基于集群的遥感影像并行绘制研究  

Parallel rendering research of remote sensing image based on cluster

作　　者：冯志元[1] 李朝奎[1,2] 殷智慧[1] 杨武[1] 

机构地区：[1]湖南科技大学地理空间信息湖南省工程实验室,湖南湘潭411201 [2]湖南科技大学地球空间信息科学研究中心,湖南湘潭411201

出　　处：《测绘工程》2014年第7期26-29,33,共5页Engineering of Surveying and Mapping

基　　金：国家自然科学基金资助项目(41271390);湖南省自然科学基金资助项目(12JJ9023);湖南科技大学研究生优秀学位论文培育资助项目(S120036)

摘　　要：基于集群并行绘制系统,采用基于WCF通信构架的Sort-first体系结构,对遥感影像建立金字塔层次模型,提高并行绘制效率。并行绘制集群系统采用基于WCF构架并发机制的分布式数据存储模式,突破传统的共享数据存储模式,减少数据在网络传输的开销。在集群系统环境下,对遥感影像建立金字塔模型和未建立金字塔模型两种情况下的影像数据进行并行绘制实验。实验结果表明:建立金字塔模型的遥感影像使得并行绘制效率显著提高。Parallel rendering system based on cluster uses the Sort-first system structure based on WCF communication framework, through the establishment of the pyramid hierarchy model of remote sensing image in order to improve the parallel rendering efficiency. The cluster parallel rendering system based on distributed data storage mode of WCF framework, through the sharing of data storage mode, greatly reduces the time of the data in the network transmission. Based on the cluster system environment, two kinds of parallel rendering experiments with and without pyramid model are made for the remote sensing image, as a result of which the pyramid model can improve the efficiency of parallel rendering.

关 键 词：集群 并行绘制 WCF 分布式存储 金字塔 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置]