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Main Authors: Shao, Yunzhe, Yi, Xinyu, Yin, Lu, Guo, Shihui, Yong, Junhai, Xu, Feng
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2506.22907
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author Shao, Yunzhe
Yi, Xinyu
Yin, Lu
Guo, Shihui
Yong, Junhai
Xu, Feng
author_facet Shao, Yunzhe
Yi, Xinyu
Yin, Lu
Guo, Shihui
Yong, Junhai
Xu, Feng
contents This paper proposes a novel method called MagShield, designed to address the issue of magnetic interference in sparse inertial motion capture (MoCap) systems. Existing Inertial Measurement Unit (IMU) systems are prone to orientation estimation errors in magnetically disturbed environments, limiting their practical application in real-world scenarios. To address this problem, MagShield employs a "detect-then-correct" strategy, first detecting magnetic disturbances through multi-IMU joint analysis, and then correcting orientation errors using human motion priors. MagShield can be integrated with most existing sparse inertial MoCap systems, improving their performance in magnetically disturbed environments. Experimental results demonstrate that MagShield significantly enhances the accuracy of motion capture under magnetic interference and exhibits good compatibility across different sparse inertial MoCap systems.
format Preprint
id arxiv_https___arxiv_org_abs_2506_22907
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle MagShield: Towards Better Robustness in Sparse Inertial Motion Capture Under Magnetic Disturbances
Shao, Yunzhe
Yi, Xinyu
Yin, Lu
Guo, Shihui
Yong, Junhai
Xu, Feng
Computer Vision and Pattern Recognition
Graphics
This paper proposes a novel method called MagShield, designed to address the issue of magnetic interference in sparse inertial motion capture (MoCap) systems. Existing Inertial Measurement Unit (IMU) systems are prone to orientation estimation errors in magnetically disturbed environments, limiting their practical application in real-world scenarios. To address this problem, MagShield employs a "detect-then-correct" strategy, first detecting magnetic disturbances through multi-IMU joint analysis, and then correcting orientation errors using human motion priors. MagShield can be integrated with most existing sparse inertial MoCap systems, improving their performance in magnetically disturbed environments. Experimental results demonstrate that MagShield significantly enhances the accuracy of motion capture under magnetic interference and exhibits good compatibility across different sparse inertial MoCap systems.
title MagShield: Towards Better Robustness in Sparse Inertial Motion Capture Under Magnetic Disturbances
topic Computer Vision and Pattern Recognition
Graphics
url https://arxiv.org/abs/2506.22907