Extraction of 3D navigation space in virtual urban environments

buir.contributor.authorGüdükbay, Uğur
dc.citation.epage108en_US
dc.citation.spage105en_US
dc.contributor.authorYılmaz, Türkeren_US
dc.contributor.authorGüdükbay, Uğuren_US
dc.coverage.spatialAntalya, Turkey
dc.coverage.spatialAntalya, Turkey
dc.date.accessioned2016-02-08T11:51:09Z
dc.date.available2016-02-08T11:51:09Z
dc.date.issued2005-09en_US
dc.departmentDepartment of Computer Engineeringen_US
dc.descriptionConference name: 13th European Signal Processing Conference, 2005
dc.descriptionDate of Conference: 4-8 Sept. 2005
dc.description.abstractUrban scenes are one class of complex geometrical environments in computer graphics. In order to develop navigation systems for urban sceneries, extraction and cellulization of navigation space is one of the most commonly used technique providing a suitable structure for visibility computations. Surprisingly, there is not much work done for the extraction of the navigable area automatically. Urban models, except for the ones where the building footprints are used to generate the model, generally lack navigation space information. Because of this, it is hard to extract and discretize the navigable area for complex urban scenery. In this paper, we propose an algorithm for the extraction of navigation space for urban scenes in threedimensions (3D). Our navigation space extraction algorithm works for scenes, where the buildings are in high complexity. The building models may have pillars or holes where seeing through them is also possible. Besides, for the urban data acquired from different sources which may contain errors, our approach provides a simple and efficient way of discretizing both navigable space and the model itself. The extracted space can instantly be used for visibility calculations such as occlusion culling in 3D space. Furthermore, terrain height field information can be extracted from the resultant structure, hence providing a way to implement urban navigation systems including terrains.en_US
dc.identifier.urihttp://hdl.handle.net/11693/27348
dc.language.isoEnglishen_US
dc.publisherIEEE
dc.relation.isversionofhttps://ieeexplore.ieee.org/document/7077894
dc.source.title13th European Signal Processing Conference, EUSIPCO 2005en_US
dc.subject3D navigationen_US
dc.subjectCellulizationen_US
dc.subjectOcclusion cullingen_US
dc.subjectUrban visualizationen_US
dc.subjectView-cellsen_US
dc.subject3-D spaceen_US
dc.subject3D navigationen_US
dc.subjectBuilding footprinten_US
dc.subjectBuilding modelen_US
dc.subjectCellulizationen_US
dc.subjectOcclusion cullingen_US
dc.subjectSpace extractionen_US
dc.subjectTerrain heighten_US
dc.subjectUrban environmentsen_US
dc.subjectUrban modelen_US
dc.subjectUrban scenesen_US
dc.subjectView-cellsen_US
dc.subjectVisibility calculationen_US
dc.subjectVisibility computationen_US
dc.subjectAlgorithmsen_US
dc.subjectNavigation systemsen_US
dc.subjectSignal processingen_US
dc.subjectThree dimensionalen_US
dc.subjectVisibilityen_US
dc.subjectVisualizationen_US
dc.subjectThree dimensional computer graphicsen_US
dc.titleExtraction of 3D navigation space in virtual urban environmentsen_US
dc.typeConference Paperen_US
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