System for biometric identity confirmation

摘要

A biometric identity confirmation system is based on both pulse wave data and spirometric data for the subject. During an initial enrollment mode, pulse wave and spirometric data for a known subject are used to generate subject characterization data for the known subject. During a subsequent identity authentication mode, pulse wave and spirometric 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.

主权项

1. A method for biometric identity confirmation of a subject having a pulse and a respiratory cycle, said method comprising:
during an initial training mode, simultaneously acquiring pulse wave shape data and spirometric data from a known subject; generating and storing subject characterization data for the known subject derived at least in part from both the pulse wave shape data and spirometric data for the known subject; and during a subsequent identity authentication mode, simultaneously acquiring pulse wave shape data and spirometric data from a test subject, and analyzing the pulse wave shape data and spirometric data with the subject characterization data for the known subject to confirm whether the identity of the test subject matches the known subject; wherein the step of generating subject characterization data further comprises use of a second derivative of the pulse wave shape data with respect to time to identify pulse cycle start points for synchronous averaging of multiple pulse cycles to create an exemplar for the known subject.