def train(opt, train_loader, m, criterion, optimizer, writer):
loss_logger = DataLogger()
acc_logger = DataLogger()
m.train()
norm_type = cfg.LOSS.get('NORM_TYPE', None)
train_loader = tqdm(train_loader, dynamic_ncols=True)
for i, (inps, labels, label_masks, _, bboxes) in enumerate(train_loader):
if isinstance(inps, list):
inps = [inp.cuda().requires_grad_() for inp in inps]
else:
inps = inps.cuda().requires_grad_()
labels = labels.cuda()
label_masks = label_masks.cuda()
output = m(inps)
if cfg.LOSS.get('TYPE') == 'MSELoss':
loss = 0.5 * criterion(output.mul(label_masks), labels.mul(label_masks))
acc = calc_accuracy(output.mul(label_masks), labels.mul(label_masks))
else:
loss = criterion(output, labels, label_masks)
acc = calc_integral_accuracy(output, labels, label_masks, output_3d=False, norm_type=norm_type)
if isinstance(inps, list):
batch_size = inps[0].size(0)
else:
batch_size = inps.size(0)
loss_logger.update(loss.item(), batch_size)
acc_logger.update(acc, batch_size)
optimizer.zero_grad()
loss.backward()
optimizer.step()
opt.trainIters += 1
# Tensorboard
if opt.board:
board_writing(writer, loss_logger.avg, acc_logger.avg, opt.trainIters, 'Train')
# Debug
if opt.debug and not i % 10:
debug_writing(writer, output, labels, inps, opt.trainIters)
# TQDM
train_loader.set_description(
'loss: {loss:.8f} | acc: {acc:.4f}'.format(
loss=loss_logger.avg,
acc=acc_logger.avg)
)
train_loader.close()
return loss_logger.avg, acc_logger.avg
def validate_gt(m, opt, cfg, heatmap_to_coord, criterion, batch_size=20):
loss_logger = DataLogger()
acc_logger = DataLogger()
gt_val_dataset = builder.build_dataset(cfg.DATASET.VAL, preset_cfg=cfg.DATA_PRESET, train=False)
eval_joints = gt_val_dataset.EVAL_JOINTS
gt_val_loader = torch.utils.data.DataLoader(
gt_val_dataset, batch_size=batch_size, shuffle=False, num_workers=20, drop_last=False)
kpt_json = []
m.eval()
for inps, labels, label_masks, img_ids, bboxes in tqdm(gt_val_loader, dynamic_ncols=True):
if isinstance(inps, list):
inps = [inp.cuda() for inp in inps]
else:
inps = inps.cuda()
output = m(inps)
##
labels = labels.cuda()
label_masks = label_masks.cuda()
loss = 0.5 * criterion(output.mul(label_masks), labels.mul(label_masks))
acc = calc_accuracy(output.mul(label_masks), labels.mul(label_masks))
pred = output.cpu().data.numpy()
assert pred.ndim == 4
pred = pred[:, eval_joints, :, :]
loss_logger.update(loss.item(), batch_size)
acc_logger.update(acc, batch_size)
for i in range(output.shape[0]):
bbox = bboxes[i].tolist()
pose_coords, pose_scores = heatmap_to_coord(pred[i][gt_val_dataset.EVAL_JOINTS], bbox)
keypoints = np.concatenate((pose_coords, pose_scores), axis=1)
keypoints = keypoints.reshape(-1).tolist()
data = dict()
data['bbox'] = bboxes[i].tolist()
data['image_id'] = img_ids[i]
data['score'] = float(np.mean(pose_scores) + np.max(pose_scores))
data['category_id'] = 1
data['keypoints'] = keypoints
kpt_json.append(data)
with open(os.path.join(opt.work_dir, 'test_gt_kpt.json'), 'w') as fid:
json.dump(kpt_json, fid)
#res = evaluate_mAP(os.path.join(opt.work_dir, 'test_gt_kpt.json'), ann_type='keypoints')
#return res['AP']
return loss_logger.avg, acc_logger.avg
def train(opt, train_loader, m, criterion, optimizer, writer, scaler):
loggers = {
'joint_loss': DataLogger(),
'radius_loss': DataLogger(),
'loss': DataLogger(),
'acc': DataLogger(),
'acc_radius': DataLogger(),
}
m.train()
train_dataset = train_loader.dataset
train_loader = tqdm(train_loader, dynamic_ncols=True)
radius_loss_item = -1
acc_radius = -1
for i, (inps, labels, label_masks, joint_radius_gt, _,
bboxes) in enumerate(train_loader):
if isinstance(inps, list):
if opt.device.type != 'cpu':
inps = [inp.cuda() for inp in inps]
inps = [inp.requires_grad_() for inp in inps]
else:
if opt.device.type != 'cpu':
inps = inps.cuda()
inps = inps.requires_grad_()
if opt.device.type != 'cpu':
labels = labels.cuda()
label_masks = label_masks.cuda()
joint_radius_gt = joint_radius_gt.cuda()
with autocast():
full_output = m(inps)
joint_map = full_output.joints_map
joints_radius = full_output.joints_radius
if cfg.LOSS.get('TYPE') == 'MSELoss':
assert criterion.reduction == "sum"
coef = 1000
joint_loss = 0.5 * coef * criterion(joint_map.mul(label_masks),
labels.mul(label_masks))
joint_loss /= label_masks.sum(
) * joint_map.shape[2] * joint_map.shape[3]
loss = joint_loss
if opt.fit_radius:
radius_masks = label_masks[:, :, 0,
0] * (joint_radius_gt != -1)
radius_loss = 0.5 * criterion(
joint_radius_gt.mul(radius_masks),
joints_radius.mul(radius_masks))
joint_loss /= radius_masks.sum()
loss += radius_loss
radius_loss_item = radius_loss.item()
acc_radius = ((joint_radius_gt.mul(radius_masks) -
joints_radius.mul(radius_masks)) <
1).sum() / float(joint_radius_gt.shape[0] *
joint_radius_gt.shape[1])
acc = calc_accuracy(joint_map.mul(label_masks),
labels.mul(label_masks))
else:
raise NotImplementedError()
loss = criterion(joint_map, labels, label_masks)
acc = calc_integral_accuracy(joint_map,
labels,
label_masks,
output_3d=False,
norm_type=norm_type)
if isinstance(inps, list):
batch_size = inps[0].size(0)
else:
batch_size = inps.size(0)
loggers["joint_loss"].update(joint_loss.item(), batch_size)
loggers["radius_loss"].update(radius_loss_item, batch_size)
loggers["loss"].update(loss.item(), batch_size)
loggers["acc"].update(acc, batch_size)
loggers["acc_radius"].update(acc_radius, batch_size)
optimizer.zero_grad()
scaler.scale(loss).backward()
scaler.step(optimizer)
scaler.update()
opt.trainIters += 1
# Tensorboard
if opt.board:
board_writing(writer, loggers, opt.trainIters, 'Train')
# Debug
if opt.debug and not i % 100:
debug_image_index = 2526
debug_data = train_dataset[debug_image_index]
(inps, labels, label_masks, joint_radius_gt, _,
bboxes) = debug_data
inps = inps[None, :]
full_output = m(inps)
joint_map = full_output.joints_map
joints_radius = full_output.joints_radius
debug_writing(writer, joint_map, joints_radius, labels[None, :],
joint_radius_gt[None, :], inps, opt.trainIters)
# TQDM
train_loader.set_description(" | ".join(
f"{name}:{logger.avg:.05f}" for name, logger in loggers.items()))
train_loader.close()
return loggers
def train(opt, train_loader, m, criterion, optimizer, writer):
loss_logger = DataLogger()
acc_logger = DataLogger()
combined_loss = (cfg.LOSS.get('TYPE') == 'Combined')
m.train()
norm_type = cfg.LOSS.get('NORM_TYPE', None)
train_loader = tqdm(train_loader, dynamic_ncols=True)
for i, (inps, labels, label_masks, _, bboxes) in enumerate(train_loader):
if isinstance(inps, list):
inps = [inp.cuda().requires_grad_() for inp in inps]
else:
inps = inps.cuda().requires_grad_()
if isinstance(labels, list):
labels = [label.cuda() for label in labels]
label_masks = [label_mask.cuda() for label_mask in label_masks]
else:
labels = labels.cuda()
label_masks = label_masks.cuda()
output = m(inps)
if cfg.LOSS.get('TYPE') == 'MSELoss':
loss = 0.5 * criterion(output.mul(label_masks), labels.mul(label_masks))
acc = calc_accuracy(output.mul(label_masks), labels.mul(label_masks))
elif cfg.LOSS.get('TYPE') == 'Combined':
if output.size()[1] == 68:
face_hand_num = 42
else:
face_hand_num = 110
output_body_foot = output[:, :-face_hand_num, :, :]
output_face_hand = output[:, -face_hand_num:, :, :]
num_body_foot = output_body_foot.shape[1]
num_face_hand = output_face_hand.shape[1]
label_masks_body_foot = label_masks[0]
label_masks_face_hand = label_masks[1]
labels_body_foot = labels[0]
labels_face_hand = labels[1]
loss_body_foot = 0.5 * criterion[0](output_body_foot.mul(label_masks_body_foot), labels_body_foot.mul(label_masks_body_foot))
acc_body_foot = calc_accuracy(output_body_foot.mul(label_masks_body_foot), labels_body_foot.mul(label_masks_body_foot))
loss_face_hand = criterion[1](output_face_hand, labels_face_hand, label_masks_face_hand)
acc_face_hand = calc_integral_accuracy(output_face_hand, labels_face_hand, label_masks_face_hand, output_3d=False, norm_type=norm_type)
loss_body_foot *= 100
loss_face_hand *= 0.01
loss = loss_body_foot + loss_face_hand
acc = acc_body_foot * num_body_foot / (num_body_foot + num_face_hand) + acc_face_hand * num_face_hand / (num_body_foot + num_face_hand)
else:
loss = criterion(output, labels, label_masks)
acc = calc_integral_accuracy(output, labels, label_masks, output_3d=False, norm_type=norm_type)
if isinstance(inps, list):
batch_size = inps[0].size(0)
else:
batch_size = inps.size(0)
loss_logger.update(loss.item(), batch_size)
acc_logger.update(acc, batch_size)
optimizer.zero_grad()
loss.backward()
optimizer.step()
opt.trainIters += 1
# Tensorboard
if opt.board:
board_writing(writer, loss_logger.avg, acc_logger.avg, opt.trainIters, 'Train')
# Debug
if opt.debug and not i % 10:
debug_writing(writer, output, labels, inps, opt.trainIters)
# TQDM
train_loader.set_description(
'loss: {loss:.8f} | acc: {acc:.4f}'.format(
loss=loss_logger.avg,
acc=acc_logger.avg)
)
train_loader.close()
return loss_logger.avg, acc_logger.avg