Building Facade Reconstruction by Fusing Terrestrial Laser Points and ImagesReport as inadecuate




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International Institute for Geo-Information Science and Earth Observation ITC, Hengelosestraat 99, 7500 AA Enschede, The Netherlands





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Abstract Laser data and optical data have a complementary nature for three dimensional feature extraction. Efficient integration of the two data sources will lead to a more reliable and automated extraction of three dimensional features. This paper presents a semiautomatic building facade reconstruction approach, which efficiently combines information from terrestrial laser point clouds and close range images. A building facade’s general structure is discovered and established using the planar features from laser data. Then strong lines in images are extracted using Canny extractor and Hough transformation, and compared with current model edges for necessary improvement. Finally, textures with optimal visibility are selected and applied according to accurate image orientations. Solutions to several challenge problems throughout the collaborated reconstruction, such as referencing between laser points and multiple images and automated texturing, are described. The limitations and remaining works of this approach are also discussed. View Full-Text

Keywords: building reconstruction; terrestrial laser scanning; data fusion; texturing building reconstruction; terrestrial laser scanning; data fusion; texturing





Author: Shi Pu * and George Vosselman

Source: http://mdpi.com/



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