def test_augment(img, mask=None, model='scale'):
if model == 'scale':
return DualCompose([
Scale(size=128),
ImageOnly(
Normalize(mean=(0.485, 0.456, 0.406),
std=(0.229, 0.224, 0.225)))
])(img, mask=None)
else:
return DualCompose([
Centerpad(size=(128, 128)),
ImageOnly(
Normalize(mean=(0.485, 0.456, 0.406),
std=(0.229, 0.224, 0.225)))
])(img, mask=None)
def train_augment(img,mask,prob=0.5):
return DualCompose([HorizontalFlip(prob=0.5),ShiftScale(limit=4,prob=0.5),
OneOf([#ImageOnly(CLAHE(clipLimit=2.0, tileGridSize=(8, 8))),
ImageOnly(Brightness_shift(limit=0.1)),
ImageOnly(do_Gamma(limit=0.08)),
ImageOnly(Brightness_multiply(limit=0.08)),
],prob=0.5),
ImageOnly(Median_blur( ksize=3, prob=.15)),
Scale(size=pad),
#Centerpad(size=(pad,pad)),
ImageOnly(Normalize(mean=(0.485, 0.456, 0.406), std=(0.229, 0.224, 0.225)))
#OneOf([Scale(size=128),Randompadding(size=(128,128))],prob=1),
#RandomErasing(probability = 0.22, sl = 0.02, sh = 0.2, r1 = 0.2, mean=[0.4914, 0.4822, 0.4465])
])(img,mask)
from torch.utils.data import DataLoader
from torch.nn import functional as F
# from prepare_data import (original_height,
# original_width,
# h_start, w_start
# )
# from crop_utils import join_mask
# import crowdai
from validation import convert_bin_coco
from transforms import (ImageOnly, Normalize, RandomCrop, DualCompose, Rescale)
img_transform = DualCompose([
# RandomCrop([128, 128]),
# Rescale([256, 256]),
ImageOnly(Normalize(mean=(0), std=(1)))
])
PAD = (13, 13, 14, 14)
def get_model(model_path, model_type='unet11', problem_type='parts'):
"""
:param model_path:
:param model_type: 'UNet', 'UNet16', 'UNet11', 'LinkNet34'
:param problem_type: 'binary', 'parts', 'instruments'
:return:
"""
num_classes = 1
def main():
parser = argparse.ArgumentParser()
arg = parser.add_argument
arg('--jaccard-weight', default=0.3, type=float)
arg('--device-ids',
type=str,
default='0',
help='For example 0,1 to run on two GPUs')
arg('--fold', type=int, help='fold', default=0)
arg('--root', default='runs/debug', help='checkpoint root')
arg('--batch-size', type=int, default=1)
arg('--limit', type=int, default=10000, help='number of images in epoch')
arg('--n-epochs', type=int, default=100)
arg('--lr', type=float, default=0.0001)
arg('--workers', type=int, default=12)
arg('--model',
type=str,
default='UNet',
choices=['UNet', 'UNet11', 'UNet16', 'AlbuNet34'])
args = parser.parse_args()
root = Path(args.root)
root.mkdir(exist_ok=True, parents=True)
num_classes = 1
if args.model == 'UNet':
model = UNet(num_classes=num_classes)
elif args.model == 'UNet11':
model = UNet11(num_classes=num_classes, pretrained=True)
elif args.model == 'UNet16':
model = UNet16(num_classes=num_classes, pretrained=True)
elif args.model == 'LinkNet34':
model = LinkNet34(num_classes=num_classes, pretrained=True)
elif args.model == 'AlbuNet':
model = AlbuNet34(num_classes=num_classes, pretrained=True)
else:
model = UNet(num_classes=num_classes, input_channels=3)
if torch.cuda.is_available():
if args.device_ids:
device_ids = list(map(int, args.device_ids.split(',')))
else:
device_ids = None
model = nn.DataParallel(model, device_ids=device_ids).cuda()
loss = LossBinary(jaccard_weight=args.jaccard_weight)
cudnn.benchmark = True
def make_loader(file_names, shuffle=False, transform=None, limit=None):
return DataLoader(dataset=AngyodysplasiaDataset(file_names,
transform=transform,
limit=limit),
shuffle=shuffle,
num_workers=args.workers,
batch_size=args.batch_size,
pin_memory=torch.cuda.is_available())
train_file_names, val_file_names = get_split(args.fold)
print('num train = {}, num_val = {}'.format(len(train_file_names),
len(val_file_names)))
train_transform = DualCompose([
SquarePaddingTraining(),
CenterCrop([574, 574]),
HorizontalFlip(),
VerticalFlip(),
Rotate(),
ImageOnly(RandomHueSaturationValue()),
ImageOnly(Normalize())
])
val_transform = DualCompose([
SquarePaddingTraining(),
CenterCrop([574, 574]),
ImageOnly(Normalize())
])
train_loader = make_loader(train_file_names,
shuffle=True,
transform=train_transform,
limit=args.limit)
valid_loader = make_loader(val_file_names, transform=val_transform)
root.joinpath('params.json').write_text(
json.dumps(vars(args), indent=True, sort_keys=True))
utils.train(init_optimizer=lambda lr: Adam(model.parameters(), lr=lr),
args=args,
model=model,
criterion=loss,
train_loader=train_loader,
valid_loader=valid_loader,
validation=validation_binary,
fold=args.fold)
# h_start, w_start
# )
# from crop_utils import join_mask
import crowdai
from validation import convert_bin_coco
from transforms import (ImageOnly,
Normalize,
RandomCrop,
DualCompose,
Rescale)
img_transform = DualCompose([
# RandomCrop([128, 128]),
Rescale([256, 256]),
ImageOnly(Normalize())
])
def get_model(model_path, model_type='unet11', problem_type='parts'):
"""
:param model_path:
:param model_type: 'UNet', 'UNet16', 'UNet11', 'LinkNet34'
:param problem_type: 'binary', 'parts', 'instruments'
:return:
"""
num_classes = 1
# if model_type == 'UNet16':
# model = UNet16(num_classes=num_classes)
def main():
parser = argparse.ArgumentParser()
arg = parser.add_argument
arg('--jaccard-weight', default=1, type=float)
arg('--device-ids',
type=str,
default='0',
help='For example 0,1 to run on two GPUs')
arg('--fold', type=int, help='fold', default=0)
arg('--root', default='runs/debug', help='checkpoint root')
arg('--batch-size', type=int, default=1)
arg('--n-epochs', type=int, default=10)
arg('--lr', type=float, default=0.0002)
arg('--workers', type=int, default=10)
arg('--type',
type=str,
default='binary',
choices=['binary', 'parts', 'instruments'])
arg('--model',
type=str,
default='DLinkNet',
choices=['UNet', 'UNet11', 'LinkNet34', 'DLinkNet'])
args = parser.parse_args()
root = Path(args.root)
root.mkdir(exist_ok=True, parents=True)
if args.type == 'parts':
num_classes = 4
elif args.type == 'instruments':
num_classes = 8
else:
num_classes = 1
if args.model == 'UNet':
model = UNet(num_classes=num_classes)
elif args.model == 'UNet11':
model = UNet11(num_classes=num_classes, pretrained='vgg')
elif args.model == 'UNet16':
model = UNet16(num_classes=num_classes, pretrained='vgg')
elif args.model == 'LinkNet34':
model = LinkNet34(num_classes=num_classes, pretrained=True)
elif args.model == 'DLinkNet':
model = D_LinkNet34(num_classes=num_classes, pretrained=True)
else:
model = UNet(num_classes=num_classes, input_channels=3)
if torch.cuda.is_available():
if args.device_ids:
device_ids = list(map(int, args.device_ids.split(',')))
else:
device_ids = None
model = nn.DataParallel(model, device_ids=device_ids).cuda()
if args.type == 'binary':
# loss = LossBinary(jaccard_weight=args.jaccard_weight)
loss = LossBCE_DICE()
else:
loss = LossMulti(num_classes=num_classes,
jaccard_weight=args.jaccard_weight)
cudnn.benchmark = True
def make_loader(file_names,
shuffle=False,
transform=None,
problem_type='binary'):
return DataLoader(dataset=RoboticsDataset(file_names,
transform=transform,
problem_type=problem_type),
shuffle=shuffle,
num_workers=args.workers,
batch_size=args.batch_size,
pin_memory=torch.cuda.is_available())
# train_file_names, val_file_names = get_split(args.fold)
train_file_names, val_file_names = get_train_val_files()
print('num train = {}, num_val = {}'.format(len(train_file_names),
len(val_file_names)))
train_transform = DualCompose(
[HorizontalFlip(),
VerticalFlip(),
ImageOnly(Normalize())])
val_transform = DualCompose([ImageOnly(Normalize())])
train_loader = make_loader(train_file_names,
shuffle=True,
transform=train_transform,
problem_type=args.type)
valid_loader = make_loader(val_file_names,
transform=val_transform,
problem_type=args.type)
root.joinpath('params.json').write_text(
json.dumps(vars(args), indent=True, sort_keys=True))
if args.type == 'binary':
valid = validation_binary
else:
valid = validation_multi
utils.train(init_optimizer=lambda lr: Adam(model.parameters(), lr=lr),
args=args,
model=model,
criterion=loss,
train_loader=train_loader,
valid_loader=valid_loader,
validation=valid,
fold=args.fold,
num_classes=num_classes)
def main():
parser = argparse.ArgumentParser()
arg = parser.add_argument
arg('--jaccard-weight', default=0.3, type=float)
arg('--device-ids', type=str, default='0', help='For example 0,1 to run on two GPUs')
arg('--fold', type=int, help='fold', default=0)
arg('--root', default='runs/debug', help='checkpoint root')
arg('--batch-size', type=int, default=1)
arg('--limit', type=int, default=10000, help='number of images in epoch')
arg('--n-epochs', type=int, default=100)
arg('--lr', type=float, default=0.001)
arg('--workers', type=int, default=12)
arg('--model', type=str, default='UNet', choices=['UNet', 'UNet11', 'LinkNet34', 'UNet16', 'AlbuNet34', 'MDeNet', 'EncDec', 'hourglass', 'MDeNetplus'])
args = parser.parse_args()
root = Path(args.root)
root.mkdir(exist_ok=True, parents=True)
num_classes = 1
if args.model == 'UNet':
model = UNet(num_classes=num_classes)
elif args.model == 'UNet11':
model = UNet11(num_classes=num_classes, pretrained=True)
elif args.model == 'UNet16':
model = UNet16(num_classes=num_classes, pretrained=True)
elif args.model == 'MDeNet':
print('Mine MDeNet..................')
model = MDeNet(num_classes=num_classes, pretrained=True)
elif args.model == 'MDeNetplus':
print('load MDeNetplus..................')
model = MDeNetplus(num_classes=num_classes, pretrained=True)
elif args.model == 'EncDec':
print('Mine EncDec..................')
model = EncDec(num_classes=num_classes, pretrained=True)
elif args.model == 'GAN':
model = GAN(num_classes=num_classes, pretrained=True)
elif args.model == 'AlbuNet34':
model = AlbuNet34(num_classes=num_classes, pretrained=False)
elif args.model == 'hourglass':
model = hourglass(num_classes=num_classes, pretrained=True)
else:
model = UNet(num_classes=num_classes, input_channels=3)
if torch.cuda.is_available():
if args.device_ids:
device_ids = list(map(int, args.device_ids.split(',')))
else:
device_ids = None
model = nn.DataParallel(model).cuda() # nn.DataParallel(model, device_ids=device_ids).cuda()
cudnn.benchmark = True
def make_loader(file_names, shuffle=False, transform=None, limit=None):
return DataLoader(
dataset=Polyp(file_names, transform=transform, limit=limit),
shuffle=shuffle,
num_workers=args.workers,
batch_size=args.batch_size,
pin_memory=torch.cuda.is_available()
)
train_file_names, val_file_names = get_split(args.fold)
print('num train = {}, num_val = {}'.format(len(train_file_names), len(val_file_names)))
train_transform = DualCompose([
CropCVC612(),
img_resize(512),
HorizontalFlip(),
VerticalFlip(),
Rotate(),
Rescale(),
Zoomin(),
ImageOnly(RandomHueSaturationValue()),
ImageOnly(Normalize())
])
train_loader = make_loader(train_file_names, shuffle=True, transform=train_transform, limit=args.limit)
root.joinpath('params.json').write_text(
json.dumps(vars(args), indent=True, sort_keys=True))
utils.train(
args=args,
model=model,
train_loader=train_loader,
fold=args.fold
)
def main():
parser = argparse.ArgumentParser()
arg = parser.add_argument
arg('--jaccard-weight', default=1, type=float)
arg('--device-ids',
type=str,
default='0',
help='For example 0,1 to run on two GPUs')
arg('--fold', type=int, help='fold', default=0)
arg('--root', default='runs/debug', help='checkpoint root')
arg('--batch-size', type=int, default=8)
arg('--n-epochs', type=int, default=14)
arg('--lr', type=float, default=0.000001)
arg('--workers', type=int, default=8)
arg('--type',
type=str,
default='binary',
choices=['binary', 'parts', 'instruments'])
arg('--model',
type=str,
default='TernausNet',
choices=['UNet', 'UNet11', 'LinkNet34', 'TernausNet'])
args = parser.parse_args()
root = Path(args.root)
root.mkdir(exist_ok=True, parents=True)
if args.type == 'parts':
num_classes = 3
elif args.type == 'instruments':
num_classes = 8
else:
num_classes = 1
if args.model == 'TernausNet':
model = TernausNet34(num_classes=num_classes)
else:
model = TernausNet34(num_classes=num_classes)
if torch.cuda.is_available():
if args.device_ids:
device_ids = list(map(int, args.device_ids.split(',')))
else:
device_ids = None
model = nn.DataParallel(model, device_ids=device_ids).cuda()
if args.type == 'binary':
loss = LossBinary(jaccard_weight=args.jaccard_weight)
else:
loss = LossMulti(num_classes=num_classes,
jaccard_weight=args.jaccard_weight)
cudnn.benchmark = True
def make_loader(file_names,
shuffle=False,
transform=None,
mode='train',
problem_type='binary'):
return DataLoader(dataset=MapDataset(file_names,
transform=transform,
problem_type=problem_type,
mode=mode),
shuffle=shuffle,
num_workers=args.workers,
batch_size=args.batch_size,
pin_memory=torch.cuda.is_available())
# labels = pd.read_csv('data/stage1_train_labels.csv')
# labels = os.listdir('data/stage1_train_')
# train_file_names, val_file_names = train_test_split(labels, test_size=0.2, random_state=42)
# print('num train = {}, num_val = {}'.format(len(train_file_names), len(val_file_names)))
# train_transform = DualCompose([
# HorizontalFlip(),
# VerticalFlip(),
# RandomCrop([256, 256]),
# RandomRotate90(),
# ShiftScaleRotate(),
# ImageOnly(RandomHueSaturationValue()),
# ImageOnly(RandomBrightness()),
# ImageOnly(RandomContrast()),
# ImageOnly(Normalize())
# ])
train_transform = DualCompose([
OneOrOther(*(OneOf([
Distort1(distort_limit=0.05, shift_limit=0.05),
Distort2(num_steps=2, distort_limit=0.05)
]),
ShiftScaleRotate(shift_limit=0.0625,
scale_limit=0.10,
rotate_limit=45)),
prob=0.5),
RandomRotate90(),
RandomCrop([256, 256]),
RandomFlip(prob=0.5),
Transpose(prob=0.5),
ImageOnly(RandomContrast(limit=0.2, prob=0.5)),
ImageOnly(RandomFilter(limit=0.5, prob=0.2)),
ImageOnly(RandomHueSaturationValue(prob=0.2)),
ImageOnly(RandomBrightness()),
ImageOnly(Normalize())
])
val_transform = DualCompose([
# RandomCrop([256, 256]),
Rescale([256, 256]),
ImageOnly(Normalize())
])
train_loader = make_loader(TRAIN_ANNOTATIONS_PATH,
shuffle=True,
transform=train_transform,
problem_type=args.type)
valid_loader = make_loader(VAL_ANNOTATIONS_PATH,
transform=val_transform,
mode='valid',
problem_type=args.type)
root.joinpath('params.json').write_text(
json.dumps(vars(args), indent=True, sort_keys=True))
if args.type == 'binary':
valid = validation_binary
else:
valid = validation_multi
utils.train(init_optimizer=lambda lr: Adam(model.parameters(), lr=lr),
args=args,
model=model,
criterion=loss,
train_loader=train_loader,
valid_loader=valid_loader,
validation=valid,
fold=args.fold,
num_classes=num_classes)
from prepare_train_val import get_split
from dataset import Polyp
import cv2
from models import UNet, UNet11, UNet16, AlbuNet34, MDeNet, EncDec, hourglass, MDeNetplus
import torch
from pathlib import Path
from tqdm import tqdm
import numpy as np
import utils
# import prepare_data
from torch.utils.data import DataLoader
from torch.nn import functional as F
from transforms import (ImageOnly, Normalize, CenterCrop, DualCompose)
img_transform = DualCompose([CenterCrop(512), ImageOnly(Normalize())])
def get_model(model_path, model_type):
"""
:param model_path:
:param model_type: 'UNet', 'UNet11', 'UNet16', 'AlbuNet34'
:return:
"""
num_classes = 1
if model_type == 'UNet11':
model = UNet11(num_classes=num_classes)
elif model_type == 'UNet16':
def main():
parser = argparse.ArgumentParser()
arg = parser.add_argument
arg('--jaccard-weight', type=float, default=1)
arg('--root', type=str, default='runs/debug', help='checkpoint root')
arg('--image-path', type=str, default='data', help='image path')
arg('--batch-size', type=int, default=2)
arg('--n-epochs', type=int, default=100)
arg('--optimizer', type=str, default='Adam', help='Adam or SGD')
arg('--lr', type=float, default=0.001)
arg('--workers', type=int, default=10)
arg('--model',
type=str,
default='UNet16',
choices=[
'UNet', 'UNet11', 'UNet16', 'LinkNet34', 'FCDenseNet57',
'FCDenseNet67', 'FCDenseNet103'
])
arg('--model-weight', type=str, default=None)
arg('--resume-path', type=str, default=None)
arg('--attribute',
type=str,
default='all',
choices=[
'pigment_network', 'negative_network', 'streaks',
'milia_like_cyst', 'globules', 'all'
])
args = parser.parse_args()
## folder for checkpoint
root = Path(args.root)
root.mkdir(exist_ok=True, parents=True)
image_path = args.image_path
#print(args)
if args.attribute == 'all':
num_classes = 5
else:
num_classes = 1
args.num_classes = num_classes
### save initial parameters
print('--' * 10)
print(args)
print('--' * 10)
root.joinpath('params.json').write_text(
json.dumps(vars(args), indent=True, sort_keys=True))
## load pretrained model
if args.model == 'UNet':
model = UNet(num_classes=num_classes)
elif args.model == 'UNet11':
model = UNet11(num_classes=num_classes, pretrained='vgg')
elif args.model == 'UNet16':
model = UNet16(num_classes=num_classes, pretrained='vgg')
elif args.model == 'LinkNet34':
model = LinkNet34(num_classes=num_classes, pretrained=True)
elif args.model == 'FCDenseNet103':
model = FCDenseNet103(num_classes=num_classes)
else:
model = UNet(num_classes=num_classes, input_channels=3)
## multiple GPUs
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
if torch.cuda.device_count() > 1:
model = nn.DataParallel(model)
model.to(device)
## load pretrained model
if args.model_weight is not None:
state = torch.load(args.model_weight)
#epoch = state['epoch']
#step = state['step']
model.load_state_dict(state['model'])
print('--' * 10)
print('Load pretrained model', args.model_weight)
#print('Restored model, epoch {}, step {:,}'.format(epoch, step))
print('--' * 10)
## replace the last layer
## although the model and pre-trained weight have differernt size (the last layer is different)
## pytorch can still load the weight
## I found that the weight for one layer just duplicated for all layers
## therefore, the following code is not necessary
# if args.attribute == 'all':
# model = list(model.children())[0]
# num_filters = 32
# model.final = nn.Conv2d(num_filters, num_classes, kernel_size=1)
# print('--' * 10)
# print('Load pretrained model and replace the last layer', args.model_weight, num_classes)
# print('--' * 10)
# if torch.cuda.device_count() > 1:
# model = nn.DataParallel(model)
# model.to(device)
## model summary
print_model_summay(model)
## define loss
loss_fn = LossBinary(jaccard_weight=args.jaccard_weight)
## It enables benchmark mode in cudnn.
## benchmark mode is good whenever your input sizes for your network do not vary. This way, cudnn will look for the
## optimal set of algorithms for that particular configuration (which takes some time). This usually leads to faster runtime.
## But if your input sizes changes at each iteration, then cudnn will benchmark every time a new size appears,
## possibly leading to worse runtime performances.
cudnn.benchmark = True
## get train_test_id
train_test_id = get_split()
## train vs. val
print('--' * 10)
print('num train = {}, num_val = {}'.format(
(train_test_id['Split'] == 'train').sum(),
(train_test_id['Split'] != 'train').sum()))
print('--' * 10)
train_transform = DualCompose(
[HorizontalFlip(),
VerticalFlip(),
ImageOnly(Normalize())])
val_transform = DualCompose([ImageOnly(Normalize())])
## define data loader
train_loader = make_loader(train_test_id,
image_path,
args,
train=True,
shuffle=True,
transform=train_transform)
valid_loader = make_loader(train_test_id,
image_path,
args,
train=False,
shuffle=True,
transform=val_transform)
if True:
print('--' * 10)
print('check data')
train_image, train_mask, train_mask_ind = next(iter(train_loader))
print('train_image.shape', train_image.shape)
print('train_mask.shape', train_mask.shape)
print('train_mask_ind.shape', train_mask_ind.shape)
print('train_image.min', train_image.min().item())
print('train_image.max', train_image.max().item())
print('train_mask.min', train_mask.min().item())
print('train_mask.max', train_mask.max().item())
print('train_mask_ind.min', train_mask_ind.min().item())
print('train_mask_ind.max', train_mask_ind.max().item())
print('--' * 10)
valid_fn = validation_binary
###########
## optimizer
if args.optimizer == 'Adam':
optimizer = Adam(model.parameters(), lr=args.lr)
elif args.optimizer == 'SGD':
optimizer = SGD(model.parameters(), lr=args.lr, momentum=0.9)
## loss
criterion = loss_fn
## change LR
scheduler = ReduceLROnPlateau(optimizer,
'min',
factor=0.8,
patience=5,
verbose=True)
##########
## load previous model status
previous_valid_loss = 10
model_path = root / 'model.pt'
if args.resume_path is not None and model_path.exists():
state = torch.load(str(model_path))
epoch = state['epoch']
step = state['step']
model.load_state_dict(state['model'])
epoch = 1
step = 0
try:
previous_valid_loss = state['valid_loss']
except:
previous_valid_loss = 10
print('--' * 10)
print('Restored previous model, epoch {}, step {:,}'.format(
epoch, step))
print('--' * 10)
else:
epoch = 1
step = 0
#########
## start training
log = root.joinpath('train.log').open('at', encoding='utf8')
writer = SummaryWriter()
meter = AllInOneMeter()
#if previous_valid_loss = 10000
print('Start training')
print_model_summay(model)
previous_valid_jaccard = 0
for epoch in range(epoch, args.n_epochs + 1):
model.train()
random.seed()
#jaccard = []
start_time = time.time()
meter.reset()
w1 = 1.0
w2 = 0.5
w3 = 0.5
try:
train_loss = 0
valid_loss = 0
# if epoch == 1:
# freeze_layer_names = get_freeze_layer_names(part='encoder')
# set_freeze_layers(model, freeze_layer_names=freeze_layer_names)
# #set_train_layers(model, train_layer_names=['module.final.weight','module.final.bias'])
# print_model_summay(model)
# elif epoch == 5:
# w1 = 1.0
# w2 = 0.0
# w3 = 0.5
# freeze_layer_names = get_freeze_layer_names(part='encoder')
# set_freeze_layers(model, freeze_layer_names=freeze_layer_names)
# # set_train_layers(model, train_layer_names=['module.final.weight','module.final.bias'])
# print_model_summay(model)
#elif epoch == 3:
# set_train_layers(model, train_layer_names=['module.dec5.block.0.conv.weight','module.dec5.block.0.conv.bias',
# 'module.dec5.block.1.weight','module.dec5.block.1.bias',
# 'module.dec4.block.0.conv.weight','module.dec4.block.0.conv.bias',
# 'module.dec4.block.1.weight','module.dec4.block.1.bias',
# 'module.dec3.block.0.conv.weight','module.dec3.block.0.conv.bias',
# 'module.dec3.block.1.weight','module.dec3.block.1.bias',
# 'module.dec2.block.0.conv.weight','module.dec2.block.0.conv.bias',
# 'module.dec2.block.1.weight','module.dec2.block.1.bias',
# 'module.dec1.conv.weight','module.dec1.conv.bias',
# 'module.final.weight','module.final.bias'])
# print_model_summa zvgf t5y(model)
# elif epoch == 50:
# set_freeze_layers(model, freeze_layer_names=None)
# print_model_summay(model)
for i, (train_image, train_mask,
train_mask_ind) in enumerate(train_loader):
# inputs, targets = variable(inputs), variable(targets)
train_image = train_image.permute(0, 3, 1, 2)
train_mask = train_mask.permute(0, 3, 1, 2)
train_image = train_image.to(device)
train_mask = train_mask.to(device).type(torch.cuda.FloatTensor)
train_mask_ind = train_mask_ind.to(device).type(
torch.cuda.FloatTensor)
# if args.problem_type == 'binary':
# train_mask = train_mask.to(device).type(torch.cuda.FloatTensor)
# else:
# #train_mask = train_mask.to(device).type(torch.cuda.LongTensor)
# train_mask = train_mask.to(device).type(torch.cuda.FloatTensor)
outputs, outputs_mask_ind1, outputs_mask_ind2 = model(
train_image)
#print(outputs.size())
#print(outputs_mask_ind1.size())
#print(outputs_mask_ind2.size())
### note that the last layer in the model is defined differently
# if args.problem_type == 'binary':
# train_prob = F.sigmoid(outputs)
# loss = criterion(outputs, train_mask)
# else:
# #train_prob = outputs
# train_prob = F.sigmoid(outputs)
# loss = torch.tensor(0).type(train_mask.type())
# for feat_inx in range(train_mask.shape[1]):
# loss += criterion(outputs, train_mask)
train_prob = F.sigmoid(outputs)
train_mask_ind_prob1 = F.sigmoid(outputs_mask_ind1)
train_mask_ind_prob2 = F.sigmoid(outputs_mask_ind2)
loss1 = criterion(outputs, train_mask)
#loss1 = F.binary_cross_entropy_with_logits(outputs, train_mask)
#loss2 = nn.BCEWithLogitsLoss()(outputs_mask_ind1, train_mask_ind)
#print(train_mask_ind.size())
#weight = torch.ones_like(train_mask_ind)
#weight[:, 0] = weight[:, 0] * 1
#weight[:, 1] = weight[:, 1] * 14
#weight[:, 2] = weight[:, 2] * 14
#weight[:, 3] = weight[:, 3] * 4
#weight[:, 4] = weight[:, 4] * 4
#weight = weight * train_mask_ind + 1
#weight = weight.to(device).type(torch.cuda.FloatTensor)
loss2 = F.binary_cross_entropy_with_logits(
outputs_mask_ind1, train_mask_ind)
loss3 = F.binary_cross_entropy_with_logits(
outputs_mask_ind2, train_mask_ind)
#loss3 = criterion(outputs_mask_ind2, train_mask_ind)
loss = loss1 * w1 + loss2 * w2 + loss3 * w3
#print(loss1.item(), loss2.item(), loss.item())
optimizer.zero_grad()
loss.backward()
optimizer.step()
step += 1
#jaccard += [get_jaccard(train_mask, (train_prob > 0).float()).item()]
meter.add(train_prob, train_mask, train_mask_ind_prob1,
train_mask_ind_prob2, train_mask_ind, loss1.item(),
loss2.item(), loss3.item(), loss.item())
# print(train_mask.data.shape)
# print(train_mask.data.sum(dim=-2).shape)
# print(train_mask.data.sum(dim=-2).sum(dim=-1).shape)
# print(train_mask.data.sum(dim=-2).sum(dim=-1).sum(dim=0).shape)
# intersection = train_mask.data.sum(dim=-2).sum(dim=-1)
# print(intersection.shape)
# print(intersection.dtype)
# print(train_mask.data.shape[0])
#torch.zeros([2, 4], dtype=torch.float32)
#########################
## at the end of each epoch, evualte the metrics
epoch_time = time.time() - start_time
train_metrics = meter.value()
train_metrics['epoch_time'] = epoch_time
train_metrics['image'] = train_image.data
train_metrics['mask'] = train_mask.data
train_metrics['prob'] = train_prob.data
#train_jaccard = np.mean(jaccard)
#train_auc = str(round(mtr1.value()[0],2))+' '+str(round(mtr2.value()[0],2))+' '+str(round(mtr3.value()[0],2))+' '+str(round(mtr4.value()[0],2))+' '+str(round(mtr5.value()[0],2))
valid_metrics = valid_fn(model, criterion, valid_loader, device,
num_classes)
##############
## write events
write_event(log,
step,
epoch=epoch,
train_metrics=train_metrics,
valid_metrics=valid_metrics)
#save_weights(model, model_path, epoch + 1, step)
#########################
## tensorboard
write_tensorboard(writer,
model,
epoch,
train_metrics=train_metrics,
valid_metrics=valid_metrics)
#########################
## save the best model
valid_loss = valid_metrics['loss1']
valid_jaccard = valid_metrics['jaccard']
if valid_loss < previous_valid_loss:
save_weights(model, model_path, epoch + 1, step, train_metrics,
valid_metrics)
previous_valid_loss = valid_loss
print('Save best model by loss')
if valid_jaccard > previous_valid_jaccard:
save_weights(model, model_path, epoch + 1, step, train_metrics,
valid_metrics)
previous_valid_jaccard = valid_jaccard
print('Save best model by jaccard')
#########################
## change learning rate
scheduler.step(valid_metrics['loss1'])
except KeyboardInterrupt:
# print('--' * 10)
# print('Ctrl+C, saving snapshot')
# save_weights(model, model_path, epoch, step)
# print('done.')
# print('--' * 10)
writer.close()
#return
writer.close()
def valid_augment(img,mask):
return DualCompose([Scale(size=pad),ImageOnly(Normalize(mean=(0.485, 0.456, 0.406), std=(0.229, 0.224, 0.225)))])(img, mask)
def main():
parser = argparse.ArgumentParser()
arg = parser.add_argument
arg('--jaccard-weight', default=0.3, type=float)
arg('--device-ids',
type=str,
default='0',
help='For example 0,1 to run on two GPUs')
arg('--fold', type=int, help='fold', default=0)
arg('--root', default='runs/debug', help='checkpoint root')
arg('--batch-size', type=int, default=1)
arg('--limit', type=int, default=10000, help='number of images in epoch')
arg('--n-epochs', type=int, default=100)
arg('--lr', type=float, default=0.0001)
arg('--workers', type=int, default=12)
arg("--b1",
type=float,
default=0.5,
help="adam: decay of first order momentum of gradient")
arg("--b2",
type=float,
default=0.999,
help="adam: decay of first order momentum of gradient")
args = parser.parse_args()
root = Path(args.root)
root.mkdir(exist_ok=True, parents=True)
# Loss functions
criterion_GAN = GAN_loss(gan_weight=1) #torch.nn.MSELoss()
criterion_pixelwise = torch.nn.L1Loss()
criterion_discrim = Discrim_loss(dircrim_weight=1)
# Loss weight of L1 pixel-wise loss between translated image and real image
lambda_pixel = 100
# Initialize generator and discriminator
model = AlbuNet34(num_classes=1, pretrained=True)
discrim_model = discriminator()
if torch.cuda.is_available():
if args.device_ids:
device_ids = list(map(int, args.device_ids.split(',')))
else:
device_ids = None
model = nn.DataParallel(model, device_ids=device_ids).cuda()
discrim_model = nn.DataParallel(discrim_model,
device_ids=device_ids).cuda()
# Load pretrained models
root = Path(args.root)
model_path = root / 'model_{fold}.pt'.format(fold=args.fold)
if model_path.exists():
state = torch.load(str(model_path))
epoch = state['epoch']
step = state['step']
model.load_state_dict(state['model'])
print('Restored model, epoch {}, step {:,}'.format(epoch, step))
else:
epoch = 1
step = 0
save = lambda ep: torch.save(
{
'model': model.state_dict(),
'epoch': ep,
'step': step,
}, str(model_path))
# Optimizers
optimizer_G = Adam(model.parameters(),
lr=args.lr,
betas=(args.b1, args.b2))
optimizer_D = Adam(discrim_model.parameters(),
lr=args.lr,
betas=(args.b1, args.b2))
# Configure dataloaders
def make_loader(file_names, shuffle=False, transform=None, limit=None):
return DataLoader(dataset=Polyp(file_names,
transform=transform,
limit=limit),
shuffle=shuffle,
num_workers=args.workers,
batch_size=args.batch_size,
pin_memory=torch.cuda.is_available())
train_file_names, val_file_names = get_split(args.fold)
print('num train = {}, num_val = {}'.format(len(train_file_names),
len(val_file_names)))
train_transform = DualCompose([
CropCVC612(),
img_resize(512),
HorizontalFlip(),
VerticalFlip(),
Rotate(),
Rescale(),
Zoomin(),
ImageOnly(RandomHueSaturationValue()),
ImageOnly(Normalize())
])
train_loader = make_loader(train_file_names,
shuffle=True,
transform=train_transform,
limit=args.limit)
root.joinpath('params.json').write_text(
json.dumps(vars(args), indent=True, sort_keys=True))
report_each = 10
log = root.joinpath('train_{fold}.log'.format(fold=args.fold)).open(
'at', encoding='utf8')
for epoch in range(epoch, args.n_epochs + 1):
model.train()
discrim_model.train()
random.seed()
tq = tqdm.tqdm(total=(len(train_loader) * args.batch_size))
tq.set_description('Epoch {}, lr {}'.format(epoch, args.lr))
losses = []
tl = train_loader
try:
mean_loss = 0
for i, (inputs, targets) in enumerate(tl):
# Model inputs
inputs, targets = variable(inputs), variable(targets)
# ------------------
# Train Generators
# ------------------
optimizer_G.zero_grad()
# Generate output
outputs = model(inputs)
# fake loss
predict_fake = discrim_model(inputs, outputs)
# Pixel-wise loss
loss_pixel = criterion_pixelwise(outputs, targets)
# Generator loss
loss_GAN = criterion_GAN(predict_fake)
# Total loss of GAN
loss_G = loss_GAN + lambda_pixel * loss_pixel
loss_G.backward()
optimizer_G.step()
# ---------------------
# Train Discriminator
# ---------------------
optimizer_D.zero_grad()
# Real loss
predict_real = discrim_model(inputs, targets)
predict_fake = discrim_model(inputs, outputs.detach())
# Discriminator loss
loss_D = criterion_discrim(predict_real, predict_fake)
loss_D.backward()
optimizer_D.step()
step += 1
batch_size = inputs.size(0)
tq.update(batch_size)
losses.append(float(loss_G.data))
mean_loss = np.mean(losses[-report_each:])
tq.set_postfix(loss='{:.5f}'.format(mean_loss))
if i and i % report_each == 0:
write_event(log, step, loss=mean_loss)
write_event(log, step, loss=mean_loss)
tq.close()
save(epoch + 1)
except KeyboardInterrupt:
tq.close()
print('Ctrl+C, saving snapshot')
save(epoch)
print('done.')
return
from dataset import RoboticsDataset
import cv2
from models import UNet16, LinkNet34, UNet11, UNet
import torch
from pathlib import Path
from tqdm import tqdm
import numpy as np
import utils
import prepare_data
from torch.utils.data import DataLoader
from torch.nn import functional as F
from prepare_data import (original_height, original_width, h_start, w_start)
from transforms import (ImageOnly, Normalize, DualCompose)
img_transform = DualCompose([ImageOnly(Normalize())])
def get_model(model_path, model_type='unet11', problem_type='binary'):
"""
:param model_path:
:param model_type: 'UNet', 'UNet16', 'UNet11', 'LinkNet34'
:param problem_type: 'binary', 'parts', 'instruments'
:return:
"""
if problem_type == 'binary':
num_classes = 1
elif problem_type == 'parts':
num_classes = 4
elif problem_type == 'instruments':
num_classes = 8
data_root = root / "miccai_challenge_2018_training_data"
json_file_name = str(data_root / "labels.json")
train_file_names = get_color_file_names(fold=fold, root=data_root)
lr = 1.0e-4
n_epochs = 200
# scale = 4
img_width = 1280
img_height = 1024
factor = 0.05
train_transform = DualCompose([
# Resize(w=img_width, h=img_height),
HorizontalFlip(),
VerticalFlip(),
ImageOnly(
[RandomBrightnessDual(limit=0.3),
RandomContrastDual(limit=0.3)]),
ImageOnly([NormalizeImage()])
])
# RandomSaturation(limit=0.3)
valid_transform = DualCompose([
# Resize(w=img_width, h=img_height),
ImageOnly([NormalizeImage()])
])
train_dataset = Challenge2018TemporalOpticalFlowDataset(
image_file_names=train_file_names,
to_augment=True,
transform=train_transform,
img_width=img_width,
img_height=img_height,