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Title: Wearable sensors for 3D upper limb motion modeling and ubiquitous estimation
Authors: Zhang, Z.
Wong, W.C. 
Wu, J.
Keywords: Forward kinematic equation
Ubiquitous motion modeling and estimation
Wearable microsensors
Issue Date: Feb-2011
Citation: Zhang, Z.,Wong, W.C.,Wu, J. (2011-02). Wearable sensors for 3D upper limb motion modeling and ubiquitous estimation. Journal of Control Theory and Applications 9 (1) : 10-17. ScholarBank@NUS Repository.
Abstract: Human motion capture technologies are widely used in interactive game and learning, animation, film special effects, health care, and navigation. Because of the agility, upper limb motion estimation is the most difficult problem in human motion capture. Traditional methods always assume that the movements of upper arm and forearm are independent and then estimate their movements separately; therefore, the estimated motion are always with serious distortion. In this paper, we propose a novel ubiquitous upper limb motion estimation method using wearable microsensors, which concentrates on modeling the relationship of the movements between upper arm and forearm. Exploration of the skeleton structure as a link structure with 5 degrees of freedom is firstly proposed to model human upper limb motion. After that, parameters are defined according to Denavit-Hartenberg convention, forward kinematic equations of upper limb are derived, and an unscented Kalman filter is invoked to estimate the defined parameters. The experimental results have shown the feasibility and effectiveness of the proposed upper limb motion capture and analysis algorithm. © 2011 South China University of Technology, Academy of Mathematics and Systems Science, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.
Source Title: Journal of Control Theory and Applications
ISSN: 16726340
DOI: 10.1007/s11768-011-0234-9
Appears in Collections:Staff Publications

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