class NLT_Trainer(object):
def __init__(self, cfg_data, pwd):
self.cfg_data = cfg_data
self.pwd = pwd
self.exp_path = cfg.EXP_PATH
self.exp_name = cfg.EXP_NAME
if not osp.exists(self.exp_path):
os.makedirs(self.exp_path)
self.sou_loader, self.tar_shot_loader, self.tar_val_loader, self.tar_test_loader, self.restore_transform = loading_data(cfg)
self.sou_model = NLT_Counter( backbone=cfg.model_type)
self.tar_model = NLT_Counter( mode='nlt', backbone=cfg.model_type)
self.sou_optimizer = torch.optim.Adam(self.sou_model.parameters(), lr = cfg.nlt_lr, weight_decay=cfg.nlt_lr_decay)
self.tar_optimizer = torch.optim.Adam(
[{'params': filter(lambda p: p.requires_grad, self.tar_model.encoder.parameters()), 'lr': cfg.nlt_lr}, \
{'params': filter(lambda p: p.requires_grad, self.tar_model.decoder.parameters()), 'lr':cfg.nlt_lr}])
self.sou_lr_scheduler = torch.optim.lr_scheduler.StepLR(self.sou_optimizer, step_size=cfg.step_size, gamma=cfg.gamma)
self.tar_lr_scheduler = torch.optim.lr_scheduler.StepLR(self.tar_optimizer, step_size=cfg.step_size, gamma=cfg.gamma)
#
if cfg.init_weights is not None:
self.pretrained_dict = torch.load(cfg.init_weights) # ['params']
self.sou_model.load_state_dict(self.pretrained_dict,strict=False)
self.tar_model.load_state_dict(self.pretrained_dict,strict=False)
os.environ["CUDA_VISIBLE_DEVICES"] = cfg.gpu_id
self.sou_model = torch.nn.DataParallel(self.sou_model).cuda()
self.tar_model = torch.nn.DataParallel(self.tar_model).cuda()
self.tar_model_record = {"best_mae": 1e20, "best_mse": 1e20, "best_model_name": "", "update_flag": 0,
"temp_test_mae": 1e20, "temp_test_mse": 1e20}
self.sou_model_record = {"best_mae": 1e20, "best_mse": 1e20, "best_model_name": "", "update_flag": 0,
"temp_test_mae": 1e20, "temp_test_mse": 1e20 }
self.epoch = 0
self.writer, self.log_txt = logger(self.exp_path, self.exp_name, self.pwd, ["exp"])
def forward(self):
timer = Timer()
self.global_count = 0
for epoch in range(1, cfg.max_epoch + 1):
self.epoch = epoch
self.train()
self.fine_tune()
if self.epoch % cfg.val_freq == 0:
if cfg.target_dataset is "WE":
self.tar_model_V2(self.tar_val_loader, "val")
if cfg.target_dataset in ["VENICE", "QNRF", "SHHA", "SHHB", "MALL", "UCSD"]:
self.tar_model_V1(self.tar_val_loader, "val")
print('=' * 50)
print('Running Time: {}, Estimated Time: {}'.format(timer.measure(), timer.measure(self.epoch / cfg.max_epoch)))
self.sou_lr_scheduler.step()
self.tar_lr_scheduler.step()
self.writer.close()
def train(self):
self.sou_model.train()
self.tar_model.train()
train_loss = AverageMeter()
train_mae = AverageMeter()
train_mse = AverageMeter()
shot_loss = AverageMeter()
shot_mae = AverageMeter()
shot_mse = AverageMeter()
for i, (a, b) in enumerate(zip(self.sou_loader, self.tar_shot_loader), 1):
self.global_count = self.global_count + 1
sou_img,sou_label = a[0].cuda(),a[1].cuda()
shot_img, shot_label = b[0].cuda(), b[1].cuda()
if self.epoch <cfg.DA_stop_epoch:
# ==================change sou_model parameters===============
sou_pred = self.sou_model(sou_img)
loss = F.mse_loss(sou_pred.squeeze(), sou_label.squeeze())
self.sou_optimizer.zero_grad()
loss.backward()
self.sou_optimizer.step()
self.writer.add_scalar('data/sou_loss', loss.item(), self.global_count)
train_loss.update(loss.item())
sou_pred_cnt, sou_label_cnt = self.mae_mse_update(sou_pred, sou_label, train_mae, train_mse)
self.tar_model.load_state_dict(self.sou_model.state_dict(), strict=False)
# ================================================================
else:
sou_label_cnt=0
sou_pred_cnt=0
#=====================change tar_model parameters================
shot_pred = self.tar_model(shot_img)
loss_mse = F.mse_loss(shot_pred.squeeze(), shot_label.squeeze())
loss = self.weight_decay_loss(self.tar_model, 1e-4) + loss_mse
self.tar_optimizer.zero_grad()
loss.backward()
self.tar_optimizer.step()
self.writer.add_scalar('data/shot_loss', loss.item(), self.global_count)
shot_loss.update(loss.item())
pred_cnt, label_cnt = self.mae_mse_update(shot_pred, shot_label, shot_mae, shot_mse)
# ===============================================================
if i % cfg.print_freq == 0:
print('Epoch {}, Loss={:.4f} s_gt={:.1f} s_pre={:.1f},t_gt={:.1f} t_pre={:.1f} lr={:.4f}'.format(
self.epoch, loss.item(), sou_label_cnt,sou_pred_cnt,label_cnt, pred_cnt, self.sou_optimizer.param_groups[0]['lr']*10000))
self.writer.add_scalar('data/train_loss_tar', float(shot_loss.avg), self.epoch)
self.writer.add_scalar('data/train_mae_tar', float(shot_mae.avg), self.epoch)
self.writer.add_scalar('data/train_mse_tar', float( np.sqrt(shot_mse.avg)), self.epoch)
self.writer.add_scalar('data/train_loss_sou', float(train_loss.avg), self.epoch)
self.writer.add_scalar('data/train_mae_sou', float(train_mae.avg), self.epoch)
self.writer.add_scalar('data/train_mse_sou', float(np.sqrt(train_mse.avg)), self.epoch)
# Start validation for this epoch, set model to eval mode
def fine_tune(self):
for i, (shot_img, shot_label) in enumerate(self.tar_shot_loader, 1):
if i <= 50:
shot_img = shot_img.cuda()
shot_label = shot_label.cuda()
shot_pred = self.tar_model(shot_img)
loss_mse = F.mse_loss(shot_pred.squeeze(), shot_label.squeeze())
loss = self.weight_decay_loss(self.tar_model, 1e-4) + loss_mse
self.tar_optimizer.zero_grad()
loss.backward()
self.tar_optimizer.step()
else:
break
def tar_model_V2(self, dataset, mode=None):# Run meta-validatio
self.tar_model.eval()
losses = AverageCategoryMeter(5)
maes = AverageCategoryMeter(5)
val_losses = AverageMeter()
val_maes = AverageMeter()
if mode =='val' :
for i, batch in enumerate(dataset, 1):
with torch.no_grad():
img = batch[0].cuda()
label = batch[1].cuda()
pred = self.tar_model(img)
self.mae_mse_update(pred, label, val_maes, losses=val_losses)
mae = np.average(val_maes.avg)
loss = np.average(val_losses.avg)
self.writer.add_scalar('data/val_mae', mae, self.epoch)
self.writer.add_scalar('data/val_loss',loss, self.epoch)
self.tar_model_record = update_model(
self.tar_model.module, self.epoch, self.exp_path, self.exp_name, [mae, 0, loss], self.tar_model_record,
self.log_txt)
print_summary(self.exp_name, [mae, 0, loss], self.tar_model_record)
else:
for i_sub, i_loader in enumerate(dataset, 0):
for i, batch in enumerate(i_loader, 1):
with torch.no_grad():
img = batch[0].cuda()
label = batch[1].cuda()
pred = self.tar_model(img)
self.mae_mse_update(pred,label,maes=maes,losses=losses,cls_id=i_sub)
if i == 1 and self.epoch%10==0:
vis_results(self.epoch, self.writer, self.restore_transform,
img, pred.data.cpu().numpy(), label.data.cpu().numpy(), self.exp_name)
mae = np.average(maes.avg)
loss = np.average(losses.avg)
self.writer.add_scalar("data/mae_s1", maes.avg[0], self.epoch)
self.writer.add_scalar("data/mae_s2", maes.avg[1], self.epoch)
self.writer.add_scalar("data/mae_s3", maes.avg[2], self.epoch)
self.writer.add_scalar("data/mae_s4", maes.avg[3], self.epoch)
self.writer.add_scalar("data/mae_s5", maes.avg[4], self.epoch)
self.writer.add_scalar("data/test_mae", float(mae), self.epoch)
self.writer.add_scalar('data/test_loss', float(loss), self.epoch)
logger_txt(self.log_txt, self.epoch, [mae, 0, loss])
self.tar_model_record['temp_test_mae'] = mae
self.tar_model_record['temp_test_mse'] = 0
# Print loss and maeuracy for this epoch
def tar_model_V1(self, dataset, mode=None):
self.tar_model.eval()
losses = AverageMeter()
maes = AverageMeter()
mses = AverageMeter()
ssims = AverageMeter()
psnrs = AverageMeter()
# tqdm_gen = tqdm.tqdm(dataset)
for i, batch in enumerate(dataset, 1):
with torch.no_grad():
img = batch[0].cuda()
label = batch[1].cuda()
pred = self.tar_model(img)
if mode == 'test':
self.mae_mse_update(pred, label, maes, mses, ssims,psnrs,losses)
else:
self.mae_mse_update(pred, label, maes, mses, losses=losses)
if i == 1 and self.epoch%10==0:
vis_results(self.epoch, self.writer, self.restore_transform,
img, pred.data.cpu().numpy(), label.cpu().detach().numpy(), self.exp_name)
mae = maes.avg
mse = np.sqrt(mses.avg)
loss = losses.avg
if mode == "val":
self.writer.add_scalar('data/val_mae', mae, self.epoch)
self.writer.add_scalar('data/val_mse', mse, self.epoch)
self.writer.add_scalar('data/val_loss',loss, self.epoch)
self.tar_model_record = update_model(
self.tar_model.module, self.epoch, self.exp_path, self.exp_name, [mae, mse, loss], self.tar_model_record,
self.log_txt)
print_summary(self.exp_name, [mae, mse, loss], self.tar_model_record)
elif mode == "test":
self.writer.add_scalar('data/test_mae', mae, self.epoch)
self.writer.add_scalar('data/test_mse', mse, self.epoch)
self.writer.add_scalar('data/test_loss',loss, self.epoch)
self.writer.add_scalar("data/test_ssim", ssims.avg, self.epoch)
self.writer.add_scalar("data/test_psnr", psnrs.avg, self.epoch)
self.tar_model_record['temp_test_mae'] = mae
self.tar_model_record['temp_test_mse'] = mse
logger_txt(self.log_txt, self.epoch, [mae, mse, loss])
def weight_decay_loss(self,model, lamda):
loss_weight = 0
loss_bias = 0
for name, param in model.named_parameters():
if 'nlt_weight' in name:
loss_weight += 0.5 * torch.sum(torch.pow(param - 1, 2))
elif 'nlt_bias' in name:
loss_bias += 0.5 * torch.sum(torch.pow(param, 2))
return lamda*loss_weight + lamda*10*loss_bias
def mae_mse_update(self,pred,label,maes,mses=None,ssims=None,psnrs=None,losses=None,cls_id=None):
for num in range(pred.size()[0]):
sub_pred = pred[num].data.cpu().squeeze().numpy()/ self.cfg_data.LOG_PARA
sub_label = label[num].data.cpu().squeeze().numpy() / self.cfg_data.LOG_PARA
pred_cnt = np.sum(sub_pred)
gt_cnt = np.sum(sub_label)
mae = abs(pred_cnt - gt_cnt)
mse = (pred_cnt - gt_cnt)*(pred_cnt - gt_cnt)
if ssims and psnrs is not None:
ssims.update(get_ssim(sub_label,sub_pred))
psnrs.update(get_psnr(sub_label,sub_pred))
if cls_id is not None:
maes.update(mae,cls_id)
if losses is not None:
loss = F.mse_loss(pred.detach().squeeze(), label.detach().squeeze())
losses.update(loss.item(),cls_id)
if mses is not None:
mses.update(mse,cls_id)
else:
maes.update(mae)
if losses is not None:
loss = F.mse_loss(pred.detach().squeeze(), label.detach().squeeze())
losses.update(loss.item())
if mses is not None:
mses.update(mse)
return pred_cnt,gt_cnt
class Fine_tune_Trainer(object):
def __init__(self, cfg_data, pwd):
self.cfg_data = cfg_data
self.pwd = pwd
self.exp_path = cfg.EXP_PATH
self.exp_name = cfg.EXP_NAME
self.exp_path = osp.join(self.exp_path, 'fine_tune')
if not osp.exists(self.exp_path):
os.mkdir(self.exp_path)
self.sou_query_loader, self.tar_shot_loader, self.tar_val_loader, self.tar_test_loader,self.restore_transform = loading_data(cfg)
self.sou_model = NLT_Counter( mode='fine_tune', backbone=cfg.model_type)
self.sou_optimizer = torch.optim.Adam(filter(lambda p: p.requires_grad, self.sou_model.parameters()), lr = cfg.fine_lr, weight_decay=cfg.fine_weight_decay)
self.sou_lr_scheduler = torch.optim.lr_scheduler.StepLR(self.sou_optimizer, step_size=cfg.fine_step_size, gamma=cfg.fine_gamma)
if cfg.GCC_pre_train_model is not None:
print('load GCC pre_trained model')
self.pretrained_dict = torch.load(cfg.GCC_pre_train_model)
self.sou_model.load_state_dict(self.pretrained_dict)
self.sou_model = torch.nn.DataParallel(self.sou_model).cuda()
self.sou_model_record = {"best_mae": 1e20, "best_mse": 1e20, "best_model_name": "", "update_flag": 0,
"temp_test_mae": 1e20, "temp_test_mse": 1e20}
self.epoch = 0
self.writer, self.log_txt = logger(self.exp_path, self.exp_name, self.pwd, ["exp"])
def forward(self):
timer = Timer()
self.global_count = 0
for epoch in range(1, cfg.max_epoch + 1):
self.train()
self.epoch = epoch
if self.epoch % cfg.val_freq == 0:
self.sou_model_V1(self.tar_val_loader, "val")
print('=' * 50)
print('Running Time: {}, Estimated Time: {}'.format(timer.measure(), timer.measure(self.epoch / cfg.max_epoch)))
self.sou_lr_scheduler.step()
self.writer.close()
def train(self):
self.sou_model.train()
train_loss = AverageMeter()
train_mae = AverageMeter()
train_mse = AverageMeter()
for i, (img,gt_map) in enumerate( self.tar_shot_loader, 1):
self.global_count = self.global_count + 1
shot_img, shot_label = img.cuda(), gt_map.cuda()
# ==================change sou_model parameters===============
shot_pred = self.sou_model(shot_img)
loss = F.mse_loss(shot_pred.squeeze(), shot_label.squeeze())
self.sou_optimizer.zero_grad()
loss.backward()
self.sou_optimizer.step()
train_loss.update(loss.item())
self.writer.add_scalar('data/fine_tune_loss', float(loss), self.global_count)
sou_pred_cnt, sou_label_cnt = self.mae_mse_update(shot_pred, shot_label, train_mae, train_mse)
# ===============================================================
if i % 50 == 0:
print('Epoch {}, Loss={:.4f} s_gt={:.1f} s_pre={:.1f}'.format(
self.epoch, loss.item(), sou_label_cnt,sou_pred_cnt))
self.writer.add_scalar('data/train_loss_tar', float(train_loss.avg), self.epoch)
self.writer.add_scalar('data/train_mae_tar', float(train_mae.avg), self.epoch)
self.writer.add_scalar('data/train_mse_tar', float(np.sqrt(train_mse.avg)), self.epoch)
# Start validation for this epoch, set model to eval mode
def validation(self):# Run meta-validation
self.sou_model.eval()
if cfg.target_dataset in ["WE", "SHFD"]:
val_loss =AverageCategoryMeter(5)
val_mae = AverageCategoryMeter(5)
# self.tar_model.eval()
for i_sub, i_loader in enumerate(self.tar_val_loader, 0):
tqdm_gen = tqdm.tqdm(i_loader)
for i, batch in enumerate(tqdm_gen, 1):
img = batch[0].cuda()
gt_map = batch[1].cuda()
with torch.no_grad():
pred = self.sou_model(inp=img)
self.mae_mse_update(pred, gt_map, val_mae,losses=val_loss,cls_id=i_sub)
if i == 1 :
vis_results(self.epoch, self.writer, self.restore_transform,
img, pred.data.cpu().numpy(), gt_map.data.cpu().numpy(), 'temp_val/sou')
mae = np.average(val_mae.avg)
loss = np.average(val_loss.avg)
self.writer.add_scalar("data/mae_s1", val_mae.avg[0], self.epoch)
self.writer.add_scalar("data/mae_s2", val_mae.avg[1], self.epoch)
self.writer.add_scalar("data/mae_s3", val_mae.avg[2], self.epoch)
self.writer.add_scalar("data/mae_s4", val_mae.avg[3], self.epoch)
self.writer.add_scalar("data/mae_s5", val_mae.avg[4], self.epoch)
self.writer.add_scalar("data/tar_val_mae", float(mae), self.epoch)
self.writer.add_scalar('data/tar_val_loss', float(loss), self.epoch)
# Print loss and maeuracy for this epoch
self.record = update_model(
self.sou_model.module, self.epoch, self.exp_path, self.exp_name, [mae, 0, loss], self.record,
self.log_txt)
print('Epoch {}, Val, mae={:.2f} mse={:.2f}'.format(self.epoch, mae, 0))
self.record['val_loss'].append(loss)
self.record['val_mae'].append(mae)
def sou_model_V1(self, dataset, mode=None):
self.sou_model.eval()
losses = AverageMeter()
maes = AverageMeter()
mses = AverageMeter()
ssims = AverageMeter()
psnrs = AverageMeter()
# tqdm_gen = tqdm.tqdm(dataset)
for i, batch in enumerate(dataset, 1):
with torch.no_grad():
img = batch[0].cuda()
label = batch[1].cuda()
pred = self.sou_model(img)
if mode == 'test':
self.mae_mse_update(pred, label, maes, mses, ssims,psnrs,losses)
else:
self.mae_mse_update(pred, label, maes, mses, losses=losses)
if i == 1 and self.epoch%10==0:
vis_results(self.epoch, self.writer, self.restore_transform,
img, pred.data.cpu().numpy(), label.cpu().detach().numpy(), self.exp_name)
mae = maes.avg
mse = np.sqrt(mses.avg)
loss = losses.avg
if mode == "val":
self.writer.add_scalar('data/val_mae', mae, self.epoch)
self.writer.add_scalar('data/val_mse', mse, self.epoch)
self.writer.add_scalar('data/val_loss',loss, self.epoch)
self.tar_model_record = update_model(
self.sou_model.module, self.epoch, self.exp_path, self.exp_name, [mae, mse, loss], self.sou_model_record,
self.log_txt)
print_summary(self.exp_name, [mae, mse, loss], self.sou_model_record)
elif mode == "test":
self.writer.add_scalar('data/test_mae', mae, self.epoch)
self.writer.add_scalar('data/test_mse', mse, self.epoch)
self.writer.add_scalar('data/test_loss',loss, self.epoch)
self.writer.add_scalar("data/test_ssim", ssims.avg, self.epoch)
self.writer.add_scalar("data/test_psnr", psnrs.avg, self.epoch)
self.tar_model_record['temp_test_mae'] = mae
self.tar_model_record['temp_test_mse'] = mse
logger_txt(self.log_txt, self.epoch, [mae, mse, loss])
def weight_decay_loss(self,model, lamda):
loss_weight = 0
loss_bias = 0
for name, param in model.named_parameters():
if 'mtl_weight' in name:
loss_weight += 0.5 * torch.sum(torch.pow(param - 1, 2))
elif 'mtl_bias' in name:
loss_bias += 0.5 * torch.sum(torch.pow(param,2))
return lamda*loss_weight + lamda*loss_bias
def mae_mse_update(self,pred,label,maes,mses=None,ssims=None,psnrs=None,losses=None,cls_id=None):
for num in range(pred.size()[0]):
sub_pred = pred[num].data.cpu().squeeze().numpy()/ self.cfg_data.LOG_PARA
sub_label = label[num].data.cpu().squeeze().numpy() / self.cfg_data.LOG_PARA
pred_cnt = np.sum(sub_pred)
gt_cnt = np.sum(sub_label)
mae = abs(pred_cnt - gt_cnt)
mse = (pred_cnt - gt_cnt)*(pred_cnt - gt_cnt)
if ssims and psnrs is not None:
ssims.update(get_ssim(sub_label,sub_pred))
psnrs.update(get_psnr(sub_label,sub_pred))
if cls_id is not None:
maes.update(mae,cls_id)
if losses is not None:
loss = F.mse_loss(pred.detach().squeeze(), label.detach().squeeze())
losses.update(loss.item(),cls_id)
if mses is not None:
mses.update(mse,cls_id)
else:
maes.update(mae)
if losses is not None:
loss = F.mse_loss(pred.detach().squeeze(), label.detach().squeeze())
losses.update(loss.item())
if mses is not None:
mses.update(mse)
return pred_cnt,gt_cnt
class PreTrainer(object):
"""The class that contains the code for the pretrain phase."""
def __init__(self, cfg, pwd):
# Set the folder to save the records and checkpoints
# Set cfg to be shareable in the class
self.cfg_data = cfg_data
self.pwd = pwd
self.exp_path = cfg.EXP_PATH
self.exp_name = cfg.EXP_NAME
self.exp_path = osp.join(self.exp_path, 'pre')
self.train_loader, self.val_loader, self.restore_transform = loading_data(
cfg)
self.model = NLT_Counter(mode='pre', backbone=cfg.model_type)
if cfg.init_weights is not None:
self.pretrained_dict = torch.load(cfg.init_weights) # ['params']
self.model.load_state_dict(self.pretrained_dict)
self.optimizer = torch.optim.Adam(self.model.parameters(),
lr=cfg.pre_lr,
weight_decay=cfg.pre_weight_decay)
self.lr_scheduler = torch.optim.lr_scheduler.StepLR(
self.optimizer, step_size=cfg.pre_step_size, gamma=cfg.pre_gamma)
if torch.cuda.is_available():
torch.backends.cudnn.benchmark = True
os.environ["CUDA_VISIBLE_DEVICES"] = cfg.gpu_id
self.model = torch.nn.DataParallel(self.model).cuda()
self.record = {}
self.record['train_loss'] = []
self.record['train_mae'] = []
self.record['train_mse'] = []
self.record['val_loss'] = []
self.record['val_mae'] = []
self.record['val_mse'] = []
self.record['best_mae'] = 1e10
self.record['best_mse'] = 1e10
self.record['best_model_name'] = ''
self.record['update_flag'] = 0
self.writer, self.log_txt = logger(self.exp_path, self.exp_name,
self.pwd, ["exp"])
def save_model(self, name):
torch.save(dict(params=self.model.module.state_dict()),
osp.join(self.exp_path, self.exp_name, name + '.pth'))
def train(self):
"""The function for the pre_train on GCC dataset."""
# Set the timer
timer = Timer()
# Set global count to zero
global_count = 0
for epoch in range(1, cfg.pre_max_epoch + 1):
self.model.train()
train_loss_avg = Averager()
train_mae_avg = Averager()
train_mse_avg = Averager()
# Using tqdm to read samples from train loader
tqdm_gen = tqdm.tqdm(self.train_loader)
for i, batch in enumerate(tqdm_gen, 1):
global_count = global_count + 1
img = batch[0].cuda()
label = batch[1].cuda()
pred = self.model(img)
loss = F.mse_loss(pred.squeeze(), label)
# Print loss and maeuracy for this step
label_cnt = label.sum().data / self.cfg_data.LOG_PARA
pred_cnt = pred.sum().data / self.cfg_data.LOG_PARA
mae = torch.abs(label_cnt - pred_cnt).item()
mse = (label_cnt - pred_cnt).pow(2).item()
tqdm_gen.set_description(
'Epoch {}, Loss={:.4f} gt={:.1f} pred={:.1f} lr={:.4f}'.
format(epoch, loss.item(), label_cnt, pred_cnt,
self.optimizer.param_groups[0]['lr'] * 10000))
# # Add loss and maeuracy for the averagers
train_loss_avg.add(loss.item())
train_mae_avg.add(mae)
train_mse_avg.add(mse)
# Loss backwards and optimizer updates
self.optimizer.zero_grad()
loss.backward()
self.optimizer.step()
# Update the averagers
train_loss_avg = train_loss_avg.item()
train_mae_avg = train_mae_avg.item()
train_mse_avg = np.sqrt(train_mse_avg.item())
self.writer.add_scalar('data/loss', train_loss_avg, global_count)
self.writer.add_scalar('data/mae', train_mae_avg, global_count)
self.writer.add_scalar('data/mse', train_mse_avg, global_count)
# Start validation for this epoch, set model to eval mode
self.model.eval()
val_loss_avg = Averager()
val_mae_avg = Averager()
val_mse_avg = Averager()
# Print previous information
if epoch % 10 == 0:
print('Best Epoch {}, Best Val mae={:.2f} mae={:.2f}'.format(
self.record['best_model_name'], self.record['best_mae'],
self.record['best_mse']))
# Run validation
for i, batch in enumerate(self.val_loader, 1):
# print(i)
with torch.no_grad():
data = batch[0].cuda()
label = batch[1].cuda()
pred = self.model(inp=data)
loss = F.mse_loss(pred.squeeze(), label)
val_loss_avg.add(loss.item())
for img in range(pred.size()[0]):
pred_cnt = (pred[img] /
self.cfg_data.LOG_PARA).sum().data
gt_cnt = (label[img] /
self.cfg_data.LOG_PARA).sum().data
mae = torch.abs(pred_cnt - gt_cnt).item()
mse = (pred_cnt - gt_cnt).pow(2).item()
val_mae_avg.add(mae)
val_mse_avg.add(mse)
# Update validation averagers
val_loss_avg = val_loss_avg.item()
val_mae_avg = val_mae_avg.item()
val_mse_avg = np.sqrt(val_mse_avg.item())
self.writer.add_scalar('data/val_loss', float(val_loss_avg), epoch)
self.writer.add_scalar('data/val_mae', float(val_mae_avg), epoch)
self.writer.add_scalar('data/val_mse', float(val_mse_avg), epoch)
# Print loss and maeuracy for this epoch
print('Epoch {}, Val, Loss={:.4f} mae={:.4f} mse={:.4f}'.format(
epoch, val_loss_avg, val_mae_avg, val_mse_avg))
# Save model every 10 epochs
if epoch % 10 == 0:
self.save_model('epoch' + str(epoch) + '_' + str(val_mae_avg))
# Update the logs
self.record['train_loss'].append(train_loss_avg)
self.record['train_mae'].append(train_mae_avg)
self.record['train_mse'].append(train_mse_avg)
self.record['val_loss'].append(val_loss_avg)
self.record['val_mae'].append(val_mae_avg)
self.record = update_model(
self.model.module, epoch, self.exp_path, self.exp_name,
[val_mae_avg, val_mse_avg, val_loss_avg], self.record,
self.log_txt)
if epoch % 10 == 0:
print('Running Time: {}, Estimated Time: {}'.format(
timer.measure(), timer.measure(epoch / cfg.max_epoch)))
self.lr_scheduler.step()
self.writer.close()
class den_test:
def __init__(self, model_path, tar_list, tarRoot, cfg_data, img_transform):
self.cfg_data = cfg_data
self.img_transform = img_transform
self.tarRoot = tarRoot
self.net = NLT_Counter(mode='nlt', backbone=cfg.model_type)
self.net.load_state_dict(torch.load(model_path))
self.net = torch.nn.DataParallel(self.net).cuda()
self.net.eval()
with open(tar_list) as f:
lines = f.readlines()
self.tar_list = []
for line in lines:
line = line.strip('\n')
self.tar_list.append(line)
def forward(self):
score = {'MAE': 0, 'MSE': 0, 'PSNR': 0, 'SSIM': 0}
count = 0
tar_list = tqdm.tqdm(self.tar_list)
for fname in tar_list:
count += 1
imgname = os.path.join(self.tarRoot + "/train/img/" + fname +
'.jpg')
# filename_no_ext = filename.split('.')[0]
denname = imgname.replace('img', 'den').replace('jpg', 'csv')
# denname = os.path.join(self.tarRoot + "/test/den/" + fname + ".csv")
den = pd.read_csv(denname, sep=',', header=None).values
den = den.astype(np.float32, copy=False)
img = Image.open(imgname)
if img.mode == 'L':
img = img.convert('RGB')
img = self.img_transform(img)
gt = np.sum(den)
img = img[None, :, :, :].cuda()
pred_map = self.net(img)
pred_map = pred_map.cpu().data.numpy()[0, 0, :, :]
pred = np.sum(pred_map) / self.cfg_data.LOG_PARA
score['MAE'] += np.abs(gt - pred)
score['MSE'] += (gt - pred) * (gt - pred)
score['SSIM'] += get_ssim(den, pred_map)
score['PSNR'] += get_psnr(den, pred_map)
pred_map = pred_map / np.max(pred_map + 1e-20)
den = den / np.max(den + 1e-20)
den_frame = plt.gca()
plt.imshow(den, cmap='jet')
den_frame.axes.get_yaxis().set_visible(False)
den_frame.axes.get_xaxis().set_visible(False)
den_frame.spines['top'].set_visible(False)
den_frame.spines['bottom'].set_visible(False)
den_frame.spines['left'].set_visible(False)
den_frame.spines['right'].set_visible(False)
plt.savefig(den_path+'/'+fname+'_gt_'+str(int(gt))+'.png',\
bbox_inches='tight',pad_inches=0,dpi=600)
plt.close()
# sio.savemat(exp_name+'/'+filename_no_ext+'_gt_'+str(int(gt))+'.mat',{'data':den})
pred_frame = plt.gca()
plt.imshow(pred_map, cmap='jet')
pred_frame.axes.get_yaxis().set_visible(False)
pred_frame.axes.get_xaxis().set_visible(False)
pred_frame.spines['top'].set_visible(False)
pred_frame.spines['bottom'].set_visible(False)
pred_frame.spines['left'].set_visible(False)
pred_frame.spines['right'].set_visible(False)
plt.savefig(den_path+'/'+fname+'_DA_'+str(float(pred))+'.png',\
bbox_inches='tight',pad_inches=0,dpi=600)
plt.close()
score['MAE'], score['MSE'] = score['MAE'] / count, np.sqrt(
score['MSE'] / count)
score['SSIM'], score[
'PSNR'] = score['SSIM'] / count, score['PSNR'] / count
print("processed MAE_in: %.2f MSE_in: %.2f" %
(score['MAE'], score['MSE']))
print("processed PSNR: %.2f SSIM: %.2f" %
(score['PSNR'], score['SSIM']))