Biometric identification system using pulse waveform

摘要

A method and system for biometric identity confirmation is based on the pulse wave of a subject. During an initial enrollment mode, pulse wave data for a known subject are used to generate subject characterization data for the known subject. During a subsequent operational mode, pulse wave data for a test subject are analyzed using the subject characterization data to confirm whether the identity of the test subject matches the known subject. The subject characterization data can be a probability density in a phase space in which at least two quasi-periodic variables based on the pulse wave (e.g., blood pressure and volume time-series data) are correlated.

主权项

1. A method for biometric identity confirmation of a subject having a pulse, said method comprising:
initially acquiring and analyzing pulse waveform data for a known subject to generate subject characterization data identifying the known subject, wherein the subject characterization data is a probability density in a phase space in which a first quasi-periodic variable based on the pulse waveform is correlated with at least a second quasi-periodic variable based on the pulse waveform; and during a subsequent operational mode, acquiring and analyzing pulse waveform data for a test subject to confirm whether the identity of the test subject matches the known subject based on the probability values associated with the pulse waveform data for the test subject.