NO20003002L - Hastighetsberegning av fingeravtrykksmåling ved hjelp av flankemåling - Google Patents

Hastighetsberegning av fingeravtrykksmåling ved hjelp av flankemåling

Info

Publication number
NO20003002L
NO20003002L NO20003002A NO20003002A NO20003002L NO 20003002 L NO20003002 L NO 20003002L NO 20003002 A NO20003002 A NO 20003002A NO 20003002 A NO20003002 A NO 20003002A NO 20003002 L NO20003002 L NO 20003002L
Authority
NO
Norway
Prior art keywords
measurement
sensors
flank
speed calculation
fingerprint
Prior art date
Application number
NO20003002A
Other languages
English (en)
Other versions
NO20003002D0 (no
Inventor
Stig Mathiassen
Svein Mathiassen
Original Assignee
Idex Asa
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 Idex Asa filed Critical Idex Asa
Priority to NO20003002A priority Critical patent/NO20003002L/no
Publication of NO20003002D0 publication Critical patent/NO20003002D0/no
Priority to AU2001264433A priority patent/AU2001264433A1/en
Priority to PCT/NO2001/000242 priority patent/WO2001094966A2/en
Publication of NO20003002L publication Critical patent/NO20003002L/no

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V40/1335—Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Image Input (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

Denne oppfinnelsen angår en fremgangsmåte for bestemmelse av hastigheten til en overflatestruktur, særlig på et fingeroverflate, som beveger seg relativt til to i bevegelsesretningen plasserte sensorer, hvilke sensorer har en forutbestemt innbyrdes avstand og der sensorene måler variasjon i en forutbestemt egenskap ved overflatestrukturen. Fremgangsmåten er kjennetegnet ved gjentatte målinger av fingeroverflatens egenskaper og deteksjon av posisjonen til en forutbestemt verdi langs tidsaksen for hver sensor, og basert på disse posisjonene i tillegg til den kjente avstanden mellom sensorene beregning av overflatens hastighet i forhold til sensorene.
NO20003002A 2000-06-09 2000-06-09 Hastighetsberegning av fingeravtrykksmåling ved hjelp av flankemåling NO20003002L (no)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO20003002A NO20003002L (no) 2000-06-09 2000-06-09 Hastighetsberegning av fingeravtrykksmåling ved hjelp av flankemåling
AU2001264433A AU2001264433A1 (en) 2000-06-09 2001-06-08 Velocity measurement - flank shift
PCT/NO2001/000242 WO2001094966A2 (en) 2000-06-09 2001-06-08 Velocity measurement for a moving finger, when detecting fingerprints. velocity is determined by analysing flank shifts.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20003002A NO20003002L (no) 2000-06-09 2000-06-09 Hastighetsberegning av fingeravtrykksmåling ved hjelp av flankemåling

Publications (2)

Publication Number Publication Date
NO20003002D0 NO20003002D0 (no) 2000-06-09
NO20003002L true NO20003002L (no) 2001-12-10

Family

ID=19911248

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20003002A NO20003002L (no) 2000-06-09 2000-06-09 Hastighetsberegning av fingeravtrykksmåling ved hjelp av flankemåling

Country Status (3)

Country Link
AU (1) AU2001264433A1 (no)
NO (1) NO20003002L (no)
WO (1) WO2001094966A2 (no)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7190251B2 (en) 1999-05-25 2007-03-13 Varatouch Technology Incorporated Variable resistance devices and methods
US7474772B2 (en) 2003-06-25 2009-01-06 Atrua Technologies, Inc. System and method for a miniature user input device
US7587072B2 (en) 2003-08-22 2009-09-08 Authentec, Inc. System for and method of generating rotational inputs
US7697729B2 (en) 2004-01-29 2010-04-13 Authentec, Inc. System for and method of finger initiated actions
US7831070B1 (en) 2005-02-18 2010-11-09 Authentec, Inc. Dynamic finger detection mechanism for a fingerprint sensor
US8231056B2 (en) 2005-04-08 2012-07-31 Authentec, Inc. System for and method of protecting an integrated circuit from over currents
WO2007097979A2 (en) 2006-02-10 2007-08-30 Atrua Technologies, Inc. Systems using variable resistance zones and stops for generating inputs to an electronic device
US9235274B1 (en) 2006-07-25 2016-01-12 Apple Inc. Low-profile or ultra-thin navigation pointing or haptic feedback device
US8866347B2 (en) 2010-01-15 2014-10-21 Idex Asa Biometric image sensing
US8421890B2 (en) 2010-01-15 2013-04-16 Picofield Technologies, Inc. Electronic imager using an impedance sensor grid array and method of making
CN109407862B (zh) 2012-04-10 2022-03-11 傲迪司威生物识别公司 生物计量感测
GB2540616B (en) * 2015-07-24 2019-09-18 Keymed Medical & Ind Equipment Ltd Method and apparatus for inspection of moving parts in rotary systems
CN119104302B (zh) * 2024-08-01 2026-05-12 中国铁建重工集团股份有限公司 主轴承滚道损伤监测系统及采用其的掘进机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW303441B (no) * 1995-03-29 1997-04-21 Trw Inc
NO307065B1 (no) * 1998-02-26 2000-01-31 Idex As Fingeravtrykksensor

Also Published As

Publication number Publication date
WO2001094966A3 (en) 2002-05-02
NO20003002D0 (no) 2000-06-09
AU2001264433A1 (en) 2001-12-17
WO2001094966A2 (en) 2001-12-13

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Legal Events

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FC2A Withdrawal, rejection or dismissal of laid open patent application