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Diffusion models have been increasingly used as strong generative priors for solving inverse problems such as super-resolution in medical imaging. However, these approaches typically utilize a diffusion prior trained at a single scale,…

Image and Video Processing · Electrical Eng. & Systems 2026-02-02 Darshan Thaker , Mahmoud Mostapha , Radu Miron , Shihan Qiu , Mariappan Nadar

In supervised image restoration tasks, one key issue is how to obtain the aligned high-quality (HQ) and low-quality (LQ) training image pairs. Unfortunately, such HQ-LQ training pairs are hard to capture in practice, and hard to synthesize…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Tao Yang , Peiran Ren , Xuansong xie , Lei Zhang

This report presents the results of a proposed multi-scale fusion-based single image de-hazing algorithm, which can also be used for underwater image enhancement. Furthermore, the algorithm was designed for very fast operation and minimal…

Computer Vision and Pattern Recognition · Computer Science 2018-08-30 Uche A. Nnolim

In recent years, graph signal processing (GSP) technology has become popular in various fields, and graph Laplacian regularizers have also been introduced into convolutional sparse representation. This paper proposes a convolutional sparse…

Computer Science and Game Theory · Computer Science 2022-01-14 Xuefeng Peng , Fei Chen , Hang Cheng , Meiqing Wang

Image dehazing is an important task in the field of computer vision, aiming at restoring clear and detail-rich visual content from haze-affected images. However, when dealing with complex scenes, existing methods often struggle to strike a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Shuaibin Fan , Senming Zhong , Wenchao Yan , Minglong Xue

Visibility in hazy nighttime scenes is frequently reduced by multiple factors, including low light, intense glow, light scattering, and the presence of multicolored light sources. Existing nighttime dehazing methods often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Yeying Jin , Beibei Lin , Wending Yan , Yuan Yuan , Wei Ye , Robby T. Tan

We design a novel network architecture for learning discriminative image models that are employed to efficiently tackle the problem of grayscale and color image denoising. Based on the proposed architecture, we introduce two different…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Stamatios Lefkimmiatis

Computer vision is increasingly used in areas such as unmanned vehicles, surveillance systems and remote sensing. However, in foggy scenarios, image degradation leads to loss of target details, which seriously affects the accuracy and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Zhenjun Zhang , Lijun Tang , Hongjin Wang , Lilian Zhang , Yunze He , Yaonan Wang

Advances in microscopy imaging enable researchers to visualize structures at the nanoscale level thereby unraveling intricate details of biological organization. However, challenges such as image noise, photobleaching of fluorophores, and…

Image and Video Processing · Electrical Eng. & Systems 2024-09-19 Pamela Osuna-Vargas , Maren H. Wehrheim , Lucas Zinz , Johanna Rahm , Ashwin Balakrishnan , Alexandra Kaminer , Mike Heilemann , Matthias Kaschube

Image dehazing aims to restore image clarity and visual quality by reducing atmospheric scattering and absorption effects. While deep learning has made significant strides in this area, more and more methods are constrained by network…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Wang Yinglong , He Bin

Remote sensing images (RSIs) are frequently degraded by haze, fog, and thin clouds, which obscure surface reflectance and hinder downstream applications. This study presents the first systematic and unified survey of RSIs dehazing,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Heng Zhou , Xiaoxiong Liu , Zhenxi Zhang , Jieheng Yun , Chengyang Li , Yunchu Yang , Dongyi Xia , Chunna Tian , Xiao-Jun Wu

In this study, a new coupled Partial Differential Equation (CPDE) based image denoising model incorporating space-time regularization into non-linear diffusion is proposed. This proposed model is fitted with additive Gaussian noise which…

Numerical Analysis · Mathematics 2019-08-08 Subit K. Jain , Sudeb Majee , Rajendra K. Ray , Ananta K. Majee

Real-world image denoising is an extremely important image processing problem, which aims to recover clean images from noisy images captured in natural environments. In recent years, diffusion models have achieved very promising results in…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Cheng Yang , Lijing Liang , Zhixun Su

We show how to insert an object from one image to another and get realistic results in the hard case, where the shading of the inserted object clashes with the shading of the scene. Rendering objects using an illumination model of the scene…

Computer Vision and Pattern Recognition · Computer Science 2022-09-14 Anand Bhattad , David A. Forsyth

Overfitting to synthetic training pairs remains a critical challenge in image dehazing, leading to poor generalization capability to real-world scenarios. To address this issue, existing approaches utilize unpaired realistic data for…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Haoyou Deng , Zhiqiang Li , Feng Zhang , Qingbo Lu , Zisheng Cao , Yuanjie Shao , Shuhang Gu , Changxin Gao , Nong Sang

Image denoising can remove natural noise that widely exists in images captured by multimedia devices due to low-quality imaging sensors, unstable image transmission processes, or low light conditions. Recent works also find that image…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Yupeng Cheng , Qing Guo , Felix Juefei-Xu , Wei Feng , Shang-Wei Lin , Weisi Lin , Yang Liu

Image denoising is a representative image restoration task in computer vision. Recent progress of image denoising from only noisy images has attracted much attention. Deep image prior (DIP) demonstrated successful image denoising from only…

Image and Video Processing · Electrical Eng. & Systems 2023-10-03 Tsukasa Takagi , Shinya Ishizaki , Shin-ichi Maeda

Image hazing aims to render a hazy image from a given clean one, which could be applied to a variety of practical applications such as gaming, filming, photographic filtering, and image dehazing. To generate plausible haze, we study two…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Boyun Li , Yijie Lin , Xiao Liu , Peng Hu , Jiancheng Lv , Xi Peng

Image denoising and demosaicking are the most important early stages in digital camera pipelines. They constitute a severely ill-posed problem that aims at reconstructing a full color image from a noisy color filter array (CFA) image. In…

Image and Video Processing · Electrical Eng. & Systems 2020-04-27 Qiyu Jin , Gabriele Facciolo , Jean-Michel Morel

Current novel view synthesis methods are typically designed for high-quality and clean input images. However, in foggy scenes, scattering and attenuation can significantly degrade the quality of rendering. Although NeRF-based dehazing…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Jinze Yu , Yiqun Wang , Aiheng Jiang , Zhengda Lu , Jianwei Guo , Yong Li , Hongxing Qin , Xiaopeng Zhang
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