r2unet

[huasheng76]

Hello, my R2UNet's training performance is very poor, worse than UNet. Do you have the same problem, and how can it be resolved?

[bigmb]

Using R2Unet can go wrong as recurrent blocks do not learn that well in some cases. Try running the nested Unet model and check the results.

[huasheng76]

Using R2Unet can go wrong as recurrent blocks do not learn that well in some cases. Try running the nested Unet model and check the results.

Okay, I'm trying to combine nested UNet and attention UNet to see how it performs. Are you interested in writing a piece of code that combines them?

[bigmb]

Won't be addding new features in this code now. But if you add a new model send me pull request.

[zhibaishouheilab]

`class Recurrent_block(nn.Module): """ Recurrent Block for R2Unet_CNN """ def init(self, out_ch, t=2): super(Recurrent_block, self).init()

    self.t = t
    self.out_ch = out_ch
    self.conv = nn.Sequential(
        nn.Conv2d(out_ch, out_ch, kernel_size=3, stride=1, padding=1, bias=True),
        nn.BatchNorm2d(out_ch),
        nn.ReLU(inplace=True)
    )

def forward(self, x):
    for i in range(self.t):
        if i == 0:
            x = self.conv(x)
        out = self.conv(x + x)
    return out`

Here may be an error: x1 = self.conv(x) out = self.conv(x + x1)