Gray scale matcher

Details Gray scale matcher Gray scale matcher

2004-06-22

2008-11-11

Ahmed, Samir A (Department: 2624)

Image analysis

Applications

Personnel identification

C382S115000, C382S125000

Reexamination Certificate

active

07450741

ABSTRACT:
A method for comparing a first print image having a first set of minutiae to a second print image having a second set of minutiae, wherein at least a second subset of minutiae from the second set is mated to a first subset of minutiae from the first set, the method that includes the steps of: selecting (350) a first pair of minutiae from the first subset and a second pair of corresponding mated minutiae from the second subset; generating (350) a first segment based on the first pair of minutiae and a second segment based on the second pair of minutiae; generating (360) a first cross-section profile based on the first segment and a second cross-section profile based on the second segment; and computing (365) at least one similarity measure that is indicative of the similarity between the first cross-section profile and the second cross-section profile.

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Ratha, Karu, Chen, and Jain, “A Real-Time Matching System for Large Fingerprint Databases,” Aug. 1996 IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 18, No. 8, pp. 801-808.

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