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Underwater images are often affected by complex degradations such as light absorption, scattering, color casts, and artifacts, making enhancement critical for effective object detection, recognition, and scene understanding in aquatic…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Afrah Shaahid , Muzammil Behzad

Image contrast enhancement for outdoor vision is important for smart car auxiliary transport systems. The video frames captured in poor weather conditions are often characterized by poor visibility. Most image dehazing algorithms consider…

Computer Vision and Pattern Recognition · Computer Science 2015-10-06 Huimin Lu , Yujie Li , Shota Nakashima , Seiichi Serikawa

Image harmonization aims at adjusting the appearance of the foreground to make it more compatible with the background. Without exploring background illumination and its effects on the foreground elements, existing works are incapable of…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Zhongyun Hu , Ntumba Elie Nsampi , Xue Wang , Qing Wang

As vision based perception methods are usually built on the normal light assumption, there will be a serious safety issue when deploying them into low light environments. Recently, deep learning based methods have been proposed to enhance…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Junjie Hu , Xiyue Guo , Junfeng Chen , Guanqi Liang , Fuqin Deng , Tin lun Lam

Image dehazing is a crucial task that involves the enhancement of degraded images to recover their sharpness and textures. While vision Transformers have exhibited impressive results in diverse dehazing tasks, their quadratic complexity and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Xiongfei Su , Siyuan Li , Yuning Cui , Miao Cao , Yulun Zhang , Zheng Chen , Zongliang Wu , Zedong Wang , Yuanlong Zhang , Xin Yuan

Multi-stage architectures have exhibited efficacy in image dehazing, which usually decomposes a challenging task into multiple more tractable sub-tasks and progressively estimates latent hazy-free images. Despite the remarkable progress,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Hao Shen , Zhong-Qiu Zhao , Yulun Zhang , Zhao Zhang

Low-Light Image Enhancement (LLIE) task tends to restore the details and visual information from corrupted low-light images. Most existing methods learn the mapping function between low/normal-light images by Deep Neural Networks (DNNs) on…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Qingsen Yan , Yixu Feng , Cheng Zhang , Pei Wang , Peng Wu , Wei Dong , Jinqiu Sun , Yanning Zhang

Single image dehazing is a critical image pre-processing step for subsequent high-level computer vision tasks. However, it remains challenging due to its ill-posed nature. Existing dehazing models tend to suffer from model overcomplexity…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Jing Zhang , Dacheng Tao

Underwater image enhancement (UIE) is a highly challenging task due to the complexity of underwater environment and the diversity of underwater image degradation. Due to the application of deep learning, current UIE methods have made…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Yi Liu , Qiuping Jiang , Xinyi Wang , Ting Luo , Jingchun Zhou

Real-world low-light images often suffer from complex degradations such as local overexposure, low brightness, noise, and uneven illumination. Supervised methods tend to overfit to specific scenarios, while unsupervised methods, though…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Huaqiu Li , Xiaowan Hu , Haoqian Wang

This paper proposes a lightweight neural network designed for realistic image dehazing, utilizing a Distilled Pooling Transformer Encoder, named DPTE-Net. Recently, while vision transformers (ViTs) have achieved great success in various…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Le-Anh Tran , Dong-Chul Park

Various factors such as ambient lighting conditions, noise, motion blur, etc. affect the quality of captured face images. Poor quality face images often reduce the performance of face analysis and recognition systems. Hence, it is important…

Computer Vision and Pattern Recognition · Computer Science 2021-05-17 Rajeev Yasarla , Hamid Reza Vaezi Joze , Vishal M Patel

This paper presents a comprehensive survey of low-light image and video enhancement, addressing two primary challenges in the field. The first challenge is the prevalence of mixed over-/under-exposed images, which are not adequately…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Shen Zheng , Yiling Ma , Jinqian Pan , Changjie Lu , Gaurav Gupta

Low-light image enhancement (LLIE) aims at improving the perception or interpretability of an image captured in an environment with poor illumination. Recent advances in this area are dominated by deep learning-based solutions, where many…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Chongyi Li , Chunle Guo , Linghao Han , Jun Jiang , Ming-Ming Cheng , Jinwei Gu , Chen Change Loy

Haze removal is an extremely challenging task, and object detection in the hazy environment has recently gained much attention due to the popularity of autonomous driving and traffic surveillance. In this work, the authors propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-15 Binghan Li , Yindong Hua , Mi Lu

Degradation of image quality due to the presence of haze is a very common phenomenon. Existing DehazeNet [3], MSCNN [11] tackled the drawbacks of hand crafted haze relevant features. However, these methods have the problem of color…

Computer Vision and Pattern Recognition · Computer Science 2018-01-26 Akshay Dudhane , Subrahmanyam Murala

We address the problem of semantic nighttime image segmentation and improve the state-of-the-art, by adapting daytime models to nighttime without using nighttime annotations. Moreover, we design a new evaluation framework to address the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Christos Sakaridis , Dengxin Dai , Luc Van Gool

Intrinsic image decomposition is the process of separating the reflectance and shading layers of an image, which is a challenging and underdetermined problem. In this paper, we propose to systematically address this problem using a deep…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Sai Bi , Nima Khademi Kalantari , Ravi Ramamoorthi

We present a lightweight two-stage framework for low-light image enhancement (LLIE) that achieves competitive perceptual quality with significantly fewer parameters than existing methods. Our approach combines frozen algorithm-based…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Shimon Murai , Teppei Kurita , Ryuta Satoh , Yusuke Moriuchi

Existing unsupervised low-light image enhancement methods lack enough effectiveness and generalization in practical applications. We suppose this is because of the absence of explicit supervision and the inherent gap between real-world…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Shuzhou Yang , Xuanyu Zhang , Yinhuai Wang , Jiwen Yu , Yuhan Wang , Jian Zhang