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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yuanyuan Liu Gang Liu Zhenwen He |
| Copyright Year | 2010 |
| Description | Author affiliation: Faculty of Computer Science and Technology, China University of Geosciences(Wuhan), Wuhan, China (Yuanyuan Liu; Gang Liu; Zhenwen He) |
| Abstract | Large scale three-dimensional spatial data of underground and aboveground entity has features of different shapes, uneven spatial distribution and complicated spatial relationships. At present, the single spatial index structure can not satisfy the large scale three-dimensional spatial data organization and management. Especially for the index of the elements with information retrieval LOD, its efficiency is low. Considering these features, a new spatial index structure named LOD_SKDR tree structure is designed for management of large scale spatial database, which is combined with SKD-Tree, R-Trees and LOD object information. LOD_SKDR tree is a complex multi-level spatial index structure, which utilizes the object number as a bifurcation bound targets to improve the balance of SKD tree. At the same time, the R-Tree index space and texture scheduling of the content through SKD tree are restricted to reduce the time spending of the deletion or insertion and the time of stagnation for scheduling a large number of texture image data. LOD model object information is also used to improve the efficiency of real-time rendering of three-dimensional scenes. Compared with R tree, LOD_SKDR tree has great increase in search efficiency. And considering pre-scheduling of object textures, the effect of its application is more pronounced when spatial data is in large scale. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 1572476 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424473014 |
| e-ISBN | 9781424473038 |
| DOI | 10.1109/GEOINFORMATICS.2010.5567757 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-06-18 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | LOD Solid modeling Texture image Computational modeling Three-dimensional spatial database SKDR_Tree Spatial databases Data models Three dimensional displays LOD-SKDR tree Spatial indexes |
| Content Type | Text |
| Resource Type | Article |
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