JP7372566B2 - Management server, telework management support system, telework management support method and program - Google Patents

Description

The present invention relates to the management of telework users during telework (remote work).

In recent years, an increasing number of companies are implementing telework (remote work) due to the realization of work style reforms, business continuity in the event of a disaster, and attention to power saving measures. The bases include the spread of broadband and the development of information security technology.

When implementing telework, it may be necessary to monitor remote locations in order to manage the labor status of telework users (remote workers) and to prevent leakage of confidential information due to the operation of information processing devices by impersonated users. It is extremely difficult for administrators to constantly monitor telework users and remote locations. For this reason, some telework systems are equipped with a function that periodically sends and monitors information about telework users and remote locations to an administrator.

In Patent Document 1, face areas in a video shot by a camera device are detected, and if the number of corresponding face areas is 0 or 2 or more, an authentication error is determined. It describes a mechanism for performing user authentication when the number of relevant facial areas is one.

JP2009-211381A

Telework is a flexible way of working that makes effective use of space and time. The way a telework user's (teleworker) face appears in the photo varies depending on the work location, the lighting environment on that day, the location of the camera, the orientation of the face toward the camera, etc. (hereinafter collectively referred to as "telework conditions"). have a significant impact on the results.

When using the mechanism provided in Patent Document 1, it is possible to detect when someone is away from their seat or someone looking into them, but if the number of relevant facial areas is one, the way the user is photographed differs depending on the telework working conditions. Therefore, there is a possibility that personal authentication may be misrecognized. If the accuracy of available facial recognition technology is low, users will often be unable to use information processing terminals even if they are the actual user.

Furthermore, in order to prevent the above-mentioned erroneous recognition and improve the accuracy of identity verification under a plurality of telework conditions, it is also conceivable to register a large number of facial images for identity verification. However, the processing load of performing authentication processing from a large number of authentication facial images and the increase in the data volume of authentication facial images increase the load on the information processing terminals (telework PCs) used by teleworkers. .

Therefore, an object of the present invention is to reduce the processing load of face recognition and the errors in face recognition processing .

The information processing system of the present invention includes:
acquisition means for acquiring information regarding the orientation of the face when the face is photographed by the imaging means ;
a setting means for setting conditions for authenticating a specific face from an image photographed by the imaging means according to information regarding the face orientation acquired by the acquisition means;
and a control means for performing control to authenticate a face included in an image photographed by the imaging means based on the conditions set by the setting means .

According to the present invention, it is possible to reduce the processing load of face authentication and errors in face authentication processing .

1 is a diagram showing an example of a system configuration of a telework management support system in an embodiment of the present invention. It is a block diagram showing an example of the hardware configuration of an information processing device applicable to management server 101, teleworker PC 111, and administrator PC 121 in the embodiment of the present invention. 1 is a diagram showing an example of a functional configuration of a telework management support system in an embodiment of the present invention. 2 is a flowchart illustrating an example of the entire telework process of selecting an authentication face image according to work conditions and transmitting trail data in the telework management support system according to an embodiment of the present invention. 2 is a flowchart illustrating an example of an authentication facial image selection process according to work conditions of the telework management support system according to an embodiment of the present invention. 2 is a flowchart illustrating an example of registration processing of trail data and usable authentication facial images of the telework management support system in an embodiment of the present invention. It is a flowchart which shows an example of the update process of the facial image for authentication of favorite work conditions in the telework management support system of embodiment of this invention. FIG. 2 is a diagram illustrating an example of a screen on which a user specifies work conditions on a telework PC according to an embodiment of the present invention. FIG. 6 is a diagram illustrating an example of a screen for starting telework after updating of an authentication face image according to work conditions is completed in the telework management support system according to the embodiment of the present invention. FIG. 2 is a diagram showing an example of a screen of an image taken during telework in the telework management support system according to the embodiment of the present invention. FIG. 2 is a diagram showing an example of a screen of an image taken during telework in the telework management support system according to the embodiment of the present invention. FIG. 2 is a diagram showing an example of a screen of an image taken during telework in the telework management support system according to the embodiment of the present invention. It is a diagram showing an example of a data table in which user information is registered in the telework management support system according to the embodiment of the present invention. FIG. 2 is a diagram showing an example of a data table in which favorite work condition information is registered in the telework management support system according to the embodiment of the present invention. FIG. 2 is a diagram showing an example of a data table in which authentication facial image list information of favorite work conditions is registered in the telework management support system according to the embodiment of the present invention. FIG. 2 is a diagram showing an example of a data table in which trail data information is registered in the telework management support system according to the embodiment of the present invention. FIG. 2 is a diagram showing an example of a data table in which usable authentication face image information is registered in the telework management support system according to the embodiment of the present invention. FIG. 7 is a diagram showing an example of data of authentication face image information filtered according to some work conditions (work location and lighting environment) in the telework management support system according to the embodiment of the present invention. FIG. 19 is a diagram illustrating an example of data of authentication face image information grouped by face orientation with respect to the data example of FIG. 18 in the telework management support system according to the embodiment of the present invention. 20 is a diagram showing an example of data after the reliability of each authentication face image information for each group is calculated for the data example of FIG. 19 in the telework management support system according to the embodiment of the present invention. FIG. 21 is a diagram showing an example of data after the data example of FIG. 20 is sorted in descending order based on the reliability of each authentication face image information for each group in the telework management support system according to the embodiment of the present invention. FIG. FIG. 6 is a screen image diagram for explaining a process of registering a work location and an authentication face image in the telework management support system according to the embodiment of the present invention. It is a flowchart showing an example of a process of changing telework work conditions while the telework system is in use, in the telework management support system according to the embodiment of the present invention.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing an example of the system configuration of a telework management support system of the present invention.

The telework management support system 100 has a configuration in which one or more management servers 101, one or more teleworker PCs 111, and one or more administrator PCs 121 are connected via the Internet 130.

The management server 101 is a server that centrally manages information regarding the sitting/seating status of teleworkers, information regarding working hours, etc. as telework information, and is constructed on the service environment network 104.

The teleworker PC 111 and the administrator PC 121 connect to the management server 101 through authentication processing using a user ID and password, and when the management server 101 receives telework information from the teleworker PC 111, the management server 101 Store in database. Further, when there is a request to obtain telework information from the administrator PC 121, the necessary telework information is retrieved from the database of the management server 101.

The teleworker PC 111 is a terminal that accepts an application (declaration) from a teleworker as to whether the teleworker is on duty or off duty, and also detects whether the teleworker is seated or not seated from an image captured by a connected imaging device. Information that exists on the home/internal network 110 and indicates whether you are on duty or off duty and whether you are seated or not is created by a dedicated application and sent to the management server 101 via the router 112, the Internet 130, and the router 103. sent to.

The administrator PC 121 is a terminal for checking telework information, and is located on the in-house network 120. To check the telework information, the administrator PC 121 uses a web management console (operates on a web browser) and connects the router 122 and the Internet. 130 and the management server 101 via the router 103.

FIG. 2 is a block diagram showing an example of the hardware configuration of an information processing device applicable to the management server 101, teleworker PC 111, and administrator PC 121 in the embodiment of the present invention. Since each device has a similar configuration, it will be described with the same reference numerals.

As shown in FIG. 2, the information processing device includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, a storage device 204, an input controller 205, An audio input controller 206, a video controller 207, a memory controller 208, and a communication I/F controller 209 are connected.

The CPU 201 centrally controls each device and controller connected to the system bus 200.

The ROM 202 or storage device 204 stores a BIOS (Basic Input/Output System) and an OS (Operating System), which are control programs executed by the CPU 201, as well as computer-readable and executable programs and various necessary programs for realizing this information processing method. Holds data (including data tables).

The RAM 203 functions as the main memory, work area, etc. of the CPU 201. The CPU 201 loads programs and the like required for execution of processing from the ROM 202 or the storage device 204 into the RAM 203, and implements various operations by executing the loaded programs.

Input controller 205 controls input from input device 210 . Examples of the input device 210 include a keyboard, a touch panel, and a pointing device such as a mouse.

Note that if the input device 210 is a touch panel, the user can issue various instructions by pressing (touching with a finger or the like) an icon, cursor, or button displayed on the touch panel.

Further, the touch panel may be a touch panel capable of detecting positions touched by multiple fingers, such as a multi-touch screen.

The audio input controller 206 is capable of controlling audio input from the microphone/speaker 211 and recognizing the audio input from the microphone/speaker 211 when the microphone/speaker 211 operates as a microphone function. Furthermore, the audio input controller 206 is capable of controlling audio output to the microphone/speaker 211 and outputting audio to the microphone/speaker 211 when the microphone/speaker 211 operates as a speaker function.

Video controller 207 controls display on an external output device such as display 212. The display shall also include the display of a notebook computer that is integrated with the main body. Note that the external output device is not limited to a display, but may be a projector, for example. Furthermore, an input device 210 is provided for the device capable of accepting the above-mentioned touch operation.

Note that the video controller 207 can control a video memory (VRAM) for display control, and can use a part of the RAM 203 as a video memory area, or can provide a separate dedicated video memory. It is possible.

In the present invention, the first video memory area is used for display when the user normally uses the information processing device, and when a predetermined screen is displayed, the display content is superimposed on the display content of the first video memory area. It has a second video memory area used for display. The number of video memory areas is not limited to two, but it is possible to have multiple video memory areas as long as the resources of the information processing device allow.

Memory controller 208 controls access to external memory 213. External memory can be an external storage device (hard disk) that stores boot programs, various applications, font data, user files, editing files, various data, etc., a flexible disk (FD), or a PCMCIA card slot connected via an adapter. Compact flash (registered trademark) memory and the like can be used.

The communication I/F controller 209 connects and communicates with external devices via the network 214, and executes communication control processing on the network. For example, communication using TCP/IP, a telephone line such as ISDN, and a 3G line of a mobile phone is possible.

Note that the storage device 204 is a medium for permanently storing information, and its form is not limited to a storage device such as a hard disk. For example, a medium such as an SSD (Solid State Drive) may be used.

It can also be used as a temporary memory area during various processing performed by the communication terminal in this embodiment.

Note that the CPU 201 enables display on the display 212 by, for example, executing an outline font development (rasterization) process in a display information area in the RAM 203. Further, the CPU 201 allows the user to give instructions using a mouse cursor (not shown) on the display 212.

Next, with reference to FIG. 3, an example of the functional configuration of various devices in the embodiment of the present invention will be described.

The teleworker PC 111 includes an acquisition unit 311 that acquires a face image, a first authentication unit 312 that performs face authentication, and an event detection unit 313 that detects an event based on the authentication result.

The acquisition unit 311 acquires a facial image of a teleworker and an image of the surrounding situation of telework from an imaging device provided in or connected to the teleworker PC 111.

The first authentication unit 312 compares the face image selected from the pre-registered face images managed by the management server 101 and the face image acquired by the acquisition unit 311, and executes the teleworker authentication process. do.

The event detection unit 313 detects events such as labor events (seating or sitting) and security incidents (spoofing or peeping) based on the results of the authentication process by the first authentication unit 312.

The management server 101 includes a group management unit 301 that groups and manages facial images, a selection unit 302 that selects one from the grouped groups, and a transmission unit 303 that transmits facial images of the selected group to the teleworker PC 111. , a face orientation ratio acquisition unit 304 that acquires the orientation ratio of the face image, a second authentication unit 305 that performs face authentication processing on the management server 101, and an accuracy change unit that changes the accuracy of the face image selected based on the event detection result. 306.

The group management unit 301 groups pre-registered facial images for authentication based on the work location where telework is performed, lighting conditions, face orientation ratio, facial image accuracy (detection reliability), etc. .

The selection unit 302 receives at least one selection from the plurality of groups grouped by the group management unit 301.

The transmitting unit 303 transmits the group of facial images selected by the selecting unit 302 to the teleworker PC 111.

The face orientation ratio acquisition unit 304 acquires the face orientation ratio of the face image acquired from the acquisition unit 311 of the teleworker PC 111. Note that the face orientation ratio may be obtained from past face orientation ratios of teleworkers, or may be input by the user (804), which will be described later with reference to FIG.

When the first authentication unit 312 of the teleworker PC 111 fails to authenticate, the second authentication unit 305 acquires the face image acquired by the acquisition unit 311 of the teleworker PC 111, and uses the pre-registered authentication Authentication processing is performed by comparing with the face image.

The accuracy change unit 306 changes the face image of the group selected by the selection unit 302 based on the event detection result detected by the authentication process by the second authentication unit 305 or the result from the authentication result transmission unit 323 of the administrator PC 121. Change the accuracy (reliability) of The changed accuracy is taken into account when the group management unit 301 regroups the facial images for authentication.

The administrator PC 121 includes a face image receiving section 321 that receives face images, a face authentication input receiving section 322, and an authentication result transmitting section 323.

The face image reception unit 321 receives the face image acquired by the acquisition unit 311 of the teleworker PC 111, using the administrator PC 121.

The face authentication input receiving unit 322 presents the face image received by the face image receiving unit 321 to the administrator operating the administrator's PC, and receives an input from the administrator for authentication confirmation as to whether the person is the teleworker.

The authentication result transmitting unit 323 transmits the authentication result received by the face authentication input receiving unit 322 to the management server 101.

With these configurations, when authenticating whether the user of the teleworker PC 111 is a teleworker, the load on the face authentication processing of the telework PC is reduced by having the user select an authentication facial image according to the working conditions during telework. It is possible to prevent a delay in reaction due to an increase in

Note that in this embodiment, the functions of the group management unit 301 to accuracy change unit 306 are provided in the management server 101, but for example, these configurations may be configured in the administrator PC 121. .

Next, with reference to the flowchart of FIG. 4, the overall telework work process of selecting a face image for authentication according to work conditions and transmitting trail data in the telework management support system according to the embodiment of the present invention will be described.

The processes in steps S401 to S403, S411 to S416, and S419 shown in FIG. 4 are processes in which the CPU 201 of the teleworker PC 111 reads and executes a predetermined control program.

Furthermore, the processes in steps S404 to S410, S417 to S418, and S420 are processes in which the CPU 201 of the management server 101 reads and executes a predetermined control program.

The flowchart in FIG. 4 is a flow of processing that is started when a teleworker operating at a remote location connects to an in-house network or the like from the teleworker PC 111. For example, this is a process executed after a teleworker starts a telework application on the teleworker PC 111. Note that in the flowchart below, the application to be started is described as a client/server application for telework, but it may be a web application for telework. Further, the teleworker PC 111 may be started as a resident application and perform subsequent processing in the background.

First, in step S401, the teleworker PC 111 receives a login from the teleworker after starting the telework application. The teleworker PC 111 accepts login using the teleworker's user ID and password. The accepted user ID and password are sent to the management server 101 through communication not shown in FIG. 4, and compared with the teleworker information (FIG. 13) stored in the management server, and if they match, login is permitted. The user ID and password may be set by the teleworker when the resident application is started for the first time, and the set values may be used thereafter.

Here, with reference to FIG. 13, an example of the user information management table in the telework management support system of the present invention will be described.

A user information management table 1300 in FIG. 13 is a table for managing user information of users who use the telework management support system of the present invention, including a user ID 1301, name 1302, password 1303, administrator flag 1304, administrator ID 1305, and registration. It consists of items such as date and time 1306 and last login date and time 1307.

The user ID 1301 is an item for identifying a user who uses the telework management support system of the present invention, and an alphanumeric string is registered.

Name 1302 is an item for recording the user's name, and the name of the user is registered.

Password 1303 is an item for user authentication, and the password of the user is registered.

The administrator flag 1304 is an item indicating whether the user is an administrator. If the user is an administrator, "T (True)" is registered. If the user is not an administrator, "F (False)" is registered.

The administrator ID 1305 is an item for indicating the user's administrator, and the user ID of the user's administrator is registered. This item can be used only when the administrator flag 1304 is "F (False)".

Registration date and time 1306 is an item for recording the date and time of user registration, and the time when the user was registered is registered.

The last login date and time 1307 is an item for recording the last login date and time, and the time when the user last logged in is registered.

As described above, when a teleworker logs in, user authentication is performed in the management server by comparing the user ID 1301 and password 1303 items of the user information management table 1300. Furthermore, after the user is authenticated, the last login date and time 1307 item is updated. Returning to the explanation of FIG. 4.

In the next step S402, the teleworker PC 111 receives input of telework work conditions from the teleworker. The teleworker can specify conditions using the telework work condition specification screen illustrated in FIG. 8 . With reference to FIG. 8, an example of the telework work condition designation screen on the teleworker PC 111 of the telework management support system according to the present invention will be described.

FIG. 8 is a schematic diagram showing an example of a screen image for receiving specification of telework working conditions from a user on the teleworker PC 111 according to the embodiment of the present invention.

The telework work condition specification screen includes a favorite condition specification 801, a work location specification 802, a lighting environment specification 803, a face orientation pattern specification 804, an OK button 805, and a cancel button 806.

Favorite condition specification 801 is a place to specify whether to use favorite work conditions (FIG. 14) already registered in the management server 101 or teleworker PC 111. The favorite work condition information management table shown in FIG. 14 will be explained.

FIG. 14 is an example of a favorite work condition information management table that the management server or teleworker PC 111 has in the embodiment of the present invention, including a favorite work condition ID 1401, a user ID 1402, a work place 1403, a lighting environment 1404, and a left-facing face. (probability) 1405, frontal face (probability) 1406, and right-facing face (probability) 1407.

The favorite work condition ID 1401 is a unique item for identifying favorite work condition information in the telework management support system of the present invention.

Registered in the user ID 1402 is the user ID (1301 in FIG. 13) of the teleworker who has set the favorite work condition ID 1401.

In the work place 1403, work place information input in 2201 of FIG. 22, which will be described later, is registered. The teleworker uses this work location information as a key to select work conditions that he or she likes.

The lighting environment 1404 registers the lighting environment at the work place, and holds values such as "with sunlight" and "without sunlight", for example.

In 1405 to 1407, the probability of face orientation at each work place is registered.

10 to 12, the "face orientation pattern" which is one of the telework working conditions of the telework management support system of the present invention and the face image taken by the camera in the telework management support system are shown. An example of a display screen will be explained.

FIG. 10 shows the case of a left-facing face. It consists of a display screen 1010 showing the positional relationship between the teleworker and the camera, and a display screen 1020 of the face image taken by the camera in the corresponding telework management support system.

1010 is a pattern in which the face of the teleworker 1011 is slightly oriented to the left with respect to the camera 1014. The camera 1014 is installed on the monitor 1013, and this situation occurs when the teleworker 1011 is looking at another monitor 1012.

A display screen 1020 showing a face image taken by a camera in a situation corresponding to 1010 shows a teleworker whose face is facing left.

FIG. 11 shows the case of a front facing face. It consists of a display screen 1110 showing the positional relationship between the teleworker and the camera, and a display screen 1120 of a face image photographed by the camera in the corresponding telework management support system.

1110 is a pattern in which the face of the teleworker 1111 is facing the camera 1114. In this case, the teleworker 1111 is looking at a monitor 1113 in front of which a camera 1114 is installed.

A display screen 1120 showing a face image taken by a camera in a situation corresponding to 1110 shows a teleworker with a front-facing face.

FIG. 12 shows the case of a right-facing face. The screen 1210 shows the positional relationship between the teleworker and the camera, and the screen 1220 displays a face image taken by the camera in the corresponding telework management support system.

1220 is a pattern in which the face of the teleworker 1211 faces slightly to the right with respect to the camera 1214. The camera 1214 is installed on the monitor 1213, and such a situation may occur when the teleworker 1211 checks, for example, a document (not shown) placed on the right side.

A display screen 1220 showing a face image taken by a camera in a situation corresponding to 1210 includes:
A teleworker is photographed with his face facing right. Returning to the explanation of the table in FIG. 14.

The face orientation probabilities 1405 to 1407 in FIGS. 10 to 12 may be input by a teleworker 804 in FIG. 8, which will be described later, or the ratio of past face orientations at the same work location may be measured and the probabilities applied. You can do it like this.

As described above, by using the favorite work condition information management table 1400 as shown in FIG. 14, it is possible to use the "favorite work conditions" (FIG. 14) registered in the management server 101 and the teleworker PC 111. Returning to the explanation of the screen image in FIG. 8.

As shown in FIG. 8, favorite work conditions can be selected from the drop-down list. When a teleworker specifies a favorite work condition specification 801, the details of the favorite work condition are automatically set in a work location specification 802, a lighting environment specification 803, and a face orientation pattern specification 804. If the favorite work conditions are not used, the teleworker individually specifies the following work location specification 802, lighting environment specification 803, and face orientation pattern specification 804.

Work location designation 802 is where the work location is designated. As shown in Figure 8, available work locations can be selected from the drop-down list. Note that a screen image of the work place registration process will be explained with reference to FIG. 22, which will be described later.

The lighting environment specification 803 is a section for specifying the lighting environment of the work place on the day of work. As shown in FIG. 8, a checkbox for "with sunlight" can be checked.

The face direction pattern designation 804 is a place to designate the pattern of the face direction photographed by the web camera. As shown in FIG. 8, the composition ratio of the face orientation can be selected from the respective drop-down lists of "left facing", "front facing", and "right facing".

The OK button 805 is a button that accepts completion of designation of telework work conditions from the teleworker.

A cancel button 806 is a button that accepts cancellation of specified telework work conditions from a teleworker.

As described above, the teleworker can specify telework work conditions using the screen shown in FIG. 8. Next, with reference to FIG. 22, a screen image of the process of first registering a work location will be described.

FIG. 22 is a screen image diagram for explaining the process of registering a work location and an authentication face image in the embodiment of the present invention. Note that the registration process shown in the screen image in Figure 22 is a process that is performed before the teleworker starts telework. This is the screen image displayed when

In 2201 of FIG. 22, an input field for inputting a work location is displayed. In the case of 2201, the teleworker inputs "home" because the work place is home. Alternatively, for example, if it is a satellite office, you can enter "office A". If the teleworker PC 111 has a location information detection function (for example, detected from the GPS function, location information of a mobile phone base station, location information of a Wi-Fi base station, etc.), the 2201 column will display the detected location by default. You may also input an input value that is linked to.

2202 is a section for specifying the certification environment at the workplace. As shown in 2202, for example, a checkbox for "with sunshine" can be entered.

2203 displays a face image that is photographed to first register an authentication face image. As the face image for authentication, the image 2203 taken at the timing when the shooting button 2204 is pressed may be registered, or, for example, the image 2203 captured when the shooting button 2204 is pressed can be registered by freely moving the face for 5 seconds after the shooting button is pressed. Images may be taken periodically and only facial images that can be used for authentication may be picked up and registered.

This completes the explanation of the work place and authentication face image registration processing using the screen image of FIG. 22, and returns to the explanation of the flowchart of FIG. 4.

Next, in step S<b>403 , the teleworker PC 111 accepts a process for specifying telework conditions by pressing the OK button 805 from the teleworker, and transmits the telework conditions to the management server 101 .

Next, in step S404, the management server 101 receives the telework working conditions transmitted in step S403 from the teleworker PC 111.

Next, in step S405, the management server 101 determines whether the telework work conditions received in step S404 match the "favorite work conditions" of the management server 101. If the "favorite work conditions" of the management server 101 match the telework work conditions received from the teleworker PC 111, the process moves to step S406, and if the two work conditions do not match, the process moves to step S409. Transition processing.

When the process transitions to step S406, the management server 101 refers to the authentication face image update necessity flag 1503 item of the authentication face image information management table 1500 (FIG. 15) of the favorite work condition, and Determine whether it is necessary to update the authentication face image.

Here, with reference to FIG. 15, an example of a facial image information management table for authentication of preferred working conditions in the telework management support system of the present invention will be described.

Favorite working condition authentication face image information management table 1500 in FIG. 15 is a table for managing favorite working condition information of the telework management support system of the present invention, including favorite working condition ID 1501, authentication facial image list 1502, and authentication facial image information management table 1500 for authentication. It consists of an item of face image update necessity flag 1503.

The favorite work condition ID 1501 is an item for identifying favorite work condition information in the telework management support system of the present invention, and the favorite work condition ID 1401 item of the favorite work condition information management table 1400 is registered.

The authentication facial image list 1502 is an item indicating a selected authentication facial image list corresponding to the favorite work condition, and a specified number of usable authentication facial image information management table 1700 (FIG. 17). The face image ID 1701 item in is registered.

An example of an authentication face image information management table that can be used in the telework management support system of the present invention will be described with reference to FIG. 17.

The usable authentication facial image information management table 1700 in FIG. 17 is a table for managing information on facial photo data (authentication facial image) used for face recognition of teleworkers in the telework management support system of the present invention. It consists of the following items: face image ID 1701, user ID 1702, path 1703, shooting time 1704, shooting location 1705, lighting environment 1706, face orientation 1707, number of uses 1708, number of misrecognitions 1709, and reliability 1710.

The face image ID 1701 is an item having a unique value for identifying the face image for authentication in the telework management support system of the present invention, and an alphanumeric string is registered.

The user ID 1702 is an item indicating the user ID of the teleworker corresponding to the authentication face image, and the user ID 1301 item of the user information management table 1300 is registered.

The path 1703 is an item indicating the storage location of the authentication face image, and represents a folder path name and a file name. The actual face image data is stored in the location specified by this item.

The photographing time 1704 is an item for recording the time when the authentication face image was photographed, and the time when the authentication face image was photographed is registered.

The photographing location 1705 is an item for recording the place where the authentication face image was photographed, and the place where the authentication face image was photographed is registered.

The lighting environment 1706 is an item for recording the lighting environment when the authentication face image was photographed, and is set to either "with lighting" or "without lighting".

The face orientation 1707 is an item for recording the face orientation of the authentication face image, and is set to one of "left facing", "front facing", and "right facing". Note that the direction of the face can be detected using, for example, a technique such as Japanese Patent Application Laid-Open No. 2009-151394.

The number of uses 1708 is an item for recording the number of times the authentication face image has been used for face recognition of a teleworker, and a number string is registered.

The number of misrecognitions 1709 is an item for recording the number of misrecognitions when the authentication face image is used for face recognition of a teleworker, and a numerical string is registered therein.

The reliability level 1710 is an item for recording the reliability level that the authentication face image can be used for face recognition of a teleworker, and a number string is registered. The values of the reliability 1710 items of the authentication face image vary depending on the value of the number of uses 1708, the value of the number of misrecognitions 1709, and the settings of the telework work condition group.

As described above, an appropriate authentication facial image can be selected from the available authentication facial image information management table 1700 according to various telework work information. Having finished the explanation of the table in FIG. 17, we will return to the explanation of the table in FIG. 15.

The authentication face image update necessity flag 1503 in FIG. 15 is an item indicating whether or not it is necessary to update the authentication face image of the teleworker PC 111 when using the favorite work condition next time. Either "Required" or "No" is registered. The “required” and “no” values of the authentication face image update necessity flag 1503 are values set as a result of the decision branch in step S703 in FIG. 7, which is the process in step S420, which will be described later. Having finished the explanation of the table in FIG. 15, we will return to the explanation of the flowchart in FIG. 4.

In step S406 of FIG. 4, the management server 101 refers to the authentication face image update necessity flag 1503 item of FIG. 15 and determines whether it is necessary to update the authentication face image of the favorite work condition. do. If 1503 is "required", it is necessary to update the authentication face image used in the favorite work conditions to a new one. If it is necessary to update the facial image for authentication of the preferred work condition, the process advances to step S408. If it is not necessary to update the facial image for authentication of the preferred work condition, the process advances to step S407.

When transitioning to the process in step S407, the management server 101 does not need to update the telework working conditions received in step S404 to "favorite working conditions" (in other words, the management server 101 does not need to update the telework working conditions received in step S404 to "favorite working conditions" (that is, the data held on the teleworker PC 111 remains as is). (good), so the authentication face image sent from the management server 101 to the teleworker PC 111 is set to Null (that is, nothing is sent).

On the other hand, when the process moves to step S408, the management server 101 acquires the authentication facial image list 1502 items for the favorite work conditions from the authentication facial image information management table 1500 (FIG. 15) for the favorite work conditions. The authentication face image list 1502 of the favorite work conditions is set by the process of step S704 in FIG. 7, which is the process of step S420 described later. That is, the authentication facial image that has been set is set by referring to the authentication facial image information management table 1500 of favorite work conditions that was set after previously performing telework. Note that after the process of step S408 is completed, the authentication face image update necessity flag 1503 is set to "no" and the flag is reset.

Further, in step S405, if the telework work conditions received in step S404 do not match the "favorite work conditions" of the management server 101, the process transitions to step S409, and in step S409, the management server 101 Based on the received telework work conditions, selection processing of an appropriate facial image for authentication is performed. Details of step S409 will be explained with reference to FIG.

FIG. 5 is an example of a flowchart showing a process of selecting an authentication face image according to work conditions of the telework management support system according to the embodiment of the present invention.

The process shown in the flowchart of FIG. 5 is a process in which the CPU 201 of the management server 101 reads and executes a predetermined control program.

The flowchart in FIG. 5 is a process that is started when the process in step S409 in FIG. 4 or the process in step S702 in FIG. 7 is executed.

First, in step S501, the management server 101 determines that the two items of the telework working condition received in step S404 match the "work location" and "lighting environment" from the available authentication face image information management table 1700. Filter your data.

Here, the telework working conditions specified as shown in FIG. 8 will be explained as an example. The "work place" of the telework work conditions shown in FIG. 8 is "home" and the "lighting environment" is "no sunlight." Therefore, data in which the "work place" item is "home" and the "lighting environment" item is "no sunlight" is filtered from the available authentication face image information management table 1700. An example of the resulting data is shown in FIG.

In step S502, the management server 101 groups the available authentication face images filtered in step S501 based on face orientation.

Here again, the telework work condition "face orientation pattern" specified as shown in FIG. 8 will be explained as an example. As specified in FIG. 8, it is necessary to divide into three grooves: "left facing", "front facing", and "right facing". As a result, as shown in FIG. 19, the "leftward" group is 1901, and there are nine pieces of data in total. The "front facing" group is 1902, and there are 18 pieces of data in total. The “rightward” group is 1903, and there are three pieces of data in total.

In step S503, the management server 101 performs repeated processing for each group.

In step S504, the management server 101 calculates the total number of uses and the total number of misrecognitions of all available authentication face images in the group.

For example, as shown in FIG. 19, in the case of "left facing" group 1901,
Total number of uses: 20+12+14+25+9+15+30+11+28=164
Total number of misrecognitions: 10+1+7+8+1+3+7+2+4=43
In step S505, the management server 101 determines the erroneous recognition ranking of each authentication facial image among all available authentication facial images of the group. Note that if the number of misrecognitions is the same, the one with the fewer number of uses is ranked higher.

For example, as shown in FIG. 19, if the data is sorted in descending order of the number of misrecognitions for the "leftward" group 1901, the result will be as shown in 2001 in FIG. Among them, the data whose "face image ID" item is "F001" has a "number of misrecognitions" of "10", so the misrecognition rank is set to "1". For data whose "face image ID" item is "F014", the "number of misrecognitions" is "8", so the misrecognition rank is set to "2". Since the data whose "face image ID" item is "F028" and the data whose "face image ID" item is "F010" have the same "number of misrecognitions" of "8", the number of uses of each is also checked. Since the number of uses of "F028" is "9" and the number of uses of "F010" is "12", the misrecognition rank of "F028" is set as "8" and the misrecognition rank of "F010" is set as "9".

Furthermore, for other groups, the ranking of misrecognition of data is determined using similar rules. The result of the "front facing" group is as shown in 2002 in FIG. The result of the "rightward" group is as shown in 2003 in FIG. This determines the erroneous recognition ranking of each authentication face image.

In step S506, the management server 101 repeatedly processes each available authentication face image in the group.

In step S507, the management server 101 calculates the usage rate, individual correct answer rate, and overall correct answer rate of the usable authentication face image in the group.

For example, as shown in FIG. 20, in the case of the "left facing" group 2001, for "F001",
Usage rate: Number of times the applicable authentication face image is used ÷ Total number of times the group uses it = 20 ÷ 164 = 0.121951
Individual correct answer rate: (Number of times the applicable face image for authentication is used - Number of times of misrecognition of the applicable face image for authentication) ÷ Number of times the applicable face image for authentication is used = (20-10) ÷ 20 =0.5
Overall accuracy rate: Number of times the applicable face image for authentication is used - Number of times of misrecognition of the applicable face image for authentication) ÷ (Total number of times the group is used - Total number of times of misrecognition for the group) = ( 20-10) ÷ (164-43) = 0.082645
In step S508, the management server 101 calculates and updates the reliability of the usable authentication face image based on the calculation result of step S507.

An example of a typical reliability calculation method is shown below. There are other methods in addition to the method described here, and the reliability may be calculated using other methods.

Reliability of available facial images for authentication = Usage rate of applicable facial images for authentication ×
Individual accuracy rate of the applicable face image for authentication × Overall accuracy rate of the applicable face image for authentication × Misrecognition rank of the applicable face image for authentication × 100
For example, as shown in FIG. 20, in the case of "F001" of the "left facing in the morning" group 2001,
Reliability of “F001”: 0.121915×0.5×0.082645×1×100
=0.503931
The above result is rounded to the fourth decimal place, and "0.504" is registered in the "reliability" item of "F001" in the "leftward direction in the morning" group 2001 in FIG. 20. The usage rate of other available authentication face image data (other data in the "left-facing" group 2001, or data in the "front-facing" group 2002 and data in the "right-facing" group 2003) is determined in the same way. , calculate the individual correct answer rate, overall correct answer rate, and reliability. The final calculation results for all data in all groups are shown in FIG.

Step S509 is the end of the repeating process of step S506. If there is next data in the group, the data is moved to the next data and the process returns to step S506. If there is no next data for the group, this iterative process is completed. The process advances to step S510.

In step S510, the management server 101 sorts the grooves in descending order of reliability, and selects the top few available images based on the selection ratio of the group according to the setting value of "face orientation pattern" in the telework working conditions. Select a suitable facial image for authentication.

For example, when data within a group is sorted in descending order based on the reliability calculation results shown in FIG. 20, the results are shown in FIG.

Here again, the telework conditions specified as shown in FIG. 8 will be explained as an example. The setting values for the "face orientation pattern" item of the telework work conditions shown in FIG. 8 are "left facing: 0.3", "front facing: 0.6", and "right facing: 0.1". Therefore, the selection ratio of face orientation for each time period is as follows.
Leftward: 1 x 0.3 = 0.3
Front facing: 1 x 0.6 = 0.6
Rightward: 1 x 0.1 = 0.1

Furthermore, it is assumed that "10 face images are required for authentication." In the case of the "left facing" group 2101, the selection ratio is 0.3, so from the "left facing" group 2101, the top 3 (10 x 0.3) usable authentication face images, "F081", " Select "F051" and "F032". When the same calculation method is applied to the "front-facing" group 2102 and the "right-facing" group 2103, the top 6 (10 x 0.6) usable authentication face images from the "front-facing" group 2102, Select "F072", "F056", "F096", "F052", "F011", and "F005". From the “rightward facing” group 2103, the top one (10×0.1) usable authentication face image “F006” is selected.

Step S511 is the end of the repeating process of step S503. If there is a group after the group, the group is moved to the next group, and the process returns to step S503. If there is no group after the group, this iterative process is completed and all processes are completed.

Up to this point, the telework working conditions shown in Figure 8 are as follows: "Work location" is "Home", "Lighting environment" is "No sunlight", and "Face orientation pattern" is "Left facing 0.3, Front facing 0.6, Right facing 0. .1" and "10 required facial images for authentication", the data example of the usable facial image management table for authentication shown in Figure 17 is an example of data, and the appropriate facial image list for authentication is selected. can. The results are "F081", "F051", "F032", "F072", "F056", "F096", "F052", "F011", "F005", "F006".

As shown in the flowchart in Figure 5, even when acquiring a predetermined number of facial images, the appropriate

The procedure for selecting a face image for authentication according to work conditions in the telework management support system according to the embodiment of the present invention has been described above with reference to FIG. 5 . Returning to the explanation of the flowchart in FIG. 4.

When the authentication facial image list selected in step S409 of FIG. 4 or the authentication facial image list of the favorite work conditions set in step S408 (column 1502 in FIG. 15) is obtained, management is performed in the next step S410. The server 101 transmits the acquired authentication face image list to the teleworker PC 111. Note that when the process moves to step S410 after the processing in step S407, the authentication face image list contains nothing, and empty information (Null) is sent to the teleworker PC 111.

Next, in step S411, the teleworker PC 111 receives the authentication face image list transmitted from step S410.

In the next step S412, the teleworker PC 111 updates the authentication face image list held on the teleworker PC 111 side to the authentication face image list received in step S411. Note that when the process transitions to step S412 after the process in step S407, the authentication face image list is not updated because the received authentication face image is null information (Null). That is, if the authentication face image list of favorite work conditions stored on the management server 101 side is not changed, no unnecessary load is placed on the network or the teleworker PC 111.

In the next step S413, the teleworker PC 111 displays a comment to the effect that the update of the authentication face image has been completed, such as message 901 in FIG. 9, "Update completed and telework started." When the teleworker presses the OK button 902, telework processing is started and acquisition of captured images from a camera (for example, 1014 in FIG. 10) connected to or attached to the teleworker PC 111 is started.

In the next step S414, the teleworker PC 111 monitors the reception of whether the teleworker finishes the telework management process. If there is a request to end telework, the process moves to step S419, and if no request to end telework comes, the process moves to step S415.

When the process transitions to step S415, the teleworker PC 111 periodically monitors the teleworker's working status, and detects labor events such as "seating" and "seating", "spoofing" and "peeping" during telework. Detect events such as security incidents. The event detection process is disclosed in, for example, Japanese Patent Laid-Open No. 2015-103198, which our company previously applied for, so a description thereof will be omitted.

When detecting an event, the "trail facial image" of the user being photographed and the "authentication facial image" used to determine whether the trailing facial image matches the teleworker, etc. are used as a trail along with the detection results. Save as data. An example of a trail data information management table generated upon event detection will be described with reference to FIG. 16.

FIG. 16 is a diagram showing an example of a data table in which trail data information is registered in the telework management support system according to the embodiment of the present invention.

A trail data management table 1600 in FIG. 16 is a table for managing trail data information of the telework management support system of the present invention, including a trail ID 1601, user ID 1602, trail data storage location 1603, used authentication face image 1604, and personal authentication. It consists of items such as result 1605.

The trail ID 1601 is an item for identifying trail data information in the telework management support system of the present invention, and an alphanumeric string is registered.

The user ID 1602 is an item indicating the user ID of the user corresponding to the trail data information, and the user ID 1301 item of the user information management table 1300 is registered.

The trail data storage location 1603 is an item indicating the path of the location where trail facial images as trail data are stored, and a folder path is registered. Note that this folder path is a path that can be accessed from both the teleworker PC 111 and the management server 101. The trail data storage destination 1603 is assumed to be the folder path of the trail face image, but it is also possible to store the trail face image file itself in this table and send the entire table as a trail face image when sending it to the management server 101. good.

The face image ID used as the authentication face image is registered in the used authentication face image 1604, and the face image ID 1701 item of the authentication face image information management table 1700 that can be used on the teleworker PC 111 is registered. ing.

The personal authentication result 1605 is an item that records the event detection result by comparing the face image in the trail data with the face image for authentication. is registered.

Data for one record of the above table is specified in the process of step S415. Returning to the explanation of the flowchart in FIG. 4.

Note that the event detection process in step S415 is executed in the background after starting in step S413 until ending in step S414.

When an event is detected in step S415, the process moves to step S416, and the teleworker PC 111 transmits the event detection result detected in step S415 and trail data (one record of the data in FIG. 16) to the management server 101.

In the next step S417, the management server 101 receives the event detection result and trail data transmitted in step S416.

In the next step S418, the management server 101 uses the event detection result and the trail data received in step S417 to start re-authentication of the trail face image and registration process of the trail face image. The re-authentication and registration process of the trail face image will be explained with reference to FIG. 6.

FIG. 6 is a flowchart illustrating an example of registration processing of trail data and usable authentication face images of the telework management support system according to the embodiment of the present invention.

The processes of steps S601 to S604 and steps S607 to S613 shown in the flowchart of FIG. 6 are processes in which the CPU 201 of the management server 101 reads and executes a predetermined control program. Furthermore, the processes in steps S605 and S606 are processes in which the CPU 201 of the administrator's PC 121 reads and executes a predetermined control program.

The flowchart in FIG. 6 is a process that is started when the process transitions to step S418 in FIG.

First, in step S601 of FIG. 6, the management server 101 performs conditional branch processing based on the event detection result received in step S417. If the received event detection result is "Away from the seat", the process moves to step S613, and the information "Away from the seat" and the trail data at the time of leaving the seat are registered as trail data. An example of registered data is the second row in FIG. 16.

In addition, in step S601, if the event detection result received in step S417 is "seated" or "peeking", it is authenticated that the photographed users include the teleworker himself, so the next step is to The process transitions to step S610.

In step S610, the management server 101 calculates the number of uses 1708 of the authentication facial image used for event detection in step S414 from among the authentication facial images (for example, the plurality of facial images in FIG. 21) possessed by the teleworker PC 111. Increase by 1. When the number of uses becomes larger than the number of misrecognitions, the effectiveness (reliability) of the facial image for authentication increases.

Note that if it is determined in step S601 that "peeping" has occurred, in the process of step S610, a warning such as locking the screen or sounding an error sound is notified to the teleworker PC 111, or the camera image is saved as a video. It is also possible to send an instruction to take security measures such as

After the process in step S610, in step S612, the management server 101 acquires the authenticated trail face image of the trail data and stores it in the management server 101 as an authentication face image. The saved new facial image for authentication is used as the facial image for authentication in step S602, which will be described later.

Next, in step S613, the management server stores an image taken at the time of teleworker authentication as trail data together with information such as "seating" or "looking into". Examples of stored data are the first and fourth lines in FIG. 16.

On the other hand, in step S601, if the event detection result received in step S417 is "spoofing", the process transitions to step S602.

In the process proceeding to step S602, the management server 101 acquires the image that could not be authenticated by the teleworker PC 111, and performs the process of authenticating it also by the management server 101.

In step S602, the management server 101 extracts a facial area from the photographed image received in step S417, and performs identity authentication processing using the authentication facial image of the corresponding teleworker held by the management server 101. The authentication facial image performed in step S602 includes more authentication facial images including the authentication facial image owned by the teleworker PC 111. For example, the facial image owned by the teleworker PC 111 in FIG. In addition, it includes the face image saved in step S612, the face image not selected in FIG. 21 (not sent to the teleworker PC 111), etc.

In step S602, the management server 101 performs authentication processing and transmits the authentication result to the next step S603.

In step S603, the management server separates the next process depending on whether the authentication result is "seated" or "impersonation". If the authentication result is "seated", the process moves to step S614, and if the authentication result is "spoofing", the process moves to step S604.

When the process transitions to step S614, that is, when the identity of the teleworker can be confirmed through re-authentication by the management server and the authentication result is "seated", the face for authentication held in the teleworker PC 111 This means that it could not be detected in the image. Therefore, in step S614, if the result of re-authentication a predetermined number of times or more is "seated", a warning is displayed to check whether there is an error in the telework working conditions of the detected facial image for authentication, and Performs processing that prompts changes to be made. With reference to FIG. 23, a process for prompting a change in telework working conditions will be described.

FIG. 23 is a flowchart illustrating an example of a process for changing the telework working conditions of the telework management support system while the telework system is in use, according to the embodiment of the present invention.

The processes in steps S2301 to S2306 shown in the flowchart of FIG. 23 are processes in which the CPU 201 of the management server 101 reads and executes a predetermined control program.

The flowchart in FIG. 23 is a process that is started when the process transitions to step S614 in FIG.

First, in step S2301 of FIG. 23, the management server 101 counts the number of times the authentication result is "seated" in step S603, and determines whether a predetermined number of times (for example, 10 times) has been counted. If the predetermined number of times has not been counted, the process in the flowchart of FIG. 23 is finished and the process returns to the flowchart of FIG. 6.

On the other hand, in step S2301, if the number of times the user is "seated" reaches a predetermined number (for example, 10 times), the process transitions to step S2302. In step S2302, the management server 101 sends the name of the favorite work condition (for example, "home" registered in 801) including the authentication face image authenticated at the time of re-authentication in step S602 to the teleworker PC 111. Submit the candidates whose telework conditions should be changed.

When the management server 101 sends the name of the favorite work condition including the authentication face image authenticated at the time of re-authentication to the teleworker PC 111, the teleworker PC 111 receives a request from the teleworker as to whether or not to change the telework work condition ( (not shown), transmits the results of changing the telework working conditions to the management server 101.

In the next step S2303, the management server 101 receives the results of changing the telework working conditions from the teleworker PC 111.

Next, in step S2304, the management server 101 determines whether the telework work condition change result received in step S2303 is changed or unchanged, and the subsequent processing is divided depending on the determination result. If the telework conditions are not changed, the flowchart in FIG. 23 is ended and the process returns to the flowchart in FIG. 6. On the other hand, if it is determined that the telework conditions are to be changed, the process moves to step S2305.

When the process moves to step S2305, the management server 101 sets the favorite work conditions that were changed in step S2304 as an authentication face image list from this process onwards. Thereafter, the process transitions to step S408 in FIG. 4, selects an authentication face image, and performs the processes from step S409 onwards.

As a result of the process shown in FIG. 23, if the facial recognition accuracy of the telework working conditions set initially or by default by the user is poor, the management server 101 sends a candidate to change to an appropriate favorite working condition, and We can help you choose suitable telework conditions. Returning to the explanation of the flowchart in FIG. 6.

If the process returns to FIG. 6 as a result of the process in step S614, the process moves to step S609. If the process moves to step S609, this means that all of the authentication face images sent to the teleworker PC 111 in step S410 have been erroneously recognized. The authentication face image sent to ”, “F011”, “F005”, and “F006”, the number of misrecognitions 1709 for all of these 10 pieces of data is increased by one.

Next, in step S611, the management server 101 also increases by one the number of uses 1708 of all data for which the number of misrecognitions was increased in step S609.

As in the above process, when the teleworker's PC 111 determines that it is an impersonation and cannot be authenticated, and the data on the management server 101 is used to authenticate the teleworker, the authentication face image of the teleworker's PC 111 may be misrecognized. By increasing the number and number of uses, the reliability of these facial images for authentication is decreasing.

The subsequent processing from step S612 onwards is the same as the processing described above, so a description thereof will be omitted. The process returns to the flow of conditional branching in step S603.

In step S603, if the determination as a result of the re-authentication in step S602 is not "seated", that is, it is determined to be impersonation again, information to prompt the teleworker's administrator to determine whether or not it is "impersonation" is provided. The process of transmitting to the administrator PC 121 is performed.

If the authentication result is not "seated" in step S603, then in the next step S604, the management server 101 transmits the trail face image of the trail data to the administrator PC 121.

In the next step S605, the administrator PC 121 receives and displays the trail facial image from the management server 101, and displays a screen that prompts the teleworker's administrator to input whether or not the user being photographed is the teleworker. (Illustrated).

Next, the administrator of the teleworker checks the trail face image on the displayed screen and inputs into the administrator's PC 121 a notification indicating whether the teleworker himself/herself is operating.

In the next step S606, the administrator PC 121 transmits to the management server 101 information as to whether the trail face image input by the administrator of the teleworker is that of the teleworker.

Next, in step S607, the management server 101 receives the confirmation result of the trail face image transmitted from the administrator PC 121.

Next, in step S608, processing is divided depending on whether or not the result received in step S607 is the teleworker ``principal''.

If the result received in step S607 is that the teleworker is the "principal", the process moves to step S609. The subsequent processing is similar to the process described above.

On the other hand, if the result received in step S607 is that the teleworker is not the "principal", the process transitions to step S611, and unlike the case where the teleworker is "principal", the process of step S609 is not executed and the process returns to step S611. and transition. Since it is not an error that the teleworker himself/herself is not included in the authentication face image authenticated on the teleworker PC 111 side, there is no need to increase the number of misrecognitions 1709 in step S609.

In addition, if it is determined in step S608 that the teleworker is not the "identified person", in the process of step S611, a warning such as locking the screen or sounding an error sound is notified to the teleworker PC 111, and the camera image is saved as a video. It is also possible to send an instruction to take security measures such as

In the next step S612, if it is determined from step S608 that the teleworker is not the "principal", the trail facial image is also not an image of the teleworker, so the process is skipped and the process moves to step S613.

In step S613, the management server stores an image taken at the time of teleworker authentication as trail data together with information indicating "spoofing." An example of the stored data is the third row in FIG. 16.

As described above, the teleworker personal authentication result determined by the teleworker PC 111 is stored in the management server through the process shown in the flowchart of FIG. Furthermore, even if the teleworker's PC 111 determines that the user is "spoofing," the management server performs re-authentication to prevent inquiries from being sent to the teleworker's administrator one by one. This completes the explanation of the flowchart in FIG. 6, and returns to the explanation of the flowchart in FIG. 4.

In the flowchart of FIG. 4, after completing the series of processes from step S415 to step S418, in step S414, when an input to end telework is received from the teleworker (such as by pressing the [End work] button in FIGS. 10 to 12), the teleworker's The PC 111 shifts the process to the next step S419.

In step S419, the teleworker PC 111 logs out the account logged in in step S401. After that, the process transitions to step S420.

In step S420, the management server 101 performs processing to update favorite work conditions (combination of authentication face images) in the telework work conditions for which events were detected in steps S413 to S418. With reference to FIG. 7, the process of updating the authentication face image will be described.

FIG. 7 is a flowchart illustrating an example of the process of updating the facial image for authentication of favorite work conditions in the telework management support system according to the embodiment of the present invention.

The process shown in the flowchart of FIG. 7 is a process in which the CPU 201 of the management server 101 reads and executes a predetermined control program.

The flowchart in FIG. 7 is a process that is started when the process transitions to step S420 in FIG.

First, in step S701, the management server 101 determines whether the current telework working conditions are preferred working conditions (FIG. 14). If the current telework working conditions are preferred working conditions, the process advances to step S702. If the current telework work conditions are not the work conditions you like, this process ends. Whether or not it is a favorite working condition is determined by whether the teleworker specifies a favorite working condition on the screen of the teleworker PC 111 (specifically, favorite condition specification 801 in FIG. 8) in step S402 of the flowchart in FIG. .

When the process moves to step S702, the management server 101 performs a process of selecting an authentication face image according to the current work conditions. The details of this process are the same as the selection process explained with reference to FIG.

In the next step S703, the management server 101 determines whether the authentication facial image selected in step S702 matches the existing authentication facial image (data in FIG. 14) of the favorite work condition. If the facial image for authentication selected in step S702 matches an existing facial image for authentication in the favorite work condition, the process moves to step S705, and the facial image for authentication selected in step S702 matches the existing facial image for authentication in the favorite work condition. If there is a face image different from the existing authentication face image of the work condition, the process advances to step S704.

When the process transitions to step S704, the management server 101 performs a process to prepare for updating the authentication face image of the favorite work condition to the authentication face image selected in step S702, and ends the process of this flowchart. do. With reference to FIG. 15, a process for preparing to update the authentication face image will be described.

The first line in FIG. 15 is an example of a table that holds data for updating the authentication face image. In the authentication facial image list 1502 in the first row, a facial image ID 1701, which is the ID of the authentication facial image selected in the process of step S702, is registered. If the next teleworker designation is the same favorite work condition, the favorite work condition is updated to the authentication face image in the authentication face image list 1502 in step S408. Further, in order to remember that the authentication face image needs to be updated in the next setting, the authentication face image update necessity flag 1503 is set to "required". If the authentication face image update necessity flag 1503 is set to "required", it is determined in step S406 that it is necessary to update the favorite work conditions. Returning to the explanation of the flowchart in FIG. 7.

In FIG. 7, when the process transitions to step S705, the management server 101 performs a process for not updating the facial image for authentication of the favorite work condition, and ends the process of this flowchart. Processing when the authentication face image is not updated will be described with reference to FIG. 15.

The second and third lines in FIG. 15 are examples of the authentication face image information management table when the authentication face image is not updated. By registering "no" in the authentication face image update necessity flag 1503 in the second and third lines, it is indicated in step S406 that there is no need to update the favorite work conditions, and as a result, the process proceeds to step S407. Transition the process and do not update the authentication face image. As explained above, the authentication face image list 1502 of the authentication face image information management table 1500 and the authentication face image update necessity flag 1503 determine whether the next favorite You can set whether to update the facial image for authentication during work conditions.

Through the above processing, the processing load of the face recognition on the teleworker PC 111 can be reduced, and the facial recognition processing load of the teleworker PC 111 can be reduced by significantly selecting the face image for authentication based on the telework work conditions. The present invention solves the problem that a teleworker cannot use the teleworker PC 111 due to a mistake.

Although one embodiment has been described above, the present invention can be implemented as, for example, a system, an apparatus, a method, a program, a recording medium, or the like. Specifically, the present invention may be applied to a system consisting of a plurality of devices, or may be applied to a device consisting of a single device.

Further, the program in the present invention is a program that allows a computer to execute the processing methods shown in the flowcharts shown in FIGS. 4 to 7, and the storage medium of the present invention is a program that allows a computer to execute the processing methods shown in is memorized. Note that the program in the present invention may be a program for each processing method of each device shown in FIGS. 4 to 7.

As described above, a recording medium recording a program that implements the functions of the embodiments described above is supplied to a system or device, and the computer (or CPU or MPU) of the system or device reads the program stored in the recording medium. It goes without saying that the object of the present invention can also be achieved by reading and executing.

In this case, the program itself read from the recording medium will realize the novel function of the present invention, and the recording medium on which the program is recorded constitutes the present invention.

Examples of recording media for supplying programs include flexible disks, hard disks, optical disks, magneto-optical disks, CD-ROMs, CD-Rs, DVD-ROMs, magnetic tapes, non-volatile memory cards, ROMs, EEPROMs, and silicon A disk or the like can be used.

In addition, by executing a program read by a computer, not only the functions of the above-described embodiments are realized, but also the OS (operating system) etc. running on the computer are realized based on the instructions of the program. It goes without saying that this also includes a case where part or all of the processing is performed and the functions of the embodiments described above are realized by the processing.

Furthermore, after the program read from the recording medium is written into the memory of the function expansion board inserted into the computer or the function expansion unit connected to the computer, the function expansion board It goes without saying that this also includes a case where a CPU or the like provided in a function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

Moreover, the present invention may be applied to a system made up of a plurality of devices, or to a device made up of one device. It goes without saying that the present invention can also be applied to cases where the present invention is achieved by supplying a program to a system or device. In this case, by reading a recording medium storing a program for achieving the present invention into the system or device, the system or device can enjoy the effects of the present invention.

Further, by downloading and reading a program for achieving the present invention from a server, database, etc. on a network using a communication program, the system or device can enjoy the effects of the present invention. Note that all configurations that are combinations of the above-described embodiments and their modifications are also included in the present invention.

101 Management server 111 Teleworker PC
121 Administrator PC

Claims (16)

acquisition means for acquiring information regarding the orientation of the face when the face is photographed by the imaging means;
a setting means for setting conditions for authenticating a specific face from an image photographed by the imaging means according to information regarding the face orientation acquired by the acquisition means;
An information processing system comprising: a control means for performing control to authenticate a face included in an image photographed by the imaging means based on conditions set by the setting means. further comprising a first reception means for receiving input of information regarding the orientation of the face;
The information processing system according to claim 1, wherein the acquisition means acquires information received by the first reception means. 3. The information processing system according to claim 2, wherein the first receiving means receives an input of the ratio of the face orientation. 2. The information processing system according to claim 1, wherein the acquisition means acquires information regarding the face orientation from a ratio of face orientation in images photographed in the past by the imaging means. 5. The information processing system according to claim 1, wherein the information regarding the direction of the face changes depending on the position of a monitor viewed by the person to be photographed with respect to the imaging means. further comprising a second reception means for receiving input of information regarding the lighting environment when the face is photographed by the imaging means ,
The acquisition means acquires the information received by the second reception means ,
According to any one of claims 1 to 5, the setting means further sets conditions for authenticating the specific face according to information regarding the lighting environment acquired by the acquisition means. The information processing system described. 7. The setting means changes and sets, as the condition, a comparison target for authenticating a specific face from an image photographed by the imaging means. The information processing system described. 8. The setting means sets, as the condition, the authentication data selected from among the plurality of authentication data based on the information acquired by the acquisition means. The information processing system described in . 9. The information processing system according to claim 8 , wherein the authentication data is authentication face image data. The setting means sets the selected predetermined number of the authentication data as the condition,
If the specific face is not authenticated in the authentication processing conditioned on the predetermined number of the authentication data, the control means may use an authenticated image taken by the imaging means in the past as the authentication data. The information processing system according to claim 8 or 9 , wherein the information processing system is controlled to perform authentication of a specific face. The control means is configured to register first information depending on whether or not it has been authenticated that the specific face is present in the image photographed by the imaging means through authentication processing based on conditions set by the setting means. The information processing system according to any one of claims 1 to 10 , characterized in that the information processing system is controlled to. 12. The information processing system according to claim 11 , wherein the first information is information indicating leaving or sitting. The control means controls a second face according to whether or not it is detected that a face different from the specific face is present in the image photographed by the imaging means through authentication processing based on conditions set by the setting means. The information processing system according to any one of claims 1 to 10, characterized in that the information processing system is controlled to register information. The information processing system according to claim 13 , wherein the second information is information indicating at least one of peeping and spoofing. an acquisition step of acquiring information regarding the orientation of the face when the face is photographed by the imaging means;
a setting step of setting conditions for authenticating a specific face from an image photographed by the imaging means according to information regarding the face orientation acquired in the acquisition step;
A control method for an information processing system, comprising: a control step of performing control to authenticate a face included in an image photographed by the imaging means based on the conditions set in the setting step. A program for causing at least one computer to function as each means of the information processing system according to any one of claims 1 to 14 .

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