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High efficiency video coding (HEVC) has brought outperforming efficiency for video compression. To reduce the compression artifacts of HEVC, we propose a DenseNet based approach as the in-loop filter of HEVC, which leverages multiple…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Tianyi Li , Mai Xu , Ren Yang , Xiaoming Tao

Street Scene Change Detection (SSCD) aims to locate the changed regions between a given street-view image pair captured at different times, which is an important yet challenging task in the computer vision community. The intuitive way to…

Computer Vision and Pattern Recognition · Computer Science 2020-12-30 Yinjie Lei , Duo Peng , Pingping Zhang , Qiuhong Ke , Haifeng Li

Current learned image compression models typically exhibit high complexity, which demands significant computational resources. To overcome these challenges, we propose an innovative approach that employs hierarchical feature extraction…

Image and Video Processing · Electrical Eng. & Systems 2025-05-01 Ayman A. Ameen , Thomas Richter , André Kaup

Recently, deep learning-based image compression has made signifcant progresses, and has achieved better ratedistortion (R-D) performance than the latest traditional method, H.266/VVC, in both subjective metric and the more challenging…

Image and Video Processing · Electrical Eng. & Systems 2022-06-23 Haisheng Fu , Feng Liang , Jie Liang , Binglin Li , Guohe Zhang , Jingning Han

Medical image classification has developed rapidly under the impetus of the convolutional neural network (CNN). Due to the fixed size of the receptive field of the convolution kernel, it is difficult to capture the global features of…

Image and Video Processing · Electrical Eng. & Systems 2022-09-22 Xiangzuo Huo , Gang Sun , Shengwei Tian , Yan Wang , Long Yu , Jun Long , Wendong Zhang , Aolun Li

Diffusion models have achieved remarkable success in content generation but often incur prohibitive computational costs due to iterative sampling. Recent feature caching methods accelerate inference via temporal extrapolation, yet can…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Liang Feng , Shikang Zheng , Jiacheng Liu , Yuqi Lin , Qinming Zhou , Peiliang Cai , Xinyu Wang , Junjie Chen , Chang Zou , Yue Ma , Linfeng Zhang

Normalizing flows have recently demonstrated promising results for low-level vision tasks. For image super-resolution (SR), it learns to predict diverse photo-realistic high-resolution (HR) images from the low-resolution (LR) image rather…

Image and Video Processing · Electrical Eng. & Systems 2021-08-29 Jingyun Liang , Andreas Lugmayr , Kai Zhang , Martin Danelljan , Luc Van Gool , Radu Timofte

In frame-based vision, object detection faces substantial performance degradation under challenging conditions due to the limited sensing capability of conventional cameras. Event cameras output sparse and asynchronous events, providing a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Hu Cao , Zehua Zhang , Yan Xia , Xinyi Li , Jiahao Xia , Guang Chen , Alois Knoll

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

We propose a data-driven approach for deep convolutional neural network compression that achieves high accuracy with high throughput and low memory requirements. Current network compression methods either find a low-rank factorization of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Breton Minnehan , Andreas Savakis

Hierarchical federated learning (HFL) has emerged as a key architecture for large-scale wireless and Internet of Things systems, where devices communicate with nearby edge servers before reaching the cloud. In these environments, uplink…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-02-03 Amirreza Kazemi , Seyed Mohammad Azimi-Abarghouyi , Gabor Fodor , Carlo Fischione

With the increasing deployment of facial image data across a wide range of applications, efficient compression tailored to facial semantics has become critical for both storage and transmission. While recent learning-based face image…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Yimin Zhou , Yichong Xia , Bin Chen , Mingyao Hong , Jiawei Li , Zhi Wang , Yaowei Wang

While image generation with diffusion models has achieved a great success, generating images of higher resolution than the training size remains a challenging task due to the high computational cost. Current methods typically perform the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Zhengqiang Zhang , Ruihuang Li , Lei Zhang

Typical video compression systems consist of two main modules: motion coding and residual coding. This general architecture is adopted by classical coding schemes (such as international standards H.265 and H.266) and deep learning-based…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 David Alexandre , Hsueh-Ming Hang , Wen-Hsiao Peng

In object detection, multi-level prediction (e.g., FPN) and reweighting skills (e.g., focal loss) have drastically improved one-stage detector performance. However, the synergy between these two techniques is not fully explored in a unified…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Binghong Wu , Yehui Yang , Dalu Yang , Junde Wu , Xiaorong Wang , Haifeng Huang , Lei Wang , Yanwu Xu

To enhance image compression performance, recent deep neural network-based research can be divided into three categories: a learnable codec, a postprocessing network, and a compact representation network. The learnable codec has been…

Image and Video Processing · Electrical Eng. & Systems 2021-12-21 Hanbin Son , Taeoh Kim , Hyeongmin Lee , Sangyoun Lee

Recent advancements in deep learning-based image compression are notable. However, prevalent schemes that employ a serial context-adaptive entropy model to enhance rate-distortion (R-D) performance are markedly slow. Furthermore, the…

Applications · Statistics 2024-03-25 Haisheng Fu , Feng Liang , Jie Liang , Zhenman Fang , Guohe Zhang , Jingning Han

Hyperspectral image classification demands spatially coherent predictions and precise boundary delineation. Yet prevailing superpixel-based methods face an inherent contradiction: clustering aggregates similar pixels into regions, but the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Peifu Liu , Tingfa Xu , Jie Wang , Huan Chen , Huiyan Bai , Jianan Li

Given a real-world dataset, data condensation (DC) aims to synthesize a small synthetic dataset that captures the knowledge of a natural dataset while being usable for training models with comparable accuracy. Recent works propose to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Haizhong Zheng , Jiachen Sun , Shutong Wu , Bhavya Kailkhura , Zhuoqing Mao , Chaowei Xiao , Atul Prakash

In recent years, there has been rapid development in learned image compression techniques that prioritize ratedistortion-perceptual compression, preserving fine details even at lower bit-rates. However, current learning-based image…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Peirong Ning , Wei Jiang , Ronggang Wang