Fig. 3
From: U-Net combined with multi-scale attention mechanism for liver segmentation in CT images
The proposed MSAM. Here, H, W, and C respectively represent the resolution height, width, and number of channels of the input feature maps. The yellow square represents the convolution operation (k represents the size of the convolution kernel, f represents the number of convolution kernels), and the green square represents the bi-linear up-sampling operation (×2 represents that the scale of the up-sampling is 2 times). \(\otimes\) represents the point-by-point multiplication operation. \(\oplus\) represents the point-by-point addition operation