Journal of Shanghai Jiao Tong University ›› 2025, Vol. 59 ›› Issue (12): 1878-1890.doi: 10.16183/j.cnki.jsjtu.2023.635

• Electronic Information and Electrical Engineering • Previous Articles     Next Articles

Unsupervised Domain Adaptation for Cross-Regional Scenes Person Re-Identification

MAO Yanmei1,2, LI Huafeng1,2(), ZHANG Yafei1,2   

  1. 1 Faculty of Information Engineering and Automation
    2 Key Laboratory of Artificial Intelligence in Yunnan Province, Kunming University of Science and Technology, Kunming 650500, China
  • Received:2023-12-19 Revised:2024-01-31 Accepted:2024-03-25 Online:2025-12-28 Published:2025-12-30
  • Contact: LI Huafeng E-mail:hfchina99@163.com

Abstract:

In large-scale surveillance systems, the lack of positive cross-camera pedestrian samples in cross-regional scenes limits the performance of person re-identification (Re-ID) models. To tackle this challenge, an unsupervised domain adaptive person re-identification method incorporating multi-granularity feature mining and domain-invariant feature learning is proposed. The method consists of a multi-granularity feature learning module and a domain distribution alignment module. Within the multi-granularity feature learning module, global discriminant features of pedestrians are extracted through global features learning. To further enhance the discriminative capability of pedestrian features, a local consistency feature learning module is proposed to strengthen the interactions among local features. By jointly learning global and local features, the network is encouraged to extract multi-granularity discriminative features, thereby improving the performance of the person re-identification model. Additionally, a domain distribution alignment module is incorporated, leveraging style transfer to generate positive samples with diverse styles across cameras for target domain. This not only addresses the issue of the lack of positive samples across cameras in cross-regional scenes but also enhances the domain adaptation capabilities of the model. Extensive experiments conducted on the Market-1501, DukeMTMC, CUHK03, and MSMT17 datasets demonstrate the effectiveness of the proposed method compared to state-of-the-art person re-identification methods.

Key words: person re-identification (Re-ID), domain adaptation, multi-granularity feature mining, domain distribution alignment

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