:accu[2]], pose[:, accu[2]:accu[3]], pose[:, | |
| accu[3]: | |
| accu[4]] | |
| # print(lhand_pose) | |
| shape = targets['smplx_shape'] | |
| expr = targets['smplx_expr'] | |
| cam_trans = targets['smplx_cam_trans'] | |
| # final output | |
| joint_proj, joint_cam, joint_cam_wo_ra, mesh_cam = self.get_coord(root_pose, body_pose, lhand_pose, rhand_pose, jaw_pose, shape, | |
| expr, cam_trans, mode) | |
| return mesh_cam | |
| def bbox_split(self, bbox): | |
| # bbox:[bs, 3, 3] | |
| lhand_bbox_center, rhand_bbox_center, face_bbox_center = \ | |
| bbox[:, 0, :2], bbox[:, 1, :2], bbox[:, 2, :2] | |
| return lhand_bbox_center, rhand_bbox_center, face_bbox_center | |
| def forward(self, inputs, targets, meta_info, mode): | |
| body_img = F.interpolate(inputs['img'], cfg.input_body_shape) | |
| # 1. Encoder | |
| img_feat, task_tokens = self.encoder(body_img) # task_token:[bs, N, c] | |
| shape_token, cam_token, expr_token, jaw_pose_token, hand_token, body_pose_token = \ | |
| task_tokens[:, 0], task_tokens[:, 1], task_tokens[:, 2], task_tokens[:, 3], task_tokens[:, 4:6], task_tokens[:, 6:] | |
| # 2. Body Regressor | |
| body_joint_hm, body_joint_img = self.body_position_net(img_feat) | |
| root_pose, body_pose, shape, cam_param, = self.body_regressor(body_pose_token, shape_token, cam_token, body_joint_img.detach()) | |
| root_pose = rot6d_to_axis_angle(root_pose) | |
| body_pose = rot6d_to_axis_angle(body_pose.reshape(-1, 6)).reshape(body_pose.shape[0], -1) # (N, J_R*3) | |
| cam_trans = self.get_camera_trans(cam_param) | |
| # 3. Hand and Face BBox Estimation | |
| lhand_bbox_center, lhand_bbox_size, rhand_bbox_center, rhand_bbox_size, face_bbox_center, face_bbox_size = self.box_net(img_feat, body_joint_hm.detach()) | |
| lhand_bbox = restore_bbox(lhand_bbox_center, lhand_bbox_size, cfg.input_hand_shape[1] / cfg.input_hand_shape[0], 2.0).detach() # xyxy in (cfg.input_body_shape[1], cfg.input_body_shape[0]) space | |
| rhand_bbox = restore_bbox(rhand_bbox_center, rhand_bbox_size, cfg.input_hand_shape[1] / cfg.input_hand_shape[0], 2.0).detach() # xyxy in (cfg.input_body_shape[1], cfg.input_body_shape[0]) space | |
| face_bbox = restore_bbox(face_bbox_center, face_bbox_size, cfg.input_face_shape[1] / cfg.input_face_shape[0], 1.5).detach() # xyxy in (cfg.input_body_shape[1], cfg.input_body_shape[0]) space | |
| # 4. Differentiable Feature-level Hand Crop-Upsample | |
| # hand_feat: list, [bsx2, c, cfg.output_hm_shape[1]*scale, cfg.output_hm_shape[2]*scale] | |
| hand_feat = self.hand_roi_net(img_feat, lhand_bbox, rhand_bbox) # hand_feat: flipped left hand + right hand | |
| # 5. Hand/Face Regressor | |
| # hand regressor | |
| _, hand_joint_img = self.hand_position_net(hand_feat) # (2N, J_P, 3) | |
| hand_pose = self.hand_regressor(hand_feat, hand_joint_img.detach()) | |
| hand_pose = rot6d_to_axis_angle(hand_pose.reshape(-1, 6)).reshape(hand_feat.shape[0], -1) # (2N, J_R*3) | |
| # restore flipped left hand joint coordinates | |
| batch_size = hand_joint_img.shape[0] // 2 | |
| lhand_joint_img = hand_joint_img[:batch_size, :, :] | |
| lhand_joint_img = torch.cat((cfg.output_hand_hm_shape[2] - 1 - lhand_joint_img[:, :, 0:1], lhand_joint_img[:, :, 1:]), 2) | |
| rhand_joint_img = hand_joint_img[batch_size:, :, :] | |
| # restore flipped left hand joint rotations | |
| batch_size = hand_pose.shape[0] // 2 | |
| lhand_pose = hand_pose[:batch_size, :].reshape(-1, len(smpl_x.orig_joint_part['lhand']), 3) | |
| lhand_pose = torch.cat((lhand_pose[:, :, 0:1], -lhand_pose[:, :, 1:3]), 2).view(batch_size, -1) | |
| rhand_pose = hand_pose[batch_size:, :] | |
| # hand regressor | |
| expr, jaw_pose = self.face_regressor(expr_token, jaw_pose_token) | |
| jaw_pose = rot6d_to_axis_angle(jaw_pose) | |
| # final output | |
| joint_proj, joint_cam, joint_cam_wo_ra, mesh_cam = self.get_coord(root_pose, body_pose, lhand_pose, rhand_pose, jaw_pose, shape, expr, cam_trans, mode) | |
| pose = torch.cat((root_pose, body_pose, lhand_pose, rhand_pose, jaw_pose), 1) | |
| joint_img = torch.cat((body_joint_img, lhand_joint_img, rhand_joint_img), 1) | |
| if mode == 'test' and 'smplx_pose' in targets: | |
| mesh_pseudo_gt = self.generate_mesh_gt(targets, mode) | |
| if mode == 'train': | |
| # loss functions | |
| loss = {} | |
| smplx_kps_3d_weight = getattr(cfg, 'smplx_kps_3d_weight', 1.0) | |
| smplx_kps_3d_weight = getattr(cfg, 'smplx_kps_weight', smplx_kps_3d_weight) # old config | |
| smplx_kps_2d_weight = getattr(cfg, 'smplx_kps_2d_weight', 1.0) | |
| net_kps_2d_weight = getattr(cfg, 'net_kps_2d_weight', 1.0) | |
| smplx_pose_weight = getattr(cfg, 'smplx_pose_weight', 1.0) | |
| smplx_shape_weight = getattr(cfg, 'smplx_loss_weight', 1.0) | |
| # smplx_orient_weight = getattr(cfg, 'smplx_orient_weight', smplx_pose_weight) # if not specified, use the same weight as pose | |
| # do not supervise root pose if original agora json is used | |
| if getattr(cfg, 'agora_fix_global_orient_transl', False): | |
| # loss['smplx_pose'] = self.param_loss(pose, targets['smplx_pose'], meta_info['smplx_pose_valid'])[:, 3:] * smplx_pose_weight | |
| if hasattr(cfg, 'smplx_orient_weight'): | |
| smplx_orient_weight = getattr(cfg, 'smplx_orient_weight') | |
| loss['smplx_orient'] = self.param_loss(pose, targets['smplx_pose'], meta_info['smplx_pose_valid'])[:, :3] * smplx_orient_weight | |
| loss['smplx_pose'] = self.param_loss(pose, targets['smplx_pose'], meta_info['smplx_pose_valid']) * smplx_pose_weight | |
| else: | |
| loss['smplx_pose'] = self.param_loss(pose, targets['smplx_pose'], meta_info['smplx_pose_valid'])[:, 3:] * smplx_pose_weight | |
| loss['smplx_shape'] = self.param_loss(shape, targets['smplx_shape'], | |
| meta_info['smplx_shape_valid'][:, None]) * smplx_shape_weight | |
| loss['smplx_expr'] = self.param_loss(expr, targets['smplx_expr'], meta_info['smplx_expr_valid'][:, None]) | |
| # supervision for keypoints3d wo/ ra | |
| loss['joint_cam'] = self.coord_loss(joint_cam_wo_ra, targets['joint_cam'], meta_info['joint_valid'] * meta_info['is_3D'][:, None, None]) * smplx_kps_3d_weight | |
| # supervision for keypoints3d w/ ra | |
| loss['smplx_joint_cam'] = self.coord_loss(joint_cam, targets['smplx_joint_cam'], meta_info['smplx_joint_valid']) * smplx_kps_3d_weight | |
| if not (meta_info['lhand_bbox_valid'] == 0).all(): | |
| loss['lhand_bbox'] = (self.coord_loss(lhand_bbox_center, targets['lhand_bbox_center'], meta_info['lhand_bbox_valid'][:, None]) + | |
| self.coord_loss(lhand_bbox_size, targets['lhand_bbox_size'], meta_info['lhand_bbox_valid'][:, None])) | |
| if not (meta_info['rhand_bbox_valid'] == 0).all(): | |
| loss['rhand_bbox'] = (self.coord_loss(rhand_bbox_center, targets['rhand_bbox_center'], meta_info['rhand_bbox_valid'][:, None]) + | |
| self.coord_loss(rhand_bbox_size, targets['rhand_bbox_size'], meta_info['rhand_bbox_valid'][:, None])) | |
| if not (meta_info['face_bbox_valid'] == 0).all(): | |
| loss['face_bbox'] = (self.coord_loss(face_bbox_center, targets['face_bbox_center'], meta_info['face_bbox_valid'][:, None]) + | |
| self.coord_loss(face_bbox_size, targets['face_bbox_size'], meta_info['face_bbox_valid'][:, None])) | |
| # if (meta_info['face_bbox_valid'] == 0).all(): | |
| # out = {} | |
| targets['original_joint_img'] = targets['joint_img'].clone() | |
| targets['original_smplx_joint_img'] = targets['smplx_joint_img'].clone() | |
| # out['original_joint_proj'] = joint_proj.clone() | |
| if not (meta_info['lhand_bbox_valid'] + meta_info['rhand_bbox_valid'] == 0).all(): | |
| # change hand target joint_img and joint_trunc according to hand bbox (cfg.output_hm_shape -> downsampled hand bbox space) | |
| for part_name, bbox in (('lhand', lhand_bbox), ('rhand', rhand_bbox)): | |
| for coord_name, trunc_name in (('joint_img', 'joint_trunc'), ('smplx_joint_img', 'smplx_joint_trunc')): | |
| x = targets[coord_name][:, smpl_x.joint_part[part_name], 0] | |
| y = targets[coord_name][:, smpl_x.joint_part[part_name], 1] | |
| z = targets[coord_name][:, smpl_x.joint_part[part_name], 2] | |
| trunc = meta_info[trunc_name][:, smpl_x.joint_part[part_name], 0] | |
| x -= (bbox[:, None, 0] / cfg.input_body_shape[1] * cfg.output_hm_shape[2]) | |
| x *= (cfg.output_hand_hm_shape[2] / ( | |
| (bbox[:, None, 2] - bbox[:, None, 0]) / cfg.input_body_shape[1] * cfg.output_hm_shape[ | |
| 2])) | |
| y -= (bbox[:, None, 1] / cfg.input_body_shape[0] * cfg.output_hm_shape[1]) | |
| y *= (cfg.output_hand_hm_shape[1] / ( | |
| (bbox[:, None, 3] - bbox[:, None, 1]) / cfg.input_body_shape[0] * cfg.output_hm_shape[ | |
| 1])) | |
| z *= cfg.output_hand_hm_shape[0] / cfg.output_hm_shape[0] | |
| trunc *= ((x >= 0) * (x < cfg.output_hand_hm_shape[2]) * (y >= 0) * ( | |
| y < cfg.output_hand_hm_shape[1])) | |
| coord = torch.stack((x, y, z), 2) | |
| trunc = trunc[:, :, None] | |
| targets[coord_name] = torch.cat((targets[coord_name][:, :smpl_x.joint_part[part_name][0], :], coord, | |
| targets[coord_name][:, smpl_x.joint_part[part_name][-1] + 1:, :]), | |
| 1) | |
| meta_info[trunc_name] = torch.cat((meta_info[trunc_name][:, :smpl_x.joint_part[part_name][0], :], | |
| trunc, | |
| meta_info[trunc_name][:, smpl_x.joint_part[part_name][-1] + 1:, | |
| :]), 1) | |
| # change hand projected joint coordinates according to hand bbox (cfg.output_hm_shape -> hand bbox space) | |
| for part_name, bbox in (('lhand', lhand_bbox), ('rhand', rhand_bbox)): | |
| x = joint_proj[:, smpl_x.joint_part[part_name], 0] | |
| y = joint_proj[:, smpl_x.joint_part[part_name], 1] | |
| x -= (bbox[:, None, 0] / cfg.input_body_shape[1] * cfg.output_hm_shape[2]) | |
| x *= (cfg.output_hand_hm_shape[2] / ( | |
| (bbox[:, None, 2] - bbox[:, None, 0]) / cfg.input_body_shape[1] * cfg.output_hm_shape[2])) | |
| y -= (bbox[:, None, 1] / cfg.input_body_shape[0] * cfg.output_hm_shape[1]) | |
| y *= (cfg.output_hand_hm_shape[1] / ( | |
| (bbox[:, None, 3] - bbox[:, None, 1]) / cfg.input_body_shape[0] * cfg.output_hm_shape[1])) | |
| coord = torch.stack((x, y), 2) | |
| trans = [] | |
| for bid in range(coord.shape[0]): | |
| mask = meta_info['joint_trunc'][bid, smpl_x.joint_part[part_name], 0] == 1 | |
| if torch.sum(mask) == 0: | |
| trans.append(torch.zeros((2)).float().to(cfg.device)) | |
| else: | |
| trans.append((-coord[bid, mask, :2] + targets['joint_img'][:, smpl_x.joint_part[part_name], :][ | |
| bid, mask, :2]).mean(0)) | |
| trans = torch.stack(trans)[:, None, :] | |
| coord = coord + trans # global translation alignment | |
| joint_proj = torch.cat((joint_proj[:, :smpl_x.joint_part[part_name][0], :], coord, | |
| joint_proj[:, smpl_x.joint_part[part_name][-1] + 1:, :]), 1) | |
| if not (meta_info['face_bbox_valid'] == 0).all(): | |
| # change face projected joint coordinates according to face bbox (cfg.output_hm_shape -> face bbox space) | |
| coord = joint_proj[:, smpl_x.joint_part['face'], :] | |
| trans = [] | |
| for bid in range(coord.shape[0]): | |
| mask = meta_info['joint_trunc'][bid, smpl_x.joint_part['face'], 0] == 1 | |
| if torch.sum(mask) == 0: | |
| trans.append(torch.zeros((2)).float().to(cfg.device)) | |
| else: | |
| trans.append((-coord[bid, mask, :2] + targets['joint_img'][:, smpl_x.joint_part['face'], :][bid, | |
| mask, :2]).mean(0)) | |
| trans = torch.stack(trans)[:, None, :] | |
| coord = coord + trans # global translation alignment | |
| joint_proj = torch.cat((joint_proj[:, :smpl_x.joint_part['face'][0], :], coord, | |
| joint_proj[:, smpl_x.joint_part['face'][-1] + 1:, :]), 1) | |
| loss['joint_proj'] = self.coord_loss(joint_proj, targets['joint_img'][:, :, :2], meta_info['joint_trunc']) * smplx_kps_2d_weight | |
| loss['joint_img'] = self.coord_loss(joint_img, smpl_x.reduce_joint_set(targets['joint_img']), | |
| smpl_x.reduce_joint_set(meta_info['joint_trunc']), meta_info['is_3D']) * net_kps_2d_weight | |
| loss['smplx_joint_img'] = self.coord_loss(joint_img, smpl_x.reduce_joint_set(targets['smplx_joint_img']), | |
| smpl_x.reduce_joint_set(meta_info['smplx_joint_trunc'])) * net_kps_2d_weight | |
| return loss | |
| else: | |
| # change hand output joint_img according to hand bbox | |
| for part_name, bbox in (('lhand', lhand_bbox), ('rhand', rhand_bbox)): | |
| joint_img[:, smpl_x.pos_joint_part[part_name], 0] *= ( | |
| ((bbox[:, None, 2] - bbox[:, None, 0]) / cfg.input_body_shape[1] * cfg.output_hm_shape[2]) / | |
| cfg.output_hand_hm_shape[2]) | |
| joint_img[:, smpl_x.pos_joint_part[part_name], 0] += ( | |
| bbox[:, None, 0] / cfg.input_body_shape[1] * cfg.output_hm_shape[2]) | |
| joint_img[:, smpl_x.pos_joint_part[part_name], 1] *= ( | |
| ((bbox[:, None, 3] - bbox[:, None, 1]) / cfg.input_body_shape[0] * cfg.output_hm_shape[1]) / | |
| cfg.output_hand_hm_shape[1]) | |
| joint_img[:, smpl_x.pos_joint_part[part_name], 1] += ( | |
| bbox[:, None, 1] / cfg.input_body_shape[0] * cfg.output_hm_shape[1]) | |
| # change input_body_shape to input_img_shape | |
| for bbox in (lhand_bbox, rhand_bbox, face_bbox): | |
| bbox[:, 0] *= cfg.input_img_shape[1] / cfg.input_body_shape[1] | |
| bbox[:, 1] *= cfg.input_img_shape[0] / cfg.input_body_shape[0] | |
| bbox[:, 2] *= cfg.input_img_shape[1] / cfg.input_body_shape[1] | |
| bbox[:, 3] *= cfg.input_img_shape[0] / cfg.input_body_shape[0] | |
| # test output | |
| out = {} | |
| out['img'] = inputs['img'] | |
| out['joint_img'] = joint_img | |
| out['smplx_joint_proj'] = joint_proj | |
| out['smplx_mesh_cam'] = mesh_cam | |
| out['smplx_root_pose'] = root_pose | |
| out['smplx_body_pose'] = body_pose | |
| out['smplx_lhand_pose'] = lhand_pose | |
| out['smplx_rhand_pose'] = rhand_pose | |
| out['smplx_jaw_pose'] = jaw_pose | |
| out['smplx_shape'] = shape | |
| out['smplx_expr'] = expr | |
| out['cam_trans'] = cam_trans | |
| out['lhand_bbox'] = lhand_bbox | |
| out['rhand_bbox'] = rhand_bbox | |
| out['face_bbox'] = face_bbox | |
| if 'smplx_shape' in targets: | |
| out['smplx_shape_target'] = targets['smplx_shape'] | |
| if 'img_path' in meta_info: | |
| out['img_path'] = meta_info['img_path'] | |
| if 'smplx_pose' in targets: | |
| out['smplx_mesh_cam_pseudo_gt'] = mesh_pseudo_gt | |
| if 'smplx_mesh_cam' in targets: | |
| out['smplx_mesh_cam_target'] = targets['smplx_mesh_cam'] | |
| if 'smpl_mesh_cam' in targets: | |
| out['smpl_mesh_cam_target'] = targets['smpl_mesh_cam'] | |
| if 'bb2img_trans' in meta_info: | |
| out['bb2img_trans'] = meta_info['bb2img_trans'] | |
| if 'gt_smplx_transl' in meta_info: | |
| out['gt_smplx_transl'] = meta_info['gt_smplx_transl'] | |
| return out | |
| def init_weights(m): | |
| try: | |
| if type(m) == nn.ConvTranspose2d: | |
| nn.init.normal_(m.weight, std=0.001) | |
| elif type(m) == nn.Conv2d: | |
| nn.init.normal_(m.weight, std=0.001) | |
| nn.init.constant_(m.bias, 0) | |
| elif type(m) == nn.BatchNorm2d: | |
| nn.init.constant_(m.weight, 1) | |
| nn.init.constant_(m.bias, 0) | |
| elif type(m) == nn.Linear: | |
| nn.init.normal_(m.weight, std=0.01) | |
| nn.init.constant_(m.bias, 0) | |
| except AttributeError: | |
| pass | |
| def get_model(mode): | |
| # body | |
| vit_cfg = Config.fromfile(cfg.encoder_config_file) | |
| vit = build_posenet(vit_cfg.model) | |
| body_position_net = PositionNet('body', feat_dim=cfg.feat_dim) | |
| body_rotation_net = BodyRotationNet(feat_dim=cfg.feat_dim) | |
| box_net = BoxNet(feat_dim=cfg.feat_dim) | |
| # hand | |
| hand_position_net = PositionNet('hand', feat_dim=cfg.feat_dim) | |
| hand_roi_net = HandRoI(feat_dim=cfg.feat_dim, upscale=cfg.upscale) | |
| hand_rotation_net = HandRotationNet('hand', feat_dim=cfg.feat_dim) | |
| # face | |
| face_regressor = FaceRegressor(feat_dim=cfg.feat_dim) | |
| if mode == 'train': | |
| # body | |
| if not getattr(cfg, 'random_init', False): | |
| encoder_pretrained_model = torch.load(cfg.encoder_pretrained_model_path)['state_dict'] | |
| vit.load_state_dict(encoder_pretrained_model, strict=False) | |
| print(f"Initialize encoder from {cfg.encoder_pretrained_model_path}") | |
| else: | |
| print('Random init!!!!!!!') | |
| body_position_net.apply(init_weights) | |
| body_rotation_net.apply(init_weights) | |
| box_net.apply(init_weights) | |
| # hand | |
| hand_position_net.apply(init_weights) | |
| hand_roi_net.apply(init_weights) | |
| hand_rotation_net.apply(init_weights) | |
| # face | |
| face_regressor.apply(init_weights) | |
| encoder = vit.backbone | |
| model = Model(encoder, body_position_net, body_rotation_net, box_net, hand_position_net, hand_roi_net, hand_rotation_net, | |
| face_regressor) | |
| return model |