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：2002
卷号：XXXIV Part 4
出版社：Copernicus Publications
摘要：One of the primary objectives for geospatial data collection and processing is to generate realistic visualization products of sufficient resolution. Because of the ever growing global urbanization and the complexity of geographic features, realistic urban visualization becomes a major challenge for geospatial research, development and practice. This paper discusses various building modeling approaches and presents its realistic visualization results. Three modelling approaches, flat roof, triangulated irregular network and constructive solid geometry, are described. To create a photorealistic views, textures of for building roofs and walls are respectively acquired from aerial and ground photographs. Addressed in this paper are modelling generation, texture mapping and photorealistic visualization. Various examples are presented for the discussion and demonstration. Photorealistic views over the Purdue campus are shown. Our results and analyses justify the need for a GIS package to further integrate advanced 3-D modeling and animation functions to more effectively model and visualize complex urban environment
关键词：Visualization; Virtual Reality; Photorealistic; Building Modeling; 3-D City Model
