JP2010102740A - Authentication device, authentication method, and computer readable recording medium - Google Patents

Authentication device, authentication method, and computer readable recording medium Download PDF

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Publication number
JP2010102740A
JP2010102740A JP2010016573A JP2010016573A JP2010102740A JP 2010102740 A JP2010102740 A JP 2010102740A JP 2010016573 A JP2010016573 A JP 2010016573A JP 2010016573 A JP2010016573 A JP 2010016573A JP 2010102740 A JP2010102740 A JP 2010102740A
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Prior art keywords
authentication
user
blood vessel
vessel information
unit
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JP2010016573A
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Japanese (ja)
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Kiyoaki Takiguchi
清昭 滝口
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Sony Corp
ソニー株式会社
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Priority to JP2010016573A priority Critical patent/JP2010102740A/en
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Abstract

An object of the present invention is to provide an authentication device, an authentication method, and a computer-readable recording medium that can improve convenience for a person to be authenticated at a low cost.
An authentication apparatus according to the present invention is provided at a position different from an operation target operated by a user, and obtains blood vessel information of the user when holding at least a part of the operation target by a part of the living body of the user. An information acquisition unit, an authentication unit that authenticates a user based on blood vessel information acquired by the blood vessel information acquisition unit, and whether or not to execute a process that is executed according to an operation to be operated based on an authentication result by the authentication unit A determination unit for determining whether or not.
[Selection] Figure 11

Description

  The present invention relates to an authentication device, an authentication method, and a computer-readable recording medium for performing personal authentication.

Conventionally, there have been those using fingerprints, voiceprints, iris, and eardrum blood vessel distribution as personal authentication means. For example, in security applications, a finger is pressed against an authentication device provided in the vicinity of a door at an entrance, the fingerprint is detected by this authentication device, and the door is opened only when it is authenticated that it matches a pre-registered fingerprint. Lock it. Similarly, when using a voiceprint or an iris, the door is unlocked when the voiceprint or iris pattern is registered in advance with the voice or eye facing the authentication device. It has come to be.
Such fingerprints, voiceprints, irises, etc. are in the order of more than tens of thousands of people who have the same pattern, and thus have an excellent aspect as a means for performing personal authentication. It is being used in a wide range of fields including such security applications.

MacGregor P, Welford R, "Veincheck Lends AHand For High Security", E0968 Sensor Review, vol.12, No.3, 1992, page.19-23, EN

However, when performing personal authentication using a conventional authentication device, the user to be authenticated presses the finger against the detection unit of the authentication device, faces his eyes, speaks, or authenticates There is a problem that a special operation for receiving the call must be performed, and there is room for improvement in convenience.
Also, fingerprint and iris patterns are very fine, and it is necessary to detect patterns with high resolution in order to increase authentication accuracy. For this reason, a cost is required for the pattern detection unit in the authentication apparatus, which also hinders cost reduction of the system.

By the way, in recent years, for example, it has been studied to detect the vein pattern of the back of the hand of the person to be authenticated and perform authentication using this (Non-patent Document 1). Since the vein pattern is rough as compared with the fingerprint or iris pattern, the authentication apparatus can detect the pattern with a significantly lower resolution. However, even if the vein pattern of the back of the hand is used in this way, the person to be authenticated must perform a special operation of making the back of the hand face the detection unit of the authentication device in order to receive authentication. That is no different and cannot be an effective solution to the above problem.
The present invention has been made on the basis of such a technical problem, and provides an authentication apparatus, an authentication method, and a computer-readable recording medium that can improve convenience for a person to be authenticated at a low cost. Objective.

For this purpose, the user interface of the present invention is such that when the user takes a natural position when using the user interface, that is, when the home position with respect to the user interface is taken, the identification information acquisition unit displays the user's identification information. The identification information output unit obtains the identification information and outputs the identification information. Here, examples of the user interface include a keyboard, a mouse, a joystick in a personal computer, a handle in a car, a shift lever, and the like. Also, as an example of the position that the user naturally takes when using the user interface, that is, the home position with respect to the user interface, placing a finger at a basic position and operating the mouse when inputting characters on the keyboard For example, covering the grip portion of the mouse with the palm of the hand, or gripping the handle or the shift lever when driving the car. Thus, according to the present invention, since the user identification information is acquired when the user takes the home position with respect to the user interface, the user does not need to perform a special operation.
Other user interfaces include a mouse pad that faces the wrist when operating the mouse, a door knob that touches when opening and closing the door, a handle that touches when holding the bag, and a portable information terminal such as a mobile phone. In the present invention, the back surface of the portable information terminal held at the time can also be included as a user interface.

In the user interface of the present invention, for example, if the blood vessel arrangement pattern is read with infrared rays or the like, the identification information acquisition unit acquires identification information not only when the user is in contact with the user but also when not in contact with the user. be able to. That is, even if a part of the user's body is not in contact with the identification information acquisition unit, the identification information is acquired if it is close to the user, so the user presses a part of the body such as the palm of the hand against the identification information acquisition unit. There is no need to let them go.
The identification information acquisition unit can detect a blood vessel arrangement pattern of the user and acquire the blood vessel arrangement pattern as identification information. For detecting the blood vessel pattern, a method of generating a magnetic field and detecting a blood flow passing through the magnetic field, a detection method using an ultrasonic beam, or the like can be used. Furthermore, the arrangement pattern of the user's veins can be detected as identification information by emitting infrared light with the infrared light emitting unit and detecting the reflected light with the reflected light detection unit. Here, since the oxygen content is different between the artery and the vein, the absorption rate of infrared rays is different, and thus the vein arrangement pattern can be detected.
As the identification information output by the identification information output unit, the detected blood vessel arrangement pattern and vein arrangement pattern can be output as they are, or only a part of them can be output, and the authentication process can be performed externally. Thus, it is also possible to perform authentication based on the detected blood vessel arrangement pattern and vein arrangement pattern, and output whether or not the authentication is possible.

Furthermore, the present invention provides an authentication device including an identification information acquisition unit, an authentication unit, and an authentication result output unit. The authentication apparatus according to the present invention is provided in a user interface such as a keyboard or a mouse, which is an operation target of the person to be authenticated. The identification information acquisition unit is provided at a position where the wrist or palm of the person to be authenticated faces when the person to be authenticated operates the operation target, that is, a position in consideration of the action of the person to be authenticated. It is said. More specifically, the identification information acquisition unit acquires the identification information of the person to be authenticated when the person to be authenticated operates the operation target, and the authentication unit performs authentication based on the identification information, and then outputs the authentication result. The unit outputs the authentication result in the authentication unit. As a result, the person to be authenticated can be authenticated unconsciously without requiring a special operation for receiving authentication.
Further, the identification information acquisition unit can irradiate the person to be authenticated with infrared rays, and can acquire the arrangement pattern of the vein of the person to be authenticated as identification information based on the reflected light. Furthermore, in the authentication apparatus of the present invention, a registration information storage unit storing registration information of a person who has been registered in advance, identification information acquired by the identification information acquisition unit, and registration information stored in the registration information storage unit And a verification result output unit can output a verification result in the information verification unit as an authentication result.

  Furthermore, the present invention provides a device characterized in that a user's vein arrangement pattern is acquired as identification information, and a specific process is performed for each user based on an authentication result based on the identification information. Here, as a device, for example, an input device such as a personal computer, a moving body such as an automobile, a bicycle, and a motorcycle, a door, and the like are widely included. In the device of the present invention, the identification information acquisition unit is provided in an operation unit that receives a user operation. As is well known, examples of operation means in an input device such as a personal computer include a keyboard, a mouse, and a joystick, and examples of operation means in a moving body such as an automobile include a handle and a shift lever. Various specific processes performed by the processing means may be considered depending on the type of device. For example, in the case where the device is a personal computer, in addition to access restrictions, a change in input settings, a change in screen settings, and the like can be performed as specific processing for each user.

  Furthermore, the portable information terminal of the present invention has an operation unit that receives an input from the outside, and an infrared light emitting unit is provided on the back of the operation unit. More specifically, the infrared light emitting unit emits infrared light toward a predetermined body part of the person to be authenticated holding the portable information terminal, for example, the hand of the person to be authenticated, and the reflected light detecting unit is emitted from the infrared light emitting unit. Infrared reflected light from the person to be authenticated is detected. Next, the image acquisition unit acquires an image based on the difference in infrared absorption rate of the person to be authenticated based on the reflected light detected by the reflected light detection unit, and the information output unit obtains information based on the image acquired by the image acquisition unit. It outputs. In the portable information terminal according to the present invention, since the infrared light emitting unit is provided on the back of the operation unit, it is possible to acquire the image information of the authenticated person without requiring a special operation for receiving the authenticated person. Can do. This is because the person to be authenticated usually performs the operation while holding the portable information terminal in his / her palm, and the palm of the person to be authenticated usually touches or approaches the back of the operation unit.

  As described above, according to the present invention, it is possible to simplify the system and improve convenience for the person to be authenticated.

It is a figure which shows the example of a vein pattern. It is a figure which shows the absorption spectrum of venous blood, and the zone | band of the near-infrared light used for a vein detection. It is a figure which shows the structure of an authentication device. It is a figure which shows the structure of a vein pattern detection part. It is a figure which shows arrangement | positioning of the vein pattern detection part in the case of providing an authentication device in a keyboard. It is a figure which shows the flow which detects a vein pattern in an authentication device. It is a figure which shows arrangement | positioning of the vein pattern detection part in the case of providing an authentication device in a mouse | mouth. It is a figure which shows arrangement | positioning of the vein pattern detection part in the case of providing an authentication device in a mouse pad. It is a figure which shows arrangement | positioning of the vein pattern detection part in the case of providing an authentication device in the steering wheel of a motor vehicle. It is a case where an authentication device is provided in a shift lever of an automobile, and shows a state in which a vein pattern detection unit is arranged at a position where a vein pattern of a palm portion is detected. It is a figure which shows the state which has arrange | positioned the vein pattern detection part in the position which detects the vein pattern of a wrist part. It is a figure which shows arrangement | positioning of the vein pattern detection part in the case of providing an authentication device in a doorknob. It is a figure which shows arrangement | positioning of the vein pattern detection part in the case of providing an authentication device in a mobile telephone.

Hereinafter, the present invention will be described in detail based on the present embodiment shown in the accompanying drawings.
In the present embodiment, an authentication system that performs authentication based on a vein pattern (blood vessel arrangement pattern, vein arrangement pattern) of a person to be authenticated (user) and restricts access to a computer terminal is taken as an example.
First, the reason why the person to be authenticated can be authenticated using the vein pattern will be described with reference to FIGS. 1 and 2.
FIG. 1 shows an example of a vein pattern on the inner side of the human arm (the palm side). As shown in (a) to (c) of FIG. 1, the vein patterns are various for each individual. Moreover, the fingerprint exists only on a part of the human body, whereas the vein pattern exists throughout the human body. Further, since the vein pattern hardly shows changes over time, it can be used for personal authentication in the same manner as the vein pattern on the back of the hand mentioned in the prior art.

  Just as the vein patterns on the inside of the human arm (palm side) vary from person to person, the vein pattern on the palm of the human body and the vein pattern at the fingertips of the human body vary from person to person. It is. Therefore, not only the vein pattern on the inner side (palm side) of the human arm but also the vein pattern on the palm of the human body and the vein pattern on the fingertip of the human body can be used for personal authentication.

  FIG. 2 shows the absorption spectrum of venous blood and the near-infrared light band used for vein detection. As shown in FIG. 2, in this embodiment, it is proposed to optically image a vein pattern within a wavelength range of 750 to 950 nanometers (nm). In the range of 750 to 950 nanometers (nm), there is no biological material having a large absorption band other than hemoglobin, so only the vein can be imaged. Here, an example in which a vein pattern inside the human arm (the palm side) is optically imaged within a wavelength range of 750 to 950 nanometers (nm) is as shown in FIG.

Next, a configuration related to vein pattern detection in the authentication device (authentication apparatus) 10 will be described with reference to FIG.
As shown in FIG. 3, the authentication device 10 includes a sensor 11 that detects the proximity or contact of the person to be authenticated (user) 20 to the authentication device 10, and vein pattern data (registered information of the person to be authenticated) registered in advance. Is stored in a registration data storage unit (registration information storage unit) 12, a vein pattern detection unit (identification information acquisition unit, identification information acquisition unit, image information acquisition unit) 13 that detects a vein pattern of the person 20 to be authenticated, a vein pattern An authentication determination unit (authentication unit, information verification unit, authentication means) 14 for performing authentication determination by analyzing the vein pattern detected by the detection unit 13 and collating with the vein pattern stored in the registration data storage unit 12, authentication determination A result sending unit (identification information output unit, authentication result output unit, image information output unit) 15 for sending the authentication determination result in the unit 14; As the sensor 11, a conventionally used sensor such as a proximity switch using a change in capacitance due to the proximity of a person, a proximity switch using light reflection or a photoelectric switch, or the like can be used.

  By the way, the vein pattern data of a predetermined user 20 is registered in the registration data storage unit 12 in advance. In this registration, the person to be authenticated 20 makes the vein pattern detection unit 13 in advance by making the palm, wrist, etc. face the vein pattern detection unit 13 in a predetermined position of his / her body, for example, each application example described later. The detected data is stored in the registration data storage unit 12 by performing the predetermined operation for registration by detecting the own vein pattern.

The vein pattern detection unit 13 detects a reflected light when the infrared ray emitted from the light emitting unit 16 and the infrared ray emitted from the light emitting unit 16 is reflected by the person 20 to be authenticated, and is a one-dimensional CCD. And a reflected light detection unit 17 composed of a line sensor using (Charge Coupled Device).
Here, for example, as shown in FIG. 4, the light emitting section 16 can be formed in a line shape by arranging a plurality of light emitting lamps 16a. Further, as shown in FIG. 4, the reflected light detection unit 17 can be arranged in a pair on both sides of the light emitting unit 16.
The detection of the vein pattern by the vein pattern detection unit 13 is not limited to the case where a predetermined body part of the person 20 to be authenticated is in contact with the vein pattern detection unit 13, but when the person 20 is in proximity, that is, the person 20 to be authenticated is a vein. This is possible even when the pattern detection unit 13 is not in contact. This is based on the fact that the authentication using the vein pattern does not need to detect fine irregularities unlike the fingerprint authentication, and can capture the vein pattern as an image. Therefore, when the reflected light detection unit 17 detects the vein pattern, it is possible to detect at a resolution lower than the resolution used when detecting fine irregularities of the fingerprint.

  The authentication device 10 having the above configuration is provided as an operation target of the person 20 to be authenticated. As will be described later, the position where the authentication device 10, more specifically, the vein pattern detection unit 13 is arranged in the operation target of the authentication subject 20 is extremely important in the present invention. Hereinafter, as an application example of the configuration as described above, when the operation target of the person to be authenticated 20 is a user interface (application examples 1 to 6), when the operation target is a door knob (application example 7), the operation target is portable. A case of application (application example 8) will be described.

(Application example 1)
FIG. 5 shows an arrangement of the vein pattern detection unit 13 on the keyboard (user interface, operation target, operation means) 30. Here, as is well known, the keyboard 30 constitutes a part of a personal computer (device). That is, the personal computer is provided with a keyboard 30 as an input device in addition to a main body, a monitor, and the like. In this application example, an example in which the authentication device 10 is provided on the keyboard 30 is shown.
When the authentication device 10 is provided on the keyboard 30, a vein pattern in the vicinity of the wrist of the person 20 to be authenticated is detected as shown in FIG.
As shown in FIG. 5B, the keyboard 30 has a plurality of keys 31 and an outer frame 32. The outer frame 32 is provided with a vein pattern detection unit 13. The vein pattern detection unit 13 does not need to be provided on the entire circumference of the outer frame 32 and may be provided at a position where the vein pattern of the person 20 to be authenticated can be effectively acquired. That is, when the person to be authenticated 20 inputs characters on the keyboard 30 using ten fingers, the finger is usually placed at a position called a home position. Here, the home position with respect to the keyboard 30 refers to the position of the basic hand or arm on which a finger is placed during “touch typing” in which input is performed without looking at the keyboard 30. Specifically, the QWERTY array In the keyboard shown in FIG. 3, the left hand is placed on “A”, “S”, “D”, “F”, and the right index finger is placed on “J”, “K”, “L”, “;” Home position. This home position is a position that is naturally taken when the person to be authenticated 20 uses the keyboard 30. By associating this home position with authentication, it is not necessary to force the person to be authenticated 20 to perform an operation only for authentication. . In other words, by providing the vein pattern detection unit 13 at a position facing the wrist of the person to be authenticated 20 in a state where the person 20 to be authenticated has taken the home position, the vein pattern of the person 20 to be authenticated can be effectively obtained. Can be acquired.

  When the person 20 to be authenticated uses the keyboard 30 shown in FIG. 5B, when the finger of the person 20 to be authenticated is placed at the home position, the vein pattern detection unit 13 faces the wrist of the person 20 to be authenticated. Will be. That is, the vein pattern detection unit 13 faces the range surrounded by the symbol (A) in FIG. In this state, when the infrared ray is emitted from the light emitting unit 16 of the vein pattern detecting unit 13, the reflected light at the line-shaped portion indicated by reference numerals (b) and (c) in FIG. Is done. Thereby, the pattern of the position where the vein exists can be detected in the portions indicated by the symbols (b) and (c).

FIG. 6 shows a flow of detecting a vein pattern in the authentication device 10. This process is performed when the person 20 to be authenticated contacts or approaches the authentication device 10.
First, the sensor 11 constantly monitors whether or not the person 20 to be authenticated has contacted or approached the authentication device 10 (even at predetermined time intervals). Here, it is assumed that the sensor 11 detects that the person 20 to be authenticated has contacted or approached the authentication device 10 (step S101). In response to this, infrared light of a predetermined output level is emitted from the light emitting unit 16 in the vicinity of the wrist (or palm) of the person 20 to be authenticated (step S102). The adjustment of the light emission timing and light emission level of the light emitting unit 16 is controlled by the authentication determining unit 14.

When the infrared light emitted to the person 20 to be authenticated in step S102 is reflected by a part of the person 20 to be authenticated, the reflected light detection unit 17 detects this reflected light. When the reflected light detection unit 17 detects the reflected light, it captures an image of the vein pattern of the person 20 to be authenticated in the portions (b) and (c) shown in FIG. 1 (step S103).
In step S103, when the image of the vein pattern of the person 20 to be authenticated is captured, this data is sent to the authentication determination unit 14, and the process proceeds to the subsequent step S104. The authentication determination unit 14 extracts features of the vein pattern from the obtained vein pattern image based on predetermined logic. That is, a process of optically analyzing the difference in reflected light (difference in infrared absorption rate) due to the difference in the subcutaneous tissue of the portion irradiated with infrared rays of the person 20 to be authenticated is performed (step S104).

  Subsequently, the vein pattern from which the feature is extracted is collated with the vein pattern stored in the registered data storage unit 12 (step S105), and it is determined whether or not both match (step S106). If both match, it is determined that authentication has been performed (step S107), and the process proceeds to step S108.

  On the other hand, if the vein pattern from which the feature is extracted does not match the vein pattern stored in the registered data storage unit 12, it is determined in step S109 that authentication is impossible, and the process proceeds to step S108. Thereafter, the result sending unit 15 outputs an authentication determination result (collation result) in the authentication determination unit 14, that is, a result indicating that authentication is impossible, at an appropriate timing (step S108). This output is, for example, output by voice or text on a personal computer main body or a monitor. Thereby, the to-be-authenticated person 20 can easily recognize that he / she is determined not to be authenticated.

If it is determined in step S107 that authentication has been performed, then the result sending unit 15 outputs the authentication determination result in the authentication determination unit 14 at an appropriate timing (step S108).
Note that the output in step S108 may be performed when the person to be authenticated 20 operates, for example, an operation unit on the device side, for example, the keyboard 30 or the mouse. Here, as described above, the keyboard 30 shown in FIG. 5 is a part of a personal computer, a notebook computer, or the like. In this case, the authentication determination result is appropriately sent to the device side, for example, the control unit of the personal computer. Is output. Here, according to the result of the authentication determination, for example, not only the access of the authenticated person 20 to the personal computer or the like is permitted, but also the specification of the personal computer or the like can be set to a specification adapted to the authenticated person 20. That is, the authentication determination result can be used to personalize the input settings and the like on the device (for example, personal computer, notebook computer, PDA) to which the authentication determination result is sent. For example, if the authenticated person 20 who has been authenticated is a person who inputs Japanese, the input setting on the personal computer side can be automatically set for Japanese input. For example, when a family shares a personal computer and it is determined that the person to be authenticated 20 is a child, the screen settings and input settings on the personal computer side are switched to those for a child. It may be. Such specific processing according to the person to be authenticated 20 can be performed, for example, by the CPU on the device side.

  When the sensor 11 does not detect the contact or proximity of the person 20 to be authenticated for a certain time after the authentication is established, the authentication determination unit 14 detects this, and the result sending unit 15 determines the determination result data. Is supposed to be erased. This resets the authentication. For example, after the authentication is established, the user may leave the seat for a long time with the personal computer activated, or may go out without forgetting to turn off the personal computer. In this case, it is not preferable in terms of security to continue to be determined that authentication is possible.

  The flow of detecting the vein pattern in the authentication device 10 has been described above. The same applies to the following application examples.

(Application example 2)
FIG. 7 shows the arrangement of the vein pattern detection unit 13 in the mouse (user interface, operation target, operation means) 40. Here, as is well known, the mouse 40 constitutes a part of a personal computer (device). That is, the personal computer includes a mouse 40 as an input device in addition to a main body, a monitor, and the like. In this application example, an example in which the authentication device 10 is provided in the mouse 40 is shown.
When the authentication device 10 is provided in the mouse 40, a vein pattern near the palm of the person 20 to be authenticated is detected as shown in FIG. This is because when the person 20 to be authenticated operates the mouse 40, the person 20 to be authenticated usually operates to cover the grip portion 41 of the mouse 40 with the palm. That is, the position of the hand when performing this operation is the home position of the person 20 to be authenticated with respect to the mouse 40. Therefore, in Application Example 2, the vein pattern detection unit 13 is disposed on the grip portion 41 of the mouse 40.
Even when the person to be authenticated 20 places his / her palm on the grip portion 41 as if the palm is slightly rounded and the dent is formed on the palm, authentication based on the vein pattern is possible. In this case, for example, a predetermined conversion process is applied to the vein pattern of the person to be authenticated 20 stored in the registration data storage unit 12 to generate a vein pattern in a state where the palm is indented, and the image is actually captured. It is only necessary to collate with the vein pattern.

(Application example 3)
FIG. 8 shows the arrangement of the vein pattern detection unit 13 in the mouse pad (user interface, operation target, operation means) 50. Here, as is well known, the mouse pad 50 is used together with the mouse 40 which is a part of the personal computer. In the present embodiment, the mouse pad 50 is also a part of the personal computer, that is, a part of the device. Shall be handled.
When the authentication device 10 is provided on the mouse pad 50, a vein pattern near the wrist of the person 20 to be authenticated is detected as shown in FIG. As shown in FIG. 8 (b), the person 20 to be authenticated usually operates the mouse 40 contained in the palm of the hand with the wrist as an axis on the mouse pad 50. Will be in contact with or close to. That is, the position of the hand when performing this operation is the home position of the person 20 to be authenticated with respect to the mouse pad 50. Therefore, in Application Example 3, the vein pattern detection unit 13 is arranged on a part of the mouse pad 50.
The authentication determination result when the authentication device 10 is provided on the mouse pad 50 can be transmitted by connecting the vein pattern detection unit 13 provided on the mouse pad 50 to the main body of the personal computer, for example.

(Application example 4)
FIG. 9 shows an arrangement of the vein pattern detection unit 13 in a vehicle handle (user interface, operation target, operation means) 60. When the automobile handle 60 is used as the authentication device 10, a vein pattern near the palm of the person 20 to be authenticated is detected as shown in FIG. Here, as is well known, a vehicle (device) is provided with a handle 60 as a vehicle operating means in a driver's seat, and the handle 60 constitutes a part of the vehicle. When the person 20 to be authenticated sits in the driver's seat, as shown in FIG. 9B, the person 20 to be authenticated shows the right end portion 61a and the left end portion 61b of the handle 60 as viewed from the person 20 to be authenticated. Usually you will hold. That is, the position of the hand when this operation is performed is the home position of the person 20 to be authenticated with respect to the handle 60. Therefore, in the application example 4, the vein pattern detection unit 13 is disposed at the right end portion 61a and the left end portion 61b of the handle 60.

Examples of usage of the authentication determination result in the authentication determination unit 14 include the following.
For example, by sending the authentication determination result in the handle 60 to the engine control system of the automobile, it is possible to refuse engine start by the person 20 who is not registered in the registration data storage unit 12 or to sound a horn. Therefore, it is possible to effectively prevent the car from being stolen.
Further, for example, in the case where vein patterns of a plurality of authenticated persons 20 are registered in the registered data storage unit 12, the seat of the driver's seat according to the pre-registered body shape of each authenticated person 20 based on the authentication determination result The arrangement / height may be changed.
Further, for example, a vein pattern of a child of a car owner may be registered in the registration data storage unit 12, and a car horn may be automatically sounded when the child's vein pattern is authenticated. .

(Application example 5)
FIG. 10 shows the arrangement of the vein pattern detection unit 13 in the shift lever (user interface, operation target, operation means) 70 of the automobile. When the authentication device 10 is provided in the shift lever 70 of the automobile, a vein pattern near the palm of the person 20 to be authenticated is detected as shown in FIG. Here, as is well known, the automobile (device) is provided with a shift lever 70 as an operation means of the automobile near the driver's seat, and the shift lever 70 constitutes a part of the automobile. When the shift lever 70 as shown in FIG. 10 is operated, the person 20 to be authenticated inevitably places his palm so as to cover the upper surface 71 of the knob portion of the shift lever 70. That is, the position of the hand when performing this operation is the home position of the person 20 to be authenticated with respect to the shift lever 70. Therefore, in Application Example 5, the vein pattern detection unit 13 is arranged on the knob portion upper surface 71 of the shift lever 70.
The usage of the authentication determination result in the authentication determination unit 14 can be the same as in the above application example 4.

(Application example 6)
In the case where the authentication device 10 is provided in the shift lever 70 of the automobile, the example in which the vein pattern detection unit 13 is arranged on the knob portion upper surface 71 of the shift lever 70 is shown in the application example 4, but the arrangement as shown in FIG. Good.
That is, when the authentication device 10 is provided on the shift lever 70 of the automobile, a vein pattern near the wrist of the person 20 to be authenticated can be detected as shown in FIG.
As described above, when the person 20 to be authenticated operates the shift lever 70, the person 20 to be authenticated inevitably places his palm so as to cover the upper surface 71 of the knob portion of the shift lever 70. When the position is taken, as shown in FIG. 11B, the wrist of the person 20 to be authenticated is opposed to the shaft portion 72 of the shift lever 70 obliquely. Therefore, in the application example 6, as illustrated in FIG. 11C, the vein pattern detection unit 13 is disposed on a part of the shaft portion 72 of the shift lever 70. Here, the light emitting unit 16 constituting the vein pattern detecting unit 13 emits infrared rays to the wrist of the subject 20 when the subject 20 takes the home position with respect to the shift lever 70. The infrared rays are irradiated obliquely at a predetermined angle with respect to the shaft portion 72.
The usage of the authentication determination result in the authentication determination unit 14 can be the same as in the above application example 4.

(Application example 7)
FIG. 12 shows the arrangement of the vein pattern detection unit 13 in the door knob (user interface, operation target, operation means) 80. Here, as is well known, the door knob 80 is a component of the door (device) 81.
When the authentication device 10 is provided in the doorknob 80, a vein pattern near the palm of the person 20 to be authenticated is detected as shown in FIG. When the person to be authenticated 20 opens and closes the door, the person to be authenticated 20 inevitably covers the door knob 80 with a palm. That is, the position of the hand when this operation is performed is the home position of the person 20 to be authenticated with respect to the door knob 80. Therefore, in Application Example 7, the vein pattern detection unit 13 is disposed in a part of the door knob 80.
The authentication determination result by the authentication determination unit 14 can be used for security, for example. If the door is unlocked only when the authentication determination result is authentic, the intrusion into the building other than the registrant can be prevented. Can be blocked. In addition, when the authentication determination result is unauthenticated, the door may not be unlocked and, for example, an alarm may sound.

(Application example 8)
FIG. 13 shows an arrangement of the vein pattern detection unit 13 in the mobile phone (user interface, operation target, portable information terminal) 90.
When the authentication device 10 is provided in the mobile phone 90, a vein pattern near the palm of the person 20 to be authenticated is detected as shown in FIG. When the person 20 to be authenticated operates the mobile phone 90, the mobile phone 90 is held on the back surface 92 of the operation unit 91 (operation means) as shown in FIGS. 13 (b) and 13 (c). That is, the position of the hand when this operation is performed is the home position of the person 20 to be authenticated with respect to the mobile phone 90. Therefore, in Application Example 8, the vein pattern detection unit 13 is arranged on a part of the back surface 92 of the mobile phone 90.
Here, if the fingerprint authentication detection unit is provided in the mobile phone 90, it is conceivable to provide the detection unit on a surface (side surface of the mobile phone 90) orthogonal to the operation unit 91 of the mobile phone 90. However, there are various ways of holding the mobile phone 90 depending on the person, and when the person 20 to be authenticated operates the mobile phone 90, the finger of the person 20 to be authenticated does not necessarily touch the side of the mobile phone 90. The person 20 needs to perform an operation only for authentication. On the other hand, by arranging the vein pattern detection unit 13 in consideration of the home position of the person 20 to be authenticated as in the present embodiment, it is not necessary to force the person 20 to be authenticated only for authentication. .

Examples of usage of the authentication determination result in the authentication determination unit 14 include the following.
For example, if the mobile phone 90 can be used only when the authentication determination result by the authentication determination unit 14 is authentic, misuse by others when the mobile phone 90 is lost can be prevented.
In addition, for example, even when a plurality of persons share the mobile phone 90 and vein patterns of a plurality of authenticated persons 20 are registered in the registration data storage unit 12, a specific process for electronic payment or the like is specified. Restrictions that can be performed only by a person may be provided.
As described above, as an application example 8, the arrangement of the vein pattern detection unit 13 in the case where the authentication device 10 is provided in the mobile phone 90 has been described. In this case, the vein pattern detection unit 13 can be provided at a position where the palm of the subject 20 faces. Also, in the case where the authentication device 10 is provided in the electronic notebook or PDA, when the authenticated person 20 operates them, the palm of the authenticated person 20 is in contact with or close to the back of the operation surface of the electronic notebook or PDA. Take a good home position. Therefore, even when the authentication device 10 is provided in an electronic notebook or PDA, it is effective to provide a vein pattern detection unit 13 that detects a palm vein pattern on the back of the operation surface of the device.

In the above-described authentication device 10 and various user interfaces to which the authentication device 10 is applied, the vein pattern detection unit 13 performs authentication by detecting a vein pattern near the palm or wrist of the person 20 to be authenticated. The configuration. As a result, it is possible to perform personal authentication similar to the case where a fingerprint or an iris is used. Moreover, since the vein pattern is much coarser than the pattern such as fingerprints and irises, the pattern resolution required for performing the verification process in the authentication determination unit 14 is low, and the infrared light emitting unit 16 and the reflected light detection Since the vein pattern detection unit 13 configured by the unit 17 is also simpler in structure than the fingerprint detection unit in the prior art, the cost of the authentication device 10 can be reduced.
In addition, the arrangement of the vein pattern detection unit 13 is set based on the position that the person to be authenticated 20 naturally takes when using the user interface or the like provided with the authentication device 10, in other words, based on the home position with respect to the user interface. Yes. As a result, the person 20 to be authenticated can detect the vein pattern unconsciously without performing a special operation only for authentication. Therefore, the convenience for the person 20 to be authenticated is greatly improved.

  In the above embodiment, an example of detecting a vein pattern near the palm or a vein pattern near the wrist has been described. However, the vein pattern is not limited to these, and the home position of the user 20 to be authenticated with respect to the user interface Depending on the case, for example, the vein pattern of the fingertip may be detected. At first glance, the idea of detecting a fingertip vein pattern appears to be similar to fingerprint authentication, but when detecting a fingertip vein pattern, the pattern resolution required to perform verification processing in the authentication determination unit 14 Therefore, the cost of the authentication device 10 can be reduced because the structure is simpler than that of the conventional fingerprint detection unit. In addition, even if the fingertip is not necessarily in close contact with the authentication device 10, it is possible to detect the vein pattern of the fingertip as long as the fingertip is close to the authentication device 10, so that higher authentication accuracy than fingerprint authentication can be expected. .

In the above-described embodiment, the vein pattern detection unit 13 is configured by the line-shaped light emitting unit 16 and the reflected light detection units 17 on both sides thereof, but is not limited thereto. It is also possible to adopt other configurations such as arranging them in a dot matrix form.
In the above embodiment, the keyboard 30, mouse 40, and the like are given as the operation targets. However, the operation targets in the present invention are not limited to these, and a bag or a desk drawer may be used as the operation target. For example, a vein pattern detection unit 13 may be provided on the handle of the bag to detect a vein pattern near the palm. In addition, a vein pattern detection unit 13 may be provided in the handle of the drawer of the desk so as to detect the vein pattern of the fingertip. And the authentication determination result in the authentication determination part 14 can be used for uses, such as security, by using it for opening and closing of a bag or a drawer, and unlocking.

In the above embodiment, infrared light is used as the vein pattern detection means. However, the present invention is not limited to this, and other means can be used as appropriate.
For example, a plurality of capacitance detection elements may be arranged in a dot matrix in a part of the user interface or operation target, and the blood vessel distribution can be detected from a change in capacitance due to blood flow.
In addition, an ultrasonic beam irradiation unit is provided in a part of the user interface or operation target, and the ultrasonic beam irradiated from the ultrasonic beam irradiation unit to the inside of the arm of the person to be authenticated 20 is caused by blood cells that are moving reflectors. It is good also as a structure which detects the reflected wave reflected by a detection means. In this case, the frequency of the reflected wave (reception frequency) is shifted according to the moving speed of the blood cell by the Doppler effect as compared with the transmission frequency of the ultrasonic beam in the ultrasonic beam irradiating means. A blood vessel distribution pattern can be obtained from the flow velocity distribution.

Furthermore, instead of the light-emitting lamp 16a of the light-emitting unit 16 shown in FIG. 4, a plurality of magnetic heads are provided as magnetic field generating means, and this magnetic head generates a magnetic field along the direction in which the light-emitting units 16 are continuous. It is also possible to provide a detecting means for detecting an electrical change such as a generated voltage or current. That is, when a magnetic field is applied by the magnetic field generating means, an induced electromotive force is generated when blood containing a lot of charged particles passes in a direction orthogonal to the magnetic field. Here, the magnetic flux density of the magnetic field is B, the blood vessel diameter is d, the blood flow velocity is v, and the induced electromotive force e is
e = Bdv
It becomes.
Here, if the values of the magnetic flux density B and the blood vessel diameter d are made constant and the induced electromotive force e is detected, the blood flow velocity v can be measured. The presence of blood vessels can be specified from the blood flow velocity distribution that can be detected in this way, and a blood vessel distribution pattern can be obtained.
Based on the measured flow velocity v, the blood flow rate Q is
Q = π × (d / 2) 2 × v
Is required. Here, there are direct current and alternating current excitation methods for generating a magnetic field, but the induced electromotive force e is weak, and the direct current method has problems such as noise and amplifier drift. It is preferable to use an AC type using a square wave.

The authentication device 10 of the above embodiment is configured to detect either the vein pattern near the wrist or the vein pattern near the palm, but it is of course possible to use a combination of these. For example, in the shift lever 70 of the automobile shown in FIGS. 10 and 11, the vein pattern detection unit 13 that detects the vein pattern near the palm is provided on the upper surface 71 of the knob portion, and the wrist portion 72 is provided on the shaft 72 of the shift lever 70. A vein pattern detection unit 13 for detecting the vein pattern may be provided.
In addition to this, unless departing from the gist of the present invention, the configuration described in the above embodiment is selected, changed to another configuration, rearrangement of the configuration described in the above embodiment, some omission Etc. are possible.

DESCRIPTION OF SYMBOLS 10 ... Authentication device (authentication apparatus), 11 ... Sensor, 12 ... Registration data storage part (registration information storage part), 13 ... Vein pattern detection part (identification information acquisition part, identification information acquisition means, image information acquisition part), 14 ... authentication determination part (authentication part, information collation part, authentication means), 15 ... result sending part (identification information output part, authentication result output part, image information output part), 16 ... light emitting part (infrared light emitting part), 17 ... Reflected light detection unit, 20 ... person to be authenticated (user), 30 ... keyboard (user interface, operation object, operation means), 40 ... mouse (user interface, operation object, operation means), 50 ... mouse pad (user interface, Operation object, operation means), 60 ... handle (user interface, operation object, operation means), 70 ... shift lever (user interface, operation means) Subject, operating means), 80 ... door knob (user interface, the operation target, the operation means), 90 ... mobile phone (user interface, the operation target, the portable information terminal), 91 ... operation part (operation means), 92 ... rear

Claims (11)

  1. A blood vessel information acquisition unit that is provided at a position different from an operation target operated by a user and acquires the blood vessel information of the user when the user's living body grips at least a part of the operation target;
    An authentication unit for authenticating the user based on the blood vessel information acquired by the blood vessel information acquisition unit;
    A determination unit that determines whether or not to execute a process executed in accordance with the operation of the operation target based on an authentication result by the authentication unit;
    An authentication device comprising:
  2.   The authentication apparatus according to claim 1, wherein the blood vessel information is a user's vein arrangement pattern.
  3.   The authentication apparatus according to claim 1, wherein the blood vessel information acquisition unit is separated from a part of a living body of a user who acquires the blood vessel information by the blood vessel information acquisition unit.
  4.   The blood vessel information acquisition unit according to claim 3, wherein the blood vessel information acquisition unit acquires the blood vessel information from a non-contact portion that is not in contact with the operation target when the user grips the operation target in a part of the living body. Authentication device.
  5.   The authentication apparatus according to claim 1, wherein the blood vessel information acquisition unit is in contact with a part of a living body of a user who acquires the blood vessel information by the blood vessel information acquisition unit.
  6. A user detection unit for detecting proximity or contact of the user;
    The authentication device according to any one of claims 1 to 5, wherein the blood vessel information acquisition unit starts acquiring the blood vessel information when the user detection unit detects proximity or contact of the user.
  7.   The authentication apparatus according to claim 6, wherein the user detection unit detects a capacitance and detects the proximity or contact of the user based on the detected change in the capacitance.
  8.   The determination unit resets the authentication result by the authentication unit when the user detection unit does not detect the proximity or contact of the user until a predetermined specified time elapses after the user authentication is established, The authentication device according to claim 6 or 7.
  9. The operation target is a doorknob,
    The authentication device according to claim 1, wherein the determination unit determines whether or not the user can enter and leave the building based on an authentication result by the authentication unit.
  10. Obtaining the blood vessel information of the user provided at a position different from the operation target operated by the user and at least a part of the operation target being gripped by a part of the living body of the user;
    Authenticating the user based on the acquired blood vessel information;
    Determining whether or not to execute a process executed in accordance with the operation to be operated based on an authentication result; and
    Including authentication methods.
  11. On the computer,
    With respect to the blood vessel information acquisition unit that is provided at a position different from the operation target operated by the user and acquires the blood vessel information of the user when gripping at least a part of the operation target by a part of the living body of the user, Blood vessel information acquisition control means for acquiring blood vessel information;
    Authentication means for authenticating the user based on the blood vessel information acquired by the blood vessel information acquisition unit;
    A determination unit that determines whether or not to execute a process that is executed in response to the operation of the operation target, based on an authentication result by the authentication unit;
    A computer-readable recording medium on which is recorded a program for functioning as an authentication processing device.
JP2010016573A 2010-01-28 2010-01-28 Authentication device, authentication method, and computer readable recording medium Pending JP2010102740A (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0721373A (en) * 1993-06-17 1995-01-24 Asahi Optical Co Ltd Individual identifying device
JPH09297735A (en) * 1996-03-08 1997-11-18 Toshiba Corp Security device and security realizing method
JPH10295674A (en) * 1997-04-14 1998-11-10 Bk Syst Individual identification device, individual identification method, and individual identification system
JPH11185016A (en) * 1997-12-24 1999-07-09 Sharp Corp Information processor
JPH11203452A (en) * 1998-01-19 1999-07-30 Hitachi Ltd Personal feature pattern detector and personal identification device using the detector
JP2000356060A (en) * 1999-06-15 2000-12-26 Alpha Corp Fingerprint checking type control device
JP2001184507A (en) * 1999-12-24 2001-07-06 Hitachi Ltd Device for authenticating individual

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0721373A (en) * 1993-06-17 1995-01-24 Asahi Optical Co Ltd Individual identifying device
JPH09297735A (en) * 1996-03-08 1997-11-18 Toshiba Corp Security device and security realizing method
JPH10295674A (en) * 1997-04-14 1998-11-10 Bk Syst Individual identification device, individual identification method, and individual identification system
JPH11185016A (en) * 1997-12-24 1999-07-09 Sharp Corp Information processor
JPH11203452A (en) * 1998-01-19 1999-07-30 Hitachi Ltd Personal feature pattern detector and personal identification device using the detector
JP2000356060A (en) * 1999-06-15 2000-12-26 Alpha Corp Fingerprint checking type control device
JP2001184507A (en) * 1999-12-24 2001-07-06 Hitachi Ltd Device for authenticating individual

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