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Numerous low-level vision tasks operate in the RAW domain due to its linear properties, bit depth, and sensor designs. Despite this, RAW image datasets are scarce and more expensive to collect than the already large and public sRGB…

Camera Image Signal Processing (ISP) pipelines can get appealing results in different image signal processing tasks. Nonetheless, the majority of these methods, including those employing an encoder-decoder deep architecture for the task,…

Image and Video Processing · Electrical Eng. & Systems 2023-10-04 Yunhao Yang , Yi Wang , Chandrajit Bajaj

In smartphones and compact cameras, the Image Signal Processor (ISP) transforms the RAW sensor image into a human-readable sRGB image. Most popular super-resolution methods depart from a sRGB image and upscale it further, improving its…

Image and Video Processing · Electrical Eng. & Systems 2023-12-27 Marcos V. Conde , Florin Vasluianu , Radu Timofte

In most studies on learning-based image super-resolution (SR), the paired training dataset is created by downscaling high-resolution (HR) images with a predetermined operation (e.g., bicubic). However, these methods fail to super-resolve…

Image and Video Processing · Electrical Eng. & Systems 2020-02-27 Shunta Maeda

High dynamic range (HDR) photography is becoming increasingly popular and available by DSLR and mobile-phone cameras. While deep neural networks (DNN) have greatly impacted other domains of image manipulation, their use for HDR tone-mapping…

Image and Video Processing · Electrical Eng. & Systems 2021-11-02 Yael Vinker , Inbar Huberman-Spiegelglas , Raanan Fattal

High-quality photography in extreme low-light conditions is challenging but impactful for digital cameras. With advanced computing hardware, traditional camera image signal processor (ISP) algorithms are gradually being replaced by…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Amber Yijia Zheng , Yu Zhang , Jun Hu , Raymond A. Yeh , Chen Chen

Self-supervised learning (SSL) for RGB images has achieved significant success, yet there is still limited research on SSL for infrared images, primarily due to three prominent challenges: 1) the lack of a suitable large-scale infrared…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Tao Zhang , Kun Ding , Jinyong Wen , Yu Xiong , Zeyu Zhang , Shiming Xiang , Chunhong Pan

Image Signal Processor (ISP) comprises of various blocks to reconstruct image sensor raw data to final image consumed by human visual system or computer vision applications. Each block typically has many tuning parameters due to the…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Jun Nishimura , Timo Gerasimow , Sushma Rao , Aleksandar Sutic , Chyuan-Tyng Wu , Gilad Michael

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

Conventional cameras capture image irradiance on a sensor and convert it to RGB images using an image signal processor (ISP). The images can then be used for photography or visual computing tasks in a variety of applications, such as public…

Computer Vision and Pattern Recognition · Computer Science 2024-01-26 Zhihao Li , Ming Lu , Xu Zhang , Xin Feng , M. Salman Asif , Zhan Ma

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

In this paper, we propose a multi-objective camera ISP framework that utilizes Deep Reinforcement Learning (DRL) and camera ISP toolbox that consist of network-based and conventional ISP tools. The proposed DRL-based camera ISP framework…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Ukcheol Shin , Kyunghyun Lee , In So Kweon

Federated learning aims to tackle the ``isolated data island" problem, where it trains a collective model from physically isolated clients while safeguarding the privacy of users' data. However, supervised federated learning necessitates…

Artificial Intelligence · Computer Science 2024-04-18 Hao Yan , Yuhong Guo

Infrared and visible image fusion(IVIF) combines complementary modalities while preserving natural textures and salient thermal signatures. Existing solutions predominantly rely on extensive sets of rigidly aligned image pairs for training.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Yanglin Deng , Tianyang Xu , Chunyang Cheng , Hui Li , Xiao-jun Wu , Josef Kittler

The raw-RGB colors of a camera sensor vary due to the spectral sensitivity differences across different sensor makes and models. This paper focuses on the task of mapping between different sensor raw-RGB color spaces. Prior work addressed…

Computer Vision and Pattern Recognition · Computer Science 2021-09-07 Mahmoud Afifi , Abdullah Abuolaim

This paper investigates the problem of reconstructing hyperspectral (HS) images from single RGB images captured by commercial cameras, \textbf{without} using paired HS and RGB images during training. To tackle this challenge, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Zhiyu Zhu , Hui Liu , Junhui Hou , Huanqiang Zeng , Qingfu Zhang

Cameras capture scene-referred linear raw images, which are processed by onboard image signal processors (ISPs) into display-referred 8-bit sRGB outputs. Although raw data is more faithful for low-level vision tasks, collecting large-scale…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Dongyoung Kim , Junyong Lee , Abhijith Punnappurath , Mahmoud Afifi , Sangmin Han , Alex Levinshtein , Michael S. Brown

Image smoothing represents a fundamental component of many disparate computer vision and graphics applications. In this paper, we present a unified unsupervised (label-free) learning framework that facilitates generating flexible and…

Computer Vision and Pattern Recognition · Computer Science 2018-11-08 Qingnan Fan , Jiaolong Yang , David Wipf , Baoquan Chen , Xin Tong

Staining is essential in cell imaging and medical diagnostics but poses significant challenges, including high cost, time consumption, labor intensity, and irreversible tissue alterations. Recent advances in deep learning have enabled…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Ziwang Xu , Lanqing Guo , Satoshi Tsutsui , Shuyan Zhang , Alex C. Kot , Bihan Wen

Image denoising is a critical component in a camera's Image Signal Processing (ISP) pipeline. There are two typical ways to inject a denoiser into the ISP pipeline: applying a denoiser directly to captured raw frames (raw domain) or to the…

Image and Video Processing · Electrical Eng. & Systems 2024-11-05 Ruikang Li , Yujin Wang , Shiqi Chen , Fan Zhang , Jinwei Gu , Tianfan Xue