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Noise modeling and reduction are fundamental tasks in low-level computer vision. They are particularly important for smartphone cameras relying on small sensors that exhibit visually noticeable noise. There has recently been renewed…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Shayan Kousha , Ali Maleky , Michael S. Brown , Marcus A. Brubaker

Cameras currently allow access to two image states: (i) a minimally processed linear raw-RGB image state (i.e., raw sensor data) or (ii) a highly-processed nonlinear image state (e.g., sRGB). There are many computer vision tasks that work…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Mahmoud Afifi , Abdelrahman Abdelhamed , Abdullah Abuolaim , Abhijith Punnappurath , Michael S. Brown

This paper presents a comprehensive review of the AIM 2025 Challenge on Inverse Tone Mapping (ITM). The challenge aimed to push forward the development of effective ITM algorithms for HDR image reconstruction from single LDR inputs,…

Signal reconstruction is a challenging aspect of computational imaging as it often involves solving ill-posed inverse problems. Recently, deep feed-forward neural networks have led to state-of-the-art results in solving various inverse…

Computer Vision and Pattern Recognition · Computer Science 2018-04-25 Akshat Dave , Anil Kumar Vadathya , Ramana Subramanyam , Rahul Baburajan , Kaushik Mitra

Machine learning techniques work best when the data used for training resembles the data used for evaluation. This holds true for learned single-image denoising algorithms, which are applied to real raw camera sensor readings but, due to…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Tim Brooks , Ben Mildenhall , Tianfan Xue , Jiawen Chen , Dillon Sharlet , Jonathan T. Barron

The increasing demand for computational photography and imaging on mobile platforms has led to the widespread development and integration of advanced image sensors with novel algorithms in camera systems. However, the scarcity of…

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

Image Signal Processors (ISPs) convert raw sensor signals into digital images, which significantly influence the image quality and the performance of downstream computer vision tasks. Designing ISP pipeline and tuning ISP parameters are two…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Yujin Wang , Tianyi Xu , Fan Zhang , Tianfan Xue , Jinwei Gu

The limited dynamic range of commercial compact camera sensors results in an inaccurate representation of scenes with varying illumination conditions, adversely affecting image quality and subsequently limiting the performance of underlying…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Pranjay Shyam , Sandeep Singh Sengar , Kuk-Jin Yoon , Kyung-Soo Kim

Modern end-to-end image signal processors (ISPs) can learn complex mappings from RAW/XYZ data to sRGB (and vice versa), opening new possibilities in image processing. However, the growing diversity of camera models, particularly in mobile…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Lingen Li , Mingde Yao , Xingyu Meng , Muquan Yu , Tianfan Xue , Jinwei Gu

Users frequently edit camera images post-capture to achieve their preferred photofinishing style. While editing in the RAW domain provides greater accuracy and flexibility, most edits are performed on the camera's display-referred output…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Abhijith Punnappurath , Luxi Zhao , Ke Zhao , Hue Nguyen , Radek Grzeszczuk , Michael S. Brown

Enhancing a low-light noisy RAW image into a well-exposed and clean sRGB image is a significant challenge for modern digital cameras. Prior approaches have difficulties in recovering fine-grained details and true colors of the scene under…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Qiang Wen , Zhefan Rao , Yazhou Xing , Qifeng Chen

Advancements in deep learning have ignited an explosion of research on efficient hardware for embedded computer vision. Hardware vision acceleration, however, does not address the cost of capturing and processing the image data that feeds…

Computer Vision and Pattern Recognition · Computer Science 2017-08-03 Mark Buckler , Suren Jayasuriya , Adrian Sampson

Unpaired smartphone ISP is a challenging problem due to the lack of scene and color alignment between RAW and target RGB images. Many existing methods either require paired data or rely heavily on adversarial training, which can become…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Yujin Cho , Flavien Armangeon , Yanhao Li

Image compression is an essential and last processing unit in the camera image signal processing (ISP) pipeline. While many studies have been made to replace the conventional ISP pipeline with a single end-to-end optimized deep learning…

Image and Video Processing · Electrical Eng. & Systems 2022-08-17 Wooseok Jeong , Seung-Won Jung

This paper presents a modular neural image signal processing (ISP) framework that processes raw inputs and renders high-quality display-referred images. Unlike prior neural ISP designs, our method introduces a high degree of modularity,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Mahmoud Afifi , Zhongling Wang , Ran Zhang , Michael S. Brown

Image signal processing (ISP) pipeline plays a fundamental role in digital cameras, which converts raw Bayer sensor data to RGB images. However, ISP-generated images usually suffer from imperfections due to the compounded degradations that…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yanhui Guo , Fangzhou Luo , Xiaolin Wu

Keypoint detection and local feature description are fundamental tasks in robotic perception, critical for applications such as SLAM, robot localization, feature matching, pose estimation, and 3D mapping. While existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Jiakai Lin , Jinchang Zhang , Guoyu Lu

Super-resolution is a fundamental problem in computer vision which aims to overcome the spatial limitation of camera sensors. While significant progress has been made in single image super-resolution, most algorithms only perform well on…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Xiangyu Xu , Yongrui Ma , Wenxiu Sun , Ming-Hsuan Yang

The goal of image restoration (IR), a fundamental issue in computer vision, is to restore a high-quality (HQ) image from its degraded low-quality (LQ) observation. Multiple HQ solutions may correspond to an LQ input in this poorly posed…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Zeyu Xiao , Jiawang Bai , Zhihe Lu , Zhiwei Xiong