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We present a novel formulation to removing reflection from polarized images in the wild. We first identify the misalignment issues of existing reflection removal datasets where the collected reflection-free images are not perfectly aligned…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Chenyang Lei , Xuhua Huang , Mengdi Zhang , Qiong Yan , Wenxiu Sun , Qifeng Chen

Nighttime images captured under hazy conditions suffer from severe quality degradation, including low visibility, color distortion, and reduced contrast, caused by the combined effects of atmospheric scattering, absorption by suspended…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Francesco Moretti , Giulia Bianchi , Andrea Gallo

Underwater images suffer from extremely unfavourable conditions. Light is heavily attenuated and scattered. Attenuation creates change in hue, scattering causes so called veiling light. General state of the art methods for enhancing image…

Computer Vision and Pattern Recognition · Computer Science 2018-07-12 Tomasz Łuczyński , Andreas Birk

This paper aims to recover the intrinsic reflectance layer and shading layer given a single image. Though this intrinsic image decomposition problem has been studied for decades, it remains a significant challenge in cases of complex…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Xiaodong Wang , Zijun He , Xin Yuan

Reducing the atmospheric haze and enhancing image clarity is crucial for computer vision applications. The lack of real-life hazy ground truth images necessitates synthetic datasets, which often lack diverse haze types, impeding effective…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Md Tanvir Islam , Nasir Rahim , Saeed Anwar , Muhammad Saqib , Sambit Bakshi , Khan Muhammad

The recent physical model-free dehazing methods have achieved state-of-the-art performances. However, without the guidance of physical models, the performances degrade rapidly when applied to real scenarios due to the unavailable or…

Image and Video Processing · Electrical Eng. & Systems 2021-03-16 Yudong Liang , Bin Wang , Jiaying Liu , Deyu Li , Yuhua Qian , Wenqi Ren

Single-image human relighting aims to relight a target human under new lighting conditions by decomposing the input image into albedo, shape and lighting. Although plausible relighting results can be achieved, previous methods suffer from…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Chaonan Ji , Tao Yu , Kaiwen Guo , Jingxin Liu , Yebin Liu

Rain effect in images typically is annoying for many multimedia and computer vision tasks. For removing rain effect from a single image, deep leaning techniques have been attracting considerable attentions. This paper designs a novel…

Computer Vision and Pattern Recognition · Computer Science 2018-04-10 Siyuan LI , Wenqi Ren , Jiawan Zhang , Jinke Yu , Xiaojie Guo

Existing research based on deep learning has extensively explored the problem of daytime image dehazing. However, few studies have considered the characteristics of nighttime hazy scenes. There are two distinctions between nighttime and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Xiaofeng Cong , Jie Gui , Jing Zhang , Junming Hou , Hao Shen

Image dehazing is quite challenging in dense-haze scenarios, where quite less original information remains in the hazy image. Though previous methods have made marvelous progress, they still suffer from information loss in content and color…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Hu Yu , Jie Huang , Kaiwen Zheng , Feng Zhao

We present a novel dehazing and low-light enhancement method based on an illumination map that is accurately estimated by a convolutional neural network (CNN). In this paper, the illumination map is used as a component for three different…

Computer Vision and Pattern Recognition · Computer Science 2019-07-29 Guisik Kim , Junseok Kwon

We present a comprehensive study and evaluation of existing single image deraining algorithms, using a new large-scale benchmark consisting of both synthetic and real-world rainy images.This dataset highlights diverse data sources and image…

Computer Vision and Pattern Recognition · Computer Science 2019-03-21 Siyuan Li , Iago Breno Araujo , Wenqi Ren , Zhangyang Wang , Eric K. Tokuda , Roberto Hirata Junior , Roberto Cesar-Junior , Jiawan Zhang , Xiaojie Guo , Xiaochun Cao

Echocardiography has been a prominent tool for the diagnosis of cardiac disease. However, these diagnoses can be heavily impeded by poor image quality. Acoustic clutter emerges due to multipath reflections imposed by layers of skin,…

Signal Processing · Electrical Eng. & Systems 2025-03-18 Tristan S. W. Stevens , Faik C. Meral , Jason Yu , Iason Z. Apostolakis , Jean-Luc Robert , Ruud J. G. van Sloun

Traditional reflection removal algorithms either use a single image as input, which suffers from intrinsic ambiguities, or use multiple images from a moving camera, which is inconvenient for users. We instead propose a learning-based…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 Simon Niklaus , Xuaner Cecilia Zhang , Jonathan T. Barron , Neal Wadhwa , Rahul Garg , Feng Liu , Tianfan Xue

Multi-exposure image fusion (MEF) synthesizes multiple, differently exposed images of the same scene into a single, well-exposed composite. Retinex theory, which separates image illumination from scene reflectance, provides a natural…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Haowen Bai , Jiangshe Zhang , Zixiang Zhao , Lilun Deng , Yukun Cui , Shuang Xu

In this paper, we rethink the low-light image enhancement task and propose a physically explainable and generative diffusion model for low-light image enhancement, termed as Diff-Retinex. We aim to integrate the advantages of the physical…

Computer Vision and Pattern Recognition · Computer Science 2023-08-28 Xunpeng Yi , Han Xu , Hao Zhang , Linfeng Tang , Jiayi Ma

Learning-based image dehazing methods are essential to assist autonomous systems in enhancing reliability. Due to the domain gap between synthetic and real domains, the internal information learned from synthesized images is usually…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Wenqi Ren , Qiyu Sun , Chaoqiang Zhao , Yang Tang

In this paper, we study the problem of image recovery from given partial (corrupted) observations. Recovering an image using a low-rank model has been an active research area in data analysis and machine learning. But often, images are not…

Computer Vision and Pattern Recognition · Computer Science 2020-03-13 Pawan Goyal , Hussam Al Daas , Peter Benner

Real-world Image Dehazing (RID) aims to alleviate haze-induced degradation in real-world settings. This task remains challenging due to the complexities in accurately modeling real haze distributions and the scarcity of paired real-world…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Chengyu Fang , Chunming He , Fengyang Xiao , Yulun Zhang , Longxiang Tang , Yuelin Zhang , Kai Li , Xiu Li

Removing multiple degradations, such as haze, rain, and blur, from real-world images poses a challenging and illposed problem. Recently, unified models that can handle different degradations have been proposed and yield promising results.…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Yongheng Zhang , Danfeng Yan , Yuanqiang Cai
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