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http://dx.doi.org/10.7319/kogsis.2014.22.4.003

Update of Digital Map by using The Terrestrial LiDAR Data and Modified RANSAC  

Kim, Sang Min (Department of Civil and Environmental Engineering, Yonsei University)
Jung, Jae Hoon (Department of Civil and Environmental Engineering, Yonsei University)
Lee, Jae Bin (Department of Civil Engineering Mokpo National University)
Heo, Joon (Department of Civil and Environmental Engineering, Yonsei University)
Hong, Sung Chul (ICT Convergence and Integration Research Division, Korea Institute of Construction Technology)
Cho, Hyoung Sig (Department of Civil and Environmental Engineering, Yonsei University)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.22, no.4, 2014 , pp. 3-11 More about this Journal
Abstract
Recently, rapid urbanization has necessitated continuous updates in digital map to provide the latest and accurate information for users. However, conventional aerial photogrammetry has some restrictions on periodic updates of small areas due to high cost, and as-built drawing also brings some problems with maintaining quality. Alternatively, this paper proposes a scheme for efficient and accurate update of digital map using point cloud data acquired by Terrestrial Laser Scanner (TLS). Initially, from the whole point cloud data, the building sides are extracted and projected onto a 2D image to trace out the 2D building footprints. In order to register the footprint extractions on the digital map, 2D Affine model is used. For Affine parameter estimation, the centroids of each footprint groups are randomly chosen and matched by means of a modified RANSAC algorithm. Based on proposed algorithm, the experimental results showed that it is possible to renew digital map using building footprint extracted from TLS data.
Keywords
Digital Map; Building Footprint; Terrestrial LiDAR; RANSAC (RANdom SAmple Consensus);
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Times Cited By KSCI : 7  (Citation Analysis)
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