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DEM compression based on integer wavelet transform

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Geo-spatial Information Science

Abstract

DEM data is an important component of spatial database in GIS. The data volume is so huge that compression is necessary. Wavelet transform has many advantages and has become a trend in data compression. Considering the simplicity and high efficiency of the compression system, integer wavelet transform is applied to DEM and a simple coding algorithm with high efficiency is introduced. Experiments on a variety of DEM are carried out and some useful rules are presented at the end of this paper.

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Authors and Affiliations

  1. Department of Surveying and Mapping Engineering, College of Civil Engineering, Hohai University, 1 Xikang Road, Nanjing, 210098, China

    Chen Renxi

Authors
  1. Chen Renxi
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  2. Li Xinhui
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Chen, R., Li, X. DEM compression based on integer wavelet transform. Geo-spat. Inf. Sc. 10, 133–136 (2007). https://doi.org/10.1007/s11806-007-0038-8

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  • DOI: https://doi.org/10.1007/s11806-007-0038-8

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