The thesis also describes the implementation of the reliable multicast data transmission system with the adaptation of alc and the above three key schemes . this system is applied in zju remote education broadcast - television - online project , one of the zhejiang province 5112 projects , and zhejiang rural technology information project , one of zhejiang province ' s major technology development projects 本文最后论述了采用异步分层编码和上面三个关键技术的可靠组播数据传送系统的实现,并在杭州市“ 5112 ”项目?浙大远教广电在线项目和浙江省重大科技攻关项目?浙江省科技信息化村镇项目上得到了应用,实际运行效果良好。
There are two research works is involved in this thesis . first , an algorithm of data reconstruction in videos and images is proposed . base on this reconstruction technology , we developed the precept of layer coding in sender , the structure of data stream and the precept of post processing in receiver with analyzing the scheme of real time transmission of video in network 本文的研究工作包括两个方面:首先提出了一种视频与图像中数据丢失的重建算法,以此为基础对基于网络的实时视频传输方案进行了研究,提出了信源端分层编码方案、数据流组织方案以及接收端后向处理方案。
Based on the study of a number of key techniques in alc protocol , the main achievements of this thesis are to develop three key feasible and effective technique solutions , including multi - channel data transmission organization , sending speed control and congestion control schemes 本文主要贡献是在研究了异步分层编码协议中的几个关键技术的基础上,提出了可行的、效果良好的三个关键的技术解决方案。它们分别是多通道数据传输组织方案、发送速率控制方案、拥塞控制技术方案。
Based on this technology of reconstruction , we analyzed the transmit characteristic of atm and packet switching network , then project of layer coding in sender and format of video stream is proposed respectively . at the receiver , the method of lost information reconstruction was proposed for the problem of packet or cell lost in transmission 以接收端丢失信息重建技术为基础,本文对atm网与分组交换网的传输特性进行了分析,针对atm网中vbr业务与分组交换网分别设计了相应的信源端分层编码方案以及视频流组织方案,同时在接收端对于分组与信元的丢失问题,提出了相应的丢失信息重建方案。