有损网络中三维模型渐进传输策略  

Progressive Transmission Strategy of 3D Model over Lossy Network

作　　者：张开翼[1] 余小清[1] 万旺根[1] 徐鸿伟[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《计算机工程》2010年第8期272-274,共3页Computer Engineering

基　　金：国家"863"计划基金资助项目(2007AA01Z319);国家自然科学基金资助项目(60873130);上海市教委重点学科建设基金资助项目(J50104);上海大学研究生创新基金资助项目(A16-0107-08-008)

摘　　要：采用渐进压缩网格(CPM)算法将其产生的数据流进行重要度分组,按照重要度的不同分成若干组,结合流式传输技术,对各重要度的数据组采用不同的网络信道进行传输,并根据网络状况和用户需求,动态改变通过可靠信道传输的数据量,从而提高系统的实时性,提出一种新的三维模型远程交互显示解决方案及相应的数据传输策略。仿真实验结果表明,该方法能在满足用户视觉需求和精度要求的前提下,获得较好的实时性。The CPM algorithm is applied and the data streams created by it is grouped into several sets by their important degree.With combination of streaming transmission technology,the data sets with different important degree are transmitted by respective channels.The network condition and user＇s needs are taken into account.The amount of data transmitted by the reliable channel can be changed dynamically and the real time characteristic of the system is improved.A new remote interactive display solution for 3D model over lossy network is also presented.Simulation results show the solution has better real-time performance under the premise of the user＇s visual need and the precision requirement.

关 键 词：三维模型 CPM算法 有损网络 渐进传输 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]