JPH0338621B2 - - Google Patents
Info
- Publication number
- JPH0338621B2 JPH0338621B2 JP60059801A JP5980185A JPH0338621B2 JP H0338621 B2 JPH0338621 B2 JP H0338621B2 JP 60059801 A JP60059801 A JP 60059801A JP 5980185 A JP5980185 A JP 5980185A JP H0338621 B2 JPH0338621 B2 JP H0338621B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- living body
- fingerprint
- output voltage
- personal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 44
- 238000012795 verification Methods 0.000 claims description 30
- 230000003287 optical effect Effects 0.000 description 25
- 238000010586 diagram Methods 0.000 description 10
- 239000011521 glass Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
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
- G06V40/40—Spoof detection, e.g. liveness detection
-
- 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
- G06V40/14—Vascular patterns
- G06V40/145—Sensors therefor
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Image Input (AREA)
- Collating Specific Patterns (AREA)
Description
【発明の詳細な説明】
〔概要〕
個人情報入力手段と照合用辞書入力手段および
情報照合手段からなる個人照合システムに、被検
体が生体であることを確認する生体検知手段を付
加し、レプリカ等の複製された被検体による個人
照合システムの悪用を防止する。[Detailed Description of the Invention] [Summary] A living body detection means for confirming that the subject is a living body is added to a personal verification system consisting of a personal information input means, a dictionary input means for verification, and an information verification means, and a replica etc. to prevent misuse of the personal verification system by duplicated subjects.
本発明は個人照合システムに係り、特に生体検
知手段を具えた個人照合装置に関する。
The present invention relates to a personal verification system, and more particularly to a personal verification device equipped with a living body detection means.
情報化社会の進展にともない情報処理システム
の機密保持に関する諸技術が発達している。例え
ばコンピユータルームへの入室管理に粉失や盗難
の可能性の多い従来のIDカードにかわつて、各
個人の指紋等を予め登録しておき入室時に照合す
る個人照合システムが導入され始めている。 BACKGROUND OF THE INVENTION With the advancement of the information society, various technologies related to maintaining the confidentiality of information processing systems are being developed. For example, in place of conventional ID cards that are often lost or stolen to control entry into computer rooms, personal verification systems are being introduced in which each individual's fingerprints are registered in advance and verified upon entering the room.
しかし指紋等による個人の照合も決して万全で
はなく、例えば予め登録されている指紋のレプリ
カ等を作製することによつて、個人照合システム
による検査を通過することができる。そこで被検
体が生体であることを確認できる個人照合システ
ムの開発が望まれている。 However, personal verification using fingerprints or the like is by no means perfect; for example, by creating a replica of a fingerprint that has been registered in advance, it is possible to pass the inspection by the personal verification system. Therefore, it is desired to develop a personal identification system that can confirm that the subject is a living body.
第５図は従来の個人照合装置を示すブロツク図
である。
FIG. 5 is a block diagram showing a conventional personal verification device.
個人情報として指紋を取り入れた従来の個人照
合装置では、第５図に示す如く個人情報入力手段
として指紋センサが用いられており、個人照合装
置は指紋センサ１と情報照合用辞書２と情報照合
手段３によつて構成されている。そしてカード等
の情報照合用辞書２には指紋センサ１を介して予
め登録された指紋が記憶されている。 In a conventional personal verification device that incorporates a fingerprint as personal information, a fingerprint sensor is used as a personal information input means as shown in FIG. 5, and the personal verification device includes a fingerprint sensor 1, an information verification dictionary 2, and an information verification device It is composed of 3. Fingerprints registered in advance via the fingerprint sensor 1 are stored in a dictionary 2 for checking information on a card or the like.
個人の照合に際し指紋センサ１から指紋を入力
すると、入力された指紋と情報照合用辞書２に予
め登録された指紋とを、情報照合手段３によつて
比較照合され合否が判定される。かかる装置にお
いて個人情報入力手段として用いられている指紋
センサの原理図を第６図に示す。 When a fingerprint is input from the fingerprint sensor 1 during personal verification, the input fingerprint is compared with a fingerprint registered in advance in the information verification dictionary 2 by the information verification means 3 to determine pass/fail. FIG. 6 shows a principle diagram of a fingerprint sensor used as personal information input means in such a device.
第６図ａはプリズム型指紋センサでプリズム１
１の斜面に被検体即ち指１２を押し付け、光源１
３から入射した矢印で図示した光がプリズム１１
の斜面で反射され形成された像を、光源１３の反
対側に配設されたTVカメラ１４で撮影しその出
力電圧を装置に入力する。 Figure 6a shows a prism type fingerprint sensor with prism 1.
The subject, that is, the finger 12, is pressed against the slope of light source 1.
The light shown by the arrow entering from 3 is the prism 11
The image reflected and formed by the slope of the light source 13 is photographed by a TV camera 14 disposed on the opposite side of the light source 13, and the output voltage is inputted to the device.
指１２には指紋を形成する凹凸１２ａおよび１
２ｂがありプリズム１１の斜面に指１２を押し付
けると、指紋の凹部１２ａではプリズム１１と空
気の界面に全反射面を形成しており、光源１３か
らプリズム１１の斜面に入射した光を指紋の凹部
１２ａに面した部分で全反射される。一方指紋の
凸部１２ｂではプリズム１１と指紋の凸部１２ｂ
が接しているために、光源１３からプリズム１１
の斜面に入射した光の一部はプリズム１１の斜面
を透過し全反射されない。したがつてプリズムの
斜面で反射された光で形成される像は、全反射光
と非全反射光からなる指紋の凹凸に対応する像で
あり、この像のコントラストの差をTVカメラ１
４で撮影することによつて指紋を電気信号に変換
することができる。 The finger 12 has unevenness 12a and 1 that form a fingerprint.
2b, and when the finger 12 is pressed against the slope of the prism 11, the fingerprint recess 12a forms a total reflection surface at the interface between the prism 11 and the air, and the light incident on the slope of the prism 11 from the light source 13 is reflected by the fingerprint recess 12a. It is totally reflected at the part facing 12a. On the other hand, in the fingerprint convex part 12b, the prism 11 and the fingerprint convex part 12b
are in contact with each other, the light source 13 is connected to the prism 11.
A part of the light incident on the slope of the prism 11 is transmitted through the slope of the prism 11 and is not totally reflected. Therefore, the image formed by the light reflected on the slope of the prism is an image corresponding to the unevenness of the fingerprint, which is made up of totally reflected light and non-totally reflected light, and the difference in contrast of this image is measured by the TV camera 1.
4, the fingerprint can be converted into an electrical signal.
第６図ｂはホログラム型指紋センサで、導光板
を兼ねたガラス平板１５の上面に被検体即ち指１
２を押し付け、反対側からガラス平板１５を介し
てレーザ光源１６で被検体１２を照射している。
ガラス平板１５を透過した光は指１２の面で散乱
されるが、指紋の凹部１２ａで散乱された光はス
ネルの法則によつて、全てガラス平板１５を透過
し下側の空気層に出射していく。一方指紋の凸部
１２ｂで散乱された光の一部はガラス平板１５を
透過し下側の空気層に出射していくが、臨界角度
以上の角度でガラス平板１５と下側の空気層との
界面に入射した光は、界面で全反射され以後ガラ
ス平板１５の内部を導光され伝播していく。 FIG. 6b shows a hologram type fingerprint sensor in which a subject, that is, a finger 1 is placed on the top surface of a glass flat plate 15 which also serves as a light guide plate.
2 is pressed, and the object 12 is irradiated with a laser light source 16 from the opposite side via the glass flat plate 15.
The light transmitted through the glass flat plate 15 is scattered by the surface of the finger 12, but according to Snell's law, all the light scattered by the fingerprint recess 12a passes through the glass flat plate 15 and is emitted into the air layer below. To go. On the other hand, a part of the light scattered by the convex part 12b of the fingerprint passes through the glass flat plate 15 and exits to the lower air layer. The light incident on the interface is totally reflected at the interface and then guided and propagated inside the glass flat plate 15.
ガラス平板１５の一部にガラス平板１５の内部
を伝播していく光を取り出すためのホログラム回
折格子１７が形成されており、ホログラム回折格
子１７で取り出した光をTVカメラ１４で撮影し
その出力電圧を装置に入力する。 A hologram diffraction grating 17 for extracting light propagating inside the glass flat plate 15 is formed in a part of the glass flat plate 15, and the light extracted by the hologram diffraction grating 17 is photographed by a TV camera 14 and its output voltage is measured. input into the device.
指１２の面で散乱された光をガラス平板１５で
導光させることにより、指紋の凹部１２ａで散乱
された光と指紋の凸部１２ｂで散乱された光と
を、光学的に分離できるためにコントラストの良
い指紋像を得ることができる。したがつてこの像
のコントラストの差をTVカメラ１４で撮影する
ことによつて指紋を電気信号に変換することがで
きる。 By guiding the light scattered by the surface of the finger 12 through the glass flat plate 15, it is possible to optically separate the light scattered by the concave portions 12a of the fingerprint from the light scattered by the convex portions 12b of the fingerprint. A fingerprint image with good contrast can be obtained. Therefore, by photographing the difference in contrast of this image with the TV camera 14, the fingerprint can be converted into an electrical signal.
第６図に示す指紋センサは被検体が生体でなく
ても指紋に対応する像が得られれば電気信号を装
置に入力し、一方従来の個人照合装置は指紋セン
サ１から入力された指紋が、情報照合用辞書２に
予め登録された指紋と合致すれば、指紋を入力し
た個人と予め登録された個人とは同一人物である
と判断する。
The fingerprint sensor shown in FIG. 6 inputs an electrical signal to the device if an image corresponding to the fingerprint is obtained even if the subject is not a living body.On the other hand, in the conventional personal verification device, the fingerprint input from the fingerprint sensor 1 is If the fingerprint matches the fingerprint registered in advance in the information matching dictionary 2, it is determined that the individual who entered the fingerprint and the individual registered in advance are the same person.
しかし既に登録されている指紋と同じ情報を出
力する被検体、例えば石膏や軟質ゴム等でレプリ
カを製作しレプリカの指紋を入力することによつ
て、個人照合システムによる検査を通過すること
ができるという問題があつた。 However, by making a replica of a subject that outputs the same information as the already registered fingerprint, such as plaster or soft rubber, and inputting the replica's fingerprint, it is possible to pass the inspection by the personal verification system. There was a problem.
上記問題点は本発明により生体検知手段、個人
情報入力手段、情報照合用辞書及び情報照合手段
を有し、生体検知手段は被検体に対し、440乃至
580nmの短波長の可視光を照射しその反射光を検
知し対応する出力電圧を発生する短波長側光検知
手段と、630nmより長い長波長の可視光を照射し
その反射光を検知し対応する出力電圧を発生する
長波長側光検知手段と、長波長側の光検知手段の
出力電圧に対応して自動的に比較電圧を発生する
比較電圧発生手段と、該比較電圧と短波長側光検
知手段の出力電圧とを比較する比較手段とより構
成され、被検体が生体の指の場合生体検知手段か
ら出力される検知信号によつて、個人情報入力手
段よりの同一検体についての個人情報と、個人情
報照合用辞書よりの個人情報が情報照合手段で照
合されることを特徴とする個人照合装置によつて
解決される。
The above problem can be solved by the present invention, which includes a living body detection means, a personal information input means, an information matching dictionary, and an information matching means.
Short-wavelength light detection means that irradiates visible light with a short wavelength of 580 nm, detects the reflected light, and generates a corresponding output voltage, and irradiates visible light with a long wavelength longer than 630 nm, detects the reflected light, and responds accordingly. Long wavelength side photodetection means for generating an output voltage, comparison voltage generation means for automatically generating a comparison voltage in response to the output voltage of the long wavelength side photodetection means, and detection of the comparison voltage and short wavelength side light. and a comparison means for comparing the output voltage of the means, and when the subject is a living body's finger, the personal information about the same subject from the personal information input means is detected by the detection signal output from the living body detection means. The problem is solved by a personal verification device characterized in that personal information from a dictionary for personal information verification is verified by an information verification means.
なお第１図はかかる本発明の個人照合装置の原
理図としてのブロツク図である。この個人照合装
置は個人情報入力手段１、情報照合用辞書２、情
報照合手段３及び生体検知手段４より構成され、
また生体検知手段４は短波長側光検知手段４１、
長波長側光検知手段４２、比較電圧発生手段４３
及び比較手段４４より構成され、さらに生体検知
手段４よりの検知信号（比較手段４４よりの出
力）によつてはじめて個人情報入力手段によつて
入力された同一被検体の個人情報と情報照合用辞
書よりの個人情報との照合が情報照合手段で行な
われるようになつている。 FIG. 1 is a block diagram illustrating the principle of the personal verification device of the present invention. This personal verification device is composed of a personal information input means 1, an information verification dictionary 2, an information verification means 3, and a living body detection means 4,
In addition, the living body detection means 4 includes short wavelength side light detection means 41,
Long wavelength side light detection means 42, comparison voltage generation means 43
and a comparison means 44, and further includes a dictionary for comparing personal information of the same subject inputted by the personal information input means for the first time based on the detection signal from the living body detection means 4 (output from the comparison means 44). Information matching means is now used to match personal information from other people.
また生体検知手段４における短波長側光検知手
段４１は440乃至580nmの短波長側可視光領域の
光を被検体に照射しその反射波を検知し、対応す
る出力電圧を発生する機能を有し、長波長側光検
知手段４２は630nmより長い波長光領域の光を被
検体に照射し、その反射光を検知し対応する出力
電圧を発生する機能を有し、比較電圧発生手段４
３は長波長側光検知手段よりの出力電圧にもとず
いて比較電圧を発生する機能を有し、この比較電
圧と短波長側光検知手段の出力電圧とは比較手段
４４で比較され、その検知信号によつて情報照合
手段は照合動作を開始する。 Further, the short wavelength side light detection means 41 in the living body detection means 4 has a function of irradiating the subject with light in the short wavelength side visible light region of 440 to 580 nm, detecting the reflected wave, and generating a corresponding output voltage. The long wavelength side light detection means 42 has a function of irradiating the object with light in a wavelength region longer than 630 nm, detecting the reflected light, and generating a corresponding output voltage, and the comparison voltage generation means 4
3 has a function of generating a comparison voltage based on the output voltage from the long wavelength side photodetection means, and this comparison voltage and the output voltage from the short wavelength side photodetection means are compared by the comparison means 44. The information matching means starts a matching operation in response to the detection signal.
即ち人の皮膚に580nm以下の可視光領域の光を
照射し、その反射光を測定すると、その皮膚を無
押圧の状態にしておく場合と押圧した場合とで反
射率が大きく変化するという押圧依存性があり、
この関係を第２図に示す。それによつて第１図に
おいて被検体が人の指の場合、指に圧力を掛ける
前と圧力を掛けた後では短波長側の光検知手段４
１の出力電圧が変化する。したがつて被検体につ
いて長波長側の光検知手段４２の出力電圧に対応
して比較電圧発生手段４３で自動的に比較電圧を
発生し、比較電圧を基準として、被検体に圧力を
掛ける前と圧力を掛けた後の光検知手段４１の出
力電圧の変化を検知すると、これは人の指を押圧
した場合の反射率が大きく変化する押圧依存性に
よるものであることを知ることになる。
In other words, when human skin is irradiated with light in the visible light range of 580 nm or less and the reflected light is measured, the reflectance changes greatly depending on whether the skin is left unpressed or when pressure is applied. sexual,
This relationship is shown in FIG. As a result, in FIG. 1, when the subject is a human finger, the light detection means 4 on the short wavelength side before and after applying pressure to the finger.
1's output voltage changes. Therefore, the comparison voltage generating means 43 automatically generates a comparison voltage corresponding to the output voltage of the photodetection means 42 on the longer wavelength side of the object, and uses the comparison voltage as a reference to determine the voltage before applying pressure to the object. When a change in the output voltage of the light detection means 41 is detected after pressure is applied, it is known that this is due to pressure dependence in which the reflectance changes greatly when a person's finger is pressed.
従つて生体検知手段４によつて得られた検知出
力にもとずいて、個人情報入力手段１を介して入
力された個人情報と、予め情報照合用辞書２に記
憶されている個人情報とを照合すると、被検体の
照合の際の照合条件が新らたに追加されることに
よつて個人照合装置の照合精度が更に高められる
ことになる。 Therefore, based on the detection output obtained by the living body detection means 4, the personal information input through the personal information input means 1 and the personal information previously stored in the information matching dictionary 2 are compared. When matching is performed, the matching accuracy of the personal matching device is further improved by adding a new matching condition for matching the subject.
以下添付図により本発明の実施例について説明
する。第３図は生体検知光学系の一実施例を示す
平面図であり、第４図は生体検知手段の一実施例
を示す回路図である。
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 3 is a plan view showing one embodiment of the living body detection optical system, and FIG. 4 is a circuit diagram showing one embodiment of the living body detection means.
第３図において個人情報入力手段（本実施例で
は指紋センサを用いており以下指紋センサと称す
る）１は、上面に440乃至580nmの短波長側の光
を検知する手段（以下短波長光センサと称する）
４１と、630nmより長い波長側の光を検知する手
段（以下長波長光センサと称する）４２からなる
生体検知光学系を具えており、短波長光センサ４
１は発光ダイオード４１１とホトダイオード４１
２を、また長波長光センサ４２は発光ダイオード
４２１とホトダイオード４２２を有し、それぞれ
矢印方向に移動して指紋センサ１に置かれた被検
体即ち指１２を両側から挟むように構成されてい
る。 In FIG. 3, a personal information input means (in this embodiment, a fingerprint sensor is used, hereinafter referred to as a fingerprint sensor) 1 has a means for detecting light on the short wavelength side of 440 to 580 nm (hereinafter referred to as a short wavelength optical sensor) on its upper surface. )
41, and a means for detecting light with a wavelength longer than 630 nm (hereinafter referred to as a long wavelength optical sensor) 42, and a short wavelength optical sensor 4.
1 is a light emitting diode 411 and a photodiode 41
2, and the long wavelength optical sensor 42 has a light emitting diode 421 and a photodiode 422, each of which is configured to move in the direction of the arrow and pinch the subject, that is, the finger 12 placed on the fingerprint sensor 1 from both sides.
第４図において生体検知手段４は短波長光セン
サ４１と長波長光センサ４２からなる生体検知光
学系と、長波長光センサ４２の出力電圧に対応し
て自動的に比較電圧を発生する手段即ち比較電圧
発生回路４３と、比較電圧と短波長光センサ４１
の出力電圧とを比較する比較手段即ち生体識別用
コンパレータ４４と、指１２に長波長光センサ４
２が接触したことを検知する接触検知用コンパレ
ータ４５から構成されている。 In FIG. 4, the living body detection means 4 includes a living body detection optical system consisting of a short wavelength optical sensor 41 and a long wavelength optical sensor 42, and a means for automatically generating a comparison voltage in response to the output voltage of the long wavelength optical sensor 42. Comparison voltage generation circuit 43 and comparison voltage and short wavelength optical sensor 41
A comparator 44 for biometric identification, and a long wavelength optical sensor 4 on the finger 12.
It is composed of a contact detection comparator 45 that detects that 2 has touched.
生体検知光学系即ち短波長光センサ４１と長波
長光センサ４２が矢印方向に移動し、長波長光セ
ンサ４２が指１２に接触すると電圧Ｖが出力され
る。接触検知用コンパレータ４５に入力されてい
る基準電圧V1と、この出力電圧Ｖとが比較され
出力電圧Ｖが基準電圧V1を超えると、指１２に
長波長光センサ４２が接触したことが認識され、
AND回路４６のｌ端子のレベルが‘1'になる。 The living body detection optical system, that is, the short wavelength optical sensor 41 and the long wavelength optical sensor 42 move in the direction of the arrow, and when the long wavelength optical sensor 42 comes into contact with the finger 12, a voltage V is output. The reference voltage V 1 input to the contact detection comparator 45 is compared with this output voltage V, and when the output voltage V exceeds the reference voltage V 1 , it is recognized that the long wavelength optical sensor 42 has contacted the finger 12. is,
The level of the l terminal of the AND circuit 46 becomes '1'.
同時にこの出力電圧Ｖは比較電圧発生回路４３
に入力され、比較電圧発生回路４３に予め設定さ
れている変換係数ｋと出力電圧Ｖによつて定ま
る、
Vr＝ｋ・Ｖ
なる比較電圧Vrが比較電圧発生回路４３から出
力される。 At the same time, this output voltage V is
The comparison voltage generation circuit 43 outputs a comparison voltage Vr of Vr=k·V, which is determined by the conversion coefficient k and the output voltage V that are input to the comparison voltage generation circuit 43 in advance.
短波長光センサ４１の出力電圧Voと比較電圧
Vrは生体識別用コンパレータ４４で比較される。 Output voltage Vo of short wavelength optical sensor 41 and comparison voltage
Vr is compared by a biometric identification comparator 44.
ここで被検体が生体であれば、短波長光センサ
４１が指１２に接触した直後は
Vo＜Vr
なる関係であるが、押圧が加わるにつれて大小関
係が逆転し
Vo≧Vr
なる関係になる。 Here, if the subject is a living body, immediately after the short wavelength optical sensor 41 contacts the finger 12, the relationship is Vo<Vr, but as pressure is applied, the magnitude relationship is reversed and the relationship becomes Vo≧Vr.
生体識別用コンパレータ４４は短波長光センサ
４１の出力電圧Voと比較電圧Vrのかかる関係を
検知しており、出力電圧Vo≧比較電圧Vrなる関
係になると識別信号を出力し、AND回路４６の
ｓ端子のレベルが‘1'になる。 The biometric identification comparator 44 detects the relationship between the output voltage Vo of the short wavelength optical sensor 41 and the comparison voltage Vr, and outputs an identification signal when the output voltage Vo≧comparison voltage Vr is established, and the s of the AND circuit 46 The level of the terminal becomes '1'.
指１２に長波長光センサ４２が接触してAND
回路４６のｌ端子のレベル‘1'になり、且つ出力
電圧Vo≧比較電圧Vrなる関係になつてAND回
路４６のｓ端子のレベルが‘1'になると、フリツ
プフロツプ（FF）４７がセツトされて指紋セン
サ１から入力された指紋と、情報照合用辞書２に
記憶されている指紋との照合が開始される。なお
フリツプフロツプ（FF）４７は指が生体検知光
学系から離れると、接触検知用コンパレータ４５
の出力レベルが反転しリセツトされる。 When the long wavelength optical sensor 42 contacts the finger 12, AND
When the level of the l terminal of the circuit 46 becomes '1' and the output voltage Vo≧comparison voltage Vr holds, and the level of the s terminal of the AND circuit 46 becomes '1', the flip-flop (FF) 47 is set. Comparison between the fingerprint input from the fingerprint sensor 1 and the fingerprint stored in the information matching dictionary 2 is started. Note that when the finger leaves the living body detection optical system, the flip-flop (FF) 47 activates the contact detection comparator 45.
The output level is inverted and reset.
被検体が生体以外のものであれば、短波長光セ
ンサ４１の出力電圧Voと比較電圧Vrの間に上記
の関係が存在せず、生体識別用コンパレータ４４
から識別信号が出力されることはない。 If the subject is something other than a living body, the above relationship does not exist between the output voltage Vo of the short wavelength optical sensor 41 and the comparison voltage Vr, and the biological identification comparator 44
No identification signal is output from the
このように人の皮膚に特有の580nm以下の可視
光領域において、押圧により反射率が大きく変化
するという押圧依存性を利用した、生体検知手段
からの検知出力にもとずいて、指紋センサ１から
入力された指紋と予め情報照合用辞書２に記憶さ
れている指紋とを照合することによつて、被検体
の個人照合装置の照合機能をさらに高めることが
出来る。 Based on the detection output from the living body detection means, the fingerprint sensor 1 utilizes the pressure dependence in which the reflectance changes greatly depending on pressure in the visible light region of 580 nm or less, which is unique to human skin. By comparing the input fingerprint with the fingerprint stored in advance in the information matching dictionary 2, the matching function of the personal matching device for the subject can be further enhanced.
上述の如く本発明によれば被検体が生体である
場合の検出出力を利用した個人照合システムを提
供することができる。
As described above, according to the present invention, it is possible to provide a personal verification system that utilizes detection output when the subject is a living body.
第１図は本発明の個人照合装置を示すブロツク
図、第２図は人の皮膚の分光反射率特性図、第３
図は生体検知光学系の実施例を示す平面図、第４
図は生体検知手段の実施例を示す回路図、第５図
は従来の個人照合装置を示すブロツク図、第６図
は指紋センサの例を示す原理図で、第６図ａはプ
リズム型指紋センサ、第６図ｂはホログラム型指
紋センサ、である。図において
１は指紋センサ（個人情報入力手段）、２は情
報照合用辞書、３は情報照合手段、４は生体検知
手段、１２は指（被検体）、４１は短波長光セン
サ（短波長側光検知手段）、４２は長波長光セン
サ（長波長側光検知手段）、４３は比較電圧発生
回路（比較電圧発生手段）、４４は生体識別用コ
ンパレータ（比較手段）、４５は接触検知用コン
パレータ、４６はAND回路、４７はフリツプフ
ロツプ（FF）、４１１，４２１は発光ダイオー
ド、４１２，４２２はホトダイオード、をそれぞ
れ表す。
Figure 1 is a block diagram showing the personal verification device of the present invention, Figure 2 is a spectral reflectance characteristic diagram of human skin, and Figure 3 is a diagram showing the spectral reflectance characteristics of human skin.
The figure is a plan view showing an embodiment of the living body detection optical system.
Figure 5 is a circuit diagram showing an embodiment of the living body detection means, Figure 5 is a block diagram showing a conventional personal identification device, Figure 6 is a principle diagram showing an example of a fingerprint sensor, and Figure 6a is a prism-type fingerprint sensor. , FIG. 6b shows a hologram type fingerprint sensor. In the figure, 1 is a fingerprint sensor (personal information input means), 2 is a dictionary for information comparison, 3 is information comparison means, 4 is a living body detection means, 12 is a finger (subject), 41 is a short wavelength optical sensor (short wavelength side 42 is a long wavelength optical sensor (long wavelength side light detection means), 43 is a comparison voltage generation circuit (comparison voltage generation means), 44 is a biometric identification comparator (comparison means), 45 is a contact detection comparator , 46 represents an AND circuit, 47 represents a flip-flop (FF), 411 and 421 represent light emitting diodes, and 412 and 422 represent photodiodes, respectively.
Claims (1)
用辞書及び情報照合手段を有し、生体検知手段は
被検体に対し、440乃至580nmの短波長の可視光
を照射しその反射光を検知し対応する出力電圧を
発生する短波長側光検知手段と、630nmより長い
長波長の可視光を照射しその反射光を検知し対応
する出力電圧を発生する長波長側光検知手段と、
長波長側の光検知手段の出力電圧に対応して自動
的に比較電圧を発生する比較電圧発生手段と、該
比較電圧と短波長側光検知手段の出力電圧とを比
較する比較手段とより構成され、被検体が生体の
指の場合生体検知手段から出力される検知信号に
よつて、個人情報入力手段よりの同一検体につい
ての個人情報と、個人情報照合用辞書よりの個人
情報が情報照合手段で照合されることを特徴とす
る個人照合装置。1. It has a living body detection means, a personal information input means, a dictionary for information matching, and an information matching means, and the living body detection means irradiates the subject with short wavelength visible light of 440 to 580 nm, detects the reflected light, and responds. a short-wavelength light detection means that generates an output voltage of 630 nm, a long-wavelength light detection means that irradiates visible light with a long wavelength longer than 630 nm, detects the reflected light, and generates a corresponding output voltage;
Consisting of a comparison voltage generating means that automatically generates a comparison voltage in response to the output voltage of the photodetection means on the long wavelength side, and a comparison means that compares the comparison voltage with the output voltage of the photodetection means on the short wavelength side. When the subject is a living body's finger, the detection signal output from the living body detection means allows the personal information about the same specimen from the personal information input means and the personal information from the personal information matching dictionary to be matched by the information matching means. A personal verification device characterized in that verification is performed using
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60059801A JPS61221883A (en) | 1985-03-25 | 1985-03-25 | Method and device for personal collation |
| US06/833,276 US4728186A (en) | 1985-03-03 | 1986-02-27 | Uneven-surface data detection apparatus |
| FI860862A FI88752C (en) | 1985-03-03 | 1986-02-28 | Datadetektionsapparat Foer en ojaemn yta och personidentifieringssystem |
| EP86301434A EP0194783B1 (en) | 1985-03-03 | 1986-02-28 | Uneven-surface data detection apparatus |
| CA000503027A CA1246179A (en) | 1985-03-03 | 1986-02-28 | Uneven-surface data detection apparatus |
| DE8686301434T DE3688339T2 (en) | 1985-03-03 | 1986-02-28 | DEVICE FOR DETERMINING DATA OF LEVEL SURFACES. |
| KR1019860001470A KR900006061B1 (en) | 1985-03-03 | 1986-03-03 | Uneuen-surface data detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60059801A JPS61221883A (en) | 1985-03-25 | 1985-03-25 | Method and device for personal collation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61221883A JPS61221883A (en) | 1986-10-02 |
| JPH0338621B2 true JPH0338621B2 (en) | 1991-06-11 |
Family
ID=13123735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60059801A Granted JPS61221883A (en) | 1985-03-03 | 1985-03-25 | Method and device for personal collation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61221883A (en) |
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|---|---|---|---|---|
| JP2692684B2 (en) * | 1988-05-09 | 1997-12-17 | 富士通株式会社 | Uneven shape detection method |
| JP2747489B2 (en) * | 1988-06-24 | 1998-05-06 | 富士通株式会社 | Fingerprint sensor |
| DE68919394T2 (en) * | 1988-09-16 | 1995-03-30 | Fujitsu Ltd | System for detecting a biological object and fingerprint comparison system using this system. |
| CA2003131C (en) * | 1988-11-25 | 1998-06-23 | Seigo Igaki | Biological object detection apparatus |
| JP2573693B2 (en) * | 1989-09-06 | 1997-01-22 | 日本電気セキュリティシステム株式会社 | Image input device |
| JP4085470B2 (en) * | 1998-05-29 | 2008-05-14 | オムロン株式会社 | Personal identification device, personal identification method, and recording medium recording personal identification program |
| US6381347B1 (en) | 1998-11-12 | 2002-04-30 | Secugen | High contrast, low distortion optical acquistion system for image capturing |
| US6671392B1 (en) | 1998-12-25 | 2003-12-30 | Nippon Telegraph And Telephone Corporation | Fingerprint recognition apparatus and data processing method |
| DE60039002D1 (en) | 1999-05-17 | 2008-07-10 | Nippon Telegraph & Telephone | Device and method for surface pattern recognition |
| DE60032286T8 (en) | 1999-06-10 | 2007-09-27 | Nippon Telegraph And Telephone Corp. | Device for recognizing surface shapes |
| US6324020B1 (en) * | 1999-08-04 | 2001-11-27 | Secugen Corporation | Method and apparatus for reduction of trapezoidal distortion and improvement of image sharpness in an optical image capturing system |
| US7123026B2 (en) | 2001-01-23 | 2006-10-17 | Nippon Telegraph And Telephone Corporation | Surface shape recognition sensor and method of manufacturing the same |
| US6518083B2 (en) | 2001-01-31 | 2003-02-11 | Nippon Telegraph And Telephone Corporation | Surface shape recognition sensor and method of manufacturing the same |
| KR100432491B1 (en) | 2001-08-31 | 2004-05-22 | (주)니트 젠 | Method of extracting fingerprint features using ridge direction model |
| JP3887252B2 (en) | 2002-03-15 | 2007-02-28 | 日本電信電話株式会社 | Manufacturing method of surface shape recognition sensor |
| JP5045028B2 (en) * | 2006-08-16 | 2012-10-10 | 富士通セミコンダクター株式会社 | Surface shape sensor and manufacturing method thereof |
| JP4833031B2 (en) * | 2006-11-06 | 2011-12-07 | 富士通セミコンダクター株式会社 | Surface shape sensor and manufacturing method thereof |
| JP4671049B2 (en) * | 2006-11-20 | 2011-04-13 | ソニー株式会社 | Authentication device, registration device, registration method, registration program, authentication method, and authentication program |
| JP4764508B2 (en) | 2007-04-05 | 2011-09-07 | 富士通セミコンダクター株式会社 | Surface shape sensor and manufacturing method thereof |
| US9471764B2 (en) | 2012-07-19 | 2016-10-18 | Apple Inc. | Electronic device switchable to a user-interface unlocked mode based upon spoof detection and related methods |
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| JPS5710881A (en) * | 1980-05-21 | 1982-01-20 | Palmguard Inc | Method and device for recording detail of image on palm for identifier |
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|---|---|---|---|---|
| JPS5710881A (en) * | 1980-05-21 | 1982-01-20 | Palmguard Inc | Method and device for recording detail of image on palm for identifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61221883A (en) | 1986-10-02 |
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