Object-Oriented Model for Distributed Video-Conference System
Zhu Li¹, Zhou Junhui², ZhengShouqi¹
(1. Xi'an Jiaotong University, Xi'an 710049, China; 2. Xidian University)

Abstract: A video-conference system is developed using a layered model. Object-oriented components and semantic relations among multimedia are specified. The model decomposes the multimedia data into a set of objects at the £É/£Ï level, processing level, transport level and network level, respectively, where different objects could be handled simultaneously. It is easy to implement the system by dataª²flow programming; it is adaptive to programming and networking environments. Based on this model, the parallelisms with various granularities could be exploited for realª²time applications. The program modules based on the model have a good reusability such that systems under different operational environments could be developed easily, and this facilitates intercommunications.
Keywords: distributed video-conference;object-oriented mechanism;multimedia objects;semantic relation;parallelism