168支队伍参赛，17支提交方案，实测夜间雨滴去除效果。
NTIRE 2026 The Second Challenge on Day and Night Raindrop Removal for Dual-Focused Images: Methods and Results
- 基于真实数据集的双焦点雨滴去除挑战赛
- 14,139张训练图、593张测试图，涵盖昼夜不同光照条件
- 17支团队提交有效方案，推动雨滴去除技术实用化
本文概述了NTIRE 2026第二届双焦点图像昼夜雨滴去除挑战赛。在首届成功基础上，本届挑战赛吸引了众多优秀解决方案，所有方法均在真实世界雨滴清晰度数据集~\cite{jin2024raindrop}上开发与评估。本次数据集包含14,139张训练图像、407张验证图像和593张测试图像。挑战核心目标是建立一种在多种光照与对焦条件下具备强鲁棒性的雨滴去除基准。共有168支队伍注册，17支队伍提交了有效的最终方案与技术报告。所提交方法在雨滴清晰度数据集上表现优异，体现了该挑战任务的持续进步。
原文摘要 · Abstract (English)
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.
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