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System and method for compressing biometric models

  • US 6,580,814 B1
  • Filed: 07/31/1998
  • Issued: 06/17/2003
  • Est. Priority Date: 07/31/1998
  • Status: Expired due to Term
First Claim
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1. A system for compressing biometric models, comprising:

  • means for receiving and processing biometric data from a plurality of reference individuals to generate a reference biometric model for each of said plurality of reference individuals and from at least one user of said system to generate a temporary biometric model for said user;

    means for partitioning said plurality of reference biometric models into M subsets;

    means for computing a distance between said temporary biometric model and each of said reference biometric models in said M subsets and, for each of said M subsets, identifying the reference biometric model which is closest to said temporary biometric model based on said computed distances; and

    means for constructing a compressed biometric model for said user, wherein the compressed biometric model comprises a pattern of parameters, wherein the pattern of parameters comprises identity parameters corresponding to said closest reference models from said M subsets.

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