1. National Taipei University of Technology,Department of Electronic Engineering,Taipei,Taiwan (R.O.C)
2. Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology,Taipei,Taiwan (R.O.C)
3. Graduate Institute of Color and Illumination Technology, National Taiwan University of Science and Technology,Taipei,Taiwan (R.O.C)
4. Rehabilitation Medicine, Lo-Hsu Medical Foundation Lotung,Poh-Ai Hospital,Yilan,Taiwan (R.O.C)