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Related papers: Unsupervised domain-adaptive person re-identificat…

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Unsupervised Domain Adaptation (UDA) methods for person Re-Identification (Re-ID) rely on target domain samples to model the marginal distribution of the data. To deal with the lack of target domain labels, UDA methods leverage information…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Tiago de C. G. Pereira , Teofilo E. de Campos

Person re-identification is the challenging task of identifying a person across different camera views. Training a convolutional neural network (CNN) for this task requires annotating a large dataset, and hence, it involves the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Olga Moskvyak , Frederic Maire , Feras Dayoub , Mahsa Baktashmotlagh

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 person re-identification (re-id) methods are stuck when deployed to a new unseen scenario despite the success in cross-camera person matching. Recent efforts have been substantially devoted to domain adaptive person re-id where…

Computer Vision and Pattern Recognition · Computer Science 2021-09-10 Lingxiao He , Wu Liu , Jian Liang , Kecheng Zheng , Xingyu Liao , Peng Cheng , Tao Mei

Unsupervised domain adaptation person re-identification (Re-ID) aims to identify pedestrian images within an unlabeled target domain with an auxiliary labeled source-domain dataset. Many existing works attempt to recover reliable identity…

Computer Vision and Pattern Recognition · Computer Science 2023-01-31 Qiong Wu , Jiahan Li , Pingyang Dai , Qixiang Ye , Liujuan Cao , Yongjian Wu , Rongrong Ji

Most existing person re-identification (re-id) methods rely on supervised model learning on per-camera-pair manually labelled pairwise training data. This leads to poor scalability in a practical re-id deployment, due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Minxian Li , Xiatian Zhu , Shaogang Gong

Unsupervised domain adaptation (UDA) methods for person re-identification (re-ID) aim at transferring re-ID knowledge from labeled source data to unlabeled target data. Although achieving great success, most of them only use limited data…

Computer Vision and Pattern Recognition · Computer Science 2021-04-28 Zechen Bai , Zhigang Wang , Jian Wang , Di Hu , Errui Ding

Existing person re-identification (re-ID) research mainly focuses on pedestrian identity matching across cameras in adjacent areas. However, in reality, it is inevitable to face the problem of pedestrian identity matching across…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Huafeng Li , Yanmei Mao , Yafei Zhang , Guanqiu Qi , Zhengtao Yu

In this work, we address the problem of unsupervised domain adaptation for person re-ID where annotations are available for the source domain but not for target. Previous methods typically follow a two-stage optimization pipeline, where the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Takashi Isobe , Dong Li , Lu Tian , Weihua Chen , Yi Shan , Shengjin Wang

Unsupervised person re-identification aims to retrieve images of a specified person without identity labels. Many recent unsupervised Re-ID approaches adopt clustering-based methods to measure cross-camera feature similarity to roughly…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Pengna Li , Kangyi Wu , Wenli Huang , Sanping Zhou , Jinjun Wang

Deep learning-based person Re-IDentification (ReID) often requires a large amount of training data to achieve good performance. Thus it appears that collecting more training data from diverse environments tends to improve the ReID…

Computer Vision and Pattern Recognition · Computer Science 2022-01-07 Lu Yang , Lingqiao Liu , Yunlong Wang , Peng Wang , Yanning Zhang

We study the problem of unsupervised domain adaptive re-identification (re-ID) which is an active topic in computer vision but lacks a theoretical foundation. We first extend existing unsupervised domain adaptive classification theories to…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Liangchen Song , Cheng Wang , Lefei Zhang , Bo Du , Qian Zhang , Chang Huang , Xinggang Wang

Unsupervised person re-ID is the task of identifying people on a target data set for which the ID labels are unavailable during training. In this paper, we propose to unify two trends in unsupervised person re-ID: clustering & fine-tuning…

Computer Vision and Pattern Recognition · Computer Science 2020-04-29 Guillaume Delorme , Yihong Xu , Stephane Lathuilière , Radu Horaud , Xavier Alameda-Pineda

Person re-identification (ReId), a crucial task in surveillance, involves matching individuals across different camera views. The advent of Deep Learning, especially supervised techniques like Convolutional Neural Networks and Attention…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Andrea Asperti , Salvatore Fiorilla , Simone Nardi , Lorenzo Orsini

Unsupervised domain adaptive person Re-IDentification (ReID) is challenging because of the large domain gap between source and target domains, as well as the lackage of labeled data on the target domain. This paper tackles this challenge…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Jianing Li , Shiliang Zhang

Unsupervised person re-identification (Re-ID) aims to retrieve person images across cameras without any identity labels. Most clustering-based methods roughly divide image features into clusters and neglect the feature distribution noise…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Pengna Li , Kangyi Wu , Sanping Zhou. Qianxin Huang , Jinjun Wang

Supervised person re-identification methods rely heavily on high-quality cross-camera training label. This significantly hinders the deployment of re-ID models in real-world applications. The unsupervised person re-ID methods can reduce the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-09 Hehan Teng , Tao He , Yuchen Guo , Guiguang Ding

Person re-identification (Re-ID) is a critical technique in the video surveillance system, which has achieved significant success in the supervised setting. However, it is difficult to directly apply the supervised model to arbitrary unseen…

Computer Vision and Pattern Recognition · Computer Science 2022-08-26 Lei Qi , Jiaying Shen , Jiaqi Liu , Yinghuan Shi , Xin Geng

Person re-identification (Re-ID) is one of the primary components of an automated visual surveillance system. It aims to automatically identify/search persons in a multi-camera network having non-overlapping field-of-views. Owing to its…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Asmat Zahra , Nazia Perwaiz , Muhammad Shahzad , Muhammad Moazam Fraz

Most person re-identification methods, being supervised techniques, suffer from the burden of massive annotation requirement. Unsupervised methods overcome this need for labeled data, but perform poorly compared to the supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-04-06 Xueping Wang , Sujoy Paul , Dripta S. Raychaudhuri , Min Liu , Yaonan Wang , Amit K. Roy-Chowdhury