WO2011070886A1 - 偽指判別装置 - Google Patents
偽指判別装置 Download PDFInfo
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- WO2011070886A1 WO2011070886A1 PCT/JP2010/069991 JP2010069991W WO2011070886A1 WO 2011070886 A1 WO2011070886 A1 WO 2011070886A1 JP 2010069991 W JP2010069991 W JP 2010069991W WO 2011070886 A1 WO2011070886 A1 WO 2011070886A1
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- Prior art keywords
- finger
- sensor surface
- fingerprint
- fake
- deformation
- Prior art date
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- 238000012850 discrimination method Methods 0.000 claims description 2
- 238000009795 derivation Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 13
- 230000007246 mechanism Effects 0.000 description 11
- 238000003384 imaging method Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
-
- 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
- G06V40/1382—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger
- G06V40/1394—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger using acquisition arrangements
Definitions
- the present invention relates to a fake finger discrimination device suitable for discrimination of fake fingers.
- fingerprint authentication has attracted attention as one of authentication methods for identifying individuals. Fingerprints vary from person to person and are characterized by not changing over time. Therefore, fingerprint authentication is considered to be more reliable than password authentication or the like that is currently popular. On the other hand, in fingerprint authentication, it is necessary to prevent fraudulent impersonation by impersonating a person using a fake finger or the like forged by taking another person's fingerprint.
- a strip-shaped sweep sensor is used, and a finger placed on the sensor is slid in two directions in the front and rear directions (fingertip direction and finger base direction) at a constant speed.
- fingerprint images that is, the amount of deformation
- the target finger is a fake finger
- a method for determining whether or not see, for example, Patent Document 1.
- Patent Document 1 it is necessary for the subject to perform an input operation twice (that is, an operation of sliding a finger in two front and rear directions with respect to the sweep type sensor), and the convenience is reduced. There is a problem.
- the subject when a sweep type sensor is used, the subject needs to slide his / her finger at a constant speed, so that variations such as individual differences occur with respect to the deformation of the fingerprint image, which may reduce the discrimination accuracy.
- the present invention has been made in view of the above-described circumstances, and can acquire a fingerprint image necessary for fake finger discrimination with a single input operation, and improve the accuracy of fake finger discrimination as well as convenience.
- An object is to provide a fake finger discrimination technology capable of
- a discrimination object sensing device includes a moving means for moving a sensor surface on which a finger as a discrimination object is placed relative to the finger, and the finger surface before and after the movement of the sensor surface. And a sensing means for acquiring a fingerprint image.
- the fake finger discriminating apparatus is a fake finger discriminating apparatus having the discriminating object sensing device, based on two types of fingerprint images obtained by the sensing means before and after the movement of the sensor surface.
- Deriving means for determining the degree of fingerprint deformation storage means for storing a deformation threshold relating to the degree of fingerprint deformation for determining whether the finger is a real finger or a fake finger, the degree of fingerprint deformation determined by the derivation means, And determining means for determining whether the finger placed on the sensor surface is a real finger or a fake finger based on a result of comparison with a deformation threshold.
- the fake finger discrimination method includes a step of acquiring a fingerprint image of a finger before movement in which a finger as a discrimination target is placed on the sensor surface, and the sensor surface is relative to the finger.
- the present invention it is possible to acquire a fingerprint image necessary for fake finger discrimination with a single input operation, and it is possible to improve fake finger discrimination accuracy as well as convenience.
- FIG. 2 is a cross-sectional view taken along line II-II of the fake finger discrimination device shown in FIG.
- the finger is different in hardness from a human finger, and the degree of deformation of a fingerprint when a force is applied to the finger (in the case of a fake finger) is greatly different.
- a fake finger made of polyvinyl alcohol or vinyl acetate resin is harder than a human finger, and the degree of fingerprint deformation when applying force to the fake finger is the same as when applying force to the human finger with the same force. Smaller than the degree of fingerprint deformation.
- the present invention has been made paying attention to the characteristics of such false fingers.
- FIG. 1 is a plan view of the false finger discrimination device as viewed from directly above
- FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
- the fake finger discriminating device 100 is a device for discriminating whether or not the discrimination target T to be subjected to fingerprint authentication is a fake finger.
- the fake finger discrimination device 100 includes a housing 10, a sensor surface 20, a moving mechanism 25, a light source 30, an imaging device 40, a guide unit 50, and a computer 60. I have.
- the false finger discrimination device 100 according to the present embodiment is particularly characterized in that a moving mechanism 25 for moving the sensor surface 20 is provided.
- the side of the housing 10 on which the sensor surface 20 is provided is referred to as the upper side.
- the sensor surface 20 is a surface on which the discrimination target T (finger here) is placed, and is constituted by, for example, a fiber optic plate.
- the sensor surface 20 can be moved by a predetermined amount in the finger base direction by the moving mechanism 25 (see the white arrow direction shown in FIG. 2).
- the moving mechanism (moving means) 25 is constituted by a small motor or the like, and is a means for moving the sensor surface 20 by a predetermined amount at a predetermined speed in the direction of the base of the finger as the discrimination target T.
- the movement of the sensor surface 20 by the moving mechanism 25 is controlled by the computer 60. The details of the movement of the sensor surface 20 will be described in detail later, and the description is omitted here.
- the imaging device (sensing means) 40 is provided below the sensor surface 20.
- the imaging device 40 performs reflected light sensing using the light source 30 provided on the lower side of the housing 10 and images a finger that is the discrimination target T placed on the sensor surface 20.
- the imaging device 40 photographs the discrimination target T placed on the sensor surface 20 through an objective lens or the like, whereby a ridge where the skin swells is bright and a valley line between them is dark. Get.
- the guide unit 50 moves the sensor surface 20 by the moving mechanism 25, the guide unit 50 suppresses the finger as the discrimination target T from moving together with the sensor surface 20.
- the guide portion 50 is provided at a position where the periphery of the first joint of the finger contacts when the finger is placed on the sensor surface 20.
- the guide part 50 for fixing the finger placed on the sensor surface 20 is provided on the extension line of the movement locus of the sensor surface 20.
- the computer (derivation means) 60 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and the CPU executes various control programs stored in the ROM and RAM. Thereby, each part of the false finger discrimination device 100 is controlled centrally.
- a CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- FIG. 3 is a functional block diagram of the computer 60.
- the computer 60 includes placement detection means 61, image acquisition means 62, movement control means 63, and fake finger determination means 64.
- the placement detection means 61 determines whether or not the discrimination target T is placed on the sensor surface 20 based on a sensor signal output from a light amount sensor (not shown) or the like. When the placement detection unit 61 detects that the discrimination target T has been placed on the sensor surface 20, the placement detection unit 61 notifies the image acquisition unit 62 and the movement control unit 63 of the detection.
- Image acquisition means (sensing means) 62 acquires fingerprint images before and after movement of the sensor surface 20. Specifically, when receiving a notification from the placement detection means 61 that the finger as the discrimination target T has been placed on the sensor surface 20, the image acquisition means 62 uses the light source 30 and the imaging device 40. Reflected light sensing is performed to obtain a fingerprint image before the sensor surface 20 moves (that is, a fingerprint image representing a fingerprint before deformation; hereinafter, a fingerprint image before deformation). On the other hand, when the image acquisition unit 62 receives a notification that the sensor surface 20 has been moved from the movement control unit 63, the image acquisition unit 62 performs reflected light sensing using the light source 30 and the imaging device 40, and after the sensor surface 20 has moved. A fingerprint image (that is, a fingerprint image representing a deformed fingerprint; hereinafter, a deformed fingerprint image) is acquired. The image acquisition unit 62 outputs the acquired fingerprint images before and after the deformation to the fake finger determination unit 64.
- the movement control means 63 controls the movement of the sensor surface 20 by the movement mechanism 25. Specifically, the movement control means 63 receives a notification that the discrimination target T has been placed from the placement detection means 61 and a notification that the pre-deformation fingerprint image has been obtained from the fake finger discrimination means 64. , The sensor surface 20 is moved by a predetermined amount (movement amount) at a predetermined speed (movement speed) in the direction of the base of the finger. When the sensor surface 20 is moved, the movement control means 63 notifies the image acquisition means 62 that the sensor surface 20 has been moved. It should be noted that the moving speed and amount of movement of the moving mechanism 25 may be determined in advance by experiments in consideration of the degree of fingerprint deformation before and after movement.
- the fake finger discriminating means (derivation means, discriminating means) 64 discriminates whether or not it is a fake finger by analyzing the fingerprint images before and after the deformation supplied from the image acquisition means 62.
- the detection target T real finger or fake finger
- the sensor surface 20 is moved in the direction of the base of the finger
- the fingerprint closer to the fingertip becomes the base of the finger.
- the ridge interval is narrower than that of a nearby fingerprint, but the degree of deformation of the fingerprint is smaller for a fake finger than for a real finger (see A. Technical assumptions above).
- FIG. 4 is a diagram illustrating fingerprint images before and after deformation of a real finger
- FIG. 5 is a diagram illustrating fingerprint images before and after deformation of a fake finger.
- 4 and FIG. 5 shows a fingerprint image before deformation
- B shown in FIG. 4 and FIG. 5 shows a fingerprint image after deformation.
- a part ⁇ indicates a characteristic part of the fingerprint (for example, a part including minutia such as a branch point or an end point of a ridge).
- the fake finger discriminating unit 64 extracts the characteristic part ⁇ of the fingerprint by analyzing the fingerprint image supplied from the image acquisition unit 62, and the movement amount Vm before and after the deformation of the extracted characteristic part ⁇ is the movement amount. It is determined whether or not a threshold (deformation threshold) Th is exceeded.
- the movement amount threshold Th is a threshold set for determining whether the determination target T is a fake finger or a real finger, and is obtained in advance by an experiment.
- the line interval D in the moving direction in the characteristic portion ⁇ may be obtained by frequency analysis, and it may be determined whether or not the obtained line interval D exceeds the set line interval threshold value Dh.
- the fake finger discriminating means 64 judges that the discrimination target T is a real finger when the movement amount Vm is equal to or greater than the movement amount threshold Th. On the other hand, if the movement amount Vm is less than the movement amount threshold Th, the fake finger determination unit 64 determines that the determination target T is a fake finger.
- the operation of the fake finger discrimination apparatus 100 will be described with reference to FIG.
- the computer 60 of the fake finger discrimination apparatus 100 informs the subject of a message that the discrimination target T (ie, finger) should be placed on the sensor surface 20 (step) S1).
- the subject places his / her finger on the sensor surface 20 so that the periphery of the first joint of the finger contacts the guide unit 50.
- the placement detection means 61 of the computer 60 determines whether or not the discrimination target T is placed on the sensor surface 20 based on a sensor signal output from a light amount sensor (not shown) or the like (step S2).
- the placement detection means 61 detects that the discrimination target T has been placed on the sensor surface 20 while repeatedly executing step S2 (step S2; YES)
- the image acquisition means 62 indicates that it has been detected. And notifies the movement control means 63.
- the image acquisition unit 62 When the image acquisition unit 62 receives a notification from the placement detection unit 61 that the finger as the discrimination target T has been placed on the sensor surface 20, the image acquisition unit 62 performs reflected light sensing using the light source 30 and the imaging device 40.
- the fingerprint image before the sensor surface 20 moves (that is, the fingerprint image before deformation) is acquired (step S3).
- the image acquisition unit 62 outputs the acquired fingerprint image before deformation to the fake finger determination unit 64 (step S4).
- the fake finger discrimination means 64 When receiving the fingerprint image before deformation, the fake finger discrimination means 64 notifies the movement control means 63 that the fingerprint image before deformation has been acquired.
- the movement control unit 63 When the movement control unit 63 receives a notification that the discrimination target T has been placed from the placement detection unit 61 and receives a notification that the pre-deformation fingerprint image has been acquired from the fake finger discrimination unit 64,
- the sensor surface 20 is moved by a predetermined amount (movement amount) at a predetermined speed (movement speed) in the direction of the base of the finger (step S5). As described above, optimum values obtained by experiments or the like may be used for the movement speed and movement amount.
- the movement control means 63 notifies the image acquisition means 62 that the sensor surface 20 has been moved.
- the image acquisition means 62 When receiving the notification that the sensor surface 20 has been moved from the movement control means 63, the image acquisition means 62 performs reflected light sensing using the light source 30 and the imaging device 40, and acquires a deformed fingerprint image (Ste S6).
- the image acquisition unit 62 outputs the acquired fingerprint images before and after the deformation to the fake finger determination unit 64 (step S7).
- the fake finger discrimination means 64 When the fake finger discrimination means 64 receives the fingerprint images before and after the deformation from the image acquisition means 62, the fake finger discrimination means 64 compares and analyzes the received fingerprint images before and after the deformation to determine whether the finger that is the discrimination target T is a real finger. It is determined whether the finger is a fake finger (step S8).
- the characteristic portion ⁇ moves greatly due to finger distortion (see FIGS. 4A and 4B), whereas in a fingerprint collected from a false finger, a false finger Therefore, the characteristic portion ⁇ hardly moves (see A and B in FIG. 5).
- the fake finger discriminating unit 64 first analyzes the fingerprint image supplied from the image acquisition unit 62 using such characteristics of the fake finger and performs characteristic portions of the fingerprint (for example, branch points and end points of ridges). A) including a minutia such as. Then, the fake finger determination unit 64 determines whether or not the movement amount Vm before and after the deformation of the extracted characteristic part ⁇ exceeds the movement amount threshold Th.
- the movement amount threshold Th is a threshold set for determining whether the determination target T is a fake finger or a real finger, and is obtained in advance by an experiment.
- the fake finger determination unit 64 determines that the determination target T is a real finger.
- the fake finger determination unit 64 determines that the determination target T is a fake finger. And the said process is complete
- the computer 60 determines that the determination target T is a real finger
- the computer 60 performs positive authentication (for example, with a real finger) such as authenticating the person using the acquired fingerprint image or the like. The process is executed when the determination is made.
- the computer 60 determines that the determination target T is a fake finger
- the computer 60 displays a warning message indicating that it is a fake finger, for example, on a display (not shown). Processing is performed when (judgment of fake finger) is obtained.
- the present embodiment it is possible to determine a fake finger only by performing a single input operation in which the subject places a finger on the sensor surface. Therefore, it is possible to improve convenience compared with the conventional technique that requires two input operations (specifically, an operation of sliding a finger in two directions in the front-rear direction with respect to the sweep type sensor) for the fake finger discrimination. Is possible.
- the subject needs to slide his / her finger at a constant speed, and thus there is a risk that variations in individual fingerprints may occur with respect to the deformation of the fingerprint image and the discrimination accuracy may be reduced.
- the subject does not move his / her finger himself, but the moving mechanism moves the sensor surface to obtain a deformed fingerprint image, thereby suppressing variations such as individual differences. It is possible to improve the discrimination accuracy.
- the guide unit 50 may be installed so that the finger does not move or rotate with the movement or rotation of the sensor surface 20.
- the sensor surface 20 is provided such that the guide portion 50 is provided so that the tip of the finger contacts the front surface f of the guide portion 50 as shown in FIG. What is necessary is just to provide the guide part 50 for fixing the finger mounted in the sensor surface 20 on the extension line
- the first guide portion 50a may be provided so that the tip of the finger contacts
- the second guide portion 50b may be provided so that the side surface of the finger contacts.
- the sensor surface 20 is moved in the fingertip direction, and a fingerprint image after movement (hereinafter referred to as a first moving fingerprint image) is obtained.
- the sensor surface 20 is further moved in the lateral direction of the finger (for example, the left side surface), and a fingerprint image after the movement (hereinafter referred to as a second moving fingerprint image) is acquired.
- the fingerprint image before the movement and the first movement fingerprint image are compared with the fingerprint image before the movement and the second movement fingerprint image, respectively. Or whether it is a real finger.
- a guide portion 50 that covers the entire finger of the subject may be provided as shown in FIG.
- FIG. 10 is a diagram illustrating the principle of the capacitive sensor 70.
- the capacitive sensor 70 does not require the arrangement of optical components and the optical path length, and thus has an advantage that the sensor can be manufactured in a small size and at a low price.
- the capacitive sensor 70 has a sensor surface 20 covered with a protective film, and a plurality of internal electrodes 71 embedded in the sensor are arranged in parallel under the protective film. Each internal electrode 71 is connected to the image generation unit 72.
- the image generation unit 72 obtains a fingerprint image by measuring the impedance corresponding to the capacitance.
- the point which moves the sensor surface 20 using the moving mechanism 25 can be demonstrated similarly to this embodiment, the description beyond this is omitted.
- capacitive sensor 70 is used has been described above.
- other non-optical sensors holographic sensors, luminescence sensors, ultrasonic sensors, pressure sensors, and thermal sensors. It is also applicable to.
- the steps of the processes shown in the embodiment can be arbitrarily changed in order or executed in parallel as long as the process contents do not contradict each other.
- the term “means” does not simply mean a physical means, but includes a case where the functions of the means are realized by software.
- the function of one means may be realized by two or more physical means, or the functions of two or more means may be realized by one physical means.
- the software according to the present invention can be installed in a computer by downloading it through various recording media such as an optical disk such as a CD-ROM and a DVD-ROM, a magnetic disk, and a semiconductor memory, or via a communication network. Can be loaded.
- the fake finger discrimination device can acquire a fingerprint image necessary for fake finger discrimination with a single input operation, and is suitable for improving the discrimination accuracy of fake fingers as well as convenience.
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Abstract
Description
偽指と人の指とは硬さが異なり、指に力が加わったときの指紋(偽指の場合は人口指紋)の変形度合いが大きく異なる。例えばポリビニルアルコールや酢酸ビニル樹脂を材料とした偽指は人の指よりも固く、偽指に力を加えたときの指紋の変形度合いは、同一の力で人の指に力を加えたときの指紋の変形度合いに比べて小さくなる。このような偽指の特性に着目してなされたのが本願発明である。
(1)実施形態の構成
まず、図1および図2を参照して、実施形態における偽指判別装置100の構成について説明する。図1は、偽指判別装置を真上から見たときの平面図であり、図2は、図1のII-II線断面図である。
偽指判別装置100のコンピュータ60は、まず、被検者に対して判別対象物T(すなわち指)をセンサ面20に載置すべき旨のメッセージを報知する(ステップS1)。
(1)上述した本実施形態では、指の付け根方向にセンサ面20を移動させる場合について説明したが、例えば図7の矢印で示すように指の先方向にセンサ面20を移動させてもよい。もちろん、指の前後方向(図7に示すX方向)のみならず、指の左右方向(図7に示すY方向)や、指の上下方向(図7に示すZ方向)にセンサ面20を移動させてもよく、さらにはセンサ面20を回転(例えば図7に示すX軸のまわりに回転)させることとしてもよい。
Claims (6)
- 判別対象物としての指が載置されるセンサ面を、該指に対して相対的に移動させる移動手段と、
前記センサ面の移動前後における前記指の指紋画像を取得するセンシング手段と、
を備える判別対象物センシング装置。 - 請求項1に記載の判別対象物センシング装置を有する偽指判別装置であって、
前記センシング手段によって得られた2種類の指紋画像に基づき、前記センサ面の移動前後における指紋の変形度合いを求める導出手段と、
本物の指か偽指かを判別するための指紋の変形度合いに関わる変形閾値を記憶する記憶手段と、
前記導出手段が求めた前記指紋の変形度合いと前記変形閾値との比較結果に基づいて、前記センサ面に載置された指が、本物の指であるか偽指であるかを判別する判別手段と、
を備える偽指判別装置。 - 前記移動手段は、前記センサ面を、前記指の長手方向、前記指の側面方向、前記指の長手方向に垂直な方向のいずれかの方向に移動または回転させる、請求項2に記載の偽指判別装置。
- 前記センサ面の移動軌跡の延長線上に、前記センサ面に載置される指を固定するためのガイド部が設けられている、請求項2に記載の偽指判別装置。
- 前記センサ面に載置された指の先が当接する位置、または前記センサ面に載置された指の側面が当接する位置の少なくともいずれか一方の位置に、前記ガイド部が設けられている、請求項4に記載の偽指判別装置。
- 判別対象物としての指がセンサ面に載置された移動前の指の指紋画像を取得するステップと、
前記センサ面を、前記指に対して相対的に移動させるステップと、
前記センサ面に載置された移動後の指の指紋画像を取得するステップと、
移動前後の2種類の指紋画像に基づき、前記センサ面の移動前後における指紋の変形度合いを求めるステップと、
求めた前記指紋の変形度合いと、指紋の変形度合いに関わる変形閾値とを比較し、比較結果に基づいて前記センサ面に載置された指が、本物の指であるか偽指であるかを判別するステップと、
を含む偽指判別方法。
Priority Applications (5)
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CN201080055294.8A CN102667849B (zh) | 2009-12-07 | 2010-11-10 | 伪指判别设备 |
KR1020127014592A KR101402380B1 (ko) | 2009-12-07 | 2010-11-10 | 위조 손가락 판별 장치 |
EP10835808.6A EP2511872B1 (en) | 2009-12-07 | 2010-11-10 | Fake finger discrimination device |
US13/514,226 US8929618B2 (en) | 2009-12-07 | 2010-11-10 | Fake-finger determination device |
JP2011545155A JP5930166B2 (ja) | 2009-12-07 | 2010-11-10 | 偽指判別装置 |
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JP2009277655 | 2009-12-07 | ||
JP2009-277655 | 2009-12-07 |
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US (1) | US8929618B2 (ja) |
EP (1) | EP2511872B1 (ja) |
JP (1) | JP5930166B2 (ja) |
KR (1) | KR101402380B1 (ja) |
CN (1) | CN102667849B (ja) |
WO (1) | WO2011070886A1 (ja) |
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KR20140079467A (ko) * | 2011-10-25 | 2014-06-26 | 모르포 | 위조 방지 장치 |
JPWO2019021977A1 (ja) * | 2017-07-26 | 2020-03-26 | 日本電気株式会社 | 指紋読取装置及び指紋読取方法 |
WO2021019632A1 (ja) * | 2019-07-29 | 2021-02-04 | バイオニクス株式会社 | 血流認証装置 |
WO2024195039A1 (ja) * | 2023-03-22 | 2024-09-26 | 日本電気株式会社 | 情報処理装置、情報処理方法、及び、記録媒体 |
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Also Published As
Publication number | Publication date |
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EP2511872A1 (en) | 2012-10-17 |
CN102667849A (zh) | 2012-09-12 |
US20120237091A1 (en) | 2012-09-20 |
EP2511872A4 (en) | 2017-10-25 |
KR20120091303A (ko) | 2012-08-17 |
JPWO2011070886A1 (ja) | 2013-04-22 |
JP5930166B2 (ja) | 2016-06-08 |
EP2511872B1 (en) | 2020-05-13 |
KR101402380B1 (ko) | 2014-06-03 |
US8929618B2 (en) | 2015-01-06 |
CN102667849B (zh) | 2015-07-08 |
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