Acta Photonica Sinica, Volume. 52, Issue 11, 1111003(2023)

Calibration Method for Optical Motion Capture System in Large Scene

Haolong LUO1...2, Jiansheng LI1, Danping ZOU2, Zidi YANG1 and Guangyun LI1,* |Show fewer author(s)
Author Affiliations
  • 1School of Geospatial Information,Strategic Support Force Information Engineering University,Zhengzhou 450001,China
  • 2Shanghai Key Laboratory of Navigation and Location-based Services,Shanghai Jiao Tong University,Shanghai 200240,China
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    Figures & Tables(21)
    Coordinate system correspondence
    Three-dimensional spatial positioning principle based on binocular stereo vision
    Calibration principle of optical motion capture system
    Measuring principle of total station
    Device for measuring common points
    Common point layout scheme
    Principle of measuring common points
    Spatial distribution of Vicon system and NOKOV system
    Vicon system test field
    Vertical view of vicon system
    Process of TCP calibration
    Vicon positioning accuracy in the first area
    Vicon positioning accuracy in the second area
    Vicon positioning accuracy in the third area
    Vicon positioning accuracy in the fourth area
    Vicon positioning accuracy in the whole area
    Camera distribution of NOKOV system
    External parameter calibration experiment between Vicon system and NOKOV system
    • Table 1. Vicon system camera configuration

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      Table 1. Vicon system camera configuration

      Lens configurationIndicator parameters
      Lens modelVantage 5
      Pixel resolution5 MP
      Sampling frequency420 HZ
      Field of view(H×V63.5°×35.1°
      Camera delay5.5 ms
      Number of lenses34
      Lens weight1.6 kg
    • Table 2. Technical parameters of total station

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      Table 2. Technical parameters of total station

      Total station MS60Indicator parameters
      Goniometric accuracy0.5″
      Measuring range1.5 m~10 000 m
      Measurement accuracy1 mm+1.5 mm
      Automatic illuminationYes
      Maximum scanning speed30 000/s
      Scanning accuracy0.6 mm@50 m
      Temperature range-20 50 
    • Table 3. Target position

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      Table 3. Target position

      RegionRMSE
      X-axis/mmY-axis/mmZ-axis/mmPoint coordinates/mm
      Region 11.4291.6390.9792.385
      Region 20.4880.5210.5090.877
      Region 30.7391.2791.0071.787
      Region 41.192 12.1141.5682.890
      Overall region1.3937.6062.4968.126
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    Haolong LUO, Jiansheng LI, Danping ZOU, Zidi YANG, Guangyun LI. Calibration Method for Optical Motion Capture System in Large Scene[J]. Acta Photonica Sinica, 2023, 52(11): 1111003

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    Paper Information

    Category:

    Received: May. 7, 2023

    Accepted: Jun. 25, 2023

    Published Online: Dec. 22, 2023

    The Author Email: LI Guangyun (guangyun_li_chxy@163.com)

    DOI:10.3788/gzxb20235211.1111003

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