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Shadow removal can significantly improve the image visual quality and has many applications in computer vision. Deep learning methods based on CNNs have become the most effective approach for shadow removal by training on either paired…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Zhihao Liu , Hui Yin , Yang Mi , Mengyang Pu , Song Wang

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

Recently, the dense binary pixel Gigavision camera had been introduced, emulating a digital version of the photographic film. While seems to be a promising solution for HDR imaging, its output is not directly usable and requires an image…

Computer Vision and Pattern Recognition · Computer Science 2015-12-08 Or Litany , Tal Remez , Alex Bronstein

Removing rain streaks from a single image has been drawing considerable attention as rain streaks can severely degrade the image quality and affect the performance of existing outdoor vision tasks. While recent CNN-based derainers have…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Tianyu Wang , Xin Yang , Ke Xu , Shaozhe Chen , Qiang Zhang , Rynson Lau

This paper presents an improved and modified partial differential equation (PDE)-based de-hazing algorithm. The proposed method combines logarithmic image processing models in a PDE formulation refined with linear filter-based operators in…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Uche A. Nnolim

Images captured in hazy weather conditions often suffer from color contrast and color fidelity. This degradation is represented by transmission map which represents the amount of attenuation and airlight which represents the color of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Saad Bin Sami , Abdul Muqeet , Humera Tariq

Low-light hazy scenes commonly appear at dusk and early morning. The visual enhancement for low-light hazy images is an ill-posed problem. Even though numerous methods have been proposed for image dehazing and low-light enhancement…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Chaoqun Zhuang , Yunfei Liu , Sijia Wen , Feng Lu

All-in-one image restoration aims to handle diverse degradations within a single model. However, existing methods often suffer from three key limitations: 1) per-input computational overhead from dynamic degradation estimation; 2)…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Ao Li , Xiaoning Liu , Sheng Li , Yapeng Du , Zhen Long , Lei Luo , Le Zhang , Ce Zhu

Low-light image enhancement aims to restore the visibility of images captured by visual sensors in dim environments by addressing their inherent signal degradations, such as luminance attenuation and structural corruption. Although numerous…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Yicui Shi , Yuhan Chen , Xiangfei Huang , Zhenguo Wang , Wenxuan Yu , Ying Fang

Low Dose Computed Tomography (LDCT) is clinically desirable due to the reduced radiation to patients. However, the quality of LDCT images is often sub-optimal because of the inevitable strong quantum noise. Inspired by their unprecedent…

Image and Video Processing · Electrical Eng. & Systems 2021-02-02 Ti Bai , Dan Nguyen , Biling Wang , Steve Jiang

Restoring images from low-light data is a challenging problem. Most existing deep-network based algorithms are designed to be trained with pairwise images. Due to the lack of real-world datasets, they usually perform poorly when generalized…

Image and Video Processing · Electrical Eng. & Systems 2020-12-25 Yangyang Qu , Chao liu , Yongsheng Ou

Light field photography has been studied thoroughly in recent years. One of its drawbacks is the need for multi-lens in the imaging. To compensate that, compressed light field photography has been proposed to tackle the trade-offs between…

Computer Vision and Pattern Recognition · Computer Science 2019-02-22 Ofir Nabati , David Mendlovic , Raja Giryes

Image dehazing has become an important computational imaging topic in the recent years. However, due to the lack of ground truth images, the comparison of dehazing methods is not straightforward, nor objective. To overcome this issue we…

Computer Vision and Pattern Recognition · Computer Science 2018-04-17 Codruta O. Ancuti , Cosmin Ancuti , Radu Timofte , Christophe De Vleeschouwer

Rain removal plays an important role in the restoration of degraded images. Recently, data-driven methods have achieved remarkable success. However, these approaches neglect that the appearance of rain is often accompanied by low light…

Image and Video Processing · Electrical Eng. & Systems 2021-10-19 Yecong Wan , Yuanshuo Cheng , Mingwen Shao

Haze removal or dehazing is a challenging ill-posed problem that has drawn a significant attention in the last few years. Despite this growing interest, the scientific community is still lacking a reference dataset to evaluate objectively…

Computer Vision and Pattern Recognition · Computer Science 2018-05-07 Codruta O. Ancuti , Cosmin Ancuti , Radu Timofte , Christophe De Vleeschouwer

Visual surveillance technology is an indispensable functional component of advanced traffic management systems. It has been applied to perform traffic supervision tasks, such as object detection, tracking and recognition. However, adverse…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Yu Guo , Ryan Wen Liu , Jiangtian Nie , Lingjuan Lyu , Zehui Xiong , Jiawen Kang , Han Yu , Dusit Niyato

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

Image dehazing is a restoration task that aims to recover a clear image from a single hazy input. Traditional approaches rely on statistical priors and the physics-based atmospheric scattering model to reconstruct the haze-free image. While…

Image and Video Processing · Electrical Eng. & Systems 2025-10-24 Mahtab Movaheddrad , Laurence Palmer , C. -C. Jay Kuo

High dynamic range (HDR) imaging is an indispensable technique in modern photography. Traditional methods focus on HDR reconstruction from multiple images, solving the core problems of image alignment, fusion, and tone mapping, yet having a…

Image and Video Processing · Electrical Eng. & Systems 2022-10-31 Phuoc-Hieu Le , Quynh Le , Rang Nguyen , Binh-Son Hua

Varicolored haze caused by chromatic casts poses haze removal and depth estimation challenges. Recent learning-based depth estimation methods are mainly targeted at dehazing first and estimating depth subsequently from haze-free scenes.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Sixiang Chen , Tian Ye , Jun Shi , Yun Liu , JingXia Jiang , Erkang Chen , Peng Chen