1. School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
2. National Engineering Laboratory for Video Technology, Peking University, Haidian District, Beijing, China
3. University Grenoble Alpes, Inria, CNRS, Grenoble INP, LJK, avenue de l’Europe, Grenoble, France
4. University of California, Santa Barbara, CA, USA