arxivcs.CV2026-07-11
Self-supervised Automatic Matting
Xiaonan Hu, Zhiyuan Lu, Jingdong Zhao, Hao Lu
High-quality alpha mattes are notoriously expensive to annotate, creating a fundamental data bottleneck for deep image matting. While prior work attempts to reduce annotation cost using coarser labels like trimaps or masks, they remain reliant on costly per-pixel supervision, lim…