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：This paper is focused on two topics: first, it deals with a technique for the automated generation of 3D building models from directly observed LIDAR point clouds and digital aerial images, and second, it describes an object-relational technique for handling hybrid topographic data in a topographic information system. Automatic building extraction combining the mentioned data sources consists of three steps. First, candidate regions for buildings have to be detected. After that, initial polyhedral building models have to be created in these candidate regions in a bottom-up procedure. Third, these initial polyhedral building models have to be verified in the images to improve the accuracy of their geometric parameters. This paper describes the current state of development, the overall work flow, and the algorithms used in its individual stages. Intermediate results are presented
关键词：3D building models; data acquisition; sensor integration; object-relational data bases
