Dr. Yo-Sung Ho received the B.S. and M.S. degrees in electronic engineering from Seoul National University, Seoul, Korea, in 1981 and 1983, respectively, and the Ph.D. degree in electrical and computer engineering from the University of California, Santa Barbara, in 1990. He joined ETRI (Electronics and Telecommunications Research Institute), Daejon, Korea, in 1983. From 1990 to 1993, he was with North America Philips Laboratories, Briarcliff Manor, New York, where he was involved in development of the Advanced Digital High-Definition Television (AD-HDTV) system. In 1993, he rejoined the technical staff of ETRI and was involved in development of the Korean DBS Digital Television and High-Definition Television systems. Since 1995, he has been with Gwangju Institute of Science and Technology (GIST), where he is currently Professor of Information and Communications Department. Since August 2003, he has been Director of Realistic Broadcasting Research Center at GIST in Korea. From September 2005, he has been a visiting scholar at University of Washington, Seattle, USA. He gave several tutorial lectures at various international conferences, including the IEEE Region 10 Conferences (TenCon) in 1999 and 2000, and the Pacific- Rim Conference on Multimedia (PCM) in 2006. He is presently serving as an Associate Editor of both IEEE Transactions on Circuits and Systems Video Technology (T-CSVT) and IEEE Transactions on Multimedia (T-MM). His research interests include Digital Image and Video Coding, Advanced Source Coding Techniques, Three-dimensional Image Modeling and Representation, and Three-dimensional Television.