Calibration and correction in a fingerprint scanner

Details Calibration and correction in a fingerprint scanner Calibration and correction in a fingerprint scanner

2006-03-07

2006-03-07

Ahmed, Samir (Department: 2623)

Image analysis

Applications

Personnel identification

C382S169000, C382S274000

Reexamination Certificate

active

07010148

ABSTRACT:
A calibration and correction procedure for a fingerprint scanner. The calibration and correction procedure performs an automatic calibration procedure and gray level linearity procedure. The automatic calibration procedure includes a brightness function to correct for distortions in brightness, a focus check function to identify when the fingerprint scanner is out of focus, and a geometric distortion function to correct for imperfect linearity in the geometry of the fingerprint scanner. The gray level linearity procedure corrects for linear distortions in brightness and contrast of gray levels.

REFERENCES:
patent: 2500017 (1950-03-01), Altman
patent: 3200701 (1965-08-01), White
patent: 3482498 (1969-12-01), Becker
patent: 3527535 (1970-09-01), Monroe
patent: 3617120 (1971-11-01), Roka
patent: 3699519 (1972-10-01), Campbell
patent: 3947128 (1976-03-01), Weinberger et al.
patent: 3968476 (1976-07-01), McMahon
patent: 4032975 (1977-06-01), Malueg et al.
patent: 4063226 (1977-12-01), Kozma et al.
patent: 4210899 (1980-07-01), Swonger et al.
patent: 4253086 (1981-02-01), Szwarcbier
patent: 4414684 (1983-11-01), Blonder
patent: 4537484 (1985-08-01), Fowler et al.
patent: 4544267 (1985-10-01), Schiller
patent: 4601195 (1986-07-01), Garritano
patent: 4669487 (1987-06-01), Frieling
patent: 4681435 (1987-07-01), Kubota et al.
patent: 4783823 (1988-11-01), Tasaki et al.
patent: 4784484 (1988-11-01), Jensen
patent: 4792226 (1988-12-01), Fishbine et al.
patent: 4811414 (1989-03-01), Fishbine et al.
patent: 4876726 (1989-10-01), Capello et al.
patent: 4905293 (1990-02-01), Asai et al.
patent: 4924085 (1990-05-01), Kato et al.
patent: 4933976 (1990-06-01), Fishbine et al.
patent: 4942482 (1990-07-01), Kakinuma et al.
patent: 4995086 (1991-02-01), Lilley et al.
patent: 5054090 (1991-10-01), Knight et al.
patent: 5067162 (1991-11-01), Driscoll, Jr. et al.
patent: 5067749 (1991-11-01), Land
patent: 5131038 (1992-07-01), Puhl et al.
patent: 5146102 (1992-09-01), Higuchi et al.
patent: 5185673 (1993-02-01), Sobol
patent: 5187747 (1993-02-01), Capello et al.
patent: 5222152 (1993-06-01), Fishbine et al.
patent: 5230025 (1993-07-01), Fishbine et al.
patent: 5233404 (1993-08-01), Lougheed et al.
patent: 5249370 (1993-10-01), Stanger et al.
patent: 5253085 (1993-10-01), Maruo et al.
patent: 5291318 (1994-03-01), Genovese
patent: D348445 (1994-07-01), Fishbine et al.
patent: D351144 (1994-10-01), Fishbine et al.
patent: 5363318 (1994-11-01), McCauley
patent: 5384621 (1995-01-01), Hatch et al.
patent: 5412463 (1995-05-01), Sibbald et al.
patent: 5416573 (1995-05-01), Sartor, Jr.
patent: 5467403 (1995-11-01), Fishbine et al.
patent: 5469506 (1995-11-01), Berson et al.
patent: 5473144 (1995-12-01), Mathurin, Jr.
patent: 5483601 (1996-01-01), Faulkner
patent: 5509083 (1996-04-01), Abtahi et al.
patent: 5517528 (1996-05-01), Johnson
patent: 5528355 (1996-06-01), Maase et al.
patent: 5548394 (1996-08-01), Giles et al.
patent: 5591949 (1997-01-01), Bernstein
patent: 5596454 (1997-01-01), Hebert
patent: 5598474 (1997-01-01), Johnson
patent: 5613014 (1997-03-01), Eshera et al.
patent: 5615277 (1997-03-01), Hoffman
patent: 5625448 (1997-04-01), Ranalli et al.
patent: 5640422 (1997-06-01), Johnson
patent: 5649128 (1997-07-01), Hartley
patent: 5650842 (1997-07-01), Maase et al.
patent: 5661451 (1997-08-01), Pollag
patent: 5680205 (1997-10-01), Borza
patent: 5689529 (1997-11-01), Johnson
patent: 5717777 (1998-02-01), Wong et al.
patent: 5745684 (1998-04-01), Oskouy et al.
patent: 5748766 (1998-05-01), Maase et al.
patent: 5748768 (1998-05-01), Sivers et al.
patent: 5755748 (1998-05-01), Borza
patent: 5757278 (1998-05-01), Itsumi
patent: 5767989 (1998-06-01), Sakaguchi
patent: 5778089 (1998-07-01), Borza
patent: 5781647 (1998-07-01), Fishbine et al.
patent: 5793218 (1998-08-01), Oster et al.
patent: 5805777 (1998-09-01), Kuchta
patent: 5809172 (1998-09-01), Melen
patent: 5812067 (1998-09-01), Bergholz et al.
patent: 5815252 (1998-09-01), Price-Francis
patent: 5818956 (1998-10-01), Tuli
patent: 5822445 (1998-10-01), Wong
patent: 5825005 (1998-10-01), Behnke
patent: 5825474 (1998-10-01), Maase
patent: 5828773 (1998-10-01), Setlak et al.
patent: 5832244 (1998-11-01), Jolley et al.
patent: 5848231 (1998-12-01), Teitelbaum et al.
patent: 5859420 (1999-01-01), Borza
patent: 5859710 (1999-01-01), Hannah
patent: 5862247 (1999-01-01), Fisun et al.
patent: 5867802 (1999-02-01), Borza
patent: 5869822 (1999-02-01), Meadows, II et al.
patent: 5872834 (1999-02-01), Teitelbaum
patent: 5900993 (1999-05-01), Betensky
patent: 5907627 (1999-05-01), Borza
patent: 5920384 (1999-07-01), Borza
patent: 5920640 (1999-07-01), Salatino et al.
patent: 5928347 (1999-07-01), Jones
patent: 5960100 (1999-09-01), Hargrove
patent: 5960125 (1999-09-01), Michael et al.
patent: 5973731 (1999-10-01), Schwab
patent: 5974162 (1999-10-01), Metz et al.
patent: 5987155 (1999-11-01), Dunn et al.
patent: 5991467 (1999-11-01), Kamiko
patent: 5995014 (1999-11-01), DiMaria
patent: 6018739 (2000-01-01), McCoy et al.
patent: 6023522 (2000-02-01), Draganoff et al.
patent: 6041372 (2000-03-01), Hart et al.
patent: 6055071 (2000-04-01), Kuwata et al.
patent: 6064753 (2000-05-01), Bolle et al.
patent: 6064779 (2000-05-01), Neukermans et al.
patent: 6072891 (2000-06-01), Hamid et al.
patent: 6075876 (2000-06-01), Draganoff
patent: 6078265 (2000-06-01), Bonder et al.
patent: 6088585 (2000-07-01), Schmitt et al.
patent: 6104809 (2000-08-01), Berson et al.
patent: 6122394 (2000-09-01), Neukermans et al.
patent: 6137893 (2000-10-01), Michael et al.
patent: 6178255 (2001-01-01), Scott et al.
patent: 6195447 (2001-02-01), Ross
patent: 6198836 (2001-03-01), Hauke
patent: 6272562 (2001-08-01), Scott et al.
patent: 6281931 (2001-08-01), Tsao et al.
patent: 6327047 (2001-12-01), Motamed
patent: 6347163 (2002-02-01), Roustaei
patent: 0 101 772 (1984-03-01), None
patent: 0 308 162 (1989-03-01), None
patent: 0 379 333 (1990-07-01), None
patent: 0 623 890 (1994-11-01), None
patent: 0 379 333 (1995-07-01), None
patent: 0 889 432 (1999-01-01), None
patent: 0 905 646 (1999-03-01), None
patent: 0 924 656 (1999-06-01), None
patent: 2 089 545 (1982-06-01), None
patent: 2 313 441 (1997-11-01), None
patent: WO 87/02491 (1987-04-01), None
patent: WO 90/03620 (1990-04-01), None
patent: WO 92/11608 (1992-07-01), None
patent: WO 94/22371 (1994-10-01), None
patent: WO 96/17480 (1996-06-01), None
patent: WO 97/29477 (1997-08-01), None
patent: WO 97/41528 (1997-11-01), None
patent: WO 98/09246 (1998-03-01), None
patent: WO 98/12670 (1998-03-01), None
patent: WO 99/12123 (1999-03-01), None
patent: WO 99/26187 (1999-05-01), None
patent: WO 99/40535 (1999-08-01), None
Btt (Biometric Technology Today), Finger technologies contacts, 2 pages.
Drake, M.D. et al., “Waveguide hologram fingerprint entry device.”Optical Engineering,vol. 35, No. 9, Sep. 1996, pp. 2499-2505.
Roethenbaugh, G. (ed.),Biometrics Explained,1998, ICSA, pp. 1-34.
Automated Identification Systems(visited May 20, 1999) <http://www.trw.com/idsystems/bldgaccess2.html>, 1 page, Copyright 1999.
Ultra-Scan Corporation Home Page(visited May 20, 1999) <http://www.ultra-scan.com/index.htm>, 3 pages. (discusses technology as early as 1996).
Profile(last updated Aug. 16, 1998) <http://www.dermalog.de/Britain/Profile/profile.htm>, 3 pages. (discusses technology as early as 1990).
ID-Card System Technical Specifications(last updated Jul. 18, 1998) <http://dermalog.de/Britain/Products/ID-Card/idcard2.htm>, 2 pages.
Fujitsu Limited Products and Services(updated Apr. 21, 1999) <http://www.fujitsu.co.jp/hypertext/Products/index-e.html>, 3 pages, Copyright 1995-1999.
SonyDCam(visited May 20, 1999) <http://www.microsoft.com/DDK/ddkdocs/Win2k/sonydcam.htm>, 3 pages, Copyright 1999.
Verid Fingerprint Verification(visited May 17, 1999) <http://www.tssi.co.uk/products/finger.html>, 2 pages.
Startek's Fingerprint Verification Products: Fingerguard FG-40(visited May 18, 1999) <http://www.startek.com.tw/product/fg40/fg40.html>, 3 pages.
SAC Technologies Showcases Sta

Affiliated with

Also associated with

Rating

Calibration and correction in a fingerprint scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Calibration and correction in a fingerprint scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calibration and correction in a fingerprint scanner will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3535592