采用镶嵌数据模型建设与浏览地理国情影像库

摘要

For the problems of managing geographic national condition census image products by using traditional raster data model,the storage characteristics of mosaic dataset such as layered and blocked strategy,dynamic mosaic model are analyzed.Directed to the question occurred in the process of building the product database,several major factors for browsing performance and storage the images are elaborated and verified.The general process of managing mass remote sensing images using mosaic dataset model is proposed.%针对传统栅格数据模型管理地理国情普查影像成果数据存在的问题,通过分析镶嵌数据集模型的特点以及海量影像数据分级、分层、分块的存储机制,结合镶嵌数据集模型进行海量遥感影像数据管理的一般流程,阐述了影响镶嵌数据集入库速度和浏览性能的几个主要因素,并对这些主要参数的调优方法进行了分析及实验验证.