多源影像数据库金字塔结构的研究与实践  

Research and practice on pyramid structure of multi-source raster database

作　　者：贠建明[1] 汪汇兵[2] 唐新明[2] 

机构地区：[1]国家测绘局陕西基础地理信息中心,西安710054 [2]国家测绘局卫星测绘应用中心,北京100830

出　　处：《测绘科学》2011年第4期53-55,共3页Science of Surveying and Mapping

基　　金：国家基础测绘项目(1460130524207);国家863计划资助项目(2006AA12Z214)

摘　　要：针对大数据量遥感影像的管理与快速调度显示问题,本文概述了基于关系型数据库的金字塔型数据组织与管理方法。详细介绍了分块分层的数据结构及其快速索引机制,并从建立、索引、调度、缓存四个方面比较讨论了海量、多源影像数据库金字塔建立的两类策略,并对其进行了分析比较。最后通过开发实践验证了分析比较的结论,并给出了策略的选取原则。Aiming at the management and quickly displaying of the massive remote sensing images, this paper summarized the organization and management methods of pyramid data based on RDBMS. Also it introduced the tile and hierarchy data structure and quickly indexing technique in detail, and from building, indexing, scheduling and cache four aspects comparatively discussed and compared the two pyramid building strategies for multi-source image database. Finally, it developed a system based on the specific projects, verified the comparison results, and gave the principle of selection.

关 键 词：海量影像 多源 影像金字塔 分层分块 

分 类 号：P208[天文地球—地图制图学与地理信息工程]