Dietlmeier, Julia ORCID: 0000-0001-9980-0910, Hu, Feiyan ORCID: 0000-0001-7451-6438, Ryan, Frances, O'Connor, Noel E. ORCID: 0000-0002-4033-9135 and McGuinness, Kevin ORCID: 0000-0003-1336-6477 (2022) Improving person re-identification with temporal constraints. In: Real Word Surveillance workshop at WACV2022, 8 Jan 2022, Waikoloa, Hawaii.
Abstract
In this paper we introduce an image-based person re-identification dataset collected across five non-overlapping camera views in the large and busy airport in Dublin, Ireland. Unlike all publicly available image-based datasets, our dataset contains timestamp information in addition to frame number, and camera and person IDs. Also our dataset has been fully anonymized to comply with modern data privacy regulations. We apply state-of-the-art person re-identification models to our dataset and show that by leveraging the available timestamp information we are able to achieve a significant gain of 37.43% in mAP and a gain of 30.22% in Rank1 accuracy. We also propose a Bayesian temporal re-ranking post-processing step, which further adds a 10.03% gain in mAP and 9.95% gain in Rank1 accuracy metrics. This work on combining visual and temporal information is not possible on other image-based person re-identification datasets. We believe that the proposed new dataset will enable further development of person re-identification research for challenging real-world applications.
Metadata
Item Type: | Conference or Workshop Item (Paper) |
---|---|
Event Type: | Workshop |
Refereed: | Yes |
Uncontrolled Keywords: | Person Re-Identification; Time stamps; Time constraints; Bayersian probability; Temporal prior |
Subjects: | Computer Science > Artificial intelligence Computer Science > Image processing Computer Science > Information retrieval Computer Science > Machine learning Computer Science > Multimedia systems Computer Science > Digital video |
DCU Faculties and Centres: | DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering Research Institutes and Centres > INSIGHT Centre for Data Analytics |
Published in: | Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) Workshops, 2022. . Computer Vision Foundation (CVF). |
Publisher: | Computer Vision Foundation (CVF) |
Official URL: | https://openaccess.thecvf.com/content/WACV2022W/RW... |
Copyright Information: | © 2021 The Authors. Open Access |
Funders: | Science Foundation Ireland (SFI) under grant numbers SFI/20/COV/8579 SFI/12/RC/2289 2, co-funded by the European Regional Development Fund. |
ID Code: | 26473 |
Deposited On: | 06 Jan 2022 17:10 by Feiyan Hu . Last Modified 01 Mar 2022 13:26 |
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