def get_train_loader(batch_size, data_root, dataset, distributed):
img_transform = transforms.Compose([
transforms.Resize((256, 512)),
transforms.ToTensor(),
transforms.Normalize((0.485, 0.456, 0.406), (0.229, 0.224, 0.225)),
])
simu_transform = mytransforms.Compose2([
mytransforms.RandomRotate(6),
mytransforms.RandomUDoffsetLABEL(100),
mytransforms.RandomLROffsetLABEL(200)
])
if dataset == 'CULane':
row_anchor = np.linspace(90, 255, row_num).tolist()
train_dataset = LaneClsDataset(data_root,
os.path.join(data_root, 'list/train_gt.txt'),
img_transform=img_transform, simu_transform = simu_transform,
segment_transform=None,
row_anchor = row_anchor,
griding_num=griding_num, use_aux=use_aux)
else:
raise NotImplementedError
if distributed:
sampler = torch.utils.data.distributed.DistributedSampler(train_dataset)
else:
sampler = torch.utils.data.RandomSampler(train_dataset)
train_loader = torch.utils.data.DataLoader(train_dataset, batch_size=batch_size, sampler = sampler, num_workers=4)
return train_loader
def get_train_loader(dataset_dict, local_rank):
target_transform = transforms.Compose([
mytransforms.FreeScaleMask((dataset_dict['h'], dataset_dict['w'])),
mytransforms.MaskToTensor(),
])
segment_transform = transforms.Compose([
mytransforms.FreeScaleMask(
(dataset_dict['h'] // 8, dataset_dict['w'] // 8)), #36 100
mytransforms.MaskToTensor(),
])
img_transform = transforms.Compose([
transforms.Resize((dataset_dict['h'], dataset_dict['w'])),
transforms.ToTensor(),
transforms.Normalize((0.485, 0.456, 0.406), (0.229, 0.224, 0.225)),
])
simu_transform = mytransforms.Compose2([
mytransforms.RandomRotate(6),
mytransforms.RandomUDoffsetLABEL(100),
mytransforms.RandomLROffsetLABEL(200)
])
if dataset_dict['name'] == 'CULane':
train_dataset = LaneClsDataset(dataset_dict,
img_transform=img_transform,
target_transform=target_transform,
simu_transform=simu_transform,
segment_transform=segment_transform)
elif dataset_dict['name'] == 'Tusimple':
train_dataset = LaneClsDataset(dataset_dict['data_root'],
os.path.join(dataset_dict['data_root'],
'train_gt.txt'),
img_transform=img_transform,
target_transform=target_transform,
simu_transform=simu_transform,
griding_num=dataset_dict['griding_num'],
row_anchor=dataset_dict['row_anchor'],
segment_transform=segment_transform,
use_aux=dataset_dict['use_aux'],
num_lanes=dataset_dict['num_lanes'])
else:
raise NotImplementedError
if local_rank == -1:
train_loader = torch.utils.data.DataLoader(
train_dataset,
batch_size=dataset_dict['batch_size'],
shuffle=True,
num_workers=dataset_dict['num_workers'])
else:
num_gpus = torch.cuda.device_count()
torch.cuda.set_device(local_rank % num_gpus)
torch.distributed.init_process_group(backend='nccl')
sampler = torch.utils.data.distributed.DistributedSampler(
train_dataset)
train_loader = torch.utils.data.DataLoader(
train_dataset,
batch_size=dataset_dict['batch_size'],
sampler=sampler,
num_workers=dataset_dict['num_workers'])
return train_loader
def get_train_loader(batch_size, data_root, griding_num, dataset, use_aux, distributed):
target_transform = transforms.Compose([
mytransforms.FreeScaleMask((288, 800)),
mytransforms.MaskToTensor(),
])
segment_transform = transforms.Compose([
mytransforms.FreeScaleMask((36, 100)),
mytransforms.MaskToTensor(),
])
img_transform = transforms.Compose([
transforms.Resize((288, 800)),
transforms.ToTensor(),
transforms.Normalize((0.485, 0.456, 0.406), (0.229, 0.224, 0.225)),
])
simu_transform = mytransforms.Compose2([
mytransforms.RandomRotate(6),
mytransforms.RandomUDoffsetLABEL(100),
mytransforms.RandomLROffsetLABEL(200)
])
if dataset == 'CULane':
train_dataset = LaneClsDataset(data_root,
os.path.join(data_root, 'list/train_gt.txt'),
img_transform=img_transform, target_transform=target_transform,
simu_transform = simu_transform,
segment_transform=segment_transform,
row_anchor = culane_row_anchor,
griding_num=griding_num, use_aux=use_aux)
cls_num_per_lane = 18
elif dataset == 'Tusimple':
train_dataset = LaneClsDataset(data_root,
os.path.join(data_root, 'train_gt.txt'),
img_transform=img_transform, target_transform=target_transform,
simu_transform = simu_transform,
griding_num=griding_num,
row_anchor = tusimple_row_anchor,
segment_transform=segment_transform,use_aux=use_aux)
cls_num_per_lane = 56
else:
raise NotImplementedError
if distributed:
sampler = torch.utils.data.distributed.DistributedSampler(train_dataset)
else:
sampler = torch.utils.data.RandomSampler(train_dataset)
train_loader = torch.utils.data.DataLoader(train_dataset, batch_size=batch_size, sampler = sampler, num_workers=4)
return train_loader, cls_num_per_lane
def get_train_loader(batch_size, data_root, griding_num, dataset, use_aux,
distributed, num_lanes, cfg):
target_transform = transforms.Compose([
# Pyten-20200128-ChangeInputSize
# mytransforms.FreeScaleMask((288, 800)),
mytransforms.FreeScaleMask((cfg.height, cfg.width)),
mytransforms.MaskToTensor(),
])
segment_transform = transforms.Compose([
# Pyten-20200128-ChangeInputSize
# mytransforms.FreeScaleMask((36, 100)),
mytransforms.FreeScaleMask((cfg.height // 8, cfg.width // 8)),
mytransforms.MaskToTensor(),
])
img_transform = transforms.Compose([
# Pyten-20200128-ChangeInputSize
# transforms.Resize((288, 800)),
transforms.Resize((cfg.height, cfg.width)),
transforms.ToTensor(),
# Pyten-20210126-Addnewtransform
# transforms.ColorJitter(brightness=0.5, contrast=0.5, saturation=0.5),
transforms.Normalize((0.485, 0.456, 0.406), (0.229, 0.224, 0.225)),
])
# Pyten-20210203-AddAlbumTransform
albumtransforms = A.Compose([
A.HorizontalFlip(p=0.5),
A.OneOf([
A.HueSaturationValue(hue_shift_limit=0.2,
sat_shift_limit=0.2,
val_shift_limit=0.2,
p=0.9),
A.RandomBrightnessContrast(
brightness_limit=0.2, contrast_limit=0.2, p=0.9),
],
p=0.8),
A.OneOf([
A.MotionBlur(p=0.2),
A.MedianBlur(blur_limit=3, p=0.1),
A.Blur(blur_limit=3, p=0.1),
],
p=0.2),
A.OneOf(
[
#A.IAAAdditiveGaussianNoise(),
A.GaussNoise(),
],
p=0.2),
A.OneOf(
[
A.OpticalDistortion(p=0.3),
A.GridDistortion(p=0.1),
#A.IAAPiecewiseAffine(p=0.3),
],
p=0.2),
A.OneOf(
[
A.CLAHE(clip_limit=2),
#A.IAASharpen(),
#A.IAAEmboss(),
A.RandomBrightnessContrast(),
],
p=0.3),
#A.Blur(blur_limit=3, p=0.5),
# A.ShiftScaleRotate(shift_limit=0.2, scale_limit=0.2, rotate_limit=30, p=0.5),
#A.RGBShift(r_shift_limit=25, g_shift_limit=25, b_shift_limit=25, p=0.5),
#A.RandomBrightnessContrast(brightness_limit=0.3, contrast_limit=0.3, p=0.5),
#A.JpegCompression(p=0.5),
#A.HueSaturationValue(p=0.5),
#A.CLAHE(p=0.5),
#A.MotionBlur(p=0.3)
])
simu_transform = mytransforms.Compose2([
#mytransforms.AlbumAug(albumtransforms),
mytransforms.RandomRotate(6),
mytransforms.RandomUDoffsetLABEL(100),
mytransforms.RandomLROffsetLABEL(200)
])
if dataset == 'CULane':
if "anchors" not in cfg:
cfg.anchors = culane_row_anchor
train_dataset = LaneClsDataset(data_root,
os.path.join(data_root,
'list/train_gt.txt'),
img_transform=img_transform,
target_transform=target_transform,
simu_transform=simu_transform,
segment_transform=segment_transform,
row_anchor=cfg.anchors,
griding_num=griding_num,
use_aux=use_aux,
num_lanes=num_lanes)
cls_num_per_lane = 18
elif dataset == 'Bdd100k':
if "anchors" not in cfg:
cfg.anchors = tusimple_row_anchor # culane_row_anchor
train_dataset = BddLaneClsDataset(
data_root,
os.path.join(data_root,
'train.txt'), #'new_train.txt ' #'train.txt' 2000
img_transform=img_transform,
target_transform=target_transform,
simu_transform=simu_transform,
griding_num=griding_num,
row_anchor=cfg.anchors,
segment_transform=segment_transform,
use_aux=use_aux,
num_lanes=num_lanes,
mode="train")
cls_num_per_lane = 56 # 18
elif dataset == 'neolix':
if "anchors" not in cfg:
cfg.anchors = tusimple_row_anchor
train_dataset = LaneClsDataset(data_root,
os.path.join(data_root, 'train.txt'),
img_transform=img_transform,
target_transform=target_transform,
simu_transform=simu_transform,
segment_transform=segment_transform,
row_anchor=cfg.anchors,
griding_num=griding_num,
use_aux=use_aux,
num_lanes=num_lanes)
cls_num_per_lane = 56
elif dataset == 'Tusimple':
if "anchors" not in cfg:
cfg.anchors = tusimple_row_anchor
train_dataset = LaneClsDataset(data_root,
os.path.join(data_root, 'train_gt.txt'),
img_transform=img_transform,
target_transform=target_transform,
simu_transform=simu_transform,
griding_num=griding_num,
row_anchor=cfg.anchors,
segment_transform=segment_transform,
use_aux=use_aux,
num_lanes=num_lanes)
cls_num_per_lane = 56
else:
raise NotImplementedError
if distributed:
sampler = torch.utils.data.distributed.DistributedSampler(
train_dataset)
else:
sampler = torch.utils.data.RandomSampler(train_dataset)
train_loader = torch.utils.data.DataLoader(train_dataset,
batch_size=batch_size,
sampler=sampler,
num_workers=4)
return train_loader, cls_num_per_lane