NTIRE 2023 Video Colorization Challenge. - Xiaoyang Kang 002; Xianhui Lin; Kai Zhang 008; Zheng Hui; Wangmeng Xiang; Jun-Yan He; Xiaoming Li 002; Peiran Ren; Xuansong Xie; Radu Timofte; Yixin Yang; Jinshan Pan; et al. (CVPR Workshops, 2023)