Biometric identification of individuals by use of subcutaneous vein patterns
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United States of America Patent
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Jul 28, 1998
Grant Date -
N/A
app pub date -
Sep 29, 1995
filing date -
Apr 1, 1993
priority date (Note) -
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Abstract
A method of verifying the identity of an individual comprises capturing an image of the subcutaneous vein pattern at a predetermined region of the individual, converting the captured image to a plurality of stored values representative of the intensity of said image at specified relative locations, processing the stored values to produce a second plurality of stored values representative of the image of the vein pattern having enhanced contrast and subjecting the second plurality of stored values to a thresholding process to select those above a predetermined value and storing a set of measurements derived from the selected ones of said second plurality of stored values for comparison with a corresponding set of measurements made on the individual.
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