Human Identification at a Distance: Challenges, Methods and Results on the Competition HID 2025

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Main Authors: Ma, Jingzhe, Zhang, Meng, Yu, Jianlong, Liu, Kun, Xu, Zunxiao, Cheng, Xue, Zhou, Junjie, Wang, Yanfei, Li, Jiahang, Wang, Zepeng, Osamura, Kazuki, Liu, Rujie, Abe, Narishige, Wang, Jingjie, Zhang, Shunli, Xie, Haojun, Wu, Jiajun, Wu, Weiming, Kang, Wenxiong, Gao, Qingshuo, Xiong, Jiaming, Ben, Xianye, Chen, Lei, Song, Lichen, Cui, Junjian, Xiong, Haijun, Lu, Junhao, Feng, Bin, Liu, Mengyuan, Zhou, Ji, Zhao, Baoquan, Xu, Ke, Huang, Yongzhen, Wang, Liang, Marin-Jimenez, Manuel J, Ahad, Md Atiqur Rahman, Yu, Shiqi
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Published: 2026
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author Ma, Jingzhe
Zhang, Meng
Yu, Jianlong
Liu, Kun
Xu, Zunxiao
Cheng, Xue
Zhou, Junjie
Wang, Yanfei
Li, Jiahang
Wang, Zepeng
Osamura, Kazuki
Liu, Rujie
Abe, Narishige
Wang, Jingjie
Zhang, Shunli
Xie, Haojun
Wu, Jiajun
Wu, Weiming
Kang, Wenxiong
Gao, Qingshuo
Xiong, Jiaming
Ben, Xianye
Chen, Lei
Song, Lichen
Cui, Junjian
Xiong, Haijun
Lu, Junhao
Feng, Bin
Liu, Mengyuan
Zhou, Ji
Zhao, Baoquan
Xu, Ke
Huang, Yongzhen
Wang, Liang
Marin-Jimenez, Manuel J
Ahad, Md Atiqur Rahman
Yu, Shiqi
author_facet Ma, Jingzhe
Zhang, Meng
Yu, Jianlong
Liu, Kun
Xu, Zunxiao
Cheng, Xue
Zhou, Junjie
Wang, Yanfei
Li, Jiahang
Wang, Zepeng
Osamura, Kazuki
Liu, Rujie
Abe, Narishige
Wang, Jingjie
Zhang, Shunli
Xie, Haojun
Wu, Jiajun
Wu, Weiming
Kang, Wenxiong
Gao, Qingshuo
Xiong, Jiaming
Ben, Xianye
Chen, Lei
Song, Lichen
Cui, Junjian
Xiong, Haijun
Lu, Junhao
Feng, Bin
Liu, Mengyuan
Zhou, Ji
Zhao, Baoquan
Xu, Ke
Huang, Yongzhen
Wang, Liang
Marin-Jimenez, Manuel J
Ahad, Md Atiqur Rahman
Yu, Shiqi
contents Human identification at a distance (HID) is challenging because traditional biometric modalities such as face and fingerprints are often difficult to acquire in real-world scenarios. Gait recognition provides a practical alternative, as it can be captured reliably at a distance. To promote progress in gait recognition and provide a fair evaluation platform, the International Competition on Human Identification at a Distance (HID) has been organized annually since 2020. Since 2023, the competition has adopted the challenging SUSTech-Competition dataset, which features substantial variations in clothing, carried objects, and view angles. No dedicated training data are provided, requiring participants to train their models using external datasets. Each year, the competition applies a different random seed to generate distinct evaluation splits, which reduces the risk of overfitting and supports a fair assessment of cross-domain generalization. While HID 2023 and HID 2024 already used this dataset, HID 2025 explicitly examined whether algorithmic advances could surpass the accuracy limits observed previously. Despite the heightened difficulty, participants achieved further improvements, and the best-performing method reached 94.2% accuracy, setting a new benchmark on this dataset. We also analyze key technical trends and outline potential directions for future research in gait recognition.
format Preprint
id arxiv_https___arxiv_org_abs_2602_07565
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Human Identification at a Distance: Challenges, Methods and Results on the Competition HID 2025
Ma, Jingzhe
Zhang, Meng
Yu, Jianlong
Liu, Kun
Xu, Zunxiao
Cheng, Xue
Zhou, Junjie
Wang, Yanfei
Li, Jiahang
Wang, Zepeng
Osamura, Kazuki
Liu, Rujie
Abe, Narishige
Wang, Jingjie
Zhang, Shunli
Xie, Haojun
Wu, Jiajun
Wu, Weiming
Kang, Wenxiong
Gao, Qingshuo
Xiong, Jiaming
Ben, Xianye
Chen, Lei
Song, Lichen
Cui, Junjian
Xiong, Haijun
Lu, Junhao
Feng, Bin
Liu, Mengyuan
Zhou, Ji
Zhao, Baoquan
Xu, Ke
Huang, Yongzhen
Wang, Liang
Marin-Jimenez, Manuel J
Ahad, Md Atiqur Rahman
Yu, Shiqi
Computer Vision and Pattern Recognition
Human identification at a distance (HID) is challenging because traditional biometric modalities such as face and fingerprints are often difficult to acquire in real-world scenarios. Gait recognition provides a practical alternative, as it can be captured reliably at a distance. To promote progress in gait recognition and provide a fair evaluation platform, the International Competition on Human Identification at a Distance (HID) has been organized annually since 2020. Since 2023, the competition has adopted the challenging SUSTech-Competition dataset, which features substantial variations in clothing, carried objects, and view angles. No dedicated training data are provided, requiring participants to train their models using external datasets. Each year, the competition applies a different random seed to generate distinct evaluation splits, which reduces the risk of overfitting and supports a fair assessment of cross-domain generalization. While HID 2023 and HID 2024 already used this dataset, HID 2025 explicitly examined whether algorithmic advances could surpass the accuracy limits observed previously. Despite the heightened difficulty, participants achieved further improvements, and the best-performing method reached 94.2% accuracy, setting a new benchmark on this dataset. We also analyze key technical trends and outline potential directions for future research in gait recognition.
title Human Identification at a Distance: Challenges, Methods and Results on the Competition HID 2025
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2602.07565