save_exp_name = method + '_' + dataset_name + '_' + 'v1'
remove_all_log = False # remove all historical experiments in TensorBoard
exp_name = None # the previous experiment name in TensorBoard
# ------------
rand_seed = 64678
if rand_seed is not None:
np.random.seed(rand_seed)
torch.manual_seed(rand_seed)
torch.cuda.manual_seed(rand_seed)
# load net
net = CrowdCounter()
network.weights_normal_init(net, dev=0.01)
net.cuda()
net.train()
params = list(net.parameters())
optimizer = torch.optim.Adam(filter(lambda p: p.requires_grad,
net.parameters()),
lr=lr)
if not os.path.exists(output_dir):
os.mkdir(output_dir)
# tensorboad
use_tensorboard = use_tensorboard and CrayonClient is not None
if use_tensorboard:
cc = CrayonClient(hostname='127.0.0.1')
if remove_all_log:
cc.remove_all_experiments()
def main():
parser = argparse.ArgumentParser(description='mcnn worldexp.')
parser.add_argument('--preload', type=int, default=1)
parser.add_argument('--data', type=str, default="/mnt/m2/mzcc/crowd_data/worldexpo", help='train, test, etc')
args = parser.parse_args()
method = 'mcnn'
dataset_name = 'worldexpo'
output_dir = './saved_models/'
data_path = args.data
train_path = data_path+'/train_frame'
train_gt_path = data_path+'/train_dmap'
train_mask_path = os.path.join(data_path,'train_roi')
val_path = data_path+'/test_frame'
val_gt_path = data_path+'/test_dmap'
val_mask_path = os.path.join(data_path, 'test_roi')
#training configuration
start_step = 0
end_step = 3000
lr = 0.000001
momentum = 0.9
disp_interval = 500
log_interval = 250
#Tensorboard config
use_tensorboard = False
save_exp_name = method + '_' + dataset_name + '_' + 'v1'
remove_all_log = False # remove all historical experiments in TensorBoard
exp_name = None # the previous experiment name in TensorBoard
# ------------
rand_seed = 64678
if rand_seed is not None:
np.random.seed(rand_seed)
torch.manual_seed(rand_seed)
torch.cuda.manual_seed(rand_seed)
# load net
net = CrowdCounter()
network.weights_normal_init(net, dev=0.01)
# network.weights_xavier_init(net, gain=0.01)
net.cuda()
net.train()
params = list(net.parameters())
optimizer = torch.optim.Adam(filter(lambda p: p.requires_grad, net.parameters()), lr=lr)
if not os.path.exists(output_dir):
os.mkdir(output_dir)
# tensorboad
use_tensorboard = use_tensorboard and CrayonClient is not None
if use_tensorboard:
cc = CrayonClient(hostname='127.0.0.1')
if remove_all_log:
cc.remove_all_experiments()
if exp_name is None:
exp_name = save_exp_name
exp = cc.create_experiment(exp_name)
else:
exp = cc.open_experiment(exp_name)
# training
train_loss = 0
step_cnt = 0
re_cnt = False
t = Timer()
t.tic()
data_loader = ExrImageDataLoader(train_path, train_gt_path, mask_path=train_mask_path,
shuffle=True, gt_downsample=True, pre_load=args.preload)
data_loader_val = ExrImageDataLoader(val_path, val_gt_path, mask_path=val_mask_path,
shuffle=False, gt_downsample=True, pre_load=False)
best_mae = 10000000
for epoch in range(start_step, end_step+1):
step = -1
train_loss = 0
for blob in data_loader:
step = step + 1
im_data = blob['data']
gt_data = blob['gt_density']
mask = blob['mask']
density_map = net(im_data, gt_data, mask=mask)
loss = net.loss
train_loss += loss.item()#.data[0]
step_cnt += 1
optimizer.zero_grad()
loss.backward()
optimizer.step()
if step % disp_interval == 0:
print("current loss: {}".format(loss.item()))
duration = t.toc(average=False)
fps = step_cnt / duration
gt_count = np.sum(gt_data)
density_map = density_map.data.cpu().numpy()
et_count = np.sum(density_map)
utils.save_results(im_data,gt_data,density_map, output_dir)
log_text = 'epoch: %4d, step %4d, Time: %.4fs, gt_cnt: %4.1f, et_cnt: %4.1f' % (epoch,
step, 1./fps, gt_count,et_count)
log_print(log_text, color='green', attrs=['bold'])
re_cnt = True
if re_cnt:
t.tic()
re_cnt = False
if (epoch % 2 == 0):
save_name = os.path.join(output_dir, '{}_{}_{}.h5'.format(method,dataset_name,epoch))
network.save_net(save_name, net)
#calculate error on the validation dataset
mae,mse = evaluate_model(save_name, data_loader_val)
if mae < best_mae:
best_mae = mae
best_mse = mse
best_model = '{}_{}_{}.h5'.format(method,dataset_name,epoch)
log_text = 'EPOCH: %d, MAE: %.1f, MSE: %0.1f' % (epoch,mae,mse)
log_print(log_text, color='green', attrs=['bold'])
log_text = 'BEST MAE: %0.1f, BEST MSE: %0.1f, BEST MODEL: %s' % (best_mae,best_mse, best_model)
log_print(log_text, color='green', attrs=['bold'])
if use_tensorboard:
exp.add_scalar_value('MAE', mae, step=epoch)
exp.add_scalar_value('MSE', mse, step=epoch)
exp.add_scalar_value('train_loss', train_loss/data_loader.get_num_samples(), step=epoch)