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- W2072554889 abstract "Since manual surface reconstruction is very costly and time consuming, the development of automatic algorithm is ofgreat importance. In this paper a fully automated technique based on hierarchical structure analysis of the building toextract urban building models from LIDAR data is presented. In the processing of reconstruction, the existing automaticalgorithm can solve some simple building reconstructions, such as flat roof, gabled roof. As to complex buildings, manyresearchers use external information or manual interaction for help because of the complexity of the reconstruction andthe uncertainty of the building models especially in urban areas. The contour has the characteristics of closed loop, notintersect and deterministic topological relationship, which can be used to extract building ROI (region of interesting). Acontours tree is constructed, the topological relationships between the different contours which extracted by TIN fromthe LIDAR data are established, then the relationships among each hierarchical model can be determined by the analysisof the topological relationship among contour clusters and a component tree corresponding to the building can beconstructed by tracing the contours tree. The accurate edges of hierarchical model can be gained by the polarizedcornerity index-based polygonal approximation of the contour. Especially, a 3D model recognition based on 2D shaperecognition is employed. According to the characteristics of the contours, the category of the primitive parts can beclassified. We assemble the hierarchical models by using the topological relationships among layers, then, the completemodel of the building can be obtained. Experimental results show that the proposed algorithm is suitable forautomatically producing building models including most complex buildings from LIDAR data in urban areas." @default.
- W2072554889 created "2016-06-24" @default.
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- W2072554889 date "2009-10-30" @default.
- W2072554889 modified "2023-09-27" @default.
- W2072554889 title "Automatic complex building reconstruction from LIDAR based on hierarchical structure analysis" @default.
- W2072554889 doi "https://doi.org/10.1117/12.832626" @default.
- W2072554889 hasPublicationYear "2009" @default.
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