Fig. 2

Topology details of the employed CNN in Fig. 1 (adopted from [48, Fig. 6]). The operation Conv (f,h×w) stands for convolution, with F or 2F representing the number of filter kernels in each layer, and (h×w) representing the kernel size. The maxpooling and upsampling layers have a kernel size of (2×1). The stride of maxpooling layers is set to 2. The gray areas contain two symmetric procedures. All possible forward residual skip connections are added to the layers with matched dimensions