1. Chonnam National University,Dept. of Intelligent Electronics and Computer Engineering,Gwangju,South Korea
2. Alps Electric Korea Co., Ltd.,Gwangju,South Korea
3. Oregon State University,United States of America
4. Chonnam National University,School of Electronics and Computer Engineering and Dept. of Intelligent Electronics and Computer Engineering,Gwangju,South Korea
5. Korea Nazarene University,Dept. of IT Artificial Intelligence,Cheonan,South Korea