System and method for determining if a fingerprint image contain

Details System and method for determining if a fingerprint image contain System and method for determining if a fingerprint image contain

1996-10-23

1999-12-21

Kelley, Christopher S.

Image analysis

Applications

Personnel identification

382115, 382116, 382125, 382127, 382195, 382199, 382228, 382256, 382289, G06K 900

Patent

active

06005963&

ABSTRACT:
A fingerprint image is divided into blocks of pixels. The blocks are determined to be within the foreground or background of the image. Each of the foreground blocks are assigned a block direction. If an image consists of the complete impression of the fingerprint, there should exist at least one path (ridge), composes of foreground blocks, which lies on both half planes of a coordinate system with an origin at the centroid of the foreground and that comes sufficiently close to the x axis once the path crosses to the second half plane of the coordinate system.

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