1. School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Australia
2. Dept. Distributed Information Technology, University of Passau, Innstrasse 43, Germany
3. Universitat Politècnica de Catalunya (UPC), Dpt. d'Arquitectura de Computadors, Barcelona, Spain
4. Department Metadata, Fraunhofer IDMT, Germany
5. NHK Science & Technical Research Laboratories, Japan
6. Lab. of Distributed Multimedia Information Systems & Applications (MUSIC), Technical University of Crete (TUC), Greece
7. School of Computer Science and Engineering, Konkuk University, 1 Hwayang-bong, Kwangjin-Gu, Seoul, Korea