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Existing computer vision technologies in artwork recognition focus mainly on instance retrieval or coarse-grained attribute classification. In this work, we present a novel dataset for fine-grained artwork attribute recognition. The images…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Chenyang Zhang , Christine Kaeser-Chen , Grace Vesom , Jennie Choi , Maria Kessler , Serge Belongie

Moire pattern frequently appears in photographs captured with mobile devices and digital cameras, potentially degrading image quality. Despite recent advancements in computer vision, image demoire'ing remains a challenging task due to the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 M Rakesh Reddy , Shubham Mandloi , Aman Kumar

In this paper, we present the Multi-Forgery Detection Challenge held concurrently with the IEEE Computer Society Workshop on Biometrics at CVPR 2022. Our Multi-Forgery Detection Challenge aims to detect automatic image manipulations…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Jianshu Li , Man Luo , Jian Liu , Tao Chen , Chengjie Wang , Ziwei Liu , Shuo Liu , Kewei Yang , Xuning Shao , Kang Chen , Boyuan Liu , Mingyu Guo , Ying Guo , Yingying Ao , Pengfei Gao

This paper reviews the first challenge on high-dynamic range (HDR) imaging that was part of the New Trends in Image Restoration and Enhancement (NTIRE) workshop, held in conjunction with CVPR 2021. This manuscript focuses on the newly…

Computer Vision and Pattern Recognition · Computer Science 2021-06-04 Eduardo Pérez-Pellitero , Sibi Catley-Chandar , Aleš Leonardis , Radu Timofte

Convolutional neural networks have been the focus of research aiming to solve image denoising problems, but their performance remains unsatisfactory for most applications. These networks are trained with synthetic noise distributions that…

Image and Video Processing · Electrical Eng. & Systems 2020-05-06 Benoit Brummer , Christophe De Vleeschouwer

Image denoising algorithms are evaluated using images corrupted by artificial noise, which may lead to incorrect conclusions about their performances on real noise. In this paper we introduce a dataset of color images corrupted by natural…

Computer Vision and Pattern Recognition · Computer Science 2018-02-06 Josue Anaya , Adrian Barbu

This paper presents NTIRE 2026, the 3rd Restore Any Image Model (RAIM) challenge on multi-exposure image fusion in dynamic scenes. We introduce a benchmark that targets a practical yet difficult HDR imaging setting, where exposure…

Recent developments in differentiable and neural rendering have made impressive breakthroughs in a variety of 2D and 3D tasks, e.g. novel view synthesis, 3D reconstruction. Typically, differentiable rendering relies on a dense viewpoint…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Michal Nazarczuk , Thomas Tanay , Sibi Catley-Chandar , Richard Shaw , Radu Timofte , Eduardo Pérez-Pellitero

The paper describes our experience collecting a new dataset for the light source estimation problem in a single image. The analysis of existing color targets is presented along with various technical and scientific aspects essential for…

Computer Vision and Pattern Recognition · Computer Science 2020-06-08 E. I. Ershov , A. V. Belokopytov , A. V. Savchik

The advancement of imaging devices and countless images generated everyday pose an increasingly high demand on image denoising, which still remains a challenging task in terms of both effectiveness and efficiency. To improve denoising…

Image and Video Processing · Electrical Eng. & Systems 2023-05-10 Zhaoming Kong , Fangxi Deng , Haomin Zhuang , Jun Yu , Lifang He , Xiaowei Yang

Composed Image Retrieval (CIR) is an emerging yet challenging task that allows users to search for target images using a multimodal query, comprising a reference image and a modification text specifying the user's desired changes to the…

Multimedia · Computer Science 2025-03-05 Xuemeng Song , Haoqiang Lin , Haokun Wen , Bohan Hou , Mingzhu Xu , Liqiang Nie

Most publicly available image quality databases have been created under highly controlled conditions by introducing graded simulated distortions onto high-quality photographs. However, images captured using typical real-world mobile camera…

Computer Vision and Pattern Recognition · Computer Science 2016-01-20 Deepti Ghadiyaram , Alan C. Bovik

Image denoising is a fundamental problem in computational photography, where achieving high perception with low distortion is highly demanding. Current methods either struggle with perceptual quality or suffer from significant distortion.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Tong Li , Hansen Feng , Lizhi Wang , Zhiwei Xiong , Hua Huang

Nefarious actors on social media and other platforms often spread rumors and falsehoods through images whose metadata (e.g., captions) have been modified to provide visual substantiation of the rumor/falsehood. This type of modification is…

Multimedia · Computer Science 2018-08-22 Ekraam Sabir , Wael AbdAlmageed , Yue Wu , Prem Natarajan

Motion blur is a common photography artifact in dynamic environments that typically comes jointly with the other types of degradation. This paper reviews the NTIRE 2021 Challenge on Image Deblurring. In this challenge report, we describe…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Seungjun Nah , Sanghyun Son , Suyoung Lee , Radu Timofte , Kyoung Mu Lee

Super Resolution is the problem of recovering a high-resolution image from a single or multiple low-resolution images of the same scene. It is an ill-posed problem since high frequency visual details of the scene are completely lost in…

Image and Video Processing · Electrical Eng. & Systems 2020-04-22 Hamid Reza Vaezi Joze , Ilya Zharkov , Karlton Powell , Carl Ringler , Luming Liang , Andy Roulston , Moshe Lutz , Vivek Pradeep

Developing and integrating advanced image sensors with novel algorithms in camera systems are prevalent with the increasing demand for computational photography and imaging on mobile platforms. However, the lack of high-quality data for…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Qingyu Yang , Guang Yang , Jun Jiang , Chongyi Li , Ruicheng Feng , Shangchen Zhou , Wenxiu Sun , Qingpeng Zhu , Chen Change Loy , Jinwei Gu

This paper presents an overview of the NTIRE 2025 Image Denoising Challenge ({\sigma} = 50), highlighting the proposed methodologies and corresponding results. The primary objective is to develop a network architecture capable of achieving…

In this paper, we analyze and discuss ShadowFormer in preparation for the NTIRE2023 Shadow Removal Challenge [1], implementing five key improvements: image alignment, the introduction of a perceptual quality loss function, the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Yuki Kondo , Riku Miyata , Fuma Yasue , Taito Naruki , Norimichi Ukita