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：2009
卷号：XXXVIII-7/C4
页码：209-214
出版社：Copernicus Publications
摘要：This paper presents an efficient and robust strategy for building description and extraction from high resolution aerial image. This approach is different from traditional techniques in shape formation. Traditionally, extraction methods usually rest purely on edges or regions. However, this proposed approach integrates edges and regions in an excellent manner. Firstly, region grow method in RGB space is used to obtain the approximate shape of the building. Secondly, Hough transformation is used to derive the two perpendicular line sets corresponding to building edges. Thirdly, the intersectional nodes can be utilized to construct a structural graph of building after analysis of each line segments. Finally, cycle detection algorithm is implemented to obtain cycles in the graph. With this cycles, the exact building boundary can be easily attained
关键词：Building Extraction; Building Description; Hough Transform; Graph Search; Region Grow
