Recently, deep learning based approaches have achieved great improvements in image matting. However, most of them require a user supplied trimap as an auxiliary input, which limits the matting applications in the real world. Our method applies a high-resolution detail branch (HRDB) that extracts fine-grained details of the foreground with keeping feature resolution unchanged.

2022: Guowei Chen, Yi Liu, Jian Wang, Juncai Peng, Yuying Hao, Lutao Chu, Shiyu Tang, Zewu Wu, Zeyu Chen, Zhiliang Yu, Yuning Du, Qingqing Dang, Xiaoguang Hu, Dianhai Yu

https://arxiv.org/pdf/2204.09433v1.pdf