System and method for identifying an organism

Details System and method for identifying an organism System and method for identifying an organism

1998-02-26

2000-11-07

Au, Amelia

Image analysis

Applications

Personnel identification

382116, 34082534, G06K 900

Patent

active

061447579

ABSTRACT:
An organism identification system that can identify whether or not a fingerprint image input object is a living body at a fingerprint collating time. A finger collator slides his finger at the time of inputting a fingerprint image. Meanwhile the finger is contact with bioelectric potential lead-out portions and a bioelectric potential grounding portion. Sliding of the finger causes a variation in the muscle potential of the finger. The bioelectric potential lead-out portions and the bioelectric potential grounding portion output electric signals corresponding to the potential variation to a bioelectric signal amplification section. The bioelectric signal amplification section amplifies the difference between electric signals from the bioelectric potential lead-out portions while the bioelectric potential grounding portion is at the ground potential. A signal peculiar to a living body is generated by sliding the finger. When an illegal person slides a replica, a variationless signal occurs. The bioelectric signal identification section identifies a living body based on differences in the signals.

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patent: 5864296 (1999-01-01), Upton
patent: 5887140 (1999-03-01), Itsumi et al.

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