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首页> 外文期刊>Science, Measurement & Technology, IET >Design, development and evaluation of optical motion-tracking system based on active white light markers
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Design, development and evaluation of optical motion-tracking system based on active white light markers

机译：基于有源白光标记的光学运动跟踪系统的设计，开发和评估

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摘要

The precise measurement and analysis of human movements is an essential step in biomechanical research used in sports or medicine. Measurement systems used for motion tracking should be non-invasive, safe to use, widely customisable and cost-efficient. In this study, complete design, development and evaluation of a high-speed optical motion tracking and analysis system is described. The system aims to analyse movements for sports and medical applications. The novelty of the proposed system is its design, which is based on visible light light-emitting diode (LED) markers, rather than infrared markers that are commonly used, and a pair of high-speed digital cameras. Calibration procedures and a super-resolution marker model are introduced, ensuring sub-pixel marker centre detection which results in higher three-dimensional reconstruction accuracy. Evaluation of the system included an accuracy test of the proposed system on static and moving objects with known dimensions, followed by analysis of kinematic data obtained in dynamic conditions while measuring human gait. The evaluation results are presented, and conclusions about system performance with possible improvements are discussed.
机译：人体运动的精确测量和分析是用于运动或医学的生物力学研究的重要步骤。用于运动跟踪的测量系统应该是非侵入性的，使用安全，可广泛定制且具有成本效益。在这项研究中，描述了高速光学运动跟踪和分析系统的完整设计，开发和评估。该系统旨在分析运动和医疗应用中的运动。提出的系统的新颖之处在于其设计，它基于可见光发光二极管（LED）标记（而不是常用的红外标记）和一对高速数码相机。引入了校准程序和超分辨率标记模型，可确保亚像素标记中心检测，从而实现更高的三维重建精度。对系统的评估包括对拟议系统的已知尺寸的静态和运动物体进行精度测试，然后分析在动态条件下获得的运动学数据，同时测量人体步态。给出了评估结果，并讨论了有关系统性能的结论以及可能的改进。

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  • 来源
    《Science, Measurement & Technology, IET》 |2013年第4期|1-1|共1页
  • 作者

    Stancic; I.; Supuk; T.G.; Panjkota; A.;

  • 作者单位

    Laboratory for Biomechanics and Automatic Control Systems, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Croatia|c|;

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