1. Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung, Taiwan
2. Department of Mechatronics Engineering, National Changhua University of Education, Changhua, Taiwan
3. Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung, Taiwan
4. Shenzhen Graduate School, Harbin Institute of Technology, HIT Campus of Shenzhen University Town, Shenzhen, China
5. Department of Electrical Engineering, National Chung Hsing University, Taichung, Taiwan