主要介绍影像数据库建立中的若干关键技术，分析和讨论了建立大型遥感影像数据库中需要加以研究和解决的主要问题和若干关键技术, 包括影像数据库的体系结构、扩充的关系数据库、无缝拼接、正射影像图的制作、数据压缩等。-Introduces the image database to establish a number of key technologies, analysis and discussed the establishment of large-scale remote sensing image database needs to be to study and solve major problems and a number of key technologies, including image database architecture, the expansion of the relational database, seamless splicing, orthophoto maps, data compression and so on.