Person Re-Identification

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Overview

Person re-identification (ReID) studies how to retrieve the same person across images or video from different cameras, even when viewpoint, lighting, pose, or clothing changes. Common approaches learn discriminative embeddings with metric learning and transformers, then add local body-part or attribute cues, temporal information, and vision-language supervision; cross-modal methods align visible and infrared, text and image, or aerial and ground data. Evaluation spans benchmarks such as Market-1501 and MSMT17 as well as specialized settings for occlusion, clothing changes, video, and visible-infrared matching. A central challenge is building representations that generalize to unseen cameras and domains without relying on unstable appearance cues, while preserving useful identity information and addressing privacy and label constraints.

Latest papers

CardsList

92 papers12 papers in the last four weeks, up 71% on the four weeks before. 0.1% of all new papers.

  1. InterPartAbility: Phrase-Region Grounding for Interpretable Text-to-Image Person Re-Identification

    Apr 29, 2026Shakeeb Murtaza, Aryan Shukla, Rajarshi Bhattacharya +2VLM InterpretabilityVision-Language Grounding

    LIVIA, Dept. of Systems Engineering, ETS Montreal, Canada · Genetec Inc.

  2. 3D-LENS: A 3D Lifting-based Elevated Novel-view Synthesis method for Single-View Aerial-Ground Re-Identification

    Apr 29, 2026William Grolleau, Astrid Sabourin, Guillaume Lapouge +1Novel View SynthesisPerson Re-Identification

    Université Paris-Saclay, CEA, List, F-91120 Palaiseau, France · Sorbonne University, CNRS, Institute of Intelligent Systems and Robotics (ISIR), 4 Place Jussieu, 75005 Paris, France

  3. CO-EVO: Co-evolving Semantic Anchoring and Style Diversification for Federated DG-ReID

    Apr 29, 2026Fengchun Zhang, Qiang Ma, Liuyu Xiang +3Cross-Domain GeneralizationFederated Domain Generalization

    School of Information and Software Engineering, University of Electronic Science and Technology of China · 2QiYuan Lab · School of Artificial Intelligence, Beijing University of Posts and Telecommunications +1

  4. From Global to Local: Rethinking CLIP Feature Aggregation for Person Re-Identification

    Apr 24, 2026Aotian Zheng, Winston Sun, Bahaa Alattar +2VLM RobustnessPerson Re-Identification

    Department of Electrical and Computer Engineering, University of Washington, Seattle, WA 98195 · Applied Physics Laboratory, University of Washington, Seattle, WA 98195

  5. Temporal Prototyping and Hierarchical Alignment for Unsupervised Video-based Visible-Infrared Person Re-Identification

    Apr 23, 2026Zhiyong Li, Wei Jiang, Haojie Liu +3Prototype LearningVideo Representation Learning

    College of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China · School of Computer Science and Technology, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, China

  6. Thinking Before Matching: A Reinforcement Reasoning Paradigm Towards General Person Re-Identification

    Apr 21, 2026Quan Zhang, Jingze Wu, Jialong Wang +3Person Re-Identification

    Sun Yat-sen University · Alibaba Cloud Computing

  7. Causal Bootstrapped Alignment for Unsupervised Video-Based Visible-Infrared Person Re-Identification

    Apr 17, 2026Shuang Li, Jiaxu Leng, Changjiang Kuang +3Cross-Modal AlignmentUnsupervised Representation Learning

    School of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing, China

  8. Beyond Visual Cues: Semantic-Driven Token Filtering and Expert Routing for Anytime Person ReID

    Apr 16, 2026Jiaxuan Li, Xin Wen, Zhihang LiCross-Modal Feature MatchingPerson Re-Identification

    Tsinghua University · Independent Researcher · University of Chinese Academy of Sciences

  9. ARGOS: Who, Where, and When in Agentic Multi-Camera Person Search

    Apr 14, 2026Myungchul Kim, Kwanyong Park, Junmo Kim +1Agent BenchmarksSpatial Reasoning Benchmarks

    Korea Advanced Institute of Science and Technology (KAIST), Republic of Korea · University of Seoul, Republic of Korea · Korea Institute of Science and Technology (KIST), Republic of Korea

  10. Harnessing Weak Pair Uncertainty for Text-based Person Search

    Apr 10, 2026Jintao Sun, Zhedong Zheng, Gangyi DingText-Based Person SearchImage-Text Retrieval

    School of Computer Science and Technology, Beijing Institute of Technology, China · Faculty of Science and Technology, University of Macau, China

  11. Beyond Pedestrians: Caption-Guided CLIP Framework for High-Difficulty Video-based Person Re-Identification

    Apr 9, 2026Shogo Hamano, Shunya Wakasugi, Tatsuhito Sato +1Person Re-IdentificationCross-Modal Representation Learning

    Sony Group Corporation

  12. Pretrain-then-Adapt: Uncertainty-Aware Test-Time Adaptation for Text-based Person Search

    Apr 7, 2026Jiahao Zhang, Shaofei Huang, Yaxiong Wang +1Text-Based Person SearchTest-Time Adaptation

    University of Macau, Macau, China · Hefei University of Technology, Hefei, China

  13. Scale-Aware Vision-Language Adaptation for Extreme Far-Distance Video Person Re-identification

    Apr 5, 2026Ashwat Rajbhandari, Bharatesh ChakravarthiPerson Re-IdentificationVLM Adaptation

    Arizona State University

  14. CMCC-ReID: Cross-Modality Clothing-Change Person Re-Identification

    Apr 3, 2026Haoxuan Xu, Hanzi Wang, Guanglin NiuVisible-Infrared Person Re-IdentificationPerson Re-Identification

    School of Artificial Intelligence, Beihang University, Beijing, China · School of Informatics, Xiamen University, Xiamen, Fujian, China

  15. Attack Assessment and Augmented Identity Recognition for Human Skeleton Data

    Mar 25, 2026Joseph G. Zalameda, Megan A. Witherow, Alexander M. Glandon +2Adversarial RobustnessAdversarial Training

    Dept. of ECE, Old Dominion University, Norfolk, VA, USA · Dept. of Computer Science, Amherst College, Hampshire County, MA, USA

  16. ALADIN:Attribute-Language Distillation Network for Person Re-Identification

    Mar 23, 2026Wang Zhou, Boran Duan, Haojun Ai +2Person Re-IdentificationCross-Modal Knowledge Distillation

    Wuhan University No.299 Bayi Road, 430072, PR China

  17. Cross-modal Fuzzy Alignment Network for Text-Aerial Person Retrieval and A Large-scale Benchmark

    Mar 21, 2026Yifei Deng, Chenglong Li, Yuyang Zhang +2Image-Text RetrievalCross-Modal Alignment

    State Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology · School of Computer Science and Technology, Anhui University · The University of Hong Kong +1

  18. Vision-Language Attribute Disentanglement and Reinforcement for Lifelong Person Re-Identification

    Mar 20, 2026Kunlun Xu, Haotong Cheng, Jiangmeng Li +2Person Re-IdentificationContinual Learning for VLMs

    Wangxuan Institute of Computer Technology, Peking University, Beijing, China · University of Chinese Academy of Sciences, Beijing, China · School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, China

  19. Homogeneous and Heterogeneous Consistency progressive Re-ranking for Visible-Infrared Person Re-identification

    Mar 17, 2026Yiming WangVisible-Infrared Person Re-IdentificationPerson Re-Identification

  20. BIT: Matching-based Bi-directional Interaction Transformation Network for Visible-Infrared Person Re-Identification

    Mar 15, 2026Haoxuan Xu, Guanglin NiuVisible-Infrared Person Re-IdentificationPerson Re-Identification

    School of Artificial Intelligence, Beihang University

  21. Multi-Grained Vision-Language Alignment for Domain Generalized Person Re-Identification

    Mar 14, 2026Jiachen Li, Xiaojin Gong, Dongping ZhangPerson Re-IdentificationVision-Language Alignment

    College of Information Science and Electronic Engineering, Zhejiang University · College of Information Engineering, China Jiliang University

  22. FedBPrompt: Federated Domain Generalization Person Re-Identification via Body Distribution Aware Visual Prompts

    Mar 13, 2026Xin Xu, Weilong Li, Wei Liu +5Federated Domain GeneralizationPerson Re-Identification

    School of Computer Science and Technology, Wuhan University of Science and Technology, China · Nanyang Technological University, Singapore · NERC for Multimedia Software, School of Computer Science, Wuhan University, China +3

  23. FedARKS: Federated Aggregation via Robust and Discriminative Knowledge Selection and Integration for Person Re-identification

    Mar 6, 2026Xin Xu, Binchang Ma, Zhixi Yu +1Federated Domain GeneralizationPerson Re-Identification

    School of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan 430065 China

  24. MSP-ReID: Hairstyle-Robust Cloth-Changing Person Re-Identification

    Mar 2, 2026Xiangyang He, Lin WanPerson Re-IdentificationData Augmentation

    School of Computer Science, China University of Geosciences, Wuhan, China

  25. From Calibration to Refinement: Seeking Certainty via Probabilistic Evidence Propagation for Noisy-Label Person Re-Identification

    Feb 26, 2026Xin Yuan, Zhiyong Zhang, Xin Xu +2Person Re-IdentificationLearning with Noisy Labels

    School of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan, Hubei 430065, China · Hubei Province Key Laboratory of Intelligent Information Processing and Real-Time Industrial System, Wuhan University of Science and Technology, Wuhan 430065, China · School of Computer Science, Wuhan University, Wuhan, Hubei 430072, China +1

  26. IDSelect: A RL-Based Cost-Aware Selection Agent for Video-based Multi-Modal Person Recognition

    Feb 22, 2026Yuyang Ji, Yixuan Shen, Kien Nguyen +2Efficient Multimodal InferenceModel Selection

    Department of Computer Science, Drexel University · School of Electrical Engineering and Robotics, Queensland University of Technology · Department of Electrical and Computer Engineerin, Drexel University

  27. CityGuard: Graph-Aware Private Descriptors for Bias-Resilient Identity Search Across Urban Cameras

    Feb 20, 2026Rong Fu, Yibo Meng, Rui Lu +2Person Re-IdentificationMetric Learning

    Independent Researcher

  28. ReText: Text Boosts Generalization in Image-Based Person Re-identification

    Feb 5, 2026Timur Mamedov, Karina Kvanchiani, Anton Konushin +1Person Re-Identification

    Tevian, Moscow, Russia · Lomonosov Moscow State University

  29. Learning Language-Driven Sequence-Level Modal-Invariant Representations for Video-Based Visible-Infrared Person Re-Identification

    Jan 17, 2026Xiaomei Yang, Antai Liu, Xizhan Gao +3Invariant Representation LearningVisible-Infrared Person Re-Identification

    Shandong Key Laboratory of Ubiquitous Intelligent Computing, School of Information Science and Engineering, University of Jinan, Jinan 250022, China · College of Information Science and Technology & Artificial Intelligence, Nanjing Forestry University, Nanjing 210037, China · Department of Informatics, Modeling, Electronics, and Systems, University of Calabria, Via P. Bucci, cubo 41C, 87036, Rende (CS), Italy

  30. Leveraging Prior Knowledge of Diffusion Model for Person Search

    Oct 2, 2025Giyeol Kim, Sooyoung Yang, Jihyong Oh +2Object DetectionPerson Re-Identification

    GSAIM, Chung-Ang University · IPAI, Seoul National University · Department of Mathematical Sciences and RIMS, Seoul National University