In this paper, a technical framework of 3D change detection based on existing Digital Elevation Model (DEM), Digital Ortho image (DOM), Digital Line Graph (DLG) and new stereo imagery is presented.

• 摘要本文提出了利用空间数据库中已有的DEM、DOM、DLG和新影像进行三维变化检测，在此基础上提取二维变化信息的技术框架。