Affiliation: | aDepartment of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology (KAIST), 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea bDigital Media R&D Center, Samsung Electronics Co., Ltd., 416, Maetan-3dong, Youngtong-gu, Suwon, Gyeonggi 442-742, Republic of Korea |