FAFS-UNet: Redesigning skip connections in UNet with feature aggregation and feature selection

Xiaoqian Zhang, Shukai Yang, Youtao Jiang, Yufeng Chen, Feng Sun

Abstract: Highlights•Redesigned skip connections, improving encoder–decoder information flow.•Cross-depth aggregation of encoder features to preserve spatial information.•Adaptive multi-scale info extraction improves segmentation performance.•The decoder’s active feature selection aids in better semantic recovery.