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Proceedings Paper

NDF: an effective mobile GIS physical storage model
Author(s): Kai Li; Ershun Zhong; Guanfu Song; Guofeng Cao; Lili Zhang; Qian Wu
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Paper Abstract

Real-time mobile GIS applications, e.g. car navigation, need effective spatial data storage model fit for the mobile compute environment. Therefore, Physical Storage Format (PSF) is an important technical bottleneck of some real-time requirement such as map browsing, route planning, driver guidance, point of interesting (POI) search and 3D visualization. This paper proposes a new storage model based on mobile navigation application, named as Navigation Data Format (NDF). The NDF adopt multi-level model to organize spatial data (e.g. map of background) that has notable effect to reduce the memory cost of map browsing. The road network data of NDF is built based upon hierarchical topological structure which can support the speed-up way finding algorithm. The page frameworks of the NDF compared with current PSF, have introduced some new features. Firstly, NDF has good adaptability to various kinds of mobile computer environment. Secondly it provides facility for incremental update. Further, the NDF has been adopted as candidate national standard of China.

Paper Details

Date Published: 7 August 2007
PDF: 9 pages
Proc. SPIE 6754, Geoinformatics 2007: Geospatial Information Technology and Applications, 67541W (7 August 2007); doi: 10.1117/12.764932
Show Author Affiliations
Kai Li, Institute of Geographical Sciences and Natural Resources Research (China)
Ershun Zhong, Institute of Geographical Sciences and Natural Resources Research (China)
Guanfu Song, Institute of Geographical Sciences and Natural Resources Research (China)
Guofeng Cao, Institute of Geographical Sciences and Natural Resources Research (China)
Lili Zhang, Institute of Geographical Sciences and Natural Resources Research (China)
Qian Wu, Beijing Landview Mapping Information Technology Co., Ltd. (China)


Published in SPIE Proceedings Vol. 6754:
Geoinformatics 2007: Geospatial Information Technology and Applications

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