DK1567057T3 - Detektering af levende finger ved hjælp af firepunktsmåling af kompleks impedans - Google Patents

Detektering af levende finger ved hjælp af firepunktsmåling af kompleks impedans

Info

Publication number
DK1567057T3
DK1567057T3 DK03812396T DK03812396T DK1567057T3 DK 1567057 T3 DK1567057 T3 DK 1567057T3 DK 03812396 T DK03812396 T DK 03812396T DK 03812396 T DK03812396 T DK 03812396T DK 1567057 T3 DK1567057 T3 DK 1567057T3
Authority
DK
Denmark
Prior art keywords
pickup
electrodes
live finger
current supply
complex impedance
Prior art date
Application number
DK03812396T
Other languages
English (en)
Inventor
Orjan G Martinsen
Jon Nysaether
Knut Riisnaes
Geir Mostad
Rune Pedersen
Nicolai W Christie
Sigmund Clausen
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
Application granted granted Critical
Publication of DK1567057T3 publication Critical patent/DK1567057T3/da

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531—Measuring skin impedance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A61B5/442—Evaluating skin mechanical properties, e.g. elasticity, hardness, texture, wrinkle assessment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6825—Hand
    • A61B5/6826—Finger
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6838—Clamps or clips
    • 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
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • 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
    • G06V40/40—Spoof detection, e.g. liveness detection

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dermatology (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Image Input (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Gloves (AREA)
  • Collating Specific Patterns (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
DK03812396T 2002-12-03 2003-12-03 Detektering af levende finger ved hjælp af firepunktsmåling af kompleks impedans DK1567057T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20025803A NO20025803D0 (no) 2002-12-03 2002-12-03 Levende finger
PCT/NO2003/000405 WO2004049942A1 (en) 2002-12-03 2003-12-03 Live finger detection by four-point measurement of complex impedance

Publications (1)

Publication Number Publication Date
DK1567057T3 true DK1567057T3 (da) 2009-11-23

Family

ID=19914250

Family Applications (1)

Application Number Title Priority Date Filing Date
DK03812396T DK1567057T3 (da) 2002-12-03 2003-12-03 Detektering af levende finger ved hjælp af firepunktsmåling af kompleks impedans

Country Status (13)

Country Link
US (2) US7848798B2 (da)
EP (1) EP1567057B1 (da)
JP (1) JP4528130B2 (da)
KR (1) KR20050074650A (da)
CN (1) CN100401980C (da)
AT (1) ATE442083T1 (da)
AU (1) AU2003302594A1 (da)
DE (1) DE60329218D1 (da)
DK (1) DK1567057T3 (da)
ES (1) ES2333119T3 (da)
HK (1) HK1087317A1 (da)
NO (2) NO20025803D0 (da)
WO (1) WO2004049942A1 (da)

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Also Published As

Publication number Publication date
DE60329218D1 (de) 2009-10-22
US20050281441A1 (en) 2005-12-22
EP1567057B1 (en) 2009-09-09
HK1087317A1 (da) 2006-10-13
CN1720001A (zh) 2006-01-11
ATE442083T1 (de) 2009-09-15
US20110074443A1 (en) 2011-03-31
US7848798B2 (en) 2010-12-07
JP2006508734A (ja) 2006-03-16
NO339828B1 (no) 2017-02-13
NO20025803D0 (no) 2002-12-03
CN100401980C (zh) 2008-07-16
JP4528130B2 (ja) 2010-08-18
WO2004049942A1 (en) 2004-06-17
US8195285B2 (en) 2012-06-05
NO20053222D0 (no) 2005-06-30
AU2003302594A1 (en) 2004-06-23
KR20050074650A (ko) 2005-07-18
ES2333119T3 (es) 2010-02-17
NO20053222L (no) 2005-06-30
EP1567057A1 (en) 2005-08-31

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