NTIRE 2025 Challenge on Image Super-Resolution (4): Methods and Results
This paper presents the NTIRE 2025 image super-resolution (4) challenge, one of the associated competitions of the 10th NTIRE Workshop at CVPR 2025. The challenge aims to recover high-resolution (HR) images from low-resolution (LR) counterparts generated through bicubic downsampling with a 4 scaling factor. The objective is to develop effective network designs or solutions that achieve state-of-the-art SR performance. To reflect the dual objectives of image SR research, the challenge includes two sub-tracks: (1) a restoration track, emphasizes pixel-wise accuracy and ranks submissions based on PSNR; (2) a perceptual track, focuses on visual realism and ranks results by a perceptual score. A total of 286 participants registered for the competition, with 25 teams submitting valid entries. This report summarizes the challenge design, datasets, evaluation protocol, the main results, and methods of each team. The challenge serves as a benchmark to advance the state of the art and foster progress in image SR.
View on arXiv@article{chen2025_2504.14582,
title={ NTIRE 2025 Challenge on Image Super-Resolution ($\times$4): Methods and Results },
author={ Zheng Chen and Kai Liu and Jue Gong and Jingkai Wang and Lei Sun and Zongwei Wu and Radu Timofte and Yulun Zhang and Xiangyu Kong and Xiaoxuan Yu and Hyunhee Park and Suejin Han and Hakjae Jeon and Dafeng Zhang and Hyung-Ju Chun and Donghun Ryou and Inju Ha and Bohyung Han and Lu Zhao and Yuyi Zhang and Pengyu Yan and Jiawei Hu and Pengwei Liu and Fengjun Guo and Hongyuan Yu and Pufan Xu and Zhijuan Huang and Shuyuan Cui and Peng Guo and Jiahui Liu and Dongkai Zhang and Heng Zhang and Huiyuan Fu and Huadong Ma and Yanhui Guo and Sisi Tian and Xin Liu and Jinwen Liang and Jie Liu and Jie Tang and Gangshan Wu and Zeyu Xiao and Zhuoyuan Li and Yinxiang Zhang and Wenxuan Cai and Vijayalaxmi Ashok Aralikatti and Nikhil Akalwadi and G Gyaneshwar Rao and Chaitra Desai and Ramesh Ashok Tabib and Uma Mudenagudi and Marcos V. Conde and Alejandro Merino and Bruno Longarela and Javier Abad and Weijun Yuan and Zhan Li and Zhanglu Chen and Boyang Yao and Aagam Jain and Milan Kumar Singh and Ankit Kumar and Shubh Kawa and Divyavardhan Singh and Anjali Sarvaiya and Kishor Upla and Raghavendra Ramachandra and Chia-Ming Lee and Yu-Fan Lin and Chih-Chung Hsu and Risheek V Hiremath and Yashaswini Palani and Yuxuan Jiang and Qiang Zhu and Siyue Teng and Fan Zhang and Shuyuan Zhu and Bing Zeng and David Bull and Jingwei Liao and Yuqing Yang and Wenda Shao and Junyi Zhao and Qisheng Xu and Kele Xu and Sunder Ali Khowaja and Ik Hyun Lee and Snehal Singh Tomar and Rajarshi Ray and Klaus Mueller and Sachin Chaudhary and Surya Vashisth and Akshay Dudhane and Praful Hambarde and Satya Naryan Tazi and Prashant Patil and Santosh Kumar Vipparthi and Subrahmanyam Murala and Bilel Benjdira and Anas M. Ali },
journal={arXiv preprint arXiv:2504.14582},
year={ 2025 }
}