JP2002262147A - Photographing device and principal authentication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive photographing device where dimmer control for a flash light is properly conducted and no unpleasant sense is given to an object person and to provide a principal authentication device adopting this photographing device. SOLUTION: A light guide member 13 blocks incidence of a flash light emitted from a flash 2 and reflected in a colored glass pane 11 onto a flash sensor 3 at photographing. Furthermore, the light guide member 13 leads the light passing through the colored glass pane 11 and reflected in a user 20 to the flash sensor 3. Since the dimmer of the flash 2 is performed without being affected by the light reflected in the colored glass 11, the user 20 can be photographed at a proper lightness. Then an excellent photographing image can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing apparatus for photographing a user with a camera, and more particularly to a photographing apparatus in which colored glass is disposed as a transparent member between the camera and the user.

[0002] Further, the present invention applies the above photographing device,
The present invention relates to a personal authentication device that authenticates an individual photographed by the photographing device.

[0003]

2. Description of the Related Art Conventionally, various devices have been proposed which include a camera for photographing a subject, especially a person, and use a photographed image photographed by the camera. For example, there are a photo sticker vending machine that issues a photo sticker of a subject (person) photographed by a camera, a personal identification device that authenticates a person photographed by a camera, and the like. The personal authentication device is used as a device for performing transaction processing such as discharging cash stored in a main body, a device for controlling opening and closing of a door for restricting entry and exit into a room, and the like.

[0004] In these devices, if the user mischiefs or unexpectedly touches the lens of the camera and the lens becomes dirty, the quality of the captured image deteriorates.

[0005] When the camera is seen, the user feels unpleasant to be monitored. There are problems such as.

Therefore, as a method of preventing a user from mischievously or accidentally touching a lens of a camera and preventing the user from feeling discomfort that the user is being monitored, a method for preventing a user from being a subject and a camera as a photographing device is used. It has been proposed to place a half mirror on the surface.

[0007]

A general camera has a flash for illuminating a subject at the time of shooting and a function for controlling the brightness (light emission amount) of the flash (hereinafter, referred to as a flash).
It is called dimming function. ) Is built-in. The dimming function is a function of detecting the amount of reflected light from the subject and adjusting the amount of light emitted from the flash based on the amount of reflected light detected here.

A general camera 50 is provided with a flash 51 and a flash sensor 52 near the optical axis of the camera 50 as shown in FIG. As shown in FIG. 13A, in a photographing apparatus in which the half mirror 55 is not arranged between the camera 50 and the user 60, the flash 5
The light emitted from 1 illuminates the user 60 as the subject. The flash sensor 52 detects reflected light from the user 60. The camera 50 controls the amount of light emitted from the flash 51 based on the amount of reflected light detected here.

However, as shown in FIG. 13B, a half mirror 55 is provided between the camera 50 and the user 60.
Is arranged, part of the light emitted from the flash 51 is reflected by the half mirror 55, and the light that has passed (transmitted) through the half mirror 55 illuminates the user 60. Therefore, reflected light from the user 60 and reflected light from the half mirror 55 are incident on the flash sensor 52. What is generally called a half mirror has a reflectance of about 50% and a transmittance of about 50%. Note that the half mirror actually absorbs several%.

About half of the light emitted from the flash 51 is reflected by the half mirror 55 and returns to the camera 50 to enter the flash sensor 52. On the other hand, the light that has passed through the half mirror 55 is radiated to the user 60,
A part of the light irradiated to 0 returns to the camera 50 side and enters the flash sensor 52. For this reason, most of the reflected light detected by the flash sensor 52 is reflected light from the half mirror 55. Therefore, the reflected light from the user 60 cannot be accurately detected by the flash sensor 52, and the light emission amount of the flash 51 by the dimming function is not properly controlled. For this reason, Flash 5
1, the amount of light emission is kept low, the captured image is dark, and a good captured image cannot be obtained.

Therefore, there is a problem that a photo sticker vending machine cannot issue a photo sticker that satisfies a user, and a personal authentication device lowers the authentication accuracy of a user.

Also, the face of the user is clearly seen on the surface of the half mirror 55 having a reflectance of about 50%,
Another person behind 0 can see his face. For this reason,
The privacy of the user 60 was not sufficiently protected. In particular, a device having a dispensing function for dispensing cash (CD
It is not preferable for crime prevention that a user's face be seen by another person in a transaction processing apparatus such as an ATM or an ATM.

If the half mirror 55 in FIG. 13B is replaced with ordinary glass having no reflective coating (glass having a reflectivity of about 8%), the reflected light from the glass during photographing can be suppressed, and Since the reflected light from 60 increases, the detection accuracy of the reflected light from user 60 in flash sensor 52 improves. However, if the user 50 sees the camera 50, the above-mentioned problem that the user feels uncomfortable that the camera 50 is being monitored cannot be solved.

As described above, if the reflectance of the transmitting member disposed between the camera 50 and the user 60 is increased, the accuracy of detecting the reflected light from the user 60 by the flash sensor 52 decreases, and conversely, the reflectance of the transmitting member decreases. There is a problem that if the value is lowered, the user may feel uncomfortable that the user is being monitored.

The above problem can be solved by providing an illuminating device for illuminating the user 60 outside the half mirror 55 (subject side) and above the subject, but in this case, the flash provided in the camera 50 body is used. These components must be provided separately from the camera 50 without using the dimming function for controlling the light emission amount of the flash sensor 51, the flash sensor 52, and the flash 50, and there is a problem that the cost of the apparatus body is increased.

An object of the present invention is to provide an inexpensive photographing apparatus capable of properly controlling the flash light control, not causing the user who is the subject to feel uncomfortable, and further reducing the cost of the main body. Another object of the present invention is to provide a personal identification device to which the photographing device is applied.

[0017]

The photographing apparatus according to the present invention comprises:
In order to solve the above-mentioned problem, the following configuration is provided. (1) In a photographing apparatus for photographing a subject located on the front side of a transparent member with a camera arranged on the back side of a plate-shaped transparent member, the camera includes a flash illuminating the subject, and a reflected light amount of the flash. A sensor for detecting
Dimming means for controlling the amount of light emission of the flash based on the amount of reflected light detected by the sensor,
An incident blocking unit is provided for preventing reflected light emitted from the flash and reflected by the transmission member from entering the sensor.

According to the present invention, a camera is disposed on the back side of the transmitting member, and at the time of photographing, reflected light from the subject is detected by a sensor, and the light emission amount of the flash is controlled by the light control means. In addition,
Cameras with dimming means are already known.

Further, since the plate-shaped transmission member is disposed between the camera and the subject, the user who is the subject does not mischief or accidentally touch the lens of the camera and the lens is not stained.

The incident light blocking means prevents the reflected light reflected on the rear surface of the transmitting member from entering the sensor. Therefore, only the reflected light from the subject is incident on the sensor. Therefore, since the light emission amount of the flash is appropriately controlled by the dimming unit, a good photographed image obtained by photographing the subject with appropriate brightness can be obtained.

(2) The light blocking means has an incident surface at a position where the reflected light emitted from the flash and reflected by the transmitting member does not enter, and an emission surface at a position facing the sensor. It is.

According to the present invention, an optical path having an incident surface at a position where the reflected light emitted from the flash and reflected by the transmitting member is not incident, and an emitting surface at a position facing the sensor is formed. The light reflected by the back surface was prevented from entering the sensor.

Further, by arranging the incident surface to face the rear surface of the transmission member and close to the rear surface, it is possible to substantially prevent the reflected light emitted from the flash and reflected by the transmission member from being incident on the optical path. It can be reliably prevented.

Further, by arranging the light emitting surface so as to face and close to the sensor, it is possible to almost certainly prevent the light reflected by the transmitting member from directly entering the sensor. Light that does not pass through can be prevented from entering the sensor.)

(3) The optical path is a fiber.

(4) The transmission member is a colored glass.

According to the present invention, even if the reflectance of the transmitting member is reduced, the user who is the subject cannot easily see the camera. In addition, by reducing the reflectance, the user's face, which is the subject, is less likely to be reflected on the colored glass. Therefore, the subject user does not feel discomfort that the subject is being monitored, and the face of the user who is the subject is
It can be prevented from being seen by others behind the user.

If the reflectance of the colored glass is in the range of 31% to 37%, the inventor of the present application makes it difficult for the user who is the subject to see the camera, and the user's face is hardly seen on the colored glass so that the user's face can be seen. It was confirmed.

Further, the personal authentication device of the present invention has the following configuration.

(5) An identity authentication device to which the photographing device according to any one of (1) to (4) above is applied, wherein an authentication database storing personal face image data as authentication data; An image of a person's face taken with the camera,
Authentication means for authenticating an individual who has taken a picture using the face image data stored in the authentication database.

According to the present invention, since the subject can always be photographed with an appropriate brightness, a decrease in the authentication accuracy of the individual whose face image data is stored in the authentication database is suppressed, and the reliability of the apparatus body is improved. Can be.

(6) An identity authentication device to which the photographing device according to any one of (1) to (4) is applied, wherein the authentication device accepts a certificate with a face photograph and reads the face photograph of the certificate. A photograph reading unit; and an authentication unit for authenticating the photographed individual using the face image of the individual photographed by the photographing device and the face photograph read by the facial photograph reading unit.

According to the present invention, since the subject can always be photographed with an appropriate brightness, a decrease in the accuracy of personal authentication using a certificate with a face photograph can be suppressed, and the reliability of the apparatus main body can be improved.

Further, the following configuration is proposed as a transaction processing apparatus having a dispensing unit for dispensing cash.

(7) In the personal identification device, a photographing means for photographing a subject located in front of the colored glass with a camera disposed on the back side of the colored glass, and an authentication for storing personal face image data as authentication data. Database, a matching unit that matches an individual photographed using the face image of the individual photographed by the photographing unit and the face image data stored in the authentication database, and an output unit that outputs a matching result. , An authentication device comprising:

(8) In the personal identification device, a camera disposed on the back side of the colored glass captures an image of an object located on the front of the colored glass, accepts a certificate with a face photograph, and accepts the certificate of the certificate. Certificate reading means for reading an image, collating means for collating the photographed individual using the face image of the individual photographed by the photographing means and the face photograph read by the certificate reading means, and outputting a collation result And an output unit.

Further, a transmission means may be provided for transmitting the face image of the individual photographed by the photographing means and the image of the certificate read by the certificate reading means to a host device.

The data to be transmitted by the transmitting means may be an image of only the face photograph portion or both (an image of the certificate and an image of only the face photograph portion) instead of the image of the certificate.

Further, it is more preferable to transmit the collation result by the collation means.

In the personal authentication device of (7) and (8),
Since the face of the user who is the subject can be prevented from being seen by others behind the user, the privacy of the user can be sufficiently protected. In addition, since the user who is the subject does not see the camera, the user does not feel uncomfortable being monitored.

The personal authentication devices (7) and (8) can be used as devices for performing transaction processing on CDs, ATMs, etc., provided with a dispensing means for dispensing cash.

[0042]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A photographing apparatus according to an embodiment of the present invention will be described below. FIG. 1 is a diagram showing a digital camera applied to a photographing apparatus according to an embodiment of the present invention. 1A is a top view, and FIG. 1B is a front view. A digital camera 1 (hereinafter simply referred to as a camera 1) includes a flash 2 and a flash sensor 3 in a main body. The flash sensor 3 is a sensor for detecting the amount of reflected light from a subject during photographing. Further, the camera 1 has a dimming function for controlling the light emission amount of the flash 2 based on the amount of reflected light from the subject detected by the flash sensor 3. Since a camera having the dimming function is known, its description is omitted here.
The camera 1 includes an output unit that outputs a captured image as electronic data (image file).

In FIG. 1, reference numeral 4 denotes a shutter, and reference numeral 5 denotes a lens barrel containing an imaging lens. Camera 1
Has an autofocus function of moving an imaging lens with respect to a subject to be photographed in a direction indicated by an arrow in FIG. 1A and focusing on the subject. The flash 2 and the flash sensor 3 are mounted near the lens barrel 5 (optical axis) as shown.

FIG. 2 is a view showing a camera mounting structure in a photographing apparatus according to an embodiment of the present invention. FIG. 3 is a diagram showing a part of the configuration shown in FIG. 2 in a cross-sectional structure for explanation. 2 and 3, the right side is the outside of the photographing apparatus main body, and the left side is the inside of the photographing apparatus main body. The camera 1 is fixed inside the photographing device. A colored glass 11 is attached to the front of the camera 1 main body. The colored glass 11 is a plate-shaped transmission member referred to in the present invention. The camera 1 captures an image of a subject located outside the image capturing apparatus main body via the colored glass 11. The colored glass 11 is a surface on which an outer surface (the right side in FIGS. 2 and 3) is coated with a reflection. This colored glass 1
No. 1 has a reflectance of 34%, a transmittance of 40%, and an absorptance of 26
%. This colored glass 11 has a lower reflectance than a general half mirror, and makes it difficult for a subject to be imaged on the surface.

The camera 1 has a sponge 12 around the lens barrel 5.
Is wound. The camera 1 is fixed at a position where the movement of the imaging lens by the autofocus function is not restricted by the colored glass 11. Specifically, the camera 1 main body is fixed at a position where the lens barrel 5 does not hit the colored glass 11 when the imaging lens (lens barrel 5) is moved by the autofocus function. FIG. 3 shows the lens barrel 5 around which the sponge 12 is wound.

Further, a cylindrical light guide member 13 is provided inside the photographing apparatus main body as an optical path for guiding the reflected light from the subject to the flash sensor 3. FIG. 3 shows an internal cross section of the light guide member 13. The light guide member 13 has an incident surface facing the colored glass 11 and an emission surface facing the flash sensor 3.

The total reflection mirror 1 is provided inside the light guide member 13.
4 and 15 are provided. The total reflection mirror 14 is provided on the colored glass 11 side and below the light guide member 13. The total reflection mirror 15 is on the camera 1 body side and
It is provided above the light guide member 13. Total reflection mirror 1
Reference numerals 4 and 15 denote light reflected from the incident surface to the light guide member 13 through the colored glass 11 to return the light to the flash sensor 3.
This is a configuration for entering the light.

The incident surface (opening surface facing the colored glass 11) of the light guide member 13 is provided by the camera so that the reflected light emitted from the flash 2 of the camera 11 and reflected by the colored glass 11 does not enter. 1 is located below the optical axis (opposite the flash 2) and close to the back of the colored glass 11. Further, the light guide member 13 is configured such that a light shielding member is wound around the outer peripheral surface so that light does not enter from other than the incident surface.

Next, photographing of a subject by the photographing apparatus of this embodiment will be described with reference to FIG. In this figure, illustration of the light guide member 13 is omitted, and only the total reflection mirrors 14 and 15 are shown. At the time of shooting, a person to be the subject 20 (hereinafter, referred to as a user 20) faces the imaging lens 5 of the camera 1 via the colored glass 11.

In the photographing apparatus of this embodiment, the camera 1 focuses on the user 20 by the autofocus function.
The imaging device is configured so that the reflectance (34%) of the colored glass 11 is suppressed and the face of the user 20 is not clearly seen on the surface of the colored glass 11. In addition, by adding colors, the camera 1 is not clearly seen by the user 20.

Accordingly, the user 20 does not feel discomfort that the user is being monitored, and nobody behind the user 20 can see the face (the face on the colored glass 11). Further, the user does not touch the camera 1, especially the imaging lens, without pranks.

When the focusing on the user 20 is completed, the camera 1 emits the flash 2 to
To shoot. At this time, the camera 1
The amount of light emitted from the flash 2 is controlled based on the amount of reflected light from the subject 20 detected in.

The light emitted from the flash 2 includes the light shown in FIG.
As indicated by arrows therein, there are light reflected by the colored glass 11 and light that passes through the colored glass 11 and illuminates the user 20. Note that some light is actually absorbed by the colored glass 11.

First, the light reflected by the colored glass 11 will be described. As described above, the light guide member 13 has the incident surface provided at a position where the light reflected by the colored glass 11 does not enter. Therefore, the light reflected by the colored glass 11 does not enter the light guide member 13 from the incident surface, is reflected by the total reflection mirrors 14 and 15 as described later, and does not enter the flash sensor 3 from the exit surface. .

As described above, the light guide member 13 prevents the reflected light from the colored glass 11 from being incident on the flash sensor 3. Although the light reflected by the colored glass 11 is applied to the outer peripheral surface of the light guide member 13, there is no particular problem since the light shielding member is wound around the outer peripheral surface of the light guide member 13.

On the other hand, the light that has passed through the colored glass 11 is applied to the user 20. The reflected light from the user 20 passes through the colored glass 11 again and returns to the camera 1 side. Part of the reflected light from the user 20 is incident on the light guide member 13 from the incident surface of the light guide member 13. The reflected light that has entered the light guide member 13 is reflected by the total reflection mirrors 14 and 15 and is emitted from the emission surface of the light guide member 13. As mentioned above,
The emission surface of the light guide member 13 faces the flash sensor 3. Therefore, the light emitted from the emission surface of the light guide member 13 enters the flash sensor 3.

As described above, in the photographing apparatus of this embodiment, the reflected light from the user 20 enters the light guide member 13, is reflected by the total reflection mirrors 14 and 15, and enters the flash sensor 3. The camera 1 can control the light emission amount of the flash 2 based on the light detected by the flash sensor 3, that is, the reflected light from the user 20, by a known dimming function.

Therefore, the dimming control of the flash 2 can be performed without being affected by the light reflected by the colored glass 11, so that a good photographed image of the user 20 can be obtained with appropriate brightness. . Also, camera 1
Since the colored glass 11 is provided between the camera 20 and the user 20, the user 20 does not touch the imaging lens of the camera 1 accidentally or unexpectedly. Further, since the face of the user 20 is not clearly shown on the surface of the colored glass 11, the privacy of the user 20 can be sufficiently protected. The user 20 does not feel uncomfortable being monitored.

Since the flash 2, the flash sensor 3, and the dimming function for controlling the light emission amount of the flash 2 provided in the camera 1 main body are used, the cost of the apparatus main body can be sufficiently suppressed.

In the above embodiment, the colored glass 1
It was assumed that the reflectance of No. 1 was 34%, but if it was in the range of 31 to 37%, the face of the user 20 was not clearly seen on the colored glass 11, and it was confirmed that there was no particular problem.

Next, another embodiment of the present invention will be described. FIG. 5 is a diagram showing a configuration of a photographing apparatus according to another embodiment of the present invention. The imaging apparatus according to this embodiment has a configuration in which a fiber 31 is used instead of the light guide member 13. One end of the fiber 31 has an incident portion 32
Is provided, and the emission section 33 is provided at the other end. The light incident portion 32 is disposed to face the rear surface of the colored glass 11 and has a lens (not shown) for allowing light incident through the colored glass 11 to enter the fiber 31. On the other hand, the emission unit 33 is arranged to face the flash sensor 3. The light emitted from the emission unit 33 enters the flash sensor 3.

The detection surface of the flash sensor 3 is covered with the emission section 33, and only the light emitted from the emission section 33 enters. The camera 1 is the same as that of the above embodiment.

In the photographing apparatus according to this embodiment, the light reflected by the colored glass 11 is prevented from being incident on the incident portion 32 by disposing the incident portion 32 facing the rear surface of the colored glass 11. ing. Therefore, the light reflected by the colored glass 11 does not enter the flash sensor 3.

Since the detection surface of the flash sensor 3 is covered with the emission section 33, the light reflected by the colored glass 11 does not directly enter.

On the other hand, the reflected light from the user 20 passes through the colored glass 11 again and returns to the camera 1 side. The reflected light from the user 20 is incident on the incident section 32. The reflected light that has entered the incidence section 32 is emitted from the emission section 33 through the fiber 31. That is, the flash sensor 3
Is incident on.

As described above, also in the photographing apparatus of this embodiment, the reflected light from the user 20 is incident on the flash sensor 3, but the reflected light from the colored glass 11 is not.

Therefore, the camera 1 can control the light emission amount of the flash 2 based on the reflection light amount from the user 20. Therefore, similarly to the device of the above-described embodiment, the image-capturing device of this embodiment can obtain a good captured image of the user 20 with appropriate brightness. In addition, since the colored glass 11 is provided between the camera 1 and the user 20, the user 20 does not touch the imaging lens of the camera 1 accidentally or unexpectedly. In addition, since the face of the user 20 is not clearly seen on the surface of the colored glass 11, the user 20
Privacy can be fully protected. The user 20 does not feel uncomfortable being monitored. further,
Since the flash 2, the flash sensor 3, and the dimming function for controlling the light emission amount of the flash 2 provided in the camera 1 main body are used, the cost of the apparatus main body can be sufficiently suppressed.

Further, another embodiment of the photographing apparatus according to the present invention will be described. FIG. 6 is a diagram showing a configuration of a photographing apparatus according to still another embodiment of the present invention.
The photographing device according to this embodiment is different from the device of the above embodiment in that the light guide member 13 or the fiber 31 is used.
This is a configuration using a light shielding plate 35.

The light shielding plate 35 is a plate-like member, and is disposed above the flash sensor 3 and below the flash 2 as shown in the figure.

In the photographing apparatus of this embodiment, the reflected light emitted from the flash 2 and reflected by the colored glass 11 is applied to the upper surface of the light shielding plate 35. The light shielding plate 35 has a size that can prevent the light reflected by the colored glass 11 from being incident on the flash sensor 3.

As described above, in the photographing apparatus of this embodiment, the light reflected by the colored glass 11 is prevented from entering the flash sensor 3 by the light shielding plate 35.

On the other hand, the reflected light from the user 20 passes through the colored glass 11 below the light shielding plate 35 as shown in FIG.

As described above, also in the photographing apparatus of this embodiment, only the reflected light from the user 20 is incident on the flash sensor 3, so that a good photographed image obtained by photographing the user 20 with appropriate brightness can be obtained. Since the colored glass 11 is disposed between the camera 1 and the user 20,
The user 20 does not feel mischievous or abruptly touch the imaging lens of the camera 1 or feel that the user 20 is being monitored. Since the face of the user 20 does not clearly appear on the surface of the colored glass 11, the privacy of the user 20 can be sufficiently protected.

In the photographing apparatus of this embodiment, the light emitted from the flash 2 by the light shielding plate 35
An area not equal to 0 (hereinafter, referred to as a shadow area) is formed. In FIG. 6, a hatched area is a shadow area. However, as shown in the figure, the shadow area is below the neck of the user 20, and there is no particular problem as long as the apparatus is intended to photograph the face of the user 20.

Further, since the light reflected by the colored glass 11 is prevented from entering the flash sensor 3 with a very simple structure of the light shielding plate 35, the cost can be further reduced as compared with the apparatus of the above-described embodiment. realizable.

Next, a description will be given of a personal authentication apparatus to which the photographing apparatus according to the above embodiment is applied. FIG. 7 is a schematic diagram showing the appearance of the personal authentication device according to this embodiment.
FIG. 8 is a block diagram showing the configuration of the personal authentication device according to this embodiment. Personal authentication device 40 of this embodiment
Displays a control unit 41 that controls the operation of the main body, an imaging device 42 according to any of the above-described embodiments, an operation unit 43 that performs an input operation on the main body, a guidance screen for the input operation, and the like. A display unit 44, a dispensing unit 45 for dispensing cash stored in the main body, and an authentication data storage unit 46 storing an identification code and a corresponding registrant's face image data in association with each registrant And Operation unit 43
Has a touch panel provided on the display screen of the display unit 44. The photographing device 42 is mounted on the upper surface of the main body.

The operation of the personal identification device 40 according to this embodiment will be described below. When an input operation for instructing an authentication request is performed on the operation unit 43 (when a specific key is operated), the personal authentication device 40 starts the personal authentication process. FIG. 9 is a flowchart showing the personal authentication processing. First, the operation unit 43 receives an input of an identification code (s1). The input of the identification code is performed by the operation unit 43
Or an ID code recorded on a magnetic card or IC card inserted into the main body by a card reader (not shown).

When the identification code is input, the personal authentication device 40 photographs the user's face with the photographing device 42 (s).
2). At this time, the user is at a predetermined shooting position. As described above, the photographing device 42 can perform photographing by the user with appropriate brightness, and can obtain a good photographed image.

The personal authentication device 40 reads out the face image data of the registrant corresponding to the identification code input in s1 (s3). The face image data of the registrant read in s3 is compared with the image of the user photographed in s2, and whether the registrant identified by the input identification code and the user photographed in s2 are the same person. Judge whether (s
4). If it is determined in s4 that they are the same person, a transaction process is executed (s5).

The transaction process of s5 is a process of accepting an input of a withdrawal amount at the operation unit 43 and dispensing cash of the withdrawal amount input at the withdrawal unit 45.

If it is determined in s4 that the persons are not the same person, this processing is terminated without executing the transaction processing in s5.

As described above, since the user authentication device 40 of this embodiment can photograph a user with appropriate brightness, a good photographed image can be obtained. Therefore, a decrease in authentication accuracy is suppressed, and the reliability of the apparatus main body can be improved.

Also, since the face of the user is not seen by others who need to be behind the user (the colored glass 1
1 does not show the user's face), and the privacy of the user is sufficiently protected.

Next, another embodiment of the personal identification device to which the photographing device according to the above embodiment is applied will be described.
FIG. 10 is a schematic diagram showing the appearance of the personal authentication device according to this embodiment, and FIG. 11 is a block diagram showing the configuration of the personal authentication device according to this embodiment. The personal authentication device 40 of this embodiment stores the authentication data storage unit 46 in the above embodiment with a certificate with a face photograph, for example, a driver's license,
Is replaced with a scanner 47 that reads a face photograph, an address, a name, and the like.

As is well known, the driver's license is printed with information such as a photograph of the driver's face, name, current address, permanent address, and date of birth.

The operation of the personal identification device 40 according to this embodiment will be described below. When an input operation for instructing an authentication request is performed on the operation unit 43 (when a specific key is operated), the personal authentication device 40 starts the personal authentication process. FIG. 12 is a flowchart showing the personal authentication process. First, the driver's license is scanned by the scanner 47, and information such as a face photograph printed on the driver's license is read (s11). After completing the reading of the driver's license, the personal identification device 40 photographs the user's face with the photographing device 42 (s12). At this time, the user is at a predetermined shooting position. As described above, since the photographing device 42 can photograph the user with appropriate brightness, it is possible to obtain a good photographed image (the face image of the user).

The personal authentication device 40 compares the face photograph read from the driver's license in s11 with the face image of the user photographed in s12, and the driver's license received in s11 is s1.
It is determined whether or not it belongs to the user photographed in step 2 (s13). If it is determined in s13 that the driver's license accepted in s11 belongs to the user photographed in s12, a transaction process is executed (s14).

The transaction process of s14 is a process in which the operation unit 43 accepts the input of the withdrawal amount and the withdrawal unit 45 withdraws the cash of the input withdrawal amount. In addition, the name, address, permanent address, read from the license in s11,
Information such as date of birth is stored as transaction data.

If it is determined in s13 that the driver's license received in s11 is not the one of the user photographed in s12, the process ends without executing the transaction process in s14.

As described above, since the user authentication device 40 of this embodiment can also shoot a user with appropriate brightness, a good shot image can be obtained. Therefore, a decrease in authentication accuracy is suppressed, and the reliability of the apparatus main body can be improved.

Also, since the face of the user cannot be seen by others who need to be behind the user (the colored glass 1
1 does not show the user's face), and the privacy of the user is sufficiently protected.

Further, the personal authentication device 40 may be connected to a center (not shown), and the face image and the certificate image acquired by the personal authentication device 40 and the collation result thereof may be transmitted to the center. With this configuration, it is possible to comprehensively determine the information transmitted from the personal authentication device 40 at a remote place (center) and appropriately determine whether or not the user is the principal.

The color of the colored glass 11 is preferably gray, which is an achromatic color having no saturation. This is because, as a pre-process of the face matching, there is a case where a process of cutting out the face region by detecting the skin color region from the captured image is performed. If the color of the colored glass 11 is gray, the detection accuracy of the skin color region is improved. Because you can.

When the present invention is applied to a sticker vending machine, a color image is usually used. Therefore, if the color of the colored glass 11 is gray, the original color of the subject can be easily recognized.

If the color of the colored glass 11 is set to the same color as that of the housing of the personal identification device 40, the mounting position of the camera 1 becomes inconspicuous, and the user does not feel any more discomfort being monitored.

Further, if the present invention is applied to an unattended reception terminal, it is possible to photograph a good face image of the received user, thereby preventing a crime such as spoofing.

[0097]

As described above, according to the photographing apparatus of the present invention, the light for irradiating the subject at the time of photographing can be properly adjusted, so that a good photographed image of the subject can always be obtained.

Further, as a configuration for illuminating the subject, a flash, a flash sensor, and a light control means built in the camera are used instead of providing an illumination device or the like separately from the camera body. Can be suppressed sufficiently.

Further, according to the personal identification device of the present invention,
A good photographed image of the subject can always be obtained. Therefore, a decrease in authentication accuracy is suppressed, and the reliability of the main body can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a digital camera applied to a photographing apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of a photographing apparatus according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a configuration of a photographing apparatus according to an embodiment of the present invention.

FIG. 4 is a diagram showing a photographing apparatus according to another embodiment of the present invention.

FIG. 5 is a diagram illustrating a photographing apparatus according to another embodiment of the present invention.

FIG. 6 is a diagram showing a photographing apparatus according to another embodiment of the present invention.

FIG. 7 is a schematic diagram illustrating an appearance of a personal authentication device according to an embodiment of the present invention.

FIG. 8 is a diagram showing a configuration of a personal authentication device according to an embodiment of the present invention.

FIG. 9 is a flowchart illustrating an operation of the personal authentication device according to the embodiment of the present invention;

FIG. 10 is a schematic diagram showing an external appearance of a personal identification device according to another embodiment of the present invention.

FIG. 11 is a diagram showing a configuration of a personal authentication device according to another embodiment of the present invention.

FIG. 12 is a flowchart showing the operation of the personal authentication apparatus according to another embodiment of the present invention.

FIG. 13 is a view showing a conventional photographing apparatus.

[Explanation of symbols]

 Reference Signs List 1-digital camera 2-flash 3-flash sensor 4-shutter 5-imaging lens 11-colored glass 13-light guide member 14, 15-total reflection mirror 20- (user) subject 31-fiber 32-incident part 33-emission Unit 35-light shielding plate 40-person authentication device 41-control unit 42-photographing device 43-operation unit 44-display unit 45-dispensing unit 46-authentication data storage unit 47-scanner

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) G03B 15/02 G03B 15/02 R 5C054 15/03 15/03 F 5J104 15/05 15/05 17/53 17/53 G06T 1/00 400 G06T 1/00 400H 420 420C 430 430G H04L 9/32 H04N 5/238 Z H04N 5/238 7/18 U 7/18 101: 00 // H04N 101: 00 H04L 9/00 673D (72) Inventor Hiroshi Yano 801 Fudo-term in Omron Co., Ltd. 801 Fudo-term, Higashi-iri, Horikawa, Shiokoji-dori, Shimogyo-ku, Kyoto, Kyoto 2H053 AA01 DA00 DA03 DA04 2H083 AA01 AA31 AA51 2H104 AA16 BC48 5B047 AA23 BC07 BC09 BC11 CA19 CB04 5C022 AA01 AA13 AB15 AC55 AC78 5C054 AA01 CA04 CC02 CE07 CH02 EA01 EA05 EA07 FC11 GB11 HA00 5J104 AA07 KA01 KA16

Claims (8)

[Claims] 1. A photographing apparatus for photographing a subject located on the front side of a transparent member with a camera disposed on the back side of a plate-shaped transparent member, wherein the camera includes: a flash illuminating the subject; A sensor for detecting the amount of reflected light, and dimming means for controlling the amount of light emitted from the flash based on the amount of reflected light detected by the sensor; and a reflection emitted from the flash and reflected by the transmitting member. An imaging device comprising an incidence blocking means for blocking light from entering the sensor. 2. An optical path, comprising: an incident surface provided at a position where reflected light emitted from the flash and reflected by the transmissive member is not incident; and an exit surface provided at a position facing the sensor. The photographing apparatus according to claim 1. 3. The imaging device according to claim 2, wherein the optical path is a fiber. 4. The photographing apparatus according to claim 1, wherein said transmission member is a colored glass. 5. The transmissive member has a reflectance of 31 to 37%.
The imaging device according to claim 4, wherein 6. A personal authentication device to which the photographing device according to claim 1 is applied, comprising: an authentication database storing personal face image data as authentication data; An authentication apparatus comprising: an authentication unit configured to authenticate an individual who has captured an image using the face image of the individual and the face image data stored in the authentication database. 7. A personal authentication device to which the photographing device according to claim 1 is applied, wherein a face photo reading means for receiving a certificate with a face photo and reading a face photo of the certificate. An authentication means for authenticating the photographed individual using a face image of the individual photographed by the photographing apparatus and a face photograph read by the face photograph reading means. 8. The personal identification device according to claim 7, wherein the certificate with the face photograph is a driver's license.