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Image defocus is inherent in the physics of image formation caused by the optical aberration of lenses, providing plentiful information on image quality. Unfortunately, existing quality enhancement approaches for compressed images neglect…

Image and Video Processing · Electrical Eng. & Systems 2023-03-14 Qunliang Xing , Mai Xu , Xin Deng , Yichen Guo

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

Federated learning allows distributed medical institutions to collaboratively learn a shared prediction model with privacy protection. While at clinical deployment, the models trained in federated learning can still suffer from performance…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Quande Liu , Cheng Chen , Jing Qin , Qi Dou , Pheng-Ann Heng

Existing single image dehazing methods have demonstrated satisfactory performance on homogeneous thin-haze images; however, they often struggle with non-homogeneous hazy images that exhibit spatially varying haze concentrations and abrupt…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Yingming Zhang , Wuqi Su , Qing Xiao , Yonggang Yang

We propose a practical approach to JPEG image decoding, utilizing a local implicit neural representation with continuous cosine formulation. The JPEG algorithm significantly quantizes discrete cosine transform (DCT) spectra to achieve a…

Image and Video Processing · Electrical Eng. & Systems 2024-04-09 Woo Kyoung Han , Sunghoon Im , Jaedeok Kim , Kyong Hwan Jin

In medical image segmentation tasks, Domain Generalization (DG) under the Federated Learning (FL) framework is crucial for addressing challenges related to privacy protection and data heterogeneity. However, traditional federated learning…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Yucheng Song , Chenxi Li , Haokang Ding , Zhining Liao , Zhifang Liao

Deep learning-based joint source-channel coding (deep JSCC) has been demonstrated to be an effective approach for wireless image transmission. Nevertheless, most existing work adopts an autoencoder framework to optimize conventional…

Signal Processing · Electrical Eng. & Systems 2025-03-25 Mingyu Yang , Bowen Liu , Boyang Wang , Hun-Seok Kim

Haze removal in aerial images is a challenging problem due to considerable variation in spatial details and varying contrast. Changes in particulate matter density often lead to degradation in visibility. Therefore, several approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Aditya Mehta , Harsh Sinha , Murari Mandal , Pratik Narang

This work aims to improve the applicability of diffusion models in realistic image restoration. Specifically, we enhance the diffusion model in several aspects such as network architecture, noise level, denoising steps, training image size,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Ziwei Luo , Fredrik K. Gustafsson , Zheng Zhao , Jens Sjölund , Thomas B. Schön

Image dehazing poses significant challenges in environmental perception. Recent research mainly focus on deep learning-based methods with single modality, while they may result in severe information loss especially in dense-haze scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Meng Yu , Te Cui , Haoyang Lu , Yufeng Yue

While image dehazing has advanced substantially in the past decade, most efforts have focused on short-range scenarios, leaving long-range haze removal under-explored. As distance increases, intensified scattering leads to severe haze and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Yi Li , Xiaoxiong Wang , Jiawei Wang , Yi Chang , Kai Cao , Luxin Yan

In video editing, the hallmark of a quality edit lies in its consistent and unobtrusive adjustment. Modification, when integrated, must be smooth and subtle, preserving the natural flow and aligning seamlessly with the original vision.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Sunjae Yoon , Gwanhyeong Koo , Geonwoo Kim , Chang D. Yoo

Image restoration of biological structures in microscopy poses unique challenges for preserving fine textures and sharp edges. While recent GAN-based image restoration formulations have introduced frequency-domain losses for natural images,…

Quantitative Methods · Quantitative Biology 2026-01-30 Xingjian Zhang , Claire Leclech , Louison Blivet-Bailly , Abdul I. Barakat , Elsa D. Angelini

Current deep learning methods for low-light image enhancement (LLIE) typically rely on pixel-wise mapping learned from paired data. However, these methods often overlook the importance of considering degradation representations, which can…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Tao Wang , Kaihao Zhang , Ziqian Shao , Wenhan Luo , Bjorn Stenger , Tae-Kyun Kim , Wei Liu , Hongdong Li

Haze obscures remote sensing images, hindering valuable information extraction. To this end, we propose RSHazeNet, an encoder-minimal and decoder-minimal framework for efficient remote sensing image dehazing. Specifically, regarding the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Yuanbo Wen , Tao Gao , Ziqi Li , Jing Zhang , Ting Chen

Dense image prediction tasks demand features with strong category information and precise spatial boundary details at high resolution. To achieve this, modern hierarchical models often utilize feature fusion, directly adding upsampled…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Linwei Chen , Ying Fu , Lin Gu , Chenggang Yan , Tatsuya Harada , Gao Huang

Magnetic resonance diffusion tensor imaging (DTI) is a critical tool for neural disease diagnosis. However, long scan time greatly hinders the widespread clinical use of DTI. To accelerate image acquisition, a feature-enhanced joint…

Image and Video Processing · Electrical Eng. & Systems 2024-05-28 Lang Zhang , Jinling He , Dong Liang , Hairong Zheng , Yanjie Zhu

While deep learning-based methods for blind face restoration have achieved unprecedented success, they still suffer from two major limitations. First, most of them deteriorate when facing complex degradations out of their training data.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Zongsheng Yue , Chen Change Loy

The prevalence of digital sensors, such as digital cameras and mobile phones, simplifies the acquisition of photos. Digital sensors, however, suffer from producing Moire when photographing objects having complex textures, which deteriorates…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Xi Cheng , Zhenyong Fu , Jian Yang

Learning based video compression attracts increasing attention in the past few years. The previous hybrid coding approaches rely on pixel space operations to reduce spatial and temporal redundancy, which may suffer from inaccurate motion…

Image and Video Processing · Electrical Eng. & Systems 2021-08-24 Zhihao Hu , Guo Lu , Dong Xu
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