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：2007
卷号：XXXVI-5/W47
出版社：Copernicus Publications
摘要：3D landmarks are outstanding virtual 3D models of buildings. They can be generated using close-range photogrammetry, terrestrial laserscanning or 3D modelling. The complexity of the geometry is low-polygonal and therefore not comparable to high-detailed architectural CAD models of buildings. For the realistic appearance of the objects a photorealistic texture mapping using high resolution photographs is applied. The textures can be stored either in separate texture bitmaps or in one single texture group bitmap per objects. In this paper the various approaches of data capture, model generation and the characteristics of the geometry and the textures of 3D landmarks are illustrated. Furthermore some examples of typical applications of 3D landmarks including the requirements concerning complexity and accuracy of the 3D landmarks are presented
