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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2401.00080 |
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| _version_ | 1866914009190498304 |
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| author | Freire-Obregón, David Lorenzo-Navarro, Javier Santana, Oliverio J. Hernández-Sosa, Daniel Castrillón-Santana, Modesto |
| author_facet | Freire-Obregón, David Lorenzo-Navarro, Javier Santana, Oliverio J. Hernández-Sosa, Daniel Castrillón-Santana, Modesto |
| contents | Re-identifying participants in ultra-distance running competitions can be daunting due to the extensive distances and constantly changing terrain. To overcome these challenges, computer vision techniques have been developed to analyze runners' faces, numbers on their bibs, and clothing. However, our study presents a novel gait-based approach for runners' re-identification (re-ID) by leveraging various pre-trained human action recognition (HAR) models and loss functions. Our results show that this approach provides promising results for re-identifying runners in ultra-distance competitions. Furthermore, we investigate the significance of distinct human body movements when athletes are approaching their endurance limits and their potential impact on re-ID accuracy. Our study examines how the recognition of a runner's gait is affected by a competition's critical point (CP), defined as a moment of severe fatigue and the point where the finish line comes into view, just a few kilometers away from this location. We aim to determine how this CP can improve the accuracy of athlete re-ID. Our experimental results demonstrate that gait recognition can be significantly enhanced (up to a 9% increase in mAP) as athletes approach this point. This highlights the potential of utilizing gait recognition in real-world scenarios, such as ultra-distance competitions or long-duration surveillance tasks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_00080 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A Large-Scale Re-identification Analysis in Sporting Scenarios: the Betrayal of Reaching a Critical Point Freire-Obregón, David Lorenzo-Navarro, Javier Santana, Oliverio J. Hernández-Sosa, Daniel Castrillón-Santana, Modesto Computer Vision and Pattern Recognition Re-identifying participants in ultra-distance running competitions can be daunting due to the extensive distances and constantly changing terrain. To overcome these challenges, computer vision techniques have been developed to analyze runners' faces, numbers on their bibs, and clothing. However, our study presents a novel gait-based approach for runners' re-identification (re-ID) by leveraging various pre-trained human action recognition (HAR) models and loss functions. Our results show that this approach provides promising results for re-identifying runners in ultra-distance competitions. Furthermore, we investigate the significance of distinct human body movements when athletes are approaching their endurance limits and their potential impact on re-ID accuracy. Our study examines how the recognition of a runner's gait is affected by a competition's critical point (CP), defined as a moment of severe fatigue and the point where the finish line comes into view, just a few kilometers away from this location. We aim to determine how this CP can improve the accuracy of athlete re-ID. Our experimental results demonstrate that gait recognition can be significantly enhanced (up to a 9% increase in mAP) as athletes approach this point. This highlights the potential of utilizing gait recognition in real-world scenarios, such as ultra-distance competitions or long-duration surveillance tasks. |
| title | A Large-Scale Re-identification Analysis in Sporting Scenarios: the Betrayal of Reaching a Critical Point |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2401.00080 |