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Method and system for wavelet-based representation and use of cartographic data

  • US 7,987,186 B1
  • Filed: 11/06/2000
  • Issued: 07/26/2011
  • Est. Priority Date: 11/06/2000
  • Status: Active Grant
First Claim
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1. A method for representing cartographic data in a computer-based system, comprising:

  • providing a cartographic database containing a sequence of latitude and longitude data points indicating locations along a geographic feature, wherein the sequence of latitude and longitude data points provide a data point representation of the geographic feature;

    using the latitude and longitude data points to generate a parameterized function representing the geographic feature;

    computing a plurality of wavelet coefficients from said parameterized function representing the geographic feature, wherein said wavelet coefficients obtained with a wavelet, wherein said wavelet being one of a family of functions having a form

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