NDLI: A method for LOD generation of 3D city model based on extended 3D R-tree index

Content Provider	IEEE Xplore Digital Library
Author	Gong Jun Zhang Hanwu
Copyright Year	2011
Description	Author affiliation: School of Geography and Environment, Jiangxi Normal University, Nanchang, China (Gong Jun; Zhang Hanwu)
Abstract	Automatic LOD generation is the difficult problem in computer graphics and 3D GIS. This paper presents a new method to generate the LOD Model. It utilizes the hierarchical structure of R-tree to integrate LOD model. In order to decrease the objects to be rendered, the view frustum culling algorithm is also put forward. The method extends the structure of R-tree, which can manage objects in the intermediate nodes. From bottom to top, the objects in the different layers can be generated. Then, LOD parameters of layers also are defined respectively. Experiments prove that this method is of great benefit to the practice of 3D GIS, and especially fits the building LOD representation.
Starting Page	2004
Ending Page	2008
File Size	246641
Page Count	5
File Format	PDF
ISBN	9781612841809
e-ISBN	9781612841816
DOI	10.1109/FSKD.2011.6019920
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	LOD Solid modeling 3D Geographic Information Systems R-tree query Cities and towns Three dimensional displays Data models Spatial databases Indexes
Content Type	Text
Resource Type	Article

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A method for LOD generation of 3D city model based on extended 3D R-tree index