JP2023014522A - Information display system and information display method - Google Patents

Abstract

To provide appropriate information which suits each need to a person in specific space, so as to easily enter a visual field of the person himself/herself.SOLUTION: An information display system comprises an arithmetic device, a storage device, an imaging device, and a display device. The arithmetic device, by using an image photographed by the imaging device and data which the storage device has, detects a person in specific space, estimates the person's sight line, identifies an effective visual field region projected on an image-projected surface of the sight line, and discriminates between an overlapped effective visual field region which is a region where the effective visual field regions of multiple persons overlap, and an individual effective visual field region which is the effective visual field region and is a portion other than the overlapped effective visual field region, if the number of persons is multiple. The display device displays information on the overlapped effective visual field region and the individual effective visual field region.SELECTED DRAWING: Figure 4

Description

The present invention relates to an information display system and an information display method.

2. Description of the Related Art Conventionally, techniques for detecting a viewpoint (field of view) from the direction of a user's face and displaying information to be provided to the user have been developed.

Patent Document 1 describes a method of displaying a plurality of users who are gazing at a display surface in order to facilitate communication between users who have an affinity for different notation methods when working together. Determine whether or not multiple viewpoints exist in the first display area among the viewpoints on the user's display surface, and only when there are multiple viewpoints in the first display area, except for the first language a display control unit that determines, as a second language, a language that is compatible with a plurality of users who focus their eyes on the first display area; a notation conversion device for translating into translation text data, wherein the display control unit generates position information indicating the position of a second display area for displaying the translation text data, and converts the translation text data and A device for outputting information to a display unit is disclosed.

Japanese Patent Application Laid-Open No. 2020-3892

People who work in buildings such as office buildings and outsiders who visit buildings are desired to be able to obtain appropriate information in the buildings.

Specifically, when entering the building, when using the elevator, when holding a meeting in the meeting room in the building, etc. It is desirable to be able to receive appropriate information according to the needs of each individual so that the person can see the schedule of the room without any effort.

For example, when scheduling a meeting room, the end time of the meeting is announced to the people currently using the room before the end time so that the next person using the room can enter the room at the reserved time. It is desirable to be able to notify without disturbing the progress of Also, some of the participants in the conference may plan to participate in a conference held in another conference room immediately after the conference ends. In this case, it is desirable to be able to notify the person individually of the schedule for the next meeting.

The notation conversion device described in Patent Document 1 enables communication between users when a plurality of users who have an affinity for different notation methods work together. It has a configuration for displaying information related to each other in the first display area and the second display area. However, Patent Literature 1 does not disclose individually providing information with low relevance to a plurality of persons.

SUMMARY OF THE INVENTION An object of the present invention is to provide a person in a specific space with appropriate information that meets the needs of each person so that the person can see the person without much effort.

The present invention provides an information display system comprising an arithmetic device, a storage device, an imaging device, and a display device. Detects a person in a specific space, estimates the line of sight of that person, identifies the effective visual field area projected on the projection surface of the line of sight, and if there are multiple people, the effective visual field areas of multiple persons overlap. The display device distinguishes between the overlapping effective visual field area, which is the area where the is displayed.

According to the present invention, it is possible to provide a person in a specific space with appropriate information that meets the needs of each person so that the person can see the person without much effort.

1 is a block diagram showing a network configuration centering on an information display system according to a first embodiment; FIG. 2 is a block diagram showing the configuration of a reservation management server 1 of FIG. 1; FIG. 2 is a block diagram showing the configuration of a display server 2 in FIG. 1; FIG. 1 is a configuration diagram showing an example of an information display system in a conference space; FIG. FIG. 5 is a flow diagram showing an example of processing steps in a display program 122 of FIG. 3, which is a method of displaying information to conference participants of FIG. 4; FIG. 11 is a block diagram showing the configuration of an entry/exit management server according to the second embodiment; FIG. 5 is a schematic diagram showing an example of the state inside the elevator car according to the second embodiment; FIG. 8 is a flowchart showing an example of processing steps in a display program 122 of FIG. 3, which is a method of displaying information for elevator passengers of FIG. 7;

An information display system and an information display method according to an embodiment of the present disclosure will be collectively described.

An information display system includes an arithmetic device, a storage device, an imaging device, and a display device. The arithmetic device detects a person in a specific space using the image captured by the imaging device and the data held by the storage device, estimates the person's line of sight, and estimates the effective line of sight projected on the projection surface of the person. If the visual field area is specified and there are multiple people, the overlapping effective visual field area, which is the area where the effective visual field areas of multiple people overlap, and the individual effective visual field, which is the part of the effective visual field area other than the overlapping effective visual field area Determine the region and A display device displays information in the overlapping effective viewing area and the separate effective viewing area.

The computing device selects information common to a plurality of persons to be displayed in the overlapping effective visual field area, and selects information to be individually conveyed to be displayed in the individual effective visual field area.

The data held by the storage device include those relating to people. The computing device uses the data to identify the person.

The storage device has data for determining whether a person corresponds to an insider or an outsider.

If the person's effective visual field does not include an overlapping effective visual field, the computing device selects information to be conveyed individually to be displayed in the individual effective visual field.

When the person is moving, the display device adjusts the display position of the information so as to follow the movement of the person.

The particular space is a conference space, the storage device has reservation information for the conference space, and the computing device determines future schedules for the conference space based on the reservation information. Then, the display device displays the future schedule as information in the effective visual field area at a predetermined notification time.

The data held by the storage device includes scheduled event information of a person, and the computing device determines the scheduled event information. Then, the display device displays the scheduled event information as information in the individual effective visual field area at a predetermined notification time.

The information display method is a method of displaying information using a system that includes an arithmetic device, a storage device, an imaging device, and a display device. Then, the arithmetic device detects a person in a specific space using the image captured by the imaging device and the data held by the storage device, estimates the line of sight of the person, and projects the line of sight onto the projection plane. Identify the effective viewing area.

When there are multiple persons, the overlapping effective visual field area, which is an area where the effective visual field areas of multiple persons overlap, and the individual effective visual field area, which is the effective visual field area but other than the overlapping effective visual field area, are discriminated. . A display device then displays the information in the overlapping effective visual field areas and the individual effective visual field areas.

Embodiments according to the present disclosure will be described in detail with reference to the drawings.

[First embodiment]
FIG. 1 is a block diagram showing a network configuration centering on an information display system according to the first embodiment. As an example of the information display system, it is assumed that it relates to a conference space. In this example, the conference space corresponds to the "specific space".

In this figure, the information display system comprises a reservation management server 1 and a display server 2 . The reservation management server 1 and the display server 2 are connected to the terminal device 102a via the Internet 101. FIG. The reservation management server 1 and display server 2 are also connected to a plurality of terminal devices 102b, 102c, and 102d via the Internet 101, gateway 103, mobile communication network 104, and base station 105. FIG.

Here, the terminal device 102a is a computer for directly managing the reservation management server 1 and the display server 2, and has the authority to check all contents such as databases and programs of the reservation management server 1 and the display server 2. FIG. On the other hand, the terminal devices 102b, 102c, and 102d are not given all the authority, but are limitedly permitted to check the data etc. from the outside, and input/output them as necessary. is possible. A user of the display server 2 can communicate with the display server 2 via the Internet 101 using his/her own terminal device 102 . Various information terminal devices such as smartphones, tablets, and personal computers can be used as the terminal devices 102b, 102c, and 102d.

When the terminal devices 102b, 102c, and 102d are smartphones or the like, they communicate with the reservation management server 1 and the display server 2 via the base station 105 of the mobile communication network 104 connected to the Internet 101 via the gateway 103 . Of course, it is also possible to communicate with the reservation management server 1 and the display server 2 on the Internet 101 without going through the mobile communication network 104 . When the terminal devices 102b, 102c, and 102d are tablets or personal computers, they can communicate with the reservation management server 1 and the display server 2 on the Internet 101 without going through the mobile communication network 104. FIG. Of course, it is also possible to communicate with the reservation management server 1 and the display server 2 via the mobile communication network 104 using a wireless Wi-Fi (registered trademark) device.

In summary, the information display system shown in this figure is composed of one or more server devices connected to a network such as the Internet 101 or the like.

FIG. 2 is a block diagram showing the configuration of the reservation management server 1 of FIG. 1. As shown in FIG.

In this figure, the reservation management server 1 includes a CPU 11 (Central Processing Unit), a RAM 12 (Random Access Memory) that serves as a work area for the CPU 11, and a ROM 13 (Read Only Memory) that stores BIOS (Basic Input Output System) and the like. , and a non-volatile storage device 14 such as an SSD (Solid State Drive) or HDD (Hard Disk Drive) that stores various data.

The CPU 11 has a function of performing various calculations and centrally controlling each section. A RAM 12 , a ROM 13 , and a nonvolatile storage device 14 are connected to the CPU 11 .

The reservation management server 1 includes a communication control device 15 for communicating with the Internet 101 (FIG. 1) and the like, a storage medium reading device 17 for reading data from a storage medium 16 such as a USB (Universal Serial Bus), a keyboard and a mouse. etc., and a display device 19 such as a liquid crystal display or an organic EL display. These components are also connected to the CPU 11 .

A reservation management program 20 for managing conference space reservations and a schedule management program 21 for managing people's schedules are set up in the non-volatile storage device 14 . The non-volatile storage device 14 also includes a conference reservation database 23 for storing conference space reservations, conference participants, advance notification times, notification information, and the like, and a user schedule database 23 for storing user schedules such as conference participants. a database 24;

The reservation management program 20 and the schedule management program 21 may be downloaded from the Internet 101 or the like and set up in the non-volatile storage device 14, or may be read from the storage medium 16 by a storage medium reader 17 and stored in the non-volatile storage device 14. can be set up to

The conference reservation database 23 and the user schedule database 24 acquire data from the terminal devices 102a, 102b, 102c, 102d, etc. shown in FIG. Various reservation information, schedule information, etc. in the conference reservation database 23 and user schedule database 24 of the reservation management server 1 are recorded using the user's terminal device 102 or the like in which an application for access or a dedicated module is installed.・Change or delete. For example, the registered information in the conference reservation database 23 includes the start and end times of the conference, the name of the participants, the name of the conference, and the notification time for notifying the end in advance. The registered information in the user schedule database 24 includes event names, event start and end times, and the like.

In FIG. 2, for the sake of convenience, the reservation management server 1 is shown as a single server device, but the reservation management server 1 may be a plurality of server devices on the Internet 101 that operate in cooperation with each other. In that case, even if the reservation management program 20, the schedule management program 21, the conference reservation database 23, and the user schedule database 24 shown in FIG. good. In this case, the reservation management program 20 and the schedule management program 21 can be said to be an aggregate of program groups. Moreover, the storage medium 16 may also be arranged in a distributed manner in storage media possessed by each server device. In this case, the storage medium 16 can also be said to be an aggregate of storage medium groups.

FIG. 3 is a block diagram showing the configuration of the display server 2 in FIG. 1. As shown in FIG.

In this figure, the display server 2 includes a CPU 111, a RAM 112 serving as a work area for the CPU 111, a non-volatile storage device 113 composed of a semiconductor storage device, a magnetic storage device, or the like for storing various data, and communicating with the Internet 101 and the like. and a storage medium reader 115 for reading data from the storage medium 16 .

The CPU 111 has a function of performing various calculations and centrally controlling each part. A RAM 112 , a nonvolatile storage device 113 , a communication control device 114 , and a storage medium reading device 115 are connected to the CPU 111 . The display server 2 is also connected to a display device 117 such as a projector or a liquid crystal display, and an imaging device 116 such as a camera that acquires an image of the conference space. The display device 117 and imaging device 116 are connected to the CPU 111 . A speaker and a microphone may be connected to the CPU 111 .

An image analysis program 120 and a display program 122 are set up in the non-volatile storage device 113 to detect people from images of a conference space or the like, calculate line of sight and effective visual field area, and identify the detected people. ing. The nonvolatile storage device 113 also has a user face database 121 that stores face photographs of people who use this service, which serve as reference data when the image analysis program 120 identifies people.

The display device 117 may be installed in the conference space to display the information transmitted at the notification time. The display device 117 may be a projection type such as a projector, or a fixed monitor type installed on a wall surface or the like. It is desirable for the projector to be able to change the projection range on the wall surface.

(Processing of display program)
Next, specific processing of the display program will be described with reference to FIGS. 4 and 5. FIG.

FIG. 4 is a configuration diagram showing an example of an information display system in a conference space.

A conference table 131, a monitor 132, an imaging device 116 and a display device 117 connected to the display server 2 are installed in the conference space 130 shown in the figure. A plurality of imaging devices 116 and display devices 117 may be installed in the conference space 130 . Also, the display server 2 may not be installed in the conference space 130, and may be installed in the same building, in another building, or in a remote building.

Conference participants P 1 , P 2 , P 3 , and P 4 are using monitors 132 to hold a conference. Conference participants P1, P2, P3, and P4 are looking in directions of lines of sight L1, L2, L3, and L4, respectively. The effective visual field of the line of sight L1, L2, L3, L4 of each of the conference participants P1, P2, P3, P4 is projected onto the wall surface. The projected effective visual field area A partially overlaps the effective visual field area A of another person. The overlapping effective visual field area A on the wall surface is the overlapping effective visual field area I1. On the other hand, non-overlapping areas A are individual effective visual field areas I2, I3, I4, and I5. In this specification, the effective visual field area A is also called an "effective visual field area". Also, the wall surface on which the effective visual field of the line of sight is projected is called a "projection surface".

FIG. 5 is a flowchart showing an example of processing steps in the display program 122 of FIG. 3, which is a method of displaying information to conference participants of FIG.

5, the display program 122 stored in the non-volatile storage device 113 of the display server 2 shown in FIG. , and obtains the data of the conference reservation database 23 and the user schedule database 24 among the data accumulated in the reservation management server 1 . From the conference reservation database 23, the conference participants, the time to be notified in advance, and information to be notified are acquired, and from the user schedule database 24, the schedule of the conference participants is acquired.

In FIG. 5, it is determined from the obtained conference reservation database 23 whether or not the target conference space 130 is currently having a conference (step S100).

When the target conference space 130 is in the middle of a conference, the current time is notified in advance in the schedule of the conference space 130 and the conference participants using the obtained conference reservation database 23 and the user schedule database 24 of the conference participants. It is determined whether the time has passed and the end time has not passed (step S101). Here, the notification time to be notified in advance refers to "a time obtained by adding extra time to the start time of the next scheduled event". , such as "10 minutes before the start of the next scheduled event".

In the schedule of the target conference space 130 and the conference participants P1, P2, P3, and P4, when the notification time has passed, the imaging device 116 installed in the conference space 130 captures the inside of the conference space 130. image data is generated, and the generated image data is written in the non-volatile storage device 113 (step S102).

The image analysis program 120 acquires image data from the non-volatile storage device 113 and analyzes the image of the conference space 130 based on the results of learning using facial photographs of users registered in the user face database 121 in advance. to determine whether or not there is a person in the conference space 130 (step S103). If a person exists in the conference space 130, the person is further identified (step S104).

Next, the line of sight L1, L2, L3, and L4 of each identified person is extracted using the posture and head orientation that can be determined from the image data of each person (step S105). The range in which information can be effectively obtained within the visual field of a person's line of sight is called the effective visual field, and ranges from approximately 4 degrees to 20 degrees. Therefore, the areas of the line of sight L1, L2, L3, and L4 of each person (area A of the effective visual field) are set as recognizable screen areas (step S106).

If the effective visual field areas A of multiple people overlap, divide the area A into the overlapping effective visual field area I1 and the individual effective visual field areas I2, I3, I4, and I5 that are non-overlapping areas ( step S107).

If there is an overlapping effective visual field area I1, it is further determined whether or not there are matters to be notified individually by persons in the conference space 130 (step S108). On the other hand, if there are no matters to be individually notified, the notification information of the conference space 130, for example, "Please prepare for the end of the conference because it is 10 minutes before the end of the conference." It is displayed on the display device 117 (step S109).

On the other hand, data to be displayed as notification information of the conference space 130 in the overlapped effective field of view area I1 for items to be individually notified by persons present in the conference space 130, for example, when the next conference of the conference participant P1 starts in 10 minutes data to be displayed as items to be individually notified in individual effective visual field areas I2, I3, I4, and I5, which are areas A of the effective visual field of the person to be individually notified and do not overlap with other people is created and displayed on the display device 117 (step S110).

Next, if there is no overlapping effective field of view area I1, the presence or absence of matters to be individually notified is determined by persons in the conference space 130 (step S111). If there are no matters to be individually notified among the people in the conference space 130, data to be displayed as matters to be notified in the conference space 130 is created in the area A of everyone's effective field of view and displayed on the display device 117 (step S112). ).

On the other hand, if there are matters to be notified individually, data to be displayed as information to be notified individually is created in the area A of the effective field of view of the individual, and this is displayed on the display device 117 (step S113).

As for the timing of display, it may be displayed only once in a short period of time after the notification time has passed, or may be displayed in a pattern such as increasing the display frequency as the end time approaches.

In the above description, the conference space is taken as an example, but it may be a limited outdoor space.

Further, in the present embodiment, face image data is used to identify a person, but sensor data such as an RF tag carried by each person may be used for identification.

According to this embodiment, it is possible to provide appropriate information that meets the needs of each person in a meeting space, which is a specific space, so that the person can see it without much effort. . In addition, among the participants of the conference, it is possible to notify that the end of the conference is approaching near the part where a specific participant is watching. It can be made to recognize accurately that it is near. Further, information can be selectively and efficiently conveyed to each of the conference participants without interrupting the conversation of the conference participants.

[Second embodiment]
Next, as a second embodiment, a case of application to a space around the inside of an elevator car will be described. In this example, the inside of the elevator car corresponds to the "specific space".

In this embodiment, the information display system for displaying information in the elevator car has a configuration in which an entry/exit management server and an elevator system are connected to the Internet 101 instead of the reservation management server 1 shown in FIG. not shown).

FIG. 6 is a block diagram showing the configuration of an entry/exit management server according to this embodiment.

In this figure, the room entry/exit management server 3 includes a CPU 211 , a RAM 212 , a nonvolatile storage device 213 for storing various data, a communication control device 214 , and a storage medium reader 215 . Furthermore, the entrance/exit management server 3 includes a reception terminal 217 that receives visitors, a security gate 216 that controls entry and exit of visitors, and the like. In the non-volatile storage device 213, an entrance/exit control program 218 is set up for controlling entrance/exit from the building. The non-volatile storage device 14 also stores an employee database 219 and a visitor database 220 that are used by an entry/exit management program 218 to determine and manage entry/exit.

All visitors receive an employee ID (identification) card, a visitor number, and the like from the reception terminal 217 . The reception terminal 217 also acquires the visitor's face image. The visitor's face image is added to the user face database 121 (FIG. 3) of the display server 2 . The entry/exit management program 218 collates the visitor information with the employee database 219 and the visitor database 220 . A visitor who is permitted by the verification unlocks the security gate 216 so that it can pass through.

FIG. 7 is a schematic diagram showing an example of the state inside the elevator car according to the present embodiment.

In this figure, elevator passengers P5, P6, and G1 all go through a security gate 216 after receiving at a reception terminal 217 installed in an elevator hall, and then enter an elevator car 140.

Elevator passengers P5, P6, and G1 are looking in directions of lines of sight L5, L6, and L7, respectively. The effective visual fields of the lines of sight L5, L6, L7 of the elevator occupants P5, P6, G1, respectively, are projected onto the wall surface. The projected effective visual field area A partially overlaps the effective visual field area A of another person. The overlapping effective visual field area A on the wall surface is the overlapping effective visual field area I12. On the other hand, non-overlapping areas A are individual effective visual field areas I10, I11, and I13. Elevator passengers P5 and P6 are employees in the building, and elevator passenger G1 is a visitor from the outside.

Inside the elevator car 140 are an entrance door 141, a ceiling 142, side walls 143, an entrance edge wall 144, a floor 145, an operation panel 146, and the like. An imaging device 232 for imaging a passenger is fixed to the side wall 143 . A display device 233 is installed on the ceiling 142 to display information on an arbitrary wall surface in the car. The imaging device 232 and display device 233 are connected to the elevator system 4 . Elevator system 4 is a component of an information display system. Note that the display device 233 is not limited to a projection type device such as a projector, and may have a structure in which an LED (light emitted diode) monitor is embedded in the entrance door 141, the side wall 143, etc. of the elevator car 140. .

FIG. 8 is a flow chart showing an example of processing steps in the display program 122 of FIG. 3, which is the information display method for elevator passengers of FIG.

The display server 2 periodically acquires state data of the elevator car 140 from the elevator system 4 via the communication control device 114, and detects the open/closed state of the entrance door 141 of the elevator car 140 (step S200).

When the entrance door 141 is closed, the imaging device 232 installed in the elevator car 140 takes an image of the inside of the elevator car 140 to generate image data. The generated image data is written to the nonvolatile storage device 213 (step S201).

The image analysis program 120 acquires image data from the non-volatile storage device 213, and based on the results of learning using facial photographs of users registered in advance in the user face database 121, determines the number of people in the elevator car 140. The presence or absence is determined (step S202). If there is a person in the elevator car 140, the person is further identified (step S203).

Next, using the image data of the identified person, the line of sight L5, L6, and L7 of each person is extracted from the identifiable posture, head orientation, and the like (step S204). Further, an effective visual field area A corresponding to each person's line of sight L5, L6, and L7 is set (step S205).

It is determined whether or not the effective visual field areas A of a plurality of persons overlap, and if they overlap, an overlapping effective visual field area I12 is set. On the other hand, if they do not overlap, individual effective visual field areas I10, I11, and I13 are set (step S206).

If the area A overlaps, it is determined whether there is an item to be individually notified to the person in the elevator car 140 (step S207). If there is no item to notify individually, extract information common to the elevator passengers P6 and G1 (duplicate persons) who direct their lines of sight L6 and L7 to the overlapping effective visual field area I12 (for example, the service contents of the cafeteria in the building). Then, data to be displayed on the display device 233 is created and transmitted to the display device 233 (step S208).

On the other hand, if there is a matter to be individually notified to a person in the elevator car 140, for example, if it is an elevator passenger G1 (visitor), a guide map after arriving at the destination floor is displayed on the elevator Data to be displayed in the individual effective visual field area I10 of the passenger G1 (visitor) is created and transmitted to the display device 233 (step S209).

Also, as in step S208, data to be displayed in the overlapping effective visual field area I12 as information common to the overlapping persons is created and transmitted to the display device 233. FIG.

If there is no overlapping area A in step S206, message data for displaying conference room information and individual information within the effective field of view of all elevator passengers P5, P6, and G1 in elevator car 140 is created and displayed on display device 233. Send (step S210).

According to the present embodiment, it is possible to provide appropriate information that meets the needs of each individual person in the elevator car, which is a specific space, so that the person can easily see the person's field of view. can.

In addition, the "specific space" includes the elevator hall, the vicinity of the entrance authentication machine, and the like. It can also be applied to a moving person (for example, a person walking in a hallway), and can display general information and individual information tailored to the person's situation in the effective field of view corresponding to the line of sight of the moving person. may be displayed. When targeting a moving person, a predetermined range around the moving person corresponds to the "specific space". Further, in this case, since the effective field of view changes, the display device is controlled so as to follow this change in display. In other words, the display device adjusts the display position of the information so as to follow the movement of the moving person.

1: reservation management server, 2: display server, 3: entrance/exit management server, 4: elevator system, 11, 111, 211: CPU, 12, 112, 212: RAM, 13: ROM, 14, 113, 213: non-volatile 15, 114, 214: communication control device, 16: storage medium, 17, 115, 215: storage medium reader, 18: input device, 19, 117, 233: display device, 101: Internet, 102 : terminal device, 103: gateway, 104: mobile communication network, 105: base station, 116, 232: imaging device, 120: image analysis program, 121: user face database, 122: display program, 130: conference space, 131 140: Elevator car 141: Entrance door 142: Ceiling 143: Side wall 144: Entrance edge wall 145: Floor 146: Operation panel 216: Security gate 217 : reception terminal, L1, L2, L3, L4: line of sight, A: effective visual field area, I1: overlapping effective visual field area, I2, I3, I4, I5: individual effective visual field area, P1, P2, P3, P4: conference Participants, P5, P6, G1: Elevator passengers.

Claims (15)

In an information display system comprising an arithmetic device, a storage device, an imaging device, and a display device,
The computing device is
Detecting a person in a specific space using the image captured by the imaging device and the data stored in the storage device,
estimating the line of sight of said person;
Identifying an effective visual field area projected onto the projection plane of the line of sight;
When the person is a plurality of people, an overlapping effective visual field area that is an area where the effective visual field areas of the plurality of people overlap, and an individual effective visual field area that is a part of the effective visual field area other than the overlapping effective visual field area and
The information display system, wherein the display device displays information in the overlapping effective visual field area and the individual effective visual field area. The computing device is
selecting information common to the plurality of persons to be displayed in the overlapping effective field of view;
2. The information display system according to claim 1, wherein information to be individually conveyed to be displayed in said individual effective visual field area is selected. the data held by the storage device includes data relating to the person;
2. The information display system of claim 1, wherein said computing device uses said data to identify said person. 2. The information display system according to claim 1, wherein said storage device has data for determining whether said person corresponds to an insider or an outsider. if the effective viewing area of the person does not include the overlapping effective viewing area,
2. The information display system according to claim 1, wherein said arithmetic unit selects information to be individually conveyed to be displayed in said individual effective visual field area. if said person is moving,
2. The information display system according to claim 1, wherein said display device adjusts the display position of said information so as to follow the movement of said person. the specific space is a conference space;
The storage device
Having reservation information for the conference space;
The computing device determines a future schedule of the conference space based on the reservation information,
2. The information display system according to claim 1, wherein said display device displays said future schedule as said information in said effective visual field area at a predetermined notification time. the data held by the storage device includes scheduled event information of the person;
The computing device determines the scheduled event information,
2. The information display system according to claim 1, wherein said display device displays said scheduled event information as said information in said individual effective visual field area at a predetermined notification time. A method of displaying information using a system comprising an arithmetic device, a storage device, an imaging device, and a display device,
The computing device
Detecting a person in a specific space using the image captured by the imaging device and the data stored in the storage device,
estimating the line of sight of said person;
Identifying an effective visual field area projected onto the projection plane of the line of sight;
When the person is a plurality of people, an overlapping effective visual field area that is an area where the effective visual field areas of the plurality of people overlap, and an individual effective visual field area that is a part of the effective visual field area other than the overlapping effective visual field area and
An information display method, wherein the display device displays the information in the overlapping effective visual field area and the individual effective visual field area. The computing device
selecting information common to the plurality of persons to be displayed in the overlapping effective field of view;
10. The information display method according to claim 9, wherein information to be individually conveyed to be displayed in said individual effective visual field area is selected. the data held by the storage device includes data relating to the person;
10. The information display method according to claim 9, wherein said computing device uses said data to identify said person. if the effective viewing area of the person does not include the overlapping effective viewing area,
10. The information display method according to claim 9, wherein said arithmetic unit selects information to be individually conveyed to be displayed in said individual effective visual field area. if said person is moving,
10. The information display method according to claim 9, wherein the display device adjusts the display position of the information so as to follow the movement of the person. the specific space is a conference space;
The storage device has reservation information for the conference space,
The computing device determines a future schedule of the conference space based on the reservation information;
10. The information display method according to claim 9, wherein said display device displays said future schedule as said information in said effective visual field area at a predetermined notification time. the data held by the storage device includes scheduled event information of the person;
The computing device determines the scheduled event information,
10. The information display method according to claim 9, wherein said display device displays said scheduled event information as said information in said individual effective visual field area at a predetermined notification time.

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