Fingerprint image refinement

Details Fingerprint image refinement Fingerprint image refinement

G - Physics

06

K

354/58

G06K 9/00 (2006.01) A61B 5/117 (2006.01)

Patent

CA 1187997

-13- Abstract Of The Disclosure In an optical fingerprint image processing apparatus a light beam is scanned across a finger placed against a transparent platen in order to provide a re- flected modulated light beam carrying fingerprint in- formation. The modulated light beam is imaged and the image is intercepted by an array of photo receptors that detect the image and convert the optical signal into electrical signals. The improvement is in placing a diffuser element, which may be a ground glass wafer, in the interrogating light beam. The diffusion of the light beam acts as an effective filter to eliminate the higher spatial frequency components of the optical image and thus provide a fingerprint image having improved continuity.

431624

Affiliated with

Also associated with

Rating

Fingerprint image refinement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fingerprint image refinement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fingerprint image refinement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1288031