DBPapers
DOI: 10.5593/SGEM2015/B22/S11.116

GIS-BASED 3D VISIBILITY MODELING OF OUTDOOR ADVERTISING IN URBAN AREAS

S. Chmielewski, D.Lee
Monday 21 September 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-35-3 / ISSN 1314-2704, June 18-24, 2015, Book2 Vol. 2, 923-930 pp

ABSTRACT
In this paper, we compare the accuracy of the viewshed approaches to 3D line of sight visibility analysis of outdoor advertisements in two different urban contexts. A solution is tested that transforms LiDAR vegetation points into spherical multipatch objects for rapid and more accurate 3D visibility modeling. This study confirms that a 3D approach performs better than a 2.5D approach and more importantly, that modeling vegetation as 3D spherical multipatches allows us to use LiDAR data in a rapid way to reach highly accurate results (up to 94,3% of overall accuracy) in outdoor advertisements visibility modeling.

Keywords: visibility modeling, outdoor advertisements, multipatch, LoS, LiDAR.

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