摘要
多媒体同步是多媒体应用的一个重要需求。本文对OCPN模型进行了扩展,提出了一种基于时间Petri网的多媒体同步模型XOCPN,以对具有时间约束关系的多媒体合成进行规范描述,并具有支持灵活用户交互的能力。文中给出了处理异步用户交互的算法,并用示例说明。
Multimedia synchronization is a significant requirement for distributed multimedia applications.In this paper,we augment the OCPN model,and present a new multimedia synchronization model XOCPN based on timed Petri nets . Using this model we can give the formal specification for multimedia object compositions with time-constrained relations and deal with flexible user interaction. Algorithms for asynchronous user interactions are also presented, and explained by an example.
出处
《中国图象图形学报(A辑)》
CSCD
1998年第8期688-692,共5页
Journal of Image and Graphics
基金
国家"863"高技术计划