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Methods for spatial data quality of 3D city models

: Krämer, Michel; Haist, Jörg; Reitz, Thorsten

Amicis, Raffaele de (Ed.); Conti, Giuseppe (Ed.) ; European Association for Computer Graphics -EUROGRAPHICS-; TU Darmstadt; Fraunhofer-Institut für Graphische Datenverarbeitung -IGD-, Darmstadt; TU Graz, Institut für ComputerGraphik und WissensVisualisierung -CGV-; TU Brunswick, Institute of Scientific Computing:
5th EUROGRAPHICS Italian Chapter Conference 2007 : Eurographics Italian Chapter Proceedings
Aire-la-Ville: Eurographics Association, 2007
ISBN: 978-3-905673-62-3
European Association for Computer Graphics, Italian Chapter (Conference) <5, 2007, Trento>
Conference Paper
Fraunhofer IGD ()
3D city model; 3D geographic information systems (GIS); quality; Quality Measurement; 3D geographic metadata; geographic information systems (GIS)

3D city models are nowadays used in very different applications. Due to this, the commercial exchange and, thus, the demand for high quality data becomes more and more important. We describe a quality model that defines common parameters used for spatial quality measurement, especially when dealing with 3D city models. Therefore, we explore different representations of city models: the reality, the user's idea and the digital data set. A well-defined mathematical formalism which addresses the different quality parameters is presented. This formalism also helps to create algorithms for measurement and improvement of spatial data quality. The aim is to be able to define uniformed criteria which can be easily transformed into software. The implemented prototype serves as base for the evaluation in which we provide examples based on actual data sets using typical quality requirements.