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Due to the limits of bandwidth and storage space, digital images are usually down-scaled and compressed when transmitted over networks, resulting in loss of details and jarring artifacts that can lower the performance of high-level visual…

Computer Vision and Pattern Recognition · Computer Science 2020-12-21 Xiaoyu Xiang , Qian Lin , Jan P. Allebach

Stereo image super-resolution utilizes the cross-view complementary information brought by the disparity effect of left and right perspective images to reconstruct higher-quality images. Cascading feature extraction modules and cross-view…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Yunxiang Li , Wenbin Zou , Qiaomu Wei , Feng Huang , Jing Wu

In recent years we have witnessed an increasing interest in applying Deep Neural Networks (DNNs) to improve the rate-distortion performance in image compression. However, the existing approaches either train a post-processing DNN on the…

Image and Video Processing · Electrical Eng. & Systems 2020-10-27 Yannick Strümpler , Ren Yang , Radu Timofte

Diffusion models have demonstrated remarkable success in image restoration tasks. However, their multi-step denoising process introduces significant computational overhead, limiting their practical deployment. Furthermore, existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Jinpei Guo , Zheng Chen , Wenbo Li , Yong Guo , Yulun Zhang

The deep-learning-based image restoration and fusion methods have achieved remarkable results. However, the existing restoration and fusion methods paid little research attention to the robustness problem caused by dynamic degradation. In…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Aiqing Fang , Xinbo Zhao , Jiaqi Yang , Yanning Zhang

Lossy compression introduces complex compression artifacts, particularly the blocking artifacts, ringing effects and blurring. Existing algorithms either focus on removing blocking artifacts and produce blurred output, or restores sharpened…

Computer Vision and Pattern Recognition · Computer Science 2015-04-28 Chao Dong , Yubin Deng , Chen Change Loy , Xiaoou Tang

Video quality can suffer from limited internet speed while being streamed by users. Compression artifacts start to appear when the bitrate decreases to match the available bandwidth. Existing algorithms either focus on removing the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-29 Wen Ma , Qiuwen Lou , Arman Kazemi , Julian Faraone , Tariq Afzal

By acquiring two sets of tomographic measurements at distinct X-ray spectra, the dual-energy CT (DECT) enables quantitative material-specific imaging. However, the conventionally decomposed material basis images may encounter severe image…

With the popularity of stereo cameras in computer assisted surgery techniques, a second viewpoint would provide additional information in surgery. However, how to effectively access and use stereo information for the super-resolution (SR)…

Image and Video Processing · Electrical Eng. & Systems 2020-03-20 Tianyi Zhang , Yun Gu , Xiaolin Huang , Enmei Tu , Jie Yang

Deep learning methods have witnessed the great progress in image restoration with specific metrics (e.g., PSNR, SSIM). However, the perceptual quality of the restored image is relatively subjective, and it is necessary for users to control…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Wei Wang , Ruiming Guo , Yapeng Tian , Wenming Yang

High-resolution medical images can provide more detailed information for better diagnosis. Conventional medical image super-resolution relies on a single task which first performs the extraction of the features and then upscaling based on…

Image and Video Processing · Electrical Eng. & Systems 2025-04-25 Xiaoyan Kui , Zexin Ji , Beiji Zou , Yang Li , Yulan Dai , Liming Chen , Pierre Vera , Su Ruan

We propose a method for learned compression artifact removal by post-processing of BPG compressed images. We trained three networks of different sizes. We encoded input images using BPG with different QP values. We submitted the best…

Image and Video Processing · Electrical Eng. & Systems 2018-06-04 Ogün Kırmemiş , Gonca Bakar , A. Murat Tekalp

Popular methods usually use a degradation model in a supervised way to learn a watermark removal model. However, it is true that reference images are difficult to obtain in the real world, as well as collected images by cameras suffer from…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Chunwei Tian , Menghua Zheng , Bo Li , Yanning Zhang , Shichao Zhang , David Zhang

Neural style transfer is an emerging technique which is able to endow daily-life images with attractive artistic styles. Previous work has succeeded in applying convolutional neural networks (CNNs) to style transfer for monocular images or…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Xinyu Gong , Haozhi Huang , Lin Ma , Fumin Shen , Wei Liu , Tong Zhang

Powerful manipulation techniques have made digital image forgeries be easily created and widespread without leaving visual anomalies. The blind localization of tampered regions becomes quite significant for image forensics. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Kun Guo , Haochen Zhu , Gang Cao

Metal artifacts caused by the presence of metallic implants tremendously degrade the reconstructed computed tomography (CT) image quality, affecting clinical diagnosis or reducing the accuracy of organ delineation and dose calculation in…

Single image super resolution aims to enhance image quality with respect to spatial content, which is a fundamental task in computer vision. In this work, we address the task of single frame super resolution with the presence of image…

Computer Vision and Pattern Recognition · Computer Science 2020-03-05 Xinyi Zhang , Hang Dong , Zhe Hu , Wei-Sheng Lai , Fei Wang , Ming-Hsuan Yang

Although deep learning has yielded impressive performance for face recognition, many studies have shown that different networks learn different feature maps: while some networks are more receptive to pose and illumination others appear to…

Computer Vision and Pattern Recognition · Computer Science 2017-02-16 Navaneeth Bodla , Jingxiao Zheng , Hongyu Xu , Jun-Cheng Chen , Carlos Castillo , Rama Chellappa

Purpose: Deep learning-based MRI artifact correction methods often demonstrate poor generalization to clinical data. This limitation largely stems from the inability of deep learning models in reliably distinguishing motion artifacts from…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Ziheng Guo , Danqun Zheng , Shuai Li , Chengwei Chen , Boyang Pan , Xuezhou Li , Ziqin Yu , Langdi Zhong , Chenwei Shao , Yun Bian , Nan-Jie Gong

Traditional reflection removal algorithms either use a single image as input, which suffers from intrinsic ambiguities, or use multiple images from a moving camera, which is inconvenient for users. We instead propose a learning-based…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 Simon Niklaus , Xuaner Cecilia Zhang , Jonathan T. Barron , Neal Wadhwa , Rahul Garg , Feng Liu , Tianfan Xue