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：1998
卷号：XXXII Part 4
出版社：Copernicus Publications
摘要：In this paper the accuracy of automatic DTM computation on the digital photogrammetric workstation DPW770 of Leica-Helava will be discussed. The software component of the photogrammetric System is the Softcopy Exploitation Tool(SOCET SET) by Helava, with module "Terrain". Basis for the investigation was a test data set (image scale 1:13000) ofthe Institute for Photogrammetrie of Stuttgart University, originally provided for an OEEPE test " ExperimentalInvestigation into Automatic DTM-Generation". The two different possibilities for automatic DTM generation with SOCETSET, the non-adaptive method and the adaptive method, will be explored and compared. Investigated was the accuracyin a stereo model with rough topography and most different land use. In order to be able to determine the accuracy ofautomatically calculated elevations, a data set consisting of some 2700 check points was made available. The checkpoints are distributed in a symmetric raster with 25 m grid distance and, for a more detailed analysis, are additionallyfurnished with attributes such as land use, terrain roughness, and texture. In order to be able to make a statement aboutthe optimal scanner resolution, test data sets with resolution of 15 μm, 30 μm and 60 μm were also made available
