1. Department of Medical IT Convergence Engineering, Kumoh National Institute of Technology, Gumi 730-701, South Korea
2. Biomedical IT Convergence Center, Gumi Electronics and Information Technology Research Institute, Gumi 730-701, South Korea
3. Hanwha Techwin R&D Center, Seongnam-si, Gyeonggi-do 13488, South Korea
4. Department of Creative Convergence Engineering, Hanbat National University, Daejeon 305-719, South Korea