摘要
由于年代久远、数据资料的遗失、控制点的难以获取以及影像的扫描质量问题,在历史航片数据制作过程中碰到了不少困难。本文从历史航片的扫描,到后期数据整理、空三加密及正射影像图制作等关键环节进行探讨,并对处理后获取的数字正射影像成果精度进行分析,阐述了整个历史航片数据处理的流程。
Because of the long history, the loss of data information, the difficult to obtain the control points and image scanning quality, there are many problems in the process of historical orthophoto generation. This paper expounds the workflow of historical orthophoto data processing,including image scanning, data neatening, three - dimensional triangula- tion and orthophoto generation, the result precision is also analyzed.
出处
《城市勘测》
2012年第6期93-95,102,共4页
Urban Geotechnical Investigation & Surveying
基金
住房和城乡建设部科技项目(2011-R2-3)
关键词
历史航片
空三加密
正射影像
historical aerophotography
three - dimensional triangulation
orthophoto
