1. Department of Electronics Engineering and Institute of Electronics, National Yang Ming Chiao Tung University, Hsinchu 30010 Taiwan, and also with the Department of Computer Science and Information Engineering, Asia University, Taichung 41354 Taiwan.
2. Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu 30010 Taiwan, and with the Logitech, Inc., National Yang Ming Chiao Tung University, Hsinchu 30010 Taiwan.
3. Department of Computer Science and Information Engineering, Asia University, Taichung 41354 Taiwan, also with the Department of Medical Research and China Medical University Hospital, China Medical University, Taichung 404 Taiwan, and also with Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Mathematics and Big Data, Foshan University, Foshan 528000 China.
4. Department of Electronics Engineering, Institute of Electronics, National Yang-Ming Chiao Tung University, Hsinchu 30010 Taiwan.
5. Department of Electronics Engineering, Institute of Electronics, National Yang Ming Chiao Tung University, Hsinchu 30010 Taiwan.