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Regular unsupervised domain adaptive person re-identification (ReID) focuses on adapting a model from a source domain to a fixed target domain. However, an adapted ReID model can hardly retain previously-acquired knowledge and generalize to…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Hao Chen , Francois Bremond , Nicu Sebe , Shiliang Zhang

We empirically investigate the camera bias of person re-identification (ReID) models. Previously, camera-aware methods have been proposed to address this issue, but they are largely confined to training domains of the models. We measure the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Myungseo Song , Jin-Woo Park , Jong-Seok Lee

This study introduces a novel framework, "Comprehensive Optimization and Refinement through Ensemble Fusion in Domain Adaptation for Person Re-identification (CORE-ReID)", to address an Unsupervised Domain Adaptation (UDA) for Person…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Trinh Quoc Nguyen , Oky Dicky Ardiansyah Prima , Katsuyoshi Hotta

This paper considers the problem of unsupervised person re-identification (re-ID), which aims to learn discriminative models with unlabeled data. One popular method is to obtain pseudo-label by clustering and use them to optimize the model.…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Fengxiang Yang , Zhun Zhong , Zhiming Luo , Yuanzheng Cai , Yaojin Lin , Shaozi Li , Nicu Sebe

Person Re-Identification (ReID) aims to retrieve relevant individuals in non-overlapping camera images and has a wide range of applications in the field of public safety. In recent years, with the development of Vision Transformer (ViT) and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Bin Hu , Xinggang Wang , Wenyu Liu

We present an attention-based model that reasons on human body shape and motion dynamics to identify individuals in the absence of RGB information, hence in the dark. Our approach leverages unique 4D spatio-temporal signatures to address…

Computer Vision and Pattern Recognition · Computer Science 2016-11-23 Albert Haque , Alexandre Alahi , Li Fei-Fei

Our impression about one person often updates after we see more aspects of him/her and this process keeps iterating given more meetings. We formulate such an intuition into the problem of person re-identification (re-ID), where the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Dengpan Fu , Bo Xin , Jingdong Wang , Dongdong Chen , Jianmin Bao , Gang Hua , Houqiang Li

Pose variation is one of the key factors which prevents the network from learning a robust person re-identification (Re-ID) model. To address this issue, we propose a novel person pose-guided image generation method, which is called the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Meichen Liu , Kejun Wang , Juihang Ji , Shuzhi Sam Ge

Existing approaches for unsupervised metric learning focus on exploring self-supervision information within the input image itself. We observe that, when analyzing images, human eyes often compare images against each other instead of…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Yang Li , Shichao Kan , Zhihai He

This paper proposes Attribute Attention Network (AANet), a new architecture that integrates person attributes and attribute attention maps into a classification framework to solve the person re-identification (re-ID) problem. Many person…

Computer Vision and Pattern Recognition · Computer Science 2019-12-20 Chiat-Pin Tay , Sharmili Roy , Kim-Hui Yap

Video-based person re-identification matches video clips of people across non-overlapping cameras. Most existing methods tackle this problem by encoding each video frame in its entirety and computing an aggregate representation across all…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Shuang Li , Slawomir Bak , Peter Carr , Xiaogang Wang

Predictive uncertainty-a model's self awareness regarding its accuracy on an input-is key for both building robust models via training interventions and for test-time applications such as selective classification. We propose a novel…

Machine Learning · Computer Science 2024-01-04 Nishant Jain , Karthikeyan Shanmugam , Pradeep Shenoy

Person re-identification aims to match a person's identity across multiple camera streams. Deep neural networks have been successfully applied to the challenging person re-identification task. One remarkable bottleneck is that the existing…

Computer Vision and Pattern Recognition · Computer Science 2018-05-17 Guodong Ding , Shanshan Zhang , Salman Khan , Zhenmin Tang , Jian Zhang , Fatih Porikli

Vehicle re-identification (Re-ID) is an active task due to its importance in large-scale intelligent monitoring in smart cities. Despite the rapid progress in recent years, most existing methods handle vehicle Re-ID task in a supervised…

Computer Vision and Pattern Recognition · Computer Science 2020-11-19 Aihua Zheng , Xia Sun , Chenglong Li , Jin Tang

This paper presents a simple unsupervised visual representation learning method with a pretext task of discriminating all images in a dataset using a parametric, instance-level classifier. The overall framework is a replica of a supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-02-10 Yu Liu , Lianghua Huang , Pan Pan , Bin Wang , Yinghui Xu , Rong Jin

Person Re-identification (re-id) aims to match people across non-overlapping camera views in a public space. It is a challenging problem because many people captured in surveillance videos wear similar clothes. Consequently, the differences…

Computer Vision and Pattern Recognition · Computer Science 2017-09-18 Xuelin Qian , Yanwei Fu , Yu-Gang Jiang , Tao Xiang , Xiangyang Xue

Currently, most existing person re-identification methods use Instance-Level features, which are extracted only from a single image. However, these Instance-Level features can easily ignore the discriminative information due to the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Leqi Shen , Tao He , Yuchen Guo , Guiguang Ding

Unsupervised meta-learning aims to learn feature representations from unsupervised datasets that can transfer to downstream tasks with limited labeled data. In this paper, we propose a novel approach to unsupervised meta-learning that…

Machine Learning · Computer Science 2025-02-11 Anna Vettoruzzo , Lorenzo Braccaioli , Joaquin Vanschoren , Marlena Nowaczyk

Person re-identification (Re-ID) is the task of matching humans across cameras with non-overlapping views that has important applications in visual surveillance. Like other computer vision tasks, this task has gained much with the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Sergey Rodionov , Alexey Potapov , Hugo Latapie , Enzo Fenoglio , Maxim Peterson

Person re-identification (re-ID) aims to retrieve the same person across different cameras. In practice, it still remains a challenging task due to background clutter, variations on body poses and view conditions, inaccurate bounding box…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Honglong Cai , Yuedong Fang , Zhiguan Wang , Tingchun Yeh , Jinxing Cheng