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Human Motion Recognition Based on Wi-Fi Imaging

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Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 2021)

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Abstract

The current wireless sensing technology has some problems, such as low resolution caused by narrow signal bandwidth, poor environmental adaptability caused by multipath effect and so on. To solve the above problems, this paper provides a new perception idea, Wi-Fi imaging human actions, and then using image processing method for action recognition. In the Wi-Fi imaging part, according to the different spatial angles of different parts of the body trunk such as head, chest and legs relative to the receiving end, this paper processes the human body reflection signal received by the receiving end, obtains the signal strength corresponding to each azimuth signal in the space, and generates the human body heat map. In the stage of action recognition, firstly, the background interference is removed. According to the characteristics of imaging and action in this paper, a continuous action segmentation method is proposed. The image action features are obtained through intensive sampling. Finally, the SVM is optimized by genetic algorithm to improve the accuracy of action classification under different conditions. Through the analysis of experimental results, the method proposed in this paper can produce high-precision imaging of human body under practical application conditions. The recognition accuracy of different actions in the experiment is more than 90%.

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Acknowledgment

This work was supported by NSFC 62072367, 61772413, 61802299, 62002284, and Natural Science Foundation of Shaanxi Province 2021JM-025.

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Authors and Affiliations

  1. School of Computer Science and Technology, Department of Telecommunications, Xi’an Jiatong University, Xi’an, 710004, People’s Republic of China

    Liangliang Lin, Kun Zhao, Xiaoyu Ma, Wei Xi, Chen Yang, Hui He & Jizhong Zhao

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  1. Liangliang Lin
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  2. Kun Zhao
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  3. Xiaoyu Ma
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  4. Wei Xi
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  5. Chen Yang
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  7. Jizhong Zhao
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Editors and Affiliations

  1. Shanghai University, Shanghai, China

    Honghao Gao

  2. Xi’an Jiaotong-Liverpool University, Suzhou, China

    Xinheng Wang

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© 2021 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Lin, L. et al. (2021). Human Motion Recognition Based on Wi-Fi Imaging. In: Gao, H., Wang, X. (eds) Collaborative Computing: Networking, Applications and Worksharing. CollaborateCom 2021. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 406. Springer, Cham. https://doi.org/10.1007/978-3-030-92635-9_35

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  • DOI: https://doi.org/10.1007/978-3-030-92635-9_35

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  • Online ISBN: 978-3-030-92635-9

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