通过真正射影像快速构建三维建筑物场景的方法Construct 3D models of scene on true orthoimage
关鸿亮,江恒彪,曹天景,刘先林
摘要(Abstract)：
数字摄影测量技术正从单机工作方式向系统集成的工作方式转变,获取和处理空间数据已变得较为容易。在三维数字城市建筑物建模方面,要求必须快速有效地提取建筑物边界,才有可能进行快速的三维景观建模作业。本文提出了利用DSM和真正射影像相结合构建地形景观的一种新方法,首先从真正射影像上提取建筑物的边界线,对建筑物多边形进行三角化处理,视地面模型为一带洞多边形,同样进行Delaunay三角化处理,接着从DSM和DEM获取建筑物的高度信息,构建三维建筑物模型,最后通过纹理映射的方式,对整个建模场景进行纹理贴图,这一方法取得了较好效果,已经在生产实践中得到了应用。
关键词(KeyWords)： 真正射影像;数字表面模型;建筑物模型;三角化技术
基金项目(Foundation):
作者(Author): 关鸿亮,江恒彪,曹天景,刘先林
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