GB2199174A - Identity verification - Google Patents

Identity verification

Info

Publication number
GB2199174A
GB2199174A GB08728971A GB8728971A GB2199174A GB 2199174 A GB2199174 A GB 2199174A GB 08728971 A GB08728971 A GB 08728971A GB 8728971 A GB8728971 A GB 8728971A GB 2199174 A GB2199174 A GB 2199174A
Authority
GB
United Kingdom
Prior art keywords
line
fingerprint
array
troughs
ridges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08728971A
Other versions
GB2199174B (en
GB8728971D0 (en
Inventor
Richard Wheatley
Malcolm Robert Henry Wheatley
Philip Anthony Stoten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IMAGEPACK Ltd
Original Assignee
IMAGEPACK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IMAGEPACK Ltd filed Critical IMAGEPACK Ltd
Publication of GB8728971D0 publication Critical patent/GB8728971D0/en
Publication of GB2199174A publication Critical patent/GB2199174A/en
Application granted granted Critical
Publication of GB2199174B publication Critical patent/GB2199174B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1347—Preprocessing; Feature extraction
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
    • G07C9/25—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition
    • G07C9/257—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder using biometric data, e.g. fingerprints, iris scans or voice recognition electronically

Abstract

A fingerprint verification technique involves the derivation of data from a fingerprint in the form of an ordered set of values relating to the number of ridges (or troughs) measured orthogonal to a line across an area of the fingerprint, at each of a plurality of positions along the line. The data is derived using a semiconductor imaging sensor (18) consisting of a two-dimensional array of image sensing elements. Each line of the imaging sensor is read out as a varying DC voltage which is compared with a reference value in thresholding circuitry (42). The digital signal produced by the thresholding circuitry is used to clock a counter (44) to obtain for each row of the array a count of the ridges (or troughs) in that row of the array.
GB8728971A 1986-04-19 1987-04-21 Identity verification Expired - Fee Related GB2199174B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868609620A GB8609620D0 (en) 1986-04-19 1986-04-19 Identity verification

Publications (3)

Publication Number Publication Date
GB8728971D0 GB8728971D0 (en) 1988-02-17
GB2199174A true GB2199174A (en) 1988-06-29
GB2199174B GB2199174B (en) 1990-01-04

Family

ID=10596511

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868609620A Pending GB8609620D0 (en) 1986-04-19 1986-04-19 Identity verification
GB8728971A Expired - Fee Related GB2199174B (en) 1986-04-19 1987-04-21 Identity verification

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868609620A Pending GB8609620D0 (en) 1986-04-19 1986-04-19 Identity verification

Country Status (11)

Country Link
EP (1) EP0266388A1 (en)
JP (1) JPS63503178A (en)
KR (1) KR880701415A (en)
AU (1) AU7287987A (en)
DK (1) DK668387D0 (en)
FI (1) FI875525A (en)
GB (2) GB8609620D0 (en)
HU (1) HUT46161A (en)
MC (1) MC1867A1 (en)
NO (1) NO875330L (en)
WO (1) WO1987006378A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8723299D0 (en) * 1987-10-05 1987-11-11 Imagepack Ltd Identity verification
DE68905237T2 (en) * 1988-05-24 1993-07-29 Nec Corp METHOD AND DEVICE FOR COMPARING FINGERPRINTS.
US5245329A (en) * 1989-02-27 1993-09-14 Security People Inc. Access control system with mechanical keys which store data
US5337043A (en) * 1989-04-27 1994-08-09 Security People, Inc. Access control system with mechanical keys which store data
JPH0471079A (en) * 1990-07-12 1992-03-05 Takayama:Kk Positioning method for image
EP0470530B1 (en) * 1990-08-07 1997-01-22 Yozan Inc. Fingerprint verification method
US5261008A (en) * 1990-08-07 1993-11-09 Yozan, Inc. Fingerprint verification method
EP0521507A3 (en) * 1991-07-04 1993-12-15 Ezel Inc Fingerprint data processing method
ATE325392T1 (en) * 1999-08-10 2006-06-15 Univ Nanyang FINGERPRINT RECOGNITION DEVICE
IT1319046B1 (en) * 2000-10-18 2003-09-23 Ohg F Lli Manea S R L PAYMENT SYSTEM FOR AUTOMATIC DISTRIBUTING MACHINES
AU2003254280A1 (en) * 2002-08-02 2004-02-23 Cross Match Technologies, Inc. System and method for counting ridges in a captured print image
JP5480137B2 (en) * 2007-07-31 2014-04-23 インターナショナル・ビジネス・マシーンズ・コーポレーション Biometric authentication device, portable electronic device, and biometric authentication method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186378A (en) * 1977-07-21 1980-01-29 Palmguard Inc. Identification system
GB2050026A (en) * 1979-04-02 1980-12-31 Nippon Electric Co Device for extracting a density as one of a number of pattern features extracted for each feature point of a streaked pattern
US4246568A (en) * 1978-12-08 1981-01-20 Peterson Vernon L Apparatus and method of personal identification by fingerprint comparison
EP0159037A2 (en) * 1984-04-18 1985-10-23 Nec Corporation Identification system employing verification of fingerprints
EP0169496A2 (en) * 1984-07-18 1986-01-29 Nec Corporation Image input device for processing a fingerprint prior to identification

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE425704B (en) * 1981-03-18 1982-10-25 Loefberg Bo DATABERARE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186378A (en) * 1977-07-21 1980-01-29 Palmguard Inc. Identification system
US4246568A (en) * 1978-12-08 1981-01-20 Peterson Vernon L Apparatus and method of personal identification by fingerprint comparison
GB2050026A (en) * 1979-04-02 1980-12-31 Nippon Electric Co Device for extracting a density as one of a number of pattern features extracted for each feature point of a streaked pattern
EP0159037A2 (en) * 1984-04-18 1985-10-23 Nec Corporation Identification system employing verification of fingerprints
EP0169496A2 (en) * 1984-07-18 1986-01-29 Nec Corporation Image input device for processing a fingerprint prior to identification

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, VOLUME 18, NO. 3, AUGUST 1975, PAGES 888, 889 *
WO A 82/03286 *

Also Published As

Publication number Publication date
WO1987006378A1 (en) 1987-10-22
GB2199174B (en) 1990-01-04
MC1867A1 (en) 1988-12-19
FI875525A0 (en) 1987-12-16
KR880701415A (en) 1988-07-27
AU7287987A (en) 1987-11-09
NO875330D0 (en) 1987-12-18
EP0266388A1 (en) 1988-05-11
DK668387A (en) 1987-12-18
DK668387D0 (en) 1987-12-18
FI875525A (en) 1987-12-16
JPS63503178A (en) 1988-11-17
NO875330L (en) 1988-02-15
GB8609620D0 (en) 1986-05-21
HUT46161A (en) 1988-09-28
GB8728971D0 (en) 1988-02-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee