基于坐标定位文件的不同坐标系下影像坐标一体化处理应用研究

当前很多测绘单位北京54、西安80及国家2000坐标系数据相互并存，这就造成数据在不同坐标下相互转换问题，特别是影像数据。为了节约数据转换成本，本文提出基于坐标定位文件的不同坐标系下正射影像的一体化处理，其基本思路在于直接对影像定位的坐标文件进行转换，通过前端正确显示影像位置，其特点是原理简单易于实现，不需要复杂的数据转换。

Research of DOM Transformations Between Different Coordinate Systems Based on Coordinate Files

There is plenty of data in different Coordinate systems, such as Beijing 54, Xi＇ an 80 and National 2000. This phenomenon makes the data transformation in different Coordinate systems very common, especially to DOM. In or- der to save time and money, a new method was put forwards in this paper. By changing the content of coordinate files, the author is able to make the DOM display in proper coordinate system. This way has been proved practical, economic and efficient for DOM transformation between different coordinate systems.