图像控制点数据库的设计与实现

地面控制点数据是航天航空图像摄影测量几何处理的必需数据。文中首先比较了控制点数据的存储管理方式，即采用文件系统方式与数据库方式的优缺点；接着分析了控制点图像数据的特征，从而提出了图像控制点数据的数据库存储方案，讨论了图像控制点数据库的查询方法；最后结合文中的方法，设计并且实现了一个控制点图像数据库管理与应用实验系统。通过分析认为，建立控制点图像数据库是重复利用控制点资源的有效途径。

The Implementation and Design of Image Control Point Database

Ground control point data is the essential datum for geometry processing in the photogrammetry.The management of the data of the ground control point usually adopts the way of file system or database. This article has compared those two ways of management, namely the advantages and the disadvantages of the two methods, then it has analyzed the characteristic of the data of the image control point, accordingly proposed the scheme that the data of image control point was stored with database and designed the inquiry method of the image control point. At last, appling the method of this article, we designed and realized an experimental system of the image control point's management and application. And analysis discloses that it is the effective way of reutilizing resources of control point to set up the database of the image control point database.