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Conference Paper: Fast and robust generation of city scale urban ground plan

TitleFast and robust generation of city scale urban ground plan
Authors
KeywordsUrban geometry objects
Geometry processing
Numerical robustness
Simulation
Issue Date2011
PublisherComputer Graphics International.
Citation
Computer Graphics International 2011, Ottawa, Canada, 12-15 June 2011, p. Article ID F02 1-Article ID F02 10 How to Cite?
AbstractSince the introduction of the concept of Digital Earth, almost every major international city has been re-constructed in the virtual world. A large volume of geometric models describing urban objects has become freely available in public domain via software like Google Earth. Although mostly created for visualization, these urban models can benefit many applications beyond visualization including video games, city scale evacuation plan, traffic simulation and earth phenomenon simulations. However, these urban models are mostly loosely structured and implicitly defined and require tedious manual preparation that usually take weeks if not months before they can be used. In this paper, we present a framework that produces well-defined ground plans from these urban models, an important step in the preparation process. Designing algorithms that can robustly and efficiently handle unstructured urban models at city scale is the main technical challenge. In this work, we show both theoretically and empirically that our method is resolution complete, efficient and numerically stable. Based on our review of the related work, we believe this is the first work that attempts to create urban ground plans automatically from 3D architectural meshes at city level. With the goal of providing greater benefit beyond visualization from this large volume of urban models, our initial results are encouraging.
Persistent Identifierhttp://hdl.handle.net/10722/192446
ISBN

 

DC FieldValueLanguage
dc.contributor.authorLien, JM-
dc.contributor.authorCamelli, F-
dc.contributor.authorWong, WSD-
dc.date.accessioned2013-11-06T02:22:51Z-
dc.date.available2013-11-06T02:22:51Z-
dc.date.issued2011-
dc.identifier.citationComputer Graphics International 2011, Ottawa, Canada, 12-15 June 2011, p. Article ID F02 1-Article ID F02 10-
dc.identifier.isbn978-0-88927-414-3-
dc.identifier.urihttp://hdl.handle.net/10722/192446-
dc.description.abstractSince the introduction of the concept of Digital Earth, almost every major international city has been re-constructed in the virtual world. A large volume of geometric models describing urban objects has become freely available in public domain via software like Google Earth. Although mostly created for visualization, these urban models can benefit many applications beyond visualization including video games, city scale evacuation plan, traffic simulation and earth phenomenon simulations. However, these urban models are mostly loosely structured and implicitly defined and require tedious manual preparation that usually take weeks if not months before they can be used. In this paper, we present a framework that produces well-defined ground plans from these urban models, an important step in the preparation process. Designing algorithms that can robustly and efficiently handle unstructured urban models at city scale is the main technical challenge. In this work, we show both theoretically and empirically that our method is resolution complete, efficient and numerically stable. Based on our review of the related work, we believe this is the first work that attempts to create urban ground plans automatically from 3D architectural meshes at city level. With the goal of providing greater benefit beyond visualization from this large volume of urban models, our initial results are encouraging.-
dc.languageeng-
dc.publisherComputer Graphics International.-
dc.relation.ispartofProceedings of Computer Graphics International 2011-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectUrban geometry objects-
dc.subjectGeometry processing-
dc.subjectNumerical robustness-
dc.subjectSimulation-
dc.titleFast and robust generation of city scale urban ground planen_US
dc.typeConference_Paperen_US
dc.identifier.emailWong, WSD: dwong2@hku.hk-
dc.description.naturepublished_or_final_version-
dc.identifier.spageArticle ID F02 1-
dc.identifier.epageArticle ID F02 10-
dc.publisher.placeOttawa, Canada-

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