WO2015075680A1 - Procédé de prise d'empreintes digitales - Google Patents

Procédé de prise d'empreintes digitales Download PDF

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Publication number
WO2015075680A1
WO2015075680A1 PCT/IB2014/066227 IB2014066227W WO2015075680A1 WO 2015075680 A1 WO2015075680 A1 WO 2015075680A1 IB 2014066227 W IB2014066227 W IB 2014066227W WO 2015075680 A1 WO2015075680 A1 WO 2015075680A1
Authority
WO
WIPO (PCT)
Prior art keywords
person
fingerprints
fingers
pair
right hand
Prior art date
Application number
PCT/IB2014/066227
Other languages
English (en)
Inventor
Marius COETZEE
Original Assignee
Ideco Boimetric Security Solutions (Pty) 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 Ideco Boimetric Security Solutions (Pty) Ltd filed Critical Ideco Boimetric Security Solutions (Pty) Ltd
Publication of WO2015075680A1 publication Critical patent/WO2015075680A1/fr

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Classifications

    • 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

Definitions

  • This invention relates to a method of taking biometric data.
  • this invention relates to a method of taking fingerprints in accordance with the 4-4-2 protocol.
  • Biometrics is playing an ever-increasing rote in identity management with the advancement in technology in the digital age.
  • Identity management is part of all aspects of a person's life. For example, employment, health, marital and criminal data are all linked to one's Identity.
  • Identity management is however not limited to personal records as it is also crucial in securing physical facilities, computers and networks. From the above examples it should be dear that identity control is a significant part of Identity management, and is applied in a wide range of applications, including national identification, licensing, health care, travel security, finance and access control in both the private and corporate sectors.
  • Identity management relies on solutions that can accurately and consistently recognise and confirm the identity of an individual.
  • a unique link between an individual and his/her unique identifier such as a blometric characteristic.
  • a bfometric characteristic that is widely used in identity management is the fingerprint
  • the uniqueness and permanence of a person's fingerprints allow for the un-repudiable electronic identification of an individual, which is the key principle in identity management.
  • the positions where the raised ridges on a fingerprint either split or end are unique.
  • Advanced fingerprint scanners are able to recognise these points consistently and accurately, and assign a reference point to them. These reference points are referred to as mlnutia points.
  • the information on the reference points is recorded by the fingerprint scanner and stored as an algorithm or a piece of mathematical code known as the template.
  • False rejection which is when a person gets rejected (i.e. not identified) when they should have been identified, is another problem that is encountered with fingerprint scanners. This typically occurs when the required number of matching minutia points is set too high or the blometric scanner simply fails.
  • Verification which is also known as 1:1 or One to One, is where the sample is matched against one specific preselected template. In other words, the person needs to provide his/her ID number or member number, swipe a card or enter a user code to select a biometric template to match against.
  • Identification which is also known as 1:N or One to Many, on the other hand is where a sample is effectively matched against all templates in the database.
  • AFIS law enforcement Automated Fingerprint Identification Systems
  • the first is known as the Type 4 process and involves taking rolled impressions of a person's fingerprints.
  • Rolled impressions are the ten individually taken fingerprint images rolled from nail to nail.
  • Plain impressions which are the fingerprint images taken when a person's print is placed on a flat surface, are then used to verify the sequence and accuracy of the rolled impressions. For example, by taking the length and sequence of the fingerprints into account, the fingerprint associated with each individual finger can be identified. This verification process is typically performed automatically by an underlying algorithm.
  • the second type is known as Type 14 and involves the taking of fiat Impressions of multiple fingers simultaneously without rolling.
  • the impressions taken using this process are also referred to as plain, slap or flat impressions.
  • the fingerprint scanners used in this method is also referred to as slap scanners.
  • This process the impressions of four fingers of an Individual's right hand is taken first, followed by the Impressions of four fingers on the left hand and finally the impressions of the individual's two thumbs.
  • This process is also often referred to as the 4- 4-2 method given the sequence in which the fingerprints are taken.
  • Figures 1 to 3 of the accompanying drawings illustrate the 4-4-2 method.
  • This fingerprint capture method is preferred over the Type 4 method as it is a lot quicker to carry out and ensures the highest level of fingerprint sequence accuracy. Again, underlying algorithms are used to Identify and verify the fingerprint associated with each finger.
  • Type 14 method One disadvantage of the Type 14 method is mat the slap scanners used in this method are generally bulky seeing that their screens must be large enough to scan four fingers simultaneously. Although this might not be a problem when using stationary scanners, it could be real problematic when travelling with slap scanners.
  • a method of taking a person's fingerprints including the following steps:
  • the method preferably includes the step of providing two separate scanners so that in each step the fingers on the person's left and right hands are scanned on separate scanners.
  • the first pair of fingers on the person's left and right hand respectively Is preferably the index and middle fingers.
  • the second pair of fingers on the person's left and right hand respectively is preferably the ring and pinkie fingers.
  • a system for taking a person's fingerprints in accordance with the 4-4-2 protocol including two separate scanners so that the fingerprints on the person's left hand and the fingerprints on the person's right hand are taken on separate scanners.
  • each scanner is dimensioned to scan a pair of fingers at a time.
  • the pair of fingers scanned simultaneously is preferably a pair of adjacent fingers.
  • Figure 1 illustrates a first step of a prior art method of taking fingerprints using the 4-4-2 protocol
  • Figure 2 illustrates a second step of the prior art method of taking fingerprints
  • Figure 3 illustrates a third step of the prior art method of taking fingerprints
  • Figure 4 illustrates a first step of a method of taking fingerprints in accordance with the invention using the 4-4-2 protocol
  • Figure 5 illustrates a second step of a method of taking fingerprints in accordance with the invention.
  • Figure 6 illustrates a third step in a method of taking fingerprints in accordance with the Invention.
  • Figure 4 illustrates a first step 12 of the method of taking fingerprints according to the invention using a scanning system or device 14.
  • This step includes scanning the fingerprints of a first pair of fingers 16 from a person's left hand and a first pair of fingers 18 from the person's right-hand. From this figure it can be seen that the fingerprints from the first pair of fingers 16, 18 from both hands are taken simultaneously i.e. in one step.
  • a second step 20 of the method of taking fingerprints according to the invention is illustrated in Figure 5.
  • This step includes scanning the fingerprints of a second pair of fingers 22 from the person's left hand and a second pair of fingers 24 from the person's right hand. Again, the fingerprints from the second pair of fingers 22, 24 from both hands are taken simultaneously in a single step.
  • Figure 6 in turn, illustrates a third step 26 of the method of taking fingerprints according to the invention.
  • the fingerprints of the person's thumbs 28 are taken simultaneously.
  • the scanning device 14 Includes two separate scanners 14.1 and 14.2. It must be clear that in each of the above three steps the fingerprints of the person's left and right hands are taken by two separate scanners. In the accompanying drawings the fingerprints of the person's left hand are taken by the scanner 14.1 while the fingerprints of the person's right hand are taken by the scanner 14.2.
  • each of the scanners 14.1 and 14.2 only needs to accommodate two fingers at a time.
  • the scanners 14.2 and 14.2 are dimensioned to receive a single pair of fingers at a time, preferably a pair of adjacent fingers from the same hand. It follows naturally that the size of the individual scanners 14.1, 14.2 is reduced significantly when compared to conventional slap scanners. The reduction in size makes the scanners 14.1 , 14.2 more convenient to travel with, which could be of real interest during enrolment, for example, as it is often required to travel to different locations to collect biometric data.
  • the method according to the invention therefore allows for a more convenient biometric data collection methods while still complying with the ISO standards of the 44-2 protocol as set out in the ISO/IEC 19794 series. Accordingly, by using the method of the invention as described above the same advantages of the traditional 4-4-2 method of taking fingerprints as illustrated in Figures 1 to 3 are achieved together with the additional benefits mentioned above, without the need to change the underlying algorithms of the Internationally accepted 4-4-2 method.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un procédé de prise d'empreintes digitales d'une personne conformément au protocole 4-4-2. Le procédé consiste à effectuer le balayage des empreintes digitales d'une première paire de doigts (16) de la main gauche d'une personne et d'une première paire de doigts (18) de la main droite de la personne de manière simultanée. Ensuite, les empreintes digitales d'une seconde paire de doigts (22) de la main gauche de la personne et une seconde paire de doigts (24) de la main droite de la personne font l'objet d'un balayage de manière simultanée. Dans la dernière étape, les empreintes digitales des pouces (28) de la personne font l'objet d'un balayage de manière simultanée. Le procédé comporte de manière préférentielle l'étape consistant à fournir deux scanners distincts (14.1, 14.2) de sorte qu'à chaque étape les doigts des main gauche et main droite de la personne font l'objet d'un balayage sur des scanners distincts.
PCT/IB2014/066227 2013-11-21 2014-11-21 Procédé de prise d'empreintes digitales WO2015075680A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201308753 2013-11-21
ZA2013/08753 2013-11-21

Publications (1)

Publication Number Publication Date
WO2015075680A1 true WO2015075680A1 (fr) 2015-05-28

Family

ID=52117930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/066227 WO2015075680A1 (fr) 2013-11-21 2014-11-21 Procédé de prise d'empreintes digitales

Country Status (2)

Country Link
WO (1) WO2015075680A1 (fr)
ZA (1) ZA201406383B (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1239403A2 (fr) * 2001-03-06 2002-09-11 TRW Inc. Procédé et système de vérification de l'identité utilisant plusieurs images biométriques détectées simultanément
WO2007042918A2 (fr) * 2005-10-12 2007-04-19 Sygade Solutions (Proprietary) Limited Dispositif d'acquisition d'images d'empreintes digitales simultanees pour une pluralite de doigts
WO2011059496A1 (fr) * 2009-11-11 2011-05-19 Cross Match Technologies, Inc. Appareil et procédé de détermination du séquencement de doigts dans des images pour un balayage à deux doigts d'images d'empreintes digitales
US8224064B1 (en) * 2003-05-21 2012-07-17 University Of Kentucky Research Foundation, Inc. System and method for 3D imaging using structured light illumination

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1239403A2 (fr) * 2001-03-06 2002-09-11 TRW Inc. Procédé et système de vérification de l'identité utilisant plusieurs images biométriques détectées simultanément
US8224064B1 (en) * 2003-05-21 2012-07-17 University Of Kentucky Research Foundation, Inc. System and method for 3D imaging using structured light illumination
WO2007042918A2 (fr) * 2005-10-12 2007-04-19 Sygade Solutions (Proprietary) Limited Dispositif d'acquisition d'images d'empreintes digitales simultanees pour une pluralite de doigts
WO2011059496A1 (fr) * 2009-11-11 2011-05-19 Cross Match Technologies, Inc. Appareil et procédé de détermination du séquencement de doigts dans des images pour un balayage à deux doigts d'images d'empreintes digitales

Also Published As

Publication number Publication date
ZA201406383B (en) 2015-08-26

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