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Learning-based methods especially with convolutional neural networks (CNN) are continuously showing superior performance in computer vision applications, ranging from image classification to restoration. For image classification, most…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Xiaoyu Lin

Deep learning (DL)-based joint source-channel coding (JSCC) methods have achieved remarkable success in wireless image transmission. However, these methods either focus on conventional distortion metrics that do not necessarily yield high…

Image and Video Processing · Electrical Eng. & Systems 2026-02-27 Ming Ye , Kui Cai , Cunhua Pan , Zhen Mei , Wanting Yang , Chunguo Li

Due to the light absorption and scattering induced by the water medium, underwater images usually suffer from some degradation problems, such as low contrast, color distortion, and blurring details, which aggravate the difficulty of…

Image and Video Processing · Electrical Eng. & Systems 2024-12-20 Runmin Cong , Wenyu Yang , Wei Zhang , Chongyi Li , Chun-Le Guo , Qingming Huang , Sam Kwong

The popularity of high and ultra-high definition displays has led to the need for methods to improve the quality of videos already obtained at much lower resolutions. Current Video Super-Resolution methods are not robust to mismatch between…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Santiago López-Tapia , Alice Lucas , Rafael Molina , Aggelos K. Katsaggelos

Due to the disparity between real-world degradations in user-generated content(UGC) images and synthetic degradations, traditional super-resolution methods struggle to generalize effectively, necessitating a more robust approach to model…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Yiwen Wang , Ying Liang , Yuxuan Zhang , Xinning Chai , Zhengxue Cheng , Yingsheng Qin , Yucai Yang , Rong Xie , Li Song

Under-display cameras have been proposed in recent years as a way to reduce the form factor of mobile devices while maximizing the screen area. Unfortunately, placing the camera behind the screen results in significant image distortions,…

Image and Video Processing · Electrical Eng. & Systems 2021-11-03 Miao Qi , Yuqi Li , Wolfgang Heidrich

Low-light image enhancement, such as recovering color and texture details from low-light images, is a complex and vital task. For automated driving, low-light scenarios will have serious implications for vision-based applications. To…

Image and Video Processing · Electrical Eng. & Systems 2021-09-01 Yangyang Qu , Kai Chen , Chao Liu , Yongsheng Ou

In various learning-based image restoration tasks, such as image denoising and image super-resolution, the degradation representations were widely used to model the degradation process and handle complicated degradation patterns. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Dasong Li , Yi Zhang , Ka Chun Cheung , Xiaogang Wang , Hongwei Qin , Hongsheng Li

Underwater image understanding is crucial for both submarine navigation and seabed exploration. However, the low illumination in underwater environments degrades the imaging quality, which in turn seriously deteriorates the performance of…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Xin Zuo , Jiaran Jiang , Jifeng Shen , Wankou Yang

In real-world underwater environment, exploration of seabed resources, underwater archaeology, and underwater fishing rely on a variety of sensors, vision sensor is the most important one due to its high information content, non-intrusive,…

Image and Video Processing · Electrical Eng. & Systems 2021-03-29 Nan Wang , Yabin Zhou , Fenglei Han , Haitao Zhu , Jingzheng Yao

Ultra-high-definition (UHD) images often suffer from severe degradations such as blur, haze, rain, or low-light conditions, which pose significant challenges for image restoration due to their high resolution and computational demands. In…

Image and Video Processing · Electrical Eng. & Systems 2025-11-10 S. Zhao , W. Lu , B. Wang , T. Wang , K. Zhang , H. Zhao

Image dehazing has witnessed significant advancements with the development of deep learning models. However, most existing methods focus solely on single-modal RGB features, neglecting the inherent correlation between scene depth and haze…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Zengyuan Zuo , Junjun Jiang , Gang Wu , Xianming Liu

Image restoration algorithms such as super resolution (SR) are indispensable pre-processing modules for object detection in degraded images. However, most of these algorithms assume the degradation is fixed and known a priori. When the real…

Image and Video Processing · Electrical Eng. & Systems 2022-01-10 Ziteng Cui , Yingying Zhu , Lin Gu , Guo-Jun Qi , Xiaoxiao Li , Peng Gao , Zenghui Zhang , Tatsuya Harada

Ultra-high-definition (UHD) video denoising requires simultaneously suppressing complex spatio-temporal degradations, preserving fine textures and chromatic stability, and maintaining efficient full-resolution 4K deployment. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Weiyuan He , Chen Wu , Pengwen Dai , Wei Wang , Dianjie Lu , Guijuan Zhang , Linwei Fan , Yongzhen Wang , Zhuoran Zheng

Convolutional neural network (CNN) based image enhancement methods such as super-resolution and detail enhancement have achieved remarkable performances. However, amounts of operations including convolution and parameters within the…

Image and Video Processing · Electrical Eng. & Systems 2022-05-03 Sangwook Baek , Yongsup Park , Youngo Park , Jungmin Lee , Kwangpyo Choi

In this paper, we propose a novel and efficient CNN-based framework that leverages local and global context information for image denoising. Due to the limitations of convolution itself, the CNN-based method is generally unable to construct…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 QiFan Li

Restoring images captured under adverse weather conditions is a fundamental task for many computer vision applications. However, most existing weather restoration approaches are only capable of handling a specific type of degradation, which…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Ruoxi Zhu , Zhengzhong Tu , Jiaming Liu , Alan C. Bovik , Yibo Fan

Underwater images are usually covered with a blue-greenish colour cast, making them distorted, blurry or low in contrast. This phenomenon occurs due to the light attenuation given by the scattering and absorption in the water column. In…

Image and Video Processing · Electrical Eng. & Systems 2022-11-21 Salma Gonzalez-Sabbagh , Antonio Robles-Kelly , Shang Gao

Ultra-high-definition (UHD) image restoration aims to specifically solve the problem of quality degradation in ultra-high-resolution images. Recent advancements in this field are predominantly driven by deep learning-based innovations,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Liyan Wang , Weixiang Zhou , Cong Wang , Kin-Man Lam , Zhixun Su , Jinshan Pan

Nowdays, most datasets used to train and evaluate super-resolution models are single-modal simulation datasets. However, due to the variety of image degradation types in the real world, models trained on single-modal simulation datasets do…

Image and Video Processing · Electrical Eng. & Systems 2020-04-14 Haoran Li , Weihong Quan , Meijun Yan , Jin zhang , Xiaoli Gong , Jin Zhou