Image analysis – Histogram processing – For setting a threshold
Patent
1985-12-23
1989-02-14
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 30, 34082531, 34082534, G06K 900
Patent
active
048052221
ABSTRACT:
A device and method for verifying the identity of an individual based on keystroke dynamics comprising a keyboard for the inputting of data in the form of alphanumeric characters by keystrokes, a timing encoder coupled to the keyboard for timing periods between keystrokes, a CPU coupled to RAM and to the timing encoder for generating a template for the individual, the template comprising a first plurality of features based upon a first set of time periods between keystrokes from a first set of keystrokes of the individual and the CPU determining a plurality of extracted features based upon a second set of time periods from a second set of keystrokes, and comparing the template to the plurality of extracted features such that the identity of the individual may be verified.
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Kullback, Solomon, Information Theory & Statistics, John Wiley & Sons Inc., pp. 3383, 1959.
Hammon Robert W.
Young James R.
Boudreau Leo H.
Couso Jose L.
International Bioaccess Systems Corporation
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