Title
NTIRE 2022 Challenge on Efficient Super-Resolution: Methods and Results.
Abstract
This paper reviews the NTIRE 2022 challenge on efficient single image super-resolution with focus on the proposed solutions and results. The task of the challenge was to super-resolve an input image with a magnification factor of $\times$4 based on pairs of low and corresponding high resolution images. The aim was to design a network for single image super-resolution that achieved improvement of efficiency measured according to several metrics including runtime, parameters, FLOPs, activations, and memory consumption while at least maintaining the PSNR of 29.00dB on DIV2K validation set. IMDN is set as the baseline for efficiency measurement. The challenge had 3 tracks including the main track (runtime), sub-track one (model complexity), and sub-track two (overall performance). In the main track, the practical runtime performance of the submissions was evaluated. The rank of the teams were determined directly by the absolute value of the average runtime on the validation set and test set. In sub-track one, the number of parameters and FLOPs were considered. And the individual rankings of the two metrics were summed up to determine a final ranking in this track. In sub-track two, all of the five metrics mentioned in the description of the challenge including runtime, parameter count, FLOPs, activations, and memory consumption were considered. Similar to sub-track one, the rankings of five metrics were summed up to determine a final ranking. The challenge had 303 registered participants, and 43 teams made valid submissions. They gauge the state-of-the-art in efficient single image super-resolution.
Year
Venue
DocType
2022
IEEE Conference on Computer Vision and Pattern Recognition
Conference
Citations 
PageRank 
References 
0
0.34
0
Authors
111
Name
Order
Citations
PageRank
Yawei Li1315.58
Kai Zhang268626.59
Radu Timofte31880118.45
Luc Van Gool401.35
Fangyuan Kong500.68
Mingxi Li601.35
Songwei Liu700.68
Zongcai Du800.34
Ding Liu961132.97
Chenhui Zhou1000.34
Jingyi Chen1100.34
Qingrui Han1200.34
Zheyuan Li1300.68
Yingqi Liu1400.68
Xiangyu Chen1500.68
Haoming Cai1641.74
Yu Qiao172267152.01
Chao Dong18206480.72
Long Sun1911.09
Jin-shan Pan2056730.84
Yi Zhu2100.34
Zhikai Zong2200.34
Xiaoxiao Liu2300.34
Hui Zheng247315.94
Tao Yang2516076.32
Peiran Ren2616211.58
Xuansong Xie2700.34
Xian-Sheng Hua286566328.17
Yanbo Wang2900.34
Xiaozhong Ji3032.06
Chuming Lin3194.14
Donghao Luo3232.42
Ying Tai3321325.74
Chengjie Wang344319.03
Zhizhong Zhang3500.34
Yuan Xie3600.34
Shen Cheng3711.37
Ziwei Luo3851.75
Lei Yu3951.41
Zhihong Wen4000.68
Qi Wu14100.34
Youwei Li4252.09
Haoqiang Fan4383.13
Jian Sun446014.76
Shuaicheng Liu4536328.26
Yuanfei Huang4600.34
Meiguang Jin4700.34
Hua Huang4880362.97
Jing Liu49178188.09
Xinjian Zhang5000.34