基于提升小波的可伸缩性实时压缩编码算法

在传统的网络应用之外，集音频、视频和共享数据于一身的流媒体网络通信逐渐成为计算机网络通信的重要应用和当前研究的热点问题.由于IP网络存在着延时、误码、丢包、带宽波动等问题，使得其无法为实时视频传输提供服务质量保障,为此介绍了提升小波和嵌入式零树编码的理论知识，设计了一种提升小波和嵌入式零树算法相结合的可伸缩性编码方案，从而满足诸如渐进传输，图像渐现等网络应用需要.

Research on Scalable Real-Time Video Compression Coding Based on Lifting Wavelet

With the further developments of the Internet,besides the original Internet applications,the application of media stream communication becomes a very important kind of network communication application,which is also  a research focus.Because IP network has some inherent characters such as delay,transmit error,packet loss and bandwidth fluctuation.it can only afford best-effort service,but can not offer guarantee of service quality  for the real time video stream transmission.So it is neeessary to find a new video compression coding and transmitting method that is suitable for the IP network and network based on scalable video coding so as to meet the requirment to some extent.This text introduceds the theory of lifting wavelet and EZW in detail,and presents an scalable video coding combined lifting wavelet and EZW.It can meet the needs of Internet applications such as progressive transmission,gradual image showing,and so on.