DSU-Net: Dual-Stage U-Net based on CNN and Transformer for skin lesion segmentation

Longwei Zhong, Tiansong Li, Meng Cui, Shaoguo Cui, Hongkui Wang, Li Yu

Abstract: Highlights•Dual-stage segmentation network performs coarse-to-fine segmentation of skin lesions.•Swin Transformer-based coarse segmentation networks identify the rough lesion region.•A refined segmentation network with more features refines the lesion region.•MFFM enhances DSU-Net ability to detect and understand lesions at different scales.•Two-stage balanced loss function enhances the synergy between segmentation networks.