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Zhao, Z. (author), Ledoux, H. (author), Stoter, J.E. (author)
The LoD2 building models defined in CityGML are widely used in 3D city applications. The underlying geometry for such models is a GML solid (without interior shells), whose boundary should be a closed 2-manifold. However, this condition is often violated in practice because of the way LoD2 models are constructed and exchanged. Examples of the...
conference paper 2013
document
Biljecki, F. (author), Zhao, J. (author), Stoter, J.E. (author), Ledoux, H. (author)
This review paper discusses the concept of level of detail in 3D city modelling, and is a first step towards a foundation for a standardised definition. As an introduction, a few level of detail specifications, outlooks and approaches are given from the industry. The paper analyses the general uncertainties and shortcomings around the concept of...
conference paper 2013
document
Zhao, J. (author), Stoter, J. (author), Ledoux, H. (author), Zhu, Q. (author)
Many 3D GIS applications require 3D building models with different LoD (Level of Detail) that satisfy certain quality criteria. However, because of their complexity, most detailed 3D building models available are still produced manually, which results in inevitable geometric and topological errors. These errors hinder the downstream processing...
conference paper 2012
document
Zhang, X. (author), Zhao, X. (author), Molenaar, M. (author), Stoter, J. (author), Kraak, M.J. (author), Ai, T. (author)
Matching of building polygons with different levels of detail is crucial in the maintenance and quality assessment of multi-representation databases. Two general problems need to be addressed in the matching process: (1) Which criteria are suitable? (2) How to effectively combine different criteria to make decisions? This paper mainly focuses on...
conference paper 2012
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