利用遥感图象生成地形三维实景图
RENDERING THE 3D REALISTIC TERRAIN SCENE USING THE REMOTE SENSING IMAGES
-
摘要: 本文介绍了利用遥感影象作为纹理图象,采用纹理映射技术生成地形三维实景图的原理和算法.主要包括:遥感图象上特征点(目标点)坐标的量算;遥感图象与相应地面间透视变换关系的确定;影象灰度的重采样;实景图的显示.最后给出了实验结果.实验表明,这种方法所生成的地形三维实景图,所含信息量大,真实性好,现势性强.Abstract: The principle of rendering the 3D realistic terrain scene using the remote sensing images and the algorithm of texture mapping is introduced. The main procedure includes: measuring the coordinates of the characteristic points (targets) in the remote sensing images; determining the relation between remote sensing image and corresponding terrain model; grey resampling; displaying the realistic terrain scene. The results of the test show that the 3D realistic terrain scene rendered contains substantial information and has a good quality and reality.
下载: