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In the field of low-light image enhancement, both traditional Retinex methods and advanced deep learning techniques such as Retinexformer have shown distinct advantages and limitations. Traditional Retinex methods, designed to mimic the…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Jiesong Bai , Yuhao Yin , Qiyuan He , Yuanxian Li , Xiaofeng Zhang

Transformer-based low-light enhancement methods have yielded promising performance by effectively capturing long-range dependencies in a global context. However, their elevated computational demand limits the scalability of multiple…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Xuanqi Zhang , Haijin Zeng , Jinwang Pan , Qiangqiang Shen , Yongyong Chen

Recent advancements in sRGB-to-RAW de-rendering have increasingly emphasized metadata-driven approaches to reconstruct RAW data from sRGB images, supplemented by partial RAW information. In image-based de-rendering, metadata is commonly…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Hongjun Chen , Wencheng Han , Huan Zheng , Jianbing Shen

Exposure Correction (EC) aims to recover proper exposure conditions for images captured under over-exposure or under-exposure scenarios. While existing deep learning models have shown promising results, few have fully embedded Retinex…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Wei Dong , Han Zhou , Yulun Zhang , Xiaohong Liu , Jun Chen

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

Low-light image enhancement is challenging due to complex degradations, including amplified noise, artifacts, and color distortion. While Retinex-based deep learning methods have achieved promising results, they primarily rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Youssef Aboelwafa , Hicham G. Elmongui , Marwan Torki

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

Images captured under low-light conditions present significant limitations in many applications, as poor lighting can obscure details, reduce contrast, and hide noise. Removing the illumination effects and enhancing the quality of such…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Daniel Torres , Joan Duran , Julia Navarro , Catalina Sbert

Low-light images, i.e. the images captured in low-light conditions, suffer from very poor visibility caused by low contrast, color distortion and significant measurement noise. Low-light image enhancement is about improving the visibility…

Image and Video Processing · Electrical Eng. & Systems 2020-07-08 Jinxiu Liang , Yong Xu , Yuhui Quan , Jingwen Wang , Haibin Ling , Hui Ji

Images obtained under low-light conditions will seriously affect the quality of the images. Solving the problem of poor low-light image quality can effectively improve the visual quality of images and better improve the usability of…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Yonglong Jiang , Liangliang Li , Yuan Xue , Hongbing Ma

Image deraining is crucial for improving visual quality and supporting reliable downstream vision tasks. Although Mamba-based models provide efficient sequence modeling, their limited ability to capture fine-grained details and lack of…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Zhiliang Zhu , Tao Zeng , Tao Yang , Guoliang Luo , Jiyong Zeng

Images obtained in real-world low-light conditions are not only low in brightness, but they also suffer from many other types of degradation, such as color distortion, unknown noise, detail loss and halo artifacts. In this paper, we propose…

Image and Video Processing · Electrical Eng. & Systems 2021-10-06 Xinxu Wei , Xianshi Zhang , Shisen Wang , Cheng Cheng , Yanlin Huang , Kaifu Yang , Yongjie Li

Low-dose CT (LDCT) significantly reduces the radiation dose received by patients, however, dose reduction introduces additional noise and artifacts. Currently, denoising methods based on convolutional neural networks (CNNs) face limitations…

Image and Video Processing · Electrical Eng. & Systems 2025-07-08 Linxuan Li , Wenjia Wei , Luyao Yang , Wenwen Zhang , Jiashu Dong , Yahua Liu , Hongshi Huang , Wei Zhao

Image shadow removal is a typical low-level vision task. Shadows cause local brightness shifts, which reduce the performance of downstream vision tasks. Currently, Transformer-based shadow removal methods suffer from quadratic computational…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Xiujin Zhu , Chee-Onn Chow , Joon Huang Chuah

Remote sensing image dehazing (RSID) aims to remove nonuniform and physically irregular haze factors for high-quality image restoration. The emergence of CNNs and Transformers has taken extraordinary strides in the RSID arena. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-17 Huiling Zhou , Xianhao Wu , Hongming Chen , Xiang Chen , Xin He

Recovering fine-grained details in extremely dark images remains challenging due to severe structural information loss and noise corruption. Existing enhancement methods often fail to preserve intricate details and sharp edges, limiting…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Tongshun Zhang , Pingping Liu , Zixuan Zhong , Zijian Zhang , Qiuzhan Zhou

Many low-light enhancement methods ignore intensive noise in original images. As a result, they often simultaneously enhance the noise as well. Furthermore, extra denoising procedures adopted by most methods ruin the details. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2018-05-01 Xutong Ren , Mading Li , Wen-Huang Cheng , Jiaying Liu

Quad Bayer demosaicing is the central challenge for enabling the widespread application of Hybrid Event-based Vision Sensors (HybridEVS). Although existing learning-based methods that leverage long-range dependency modeling have achieved…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Shiyang Zhou , Haijin Zeng , Yunfan Lu , Tong Shao , Ke Tang , Yongyong Chen , Jie Liu , Jingyong Su

Maritime images captured under low-light imaging condition easily suffer from low visibility and unexpected noise, leading to negative effects on maritime traffic supervision and management. To promote imaging performance, it is necessary…

Image and Video Processing · Electrical Eng. & Systems 2020-08-11 Yu Guo , Yuxu Lu , Ryan Wen Liu , Meifang Yang , Kwok Tai Chui

Contrast enhancement and noise removal are coupled problems for low-light image enhancement. The existing Retinex based methods do not take the coupling relation into consideration, resulting in under or over-smoothing of the enhanced…

Image and Video Processing · Electrical Eng. & Systems 2019-11-27 Yang Wang , Yang Cao , Zheng-Jun Zha , Jing Zhang , Zhiwei Xiong , Wei Zhang , Feng Wu
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