Fast Determination of the Planar Body Segment Inertial Parameters Using Affordable Sensors
Fast Determination of the Planar Body Segment Inertial Parameters Using Affordable Sensors
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DOI：
10.1109/tnsre.2015.2405087
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发表时间：
2015-07-01
影响因子：
4.9
通讯作者：
Venture, Gentiane
中科院分区：
文献类型：
--
作者：
Bonnet, Vincent;Venture, Gentiane
本研究的目的是开发和评估一种新的方法，快速和可靠的识别体段惯性参数的平面模型，使用负担得起的传感器。一个Kinect传感器，一个新的基于标记的跟踪系统，和一个Wii平衡板被用作一个负担得起的便携式动作捕捉系统。在生物反馈接口中使用一组最佳激励运动来识别身体节段参数。该方法进行了验证与12名受试者进行各种标准化的运动。相同的测力量估计与建议的系统，并作为参考，与实验室级的力板进行了比较。结果表明，该方法能够成功地估算出合力矩和竖向地面反力（均方根误差分别小于8 Nm和12 N）。最后，当局部段值被人为改变时，所提出的方法能够准确地检测和估计额外的质量，误差小于0.5公斤，与常用的人体测量表生成的值相反。
This study aimed at developing and evaluating a new method for the fast and reliable identification of body segment inertial parameters with a planar model using affordable sensors. A Kinect sensor, with a new marker-based tracking system, and a Wii balance board were used as an affordable and portable motion capture system. A set of optimal exciting motions was used in a biofeedback interface to identify the body segment parameters. The method was validated with 12 subjects performing various standardized motions. The same dynamometric quantities estimated both with the proposed system and, as a reference, with a laboratory grade force-plate were compared. The results showed that the proposed method could successfully estimate the resultant moment and the vertical ground reaction force (rms errors less than 8 Nm and 12 N, respectively). Finally, when local segment values were artificially varied, the proposed method was able to detect and estimate the additional masses accurately and with an error of less than 0.5 Kg, contrary to values generated with commonly used anthropometric tables.