期刊
INTERNATIONAL JOURNAL OF ROBOTICS RESEARCH
卷 26, 期 6, 页码 607-624出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0278364907079278
关键词
sensor fusion; extended Kalman filter; inertial sensor; human motion tracking; home-based rehabilitation
类别
The integration of visual and inertial sensors for human motion tracking has attracted significant attention recently, due to its robust performance and wide potential application. This paper introduces a real-time hybrid solution to articulated 3D arm motion tracking for home-based rehabilitation by combining visual and inertial sensors. Data fusion is a key issue in this hybrid system and two different data fusion methods tire proposed. The first is a deterministic method based on arm structure and geometry information, which is suitable,for simple rehabilitation motions. The second is, a probabilistic method based on all Extended Kalman Filter (EKF) in which data from two sensors is fused in a predict-correct manner ill order to deal with sensor noise and model inaccuracy Experimental results are presented and compared with commercial marker-based systems, CODA and Qualysis. They show good performance for the proposed solution.
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