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Proceedings Paper

Research on the key technologies of mobile digital maps
Author(s): Cuiling Ji; Yongkang Xiao; Tianhe Chi
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Paper Abstract

Mobile and wireless technologies have evolved rapidly in recent years, especially the development of hardware devices, such as PDA and Smart phone. Different kinds of services and applications in these mobile devices, especially Mobile Geographic Information System and Location Based Service have been launched in recent years to help people to establish spatial relationship with the surroundings. Digital Map, which is a useful tool to assist a person for positioning and navigation, is usually included in these services. However, mobility of wireless devices, limited bandwidth of wireless networks, and limited storage capacity of mobile terminals seriously affect the performance of mobile digital maps and its application. In order to boom its application in mobile devices, this paper focuses on four important problems, i.e., data model optimization of mobile digital map, data organization and management at server side and client side respectively, data compression method, representation approaches on mobile terminals. In this paper, we adopt and modify the Europe transportation network standard GDF, accomplish effectively data compression with SVG, and present a new two-layer database structure to organize data. The digital maps can be expressed by multi-approaches, namely layers, districts and scales.

Paper Details

Date Published: 28 October 2006
PDF: 6 pages
Proc. SPIE 6418, Geoinformatics 2006: GNSS and Integrated Geospatial Applications, 64181B (28 October 2006); doi: 10.1117/12.712931
Show Author Affiliations
Cuiling Ji, Institute of Remote Sensing Applications (China)
Chinese Academy of Sciences (China)
Yongkang Xiao, Beijing Normal Univ. (China)
Tianhe Chi, Institute of Remote Sensing Applications (China)

Published in SPIE Proceedings Vol. 6418:
Geoinformatics 2006: GNSS and Integrated Geospatial Applications
Deren Li; Linyuan Xia, Editor(s)

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