JP2017091129A - Face authentication device, control system including face authentication device, and screen display control method in face authentication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more enhance convenience by eliminating the need of the attitude change of a user, in a face authentication device.SOLUTION: The face authentication device performing personal authentication by using a face image includes imaging means 11 and a display part 12. When acquiring the face image, an image captured by the imaging means 11 is displayed on the display part 12. A reference marker RM for aligning the position of the part of a face such as both eyes is displayed together with the image. The reference marker RM has a form to be linearly extended in the vertical direction of a screen.SELECTED DRAWING: Figure 6

Description

  The technology disclosed herein relates to a face authentication apparatus that performs personal authentication using a face image.

  Patent Document 1 discloses a face recognition device that recognizes a subject's face based on the subject's face image acquired by a camera. In the face recognition device described in Patent Document 1, when capturing a face image, a rectangular or elliptical frame is displayed on the screen, and the subject acquires the face image in a state where the face is aligned with the frame. I have to.

JP 2010-86403 A

  However, when a frame for aligning the face position is displayed on the screen as in the face recognition device described in Patent Document 1, there is a problem in terms of convenience. For example, a tall user is forced to bend or kneel down to align his face with the frame displayed on the screen. On the other hand, a user with a short height may need to stretch his back or get on a table. Thus, forcing the user to have an unnatural attitude is not preferable in terms of convenience.

  The technology disclosed herein has been made in view of the above points, and an object of the face authentication device is to eliminate the need for changing the posture of the user and further enhance convenience.

  The technology disclosed herein is a face authentication device that performs personal authentication using a face image, and includes an imaging unit, a display unit, and an image captured by the imaging unit at the time of acquiring a face image. And a control unit for acquiring the image displayed on the display unit as a face image, the control unit for aligning the position of the facial part together with the image captured by the imaging unit A reference marker is displayed on the display unit, and the reference marker has a form extending linearly in the vertical direction of the screen.

  According to this configuration, when the face image is acquired, the image captured by the imaging unit is displayed on the display unit. Along with this image, a reference marker for aligning the position of the facial part is displayed on the display unit. This reference marker has a form extending linearly in the vertical direction of the screen. For this reason, the user only needs to align the position of the face part with the reference marker extending linearly in the vertical direction of the screen.For example, a person with a high height bends the knee or a person with a short height does not stretch. There is no need to do. That is, since the user does not need to take an unnatural posture, the convenience of the face authentication device is improved.

  In addition, as a form of the reference marker extending linearly, for example, a solid straight line may be used, and other line types such as a broken line or a one-dot chain line may be used. Further, a symbol such as “+” or a specific symbol may be linearly arranged.

  In the above configuration, at least two reference markers may be displayed for aligning positions of two or more parts of the face.

  Here, in the configuration in which a face frame is displayed on the screen as in the face recognition device described in Patent Document 1, the position of the face relative to the device is substantially stable in the vertical direction and the horizontal direction, but The position is not always stable. That is, the distance between the user's face and the imaging device is not fixed, and the distance is likely to vary each time a face image is taken. For this reason, for example, when comparing a registered image and an acquired image, a correction process for matching the size of the face image is required, and this increases the time required for the authentication process. This is not preferable because the management system equipped with the face authentication device leads to a slow response.

  On the other hand, in the configuration in which at least two reference markers extending linearly in the vertical direction of the screen are displayed, when the user aligns the positions of two or more parts of the face with the reference markers, respectively, The face position is almost stable. As a result, the distance between the user's face and the imaging device does not vary every time the image is taken, and is almost fixed. Therefore, the correction process for adjusting the size of the face image is not required, thereby reducing the time required for the authentication process.

  In the above configuration, two reference markers may be displayed for aligning the positions of both eyes. Alternatively, one reference marker may be displayed for adjusting the position of the nose. Alternatively, three reference markers for aligning the positions of both eyes and nose may be displayed.

  Thus, the user only needs to match the position of the eyes and nose with the reference marker when acquiring the face image.

  Further, in the above configuration, an input unit that receives an input is provided, and the control unit displays a first mode that displays the reference marker and a frame that displays a face position according to the input received by the input unit. It may be configured to be switchable between two modes.

  Thereby, the user can select whether to display the reference marker or the frame on the screen.

  In the above configuration, the control unit may display a line-of-sight marker for fixing a user's line of sight together with the reference marker when acquiring a face image. Furthermore, the line-of-sight marker may be displayed within a range in which the reference marker is displayed in the vertical and horizontal directions of the screen.

  As a result, the user's line of sight is fixed when acquiring the face image, so that an appropriate face image can be captured.

  Further, the technology disclosed herein includes a face authentication device according to the above configuration, a plurality of storage units configured to be able to control locking / unlocking according to a control signal, and authentication by the face authentication device for a user. Is an article management system including a locking / unlocking control unit that sends a control signal instructing unlocking to a storage unit that is permitted to be used by the user.

  In addition, the technology disclosed herein is the case where the face authentication device according to the above configuration, the door configured to be able to control the locking and unlocking according to the control signal, and the user using the face authentication device have succeeded in authentication. The room entrance management system includes a locking / unlocking control unit that sends a control signal instructing unlocking to the door body.

  Further, the technology disclosed herein is a method for controlling display on a display unit in a face authentication apparatus that performs personal authentication using a face image, and the image captured by the imaging unit at the time of acquiring the face image. A reference marker for aligning the position of a facial part is displayed on the display unit together with an image displayed on the display unit and captured by the imaging unit. And has a form extending linearly.

  According to this configuration, when the face image is acquired, the image captured by the imaging unit is displayed on the display unit. Along with this image, a reference marker for aligning the position of the facial part is displayed on the display unit. This reference marker has a form extending linearly in the vertical direction of the screen. For this reason, the user only needs to align the position of the face part with the reference marker extending linearly in the vertical direction of the screen.For example, a person with a high height bends the knee or a person with a short height does not stretch. There is no need to do it. That is, since the user does not need to take an unnatural posture, the convenience of the face authentication device is improved.

  According to the present disclosure, in the face authentication device, it is not necessary for the user to take an unnatural posture when acquiring a face image, so that convenience is improved.

External view showing an example of an article management system according to the first embodiment Block diagram showing the functional configuration of the operation control unit Block diagram showing a configuration example of the locking and unlocking unit Example of user registration table Flow chart showing an example of operation during registration Example of face image registration screen Flow chart showing an example of operation during authentication Example of face image authentication screen Example of mode switching during face image acquisition Examples of other gaze marker positions The block diagram which shows the function structure of the entrance management system which concerns on 2nd Embodiment. Other examples of reference marker forms Other examples of reference marker forms Other examples of reference marker forms

  Hereinafter, embodiments of a face authentication apparatus and a management system including the face authentication apparatus will be described with reference to the drawings.

(First embodiment)
(overall structure)
FIG. 1 is an external view showing an example of an article management system. The article management system 1 in FIG. 1 includes an operation control unit 10 and a plurality of storage units 21 to 23. Each of the storage units 21 to 23 includes one or a plurality of storage units that store articles such as files and keys. Each storage section includes an openable / closable door or a sliding drawer as a member for opening and closing the storage section. Each storage unit can be locked, and is configured to be able to control locking / unlocking according to a control signal. The operation control unit 10 sends a control signal to each storage unit in accordance with a user operation.

  The operation control unit 10 includes an imaging device 11 as an imaging means, a touch panel 12, and a card reader 13. The imaging device 11 can photograph the front of the operation control unit 10. The touch panel 12 has a function as a display unit that displays a captured image of the imaging device 11 to the user and a function as an operation input unit that is operated by the user. The card reader 13 reads a user ID (Identification) from a magnetic card or the like owned by the user. In the configuration of FIG. 1, the operation control unit 10 includes a storage unit 14.

  The user operates the touch panel 12 to unlock the predetermined storage unit when storing the article in the predetermined storage unit or taking out the article from the predetermined storage unit. The appearance of the user's operation is photographed and recorded by the imaging device 11. For users, personal authentication is performed before use. For example, when performing authentication by card, the user passes the magnetic card through the card reader 13 and receives authentication. When performing authentication by ID, the user operates the touch panel 12 to input the ID and password.

  Here, in the present embodiment, a face image is used for personal authentication of the user. That is, in the present embodiment, a face authentication device that performs personal authentication using a face image is configured in the operation control unit 10. When acquiring a face image, for example, the following operation is performed. The imaging device 11 captures a user's face. An actual image displayed by the imaging device 11 is displayed on the screen of the touch panel 12, and the displayed image is acquired as a face image. For example, feature data extracted from a face image acquired at the time of authentication is compared with face image registration data registered in advance to determine whether authentication is possible.

  FIG. 2 is a block diagram showing a functional configuration of the operation control unit 10. The operation control unit 10 includes a control unit 15, a storage unit 16, and an unlocking control unit 17 in addition to the imaging device 11, the touch panel 12, and the card reader 13 described above. The control unit 15 controls the operation of the entire operation control unit 10, and performs, for example, control of shooting operation of the imaging device 11, screen display control and input control of the touch panel 12, user authentication processing, and the like. . The control unit 15 is realized by, for example, a processor and a program executed by the processor. The storage unit 16 includes a user registration table 161 for registering information about the user of the article management system 1 and a face image registration database (DB) 162 for registering user face image data. The storage unit 16 is realized by a storage device such as a non-volatile memory or an HDD (Hard Disk Drive), for example. The locking / unlocking control unit 17 sends a control signal instructing unlocking to the storage units 21-23 according to the authentication result.

  The storage unit 21 includes storage units A and B. Similarly, the storage unit 22 includes storage units C, D, and E, and the storage unit 23 includes storage units F, G, and H. Each storage part AH has the locking / unlocking part 30, respectively, and it is comprised so that locking / unlocking can be controlled according to a control signal. FIG. 3 is a block diagram illustrating a configuration example of the locking / unlocking unit 30. As shown in FIG. 3, the locking / unlocking unit 30 detects the open / close state of the doors and drawers of the corresponding storage units and the locking and unlocking devices 31 for locking and unlocking the doors and drawers of the corresponding storage units. Open / close sensor 32. The locking / unlocking device 31 includes a locking / unlocking mechanism 41, an actuator 42 such as a motor that drives the locking / unlocking mechanism 41, and a drive circuit 43 for the actuator 42. The locking / unlocking device 31 has a so-called auto-lock function that is automatically locked when a door or a drawer of the storage unit is closed. The locking / unlocking unit 30 of each of the storage units 21 to 23 is controlled by the locking / unlocking control unit 17 in the operation control unit 10. That is, the drive circuit 43 of the locking / unlocking device 31 is controlled by the control signal output from the locking / unlocking control unit 17. The output signal of the open / close sensor 32 is sent to the locking / unlocking control unit 17 in the operation control unit 10.

  FIG. 4 is a schematic diagram showing an example of the user registration table 161 in the storage unit 16. In the user registration table 161, information related to users registered in the article management system 1 is stored. In the example of FIG. 4, for each user, an ID, password, name, authority level, permission storage unit indicating a storage unit permitted to be unlocked, and a registered face image are registered. Here, it is assumed that the registered face image data is data including a combination of a plurality of feature information extracted from the actual face image. It is assumed that the face image data is stored in the face image registration DB 162, and a number for specifying the face image in the face image registration DB 162 is stored in the registered face image section in the user registration table 161.

  In the article management system 1 of FIG. 2, the face authentication device includes at least an imaging device 11, a touch panel 12 as a display unit, and a control unit 15. When the user is successfully authenticated by the face authentication device, the locking / unlocking control unit 17 sends a control signal for instructing unlocking to the storage unit A-H permitted to be used by the user.

(Operation example during registration)
FIG. 5 is a flowchart showing an example of operation during registration. It is assumed that the operation control unit 10 is in a standby state and the touch panel 12 displays a standby screen. The user who performs registration performs a login operation by touching the touch panel 12 serving as a standby screen (S11). Here, the user inputs his / her ID. The ID input may be performed by operating a keyboard displayed on the touch panel 12, or the card reader 13 may read the ID card. Enter a password if necessary. Thereafter, by performing a touch operation according to the screen display, the user selects “new registration” from the operation menu screen (S12), and selects “face authentication registration” from the new registration screen (S13).

  When face authentication registration is selected, the operation control unit 10 displays a face image registration screen as shown in FIG. 6 on the touch panel 12 (S14). In the screen example of FIG. 6, an actual image displayed by the imaging device 11 is displayed in a frame 51 at the center of the screen as a moving image of about 2 frames / second, for example. Since the user is in front of the operation control unit 10, the user's face image projected by the imaging device 11 is displayed in the frame 51. In this state, when the user touches (presses down) the shooting button 52 (S16), the control unit 15 uses, for example, an image displayed in the frame 51 as a face image after a predetermined time (for example, 3 seconds) from the touch. The acquired face image is displayed in the frame 51 (S17). The user confirms the displayed face image, and if OK, touches (presses) the completion button 53 (S19). On the other hand, if it is NG, the user touches (presses) the re-shoot button 54 (YES in S18). Then, the actual moving image projected by the imaging device 11 is displayed again in the frame 51, and the user can take another face image. If the user touches the cancel button 55 (YES in S15), the face authentication registration is canceled and the new registration screen returns.

  Here, in the screen example of FIG. 6, the reference marker RM is displayed in the frame 51 as a guide for the user to align the face position. This reference marker RM is for aligning the positions of both eyes, and consists of two straight lines extending in the vertical direction of the screen. The user adjusts the position of the face so that the positions of both eyes shown on the screen match the reference marker RM. For example, by moving the position of the face in the left-right direction or moving in the front-rear direction with respect to the imaging device 11, the interval between the eyes displayed on the screen is widened or narrowed. However, since the reference marker RM is a straight line extending in the vertical direction of the screen, it is not necessary for a person with a high height to bow down or a person with a short height to stretch.

  In the screen example of FIG. 6, a line-of-sight marker SM is displayed. This line-of-sight marker SM is displayed at a position relatively close to the imaging device 11 (arranged above) in the screen of the touch panel 12, and is used to fix the user's line of sight during photographing. For example, when a face image is shot 3 seconds after the shooting button 52 is pressed, a countdown display such as “3” → “2” → “1” → “0” is displayed on the line-of-sight marker SM. Do. Thereby, it can prevent that a user's eyes | visual_axis remove | deviates from the imaging device 11, and the face image suitable for authentication can be acquired reliably.

  When the completion button 53 is pressed (S19), the control unit 15 extracts predetermined feature data from the acquired face image and creates face image registration data including a combination of the extracted data (S1A). If the creation of the face image registration data is successful (YES in S1B), the control unit 15 stores the created face image registration data in the face image registration DB 162 (S1C). And after a user inputs other registration data (S1D), it adds to the user registration table 161 as user information of ID input by login, and completes new registration (S1E). Thereafter, the user performs a logoff operation, for example.

  If the face image registration data has not been successfully created (NO in S1B), the face image registration screen is displayed again, and a message such as “Registration failed. To do. In this case, a factor considered to be the cause of the failure may be displayed on the screen. Possible causes of failure in creating face image registration data include, for example, that a face cannot be detected in a captured image, and that a plurality of faces are detected in a captured image. At this time, the failed image may be displayed together.

(Operation example during authentication)
FIG. 7 is a flowchart showing an operation example during authentication. It is assumed that the operation control unit 10 is in a standby state and the touch panel 12 displays a standby screen. A user who requests authentication performs a login operation by touching the touch panel 12 serving as a standby screen (S21). Here, the user inputs his / her ID. The ID input may be performed by operating a keyboard displayed on the touch panel 12, or the card reader 13 may read the ID card. Enter a password if necessary. Thereafter, the operation control unit 10 displays a face image authentication screen as shown in FIG. 8 on the touch panel 12 (S22).

  In the screen example of FIG. 8, an actual image displayed by the imaging device 11 is displayed in a frame 61 at the center of the screen as a moving image of about 2 frames / second, for example. And the control part 15 acquires the image which the imaging device 11 is reflected as a face image, for example for every second (S24), and performs an authentication process (S25). When the face image can be normally acquired (YES in S26) and the feature data extracted from the acquired face image matches the face image registration data of the input ID (YES in S28), the control unit 15 has succeeded in authentication. (S2A). On the other hand, when the face image cannot be normally acquired (NO in S26), a message “face not found” is displayed in the message frame 62 (S27). When the acquired face image does not match the face image registration data of the input ID (NO in S28), a message “authentication is not possible” is displayed in the message frame 62 (S29). When the user touches the return button 63 (YES in S23), the face authentication is canceled and the original standby screen is restored.

  Here, in the screen example of FIG. 8, as in the screen example of FIG. 6, the reference marker RM is displayed in the frame 61 as a guide for the user to align the face position. This reference marker RM is for aligning the positions of both eyes, and consists of two straight lines extending in the vertical direction of the screen. The user adjusts the position of the face so that the positions of both eyes on the screen match the markers. For example, by moving the position of the face in the left-right direction or moving in the front-rear direction with respect to the imaging device 11, the interval between the eyes displayed on the screen is widened or narrowed. However, since the reference marker RM is a straight line extending in the vertical direction of the screen, it is not necessary for a person with a high height to bow down or a person with a short height to stretch. By adopting an imaging screen having the same configuration at the time of registration and authentication, the conditions at the time of imaging can be made uniform, and the authentication accuracy can be improved.

  When determining that the authentication is successful (S2A), the control unit 15 displays an operation screen for performing the unlocking operation of the storage units A-H. In this operation screen, the user registration table 161 is referred to, and only the storage unit permitted to the user with the input ID is displayed as a storage unit that can be unlocked.

  As described above, according to the present embodiment, an image captured by the imaging device 11 is displayed on the screen of the touch panel 12 when acquiring a face image. Then, a reference marker RM for aligning the positions of both eyes is displayed on the screen together with the image captured by the imaging device 11. The reference marker RM is a straight line extending in the vertical direction of the screen. For this reason, the user only needs to align the positions of both eyes with the reference marker RM, which is a straight line extending in the vertical direction of the screen. For example, a person with a high height bends the knee or a person with a short height stretches out. There is no need to That is, when acquiring a face image, the user does not have to take an unnatural posture, and convenience is improved.

  Two reference markers RM are displayed to align the positions of both eyes. For this reason, when the user aligns the positions of both eyes with the reference marker RM, the position of the face in the front-rear direction with respect to the apparatus is substantially stabilized. As a result, the distance between the user's face and the imaging device 11 does not vary every time the image is taken, and is almost fixed. Therefore, the correction process for adjusting the size of the face image is not required, thereby reducing the time required for the authentication process.

  In the above embodiment, the reference marker RM is displayed both at the time of registration and authentication of the face image. However, the present invention is not limited to this, and one of the registration time and the authentication time is displayed. In this case, the reference marker RM may be displayed. Further, a mode for displaying the reference marker RM may be provided so that the user can select whether or not to display the reference marker RM by operating the touch panel 12, for example. Alternatively, as shown in FIG. 9, in addition to the mode for displaying the reference marker RM, a mode for displaying a frame X indicating the position of the face is provided, and the user operates the touch panel 12 as an example of an input unit, for example. The mode may be selected according to the above. That is, the control unit 15 is configured to be able to switch between a first mode in which the reference marker RM is displayed and a second mode in which the frame X indicating the face position is displayed in accordance with the input received by the input unit. Also good.

  In the above embodiment, the line-of-sight marker SM is displayed together with the reference marker RM at the time of registration of the face image, but the line-of-sight marker SM may not be displayed. Further, as shown in FIG. 10, the position of the line-of-sight marker SM may be set between two straight lines constituting the reference marker RM. As a result, the user can surely enter the field of view when the position of both eyes is aligned with the reference marker RM, so that the position of both eyes deviates from the reference marker RM when gazing at the line of sight marker SM during shooting. Can be prevented. That is, it is preferable that the line-of-sight marker SM is displayed within the range in which the reference marker RM is displayed in the vertical and horizontal directions of the screen.

  Further, the interval between the two straight lines constituting the reference marker RM may be a predetermined length set in advance. In addition, for example, at the time of authentication, the distance between two straight lines constituting the reference marker RM may be set to a length corresponding to the distance between both eyes obtained from the registered face image data of the input ID. .

(Second Embodiment)
In the first embodiment, the article management system has been described as an example of the management system including the face authentication device. In the second embodiment, as an example of a management system including a face authentication device, an entrance management system that manages (limits) a person entering a facility will be described. The configuration and operation related to face authentication are the same as those in the first embodiment, and the description will be simplified as appropriate.

  FIG. 11 is a block diagram showing a functional configuration of the room entry management system. The room entry management system 2 in FIG. 11 includes an operation unit 70 and a door body 80. The door body 80 can be locked, and is configured such that locking / unlocking can be controlled in accordance with a control signal. The operation unit 70 sends a control signal to the door body 80 in accordance with a user operation. The operation unit 70 includes an imaging device 71, a touch panel 72, and a card reader 73. The imaging device 71 can photograph the front of the operation unit 70. The touch panel 72 has both a function as a display unit that displays a captured image of the imaging device 71 to the user and a function as an operation input unit that is operated by the user. The card reader 73 reads the user ID from an IC card or the like owned by the user.

  When the user opens the door body 80, he / she causes the card reader 73 to read an IC card or the like and then receives face image authentication. That is, in this embodiment, a face authentication device that performs personal authentication using a face image is configured in the operation unit 70. When acquiring a face image, for example, the following operation is performed. The imaging device 71 photographs the user's face. An actual image displayed by the imaging device 71 is displayed on the screen of the touch panel 72, and the displayed image is acquired as a face image. For example, feature data extracted from a face image acquired at the time of authentication is compared with face image registration data to determine whether authentication is possible.

  The control unit 75 controls the operation of the entire operation unit 70. For example, the control unit 75 controls the photographing operation of the imaging device 71, screen display control and input control of the touch panel 72, user authentication processing, and the like. The control unit 75 is realized by, for example, a processor and a program executed by the processor. The locking / unlocking control unit 77 sends a control signal for instructing the door 80 to unlock according to the authentication result. The storage unit 90 is provided in the central management server of the room entry management system and the like, and is used to register the user registration table 91 for registering information about the user of the room entry management system 2 and the face image data of the user. The face image registration DB 92 is provided. The control unit 75 can access the central management server via the network.

  The door body 80 has a locking / unlocking portion 81. The structure of the locking / unlocking part 81 is the same as that of the locking / unlocking part 30 shown, for example in FIG. The locking / unlocking unit 81 is controlled by an unlocking control unit 77 in the operation unit 70.

  In the entrance management system 2 of FIG. 11, the face authentication device includes at least an imaging device 71, a touch panel 72 as a display unit, and a control unit 75. When the user is successfully authenticated by the face authentication device, the locking / unlocking control unit 77 sends a control signal instructing unlocking to the door body 80.

  The operation in this embodiment is the same as that in the first embodiment. However, the operation at the time of registration may be performed by another registration device connected to the room entry management system 2. The operation at the time of authentication is performed by the operation unit 70. When the face image is acquired, the reference marker RM is displayed on the screen of the touch panel 72 (or another registration device) as a guide for the user to align the face as shown in the screen examples of FIGS. Is displayed. This reference marker RM is for aligning the positions of both eyes, and consists of two straight lines extending in the vertical direction of the screen. Thereby, the effect similar to 1st Embodiment is obtained. That is, when acquiring a face image, the user does not have to take an unnatural posture, and convenience is improved. In addition, since the distance between the user's face and the imaging device 71 is substantially fixed, correction processing for adjusting the size of the face image is not necessary, thereby reducing the time required for the authentication processing. .

<Other examples of reference marker shapes>
In each of the above-described embodiments, the reference marker RM is two vertical lines for aligning the positions of both eyes, that is, two straight lines extending in the vertical direction of the screen, but is not limited thereto. If the reference marker for aligning the position of the facial part has a form extending linearly in the vertical direction of the screen, the same effects as those of the above-described embodiments can be obtained. Hereinafter, other examples of the form of the reference marker will be described.

  In the example of FIG. 12A, the reference marker RMa is for aligning the position of the nose and is a single straight line extending in the vertical direction of the screen. The user may align the position of his nose with the reference marker RMa. In the example of FIG. 12B, the reference marker RMb is for aligning the positions of both eyes and the nose, and is three vertical lines extending in the vertical direction of the screen. The user only has to align the positions of his eyes and nose with the reference marker RMb. In addition, facial parts other than eyes and nose, for example, vertical lines for matching ears may be displayed as reference markers.

  If at least two vertical lines for aligning the positions of two or more parts of the face are displayed as reference markers, the distance between the user's face and the imaging device will vary each time an image is taken. Not fixed. Therefore, the correction process for adjusting the size of the face image is not required, thereby reducing the time required for the authentication process.

  Also, the form of the reference marker is not limited to a solid straight line, and other line types such as a broken line and a one-dot chain line may be used. Alternatively, symbols and specific symbols may be arranged in a straight line. For example, in the example of FIG. 12C, the reference marker RMc is for aligning the positions of both eyes, and the symbols “+” are arranged in the vertical direction of the screen. Of course, symbols or symbols other than “+” may be arranged in a straight line. Further, different forms may be mixed in the reference marker to be displayed. For example, in the example of FIG. 12B, the middle line for aligning the position of the nose may have a form other than a solid straight line, for example, a form in which the symbols “◯” are arranged in a straight line.

  Further, as shown in the present disclosure, for example, a face frame is displayed together with a reference marker for linearly extending in the vertical direction of the screen and for aligning the position of the face part, or the face part It is also possible to display a horizontal line that serves as a guide for the position in the vertical direction.

DESCRIPTION OF SYMBOLS 1 Article management system 2 Entrance management system 10 Operation control unit 11 Imaging device (imaging means)
12 Touch panel (display unit, input unit)
DESCRIPTION OF SYMBOLS 15 Control part 17 Locking / unlocking control part 70 Operation part 71 Imaging device 72 Touch panel (display part, input part)
75 Control unit 77 Locking / unlocking control unit 80 Door body A-H Storage unit RM, RMa, RMb, RMc Reference marker SM Line-of-sight marker X Frame

Claims (11)

A face authentication device for performing personal authentication using a face image,
Imaging means;
A display unit;
A control unit that displays an image captured by the imaging unit on the display unit and acquires the image displayed on the display unit as a face image when acquiring a face image;
The control unit is configured to display a reference marker for aligning the position of a facial part on the display unit together with an image captured by the imaging unit.
The face authentication device, wherein the reference marker has a form extending linearly in a vertical direction of the screen. The face authentication apparatus according to claim 1,
2. The face authentication apparatus according to claim 1, wherein at least two reference markers are displayed for aligning positions of two or more parts of the face. The face authentication apparatus according to claim 1,
2. The face recognition apparatus according to claim 2, wherein two reference markers for aligning the positions of both eyes are displayed. The face authentication apparatus according to claim 1,
One of the reference markers for displaying the position of the nose is displayed. The face authentication apparatus according to claim 1,
3. The face authentication apparatus according to claim 3, wherein three reference markers for aligning the positions of both eyes and nose are displayed. The face authentication device according to any one of claims 1 to 5,
It has an input unit that receives input,
The control unit is configured to be switchable between a first mode for displaying the reference marker and a second mode for displaying a frame indicating a face position in accordance with an input received by the input unit. Feature face recognition device. The face authentication device according to any one of claims 1 to 5,
The control unit displays a line-of-sight marker for fixing a user's line of sight together with the reference marker on the display unit when acquiring a face image. The face authentication apparatus according to claim 7.
The face recognition device, wherein the line-of-sight marker is displayed within a range in which the reference marker is displayed in a vertical direction and a horizontal direction of the screen. The face authentication device according to any one of claims 1 to 8,
A plurality of storage units configured to control locking and unlocking according to a control signal;
An article management system provided with a locking / unlocking control unit that sends a control signal instructing unlocking to a storage unit permitted to be used by the user when authentication by the face authentication device is successful for the user . The face authentication device according to any one of claims 1 to 8,
A door configured to be able to control locking and unlocking according to a control signal;
A room entrance management system comprising: a lock / unlock control unit that sends a control signal for instructing unlocking to the door when the user is successfully authenticated by the face authentication device. In a face authentication device that performs personal authentication using a face image, a method for controlling display on a display unit,
When acquiring a face image, the image captured by the imaging means is displayed on the display unit,
Along with the image captured by the imaging means, a reference marker for aligning the position of the facial part is displayed on the display unit,
The screen display control method, wherein the reference marker has a form extending linearly in a vertical direction of the screen.

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