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Proceedings Paper

New method adaptive to geospatial information acquisition and share based on grid
Author(s): Yingchun Fu; Xiuxiao Yuan
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Paper Abstract

As we all know, it is difficult and time-consuming to acquire and share multi-source geospatial information in grid computing environment, especially for the data of different geo-reference benchmark. Although middleware for data format transformation has been applied by many grid applications and GIS software systems, it remains difficult to on demand realize spatial data assembly jobs among various geo-reference benchmarks because of complex computation of rigorous coordinate transformation model. To address the problem, an efficient hierarchical quadtree structure referred as multi-level grids is designed and coded to express the multi-scale global geo-space. The geospatial objects located in a certain grid of multi-level grids may be expressed as an increment value which is relative to the grid central point and is constant in different geo-reference benchmark. A mediator responsible for geo-reference transformation function with multi-level grids has been developed and aligned with grid service. With help of the mediator, a map or query spatial data sets from individual source of different geo-references can be merged into an uniform composite result. Instead of complex data pre-processing prior to compatible spatial integration, the introduced method is adaptive to be integrated with grid-enable service.

Paper Details

Date Published: 4 January 2006
PDF: 4 pages
Proc. SPIE 5985, International Conference on Space Information Technology, 59851S (4 January 2006); doi: 10.1117/12.657354
Show Author Affiliations
Yingchun Fu, Wuhan Univ. (China)
Xiuxiao Yuan, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 5985:
International Conference on Space Information Technology
Cheng Wang; Shan Zhong; Xiulin Hu, Editor(s)

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