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Medientyp:
Sonstige Veröffentlichung;
E-Artikel
Titel:
Enhanced LoD concepts for virtual 3D city models
Beteiligte:
Benner, J.
[Verfasser:in];
Geiger, A.
[Verfasser:in];
Gröger, G.
[Verfasser:in];
Häfele, K. H.
[Verfasser:in];
Löwner, M. O.
[Verfasser:in]
Erschienen:
Copernicus Publications, 2014-01-14
Erschienen in:ISPRS Annals of the Photogrammetry / Remote Sensing and Spatial Information Sciences, II-2/W1, 51-61 ; ISSN: 2194-9042
Anmerkungen:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Beschreibung:
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.