NTIRE 2021 Challenge on Video Super-Resolution
Sanghyun Son, Suyoung Lee, Seungjun Nah, Radu Timofte, Kyoung Mu Lee, Kelvin C. K. Chan, Shangchen Zhou, Xiangyu Xu, Chen Change Loy, Boyuan Jiang, Chuming Lin, Yuchun Dong, Donghao Luo, Wenqing Chu, Xiaozhong Ji, Siqian Yang, Ying Tai, Chengjie Wang, Jilin Li, Feiyue Huang, Chengpeng Chen, Xiaojie Chu, Jie Zhang, Xin Lu, Liangyu Chen, Jing Lin, Guodong Du, Jia Hao, Xueyi Zou, Qi Zhang, Lielin Jiang, Xin Li, He Zheng, Fanglong Liu, Dongliang He, Fu Li, Qingqing Dang, Peng Yi, Zhongyuan Wang, Kui Jiang, Junjun Jiang, Jiayi Ma, Yuxiang Chen, Yutong Wang, Ting Liu, Qi-Chao Sun, Huanwei Liang, Yiming Li, Zekun Li, Zhubo Ruan, Fanjie Shang, Chen Guo, Haining Li, Renjun Luo, Longjie Shen, Kassiani Zafirouli, Konstantinos Karageorgos, Konstantinos Konstantoudakis, Anastasios Dimou, Petros Daras, Xiaowei Song, Zhuo Xu, Hanxi Liu, Mengxi Guo, Junlin Li, Yu Li, Ye Zhu, Qing Wang, Shijie Zhao, Xiaopeng Sun, Gen Zhan, Tangxin Xie, Yu Jia, Yunhua Lu, Wenhao Zhang, Mengdi Sun, Pablo Navarrete Michelini, Xueheng Zhang, Hao Jiang, Zhiyu Chen, Li Chen, Zhiwei Xiong, Zeyu Xiao, Ruikang Xu, Zhen Cheng, Xueyang Fu, Fenglong Song, Zhipeng Luo, Yuehan Yao, Saikat Dutta, Nisarg A. Shah, Sourya Dipta Das, Peng Zhao, Yukai Shi, Hongying Liu, Fanhua Shang, Yuanyuan Liu, Fei Chen, Fangxu Yu, Ruisheng Gao
Abstract
Super-Resolution (SR) is a fundamental computer vision task that aims to obtain a high-resolution clean image from the given low-resolution counterpart. This paper reviews the NTIRE 2021 Challenge on Video Super-Resolution. We present evaluation results from two competition tracks as well as the proposed solutions. Track 1 aims to develop conventional video SR methods focusing on the restoration quality. Track 2 assumes a more challenging environment with lower frame rates, casting spatio-temporal SR problem. In each competition, 247 and 223 participants have registered, respectively. During the final testing phase, 14 teams competed in each track to achieve state-of-the-art performance on video SR tasks.