期刊名称：Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN：2083-2214
出版年度：2010
卷号：21
语种：English
出版社：Main Board of Association of Polish Surveyors
摘要：The automatic reconstruction of three-dimensional models of buildings has been for several years a major research project. Models of buildings are increasingly used for economic reasons in spatial planning. Among the global methods of detection,useful is the active measurement system ALS. However,building reconstruction based only on a cloud of points is complicated,therefore it is very useful to use additional information from other sources. In the present study were used cadastral maps,which allowed a whole set of points to choose only those which reflected from the roofs of buildings. Vectors from the ground plans were obtained as the edges of the roofs of buildings,which were also used as boundaries based on cut points that represented the roof. Roof surfaces were detected from the lidar data. The shape of a roof is automatically determined using the algorithm based on the split merge method. The aim of the algorithm is the transition from particular to general, so it is possible to detect the size of roof elements,which correspond to the size defined at the beginning voxels. The process of identifying roofs runs iteratively,based on the parameters describing the plane. Vectors are raised to the height of the building roof. Models of buildings were derived through integration of vector data from the ground plans,and data from airborne laser scanning is placed on digital terrain models. A terrain model was built of automatically filtered clouds of points.
其他摘要：Automatyczna rekonstrukcja trójwymiarowych modeli budynków jest od kilku lat jednym z ważniejszych tematów badawczych na świecie. Obecnie zauważalny jest duży popyt na rekonstruowanie modeli miast 3D,a ich prezentacja i wizualizacja,jest nie tylko przydat
关键词：airborne laser scanner;building projection;model 3D
其他关键词：lotniczy skaning laserowy;rzut budynku;model 3D
