The author analyzed layered coding , multi description coding , technology of recover and hiding of errors , providing the approach " a approach of a multi description coding base on space domain dividing " , and then give a experiment to testify it 作者在文中较为详细的分析介绍流媒体编码中的分层编码、多描述编码和错误恢复隐藏机制,提出“基于空域分离多信道的多描述编码方案” ,并佐以实验数据验证。
A number of comparisons and analysis on different reliable multicast data transmission protocols have been carried out . considering the one - way characteristic of the chinese catv network , the alc is regarded as the best suitable multicast data transmission protocol for china 在可靠组播数据传送协议上,本文研究了许多可靠组播协议,通过比较和分析,综合我国有线电视网络单向性的特点,本文认为异步分层编码协议( alc )是最适合的可靠组播数据传送协议了。
The detailed fine granular scalable video coding technology and several improvements are presented . in the third part , a communication framework for fine granular scalable video stream is proposed . this framework has integrated video coding , decoding , congestion control and error control mechanism for video transmission 本文提出了internet中精细分层编码的视频通信系统框架,该框架有机地集成了精细分层的视频编解码、视频传输中的拥塞控制和差错控制等技术。
A multimedia proxy server model is proposed based on the layer - encoding model . the server model makes the server ' s cache be used effectively and can adapt the changing of network bandwidth . in the server model , the data quality of a program stored in the server ' s cache , is directly related to the requesting frequency and requested bandwidth of the program 本文提出了一套基于分层编码模型的多媒体代理服务器模型,该模型能自动适应国防科学技术大学研究生院学位论文工nternet中的带宽变化,充分利用代理服务器的cache空间,并使cache中缓存的多媒体数据质量与其点播频率和点播带宽成正比。
In the fourth part , some key technologies about fine granular scalable video coding , decoding and rate shaping are surveyed , including how to shape the stream to get a better psnr , and how to allocate the rate of base and enhancement layer . a comparison study on the rate shaping analytic model of normal layered coding and fgs coding is presented 另外,本文在对现有的fgs编解码技术深入研究的基础上,改进了精细分层编码中的截取算法,并讨论了码率分配算法,通过实验得到了码率分配的重要结论,且提出和对比了一般分层编码和精细分层编码的码流截取算法解析模型。