Print Email Facebook Twitter Error propagation in the computation of volumes in 3D city models with the Monte Carlo method Title Error propagation in the computation of volumes in 3D city models with the Monte Carlo method Author Biljecki, F. Ledoux, H. Stoter, J. Faculty OTB Research Institute for the Built Environment Department GIS Technology Date 2014-10-08 Abstract This paper describes the analysis of the propagation of positional uncertainty in 3D city models to the uncertainty in the computation of their volumes. Current work related to error propagation in GIS is limited to 2D data and 2D GIS operations, especially of rasters. In this research we have (1) developed two engines, one that generates random 3D buildings in CityGML in multiple LODs, and one that simulates acquisition errors to the geometry; (2) performed an error propagation analysis on volume computation based on the Monte Carlo method; and (3) worked towards establishing a framework for investigating error propagation in 3D GIS. The results of the experiments show that a comparatively small error in the geometry of a 3D city model may cause significant discrepancies in the computation of its volume. This has consequences for several applications, such as in estimation of energy demand and property taxes. The contribution of this work is twofold: this is the first error propagation analysis in 3D city modelling, and the novel approach and the engines that we have created can be used for analysing most of 3D GIS operations, supporting related research efforts in the future. Subject UncertaintyError propagationMonte Carlo Method3D city modellingCityGMLRandom3Dcity To reference this document use: http://resolver.tudelft.nl/uuid:449dcf0e-2b48-4735-9570-2ca0644dfa27 DOI https://doi.org/10.5194/isprsannals-II-2-31-2014 Publisher ISPRS Source ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume II-2, 2014. ISPRS Technical Commission II Symposium, 6 – 8 October 2014, Toronto, Canada Part of collection Institutional Repository Document type conference paper Rights (c) 2014 Biljecki, F.Ledoux, H.Stoter, J. Files PDF isprsannals-II-2-31-2014.pdf 4.14 MB Close viewer /islandora/object/uuid:449dcf0e-2b48-4735-9570-2ca0644dfa27/datastream/OBJ/view