JP2011253333A - Biometric authentication device - Google Patents

Biometric authentication device Download PDF

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JP2011253333A
JP2011253333A JP2010126430A JP2010126430A JP2011253333A JP 2011253333 A JP2011253333 A JP 2011253333A JP 2010126430 A JP2010126430 A JP 2010126430A JP 2010126430 A JP2010126430 A JP 2010126430A JP 2011253333 A JP2011253333 A JP 2011253333A
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light
imaging unit
living body
authentication device
biometric authentication
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Kyoichi Takahashi
恭一 高橋
Shinichiro Aikawa
慎一郎 相川
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Hitachi Media Electronics Co Ltd
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Hitachi Media Electronics Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To improve authentication performance by obtaining a high-quality image area 9 in a wider area and increasing image data of a vein.SOLUTION: A biometric authentication device used for authentication with a vein image of a biometrical target comprises a carrying surface on which a biometrical target is placed when a vein image is taken, a light source which illuminates the biometrical target placed on the carrying surface with infrared light, an imaging unit which takes a vein image of the biometrical target with the light from the light source, and an image processing unit which processes the vein image taken by the imaging unit. The light source and the imaging unit are provided on the same side as the biometrical target placed on the carrying surface, the brightness distribution of the light taken by the imaging unit has a plurality of brightness centroids along a predetermined direction when the light source illuminates the biometrical target placed on the carrying surface with infrared light.

Description

本発明は、個人を認証する認証装置に関し、特に、生体の静脈情報を用いて認証を行なう技術に関する。   The present invention relates to an authentication apparatus for authenticating an individual, and more particularly to a technique for performing authentication using vein information of a living body.

近年、生体の静脈を認証して個人認証を行なう装置が開発されている。例えば、指静脈認証装置の例として特許文献１がある。特許文献１には、「生体の提示の際に生じる位置ずれを吸収するために、互いに撮像位置の異なる複数の登録データを複数回の生体の提示によって獲得することで、認証精度が高く、かつ小型で平面的な静脈認証装置を提供することを目的」とし、その解決手段として、「本発明の生体情報処理装置は、生体を設置する載置面と、上記生体に光を照射する光源と、該生体を透過した光を撮像し登録画像候補を取得する撮像部と、上記撮像された複数の登録画像候補から血管パターンを抽出し登録パターンとする処理部とを有し、上記処理部は上記登録画像の取得後に上記載置面から該生体が離れたかを検知し、更に、再度上記生体の上記載置面への設置後に上記撮像部で撮像された画像を上記登録画像候補とすることを特徴とする。」との記載がある（特許文献１の要約参照）。   In recent years, an apparatus for authenticating a vein of a living body and performing personal authentication has been developed. For example, Patent Document 1 is an example of a finger vein authentication device. Patent Document 1 states that “in order to absorb a positional shift that occurs when a living body is presented, a plurality of registered data with different imaging positions are obtained by presenting the living body multiple times, thereby providing high authentication accuracy and The purpose is to provide a small and flat vein authentication device ”, and as a means for solving the problem,“ the living body information processing apparatus of the present invention includes a mounting surface on which a living body is placed, a light source that irradiates light on the living body, An imaging unit that captures light transmitted through the living body and obtains a registered image candidate; and a processing unit that extracts a blood vessel pattern from the captured plurality of registered image candidates and sets it as a registered pattern. After acquiring the registered image, it is detected whether the living body has moved away from the placement surface, and an image captured by the imaging unit after being placed on the placement surface again is set as the registered image candidate. ” Is (summary see Patent Document 1).

ここで、図４は従来方式における指静脈認証装置の構成、図５は従来方式の静脈画像の一例を示す概略図である。図４に示す従来方式は、指の側面に光源を設けず、光源と検出器とを測定対象である生体に対して同じ側に設けることで、装置の高さ方向の大きさを低減するシステムである（例えば、特許文献１等）。   Here, FIG. 4 is a schematic diagram showing a configuration of a conventional finger vein authentication apparatus, and FIG. 5 is a schematic diagram showing an example of a conventional vein image. The conventional method shown in FIG. 4 is a system that reduces the size of the apparatus in the height direction by providing a light source and a detector on the same side with respect to a living body to be measured without providing a light source on the side surface of the finger. (For example, Patent Document 1).

特開２００８―１８１５７０号公報JP 2008-181570 A

図４に示す従来方式において、撮像部３のセンサ許容量は、有限の範囲（レンジ）で決められるため、適切な静脈画像を得るためには、輝度分布を撮像領域内全体に渡って、センサ許容量のレンジ内に収まるようにする必要がある。すなわち、ある撮像領域内において、光源から照射される赤外光の輝度が大きすぎると、撮像部３のセンサ許容量を越えてしまい輝度飽和が生じるため、適切な静脈画像を得られなくなる。図４の従来方式の構造は、赤外線ＬＥＤ２が指１の中心付近に設置されているため、輝度飽和領域８が中心付近に集中し、品質の良い画像領域９（すなわち、輝度分布がセンサ許容量のレンジ内に収まる領域）が狭くなるという課題がある。すなわち、図５に示すように、輝度飽和領域が指１の中心付近に集中しｂ、ｃの品質の良い画像領域９は広いが、一方でａの品質の良い画像領域９が狭くなる。この場合、個人認証に必要な静脈画像としてはａ領域しか使えないため、静脈画像の情報が認証性能を確保するうえでは不十分となってしまう。   In the conventional method shown in FIG. 4, the sensor allowable amount of the imaging unit 3 is determined in a finite range (range). Therefore, in order to obtain an appropriate vein image, the luminance distribution is measured over the entire imaging region. It needs to be within the allowable range. That is, if the brightness of the infrared light emitted from the light source is too high in a certain imaging area, the sensor allowable amount of the imaging unit 3 is exceeded and saturation occurs, so that an appropriate vein image cannot be obtained. In the structure of the conventional system shown in FIG. 4, since the infrared LED 2 is installed near the center of the finger 1, the luminance saturation region 8 is concentrated near the center, and the image region 9 with good quality (that is, the luminance distribution is the sensor allowable amount). There is a problem that the area that falls within the range of (2) becomes narrower. That is, as shown in FIG. 5, the luminance saturation region is concentrated near the center of the finger 1, and the image region 9 with good quality of b and c is wide, while the image region 9 with good quality of a is narrow. In this case, since only the a region can be used as a vein image necessary for personal authentication, the information of the vein image is insufficient to secure the authentication performance.

本発明では品質の良い画像領域９をより広い領域で取得し、静脈の画像情報を増やすことによって、認証性能を上げることを目的とする。   An object of the present invention is to improve the authentication performance by acquiring a high quality image area 9 in a wider area and increasing vein image information.

本発明では、上記課題を改善するため、一例として特許請求の範囲に記載の構成を用いる。具体的には、例えば、生体の静脈画像により認証を行なう生体認証装置であって、静脈画像を撮像する際に生体を設置する載置面と、前記載置面に設置された生体へ赤外光を照射する光源と、前記光源から照射された光によって、前記生体の静脈画像を撮像する撮像部と、前記撮像部により撮像された前記静脈画像を処理する画像処理部とを備え、前記光源と前記撮像部とは、前記載置面に設置された前記生体に対して同一側に設けられ、前記載置面に設置された生体に対し、前記光源により赤外光を照射したとき、前記撮像部が撮像する光の輝度分布が、所定の方向に沿って輝度重心を複数個有することを特徴とする生体認証装置を用いる。   In the present invention, in order to improve the above problem, the configuration described in the claims is used as an example. Specifically, for example, a biometric authentication device that performs authentication using a vein image of a living body, and a placement surface on which a living body is placed when a vein image is captured, and a living body placed on the placement surface are infrared A light source that emits light; an imaging unit that captures a vein image of the living body using light emitted from the light source; and an image processing unit that processes the vein image captured by the imaging unit. And the imaging unit is provided on the same side with respect to the living body installed on the mounting surface, and when the infrared light is irradiated to the living body installed on the mounting surface by the light source, A biometric authentication device is used in which the luminance distribution of light imaged by the imaging unit has a plurality of luminance centroids along a predetermined direction.

本発明によれば、品質の良い画像領域を増やすことにより認証性能に優れた指静脈認証装置を実現できる。   ADVANTAGE OF THE INVENTION According to this invention, the finger vein authentication apparatus excellent in authentication performance is realizable by increasing a quality image area.

実施例１における生体認証装置の一例を示す図The figure which shows an example of the biometrics authentication apparatus in Example 1. 実施例２における生体認証装置の一例を示す図The figure which shows an example of the biometrics authentication apparatus in Example 2. 実施例３における生体認証装置の一例を示す図The figure which shows an example of the biometrics authentication apparatus in Example 3. 従来方式における生体認証装置の一例を示す図The figure which shows an example of the biometrics authentication apparatus in a conventional system 従来方式における静脈画像の一例を示す図The figure which shows an example of the vein image in a conventional system 本実施例における静脈画像の一例を示す図The figure which shows an example of the vein image in a present Example

以下、本発明の実施の形態を図面を用いて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、実施例１における生体認証装置の一例を示す図である。   FIG. 1 is a diagram illustrating an example of a biometric authentication apparatus according to the first embodiment.

なお、本実施例では、指の静脈画像を取得して個人認証を行なう場合を例に説明をする。しかしながら、本発明はこれに限られるものではなく、同様の装置構成で他の生体（例えば、手のひら等）に対して静脈画像の撮像を行なう個人認証装置にも適用可能である。   In this embodiment, a case where a finger vein image is acquired and personal authentication is performed will be described as an example. However, the present invention is not limited to this, and can also be applied to a personal authentication apparatus that captures a vein image with respect to another living body (for example, a palm or the like) with the same apparatus configuration.

図１において、第一赤外線ＬＥＤ２は、載置面１１に設置された指１に対し、赤外光を照射する光源である。撮像部３は、第一赤外線ＬＥＤ２から照射された赤外光によって、指１の静脈画像を撮像する。すなわち、当該赤外光は、指１で透過・散乱し、撮像部３はその光を検知して指の静脈画像を撮像する。そして、撮像部３により撮像された静脈画像は、画像処理部１０によって所定の処理が行なわれ、個人認証処理が行なわれる。また、ライトガイド４は、例えば透明な材質からなるカバー部材であり、第一赤外線ＬＥＤ２から照射された赤外光を装置外へと導き、光のロス（光量損失）を低減させる部材である。   In FIG. 1, the first infrared LED 2 is a light source that irradiates infrared light onto the finger 1 placed on the placement surface 11. The imaging unit 3 captures a vein image of the finger 1 with infrared light emitted from the first infrared LED 2. That is, the infrared light is transmitted and scattered by the finger 1, and the imaging unit 3 detects the light and images a finger vein image. The vein image captured by the imaging unit 3 is subjected to a predetermined process by the image processing unit 10 and a personal authentication process is performed. The light guide 4 is a cover member made of, for example, a transparent material, and is a member that guides infrared light emitted from the first infrared LED 2 to the outside of the apparatus and reduces light loss (light quantity loss).

図１の本実施例における特徴的な構成は、１つのライトガイド内に存在する複数の第一赤外線ＬＥＤ２が、所定距離だけ離して配置されている点である。例えば、本実施例では、１つのライトガイド内に２つの第一赤外線ＬＥＤ２が配置されている。このように、第一赤外線ＬＥＤ２を離すことにより、図６に示すような輝度分布が得られる。すなわち、赤外線ＬＥＤ２を指１の幅方向に広げることにより、の第一赤外線ＬＥＤ２を結ぶ直線方向（例えば、載置面１１に設置された指１の幅方向）に沿って２つの輝度重心が現れ、所定距離だけ離れた状態において、ａ、ｂ及びｃの距離が略均等となる。なお、輝度重心とは、撮像部３が撮像する光の輝度分布が極大となる点を意味するものである。このようにすれば、指１中心付近の輝度飽和領域を少なくし、図６のように品質の良い画像領域をより広く得ることができ、認証性能を向上させることができる。   A characteristic configuration in the present embodiment of FIG. 1 is that a plurality of first infrared LEDs 2 existing in one light guide are arranged separated by a predetermined distance. For example, in this embodiment, two first infrared LEDs 2 are arranged in one light guide. Thus, by separating the first infrared LED 2, a luminance distribution as shown in FIG. 6 is obtained. That is, by expanding the infrared LED 2 in the width direction of the finger 1, two luminance centers of gravity appear along a linear direction connecting the first infrared LED 2 (for example, the width direction of the finger 1 installed on the placement surface 11). In a state where they are separated by a predetermined distance, the distances a, b and c are substantially equal. The luminance centroid means a point where the luminance distribution of light imaged by the imaging unit 3 is maximized. In this way, it is possible to reduce the luminance saturation region near the center of the finger 1, obtain a wider image region with good quality as shown in FIG. 6, and improve the authentication performance.

図２は、実施例２における生体認証装置の一例を示す図である。図２に示す基本的構成及び個人認証の処理は、実施例１と同様であるため、説明を省略する。図２における生体認証装置では、ひとつのライトガイド内に設置された第一赤外線ＬＥＤ２の数が、実施例１の装置に比べ多いことが特徴である。この場合であっても、輝度重心の距離を広くすることで、実施例１と同様の効果が得られる。すなわち、本発明の特徴は、輝度重心間の距離を所定距離だけ離すことで、品質の良い画像領域９をより広い領域で取得し、静脈の画像情報を増やすことによって、認証性能を上げることにある。したがって、第一赤外線ＬＥＤ２の設置個数によって限定されるものではないことは明らかであろう。   FIG. 2 is a diagram illustrating an example of a biometric authentication apparatus according to the second embodiment. The basic configuration and the personal authentication process shown in FIG. 2 are the same as those in the first embodiment, and a description thereof will be omitted. The biometric authentication device in FIG. 2 is characterized in that the number of first infrared LEDs 2 installed in one light guide is larger than that of the device of the first embodiment. Even in this case, the same effect as in the first embodiment can be obtained by widening the distance of the luminance center of gravity. That is, the feature of the present invention is to increase the authentication performance by acquiring a high-quality image area 9 in a wider area by increasing the distance between the luminance centroids by a predetermined distance and increasing the vein image information. is there. Therefore, it will be clear that the number of the first infrared LEDs 2 is not limited.

図３に、実施例３における生体認証装置の一例を示す。これは、上記知見に鑑みて得られた変形例であり、分割したライトガイド５を備える点を特徴とする。分割したライトガイド５は、第一赤外線ＬＥＤから照射された赤外光を、複数（例えば２つ）の光に分割する光分割機構の作用を奏するものであればよい。これにより、１つの第一赤外線ＬＥＤから照射された光であっても、分割したライトガイド５の当該作用により、撮像部３が撮像する光の輝度分布は、輝度重心を複数個有する状態となり、図６に等しい静脈画像が得ることができ、実施例１等と同様の効果が得られる。   FIG. 3 shows an example of a biometric authentication apparatus according to the third embodiment. This is a modification obtained in view of the above knowledge, and is characterized in that it includes a divided light guide 5. The divided light guide 5 only needs to have the function of a light dividing mechanism that divides the infrared light irradiated from the first infrared LED into a plurality of (for example, two) lights. Thereby, even if it is the light irradiated from one 1st infrared LED, the brightness | luminance distribution of the light which the imaging part 3 images with the said effect | action of the divided | segmented light guide 5 will be in the state which has multiple brightness | luminance gravity centers, A vein image equivalent to that in FIG. 6 can be obtained, and the same effect as in the first embodiment can be obtained.

なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。   In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. In addition, a part of the configuration of a certain embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of a certain embodiment.

１・・・指
２・・・第一赤外線ＬＥＤ
３・・・撮像部
４・・・ライトガイド
５・・・分割したライトガイド
６・・・カメラ
７・・・静脈画像
８・・・輝度飽和領域
９・・・品質の良い領域
１０・・・画像処理部
１１・・・載置面 1 ... finger 2 ... first infrared LED
DESCRIPTION OF SYMBOLS 3 ... Image pick-up part 4 ... Light guide 5 ... Divided light guide 6 ... Camera 7 ... Vein image 8 ... Luminance saturated area | region 9 ... Quality area | region 10 ... Image processing unit 11 ... placement surface

Claims (5)

生体の静脈画像により認証を行なう生体認証装置であって、
静脈画像を撮像する際に生体を設置する載置面と、
前記載置面に設置された生体へ赤外光を照射する光源と、
前記光源から照射された光によって、前記生体の静脈画像を撮像する撮像部と、
前記撮像部により撮像された前記静脈画像を処理する画像処理部とを備え、
前記光源と前記撮像部とは、前記載置面に設置された前記生体に対して同一側に設けられ、
前記載置面に設置された生体に対し、前記光源により赤外光を照射したとき、前記撮像部が撮像する光の輝度分布が、所定の方向に沿って輝度重心を複数個有することを特徴とする生体認証装置。 A biometric authentication device that performs authentication using a vein image of a living body,
A mounting surface on which a living body is placed when capturing a vein image;
A light source for irradiating the living body placed on the mounting surface with infrared light;
An imaging unit that captures a vein image of the living body with light emitted from the light source;
An image processing unit that processes the vein image captured by the imaging unit,
The light source and the imaging unit are provided on the same side with respect to the living body placed on the placement surface,
When the living body placed on the mounting surface is irradiated with infrared light from the light source, the luminance distribution of the light imaged by the imaging unit has a plurality of luminance centers of gravity along a predetermined direction. A biometric authentication device. 請求項１に記載の生体認証装置であって、
前記載置面に設置された生体に対し、前記光源により赤外光を照射したとき、前記撮像部が撮像する光の輝度分布が、輝度飽和領域と前記撮像部が検知可能な領域との境界が略平坦となることを特徴とする生体認証装置。 The biometric authentication device according to claim 1,
When the living body placed on the mounting surface is irradiated with infrared light from the light source, the luminance distribution of the light imaged by the imaging unit is a boundary between a luminance saturation region and a region detectable by the imaging unit A biometric authentication device characterized by being substantially flat. 請求項１に記載の生体認証装置であって、
前記光源を複数個有し、
前記載置面に設置された生体に対し、前記複数の光源により赤外光を照射したとき、前記撮像部が撮像する光の輝度分布が、前記複数の光源のうち少なくとも２つの光源を通る直線方向に沿って輝度重心を複数個有することを特徴とする生体認証装置。 The biometric authentication device according to claim 1,
A plurality of the light sources;
When the living body placed on the mounting surface is irradiated with infrared light from the plurality of light sources, the luminance distribution of light imaged by the imaging unit is a straight line passing through at least two of the plurality of light sources. A biometric authentication device having a plurality of luminance centers of gravity along a direction. 請求項１に記載の生体認証装置であって、
前記光源から照射された光を分割する光分割機構を有し、
複数個の前記輝度重心は、前記光分割機構により分割された光のそれぞれの輝度重心であることを特徴とする生体認証装置。 The biometric authentication device according to claim 1,
A light splitting mechanism for splitting the light emitted from the light source;
The plurality of luminance centroids are respective luminance centroids of light divided by the light dividing mechanism. 請求項１に記載の生体認証装置であって、
静脈画像を撮像される前記生体は指であり、
前記載置面に設置された指に対し、前記光源により赤外光を照射したとき、前記撮像部が撮像する光の輝度分布が、前記指の幅方向に沿って輝度重心を複数個有することを特徴とする生体認証装置。 The biometric authentication device according to claim 1,
The living body from which a vein image is taken is a finger,
When the finger placed on the mounting surface is irradiated with infrared light from the light source, the luminance distribution of the light imaged by the imaging unit has a plurality of luminance centroids along the width direction of the finger. A biometric authentication device.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014183877A (en) * 2013-03-22 2014-10-02 Hitachi Ltd Blood vessel image photographing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007215899A (en) * 2006-02-20 2007-08-30 Hitachi Information & Control Solutions Ltd Personal authentication apparatus
JP2008059200A (en) * 2006-08-30 2008-03-13 Matsushita Electric Works Ltd Fingerprint image input device
JP2009009354A (en) * 2007-06-28 2009-01-15 Hitachi Ltd Finger vein authentication device and information processor
JP2010097483A (en) * 2008-10-17 2010-04-30 Hitachi Ltd Finger vein authentication device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007215899A (en) * 2006-02-20 2007-08-30 Hitachi Information & Control Solutions Ltd Personal authentication apparatus
JP2008059200A (en) * 2006-08-30 2008-03-13 Matsushita Electric Works Ltd Fingerprint image input device
JP2009009354A (en) * 2007-06-28 2009-01-15 Hitachi Ltd Finger vein authentication device and information processor
JP2010097483A (en) * 2008-10-17 2010-04-30 Hitachi Ltd Finger vein authentication device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014183877A (en) * 2013-03-22 2014-10-02 Hitachi Ltd Blood vessel image photographing device

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