def forward(self, im_data):
    x1 = self.branch1(im_data)
    x2 = self.branch2(im_data)
    x3 = self.branch3(im_data)
    x4 = self.branch4(im_data)
    x = torch.cat((x1, x2, x3, x4), 1)
    x = self.fuse(x)
    return x
def forward(self, im_data):
    x1 = self.branch1(im_data)
    x2 = self.branch2(im_data)
    x3 = self.branch3(im_data)
    x4 = self.branch4(im_data)
    x = torch.cat((x1, x2, x3, x4), 1)
    x = self.fuse(x)
    return x