1. Department of Electronics and Information Engineering, Hansung University, Seoul, Republic of Korea
2. StradVision, Seoul, Republic of Korea
3. School of Computer Science Engineering, Jeonbuk National University, Jeonju-si, Republic of Korea
4. Research Center of Electrical and Information Technology, Seoul National University of Science and Technology, Seoul, Republic of Korea
5. Department of Electronics Engineering, Hankuk University of Foreign Studies, Yongin-si, Republic of Korea