def main():
lane_config = Config()
if os.path.exists(lane_config.SAVE_PATH):
shutil.rmtree(lane_config.SAVE_PATH)
os.makedirs(lane_config.SAVE_PATH, exist_ok=True)
trainF = open(os.path.join(lane_config.SAVE_PATH, "train.csv"), 'w')
testF = open(os.path.join(lane_config.SAVE_PATH, "test.csv"), 'w')
kwargs = {
'num_workers': 4,
'pin_memory': True
} if torch.cuda.is_available() else {}
train_dataset = LaneDataset("train.csv",
transform=transforms.Compose([
ImageAug(),
DeformAug(),
ScaleAug(),
CutOut(32, 0.5),
ToTensor()
]))
train_data_batch = DataLoader(train_dataset,
batch_size=8 * len(device_list),
shuffle=True,
drop_last=True,
**kwargs)
val_dataset = LaneDataset("val.csv",
transform=transforms.Compose([ToTensor()]))
val_data_batch = DataLoader(val_dataset,
batch_size=4 * len(device_list),
shuffle=False,
drop_last=False,
**kwargs)
net = nets[train_net](lane_config)
if torch.cuda.is_available():
net = net.cuda(device=device_list[0])
#在这里加了一个数据并行，相当于甲类一个moduel
net = torch.nn.DataParallel(net, device_ids=device_list)
# optimizer = torch.optim.SGD(net.parameters(), lr=lane_config.BASE_LR,
# momentum=0.9, weight_decay=lane_config.WEIGHT_DECAY)
optimizer = torch.optim.Adam(net.parameters(),
lr=lane_config.BASE_LR,
weight_decay=lane_config.WEIGHT_DECAY)
for epoch in range(lane_config.EPOCHS):
# adjust_lr(optimizer, epoch)
train_epoch(net, epoch, train_data_batch, optimizer, trainF,
lane_config)
test(net, epoch, val_data_batch, testF, lane_config)
if epoch % 2 == 0:
#存储的参数是net的模型参数，没有网络结构
#torch.save({'state_dict': net.module.state_dict()}, os.path.join(os.getcwd(), lane_config.SAVE_PATH, "laneNet{}.pth.tar".format(epoch)))
torch.save({'state_dict': net.state_dict()},
os.path.join(os.getcwd(), lane_config.SAVE_PATH,
"laneNet{}.pth.tar".format(epoch)))
trainF.close()
testF.close()
torch.save({'state_dict': net.state_dict()},
os.path.join(os.getcwd(), lane_config.SAVE_PATH,
"finalNet.pth.tar"))
def train(args):
predict_net = args.net
nets = {'deeplabv3p': DeepLab, 'unet': ResNetUNet}
trainF = open(os.path.join(args.save_path, "train.csv"), 'w')
valF = open(os.path.join(args.save_path, "test.csv"), 'w')
kwargs = {
'num_workers': args.num_works,
'pin_memory': True
} if torch.cuda.is_available() else {}
train_dataset = LaneDataset("train.csv",
transform=transforms.Compose([
ImageAug(),
DeformAug(),
ScaleAug(),
CutOut(32, 0.5),
ToTensor()
]))
train_data_batch = DataLoader(train_dataset,
batch_size=2,
shuffle=True,
drop_last=True,
**kwargs)
val_dataset = LaneDataset("val.csv",
transform=transforms.Compose([ToTensor()]))
val_data_batch = DataLoader(val_dataset,
batch_size=2,
shuffle=False,
drop_last=True,
**kwargs)
net = nets[predict_net](args)
optimizer = torch.optim.Adam(net.parameters(),
lr=args.base_lr,
weight_decay=args.weight_decay)
# Training and test
for epoch in range(args.epochs):
# 在train_epoch中
train_epoch(net, epoch, train_data_batch, optimizer, trainF, args)
val_epoch(net, epoch, val_data_batch, valF, args)
if epoch % 2 == 0:
torch.save({'state_dict': net.state_dict()},
os.path.join(os.getcwd(), args.save_path,
"laneNet{}.pth.tar".format(epoch)))
trainF.close()
valF.close()
torch.save({'state_dict': net.state_dict()},
os.path.join(os.getcwd(), "result", "finalNet_unet.pth.tar"))
def main():
# network = 'deeplabv3p'
# save_model_path = "./model_weights/" + network + "_"
# model_path = "./model_weights/" + network + "_0_6000"
data_dir = ''
val_percent = .1
epochs = 9
kwargs = {
'num_workers': 4,
'pin_memory': True
} if torch.cuda.is_available() else {}
training_dataset = LaneDataset(
"~/workspace/myDL/CV/week8/Lane_Segmentation_pytorch/data_list/train.csv",
transform=transforms.Compose(
[ImageAug(),
DeformAug(),
ScaleAug(),
CutOut(32, 0.5),
ToTensor()]))
training_data_batch = DataLoader(training_dataset,
batch_size=2,
shuffle=True,
drop_last=True,
**kwargs)
dataset = BasicDataset(data_dir,
img_size=cfg.IMG_SIZE,
crop_offset=cfg.crop_offset)
n_val = int(len(dataset) * val_percent)
n_train = len(dataset) - n_val
train, val = random_split(dataset, [n_train, n_val])
train_loader = DataLoader(train,
batch_size=cfg.batch_size,
shuffle=True,
num_workers=8,
pin_memory=True)
val_loader = DataLoader(val,
batch_size=cfg.batch_size,
shuffle=False,
num_workers=8,
pin_memory=True)
model = unet_base(cfg.num_classes, cfg.IMG_SIZE)
model.cuda()
optimizer = torch.optim.Adam(model.parameters(),
lr=cfg.base_lr,
betas=(0.9, 0.99))
bce_criterion = nn.BCEWithLogitsLoss()
dice_criterion = MulticlassDiceLoss()
model.train()
epoch_loss = 0
dataprocess = tqdm(training_data_batch)
for batch_item in dataprocess:
image, mask = batch_item['image'], batch_item['mask']
if torch.cuda.is_available():
image, mask = image.cuda(), mask.cuda()
image = image.to(torch.float32).requires_grad_()
mask = mask.to(torch.float32).requires_grad_()
masks_pred = model(image)
masks_pred = torch.argmax(masks_pred, dim=1)
masks_pred = masks_pred.to(torch.float32)
mask = mask.to(torch.float32)
# print('mask_pred:', masks_pred)
# print('mask:', mask)
loss = bce_criterion(masks_pred, mask) + dice_criterion(
masks_pred, mask)
epoch_loss += loss.item()
optimizer.zero_grad()
loss.backward()
optimizer.step()
import torch
import numpy as np
import matplotlib.pyplot as plt
from torchvision import transforms
from torch.utils.data import DataLoader
from utils.image_process import LaneDataset, ImageAug, DeformAug
from utils.image_process import ScaleAug, CutOut, ToTensor
kwargs = {
'num_workers': 1,
'pin_memory': True
} if torch.cuda.is_available() else {}
training_dataset = LaneDataset("train.csv",
transform=transforms.Compose([
ImageAug(),
DeformAug(),
ScaleAug(),
CutOut(32, 0.5),
ToTensor()
]))
training_data_batch = DataLoader(training_dataset,
batch_size=16,
shuffle=True,
drop_last=True,
**kwargs)
dataprocess = tqdm(training_data_batch)
for batch_item in dataprocess:
image, mask = batch_item['image'], batch_item['mask']
def main():
lane_config = Config()
if not os.path.exists(lane_config.SAVE_PATH):
#shutil.rmtree(lane_config.SAVE_PATH)
os.makedirs(lane_config.SAVE_PATH, exist_ok=True)
trainF = open(os.path.join(lane_config.SAVE_PATH, "train.csv"), 'w')
testF = open(os.path.join(lane_config.SAVE_PATH, "test.csv"), 'w')
kwargs = {
'num_workers': 4,
'pin_memory': True
} if torch.cuda.is_available() else {}
train_dataset = LaneDataset("train.csv",
transform=transforms.Compose([
ImageAug(),
DeformAug(),
ScaleAug(),
CutOut(32, 0.5),
ToTensor()
]))
train_data_batch = DataLoader(train_dataset,
batch_size=2 * len(device_list),
shuffle=True,
drop_last=True,
**kwargs)
val_dataset = LaneDataset("val.csv",
transform=transforms.Compose([ToTensor()]))
val_data_batch = DataLoader(val_dataset,
batch_size=2 * len(device_list),
shuffle=False,
drop_last=False,
**kwargs)
net = nets[train_net](lane_config)
#先将net转入cuda中
if torch.cuda.is_available():
print("cuda is available")
net = net.cuda(device=device_list[0])
#在这里加了一个数据并行，相当于甲类一个moduel
#net = torch.nn.DataParallel(net, device_ids=device_list)
# optimizer = torch.optim.SGD(net.parameters(), lr=lane_config.BASE_LR,
# momentum=0.9, weight_decay=lane_config.WEIGHT_DECAY)
#得到一个optimizer，若是要恢复训练，则在Resume块中重新加载参数
optimizer = torch.optim.Adam(net.parameters(),
lr=lane_config.BASE_LR,
weight_decay=lane_config.WEIGHT_DECAY)
# 是否Resume 恢复训练
Resume = True
epoch_to_continue = 65 #
if Resume is True:
checkpoint_path = os.path.join(
os.getcwd(), lane_config.SAVE_PATH,
"epoch{}Net.pth.tar".format(epoch_to_continue))
if not os.path.exists(checkpoint_path):
print("checkpoint_path not exists!")
exit()
checkpoint = torch.load(checkpoint_path,
map_location='cuda:{}'.format(device_list[0]))
#model_param = torch.load(checkpoint_path)['state_dict']
#model_param = {k.replace('module.', ''):v for k, v in model_param.items()}
net.load_state_dict(checkpoint['state_dict']) #加载net参数
optimizer.load_state_dict(
checkpoint['optimizer_state_dict']) #加载optimizer参数
epoch_to_continue = checkpoint['epoch']
#加入数据并行
if torch.cuda.is_available():
#在这里加了一个数据并行，相当于甲类一个moduel
net = torch.nn.DataParallel(net, device_ids=device_list)
for epoch in range(epoch_to_continue + 1,
epoch_to_continue + lane_config.EPOCHS):
adjust_lr(optimizer, epoch)
train_epoch(net, epoch, train_data_batch, optimizer, trainF,
lane_config)
if epoch % 5 == 0:
#存储的参数是net的模型参数，没有网络结构
#torch.save({'state_dict': net.module.state_dict()}, os.path.join(os.getcwd(), lane_config.SAVE_PATH, "laneNet{}.pth.tar".format(epoch)))
#torch.save({'state_dict': net.state_dict()}, os.path.join(os.getcwd(), lane_config.SAVE_PATH, "laneNet{}.pth.tar".format(epoch)))
torch.save(
{
'epoch': epoch,
'state_dict': net.module.state_dict(), #加了module
'optimizer_state_dict': optimizer.state_dict(),
},
os.path.join(os.getcwd(), lane_config.SAVE_PATH,
"epoch{}Net.pth.tar".format(epoch)))
test(net, epoch, val_data_batch, testF, lane_config)
trainF.close()
testF.close()
# @Author: chargerKong
# @Time: 20-6-22 下午3:18
# @File: data_generator.py
import torch
from tqdm import tqdm
from torch.utils.data import DataLoader
from utils.image_process import LaneDataset, ToTensor, CutOut, ImageAug, DeformAug, ScaleAug
from utils.config import train_csv_path
from torchvision import transforms
kwargs = {'num_workers': 4, 'pin_memory': True} if torch.cuda.is_available() else {
}
training_dataset = LaneDataset(train_csv_path, transform=transforms.Compose(
[ImageAug(), DeformAug(), ScaleAug(), CutOut(32, 0.5), ToTensor()]))
data_gen = DataLoader(training_dataset, batch_size=2, drop_last=True, **kwargs)
for batch in tqdm(data_gen):
image, mask = batch['image'], batch['mask']
if torch.cuda.is_available():
image, mask = image.cuda(), mask.cuda()
def main():
lane_config = Config()
if os.path.exists(lane_config.SAVE_PATH):
shutil.rmtree(lane_config.SAVE_PATH)
os.makedirs(lane_config.SAVE_PATH, exist_ok=True)
trainF = open(os.path.join(lane_config.SAVE_PATH, "train.csv"), 'w')
testF = open(os.path.join(lane_config.SAVE_PATH, "test.csv"), 'w')
kwargs = {
'num_workers': 4,
'pin_memory': True
} if torch.cuda.is_available() else {}
train_dataset = LaneDataset("train.csv",
transform=transforms.Compose([
ImageAug(),
DeformAug(),
ScaleAug(),
ToTensor()
]))
train_data_batch = DataLoader(train_dataset,
batch_size=4 * len(device_list),
shuffle=True,
drop_last=True,
**kwargs)
val_dataset = LaneDataset("val.csv",
transform=transforms.Compose([ToTensor()]))
val_data_batch = DataLoader(val_dataset,
batch_size=2 * len(device_list),
shuffle=False,
drop_last=False,
**kwargs)
net = DeeplabV3Plus(lane_config)
# net = UNet(n_classes=8)
if torch.cuda.is_available():
net = net.cuda(device=device_list[0])
net = torch.nn.DataParallel(net, device_ids=device_list)
# optimizer = torch.optim.SGD(net.parameters(), lr=lane_config.BASE_LR,
# momentum=0.9, weight_decay=lane_config.WEIGHT_DECAY)
# summary(net, (3, 384, 1024))
optimizer = torch.optim.Adam(net.parameters(),
lr=lane_config.BASE_LR,
weight_decay=lane_config.WEIGHT_DECAY)
path = "/home/ubuntu/baidu/Lane-Segmentation/logs/finalNet.pth"
# if os.path.exists(path):
# checkpoint = torch.load(path)
# net.load_state_dict(checkpoint['model'])
# optimizer.load_state_dict(checkpoint['optimizer'])
# start_epoch = checkpoint['epoch']
# print('加载 epoch {} 成功！'.format(start_epoch))
# else:
# start_epoch = 0
# print('无保存模型，将从头开始训练！')
for epoch in range(lane_config.EPOCHS):
# adjust_lr(optimizer,epoch)
train_epoch(net, epoch, train_data_batch, optimizer, trainF,
lane_config)
test(net, epoch, val_data_batch, testF, lane_config)
if epoch % 5 == 0:
path1 = "/home/ubuntu/baidu/Lane-Segmentation/logs/laneNet{}.pth".format(
epoch)
state = {
'model': net.state_dict(),
'optimizer': optimizer.state_dict(),
'epoch': epoch
}
torch.save(state, path1)
trainF.close()
testF.close()
state = {
'model': net.state_dict(),
'optimizer': optimizer.state_dict(),
'epoch': lane_config.EPOCHS
}
torch.save(state, path)
def main():
# 设置model parameters
lane_config = Config()
if os.path.exists(lane_config.SAVE_PATH):
shutil.rmtree(lane_config.SAVE_PATH)
os.makedirs(lane_config.SAVE_PATH, exist_ok=True)
trainF = open(os.path.join(lane_config.SAVE_PATH, "train.csv"), 'w')
testF = open(os.path.join(lane_config.SAVE_PATH, "test.csv"), 'w')
# set up dataset
# 'pin_memory'意味着生成的Tensor数据最开始是属于内存中的索页，这样的话转到GPU的显存就会很快
kwargs = {
'num_workers': 0,
'pin_memory': True
} if torch.cuda.is_available() else {}
train_dataset = LaneDataset("train.csv",
transform=transforms.Compose([
ImageAug(),
DeformAug(),
ScaleAug(),
CutOut(32, 0.5),
ToTensor()
]))
train_data_batch = DataLoader(train_dataset,
batch_size=2 * len(device_list),
shuffle=True,
drop_last=True,
**kwargs)
val_dataset = LaneDataset("val.csv",
transform=transforms.Compose([ToTensor()]))
val_data_batch = DataLoader(val_dataset,
batch_size=1 * len(device_list),
shuffle=False,
drop_last=False,
**kwargs)
# build model
net = nets[train_net](lane_config)
if lane_config.PRETRAIN: # 加载预训练权重
print('Load pretrain weights: ', lane_config.PRETRAINED_WEIGHTS)
net.load_state_dict(
torch.load(lane_config.PRETRAINED_WEIGHTS, map_location='cuda:0'))
if torch.cuda.is_available():
net = net.cuda(device=device_list[0])
net = torch.nn.DataParallel(net, device_ids=device_list)
# optimizer = torch.optim.SGD(net.parameters(), lr=lane_config.BASE_LR,
# momentum=0.9, weight_decay=lane_config.WEIGHT_DECAY)
optimizer = torch.optim.Adam(net.parameters(),
lr=lane_config.BASE_LR,
weight_decay=lane_config.WEIGHT_DECAY)
# Training and test
for epoch in range(lane_config.EPOCHS):
# adjust_lr(optimizer, epoch)
train_epoch(net, epoch, train_data_batch, optimizer, trainF,
lane_config)
test(net, epoch, val_data_batch, testF, lane_config)
# net.module.state_dict()
if epoch % 1 == 0:
torch.save({'state_dict': net.state_dict()},
os.path.join(os.getcwd(), lane_config.SAVE_PATH,
"laneNet{}.pth.tar".format(epoch)))
trainF.close()
testF.close()
torch.save({'state_dict': net.state_dict()},
os.path.join(os.getcwd(), lane_config.SAVE_PATH,
"finalNet.pth.tar"))
def main():
#设置model parameters
lane_config = Config()
#查看路径是否存在
if os.path.exists(lane_config.SAVE_PATH):
#如果存在的话，全部删掉
shutil.rmtree(lane_config.SAVE_PATH)
#建立一个新的文件件
os.makedirs(lane_config.SAVE_PATH, exist_ok=True)
#打开文件夹，在这两个文件内记录
trainF = open(os.path.join(lane_config.SAVE_PATH, "train.csv"), 'w')
testF = open(os.path.join(lane_config.SAVE_PATH, "test.csv"), 'w')
#set up dataset
# 'pin_memory'意味着生成的Tensor数据最开始是属于内存中的索页，这样的话转到GPU的显存就会很快
kwargs = {
'num_workers': 4,
'pin_memory': True
} if torch.cuda.is_available() else {}
#set up training dataset
train_dataset = LaneDataset("train.csv",
transform=transforms.Compose([
ImageAug(),
DeformAug(),
ScaleAug(),
CutOut(32, 0.5),
ToTensor()
]))
#set up training dataset 的dataloader
train_data_batch = DataLoader(train_dataset,
batch_size=8 * len(device_list),
shuffle=True,
drop_last=True,
**kwargs)
#set ip validation dataset
val_dataset = LaneDataset("val.csv",
transform=transforms.Compose([ToTensor()]))
#set up validation dataset's dataloader
val_data_batch = DataLoader(val_dataset,
batch_size=4 * len(device_list),
shuffle=False,
drop_last=False,
**kwargs)
#build model
net = DeeplabV3Plus(lane_config)
#检测一下环境中是否存在GPU，存在的话就转化成cuda的格式
if torch.cuda.is_available():
net = net.cuda(device=device_list[0])
net = torch.nn.DataParallel(net, device_ids=device_list)
#config the optimizer
# optimizer = torch.optim.SGD(net.parameters(), lr=lane_config.BASE_LR,
# momentum=0.9, weight_decay=lane_config.WEIGHT_DECAY)
#查一下weight_decay的作用
optimizer = torch.optim.Adam(net.parameters(),
lr=lane_config.BASE_LR,
weight_decay=lane_config.WEIGHT_DECAY)
#Training and test
for epoch in range(lane_config.EPOCHS):
# adjust_lr(optimizer, epoch)
#在train_epoch中
train_epoch(net, epoch, train_data_batch, optimizer, trainF,
lane_config)
test(net, epoch, val_data_batch, testF, lane_config)
if epoch % 2 == 0:
torch.save({'state_dict': net.state_dict()},
os.path.join(os.getcwd(), lane_config.SAVE_PATH,
"laneNet{}.pth.tar".format(epoch)))
trainF.close()
testF.close()
torch.save({'state_dict': net.state_dict()},
os.path.join(os.getcwd(), lane_config.SAVE_PATH,
"finalNet.pth.tar"))
from tqdm import tqdm
import torch
import numpy as np
import matplotlib.pyplot as plt
from torchvision import transforms
from torch.utils.data import DataLoader
from utils.image_process import LaneDataset, ImageAug, DeformAug
from utils.image_process import ScaleAug, CutOut, ToTensor
kwargs = {'num_workers': 4, 'pin_memory': True} if torch.cuda.is_available() else {}
training_dataset = LaneDataset("train.csv", transform=transforms.Compose([ImageAug(), DeformAug(),
ScaleAug(), CutOut(32,0.5), ToTensor()]))
#真正开始处理数据
training_data_batch = DataLoader(training_dataset, batch_size=16,
shuffle=True, drop_last=True, **kwargs)
"""
102
20
2"""
for batch_item in training_data_batch:
image, mask = batch_item['image'], batch_item['mask'] #得到的就是经过数据处理的
if torch.cuda.is_available():
image, mask = image.cuda(), mask.cuda()
#如果有模型的话，就是讲数据加载进模型开始训练了
# prediction = model(image)
# loss = f (prediction,mask)
