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 B2
页码：351-356
出版社：Copernicus Publications
摘要：Terrain skeletons have played a key role in survey and mapping, hydrological applications, military applications, generalization studies, determination of political borders, discovery of the steepest slope path and so on. Based on DEM, the terrain skeleton can be extracted effectively. At the same time, the pattern recognition widely used in the fingerprint matching, script recognition and secu- rity authentication. From the viewpoint of pattern recognition, the terrain skeletons are the characteristics of terrain. How to measure the similarity of skeletons and promote the pattern recognition skeletons based is one of the urgent research fields. In fields of spatial analyst, spatial object can be interpreted at least by topology relationship and spatial orientation. In this paper, the aim is to construct a set of methods combination topology indices and spatial orientation. The result shows that topology indices showing some advan- tages in portray the geomorphologic characteristics and the Loess Liang has more prominent orientation than Loess Mao.
