Active Media Technology 6th International Computer Science Conference, AMT 2001, Hong Kong, China, December 18-20, 2001. Proceedings - Liu, Jiming; Liu, Jiming; Yuen, Pong C.; Yuen, Pong C.; Li, Chung-hung; Li, Chung-hung; Ng, Joseph; Ng, Joseph; Ishida, Toru; Ishida, Toru (Springer Berlin Heidelberg : Imprint: Springer, 2001)