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1. (WO2007009016) SYSTEM FOR AND METHOD OF SECURING FINGERPRINT BIOMETRIC SYSTEMS AGAINST FAKE-FINGER SPOOFING

Pub. No.:    WO/2007/009016    International Application No.:    PCT/US2006/027134
Publication Date: Jan 18, 2007 International Filing Date: Jul 11, 2006
IPC: G06K 9/00
Applicants: ATRUA TECHNOLOGIES, INC.
RUSSO, Anthony
Inventors: RUSSO, Anthony
Title: SYSTEM FOR AND METHOD OF SECURING FINGERPRINT BIOMETRIC SYSTEMS AGAINST FAKE-FINGER SPOOFING
Abstract:
A biometric secured system 100 grants a user access to a host system by classifying a fingerprint used to verify or authorize the user to the system as real or fake. The classification is based on a probability that fingerprint image data corresponds to characteristics that reliably identify the finger as real. The system includes a fingerprint sensor (101) for capturing fingerprint image data coupled to a spoof detection module (130). In one embodiment, the spoof detection module is programmed to determine spoof probability based on a combination of metrics that include, among other metrics, pixel gray level average and the variance of pixels corresponding to a fingerprint ridge, pixel gray level average and the variance of pixels corresponding to a fingerprint valley, density of sweat pores, and density of sweat streaks, to name a few metrics.