Affiliations: School of Information Science, Korean Bible
University, 16 Danghyun 2-gil, Nowon-gu, Seoul, South Kroea. E-mail:
[email protected] | Department of Multimedia Engineering, Graduate School
of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita,
Osaka 565-0871, Japan. E-mail: [email protected]