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Person re-identification is an important task in video surveillance that aims to associate people across camera views at different locations and time. View variability is always a challenging problem seriously degrading person…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 Fangyi Liu , Lei Zhang

Visual relocalization is a key technique to autonomous driving, robotics, and virtual/augmented reality. After decades of explorations, absolute pose regression (APR), scene coordinate regression (SCR), and hierarchical methods (HMs) have…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Fei Xue , Ignas Budvytis , Daniel Olmeda Reino , Roberto Cipolla

Surface reconstruction with preservation of geometric features is a challenging computer vision task. Despite significant progress in implicit shape reconstruction, state-of-the-art mesh extraction methods often produce aliased,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Natalia Soboleva , Olga Gorbunova , Maria Ivanova , Evgeny Burnaev , Matthias Nießner , Denis Zorin , Alexey Artemov

Data acquisition in array signal processing (ASP) is costly because achieving high angular and range resolutions necessitates large antenna apertures and wide frequency bandwidths, respectively. The data requirements for ASP problems grow…

Signal Processing · Electrical Eng. & Systems 2024-12-10 Daqian Bao , Alex Saad-Falcon , Justin Romberg

3D Reconstruction of moving articulated objects without additional information about object structure is a challenging problem. Current methods overcome such challenges by employing category-specific skeletal models. Consequently, they do…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Hao Zhang , Fang Li , Samyak Rawlekar , Narendra Ahuja

Graph-based models have achieved great success in person re-identification tasks recently, which compute the graph topology structure (affinities) among different people first and then pass the information across them to achieve stronger…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Xulin Li , Yan Lu , Bin Liu , Yating Liu , Guojun Yin , Qi Chu , Jinyang Huang , Feng Zhu , Rui Zhao , Nenghai Yu

Person re-identification (ReID) plays a critical role in intelligent surveillance systems by linking identities across multiple cameras in complex environments. However, ReID faces significant challenges such as appearance variations,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Dang H. Pham , Tu N. Nguyen , Hoa N. Nguyen

Existing language-image pre-training for remote sensing object detection is constrained by Monolithic Label Learning, which relies on exhaustively enumerating open-set categories via black-box data to acquire fine-grained representations,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Chenxu Wang , Yuxuan Li , Yunheng Li , Xiang Li , Jingyuan Xia , Qibin Hou

The primary challenges in visible-infrared person re-identification arise from the differences between visible (vis) and infrared (ir) images, including inter-modal and intra-modal variations. These challenges are further complicated by…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Jiarui Li , Zhen Qiu , Yilin Yang , Yuqi Li , Zeyu Dong , Chuanguang Yang

Most video surveillance systems use both RGB and infrared cameras, making it a vital technique to re-identify a person cross the RGB and infrared modalities. This task can be challenging due to both the cross-modality variations caused by…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Jian-Wu Lin , Hao Li

Person re-identification is a challenging task mainly due to factors such as background clutter, pose, illumination and camera point of view variations. These elements hinder the process of extracting robust and discriminative…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Mahdi M. Kalayeh , Emrah Basaran , Muhittin Gokmen , Mustafa E. Kamasak , Mubarak Shah

Visible-Infrared Person Re-Identification (VI-ReID) plays a crucial role in applications such as search and rescue, infrastructure protection, and nighttime surveillance. However, it faces significant challenges due to modality…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Yuheng Jia , Wesley Armour

In recent years, face super-resolution (FSR) methods have achieved remarkable progress, generally maintaining high image fidelity and identity (ID) consistency under standard settings. However, in extreme degradation scenarios (e.g., scale…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Jiarui Yang , Hang Guo , Wen Huang , Tao Dai , Shutao Xia

Face morphing attacks represent a significant threat to biometric systems as they allow multiple identities to be combined into a single face. While supervised morphing attack detection (MAD) methods have shown promising performance, their…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Diogo J. Paulo , Hugo Proença , João C. Neves

Few-shot visual recognition refers to recognize novel visual concepts from a few labeled instances. Many few-shot visual recognition methods adopt the metric-based meta-learning paradigm by comparing the query representation with class…

Computer Vision and Pattern Recognition · Computer Science 2022-09-08 Mengya Han , Yibing Zhan , Yong Luo , Bo Du , Han Hu , Yonggang Wen , Dacheng Tao

The cross-resolution person re-identification (CRReID) problem aims to match low-resolution (LR) query identity images against high resolution (HR) gallery images. It is a challenging and practical problem since the query images often…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Lin Wu , Lingqiao Liu , Yang Wang , Zheng Zhang , Farid Boussaid , Mohammed Bennamoun

With the development of earth observation technology, massive amounts of remote sensing (RS) images are acquired. To find useful information from these images, cross-modal RS image-voice retrieval provides a new insight. This paper aims to…

Multimedia · Computer Science 2022-01-05 Hailong Ning , Bin Zhao , Yuan Yuan

Deformable shape representations, parameterized by deformations relative to a given template, have proven effective for improved image analysis tasks. However, their broader applicability is hindered by two major challenges. First, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Tonmoy Hossain , Miaomiao Zhang

Face recognition in the infrared (IR) band has become an important supplement to visible light face recognition due to its advantages of independent background light, strong penetration, ability of imaging under harsh environments such as…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Zhicheng Cao , Jiaxuan Zhang , Liaojun Pang

Face restoration is an inherently ill-posed problem, where additional prior constraints are typically considered crucial for mitigating such pathology. However, real-world image prior are often hard to simulate with precise mathematical…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Lingbo Yang , Pan Wang , Zhanning Gao , Shanshe Wang , Peiran Ren , Siwei Ma , Wen Gao