我的 U-Net 模型输入 5000x5000x3 的图像,但是运行时出现了上述错误。
以下是我的模型代码。
import torch
import torch.nn as nn
def double_conv(in_channels, out_channels):
return nn.Sequential(
nn.Conv2d(in_channels, out_channels, 3, padding=1),
nn.ReLU(inplace=True),
nn.Conv2d(out_channels, out_channels, 3, padding=1),
nn.ReLU(inplace=True)
)
class UNeT(nn.Module):
def __init__(self, n_class):
super().__init__()
self.dconv_down1 = double_conv(3, 64)
self.dconv_down2 = double_conv(64, 128)
self.dconv_down3 = double_conv(128, 256)
self.dconv_down4 = double_conv(256, 512)
self.maxpool = nn.MaxPool2d(2)
self.upsample = nn.Upsample(scale_factor=2, mode='bilinear',
align_corners=True)
self.dconv_up3 = double_conv(256 + 512, 256)
self.dconv_up2 = double_conv(128 + 256, 128)
self.dconv_up1 = double_conv(128 + 64, 64)
self.conv_last = nn.Conv2d(64, n_class, 1)
def forward(self, x):
conv1 = self.dconv_down1(x)
x = self.maxpool(conv1)
conv2 = self.dconv_down2(x)
x = self.maxpool(conv2)
conv3 = self.dconv_down3(x)
x = self.maxpool(conv3)
x = self.dconv_down4(x)
x = self.upsample(x)
x = torch.cat([x, conv3], dim=1)
x = self.dconv_up3(x)
x = self.upsample(x)
x = torch.cat([x, conv2], dim=1)
x = self.dconv_up2(x)
x = self.upsample(x)
x = torch.cat([x, conv1], dim=1)
x = self.dconv_up1(x)
out = self.conv_last(x)
return out
我试图执行model(inputs.unsqueeze_(0)),但是我遇到了一个不同的错误。
torch.reshape
而不是permute
?不确定我理解 permute 有什么不同。 - turnipreshape
/view
和permute
之间有很大的区别。阅读这个答案以了解更多信息。 - Shai