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Enhanced LoD concepts for virtual 3D city models

Benner, J.; Geiger, A.; Gröger, G.; Häfele, K.H.; Löwner, M.O.

Abstract:
Virtual 3D city models contain digital three dimensional representations of city objects like buildings, streets or technical infrastructure. Because size and complexity of these models continuously grow, a Level of Detail (LoD) concept effectively supporting the partitioning of a complete model into alternative models of different complexity and providing metadata, addressing informational content, complexity and quality of each alternative model is indispensable. After a short overview on various LoD concepts, this paper discusses the existing LoD concept of the CityGML standard for 3D city models and identifies a number of deficits. Based on this analysis, an alternative concept is developed and illustrated with several examples. It differentiates between first, a Geometric Level of Detail (GLoD) and a Semantic Level of Detail (SLoD), and second between the interior building and ist exterior shell. Finally, a possible implementation of the new concept is demonstrated by means of an UML model.

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Verlagsausgabe §
DOI: 10.5445/IR/120094297
Veröffentlicht am 06.04.2018
Originalveröffentlichung
DOI: 10.5194/isprsannals-II-2-W1-51-2013
Coverbild
Zugehörige Institution(en) am KIT Institut für Angewandte Informatik (IAI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2013
Sprache Englisch
Identifikator ISSN: 2194-9042
urn:nbn:de:swb:90-AAA1200942973
KITopen-ID: 120094297
HGF-Programm 35.01.01 (POF II, LK 01)
Erschienen in ISPRS Annals of the Photogrammetry / Remote Sensing and Spatial Information Sciences
Band II-2/W1
Seiten 51-61
Schlagworte Virtual 3D city models, semantic data models, CityGML, Level of Detail
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