NTIRE 2019 Challenge on Real Image Super-Resolution: Methods and Results
Jianrui Cai(Hong Kong Polytechnic University), Shuhang Gu, Radu Timofte, Lei Zhang, Xiao Liu(Hong Kong Polytechnic University), Yukang Ding(Hong Kong Polytechnic University), Dongliang He(Hong Kong Polytechnic University), Chao Li(Hong Kong Polytechnic University), Yi Fu(Hong Kong Polytechnic University), Shilei Wen(Hong Kong Polytechnic University), Ruicheng Feng(Hong Kong Polytechnic University), Jinjin Gu(Hong Kong Polytechnic University), Yu Qiao(Hong Kong Polytechnic University), Chao Dong(Hong Kong Polytechnic University), Park Dongwon(Hong Kong Polytechnic University), Se Young Chun(Hong Kong Polytechnic University), Sang‐Hoon Yoon(Hong Kong Polytechnic University), Junhyung Kwak(Hong Kong Polytechnic University), Donghee Son(Hong Kong Polytechnic University), Syed Waqas Zamir(Hong Kong Polytechnic University), Aditya Arora(Hong Kong Polytechnic University), Salman Khan(Hong Kong Polytechnic University), Fahad Shahbaz Khan(Hong Kong Polytechnic University), Ling Shao(Hong Kong Polytechnic University), Zhengping Wei(Hong Kong Polytechnic University), Lei Liu(Hong Kong Polytechnic University), Hong Cai(Hong Kong Polytechnic University), Darui Li(Hong Kong Polytechnic University), Fujie Gao(Hong Kong Polytechnic University), Hui Zheng(Hong Kong Polytechnic University), Xiumei Wang(Hong Kong Polytechnic University), Xinbo Gao(Hong Kong Polytechnic University), Guoan Cheng(Hong Kong Polytechnic University), Ai Matsune(Hong Kong Polytechnic University), Qiuyu Li(Hong Kong Polytechnic University), Leilei Zhu(Hong Kong Polytechnic University), Huaijuan Zang(Hong Kong Polytechnic University), Shu Zhan(Hong Kong Polytechnic University), Yajun Qiu(Hong Kong Polytechnic University), Ruxin wang(Hong Kong Polytechnic University), Jiawei Li(Hong Kong Polytechnic University), Yongcheng Jing(Hong Kong Polytechnic University), Mingli Song(Hong Kong Polytechnic University), Pengju Liu(Hong Kong Polytechnic University), Kai Zhang(Hong Kong Polytechnic University), Jingdong Liu(Hong Kong Polytechnic University), Jiye Liu(Hong Kong Polytechnic University), Hongzhi Zhang(Hong Kong Polytechnic University), Wangmeng Zuo(Hong Kong Polytechnic University), Wenyi Tang(Hong Kong Polytechnic University), Jing Liu(Hong Kong Polytechnic University), Youngjung Kim(Hong Kong Polytechnic University), Changyeop Shin(Hong Kong Polytechnic University), Min‐Beom Kim(Hong Kong Polytechnic University), Sungho Kim(Hong Kong Polytechnic University), Pablo Navarrete Michelini(Hong Kong Polytechnic University), Hanwen Liu(Hong Kong Polytechnic University), Dan Zhu(Hong Kong Polytechnic University), Xuan Xu(Hong Kong Polytechnic University), Xin Li(Hong Kong Polytechnic University), Furui Bai(Hong Kong Polytechnic University), Xiaopeng Sun(Hong Kong Polytechnic University), Lin Zha(Hong Kong Polytechnic University), Yuanfei Huang(Hong Kong Polytechnic University), Wen Lu(Hong Kong Polytechnic University), Yanpeng Cao(Hong Kong Polytechnic University), Chen Du(Hong Kong Polytechnic University), Zewei He(Hong Kong Polytechnic University), Sun Anshun(Hong Kong Polytechnic University), Siliang Tang(Hong Kong Polytechnic University), Hongfei Fan(Hong Kong Polytechnic University), Xiang Li(Hong Kong Polytechnic University), Li Guo(Hong Kong Polytechnic University), Wenjie Zhang(Hong Kong Polytechnic University), Yumei Zhang(Hong Kong Polytechnic University), Qingwen He(Hong Kong Polytechnic University), Jinghui Qin(Hong Kong Polytechnic University), Lishan Huang(Hong Kong Polytechnic University), Yukai Shi(Hong Kong Polytechnic University), Pengxu Wei(Hong Kong Polytechnic University), Wushao Wen(Hong Kong Polytechnic University), Liang Lin(Hong Kong Polytechnic University), Jun Yu(Hong Kong Polytechnic University), Guochen Xie(Hong Kong Polytechnic University), Mengyan Li(Hong Kong Polytechnic University), Rong Chen(Hong Kong Polytechnic University), Xiaotong Luo(Hong Kong Polytechnic University), Chen Hong(Hong Kong Polytechnic University), Yanyun Qu(Hong Kong Polytechnic University), Cuihua Li(Hong Kong Polytechnic University), Zhi-Song Liu(Hong Kong Polytechnic University), Liwen Wang(Hong Kong Polytechnic University), Chu-Tak Li(Hong Kong Polytechnic University), Can Zhao(Hong Kong Polytechnic University), Bowen Li(Hong Kong Polytechnic University), Chung-Chi Tsai(Hong Kong Polytechnic University), Shang‐Chih Chuang(Hong Kong Polytechnic University), Joon-Hee Choi(Hong Kong Polytechnic University), Joonsoo Kim(Hong Kong Polytechnic University), Xiaoyun Jiang(Hong Kong Polytechnic University), Ze Pan(Hong Kong Polytechnic University), Qunbo Lv(Hong Kong Polytechnic University), Zheng Tan(Hong Kong Polytechnic University), Peidong He(Hong Kong Polytechnic University)
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Abstract
This paper reviewed the 3rd NTIRE challenge on single-image super-resolution (restoration of rich details in a low-resolution image) with a focus on proposed solutions and results. The challenge had 1 track, which was aimed at the real-world single image super-resolution problem with an unknown scaling factor. Participants were mapping low-resolution images captured by a DSLR camera with a shorter focal length to their high-resolution images captured at a longer focal length. With this challenge, we introduced a novel real-world super-resolution dataset (RealSR). The track had 403 registered participants, and 36 teams competed in the final testing phase. They gauge the state-of-the-art in real-world single image super-resolution.
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