Print Email Facebook Twitter Formalisation of the level of detail in 3D city modelling Title Formalisation of the level of detail in 3D city modelling Author Biljecki, F. Ledoux, H. Stoter, J.E. Zhao, J. Faculty Architecture and The Built Environment Department OTB Date 2014-06-04 Abstract The level of detail in 3D city modelling, despite its usefulness and importance, is still an ambiguous and undefined term. It is used for the communication of how thoroughly real-world features have been acquired and modelled, as we demonstrate in this paper. Its definitions vary greatly between practitioners, standards and institutions. We fundamentally discuss the concept, and we provide a formal and consistent framework to define discrete and continuous levels of detail (LODs), by determining six metrics that constitute it, and by discussing their quantification and their relations. The resulting LODs are discretisations of functions of metrics that can be specified in an acquisition–modelling specification form that we introduce. The advantages of this approach over existing paradigms are formalisation, consistency, continuity, and finer specification of LODs. As an example of the realisation of the framework, we derive a series of 10 discrete LODs. We give a proposal for the integration of the framework within the OGC standard CityGML (through the Application Domain Extension). Subject level of detail3D city modellingscaleCityGMLADE To reference this document use: http://resolver.tudelft.nl/uuid:84fbf8ca-0deb-4665-88c4-e2218d7d59a3 Publisher Elsevier ISSN 0198-9715 Source Computers, Environment and Urban Systems, 48, 2014; Accepted Manuscript Other version https://doi.org/10.1016/j.compenvurbsys.2014.05.004 Part of collection Institutional Repository Document type journal article Rights (c) The authors Files PDF Biljecki2014ce.pdf 3.83 MB Close viewer /islandora/object/uuid:84fbf8ca-0deb-4665-88c4-e2218d7d59a3/datastream/OBJ/view