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Person re-identification (Re-ID) technology plays an increasingly crucial role in intelligent surveillance systems. Widespread occlusion significantly impacts the performance of person Re-ID. Occluded person Re-ID refers to a pedestrian…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Enhao Ning , Changshuo Wang , Huang Zhangc , Xin Ning , Prayag Tiwari

Unsupervised person re-identification (re-ID) aims at closing the performance gap to supervised methods. These methods build reliable relationship between data points while learning representations. However, we empirically show that the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Xuanyu He , Wei Zhang , Ran Song , Qian Zhang , Xiangyuan Lan , Lin Ma

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) task seeks to enhance the tracking of multiple individuals by surveillance cameras. It supports multimodal tasks, including text-based person retrieval and human matching. One of the most significant…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Quoc-Huy Trinh , Nhat-Tan Bui , Dinh-Hieu Hoang , Phuoc-Thao Vo Thi , Hai-Dang Nguyen , Debesh Jha , Ulas Bagci , Ngan Le , Minh-Triet Tran

A framework for unsupervised group activity analysis from a single video is here presented. Our working hypothesis is that human actions lie on a union of low-dimensional subspaces, and thus can be efficiently modeled as sparse linear…

Computer Vision and Pattern Recognition · Computer Science 2012-08-28 Zhongwei Tang , Alexey Castrodad , Mariano Tepper , Guillermo Sapiro

Traditional patch-based sparse representation modeling of natural images usually suffer from two problems. First, it has to solve a large-scale optimization problem with high computational complexity in dictionary learning. Second, each…

Computer Vision and Pattern Recognition · Computer Science 2014-05-15 Jian Zhang , Debin Zhao , Wen Gao

The scalability problem caused by the difficulty in annotating Person Re-identification(Re-ID) datasets has become a crucial bottleneck in the development of Re-ID.To address this problem, many unsupervised Re-ID methods have recently been…

Computer Vision and Pattern Recognition · Computer Science 2019-11-01 Zhirui Chen , Jianheng Li , Wei-Shi Zheng

Person re-identification aims to maintain the identity of an individual in diverse locations through different non-overlapping camera views. The problem is fundamentally challenging due to appearance variations resulting from differing…

Computer Vision and Pattern Recognition · Computer Science 2014-10-27 Ziming Zhang , Yuting Chen , Venkatesh Saligrama

Person re-identification (re-id) remains challenging due to significant intra-class variations across different cameras. Recently, there has been a growing interest in using generative models to augment training data and enhance the…

Computer Vision and Pattern Recognition · Computer Science 2021-05-20 Zhedong Zheng , Xiaodong Yang , Zhiding Yu , Liang Zheng , Yi Yang , Jan Kautz

Although a significant progress has been witnessed in supervised person re-identification (re-id), it remains challenging to generalize re-id models to new domains due to the huge domain gaps. Recently, there has been a growing interest in…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Yang Zou , Xiaodong Yang , Zhiding Yu , B. V. K. Vijaya Kumar , Jan Kautz

Occluded person re-identification (Re-ID) is a challenging task as persons are frequently occluded by various obstacles or other persons, especially in the crowd scenario. To address these issues, we propose a novel end-to-end Part-Aware…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Yulin Li , Jianfeng He , Tianzhu Zhang , Xiang Liu , Yongdong Zhang , Feng Wu

Person re-identification (Re-ID) aims at retrieving an input person image from a set of images captured by multiple cameras. Although recent Re-ID methods have made great success, most of them extract features in terms of the attributes of…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Boqiang Xu , Lingxiao He , Xingyu Liao , Wu Liu , Zhenan Sun , Tao Mei

In video surveillance, person re-identification is the task of searching person images in non-overlapping cameras. Though supervised methods for person re-identification have attained impressive performance, obtaining large scale cross-view…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 T M Feroz Ali , Subhasis Chaudhuri

Unsupervised person re-identification (Re-ID) attracts increasing attention due to its potential to resolve the scalability problem of supervised Re-ID models. Most existing unsupervised methods adopt an iterative clustering mechanism,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Lianjie Jia , Chenyang Yu , Xiehao Ye , Tianyu Yan , Yinjie Lei , Pingping Zhang

Incremental learning for person re-identification (ReID) aims to develop models that can be trained with a continuous data stream, which is a more practical setting for real-world applications. However, the existing incremental ReID methods…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Zexian Yang , Dayan Wu , Wanqian Zhang , Bo Li , Weiping Wang

Person re-identification (Re-ID) aims to match person images across different camera views, with occluded Re-ID addressing scenarios where pedestrians are partially visible. While pre-trained vision-language models have shown effectiveness…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Rui Zhi , Zhen Yang , Haiyang Zhang

The challenge of unsupervised person re-identification (ReID) lies in learning discriminative features without true labels. This paper formulates unsupervised person ReID as a multi-label classification task to progressively seek true…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Dongkai Wang , Shiliang Zhang

A series of unsupervised video-based re-identification (re-ID) methods have been proposed to solve the problem of high labor cost required to annotate re-ID datasets. But their performance is still far lower than the supervised…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Hehan Teng , Tao He , Yuchen Guo , Zhenhua Guo , Guiguang Ding

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

Video-based person re-identification (Re-ID) aims to automatically retrieve video sequences of the same person under non-overlapping cameras. To achieve this goal, it is the key to fully utilize abundant spatial and temporal cues in videos.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Xuehu Liu , Pingping Zhang , Chenyang Yu , Huchuan Lu , Xiaoyun Yang