Fingerprint verification method

Details Fingerprint verification method Fingerprint verification method

1993-02-16

1993-11-09

Mancuso, Joseph

Image analysis

Histogram processing

For setting a threshold

382 30, 382 42, 382 48, G06K 900

Patent

active

052610080

ABSTRACT:
A method for verifying that a sample image of a fingerprint is that of a designated person through comparison of sample data, generated from the sample image, with master data, generated from a master image of the designated person's fingerprint. The master and sample image have been divided into a plurality of blocks, and each block has been divided into a plurality of block areas. Each block area has a number of pixels each having an associated direction as the sample and master data. The direction associated with each pixel was determined based on pixel density partial differentials between the pixel and adjacent pixels for a plurality of directions. The direction of the minimum pixel density partial differential for a pixel is chosen as the direction for that pixel. Based on the sample and master data fingerprint verification is determined by at least one of total dispersion, cross-correlation, and distance between classes.

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