1. School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
2. VPIX Medical Inc., Daejeon, South Korea
3. School of Information, Communications and Electronics Engineering, Catholic University of Korea, Bucheon, South Korea
4. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
5. Department of Mechanical Engineering, Changwon National University, Changwon, South Korea