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NTIRE 2026 The Second Challenge on Day and Night Raindrop Removal for Dual-Focused Images: Methods and Results

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Main Authors:	Li, Xin, Jin, Yeying, Yao, Suhang, Lin, Beibei, Fan, Zhaoxin, Yan, Wending, Jin, Xin, Wu, Zongwei, Li, Bingchen, Shi, Peishu, Wang, Yufei, Li, Yu, Chen, Zhibo, Wen, Bihan, Tan, Robby T., Timofte, Radu, Li, Runzhe, Jiang, Kui, Yu, Zhaocheng, Chen, Yiang, Jiang, Junjun, Liu, Xianming, Gu, Hongde, Li, Zeliang, You, Mache, Dong, Jiangxin, Pan, Jinshan, Rong, Qiyu, Shao, Bowen, Jing, Hongyuan, Zhang, Mengmeng, Ding, Bo, Zhang, Hui, Ren, Yi, Kishawy, Mohab, Chen, Jun, Duong, Anh-Kiet, Gomez-Kramer, Petra, Carozza, Jean-Michel, Xing, Wangzhi, Lu, Xin, Gu, Enxuan, Zhang, Jingxi, Chen, Diqi, Yi, Qiaosi, Wei, Bingcai, Li, Wenjie, Tie, Bowen, Guo, Heng, Ma, Zhanyu, Tu, Jiachen, Xu, Guoyi, Jiang, Yaoxin, Liu, Cici, Shi, Yaokun, Mellado, Paula Garrido, Feijoo, Daniel, Lara, Alvaro Garcia, Conde, Marcos V., Zhu, Zhidong, Xiong, Bangshu, Ou, Qiaofeng, Rao, Zhibo, Li, Wei, Zhang, Zida, Geng, Hui, Xu, Qisheng, Deng, Xuyao, Wang, Changjian, Xu, Kele, Dong, Guanglu, Zhao, Qiyao, Zheng, Tianheng, Li, Chunlei, Mou, Lichao, Ren, Chao, Peng, Chang-De, Tsai, Chieh-Yu, Liu, Guan-Cheng, Kang, Li-Wei, Rajak, Abhishek, Singh, Milan Kumar, Kumar, Ankit, Sonone, Dimple, Upla, Kishor, Raja, Kiran, Zhao, Huilin, Xu, Xing, Chen, Chuan, Lao, Yeming, Xun, Wenjing, Yang, Li, Benjdira, Bilel, Ali, Anas M., Boulila, Wadii, Yang, Hao, Zhang, Ruikun, Pan, Liyuan
Format:	Preprint
Published:	2026
Subjects:	Computer Vision and Pattern Recognition
Online Access:	Acceder al recurso
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_version_	1866909038875246592
author	Li, Xin Jin, Yeying Yao, Suhang Lin, Beibei Fan, Zhaoxin Yan, Wending Jin, Xin Wu, Zongwei Li, Bingchen Shi, Peishu Wang, Yufei Li, Yu Chen, Zhibo Wen, Bihan Tan, Robby T. Timofte, Radu Li, Runzhe Jiang, Kui Yu, Zhaocheng Chen, Yiang Jiang, Junjun Liu, Xianming Gu, Hongde Li, Zeliang You, Mache Dong, Jiangxin Pan, Jinshan Rong, Qiyu Shao, Bowen Jing, Hongyuan Zhang, Mengmeng Ding, Bo Zhang, Hui Ren, Yi Kishawy, Mohab Chen, Jun Duong, Anh-Kiet Gomez-Kramer, Petra Carozza, Jean-Michel Xing, Wangzhi Lu, Xin Gu, Enxuan Zhang, Jingxi Chen, Diqi Yi, Qiaosi Wei, Bingcai Li, Wenjie Tie, Bowen Guo, Heng Ma, Zhanyu Tu, Jiachen Xu, Guoyi Jiang, Yaoxin Liu, Cici Shi, Yaokun Mellado, Paula Garrido Feijoo, Daniel Lara, Alvaro Garcia Conde, Marcos V. Zhu, Zhidong Xiong, Bangshu Ou, Qiaofeng Rao, Zhibo Li, Wei Zhang, Zida Geng, Hui Xu, Qisheng Deng, Xuyao Wang, Changjian Xu, Kele Dong, Guanglu Zhao, Qiyao Zheng, Tianheng Li, Chunlei Mou, Lichao Ren, Chao Peng, Chang-De Tsai, Chieh-Yu Liu, Guan-Cheng Kang, Li-Wei Rajak, Abhishek Singh, Milan Kumar Kumar, Ankit Sonone, Dimple Upla, Kishor Raja, Kiran Zhao, Huilin Xu, Xing Chen, Chuan Lao, Yeming Xun, Wenjing Yang, Li Benjdira, Bilel Ali, Anas M. Boulila, Wadii Yang, Hao Zhang, Ruikun Pan, Liyuan
author_facet	Li, Xin Jin, Yeying Yao, Suhang Lin, Beibei Fan, Zhaoxin Yan, Wending Jin, Xin Wu, Zongwei Li, Bingchen Shi, Peishu Wang, Yufei Li, Yu Chen, Zhibo Wen, Bihan Tan, Robby T. Timofte, Radu Li, Runzhe Jiang, Kui Yu, Zhaocheng Chen, Yiang Jiang, Junjun Liu, Xianming Gu, Hongde Li, Zeliang You, Mache Dong, Jiangxin Pan, Jinshan Rong, Qiyu Shao, Bowen Jing, Hongyuan Zhang, Mengmeng Ding, Bo Zhang, Hui Ren, Yi Kishawy, Mohab Chen, Jun Duong, Anh-Kiet Gomez-Kramer, Petra Carozza, Jean-Michel Xing, Wangzhi Lu, Xin Gu, Enxuan Zhang, Jingxi Chen, Diqi Yi, Qiaosi Wei, Bingcai Li, Wenjie Tie, Bowen Guo, Heng Ma, Zhanyu Tu, Jiachen Xu, Guoyi Jiang, Yaoxin Liu, Cici Shi, Yaokun Mellado, Paula Garrido Feijoo, Daniel Lara, Alvaro Garcia Conde, Marcos V. Zhu, Zhidong Xiong, Bangshu Ou, Qiaofeng Rao, Zhibo Li, Wei Zhang, Zida Geng, Hui Xu, Qisheng Deng, Xuyao Wang, Changjian Xu, Kele Dong, Guanglu Zhao, Qiyao Zheng, Tianheng Li, Chunlei Mou, Lichao Ren, Chao Peng, Chang-De Tsai, Chieh-Yu Liu, Guan-Cheng Kang, Li-Wei Rajak, Abhishek Singh, Milan Kumar Kumar, Ankit Sonone, Dimple Upla, Kishor Raja, Kiran Zhao, Huilin Xu, Xing Chen, Chuan Lao, Yeming Xun, Wenjing Yang, Li Benjdira, Bilel Ali, Anas M. Boulila, Wadii Yang, Hao Zhang, Ruikun Pan, Liyuan
contents	This paper presents an overview of the NTIRE 2026 Second Challenge on Day and Night Raindrop Removal for Dual-Focused Images. Building upon the success of the first edition, this challenge attracted a wide range of impressive solutions, all developed and evaluated on our real-world Raindrop Clarity dataset~\cite{jin2024raindrop}. For this edition, we adjust the dataset with 14,139 images for training, 407 images for validation, and 593 images for testing. The primary goal of this challenge is to establish a strong and practical benchmark for the removal of raindrops under various illumination and focus conditions. In total, 168 teams have registered for the competition, and 17 teams submitted valid final solutions and fact sheets for the testing phase. The submitted methods achieved strong performance on the Raindrop Clarity dataset, demonstrating the growing progress in this challenging task.
format	Preprint
id	arxiv_https___arxiv_org_abs_2604_10634
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	NTIRE 2026 The Second Challenge on Day and Night Raindrop Removal for Dual-Focused Images: Methods and Results Li, Xin Jin, Yeying Yao, Suhang Lin, Beibei Fan, Zhaoxin Yan, Wending Jin, Xin Wu, Zongwei Li, Bingchen Shi, Peishu Wang, Yufei Li, Yu Chen, Zhibo Wen, Bihan Tan, Robby T. Timofte, Radu Li, Runzhe Jiang, Kui Yu, Zhaocheng Chen, Yiang Jiang, Junjun Liu, Xianming Gu, Hongde Li, Zeliang You, Mache Dong, Jiangxin Pan, Jinshan Rong, Qiyu Shao, Bowen Jing, Hongyuan Zhang, Mengmeng Ding, Bo Zhang, Hui Ren, Yi Kishawy, Mohab Chen, Jun Duong, Anh-Kiet Gomez-Kramer, Petra Carozza, Jean-Michel Xing, Wangzhi Lu, Xin Gu, Enxuan Zhang, Jingxi Chen, Diqi Yi, Qiaosi Wei, Bingcai Li, Wenjie Tie, Bowen Guo, Heng Ma, Zhanyu Tu, Jiachen Xu, Guoyi Jiang, Yaoxin Liu, Cici Shi, Yaokun Mellado, Paula Garrido Feijoo, Daniel Lara, Alvaro Garcia Conde, Marcos V. Zhu, Zhidong Xiong, Bangshu Ou, Qiaofeng Rao, Zhibo Li, Wei Zhang, Zida Geng, Hui Xu, Qisheng Deng, Xuyao Wang, Changjian Xu, Kele Dong, Guanglu Zhao, Qiyao Zheng, Tianheng Li, Chunlei Mou, Lichao Ren, Chao Peng, Chang-De Tsai, Chieh-Yu Liu, Guan-Cheng Kang, Li-Wei Rajak, Abhishek Singh, Milan Kumar Kumar, Ankit Sonone, Dimple Upla, Kishor Raja, Kiran Zhao, Huilin Xu, Xing Chen, Chuan Lao, Yeming Xun, Wenjing Yang, Li Benjdira, Bilel Ali, Anas M. Boulila, Wadii Yang, Hao Zhang, Ruikun Pan, Liyuan Computer Vision and Pattern Recognition This paper presents an overview of the NTIRE 2026 Second Challenge on Day and Night Raindrop Removal for Dual-Focused Images. Building upon the success of the first edition, this challenge attracted a wide range of impressive solutions, all developed and evaluated on our real-world Raindrop Clarity dataset~\cite{jin2024raindrop}. For this edition, we adjust the dataset with 14,139 images for training, 407 images for validation, and 593 images for testing. The primary goal of this challenge is to establish a strong and practical benchmark for the removal of raindrops under various illumination and focus conditions. In total, 168 teams have registered for the competition, and 17 teams submitted valid final solutions and fact sheets for the testing phase. The submitted methods achieved strong performance on the Raindrop Clarity dataset, demonstrating the growing progress in this challenging task.
title	NTIRE 2026 The Second Challenge on Day and Night Raindrop Removal for Dual-Focused Images: Methods and Results
topic	Computer Vision and Pattern Recognition
url	https://arxiv.org/abs/2604.10634