摘要
结合国家1∶50 000数据库更新工程,研究和探讨了地形要素数据变化检测的内容、技术方法,并设计和实现了一套基于矢量栅格化比较的变化检测方法,对全国的不同时期的1∶50 000地形要素数据(DLG)进行了变化检测。
With the nationall:50 000 database updating project, this paper studies and discusses the content and technical methods of topographic data change detection. The change detection method of vector-based raster comparison has been designed and realized. Bv this nlelhod, the change information of the nationall:50 000 topographic data (l)l,G)ofdiffcrcnt times has been detected.
出处
《地理信息世界》
2012年第2期10-12,20,共4页
Geomatics World