期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B4
页码：1341-1344
出版社：Copernicus Publications
摘要：The Great Wall is one of the biggest man-made wonders of the world! The wall consists of bricks made by different dynasties andbuilt on thousands of kilometers of steep mountain terrain. It has many different structures, irregular and inconsistent shapes.Therefore creating digital elevation models (DEMs) of the Great Wall through conventional satellite and photogrammetry stereoimages has always been a challenge. . In this article, we will show that airborne laser scanning (LiDAR) can be used for theproduction of highly accurate DEMs of the Great Wall. In addition, a terrestrial laser scanner mounted on a tripod can also used toimprove the terrain model, especially for the surfaces of the wall that are covered with dense vegetation. . The combined use ofairborne and terrestrial laser scanners shows some exciting and promising advantages. The integration and fusion of data from bothairborne and terrestrial laser scanners will be discussed. Highly accurate DEMs of the Great Wall with accuracies better than 10 cmhave been produced. An evaluation of the accuracies achieved has been performed using either check points or trajectories obtainedthrough kinematic GPS survey.
