Image analysis – Histogram processing – For setting a threshold
Patent
1990-11-27
1992-04-14
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
582 2, 582 5, G06K 900
Patent
active
051054671
ABSTRACT:
A method of fingerprint verification includes determining a direction difference between a direction pattern of an input fingerprint and a direction pattern of a registered fingerprint and comparing the determined direction difference with predetermined upper and lower threshold values. The input and registered fingerprints are considered the same if the direction difference is lower than the lower threshold value, and the input and registered fingerprints are considered to be different if the direction difference is higher than the upper threshold value. If the direction different is between the upper and lower threshold values, minutiae of the input and registered fingerprints are extracted for verifying the input fingerprint. The extracting includes preprocessing of the input fingerprint image, uniboundary extraction of the input fingerprint minutiae, and restoration to eliminate pseudo-minutiae.
REFERENCES:
patent: 4151512 (1979-04-01), Riganati et al.
patent: 4696046 (1987-09-01), Schiller
patent: 4811414 (1989-03-01), Fishbine et al.
patent: 4817183 (1989-03-01), Sparrow
An Young K.
Choi Jung H.
Chung Ki H.
Hong Sun P.
Kang Nam C.
Couso Jose L.
Moore David K.
LandOfFree
Method of fingerprint verification does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of fingerprint verification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of fingerprint verification will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2355648