Yung-Ji Sher1,3, Yeou-Jiunn Chen4, Yu-Hsien Chiu5 Kao-Chi Chung1 and Chung-Hsien Wu2
1Institute of Biomedical Engineering
2Department of Computer Science and Information Engineering
National Cheng Kung University
Tainan, 701 Taiwan
3Department of Physical Therapy
Shu Zen College of Medicine and Management
Kaohsiung, 821 Taiwan
4Department of Electrical Engineering
Southern Taiwan University of Technology
Tainan, 710 Taiwan
5Computer and Communications Research Laboratories
Industrial Technology Research Institute
Hsinchu, 310 Taiwan