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| description |
As 3D city models are becoming available and attractive for consumer
purposes in personal navigation systems or visualization
applications, the hardware used to visualize these models changes
from special to consumer PCs or even to handheld and wireless
devices. As a consequence, tools have been developed to alter single
building models in their LOD in order to reduce the amount of data
to be transmitted. While these generalization algorithms construct
less detailed representations of the input models, they will also
produce inconsistencies. In the case of single stand-alone building
models, this may result in mismatches between the original and
generalized buildings ground plans, causing visual inconsistencies
and topological inconsistencies in the interaction with other
objects like streets. When adjusting simplified neighboring and
adjacent models to the original models ground plan, additional
errors may occur in features like common façade lines to be lost or
the development of unintentional new features like gaps. While these
errors visually disturb the transition between different LODs, the
topological correctness of the resulting city model may also be
degraded by overlaps evolving from the treatment of single buildings
throughout the generalization process. Means for preserving visual
and topological correctness in the generalization process will be
presented in the paper.
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| publisher |
University of Stuttgart : Collaborative Research Center SFB 627
(Nexus: World Models for Mobile Context-Based
Systems)
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| type |
Text
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| Article in Proceedings
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| source |
In: Proceedings of XXI ISPRS Congress, Beijing, China, July 3-11,
2008
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| ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2008-61/INPROC-2008-61.pdf
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| contributor |
Institut für Photogrammetrie (ifp)
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| format |
application/pdf
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| 283038 Bytes
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| subject |
Computer Applications General (CR J.0)
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