一种基于非正射遥感影像直接生成三维地形图的方法

A Method of Generating 3D Terrain Maps Directly from Non-Ortho Photos

地形的真实性是地形三维可视化的重要组成部分 ,在地形表面叠加纹理图象是一种理想的提高地形真实性的有效方法。本文介绍了利用直接线性变换确定纹理图象与地形透视图之间的映射关系 ,直接生成三维地形透视图的一种方法 ,缩短了地形三维透视图生成周期 ,大大提高了制作三维地形透视图的效率 。

The sense of being realistic is one of the important factors of 3D terrain visulizition and teXture mapping is the commonly accepted method of improving the sense.This paper introduces a method of using direct linear transformation(DLT) to generate 3D terrain maps directly from non-ortho photos,shortening the period for generating 3D terrain maps.The eXperiment shows that this method is of high efficiency,adaptability and practicability.