Virtualization of 3D Topographic Landscapes on RS Imagery——A Case Study of Sailipu District of Tibet
XIA Qing， LIU Dengzhong， SHI Yong

1 西南科技大学， 绵阳 621010； 2 成都理工大学地球科学学院，成都  610059；3 中国第五冶金建设公司，成都 610059

Abstract

The remote sensing image can objectively reflect the characteristics of shape, structure and spatial relationship of the ground objects and enable us to get a macroscopic view of them. But the three-dimensional space cannot be reflected by two-dimensional plane. Sailipu will be taken as an example. The three-dimensional model of Sailipu is created by integrating image with Digital Elevation Model (DEM). The model describes the topographic characteristics of Sailipu truly and effectively.
Keywords: remote sensing；digital elevation model (DEM); Sailipu