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Sensors 2009, 9(6), 4525-4542; doi:10.3390/s90604525
Article

Building Facade Reconstruction by Fusing Terrestrial Laser Points and Images

*  and
International Institute for Geo-Information Science and Earth Observation (ITC), Hengelosestraat 99, 7500 AA Enschede, The Netherlands
* Author to whom correspondence should be addressed.
Received: 23 April 2009 / Revised: 21 May 2009 / Accepted: 5 June 2009 / Published: 9 June 2009
(This article belongs to the Special Issue LiDAR for 3D City Modeling)
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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.
Keywords: building reconstruction; terrestrial laser scanning; data fusion; texturing building reconstruction; terrestrial laser scanning; data fusion; texturing
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Pu, S.; Vosselman, G. Building Facade Reconstruction by Fusing Terrestrial Laser Points and Images. Sensors 2009, 9, 4525-4542.

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