【摘要】 文章介绍了基于MPEG-4 BIFS的交互场景的实现机制,与VRML交互场景进行了比较,分析了基于BIFS的场景构成,并具体构造了一个动态文本显示的场景描述。由于基于MPEG-4标准的视频、音频信息编码效率高,并提供了丰富的交互功能,使其特别适合于视频聊天、网络会议、视频监控和视频交互游戏等领域。更多还原

【Abstract】 In this paper,the implementation mechanism of interaction scene based on MPEG-4 BIFS was introduced firstly,then it was compared with VRML interaction scene,the scene composition based on BIFS was analysised and a scene description for dynamic text display was structured specifically at the same time.For the high coding efficiency of video,audio information based on MEPG-4 and rich interactive features provided,it is especially suitable for areas such as video chat,web conferencing,video surveillance,video interactive games and etc.更多还原