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SYSTEM AND METHOD FOR EXTRACTING TWO-DIMENSIONAL FINGERPRINTS FROM HIGH RESOLUTION THREE-DIMENSIONAL SURFACE DATA OBTAINED FROM CONTACTLESS, STAND-OFF SENSORS

  • US 20160180142A1
  • Filed: 12/17/2014
  • Published: 06/23/2016
  • Est. Priority Date: 12/17/2014
  • Status: Active Grant
First Claim
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1. A system for extracting two-dimensional fingerprints from high resolution three-dimensional surface data obtained from contactless, stand-off sensors, comprising:

  • a three-dimensional sensor that generates three-dimensional surface data of a hand and one or more fingers of a subject;

    a processor, coupled to the three-dimensional sensor, and a memory associated with the processor, wherein the processor executes instructions stored in the memory to extract two-dimensional fingerprints from high resolution three-dimensional surface data by;

    collecting three-dimensional surface data of the subject hand and one or more subject fingers generated by the three-dimensional sensor;

    estimating a hand pose of the subject based on the collected three-dimensional surface data;

    based on the estimated hand pose, extracting fingerprint information from the collected three-dimensional surface data;

    unrolling one or more two-dimensional fingerprints from the extracted fingerprint information;

    determining a fingerprint quality score for each of the one or more two-dimensional fingerprints; and

    for each of the one or more two-dimensional fingerprints that have a sufficiently high determined fingerprint quality score, storing the two-dimensional fingerprint.

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