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Despite progress, deep neural networks still suffer performance declines under distribution shifts between training and test domains, leading to a substantial decrease in Quality of Experience (QoE) for applications. Existing test-time…

Machine Learning · Computer Science 2025-06-10 Qinting Jiang , Chuyang Ye , Dongyan Wei , Bingli Wang , Yuan Xue , Jingyan Jiang , Zhi Wang

Face restoration (FR) is a specialized field within image restoration that aims to recover low-quality (LQ) face images into high-quality (HQ) face images. Recent advances in deep learning technology have led to significant progress in FR…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Wenjie Li , Mei Wang , Kai Zhang , Juncheng Li , Xiaoming Li , Yuhang Zhang , Guangwei Gao , Weihong Deng , Chia-Wen Lin

Low-rank decomposition (LRD) is a state-of-the-art method for visual data reconstruction and modelling. However, it is a very challenging problem when the image data contains significant occlusion, noise, illumination variation, and…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Chen Chen , Baochang Zhang , Alessio Del Bue , Vittorio Murino

Face super-resolution aims to reconstruct a high-resolution face image from a low-resolution face image. Previous methods typically employ an encoder-decoder structure to extract facial structural features, where the direct downsampling…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Wenjie Li , Heng Guo , Xuannan Liu , Kongming Liang , Jiani Hu , Zhanyu Ma , Jun Guo

Existing face datasets often lack sufficient representation of occluding objects, which can hinder recognition, but also supply meaningful information to understand the visual context. In this work, we introduce Extended Labeled Faces…

Computer Vision and Pattern Recognition · Computer Science 2020-06-26 Rafael Redondo , Jaume Gibert

The rapid advancement of Generative Adversarial Networks (GANs) and diffusion models has enabled the creation of highly realistic synthetic images, presenting significant societal risks, such as misinformation and deception. As a result,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Jiazhen Yan , Ziqiang Li , Fan Wang , Ziwen He , Zhangjie Fu

Change detection in remote sensing imagery plays a vital role in various engineering applications, such as natural disaster monitoring, urban expansion tracking, and infrastructure management. Despite the remarkable progress of deep…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Xiaoyang Zhang , Guodong Fan , Guang-Yong Chen , Zhen Hua , Jinjiang Li , Min Gan , C. L. Philip Chen

While recent works on blind face image restoration have successfully produced impressive high-quality (HQ) images with abundant details from low-quality (LQ) input images, the generated content may not accurately reflect the real appearance…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Chi-Wei Hsiao , Yu-Lun Liu , Cheng-Kun Yang , Sheng-Po Kuo , Kevin Jou , Chia-Ping Chen

The remarkable success in face forgery techniques has received considerable attention in computer vision due to security concerns. We observe that up-sampling is a necessary step of most face forgery techniques, and cumulative up-sampling…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Honggu Liu , Xiaodan Li , Wenbo Zhou , Yuefeng Chen , Yuan He , Hui Xue , Weiming Zhang , Nenghai Yu

In many modern computer application problems, the classification of image data plays an important role. Among many different supervised machine learning models, convolutional neural networks (CNNs) and linear discriminant analysis (LDA) as…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Axel Klawonn , Martin Lanser , Janine Weber

Occluded person re-identification is one of the challenging areas of computer vision, which faces problems such as inefficient feature representation and low recognition accuracy. Convolutional neural network pays more attention to the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Yunbin Zhao , Songhao Zhu , Dongsheng Wang , Zhiwei Liang

We present a novel method for local image feature matching. Instead of performing image feature detection, description, and matching sequentially, we propose to first establish pixel-wise dense matches at a coarse level and later refine the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Jiaming Sun , Zehong Shen , Yuang Wang , Hujun Bao , Xiaowei Zhou

Person re-identification (re-id) aims to retrieve images of same identities across different camera views. Resolution mismatch occurs due to varying distances between person of interest and cameras, this significantly degrades the…

Computer Vision and Pattern Recognition · Computer Science 2021-09-17 Asad Munir , Chengjin Lyu , Bart Goossens , Wilfried Philips , Christian Micheloni

Face super-resolution methods usually aim at producing visually appealing results rather than preserving distinctive features for further face identification. In this work, we propose a deep learning method for face verification on very…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Esra Ataer-Cansizoglu , Michael Jones , Ziming Zhang , Alan Sullivan

Low-count PET is an efficient way to reduce radiation exposure and acquisition time, but the reconstructed images often suffer from low signal-to-noise ratio (SNR), thus affecting diagnosis and other downstream tasks. Recent advances in…

Image and Video Processing · Electrical Eng. & Systems 2023-10-09 Bo Zhou , Huidong Xie , Qiong Liu , Xiongchao Chen , Xueqi Guo , Zhicheng Feng , Jun Hou , S. Kevin Zhou , Biao Li , Axel Rominger , Kuangyu Shi , James S. Duncan , Chi Liu

Heterogeneous Face Recognition (HFR) refers to matching face images captured in different domains, such as thermal to visible images (VIS), sketches to visible images, near-infrared to visible, and so on. This is particularly useful in…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Anjith George , Amir Mohammadi , Sebastien Marcel

With the increasing deployment of intelligent CCTV systems in outdoor environments, there is a growing demand for face recognition systems optimized for challenging weather conditions. Adverse weather significantly degrades image quality,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Chang-Hwan Son , Cheol-Hwan Kim

Virtual Reality is regaining attention due to recent advancements in hardware technology. Immersive images / videos are becoming widely adopted to carry omnidirectional visual information. However, due to the requirements for higher spatial…

Image and Video Processing · Electrical Eng. & Systems 2021-06-15 Yize Jin , Anjul Patney , Alan Bovik

The model of low-dimensional manifold and sparse representation are two well-known concise models that suggest each data can be described by a few characteristics. Manifold learning is usually investigated for dimension reduction by…

Computer Vision and Pattern Recognition · Computer Science 2016-03-22 Xi Peng , Lei Zhang , Zhang Yi , Kok Kiong Tan

We introduce numerical optimization of multi-site support functions in the linear-scaling DFT code CONQUEST. Multi-site support functions, which are linear combinations of pseudo-atomic orbitals on a target atom and those neighbours within…

Materials Science · Physics 2016-01-20 Ayako Nakata , David R. Bowler , Tsuyoshi Miyazaki