Longest line method and apparatus for fingerprint alignment

Details Longest line method and apparatus for fingerprint alignment Longest line method and apparatus for fingerprint alignment

1996-01-11

1998-02-10

Boudreau, Leo

Image analysis

Applications

Personnel identification

G06K 980

Patent

active

057177775

ABSTRACT:
A non-minutia method and apparatus for comparing a reference fingerprint image to a candidate fingerprint image are disclosed. During enrollment of a reference image, a unique reference set of data is generated in a reference coordinate system by placing a group of line segments on the reference image. A collection of constraints is used for defining the subspace for each line of the reference group. A similar set of candidate line segments is constructed on the candidate fingerprint image in a candidate coordinate system. A candidate set of data is determined and then compared with the reference set of data using translation and rotation of the coordinate systems. Tolerances of the comparison are also provided for.

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patent: 5497429 (1996-03-01), Shibuya
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