几何校正后的三维地形可视化及应用  

Three Dimensional Terrain Visualization and Its Application after Geometric Correction

作　　者：章鹏[1] 岳建平[1] 

机构地区：[1]河海大学地球科学与工程学院,江苏南京210098

出　　处：《测绘与空间地理信息》2017年第6期47-48,50,共3页Geomatics & Spatial Information Technology

基　　金：国家自然科学基金项目"融合形变遥测技术与数据处理方法研究"(41174002)资助

摘　　要：三维可视化技术的发展日益成熟,本文以ERDAS IMAGINE软件为基础,利用Arc GIS软件将该地形图的高程数据转换为高精度的数字高程模型,通过影像的几何校正后,将DEM影像与该区域的多光谱影像图进行叠加,从而实现了三维地形的可视化。几何校正后的三维地形真实感更强,并在此基础上分析了三维地形可视化的应用,对于虚拟现实技术的迅速发展有着重要的意义。The development of 3D visualization technology is becoming more and more mature, this paper is based on ERD AS IMAG-INE software, using ArcGIS software converts the topographic elevation data to high precision digital elevation model, through the geo-metric correction of image, DEM images and the multi spectral images of region were superimposed, so as to realize the visualization of 3D terrain. Three dimensional terrain after geometric correction is more realistic. On the basis of this, the application of 3D terrain vi-sualization is analyzed, which is of great significance for the rapid development of virtual reality technology.

关 键 词：几何校正 三维可视化 ERDAS 数字高程模型 

分 类 号：P228[天文地球—大地测量学与测量工程]