摘要
以香港特别行政区为例,利用1∶20000地形图在ArcGIS中建立高精度DEM,采用陆地卫星ETM+影像制作的正射影像作为三维表面的纹理信息,结合ERDASIMAGINE良好的三维显示功能,在自定义的投影坐标系统下,通过DEM和遥感正射影像的叠加,实现了三维地形可视化。
In this paper Hong Kong was taken as a case, the topographic map at a scale of 1∶20, 000 was used to create DEM, and Landsat ETM + image was geometrically corrected as a DOM image that was used as 3D surface texture. Under a self\|defined projection system, overlay was operated between DOM image and DEM, and 3D terrain visualization was implemented.
出处
《测绘信息与工程》
2005年第1期3-4,共2页
Journal of Geomatics
基金
国家重点基础研究资助项目(2003CB415205)
国家自然科学基金资助项目(40176032)
香港理工大学资助项目(APF54)。
