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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

Inspired by the recently remarkable successes of Sparse Representation (SR), Collaborative Representation (CR) and sparse graph, we present a novel hypergraph model named Regression-based Hypergraph (RH) which utilizes the regression models…

Computer Vision and Pattern Recognition · Computer Science 2016-03-15 Sheng Huang , Dan Yang , Bo Liu , Xiaohong Zhang

The human visual system is remarkably robust against a wide range of naturally occurring variations and corruptions like rain or snow. In contrast, the performance of modern image recognition models strongly degrades when evaluated on…

Computer Vision and Pattern Recognition · Computer Science 2020-07-23 Evgenia Rusak , Lukas Schott , Roland S. Zimmermann , Julian Bitterwolf , Oliver Bringmann , Matthias Bethge , Wieland Brendel

Most existing works in Person Re-identification (ReID) focus on settings where illumination either is kept the same or has very little fluctuation. However, the changes in the illumination degree may affect the robustness of a ReID…

Computer Vision and Pattern Recognition · Computer Science 2020-05-27 Ziyue Zhang , Richard YD Xu , Shuai Jiang , Yang Li , Congzhentao Huang , Chen Deng

We present a novel adaptive random subspace learning algorithm (RSSL) for prediction purpose. This new framework is flexible where it can be adapted with any learning technique. In this paper, we tested the algorithm for regression and…

Machine Learning · Computer Science 2015-02-10 Mohamed Elshrif , Ernest Fokoue

Regressing the illumination of a scene from the representations of object appearances is popularly adopted in computational color constancy. However, it's still challenging due to intrinsic appearance and label ambiguities caused by unknown…

Computer Vision and Pattern Recognition · Computer Science 2019-12-25 Huanglin Yu , Ke Chen , Kaiqi Wang , Yanlin Qian , Zhaoxiang Zhang , Kui Jia

Current shadow detection methods perform poorly when detecting shadow regions that are small, unclear or have blurry edges. In this work, we attempt to address this problem on two fronts. First, we propose a Fine Context-aware Shadow…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Jeya Maria Jose Valanarasu , Vishal M. Patel

Enhancing the generalization capability of deep neural networks to unseen domains is crucial for safety-critical applications in the real world such as autonomous driving. To address this issue, this paper proposes a novel instance…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Sungha Choi , Sanghun Jung , Huiwon Yun , Joanne Kim , Seungryong Kim , Jaegul Choo

In this paper the use of Random Sprays Retinex (RSR) algorithm for global illumination estimation is proposed and its feasibility tested. Like other algorithms based on the Retinex model, RSR also provides local illumination estimation and…

Computer Vision and Pattern Recognition · Computer Science 2015-06-17 Nikola Banić , Sven Lončarić

We propose a simple data augmentation technique that can be applied to standard model-free reinforcement learning algorithms, enabling robust learning directly from pixels without the need for auxiliary losses or pre-training. The approach…

Machine Learning · Computer Science 2021-03-09 Ilya Kostrikov , Denis Yarats , Rob Fergus

Existing instance segmentation techniques are primarily tailored for high-visibility inputs, but their performance significantly deteriorates in extremely low-light environments. In this work, we take a deep look at instance segmentation in…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Linwei Chen , Ying Fu , Kaixuan Wei , Dezhi Zheng , Felix Heide

Masked autoencoder (MAE) shows that severe augmentation during training produces robust representations for high-level tasks. This paper brings the MAE-like framework to nighttime image enhancement, demonstrating that severe augmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Beibei Lin , Yeying Jin , Wending Yan , Wei Ye , Yuan Yuan , Robby T. Tan

Low-light images challenge both human perceptions and computer vision algorithms. It is crucial to make algorithms robust to enlighten low-light images for computational photography and computer vision applications such as real-time…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Shen Zheng , Gaurav Gupta

Enhancement of images from RGB cameras is of particular interest due to its wide range of ever-increasing applications such as medical imaging, satellite imaging, automated driving, etc. In autonomous driving, various techniques are used to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Mohamed Sabry , Gregory Schroeder , Joshua Varughese , Cristina Olaverri-Monreal

Imaging through dense fog presents unique challenges, with essential visual information crucial for applications like object detection and recognition obscured, thereby hindering conventional image processing methods. Despite improvements…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Libang Chen , Jinyan Lin , Qihang Bian , Yikun Liu , Jianying Zhou

Reversible adversarial examples (RAE) combine adversarial attacks and reversible data-hiding technology on a single image to prevent illegal access. Most RAE studies focus on achieving white-box attacks. In this paper, we propose a novel…

Cryptography and Security · Computer Science 2023-06-21 Haodong Zhang , Chi Man Pun , Xia Du

Contrastive representation learning seeks to acquire useful representations by estimating the shared information between multiple views of data. Here, the choice of data augmentation is sensitive to the quality of learned representations:…

Machine Learning · Statistics 2023-01-18 Kyungmin Lee , Jinwoo Shin

Intrinsic decomposition from a single image is a highly challenging task, due to its inherent ambiguity and the scarcity of training data. In contrast to traditional fully supervised learning approaches, in this paper we propose learning…

Computer Vision and Pattern Recognition · Computer Science 2018-02-07 Michael Janner , Jiajun Wu , Tejas D. Kulkarni , Ilker Yildirim , Joshua B. Tenenbaum

All existing image enhancement methods, such as HDR tone mapping, cannot recover A/D quantization losses due to insufficient or excessive lighting, (underflow and overflow problems). The loss of image details due to A/D quantization is…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Chang Liu , Xiaolin Wu , Xiao Shu

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