Compound W-Net with Fully Accumulative Residual Connections for Liver Segmentation Using CT Images

Figure 1

The architecture overview of the proposed 2 stacked U-Net main structure. B1 and B2 are contracting and expansion path for the first U-Net while B3 and B4 are the contracting and expansion path of the second U-Net. The colored lines represent the bridging connections between the different paths. Original, modified, and compound are three different structures of the bridging connections.