Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22247
Title: Geo-Planar Indexing (GPI) - an efficient indexing scheme for fast retrieval of raster-based geospatial data in mobile GIS applications
Authors: Shea, GYK 
Cao, J 
Keywords: Dynamic mobile geospatial database
Geo-planar indexing
GPI
Mobile GIS
Issue Date: 2012
Source: 2012 5th International Congress on Image and Signal Processing, CISP 2012, 2012, 6469774, p. 1047-1052 How to cite?
Abstract: The core objective of mobile GIS applications is to provide current vicinity geospatial information for moving clients. The success of a mobile GIS application depends mainly on the efficiency of the geospatial data delivery method used and how well the base map image can be retrieved from the geospatial database. This paper describes the derivation of an efficient indexing scheme, Geo-Planar Indexing (GPI), for fast retrieval of raster-based geospatial data under the standard RDBMS environment without using expensive R-Tree spatial access method in GIS working environments. A cost model comparison between R-Tree and GPI is conducted. A performance comparison between R-Tree and GPI was carried out to measure the retrieval times for different test locations and retrieval strategies. The empirical test result revealed that the GPI method outperforms the R-Tree access method when handling different geospatial data densities, irrespective of the mobile device platform. The performance efficiency for high, medium, and low data density was 1.3, 1.9, and 4.3, respectively.
Description: 2012 5th International Congress on Image and Signal Processing, CISP 2012, Chongqing, 16-18 October 2012
URI: http://hdl.handle.net/10397/22247
ISBN: 9781467309622
DOI: 10.1109/CISP.2012.6469774
Appears in Collections:Conference Paper

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