文章基本信息

标题：Procedures and Software for High Quality TIN Based Terrain Surface Reconstruction
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作者：Z. Cvijetinovic ; D. Mihajlovic ; M. Vojinovic 等
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：629-634
出版社：Copernicus Publications
摘要：Algorithms and software for correct reconstruction of the terrain surface by using data acquired by digitization of existing maps have been developed. The software enables efficient high quality formation of DTM by using contour data, but also using data from other data sources and it properly handle different types of terrain data (mass points, contours, breaklines, structure lines, cliff lines…). TIN and Bézier triangular surface patches are used for surface reconstruction. Special attention is dedicated to the problem of respecting all implicit information about terrain surface that are contained within contour data. Experiments have been carried out in order to test the quality of the procedures and the software. DTMs were created using actual terrain data. Using these so-called "true" DTMs contours were generated. The aim was to use generated contours and some supplemental data (points and breaklines) as an input to various well known interpolation methods in order to test their capabilities for surface reconstruction. The results of these experiments demonstrated that the quality of terrain surface reconstruction from contours using developed procedures and software is better, or at least as good as the quality achieved by using procedures and methods implemented within standard GIS/DTM software. Developed procedures and software were extensively used within project of building country-wide DTM using data obtained by digitization of existing topographic maps. Large DTMs were also created within many orthophoto production projects. Processing of large amount of data provided objective estimation of efficiency and quality of different numerical procedures implemented within the software
关键词：Acquisition; Modelling; Reconstruction; Algorithms; Automation; DEM/DTM; Software