JP2019135600A - Display control device, display control method, and program - Google Patents

Abstract

To allow a display device to accurately display things thereon in accordance with a viewpoint location.SOLUTION: A control device 6 comprises: a gaze information acquisition unit 142 configured to acquire gaze information representing a gaze direction of a user (U); a head information acquisition unit 143 configured to acquire head information representing an orientation of the head of the user (U); a viewpoint location estimation unit 144 configured to estimate a viewpoint location of the user (U) on a display device 2 using the acquired gaze information and head information; and a display control unit 145 configured to control display of the display device 2 according to the estimated viewpoint location.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a display control device, a display control method, and a program.

  In recent years, a technique has been proposed in which a user can perform an input operation of a personal computer without using a hand. For example, Patent Document 1 below discloses a technique for operating a display such as a cursor on a display device based on a viewpoint position estimated from a user's eyeball position using a CCD sensor.

JP 200023065 A

  However, when the viewpoint position of the user with respect to the display device is estimated only from the eyeball position, since the estimation accuracy of the viewpoint position is low, display on the display device corresponding to the viewpoint position cannot be performed with high accuracy.

  Accordingly, the present invention has been made in view of these points, and an object thereof is to perform display on a display device corresponding to a viewpoint position with high accuracy.

  In the first aspect of the present invention, a line-of-sight information acquisition unit that acquires line-of-sight information indicating the direction of the user's line of sight, a head information acquisition unit that acquires head information indicating the direction of the user's head, Based on the acquired line-of-sight information and head information, a viewpoint position estimation unit that estimates the viewpoint position of the user with respect to the display apparatus, and controls display of the display apparatus based on the estimated viewpoint position And a display control unit.

  The display control unit may display additional information superimposed on the display screen of the display device when the viewpoint position is estimated to be located within a predetermined area of the display device.

  The display control unit may hide the additional information when the viewpoint position is estimated to have moved from the predetermined area to the outside of the predetermined area.

  In addition, the display control unit may display information related to display contents displayed at the viewpoint position as the additional information.

  The display control device may further include a region setting unit that sets the predetermined region in a region outside a predetermined range from the center of the display screen.

  The display control device may further include an area setting unit that sets the predetermined area in a corner area of the display screen.

  Further, the area setting unit may change at least one of the position and the size of the predetermined area according to the display content of the display device.

  The display control unit may display a mark at a predetermined position of the display device, and the region setting unit may set the predetermined region according to the mark visually recognized by the user.

  The area setting unit may set the predetermined area according to a distance between the display device and the user and a size of the display device.

  The area setting unit may set the predetermined area according to the installation position for each of the plurality of display devices installed at different installation positions.

  The line-of-sight information acquisition unit acquires the line-of-sight information from an electrooculometer that detects the electrooculogram of the user, and the head information acquisition unit includes a six-axis sensor that detects the movement of the head. The head information may be acquired.

  The line-of-sight information acquisition unit acquires the line-of-sight information from the electrooculometer provided in a head-mounted device mounted on the head of the user, and the head information acquisition unit The head information may be acquired from the 6-axis sensor provided in the wearing device.

  In the second aspect of the present invention, the step of acquiring line-of-sight information indicating the direction of the user's line of sight, the step of acquiring head information indicating the direction of the user's head, the acquired line-of-sight information, and A display control method comprising: estimating a viewpoint position of the user with respect to a display device based on the head information; and controlling a display of the display device based on the estimated viewpoint position. provide.

  In the third aspect of the present invention, the step of acquiring line-of-sight information indicating the direction of the user's line of sight in the computer, the step of acquiring head information indicating the direction of the head of the user, and the acquired In order to execute the step of estimating the viewpoint position of the user with respect to the display device based on the line-of-sight information and the head information, and the step of controlling the display of the display device based on the estimated viewpoint position Provide a program.

  According to the present invention, there is an effect that display on a display device corresponding to a viewpoint position can be performed with high accuracy.

It is a schematic diagram for demonstrating the structure of the display system S which concerns on one Embodiment of this invention. 4 is a schematic diagram illustrating an example of a display screen of the display device 2. FIG. It is a schematic diagram for demonstrating the direction of a user's U head and eyes | visual_axis. It is a schematic diagram which shows the example of a display of the display apparatus 2 when the user U exists in the state shown to Fig.3 (a). 3 is a block diagram for explaining a detailed configuration of a control device 6. FIG. It is a schematic diagram for demonstrating a setting area | region. 4 is a schematic diagram for explaining an example of a setting screen displayed on the display device 2; FIG. It is a schematic diagram for demonstrating the setting of the setting area | region of several display apparatus 2A, 2B. It is a flowchart for demonstrating the flow of the display process of the display apparatus 2 according to a user's viewpoint position.

<Outline of display system>
An overview of a display system according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a schematic diagram for explaining a configuration of a display system S according to an embodiment. FIG. 2 is a schematic diagram illustrating an example of a display screen of the display device 2.
As shown in FIG. 1, the display system S includes a display device 2, a head-mounted device 4, and a control device 6. The display system S controls the display of the display device 2 according to the viewpoint position with respect to the display device 2 of the user U wearing the head-mounted device 4.

  The display device 2 displays a screen or the like as shown in FIG. 2 under the control of the control device 6. For example, the display device 2 displays a game screen. The display device 2 is, for example, a stationary display, and is installed at a position away from the user U as shown in FIG.

  The head-mounted device 4 is a device mounted on the head of the user U, and here is glasses as an example as shown in FIG. For this reason, the head mounted device 4 rotates in conjunction with the rotation of the user U's head. The head-mounted device 4 includes a line-of-sight detection sensor (an electrooculometer described below) that detects the direction of the line of sight of the user U and a head detection sensor (a 6-axis sensor described below) that detects the direction of the head of the user U. And are provided.

  The user U changes the direction of the head relative to the body axis or changes the direction of the line of sight in order to see the gaze point. In FIG. 1, the user U is facing the display screen of the display device 2. That is, the user U's head and line-of-sight are in the same direction and face the display screen of the display device 2.

  FIG. 3 is a schematic diagram for explaining the user U's head and the direction of the line of sight. FIG. 3A shows a state in which the user U changes the direction of the head from the state shown in FIG. 1 around the body axis C to the right to observe the edge of the display device 2. Has been. In FIG. 3A, the direction of the line of sight is the same as the direction of the head. For example, when viewing the display device 2, the user U gazes as shown in FIG. 3A when he / she wants to superimpose and display information related to display contents. FIG. 3B shows a state in which the user U whose head is directed diagonally to the right changes the direction of the line of sight and is directed toward the center of the display device 2. That is, the direction of the line of sight is different from the direction of the head.

  The control device 6 is a display control device that controls the display of the display device 2. The control device 6 is provided in a personal computer connected to the display device 2, for example. The control device 6 can communicate with the head-mounted device 4 (for example, short-range wireless communication), and transmits and receives various information. The control device 6 includes a line-of-sight detection sensor of the head-mounted device 4 and a communication unit that receives detection results of the head detection sensor. The control device 6 also has a function of associating which position of the display device 2 has the viewpoint position of the user U based on the output values of the line-of-sight detection sensor and the head detection sensor.

  As will be described in detail later, the control device 6 acquires line-of-sight information indicating the direction of the line of sight of the user U looking at the display device 2 and head information indicating the direction of the head of the user U, and displays the display device. 2 is estimated. By estimating the viewpoint position based on the line-of-sight information and the head information in this way, even if the orientation of the head and the line of sight changes as shown in FIGS. Compared with the case where the viewpoint position is estimated based on the information, the viewpoint position of the user with respect to the display device 2 can be estimated with high accuracy.

  Moreover, the control apparatus 6 controls the display of the display apparatus 2 based on the estimated viewpoint position. For example, when it is estimated that the viewpoint position of the user U is looking at the display device 2 as shown in FIG. 1, the control device 6 displays a screen as shown in FIG. On the other hand, when it is estimated that the viewpoint position of the user U is looking at the display device 2 as shown in FIG. 3A, the control device 6 displays a screen as shown in FIG.

FIG. 4 is a schematic diagram illustrating a display example of the display device 2 when the user U is in the state illustrated in FIG. In FIG. 4, unlike FIG. 2, the additional information I is displayed superimposed on the display screen 2 a of the display device 2. The display position of the additional information I is the direction in which the head and the line of sight are facing. Thereby, since the additional information I exists ahead of the line of sight, the user U can easily grasp the additional information I.
On the other hand, when the user U is in the state shown in FIG. 3B (the head is facing the edge of the display device 2 but the line of sight is facing the center of the display device 2), the display device 2 displays the display screen as shown in FIG. 2 without displaying the additional information I. The additional information I “80/100” indicates the parameter of the character G1 (dog) on the game screen shown on the display screen 2a. Thereby, when the user U who is looking at the display device 2 changes the viewpoint position in order to display additional information, the display can be appropriately switched.

<Detailed configuration of control device>
A detailed configuration of the control device 6 will be described with reference to FIG.

  FIG. 5 is a block diagram for explaining a detailed configuration of the control device 6. As illustrated in FIG. 5, the control device 6 includes a storage unit 12 and a control unit 14.

  The storage unit 12 includes a nonvolatile memory (for example, ROM) and a volatile memory (for example, RAM). The storage unit 12 stores programs executed by the control unit 14 and various data.

  The control unit 14 is a CPU, for example. The control unit 14 controls the display of the display device 2 by executing a program stored in the storage unit 12. As illustrated in FIG. 5, the control unit 14 includes a line-of-sight information acquisition unit 142, a head information acquisition unit 143, a viewpoint position estimation unit 144, a display control unit 145, and a region setting unit 146.

  The line-of-sight information acquisition unit 142 acquires line-of-sight information indicating the direction of the user's line of sight. For example, the line-of-sight information acquisition unit 142 acquires line-of-sight information from the electrooculometer 42 provided in the head-mounted device 4 mounted on the user's head. Specifically, the line-of-sight information acquisition unit 142 receives information about the electrooculogram detected by the electrooculometer 42 via the communication interface, and acquires line-of-sight information based on the information. The line-of-sight information acquisition unit 142 outputs the acquired line-of-sight information to the viewpoint position estimation unit 144.

  The electrooculometer 42 is a sensor that detects, for example, a user's eye movement or blink by obtaining the user's electrooculogram, and is used for detecting the line of sight. Here, the ocular potential refers to a potential difference generated between the cornea side and the retina side of the user's eyeball. It is known that when the potential difference is measured by attaching electrodes to the skin around the eyes, the potential difference changes depending on eye movement or blinking. The electrooculometer 42 is provided, for example, on a nose pad of glasses that is the head-mounted device 4.

  The head information acquisition unit 143 acquires head information indicating the orientation of the user's head. For example, the head information acquisition unit 143 acquires head information from the 6-axis sensor 44 provided in the head-mounted device 4 mounted on the user's head. Specifically, the head information acquisition unit 143 receives the detection result of the 6-axis sensor 44 via the communication interface, and acquires head information based on the detection result. The head information acquisition unit 143 outputs the acquired head information to the viewpoint position estimation unit 144.

  The 6-axis sensor 44 is a sensor that detects the speed of movement and rotation, and is used to detect the movement of the head located on the user's body axis. The six-axis sensor 44 includes, for example, an acceleration sensor that measures acceleration in the directions of three axes (X axis, Y axis, and Z axis) and a gyro sensor that measures angular velocity (rotation speed) around the three axes. Thereby, the change of a user's body axis can be detected with high accuracy. The 6-axis sensor 44 is provided, for example, on a frame of glasses.

  The viewpoint position estimation unit 144 estimates the viewpoint position of the user with respect to the display device 2 based on the line-of-sight information and the head information. Specifically, the viewpoint position estimation unit 144 estimates the viewpoint position of the user with respect to the display device 2 based on the line-of-sight information acquired by the line-of-sight information acquisition unit 142 and the head information acquired by the head information acquisition unit 143. To do. The viewpoint position estimation unit 144 outputs the viewpoint position estimation result to the display control unit 145.

  As described above, the viewpoint position can be estimated with high accuracy by detecting the direction of the line of sight using the electrooculometer 42 and detecting the direction of the head using the six-axis sensor 44. For example, if the direction in which the head is facing is different from the direction in which the line of sight is directed, a false detection may occur if the viewpoint position is detected only by the direction of the line of sight. By detecting both of the orientations, the viewpoint position can be estimated with high accuracy.

  The viewpoint position estimation unit 144 determines a state in which the orientation of the head and the line of sight is changed with the user state illustrated in FIG. 1 as an initial state. The initial state is set, for example, when the state of the user's head and line of sight has passed for a certain period of time. However, the present invention is not limited to this. For example, it may be set when blinking is performed three or more times continuously. The initial state may be set using other devices such as a camera and a compass.

  Further, the viewpoint position estimation unit 144 estimates whether or not the viewpoint position of the user is located within a setting area that is a predetermined area of the display device 2. The setting area is an area for displaying the additional information I on the display screen 2a, for example, by intentionally positioning the viewpoint when the user is viewing the display device 2.

  FIG. 6 is a schematic diagram for explaining the setting area. The setting area is an area R (area hatched in FIG. 6) outside the predetermined range from the center of the display screen 2a of the display device 2. For example, as shown in FIG. 6, the setting area R is an area formed in a ring shape with a predetermined width along the edge 2 b of the display screen 2 a. The outer edge of the setting area R is substantially the same position as the edge 2b of the display screen 2a, and the inner edge of the setting area R is a rectangular outline that connects four points R1 to R4. The setting region R is formed so as to include the four corners of the display screen 2a.

  The display control unit 145 controls display on the display device 2. The display control unit 145 controls the display of the display device 2 based on the viewpoint position with respect to the display device 2 that the user is viewing. Specifically, the display control unit 145 displays the display device 2 when the viewpoint position estimated by the viewpoint position estimation unit 144 is located within the setting area R, and when the viewpoint position is located outside the setting area R. This is different from the display of the display device 2.

  When it is estimated that the viewpoint position is located within the setting region R of the display device 2 (for example, when the viewpoint position is located at the position P2 as shown in FIG. 6), the display control unit 145 displays FIG. ), The additional information I is superimposed on the display screen 2a of the display device 2 and displayed. For example, when the user wants to display a menu related to operations, detailed information related to display contents, or the like on the display screen 2a, when the viewpoint position is positioned within the setting region R, the display control unit 145 displays these on the display screen 2a. Display information. Thereby, the user can display the additional information I on the display screen 2a by moving the line of sight to the end of the display screen 2a.

  On the other hand, if it is estimated that the viewpoint position is not located within the setting area of the display device 2 (for example, the viewpoint position is located at the position P1 shown in FIG. 6), the display control unit 145 As shown in FIG. 2, normal display is performed in which the additional information I is not displayed on the display screen 2a.

  When it is estimated that the viewpoint position has moved from the setting area R to the outside of the setting area R, the display control unit 145 hides the additional information I. For example, when the user moves the viewpoint position from the position P2 shown in FIG. 6 to the position P1, the display control unit 145 hides the additional information I. As a result, the user can easily switch between displaying and not displaying the additional information I on the display screen 2a only by changing the viewpoint position.

  The display and non-display of the additional information I is effective when the display device 2 is displaying a game screen, for example. For example, when it is desired to display information related to the progress of the game, the viewpoint position is located in the setting region R (for example, the position P2), so that the convenience when playing the game is enhanced. On the other hand, when a scene such as a movie is desired to be displayed on the screen, the user can feel a high level of immersion by positioning the viewpoint position outside the setting region R.

  The display control unit 145 may display, as the additional information I, information related to display content displayed at the viewpoint position, for example. For example, when the viewpoint position is located on a character (for example, the character G1 shown in FIG. 4) on the display screen, the display control unit 145 displays detailed information regarding the character G1.

  The region setting unit 146 sets a setting region R that is a region where the viewpoint position is located in order to display the additional information I on the display screen 2a described above. For example, the region setting unit 146 sets the setting region R in a region outside the predetermined range from the center of the display screen 2a. Specifically, the region setting unit 146 is formed in a ring shape with a predetermined width along the edge 2b of the display screen 2a, and sets the region as the setting region R (FIG. 6).

  The position and size of the setting area R can be changed. The area setting unit 146 may change at least one of the position and size of the setting area R according to the display content of the display device 2. For example, the area setting unit 146 adjusts the position and size of the setting area R according to the position of the character displayed on the display screen 2a. Specifically, when the character is positioned at the center of the display screen 2a, the region setting unit 146 sets the setting region R along the edge 2b of the display screen 2a, and the character has four sides of the display screen 2a. If it is located close to one side, a setting region R is set around the other three sides.

  The region setting unit 146 may set the setting region R according to the distance between the display device 2 and the user and the size of the display device 2. For example, the region setting unit 146 sets the setting region R larger as the distance between the display device 2 and the user increases or as the display device 2 increases. Thereby, the setting area R having an appropriate size reflecting the distance between the display device 2 and the user and the size of the display device 2 is set.

The setting area R can be adjusted by allowing the user to visually recognize a mark displayed at a predetermined position on the setting screen of the display device 2.
FIG. 7 is a schematic diagram for explaining an example of a setting screen displayed on the display device 2. When displaying the setting screen, the display control unit 145 displays marks (black circles) M1 to M4 at the four corners of the display screen 2a. The centers of the four marks M1 to M4 are positions of four points R1 to R4 that form the inner edge of the setting region R shown in FIG. The area setting unit 146 adjusts the setting area R based on the positions visually recognized by the user with respect to the four marks M1 to M4. That is, the area setting unit 146 sets the setting area R according to the mark visually recognized by the user.

  In the above description, the area setting unit 146 sets the setting area R so as to include the four corners of the display screen 2a. However, the present invention is not limited to this. For example, the area setting unit 146 may set the setting area R in at least one of the four corners of the display screen 2a. Here, it is assumed that the user has selected the mark M2 among the four marks M1 to M4. Then, the area setting unit 146 sets the area around the mark M2 selected by the user as the setting area R. Thereby, the user can set the setting region R at a position where the line of sight is easily directed.

  In the above description, the control device 6 controls the display of one display device 2 viewed by the user, but the present invention is not limited to this. For example, when the user is viewing a plurality of display devices 2, the control device 6 may control the display of the plurality of display devices 2 according to the user's viewpoint position with respect to the plurality of display devices 2. At this time, the setting area of each display device 2 needs to be set.

  FIG. 8 is a schematic diagram for explaining setting of setting areas of a plurality of display devices 2A and 2B. Here, it is assumed that the two display devices 2A and 2B are installed at different installation positions as viewed from the user. At this time, the area setting unit 146 sets a setting area corresponding to the installation position for each of the two display devices 2A and 2B. Specifically, first, the region setting unit 146 of the control device 6A sets a setting region on the display device 2A using, for example, a mark shown in FIG. Thereafter, the area setting unit 146 of the control device 6B similarly sets the setting area of the display device 2B.

  In the above description, the direction of the user's line of sight is detected by the electrooculogram sensor that is the electrooculometer 42. However, the present invention is not limited to this. For example, the direction of the line of sight may be detected by another device such as a CCD camera.

  In the above description, the orientation of the user's head is detected by the six-axis sensor 44 including an acceleration sensor and a gyro sensor. However, the present invention is not limited to this. For example, the orientation of the head may be detected by imaging the head with a camera.

  In the above description, the head-mounted device 4 is provided with the sensors (ophthalmometer 42 and 6-axis sensor 44) that detect the direction of the user's line of sight and the direction of the head. However, the present invention is not limited to this. . For example, a camera that detects the direction of the line of sight and the direction of the head may be attached to the display device 2 so that the user can be imaged.

  In the above description, the display device 2 is a stationary display, but is not limited thereto. For example, the display device 2 may be a head mounted display capable of displaying a screen on the entire circumference of 360 degrees. This head-mounted display is a display that does not rotate in conjunction with the movement of the head.

  In the above description, the control device 6 that is a display control device of the display device 2 is provided in the personal computer connected to the display device 2, but is not limited thereto. For example, the control device 6 may be provided in the head-mounted device 4, and in this case, the display content processed by the control device 6 is transmitted to the display device 2 and displayed. Moreover, the control apparatus 6 may be comprised by the control part provided in the head mounting apparatus 4, and the control part provided in the personal computer.

<Display Process of Display Device 2>
Display processing of the display device 2 according to the user's viewpoint position will be described with reference to FIG. The display process of the display device 2 is realized by the control unit 14 of the control device 6 executing a program stored in the storage unit 12. The program may be downloaded from an external server.

  FIG. 9 is a flowchart for explaining the flow of display processing of the display device 2 in accordance with the viewpoint position of the user. This flowchart is started when the display control unit 145 of the control unit 14 displays a screen on the display device 2 (step S102). Further, it is assumed that the user is wearing the glasses that are the head-mounted device 4 and is looking at the display device 2.

  Next, the line-of-sight information acquisition unit 142 acquires line-of-sight information indicating the direction of the user's line of sight (step S104). Specifically, the line-of-sight information acquisition unit 142 acquires line-of-sight information based on the electrooculogram detected by the electrooculometer 42 of the head-mounted device 4.

  Next, the head information acquisition unit 143 acquires head information indicating the movement of the user's head (step S106). Specifically, the head information acquisition unit 143 acquires head information based on the detection result of the 6-axis sensor 44 of the head-mounted device 4.

  In the above description, the head information is acquired after the line-of-sight information is acquired. However, the present invention is not limited to this. For example, the line-of-sight information may be acquired after acquiring the head information, or the line-of-sight information and the head information may be acquired simultaneously.

  Next, the viewpoint position estimation unit 144 estimates the user's viewpoint position with respect to the display device 2 based on the acquired line-of-sight information and head information (step S108). For example, the viewpoint position estimation unit 144 estimates whether the viewpoint position is located within the setting area R or outside the setting area R. By using both the line-of-sight information and the head information, the viewpoint position can be estimated with high accuracy.

  Next, the display control unit 145 controls the display of the display device 2 based on the estimated viewpoint position of the user (step S110). Specifically, the display control unit 145 superimposes and displays additional information I when the viewpoint position is within the setting area R (see FIG. 4), and when the viewpoint position is outside the setting area R. The additional information I is not displayed (see FIG. 2).

  Thereafter, the processes in steps S104 to S110 described above are repeated until the display of the screen of the display device 2 is completed. That is, the display of the display device 2 is switched according to the viewpoint position that is displaced with the change in the orientation of the user's head and line of sight with respect to the display device 2.

<Effect in this embodiment>
The control device 6 that is the display control device of the above-described embodiment estimates the user's viewpoint position with respect to the display device 2 based on the line-of-sight information indicating the direction of the user's line of sight and the head information indicating the direction of the head. And the control apparatus 6 controls the display of the display apparatus 2 based on the estimated viewpoint position.
By estimating the user's viewpoint position based on the line-of-sight information and the head information, for example, the user's viewpoint position relative to the display device 2 can be estimated with high accuracy even if the head and the line-of-sight direction are different. By controlling the display of the display device 2 based on the viewpoint position estimated in this way, when the user U watching the display device 2 changes the viewpoint position to display additional information. , Display can be switched appropriately.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment, A various deformation | transformation and change are possible within the range of the summary. is there. For example, the specific embodiments of device distribution / integration are not limited to the above-described embodiments, and all or a part of them may be configured to be functionally or physically distributed / integrated in arbitrary units. Can do. In addition, new embodiments generated by any combination of a plurality of embodiments are also included in the embodiments of the present invention. The effect of the new embodiment produced by the combination has the effect of the original embodiment.

DESCRIPTION OF SYMBOLS 2 Display apparatus 4 Head mounting apparatus 6 Control apparatus 14 Control part 142 Gaze information acquisition part 143 Head information estimation part 144 Viewpoint position estimation part 145 Display control part 146 Area setting part I Additional information R Setting area

Claims (14)

A line-of-sight information acquisition unit for acquiring line-of-sight information indicating the direction of the user's line of sight;
A head information acquisition unit that acquires head information indicating the orientation of the user's head;
A viewpoint position estimation unit that estimates the viewpoint position of the user with respect to a display device based on the acquired line-of-sight information and the head information;
A display control unit that controls display of the display device based on the estimated viewpoint position;
A display control device. The display control unit, when it is estimated that the viewpoint position is located within a predetermined region of the display device, displays additional information superimposed on the display screen of the display device.
The display control apparatus according to claim 1. The display control unit hides the additional information when it is estimated that the viewpoint position has moved out of the predetermined area from within the predetermined area.
The display control apparatus according to claim 2. The display control unit displays information on display content displayed at the viewpoint position as the additional information.
The display control apparatus according to claim 2 or 3. An area setting unit for setting the predetermined area in an area outside a predetermined range from the center of the display screen;
The display control apparatus of any one of Claim 2 to 4. An area setting unit for setting the predetermined area in a corner area of the display screen;
The display control apparatus of any one of Claim 2 to 4. The region setting unit changes at least one of the position and the size of the predetermined region according to the display content of the display device;
The display control apparatus according to claim 5 or 6. The display control unit displays a mark at a predetermined position of the display device;
The area setting unit sets the predetermined area according to a mark visually recognized by the user.
The display control apparatus of any one of Claim 5 to 7. The region setting unit sets the predetermined region according to a distance between the display device and the user and a size of the display device.
The display control apparatus of any one of Claim 5 to 7. The area setting unit sets the predetermined area according to the installation position for each of the plurality of display devices installed at different installation positions.
The display control apparatus according to any one of claims 5 to 9. The line-of-sight information acquisition unit acquires the line-of-sight information from an electrooculometer that detects the electrooculogram of the user,
The head information acquisition unit acquires the head information from a six-axis sensor that detects movement of the head.
The display control apparatus of any one of Claim 1 to 10. The line-of-sight information acquisition unit acquires the line-of-sight information from the electrooculometer provided in a head-mounted device mounted on the head of the user,
The head information acquisition unit acquires the head information from the 6-axis sensor provided in the head-mounted device.
The display control apparatus according to claim 11. Obtaining line-of-sight information indicating the direction of the user's line of sight;
Obtaining head information indicating the orientation of the user's head;
Estimating the user's viewpoint position relative to a display device based on the acquired line-of-sight information and the head information; and
Controlling the display of the display device based on the estimated viewpoint position;
A display control method comprising: On the computer,
Obtaining line-of-sight information indicating the direction of the user's line of sight;
Obtaining head information indicating the orientation of the user's head;
Estimating the user's viewpoint position relative to a display device based on the acquired line-of-sight information and the head information; and
Controlling the display of the display device based on the estimated viewpoint position;
A program for running

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