JP6703578B2 - Program, method and information processing apparatus - Google Patents

Description

The present disclosure relates to a program, a method, and an information processing device.

Conventionally, a head-mounted device (HMD) is used to provide a user with a virtual space (VR). Regarding the virtual space, various techniques have been proposed for giving the user an immersive feeling as if the virtual space actually exists.

In particular, in the case of a room scale VR assuming an FPS (First Person Shooter), when the user wears the HMD and moves the position in a room or the like, the movement of the HMD also moves the virtual camera in the virtual space. It is possible to obtain a feeling that the user is moving in the virtual space by himself (for example, refer to Patent Document 1 below).

JP, 2018-81644, A

When the HMD is worn, the user moves to the position without being able to visually recognize the situation around the physical space. Therefore, it may collide with the wall of the physical space.

The present disclosure aims to suppress user motion during a virtual experience.

According to one aspect of the present disclosure, a program executed by a computer is provided. The program causes a computer to define a virtual space including a virtual viewpoint associated with the user, and a first view image corresponding to the view from the virtual viewpoint on a head mounted device associated with the user. Step, detecting the movement of the position of the user in the physical space, moving the position of the virtual viewpoint according to the movement of the position of the user, according to the movement of the position of the virtual viewpoint, Updating the first field-of-view image to a second field-of-view image that is a field-of-view image corresponding to the movement of the position of the virtual viewpoint and has a lower visibility than the first field-of-view image. Let

According to the present disclosure, it is possible to suppress a user's intense movement in a virtual space and improve safety.

It is a figure showing the outline of the composition of the HMD system according to a certain embodiment. FIG. 16 is a block diagram illustrating an example of a hardware configuration of a computer according to an embodiment. It is a figure which represents notionally the uvw visual field coordinate system set to HMD according to one embodiment. It is a figure which represents notionally one aspect expressing the virtual space according to one embodiment. It is the figure which represented the head of the user who equips with HMD according to a certain embodiment from the top. It is a figure showing the YZ section which looked at the field-of-view area from the X direction in virtual space. It is a figure showing the XZ section which looked at a field of view from the Y direction in virtual space. It is a figure showing the schematic structure of the controller according to a certain embodiment. It is a figure showing an example of each direction of yaw, roll, and pitch prescribed|regulated with respect to the user's right hand according to a certain embodiment. It is a block diagram showing an example of the hardware constitutions of the server according to a certain embodiment. It is a block diagram showing a computer according to an embodiment as a module configuration. 7 is a sequence chart showing a part of a process executed in the HMD set according to an embodiment. It is a schematic diagram showing the situation where each HMD provides a virtual space to a user in a network. It is a figure which shows the visual field image of the user 5A in FIG. 12(A). It is a sequence diagram which shows the process performed in the HMD system according to a certain embodiment. It is a block diagram showing a detailed configuration of a module of a computer according to an embodiment. It is a figure which shows an example of the play room according to a certain embodiment. 7 is a flowchart showing a process executed by a computer according to an embodiment. It is a figure which shows an example of a 1st field-of-view image. It is a figure which shows an example of a 2nd view image. It is a figure which shows an example of a 2nd view image. It is a figure which shows an example of a 2nd view image.

Hereinafter, embodiments of this technical idea will be described in detail with reference to the drawings. In the following description, the same parts are designated by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated. In one or more embodiments shown in the present disclosure, elements included in each embodiment can be combined with each other, and the resultant product also forms part of the embodiment shown in the present disclosure.

[Configuration of HMD system]
A configuration of an HMD (Head-Mounted Device) system 100 will be described with reference to FIG. 1. FIG. 1 is a diagram showing a schematic configuration of an HMD system 100 according to the present embodiment. The HMD system 100 is provided as a home system or a business system.

The HMD system 100 includes a server 600, HMD sets 110A, 110B, 110C and 110D, an external device 700, and a network 2. Each of the HMD sets 110A, 110B, 110C, and 110D is configured to be able to communicate with the server 600 and the external device 700 via the network 2. Hereinafter, the HMD sets 110A, 110B, 110C, and 110D are collectively referred to as the HMD set 110. The number of HMD sets 110 configuring the HMD system 100 is not limited to four, and may be three or less or five or more. The HMD set 110 includes an HMD 120, a computer 200, an HMD sensor 410, a display 430, and a controller 300. The HMD 120 includes a monitor 130, a gaze sensor 140, a first camera 150, a second camera 160, a microphone 170, and a speaker 180. The controller 300 may include a motion sensor 420.

In one aspect, the computer 200 can be connected to the Internet or other network 2 and can communicate with the server 600 or other computers connected to the network 2. Examples of other computers include computers of other HMD sets 110 and external devices 700. In another aspect, HMD 120 may include sensor 190 instead of HMD sensor 410.

The HMD 120 may be mounted on the head of the user 5 and provide the virtual space to the user 5 during operation. More specifically, the HMD 120 displays an image for the right eye and an image for the left eye on the monitor 130, respectively. When each eye of the user 5 visually recognizes each image, the user 5 can recognize the image as a three-dimensional image based on the parallax of both eyes. The HMD 120 may include both a so-called head mounted display including a monitor and a head mounted device to which a terminal having a monitor such as a smartphone can be mounted.

The monitor 130 is realized as, for example, a non-transmissive display device. In one aspect, the monitor 130 is arranged on the main body of the HMD 120 so as to be located in front of both eyes of the user 5. Therefore, the user 5 can immerse himself in the virtual space when viewing the three-dimensional image displayed on the monitor 130. In one aspect, the virtual space includes, for example, a background, an object that the user 5 can operate, and an image of a menu that the user 5 can select. In one aspect, the monitor 130 can be realized as a liquid crystal monitor or an organic EL (Electro Luminescence) monitor included in a so-called smartphone or other information display terminal.

In another aspect, the monitor 130 can be realized as a transmissive display device. In this case, the HMD 120 may be an open type such as a spectacle type instead of the closed type that covers the eyes of the user 5 as shown in FIG. 1. The transmissive monitor 130 may be temporarily configurable as a non-transmissive display device by adjusting its transmittance. The monitor 130 may include a configuration for simultaneously displaying a part of an image forming the virtual space and the real space. For example, the monitor 130 may display an image of the real space taken by a camera mounted on the HMD 120, or may make the real space visible by setting a part of the transmittances high.

In one aspect, monitor 130 may include a sub-monitor for displaying an image for the right eye and a sub-monitor for displaying an image for the left eye. In another aspect, the monitor 130 may be configured to integrally display an image for the right eye and an image for the left eye. In this case, the monitor 130 includes a high speed shutter. The high-speed shutter operates so that the image for the right eye and the image for the left eye can be alternately displayed so that the image is recognized by only one of the eyes.

In one aspect, the HMD 120 includes a plurality of light sources (not shown). Each light source is realized by, for example, an LED (Light Emitting Diode) that emits infrared rays. The HMD sensor 410 has a position tracking function for detecting the movement of the HMD 120. More specifically, the HMD sensor 410 reads a plurality of infrared rays emitted by the HMD 120 and detects the position and inclination of the HMD 120 in the physical space.

In another aspect, the HMD sensor 410 may be implemented by a camera. In this case, the HMD sensor 410 can detect the position and inclination of the HMD 120 by executing the image analysis process using the image information of the HMD 120 output from the camera.

In another aspect, the HMD 120 may include a sensor 190 as a position detector instead of the HMD sensor 410 or in addition to the HMD sensor 410. The HMD 120 can detect the position and the inclination of the HMD 120 itself using the sensor 190. For example, when the sensor 190 is an angular velocity sensor, a geomagnetic sensor, or an acceleration sensor, the HMD 120 may use any of these sensors instead of the HMD sensor 410 to detect its own position and tilt. As an example, when the sensor 190 is an angular velocity sensor, the angular velocity sensor detects the angular velocity around the three axes of the HMD 120 in the physical space over time. The HMD 120 calculates the temporal change of the angle around the three axes of the HMD 120 based on each angular velocity, and further calculates the inclination of the HMD 120 based on the temporal change of the angle.

The gaze sensor 140 detects the directions in which the right and left eyes of the user 5 are directed. That is, the gaze sensor 140 detects the line of sight of the user 5. The detection of the line-of-sight direction is realized by a known eye tracking function, for example. The gaze sensor 140 is realized by a sensor having the eye tracking function. In one aspect, the gaze sensor 140 preferably includes a sensor for the right eye and a sensor for the left eye. The gaze sensor 140 may be, for example, a sensor that irradiates the right eye and the left eye of the user 5 with infrared light, and receives the reflected light from the cornea and the iris with respect to the irradiated light to detect the rotation angle of each eyeball. .. The gaze sensor 140 can detect the line of sight of the user 5 based on each detected rotation angle.

The first camera 150 photographs the lower part of the face of the user 5. More specifically, the first camera 150 photographs the nose and mouth of the user 5. The second camera 160 captures the eyes and eyebrows of the user 5. The casing of the HMD 120 on the user 5 side is defined as the inside of the HMD 120, and the casing of the HMD 120 opposite to the user 5 is defined as the outside of the HMD 120. In an aspect, the first camera 150 may be arranged outside the HMD 120 and the second camera 160 may be arranged inside the HMD 120. The images generated by the first camera 150 and the second camera 160 are input to the computer 200. In another aspect, the first camera 150 and the second camera 160 may be realized as one camera, and the one camera may be used to capture the face of the user 5.

The microphone 170 converts the utterance of the user 5 into a voice signal (electrical signal) and outputs it to the computer 200. The speaker 180 converts the voice signal into voice and outputs the voice to the user 5. In another aspect, HMD 120 may include earphones instead of speaker 180.

The controller 300 is connected to the computer 200 by wire or wirelessly. The controller 300 receives an input of a command from the user 5 to the computer 200. In one aspect, the controller 300 is configured to be graspable by the user 5. In another aspect, the controller 300 is configured to be attachable to a part of the body or clothing of the user 5. In still another aspect, controller 300 may be configured to output at least one of vibration, sound, and light based on a signal transmitted from computer 200. In still another aspect, the controller 300 receives an operation from the user 5 for controlling the position and movement of the object arranged in the virtual space.

In one aspect, the controller 300 includes multiple light sources. Each light source is realized by, for example, an LED that emits infrared rays. The HMD sensor 410 has a position tracking function. In this case, the HMD sensor 410 reads a plurality of infrared rays emitted by the controller 300 and detects the position and inclination of the controller 300 in the physical space. In another aspect, the HMD sensor 410 may be implemented by a camera. In this case, the HMD sensor 410 can detect the position and inclination of the controller 300 by executing the image analysis process using the image information of the controller 300 output from the camera.

The motion sensor 420 is attached to the hand of the user 5 and detects the movement of the hand of the user 5 in a certain aspect. For example, the motion sensor 420 detects the rotation speed of the hand, the rotation speed, and the like. The detected signal is sent to the computer 200. The motion sensor 420 is provided in the controller 300, for example. In one aspect, the motion sensor 420 is provided, for example, in the controller 300 that is configured to be held by the user 5. In another aspect, for safety in the physical space, the controller 300 is attached to something that does not easily fly by being attached to the hand of the user 5 like a glove type. In yet another aspect, a sensor not attached to the user 5 may detect the movement of the hand of the user 5. For example, a signal from a camera that captures the user 5 may be input to the computer 200 as a signal representing the operation of the user 5. The motion sensor 420 and the computer 200 are wirelessly connected to each other, for example. In the case of wireless, the communication form is not particularly limited, and, for example, Bluetooth (registered trademark) or other known communication methods are used.

The display 430 displays an image similar to the image displayed on the monitor 130. Thereby, a user other than the user 5 wearing the HMD 120 can view the same image as the user 5. The image displayed on the display 430 does not have to be a three-dimensional image, and may be an image for the right eye or an image for the left eye. Examples of the display 430 include a liquid crystal display and an organic EL monitor.

The server 600 can send the program to the computer 200. In another aspect, the server 600 may communicate with other computers 200 for providing virtual reality to the HMD 120 used by other users. For example, when a plurality of users play a participation-type game in an amusement facility, each computer 200 communicates a signal based on the operation of each user with another computer 200 via the server 600 to allow a plurality of users in the same virtual space. Allows users to enjoy common games. Each computer 200 may communicate a signal based on the operation of each user with another computer 200 without passing through the server 600.

The external device 700 may be any device as long as it can communicate with the computer 200. The external device 700 may be, for example, a device capable of communicating with the computer 200 via the network 2, or a device capable of directly communicating with the computer 200 by short-range wireless communication or wired connection. Examples of the external device 700 include, but are not limited to, smart devices, PCs (Personal Computers), and peripheral devices of the computer 200.

[Computer hardware configuration]
A computer 200 according to the present embodiment will be described with reference to FIG. FIG. 2 is a block diagram showing an example of a hardware configuration of computer 200 according to the present embodiment. The computer 200 includes a processor 210, a memory 220, a storage 230, an input/output interface 240, and a communication interface 250 as main components. Each component is connected to the bus 260.

The processor 210 executes a series of instructions included in a program stored in the memory 220 or the storage 230 based on a signal given to the computer 200 or when a predetermined condition is satisfied. In one aspect, the processor 210 is implemented as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), an MPU (Micro Processor Unit), an FPGA (Field-Programmable Gate Array), or other device.

The memory 220 temporarily stores programs and data. The program is loaded from the storage 230, for example. The data includes the data input to the computer 200 and the data generated by the processor 210. In one aspect, the memory 220 is implemented as a RAM (Random Access Memory) or other volatile memory.

The storage 230 permanently holds programs and data. The storage 230 is realized as, for example, a ROM (Read-Only Memory), a hard disk device, a flash memory, or another non-volatile storage device. The programs stored in the storage 230 include a program for providing a virtual space in the HMD system 100, a simulation program, a game program, a user authentication program, and a program for realizing communication with another computer 200. The data stored in the storage 230 includes data and objects for defining the virtual space.

In another aspect, the storage 230 may be realized as a removable storage device such as a memory card. In yet another aspect, instead of the storage 230 built in the computer 200, a configuration using programs and data stored in an external storage device may be used. With such a configuration, for example, in a situation where a plurality of HMD systems 100 are used, such as in an amusement facility, it is possible to collectively update programs and data.

The input/output interface 240 communicates signals with the HMD 120, the HMD sensor 410, the motion sensor 420, and the display 430. The monitor 130, the gaze sensor 140, the first camera 150, the second camera 160, the microphone 170, and the speaker 180 included in the HMD 120 can communicate with the computer 200 via the input/output interface 240 of the HMD 120. In one aspect, the input/output interface 240 is realized by using a USB (Universal Serial Bus), a DVI (Digital Visual Interface), an HDMI (registered trademark) (High-Definition Multimedia Interface), and other terminals. The input/output interface 240 is not limited to the above.

In certain aspects, the input/output interface 240 may also be in communication with the controller 300. For example, the input/output interface 240 receives input of signals output from the controller 300 and the motion sensor 420. In another aspect, the input/output interface 240 sends the instruction output from the processor 210 to the controller 300. The command instructs the controller 300 to perform vibration, voice output, light emission, or the like. Upon receiving the command, the controller 300 executes any one of vibration, voice output, and light emission according to the command.

The communication interface 250 is connected to the network 2 and communicates with another computer (for example, the server 600) connected to the network 2. In one aspect, the communication interface 250 is realized as, for example, a LAN (Local Area Network) or other wired communication interface, or a WiFi (Wireless Fidelity), Bluetooth (registered trademark), NFC (Near Field Communication), or other wireless communication interface. To be done. The communication interface 250 is not limited to the above.

In one aspect, the processor 210 accesses the storage 230, loads one or more programs stored in the storage 230 into the memory 220, and executes a series of instructions included in the program. The one or more programs may include an operating system of the computer 200, an application program for providing a virtual space, game software executable in the virtual space, and the like. The processor 210 sends a signal for providing a virtual space to the HMD 120 via the input/output interface 240. The HMD 120 displays an image on the monitor 130 based on the signal.

In the example illustrated in FIG. 2, the configuration in which the computer 200 is provided outside the HMD 120 is shown, but in another aspect, the computer 200 may be incorporated in the HMD 120. As an example, a portable information communication terminal (for example, a smartphone) including the monitor 130 may function as the computer 200.

The computer 200 may be configured to be commonly used by the plurality of HMDs 120. With such a configuration, for example, the same virtual space can be provided to a plurality of users, so that each user can enjoy the same application as other users in the same virtual space.

In one embodiment, in the HMD system 100, a real coordinate system that is a coordinate system in the real space is preset. The real coordinate system has three reference directions (axes) that are parallel to the vertical direction in the real space, the horizontal direction orthogonal to the vertical direction, and the front-back direction orthogonal to both the vertical direction and the horizontal direction. The horizontal direction, vertical direction (vertical direction), and front-back direction in the real coordinate system are defined as the x-axis, the y-axis, and the z-axis, respectively. More specifically, in the real coordinate system, the x axis is parallel to the horizontal direction of the real space. The y-axis is parallel to the vertical direction of the real space. The z axis is parallel to the front-back direction of the physical space.

In one aspect, HMD sensor 410 includes an infrared sensor. When the infrared sensor detects the infrared rays emitted from the respective light sources of the HMD 120, the presence of the HMD 120 is detected. The HMD sensor 410 further detects the position and inclination (direction) of the HMD 120 in the real space according to the movement of the user 5 wearing the HMD 120, based on the value of each point (each coordinate value in the actual coordinate system). To do. More specifically, the HMD sensor 410 can detect a temporal change in the position and inclination of the HMD 120 by using each value detected over time.

Each inclination of the HMD 120 detected by the HMD sensor 410 corresponds to each inclination around the three axes of the HMD 120 in the real coordinate system. The HMD sensor 410 sets the uvw visual field coordinate system to the HMD 120 based on the inclination of the HMD 120 in the actual coordinate system. The uvw visual field coordinate system set in the HMD 120 corresponds to the viewpoint coordinate system when the user 5 wearing the HMD 120 views an object in the virtual space.

[Uvw view coordinate system]
The uvw visual field coordinate system will be described with reference to FIG. FIG. 3 is a diagram conceptually showing a uvw visual field coordinate system set in HMD 120 according to an embodiment. The HMD sensor 410 detects the position and inclination of the HMD 120 in the real coordinate system when the HMD 120 is activated. The processor 210 sets the uvw visual field coordinate system in the HMD 120 based on the detected values.

As shown in FIG. 3, the HMD 120 sets a three-dimensional uvw visual field coordinate system with the head of the user 5 wearing the HMD 120 as the center (origin). More specifically, the HMD 120 has a horizontal direction, a vertical direction, and a front-back direction (x-axis, y-axis, z-axis) that define the real coordinate system by the inclination around each axis of the HMD 120 in the real coordinate system. Three directions newly obtained by inclining about the axis are set as a pitch axis (u axis), a yaw axis (v axis), and a roll axis (w axis) of the uvw visual field coordinate system in the HMD 120.

In one aspect, when the user 5 wearing the HMD 120 stands upright and visually recognizes the front, the processor 210 sets the uvw visual field coordinate system parallel to the real coordinate system in the HMD 120. In this case, the horizontal direction (x axis), the vertical direction (y axis), and the front-back direction (z axis) in the real coordinate system are the pitch axis (u axis) and yaw axis (v axis) of the uvw visual field coordinate system in the HMD 120. , And the roll axis (w axis).

After the uvw visual field coordinate system is set in the HMD 120, the HMD sensor 410 can detect the tilt of the HMD 120 in the set uvw visual field coordinate system based on the movement of the HMD 120. In this case, the HMD sensor 410 detects the pitch angle (θu), the yaw angle (θv), and the roll angle (θw) of the HMD 120 in the uvw visual field coordinate system as the inclination of the HMD 120. The pitch angle (θu) represents the tilt angle of the HMD 120 around the pitch axis in the uvw visual field coordinate system. The yaw angle (θv) represents the tilt angle of the HMD 120 around the yaw axis in the uvw visual field coordinate system. The roll angle (θw) represents the tilt angle of the HMD 120 around the roll axis in the uvw visual field coordinate system.

The HMD sensor 410 sets the uvw visual field coordinate system in the HMD 120 after the HMD 120 moves to the HMD 120 based on the detected inclination of the HMD 120. The relationship between the HMD 120 and the uvw visual field coordinate system of the HMD 120 is always constant regardless of the position and inclination of the HMD 120. When the position and the inclination of the HMD 120 change, the position and the inclination of the uvw visual field coordinate system of the HMD 120 in the real coordinate system change in association with the change of the position and the inclination.

In one aspect, the HMD sensor 410 uses the infrared light intensity acquired based on the output from the infrared sensor and the relative positional relationship between the plurality of points (for example, the distance between the points) to determine the HMD 120. The position in the real space may be specified as the relative position with respect to the HMD sensor 410. The processor 210 may determine the origin of the uvw visual field coordinate system of the HMD 120 in the real space (real coordinate system) based on the specified relative position.

[Virtual space]
The virtual space will be further described with reference to FIG. FIG. 4 is a diagram conceptually showing one aspect of expressing virtual space 11 according to an embodiment. The virtual space 11 has a spherical structure that entirely covers the center 12 in the 360-degree direction. In FIG. 4, the celestial sphere in the upper half of the virtual space 11 is illustrated in order not to complicate the description. Each mesh is defined in the virtual space 11. The position of each mesh is defined in advance as a coordinate value in an XYZ coordinate system which is a global coordinate system defined in the virtual space 11. The computer 200 associates each partial image forming the panoramic image 13 (still image, moving image, etc.) that can be expanded in the virtual space 11 with each corresponding mesh in the virtual space 11.

In a certain aspect, in the virtual space 11, an XYZ coordinate system whose origin is the center 12 is defined. The XYZ coordinate system is, for example, parallel to the real coordinate system. The horizontal direction, vertical direction (vertical direction), and front-back direction in the XYZ coordinate system are defined as the X-axis, Y-axis, and Z-axis, respectively. Therefore, the X axis of the XYZ coordinate system (horizontal direction) is parallel to the x axis of the real coordinate system, the Y axis of the XYZ coordinate system (vertical direction) is parallel to the y axis of the real coordinate system, and the Y axis of the XYZ coordinate system is The Z axis (front-back direction) is parallel to the z axis of the real coordinate system.

When the HMD 120 is activated, that is, in the initial state of the HMD 120, the virtual camera 14 is arranged at the center 12 of the virtual space 11. In an aspect, the processor 210 displays the image captured by the virtual camera 14 on the monitor 130 of the HMD 120. The virtual camera 14 similarly moves in the virtual space 11 in association with the movement of the HMD 120 in the physical space. As a result, changes in the position and the inclination of the HMD 120 in the physical space can be reproduced in the virtual space 11 as well.

The uvw visual field coordinate system is defined for the virtual camera 14 as in the case of the HMD 120. The uvw visual field coordinate system of the virtual camera 14 in the virtual space 11 is defined so as to be linked to the uvw visual field coordinate system of the HMD 120 in the physical space (real coordinate system). Therefore, when the inclination of the HMD 120 changes, the inclination of the virtual camera 14 also changes accordingly. The virtual camera 14 can also move in the virtual space 11 in conjunction with the movement of the user 5 wearing the HMD 120 in the real space.

The processor 210 of the computer 200 defines the view area 15 in the virtual space 11 based on the position and the inclination (reference line of sight 16) of the virtual camera 14. The field-of-view area 15 corresponds to an area of the virtual space 11 that is visually recognized by the user 5 wearing the HMD 120. That is, the position of the virtual camera 14 can be said to be the viewpoint of the user 5 in the virtual space 11.

The line of sight of the user 5 detected by the gaze sensor 140 is the direction in the viewpoint coordinate system when the user 5 visually recognizes an object. The uvw visual field coordinate system of the HMD 120 is equal to the viewpoint coordinate system when the user 5 views the monitor 130. The uvw view coordinate system of the virtual camera 14 is linked to the uvw view coordinate system of the HMD 120. Therefore, HMD system 100 according to an aspect can regard the line of sight of user 5 detected by gaze sensor 140 as the line of sight of user 5 in the uvw visual field coordinate system of virtual camera 14.

[User's line of sight]
The determination of the line of sight of the user 5 will be described with reference to FIG. FIG. 5 is a diagram showing the head of user 5 wearing HMD 120 according to an embodiment from above.

In a certain aspect, the gaze sensor 140 detects each line of sight of the right eye and the left eye of the user 5. In one aspect, when the user 5 is looking closer, the gaze sensor 140 detects the lines of sight R1 and L1. In another aspect, when the user 5 is looking far away, the gaze sensor 140 detects the sight lines R2 and L2. In this case, the angle formed by the lines of sight R2 and L2 with respect to the roll axis w is smaller than the angle formed by the lines of sight R1 and L1 with respect to the roll axis w. The gaze sensor 140 transmits the detection result to the computer 200.

When the computer 200 receives the detection values of the lines of sight R1 and L1 from the gaze sensor 140 as the result of the line of sight detection, the computer 200 identifies the point of gaze N1 that is the intersection of the lines of sight R1 and L1 based on the detected values. On the other hand, when the detection values of the lines of sight R2 and L2 are received from the gaze sensor 140, the computer 200 specifies the intersection of the lines of sight R2 and L2 as the point of gaze. The computer 200 specifies the line of sight N0 of the user 5 based on the specified position of the gazing point N1. The computer 200 detects, as the line of sight N0, for example, the extending direction of a straight line passing through the midpoint of a straight line connecting the right eye R and the left eye L of the user 5 and the gazing point N1. The line of sight N0 is the direction in which the user 5 is actually directing his or her eyes with both eyes. The line-of-sight N0 corresponds to the direction in which the user 5 is actually directing his or her line-of-sight to the view field 15.

In another aspect, the HMD system 100 may include a television broadcast receiving tuner. With such a configuration, the HMD system 100 can display a television program in the virtual space 11.

In yet another aspect, the HMD system 100 may include a communication circuit for connecting to the Internet or a call function for connecting to a telephone line.

[Viewing area]
The visibility region 15 will be described with reference to FIGS. 6 and 7. FIG. 6 is a diagram showing a YZ cross section of the view field 15 in the virtual space 11 viewed from the X direction. FIG. 7 is a view showing an XZ cross section of the view field 15 in the virtual space 11 as seen from the Y direction.

As shown in FIG. 6, the view field region 15 in the YZ cross section includes a region 18. The area 18 is defined by the position of the virtual camera 14, the reference line of sight 16, and the YZ section of the virtual space 11. The processor 210 defines a range including the polar angle α around the reference line of sight 16 in the virtual space as a region 18.

As shown in FIG. 7, the view region 15 in the XZ section includes a region 19. The region 19 is defined by the position of the virtual camera 14, the reference line of sight 16, and the XZ section of the virtual space 11. The processor 210 defines a range including the azimuth angle β around the reference line of sight 16 in the virtual space 11 as a region 19. The polar angles α and β are determined according to the position of the virtual camera 14 and the inclination (direction) of the virtual camera 14.

In one aspect, the HMD system 100 provides the user 5 with a view in the virtual space 11 by displaying the view image 17 on the monitor 130 based on a signal from the computer 200. The visual field image 17 is an image corresponding to a portion of the panoramic image 13 corresponding to the visual field region 15. When the user 5 moves the HMD 120 mounted on the head, the virtual camera 14 also moves in conjunction with the movement. As a result, the position of the visual field 15 in the virtual space 11 changes. As a result, the view image 17 displayed on the monitor 130 is updated to the image of the panorama image 13 that is superimposed on the view region 15 in the direction in which the user 5 is facing in the virtual space 11. The user 5 can visually recognize a desired direction in the virtual space 11.

Thus, the inclination of the virtual camera 14 corresponds to the line of sight of the user 5 (reference line of sight 16) in the virtual space 11, and the position where the virtual camera 14 is arranged corresponds to the viewpoint of the user 5 in the virtual space 11. Therefore, by changing the position or tilt of the virtual camera 14, the image displayed on the monitor 130 is updated and the field of view of the user 5 is moved.

While wearing the HMD 120, the user 5 can visually recognize only the panoramic image 13 developed in the virtual space 11 without visually recognizing the real world. Therefore, the HMD system 100 can give the user 5 a high sense of immersion in the virtual space 11.

In an aspect, the processor 210 may move the virtual camera 14 in the virtual space 11 in conjunction with the movement of the user 5 wearing the HMD 120 in the real space. In this case, the processor 210 specifies the image area (visual field area 15) projected on the monitor 130 of the HMD 120 based on the position and inclination of the virtual camera 14 in the virtual space 11.

In certain aspects, virtual camera 14 may include two virtual cameras, a virtual camera for providing an image for the right eye and a virtual camera for providing an image for the left eye. Appropriate parallax is set in the two virtual cameras so that the user 5 can recognize the three-dimensional virtual space 11. In another aspect, the virtual camera 14 may be realized by one virtual camera. In this case, the image for the right eye and the image for the left eye may be generated from the image obtained by one virtual camera. In the present embodiment, the virtual camera 14 includes two virtual cameras, and the roll axis (w) generated by combining the roll axes of the two virtual cameras is adapted to the roll axis (w) of the HMD 120. The technical idea according to the present disclosure will be exemplified as being configured as described above.

[controller]
An example of the controller 300 will be described with reference to FIG. 8. FIG. 8 is a diagram showing a schematic configuration of the controller 300 according to an embodiment.

As shown in FIG. 8, in one aspect, the controller 300 may include a right controller 300R and a left controller (not shown). The right controller 300R is operated by the right hand of the user 5. The left controller is operated by the left hand of the user 5. In one aspect, the right controller 300R and the left controller are symmetrically configured as separate devices. Therefore, the user 5 can freely move the right hand holding the right controller 300R and the left hand holding the left controller, respectively. In another aspect, the controller 300 may be an integrated controller that receives operations of both hands. The right controller 300R will be described below.

The right controller 300R includes a grip 310, a frame 320, and a top surface 330. The grip 310 is configured to be gripped by the right hand of the user 5. For example, the grip 310 may be held by the palm of the user 5's right hand and three fingers (middle finger, ring finger, little finger).

The grip 310 includes buttons 340 and 350 and a motion sensor 420. The button 340 is arranged on the side surface of the grip 310 and receives an operation by the middle finger of the right hand. The button 350 is arranged on the front surface of the grip 310 and receives an operation by the index finger of the right hand. In one aspect, the buttons 340, 350 are configured as trigger-type buttons. The motion sensor 420 is built in the housing of the grip 310. If the motion of the user 5 can be detected from around the user 5 by a camera or other device, the grip 310 may not include the motion sensor 420.

The frame 320 includes a plurality of infrared LEDs 360 arranged along the circumferential direction thereof. The infrared LED 360 emits infrared light according to the progress of the program during execution of the program using the controller 300. The infrared rays emitted from the infrared LED 360 can be used to detect each position and posture (tilt, orientation) of the right controller 300R and the left controller. In the example shown in FIG. 8, the infrared LEDs 360 arranged in two rows are shown, but the number of arrays is not limited to that shown in FIG. A single row or an array of three or more rows may be used.

The top surface 330 includes buttons 370 and 380 and an analog stick 390. Buttons 370 and 380 are configured as push buttons. Buttons 370 and 380 accept an operation by the thumb of the right hand of user 5. The analog stick 390 receives an operation in an arbitrary direction of 360 degrees from an initial position (neutral position) in a certain aspect. The operation includes, for example, an operation for moving an object arranged in the virtual space 11.

In one aspect, the right controller 300R and the left controller include batteries for driving the infrared LEDs 360 and other components. Batteries include, but are not limited to, rechargeable, button type, dry cell type, and the like. In another aspect, the right controller 300R and the left controller may be connected to the USB interface of the computer 200, for example. In this case, the right controller 300R and the left controller do not require batteries.

As shown in states (A) and (B) of FIG. 8, for example, the yaw, roll, and pitch directions are defined for the right hand of the user 5. When the user 5 extends his thumb and forefinger, the direction in which the thumb extends is the yaw direction, the direction in which the forefinger extends is the roll direction, and the direction perpendicular to the plane defined by the yaw direction axis and the roll direction axis is the pitch direction. Stipulated as

[Server hardware configuration]
The server 600 according to the present embodiment will be described with reference to FIG. FIG. 9 is a block diagram showing an example of a hardware configuration of server 600 according to an embodiment. The server 600 includes a processor 610, a memory 620, a storage 630, an input/output interface 640, and a communication interface 650 as main components. Each component is connected to the bus 660.

Processor 610 executes a series of instructions included in a program stored in memory 620 or storage 630 based on a signal provided to server 600 or when a predetermined condition is satisfied. In an aspect, processor 610 is implemented as a CPU, GPU, MPU, FPGA or other device.

The memory 620 temporarily stores programs and data. The program is loaded from the storage 630, for example. The data includes data input to the server 600 and data generated by the processor 610. In one aspect, memory 620 is implemented as RAM or other volatile memory.

The storage 630 permanently holds programs and data. The storage 630 is realized as, for example, a ROM, a hard disk device, a flash memory, or another non-volatile storage device. The programs stored in the storage 630 may include a program for providing a virtual space in the HMD system 100, a simulation program, a game program, a user authentication program, and a program for realizing communication with the computer 200. The data stored in the storage 630 may include data and objects for defining the virtual space.

In another aspect, the storage 630 may be realized as a removable storage device such as a memory card. In yet another aspect, instead of the storage 630 built in the server 600, a configuration using programs and data stored in an external storage device may be used. With such a configuration, for example, in a situation where a plurality of HMD systems 100 are used, such as in an amusement facility, it is possible to collectively update programs and data.

The input/output interface 640 communicates signals with input/output devices. In one aspect, the input/output interface 640 is implemented using a USB, DVI, HDMI, or other terminal. The input/output interface 640 is not limited to the above.

The communication interface 650 is connected to the network 2 and communicates with the computer 200 connected to the network 2. In an aspect, the communication interface 650 is realized as, for example, a LAN or other wired communication interface, or a wireless communication interface such as WiFi, Bluetooth, NFC or the like. The communication interface 650 is not limited to the above.

In one aspect, the processor 610 accesses the storage 630, loads one or more programs stored in the storage 630 into the memory 620, and executes a series of instructions included in the program. The one or more programs may include an operating system of the server 600, an application program for providing a virtual space, game software executable in the virtual space, and the like. The processor 610 may send a signal for providing the virtual space to the computer 200 via the input/output interface 640.

[HMD controller]
The control device of the HMD 120 will be described with reference to FIG. 10. In one embodiment, the control device is realized by computer 200 having a well-known configuration. FIG. 10 is a block diagram showing a computer 200 according to an embodiment as a module configuration.

As shown in FIG. 10, the computer 200 includes a control module 510, a rendering module 520, a memory module 530, and a communication control module 540. In one aspect, control module 510 and rendering module 520 are implemented by processor 210. In another aspect, multiple processors 210 may operate as control module 510 and rendering module 520. The memory module 530 is realized by the memory 220 or the storage 230. The communication control module 540 is realized by the communication interface 250.

The control module 510 controls the virtual space 11 provided to the user 5. The control module 510 uses the virtual space data representing the virtual space 11 to define the virtual space 11 in the HMD system 100. The virtual space data is stored in, for example, the memory module 530. The control module 510 may generate virtual space data or acquire the virtual space data from the server 600 or the like.

The control module 510 arranges the object in the virtual space 11 using the object data representing the object. The object data is stored in the memory module 530, for example. The control module 510 may generate the object data or acquire the object data from the server 600 or the like. The objects include, for example, avatar objects that are the altercations of the user 5, character objects, operation objects such as virtual hands operated by the controller 300, landscapes including forests, mountains, etc. arranged according to the progress of the game story, cityscapes, animals. And the like.

The control module 510 arranges the avatar object of the user 5 of another computer 200 connected via the network 2 in the virtual space 11. In one aspect, control module 510 arranges the avatar object of user 5 in virtual space 11. In one aspect, control module 510 arranges an avatar object imitating user 5 in virtual space 11 based on an image including user 5. In another aspect, the control module 510 arranges, in the virtual space 11, an avatar object that has been selected by the user 5 from a plurality of types of avatar objects (for example, an object imitating an animal or an object of a deformed person). To do.

The control module 510 identifies the inclination of the HMD 120 based on the output of the HMD sensor 410. In another aspect, control module 510 identifies the tilt of HMD 120 based on the output of sensor 190 that functions as a motion sensor. The control module 510 detects organs (for example, mouth, eyes, eyebrows) forming the face of the user 5 from the images of the face of the user 5 generated by the first camera 150 and the second camera 160. The control module 510 detects the movement (shape) of each detected organ.

The control module 510 detects the line of sight of the user 5 in the virtual space 11 based on the signal from the gaze sensor 140. The control module 510 detects the viewpoint position (coordinate value in the XYZ coordinate system) at which the detected line of sight of the user 5 and the celestial sphere in the virtual space 11 intersect. More specifically, the control module 510 detects the viewpoint position based on the line of sight of the user 5 defined by the uvw coordinate system and the position and inclination of the virtual camera 14. The control module 510 transmits the detected viewpoint position to the server 600. In another aspect, the control module 510 may be configured to send line-of-sight information representing the line-of-sight of the user 5 to the server 600. In this case, the viewpoint position can be calculated based on the line-of-sight information received by the server 600.

The control module 510 reflects the movement of the HMD 120 detected by the HMD sensor 410 on the avatar object. For example, the control module 510 detects that the HMD 120 is tilted and tilts the avatar object. The control module 510 reflects the detected motion of the facial organs on the face of the avatar object arranged in the virtual space 11. The control module 510 receives the line-of-sight information of the other user 5 from the server 600 and reflects it on the line-of-sight of the avatar object of the other user 5. In one aspect, control module 510 reflects the movement of controller 300 on an avatar object or an operation object. In this case, the controller 300 includes a motion sensor, an acceleration sensor, or a plurality of light emitting elements (for example, infrared LEDs) for detecting the movement of the controller 300.

The control module 510 arranges an operation object for receiving the operation of the user 5 in the virtual space 11 in the virtual space 11. The user 5 operates, for example, an object arranged in the virtual space 11 by operating the operation object. In one aspect, the operation object may include, for example, a hand object that is a virtual hand corresponding to the hand of the user 5. In one aspect, control module 510 moves the hand object in virtual space 11 based on the output of motion sensor 420 so as to be linked to the movement of user 5's hand in the real space. In an aspect, the operation object may correspond to the hand part of the avatar object.

When each of the objects arranged in the virtual space 11 collides with another object, the control module 510 detects the collision. The control module 510 can detect, for example, a timing at which a collision area of a certain object and a collision area of another object touch, and when the detection is performed, a predetermined process is performed. The control module 510 can detect the timing at which the object is separated from the state where the objects are in contact with each other, and when the detection is made, a predetermined process is performed. The control module 510 can detect that the objects are in contact with each other. For example, the control module 510, when the operation object touches another object, detects that the operation object touches the other object, and performs a predetermined process.

In one aspect, control module 510 controls image display on monitor 130 of HMD 120. For example, the control module 510 arranges the virtual camera 14 in the virtual space 11. The control module 510 controls the position of the virtual camera 14 in the virtual space 11 and the inclination (direction) of the virtual camera 14. The control module 510 defines the field of view 15 according to the inclination of the head of the user 5 wearing the HMD 120 and the position of the virtual camera 14. The rendering module 520 generates the visual field image 17 displayed on the monitor 130 based on the determined visual field region 15. The visual field image 17 generated by the rendering module 520 is output to the HMD 120 by the communication control module 540.

When the control module 510 detects an utterance using the microphone 170 of the user 5 from the HMD 120, the control module 510 specifies the computer 200 to which the voice data corresponding to the utterance is transmitted. The voice data is transmitted to the computer 200 specified by the control module 510. When the control module 510 receives voice data from the computer 200 of another user via the network 2, the control module 510 outputs a voice (utterance) corresponding to the voice data from the speaker 180.

The memory module 530 holds data used by the computer 200 to provide the virtual space 11 to the user 5. In one aspect, the memory module 530 holds spatial information, object information, and user information.

The spatial information holds one or more templates defined to provide the virtual space 11.

The object information includes a plurality of panoramic images 13 forming the virtual space 11 and object data for arranging objects in the virtual space 11. The panoramic image 13 may include a still image and a moving image. The panoramic image 13 may include an image in unreal space and an image in real space. Examples of the image in the unreal space include an image generated by computer graphics.

The user information holds a user ID that identifies the user 5. The user ID may be, for example, an IP (Internet Protocol) address or a MAC (Media Access Control) address set in the computer 200 used by the user. In another aspect, the user ID may be set by the user. The user information includes a program or the like for causing the computer 200 to function as a control device of the HMD system 100.

The data and programs stored in the memory module 530 are input by the user 5 of the HMD 120. Alternatively, the processor 210 downloads a program or data from a computer (for example, the server 600) operated by a business operator that provides the content, and stores the downloaded program or data in the memory module 530.

The communication control module 540 can communicate with the server 600 and other information communication devices via the network 2.

In an aspect, the control module 510 and the rendering module 520 can be implemented using Unity (registered trademark) provided by Unity Technologies, Inc., for example. In another aspect, the control module 510 and the rendering module 520 can be implemented as a combination of circuit elements that implement each process.

The processing in the computer 200 is realized by hardware and software executed by the processor 210. Such software may be stored in advance in the memory module 530 such as a hard disk. The software may be stored in a computer-readable non-volatile data recording medium such as a CD-ROM and distributed as a program product. Alternatively, the software may be provided as a downloadable program product by an information provider connected to the Internet or another network. Such software is read from a data recording medium by an optical disk drive or other data reading device, or downloaded from the server 600 or other computer via the communication control module 540, and then temporarily stored in the storage module. .. The software is read from the storage module by the processor 210 and stored in RAM in the form of an executable program. The processor 210 executes the program.

[Control structure of HMD system]
The control structure of the HMD set 110 will be described with reference to FIG. 11. FIG. 11 is a sequence chart showing a part of the processing executed in HMD set 110 according to an embodiment.

As shown in FIG. 11, in step S1110, the processor 210 of the computer 200, as the control module 510, specifies the virtual space data and defines the virtual space 11.

In step S1120, processor 210 initializes virtual camera 14. For example, the processor 210 arranges the virtual camera 14 at a predetermined center 12 in the virtual space 11 in the work area of the memory, and directs the line of sight of the virtual camera 14 in the direction in which the user 5 is facing.

In step S1130, processor 210, as rendering module 520, generates view field image data for displaying an initial view field image. The generated visual field image data is output to the HMD 120 by the communication control module 540.

In step S1132, monitor 130 of HMD 120 displays the visual field image based on the visual field image data received from computer 200. The user 5 wearing the HMD 120 can recognize the virtual space 11 when viewing the visual field image.

In step S1134, HMD sensor 410 detects the position and inclination of HMD 120 based on the plurality of infrared rays emitted from HMD 120. The detection result is output to the computer 200 as motion detection data.

In step S1140, processor 210 identifies the visual field direction of user 5 wearing HMD 120 based on the position and the inclination included in the motion detection data of HMD 120.

In step S1150, processor 210 executes the application program and arranges an object in virtual space 11 based on an instruction included in the application program.

In step S1160, controller 300 detects the operation of user 5 based on the signal output from motion sensor 420, and outputs the detection data representing the detected operation to computer 200. In another aspect, the operation of the controller 300 by the user 5 may be detected based on an image from a camera arranged around the user 5.

In step S1170, processor 210 detects the operation of controller 300 by user 5 based on the detection data acquired from controller 300.

In step S1180, processor 210 generates view image data based on the operation of controller 300 by user 5. The generated visual field image data is output to the HMD 120 by the communication control module 540.

In step S1190, HMD 120 updates the visual field image based on the received visual field image data, and displays the updated visual field image on monitor 130.

[Avatar object]
An avatar object according to the present embodiment will be described with reference to FIGS. 12(A) and 12(B). Hereinafter, it is a figure explaining the avatar object of each user 5 of HMD set 110A, 110B. Hereinafter, the user of the HMD set 110A will be referred to as user 5A, the user of the HMD set 110B as user 5B, the user of the HMD set 110C as user 5C, and the user of the HMD set 110D as user 5D. The reference numeral of each component related to the HMD set 110A is attached with A, the reference numeral of each component related to the HMD set 110B is attached with B, the reference numeral of each component related to the HMD set 110C is attached with C, and the HMD set D is attached to the reference numeral of each component related to 110D. For example, the HMD 120A is included in the HMD set 110A.

FIG. 12A is a schematic diagram showing a situation in which each HMD 120 provides the user 5 with the virtual space 11 in the network 2. The computers 200A to 200D provide the virtual spaces 11A to 11D to the users 5A to 5D via the HMDs 120A to 120D, respectively. In the example shown in FIG. 12A, the virtual space 11A and the virtual space 11B are composed of the same data. In other words, the computer 200A and the computer 200B share the same virtual space. The avatar object 6A of the user 5A and the avatar object 6B of the user 5B exist in the virtual space 11A and the virtual space 11B. The avatar object 6A in the virtual space 11A and the avatar object 6B in the virtual space 11B are each equipped with the HMD 120, but this is for the sake of easy understanding of the description. In reality, these objects are equipped with the HMD 120. Not not.

In an aspect, the processor 210A may arrange the virtual camera 14A that captures the view image 17A of the user 5A at the eye position of the avatar object 6A.

FIG. 12(B) is a diagram showing a visual field image 17A of the user 5A in FIG. 12(A). The visual field image 17A is an image displayed on the monitor 130A of the HMD 120A. The view image 17A is an image generated by the virtual camera 14A. The avatar object 6B of the user 5B is displayed in the view image 17A. Although not particularly shown, the avatar object 6A of the user 5A is also displayed in the view image of the user 5B.

In the state of FIG. 12B, the user 5A can communicate with the user 5B through the virtual space 11A by dialogue. More specifically, the voice of the user 5A acquired by the microphone 170A is transmitted to the HMD 120B of the user 5B via the server 600 and output from the speaker 180B provided in the HMD 120B. The voice of the user 5B is transmitted to the HMD 120A of the user 5A via the server 600 and output from the speaker 180A provided in the HMD 120A.

The operation of the user 5B (the operation of the HMD 120B and the operation of the controller 300B) is reflected on the avatar object 6B arranged in the virtual space 11A by the processor 210A. As a result, the user 5A can recognize the action of the user 5B through the avatar object 6B.

FIG. 13 is a sequence chart showing a part of the processing executed in HMD system 100 according to the present embodiment. Although the HMD set 110D is not shown in FIG. 13, the HMD set 110D operates similarly to the HMD sets 110A, 110B, and 110C. Also in the following description, the reference numeral of each component regarding the HMD set 110A is attached with A, the reference numeral of each component regarding the HMD set 110B is attached with B, and the reference numeral of each component regarding the HMD set 110C is attached with C. It is assumed that D is added to the reference symbols of the respective components related to the HMD set 110D.

In step S1310A, the processor 210A in the HMD set 110A acquires avatar information for determining the action of the avatar object 6A in the virtual space 11A. This avatar information includes information about the avatar such as motion information, face tracking data, and voice data. The movement information includes information indicating a temporal change in the position and inclination of the HMD 120A, information indicating the movement of the hand of the user 5A detected by the motion sensor 420A, and the like. The face tracking data may be data that specifies the position and size of each part of the face of the user 5A. The face tracking data includes data indicating the movement of each organ forming the face of the user 5A and line-of-sight data. The voice data may be data indicating the voice of the user 5A acquired by the microphone 170A of the HMD 120A. The avatar information may include information specifying the avatar object 6A or the user 5A associated with the avatar object 6A, information specifying the virtual space 11A in which the avatar object 6A exists, and the like. User ID is mentioned as information which specifies avatar object 6A and user 5A. Room ID is mentioned as information which identifies 11 A of virtual spaces in which avatar object 6A exists. The processor 210A transmits the avatar information acquired as described above to the server 600 via the network 2.

In step S1310B, the processor 210B in the HMD set 110B acquires avatar information for determining the action of the avatar object 6B in the virtual space 11B, and transmits it to the server 600, as in the process in step S1310A. Similarly, in step S1310C, processor 210C in HMD set 110C acquires avatar information for determining the action of avatar object 6C in virtual space 11C, and transmits it to server 600.

In step S1320, server 600 temporarily stores the player information received from each of HMD set 110A, HMD set 110B, and HMD set 110C. The server 600 integrates the avatar information of all users (in this example, users 5A to 5C) associated with the common virtual space 11 based on the user ID, the room ID, and the like included in each avatar information. Then, the server 600 transmits the integrated avatar information to all users associated with the virtual space 11 at a predetermined timing. As a result, the synchronization process is executed. Through such synchronization processing, the HMD set 110A, the HMD set 110B, and the HMD 110C can share their avatar information at almost the same timing.

Then, each HMD set 110A-110C performs the process of step S1330A-S1330C based on the avatar information transmitted to each HMD set 110A-110C from the server 600. The process of step S1330A corresponds to the process of step S1180 in FIG.

In step S1330A, the processor 210A in the HMD set 110A updates the information on the avatar objects 6B and 6C of the other users 5B and 5C in the virtual space 11A. Specifically, the processor 210A updates the position and orientation of the avatar object 6B in the virtual space 11 based on the motion information included in the avatar information transmitted from the HMD set 110B. For example, the processor 210A updates the information (position, orientation, etc.) of the avatar object 6B included in the object information stored in the memory module 530. Similarly, the processor 210A updates the information (position, orientation, etc.) of the avatar object 6C in the virtual space 11 based on the motion information included in the avatar information transmitted from the HMD set 110C.

In step S1330B, the processor 210B in the HMD set 110B updates the information of the avatar objects 6A and 6C of the users 5A and 5C in the virtual space 11B, similarly to the processing in step S1330A. Similarly, in step S1330C, the processor 210C in the HMD set 110C updates the information of the avatar objects 6A and 6B of the users 5A and 5B in the virtual space 11C.

[Detailed module configuration]
The details of the module configuration of the computer 200 will be described with reference to FIG. FIG. 14 is a block diagram showing a detailed configuration of modules of computer 200 according to an embodiment. The computer 200 is an information processing device that reads a program stored in a memory and executes various processes.

As shown in FIG. 14, the control module 510 includes a virtual camera control module 1421, a visual field determination module 1422, a reference line-of-sight identification module 1423, a face organ detection module 1424, a motion detection module 1425, and a virtual space definition. A module 1426, a virtual object generation module 1427, an operation object control module 1428, and an avatar control module 1429 are provided. The rendering module 520 includes a visual field image generation module 1438. The memory module 530 holds space information 1431, object information 1432, user information 1433, and face information 1434.

The virtual camera control module 1421 arranges the virtual camera 14 in the virtual space 11. The virtual camera control module 1421 controls the arrangement position of the virtual camera 14 in the virtual space 11 and the orientation (tilt) of the virtual camera 14. The visual field determination module 1422 defines the visual field 15 according to the orientation of the head of the user wearing the HMD 120 and the arrangement position of the virtual camera 14. The visual field image generation module 1438 generates the visual field image 17 displayed on the monitor 130 based on the determined visual field region 15.

The reference line-of-sight identification module 1423 identifies the line of sight of the user 5 based on the signal from the gaze sensor 140. The face organ detection module 1424 detects organs (for example, mouth, eyes, eyebrows) forming the face of the user 5 from the images of the face of the user 5 generated by the first camera 150 and the second camera 160. The motion detection module 1425 detects the motion (shape) of each organ detected by the facial organ detection module 1424. 15 to 18, control contents of the face organ detection module 1424 and the motion detection module 1425 will be described later.

The virtual space definition module 1426 defines the virtual space 11 in the HMD system 100 by generating virtual space data representing the virtual space 11.

The virtual object generation module 1427 generates an object arranged in the virtual space 11. Objects can include, for example, landscapes including forests, mountains, etc., animals, etc. arranged according to the progression of the game story.

The operation object control module 1428 arranges an operation object for receiving a user operation in the virtual space 11 in the virtual space 11. The user operates an operation object to operate, for example, an object arranged in the virtual space 11. In one aspect, the operation object may include, for example, a hand object corresponding to the hand of the user wearing the HMD 120. In one aspect, the operation object can correspond to the hand portion of the avatar object described below.

The avatar control module 1429 generates data for arranging an avatar object of a user of another computer 200 connected via the network 2 in the virtual space 11. In one aspect, the avatar control module 1429 generates data for placing the avatar object of the user 5 in the virtual space 11. In an aspect, the avatar control module 1429 generates an avatar object imitating the user 5, based on the image including the user 5. In another aspect, the avatar control module 1429 sets, in the virtual space 11, an avatar object that has been selected by the user 5 from a plurality of types of avatar objects (for example, an object imitating an animal or an object of a deformed person). Generate data for placement.

The avatar control module 1429 reflects the movement of the HMD 120 detected by the HMD sensor 410 on the avatar object. For example, the avatar control module 1429 detects that the HMD 120 is tilted and generates data for tilting the avatar object. In an aspect, the avatar control module 1429 reflects the movement of the controller 300 on the avatar object. In this case, the controller 300 includes a motion sensor, an acceleration sensor, or a plurality of light emitting elements (for example, infrared LEDs) for detecting the movement of the controller 300. The avatar control module 1429 reflects the motion of the facial organs detected by the motion detection module 1425 on the face of the avatar object placed in the virtual space 11. That is, the avatar control module 1429 reflects the facial action of the user 5A on the avatar object.

When each of the objects arranged in the virtual space 11 collides with another object, the control module 510 detects the collision. The control module 510 can detect, for example, the timing at which an object touches another object, and when the detection is made, performs a predetermined process. The control module 510 can detect the timing at which the object is separated from the state where the objects are in contact with each other, and when the detection is made, a predetermined process is performed. The control module 510 can detect that the objects are in contact with each other. Specifically, the operation object control module 1428, when the operation object touches another object, detects that the operation object touches the other object and performs a predetermined process. ..

The memory module 530 holds data used by the computer 200 to provide the virtual space 11 to the user 5. In one aspect, the memory module 530 holds space information 1431, object information 1432, user information 1433, and face information 1434.

The spatial information 1431 holds one or more templates defined to provide the virtual space 11.

The object information 1432 holds content reproduced in the virtual space 11, objects used in the content, and information (eg, position information) for arranging the object in the virtual space 11. The content may include, for example, a game, content representing a landscape similar to the real world, or the like.

The user information 1433 holds a program for causing the computer 200 to function as a control device of the HMD system 100, an application program that uses each content held in the object information 1432, and the like.

The face information 1434 holds a template stored in advance for the face organ detection module 1424 to detect the face organs of the user 5. In one aspect, the face information 1434 holds a mouth template 1435, an eye template 1436, and an eyebrow template 1437. Each template may be an image corresponding to the organs that make up the face. For example, mouth template 1435 can be an image of a mouth. Each template may include multiple images.

[Playroom configuration]
FIG. 15 is a conceptual diagram showing an example of a play room used in this embodiment.
As shown in FIG. 15, a play area 1502 is set in the play room. In addition, in FIG. 15, among the elements configuring the HMD system 100 (see FIG. 1), elements other than the HMD 120 and the HMD sensors 1503 and 1504 (the HMD sensor 410 in FIG. 1) are omitted.

HMD sensors 1503 and 1504 are installed near the outside of the play area 1502. The HMD sensors 1503 and 1504 detect the position of the HMD 120 worn by the user 5, similarly to the HMD sensor 410 shown in FIG. As described above, instead of the HMD sensor 410 or in addition to the HMD sensor 410, another sensor such as an angular velocity sensor, a geomagnetic sensor, or an acceleration sensor may be used. In the play area 1502, the user 5 holds the controller 300 described above in both left and right hands.

Furniture such as a desk 1505 and a bed 1506 is arranged around the play area 1502. Therefore, for example, when the size of the play area 1502 is not sufficient, the user 5 may collide with these furnitures 1505 and 1506, walls, and the like. In the present embodiment, the computer 200 can display a visual field image for prompting the user 5 to perform a careful movement.

[Display control of view image]
FIG. 16 is a flowchart showing a processing procedure when the processor 210 of the computer 200 controls the display of the visual field image. Hereinafter, a processing procedure in the case of advancing a battle royale game in a virtual space will be described as an example. The battle royale game is a game in which a battle between a plurality of player characters or enemy characters placed in a virtual space survives.

Processor 210 first defines a virtual space that includes a virtual viewpoint associated with a user. Specifically, as described with reference to FIG. 11 and the like, the processor 210 arranges the virtual camera 14 at the center 12 (that is, the virtual viewpoint, see FIG. 4) and sets the line of sight of the virtual camera 14 to the line of sight of the user 5. Turn in the direction. Further, the processor 210 executes the application program, and virtualizes an object in the virtual space 11, for example, an object necessary for the progress of the battle royale game, a player character having a virtual viewpoint as a viewpoint, etc., based on an instruction included in the application program. Place in space. In a battle royale game, an obstacle object such as a wall that can be hidden from a battle enemy character or the like may be arranged.

Next, the processor 210, as the rendering module 520, generates view image data for displaying the first view image. The first view image is a view image corresponding to the view from the virtual viewpoint. The processor 210 sends the generated visual field image data to the monitor 130 of the HMD 120 to display an image. The user 5 wearing the HMD 120 recognizes the virtual space 11 by visually recognizing the first view image.

During the progress of the game, the HMD sensors 1503 and 1504 detect the position and inclination of the HMD 120 based on the plurality of infrared rays emitted from the HMD 120. These detection results are output to the computer 200 as motion detection data.
The processor 210 identifies the position and the visual field direction of the virtual viewpoint of the user 5 wearing the HMD 120 based on the position and the inclination included in the motion detection data of the HMD 120.

As shown in FIG. 16, when the processor 210 detects the movement of the position of the user in the physical space in step S1621 (step S1621: YES), the processor 210 detects the movement speed of the position of the user in step S1622. The moving speed may be detected, for example, when the HMD sensors 1503 and 1504 detect the position and inclination of the HMD 120 and create motion detection data. For example, the processor 210 of the computer 200 detects the position of the HMD 120 at predetermined time intervals and calculates the speed of the HMD 120 based on the detection results, so that the moving speed of the user can be known.

The processor 210 may detect acceleration when the position of the user moves. The acceleration may be detected, for example, when the HMD sensors 1503 and 1504 detect the position and inclination of the HMD 120 and create motion detection data. For example, the processor 210 of the computer 200 detects the position of the HMD 120 at predetermined time intervals, calculates the moving speed of the HMD 120 based on these detection results, and calculates the acceleration from the amount of change in the moving speed per unit time. Good.

In step S1623, the processor 210 moves the position of the virtual viewpoint according to the movement of the detected position of the user. In step S1624, the processor 210 generates view image data for displaying the second view image according to the movement of the position of the virtual viewpoint. The second field-of-view image is a field-of-view image corresponding to the movement of the position of the virtual viewpoint, and is a field-of-view image in which the visibility of the field of view is lower than that of the first field-of-view image.

As described above, the movement of the user 5 may cause the user 5 to collide with furniture such as the desk 1505 and the bed 1506, walls (see FIG. 15), and the like arranged around the play area 1502. However, the second field-of-view image displayed according to the movement of the virtual viewpoint has lower visibility than the first field-of-view image, and it becomes difficult for the user 5 to grasp the situation in the virtual space. Since the user 5 is likely to be afraid to collide with surrounding obstacles, the user 5 can be urged to move carefully so that the moving speed does not become faster. When a real-time movement of the user 5 is required as in the battle royale game, the moving speed of the user 5 is likely to be high, and thus the second view image capable of suppressing the moving speed is particularly effective.

Since the higher the moving speed of the user, the higher the possibility of collision with furniture or the like in the real space, the processor 210 moves the position of the virtual viewpoint according to the movement of the position of the user and the moving speed, and further the second view image. The degree of reduction in the visibility of the field of view can be determined by the moving speed. For example, when the moving speed is the first speed and the second speed (the first speed<the second speed), the processor 210 may increase the degree of reduction in the visibility in the case of the second speed. it can.

Specifically, the visibility of the visual field image is reduced so that the visual field of the user 5 is narrowed as the moving speed of the user 5 (HMD 120) increases. When the field of view of the user 5 is narrowed in this way, the user 5 can only understand the situation within a narrower range than usual, and it becomes more difficult than usual to predict how the surrounding situation will change thereafter. As a result, the user 5 is more likely to collide with surrounding obstacles, and thus it is possible to prevent the user 5 from further increasing the moving speed.
Here, the visibility of the second field-of-view image may be reduced stepwise or continuously.

FIG. 17 is a diagram showing an example of the first field-of-view image.
In the example of FIG. 17, the first view image 1711 displays an obstacle object 1712 and an enemy character avatar 1713.

FIG. 18 is a diagram showing an example of the second field-of-view image with reduced visibility.
FIG. 18 is an example of the second view image 1811 in which the visibility is reduced by providing the mask area 1801 inside the outer peripheral edge of the first view image 1711. The shape of the mask area is not limited to this, and for example, the mask area may be set so that the non-mask area has a circular shape. The mask areas 1601 and 1701 may have a uniform color, the density may be decreased toward the inner side, the transparency may be increased toward the inner side, or another method is used. Good. That is, the method of reducing the visibility of the view image is not particularly limited as long as the user 5 can recognize the increased possibility of collision.

FIG. 19 is a schematic view showing an example of the second view image in which the visibility is further reduced as compared with the case of FIG. That is, when the moving speed of the user 5 is increased and the possibility of collision is further increased as compared with the case of displaying the second view image 1811 shown in FIG. 18, the mask area 1801 inside the outer peripheral edge of the second view image 1811 is displayed. 18 is larger than that of the mask region 1601 of FIG. 18 (that is, the visibility of the field of view is further reduced as compared with the case of FIG. 18), thereby further narrowing the field of view of the user 5.

As described above, according to the second view images 1811 and 1911 shown in FIGS. 18 and 19, the field of view depends on the possibility that the user 5 collides with an obstacle (furniture, wall, etc.) in the real space. By increasing the degree to which the visibility of the image is reduced, it is possible to easily suppress the increase in the moving speed of the user 5.

When detecting the acceleration when the position of the user 5 moves, the processor 210 determines whether the detected acceleration is the first acceleration or the second acceleration (first acceleration<second acceleration). In this case, it is possible to increase the degree of reduction in the visibility of the visual field.
The processor 210 may combine the moving speed and the acceleration of the position of the user 5 to determine the degree of reduction in the visibility of the visual field.

Here, in order to further enhance the safety of the user 5, a method for reducing the visibility of the field of view when the reference value of the possibility of collision (for example, the moving speed) reaches a predetermined threshold is shown in FIG. A method different from that in FIG. 19 may be switched or added.

In some embodiments, processor 210 may associate an object in virtual space as the first object. As the first object, for example, a structure such as a wall or a building, a natural object such as a tree or a rock, an object such as a giant or an enemy character such as a monster that becomes an obstacle for movement can be cited. The processor 210 updates the first field-of-view image to the second field-of-view image further including noise when the virtual viewpoint collides with the first object in a state where the moving speed at the time of moving the position of the user is equal to or more than the threshold value. You can Due to the noise, the user 5 can easily understand that the virtual viewpoint is in a position where it collides with the first object, and can prompt the user 5 to move so as to cancel this positional relationship.

FIG. 20 shows a second visual field image 2011 in which block noise 2003 is generated in the visual field area 1702 of the first visual field image 1711 (that is, the area surrounded by the mask area 1701). When the moving speed exceeds the threshold value and the possibility of colliding with the first object becomes higher than that in the case of FIG. 17, it is easier to prompt the user 5 to reduce the moving speed by the second view image 2011.

In an embodiment, the processor 210 may determine the moving speed of the position of the virtual viewpoint as the moving speed of the position of the user 5 multiplied by a first coefficient (first coefficient>1). If a sufficiently large play area 1602 cannot be secured, the size of the virtual space and the size of the play area 1602 do not correspond in a 1:1 relationship, and the size of the virtual space may become larger than the play area. In that case, the moving speed in the virtual space may be made faster than the moving speed in the play area 1602 by multiplying by the first coefficient so that the moving amount in the virtual space and the moving amount in the play area are balanced. The moving speed in the virtual space becomes faster than the actual moving speed of the user, that is, the moving speed that the user perceives through the visual field image becomes higher, and the actual moving speed of the user increases in accordance with the moving speed recognized in the visual field. However, even in this case, the second field-of-view image that reduces the visibility of the field of view can effectively suppress an increase in the moving speed of the user.

For example, when the virtual space corresponds to the play area 1502 set in the real space, and the size of the plane of the virtual space 11 is larger than the size of the play area 1502, the processor 210 determines the size of the play area 1502. The first coefficient can be determined according to the ratio of the size of the plane of the virtual space 11.

When the play area 1502 is sufficiently wide, the size of the plane of the virtual space 11 corresponding to the play area set in the physical space can be made to match the size of the play area. In this case, the moving speed of the position of the virtual viewpoint may be the same as the moving speed of the user 5 when moving the position. Thereby, the moving speed in the virtual space and the user's feeling of the moving speed can be matched.

(Constitution)
The technical features disclosed above can be summarized as follows.

(Structure 1)
According to one embodiment, a program is provided. The program defines, in the computer 200, a step of defining a virtual space 11 including a virtual viewpoint associated with the user 5, and a first view image corresponding to the view from the virtual viewpoint, and the head mounted device 120 associated with the user 5. In accordance with the movement of the position of the user 5 in the physical space, the step of moving the position of the virtual viewpoint according to the movement of the position of the user 5, and the movement of the position of the virtual viewpoint. , Updating the first field-of-view image to a second field-of-view image which is a field-of-view image corresponding to the movement of the position of the virtual viewpoint and whose visibility is lower than that of the first field-of-view image. program.

(Structure 2)
In (Structure 1), the step of causing the computer 200 to further execute the step of detecting the moving speed when the position of the user 5 moves, and the moving step includes the step of moving the virtual viewpoint according to the moving speed and the moving speed of the user 5. The degree of reduction in the visibility of the field of view in the second field-of-view image when the position is moved is larger when the moving speed is the second speed which is higher than the first speed than when the moving speed is the first speed.

(Structure 3)
In (Configuration 2), the computer 200 is further caused to execute the step of detecting the acceleration when the position of the user 5 moves, and the degree of reduction in the visibility of the field of view in the second field-of-view image is higher than that when the acceleration is the first acceleration. Is larger in the case of the second acceleration, which is faster than the first acceleration.

(Structure 4)
In any one of (Structure 1) to (Structure 3), the step of detecting the moving speed when the position of the user 5 moves, and the moving of the position of the virtual viewpoint according to the moving speed when the position of the user 5 moves The step of causing the computer 200 to further execute the step of determining the speed and the step of moving the step move the position of the virtual viewpoint at the moving speed of the position of the virtual viewpoint, and the moving speed of the position of the virtual viewpoint is the position of the user. The speed is faster than the moving speed when moving.

(Structure 5)
In (Configuration 4), the moving speed of the position of the virtual viewpoint is a speed obtained by multiplying the moving speed at the time of moving the position of the user 5 by a first coefficient (first coefficient>1).

(Structure 6)
In (Structure 5), the virtual space corresponds to the play area 1502 set in the real space, the size of the plane of the virtual space 11 is larger than the size of the play area 1502, and the virtual size corresponding to the size of the play area 1502. The computer 200 is further caused to execute the step of determining the first coefficient according to the ratio of the size of the plane of the space 11.

(Structure 7)
In any one of (Structure 1) to (Structure 3), the step of detecting the moving speed when the position of the user 5 moves, and the moving of the position of the virtual viewpoint according to the moving speed when the position of the user 5 moves The step of determining the speed and the step of further causing the computer 200 to move the step move the position of the virtual viewpoint at the moving speed of the position of the virtual viewpoint, and the virtual space 11 becomes a play area set in the real space. Correspondingly, the size of the plane of the virtual space 11 matches the size of the play area, and the moving speed of the position of the virtual viewpoint is the same as the moving speed of the position of the user 5.

(Structure 8)
In any one of (Configuration 1) to (Configuration 7), the second view image is an image in which the periphery of the view is masked.

(Configuration 9)
In any one of (Structure 1) to (Structure 7), the virtual space 11 includes the first object, and in the updating step, the moving speed at the time of moving the position of the user 5 is equal to or more than a threshold value, and the virtual viewpoint is When colliding with the first object, the first view image is updated to the second view image further including noise.

(Configuration 10)
According to certain embodiments, a method performed by computer 200 is provided. Method, defining a virtual space 11 including a virtual viewpoint associated with the user 5, and displaying a first view image corresponding to the view from the virtual viewpoint on the head mounted device 120 associated with the user 5. A step of detecting the movement of the position of the user 5 in the physical space, and a step of moving the position of the virtual viewpoint according to the movement of the position of the user 5.
According to the movement of the position of the virtual viewpoint, the first view image is updated to the second view image which is the view image according to the movement of the position of the virtual viewpoint and whose visibility is lower than that of the first view image. And a step of performing.

(Configuration 11)
According to one embodiment, an information processing device is provided. The information processing apparatus includes a memory 220 storing a program and a processor 210. The processor 210 reads the program and defines a virtual space including a virtual viewpoint associated with the user 5, and a view from the virtual viewpoint. According to the movement of the position of the user 5, the step of displaying the first view image corresponding to the user on the head mounted device 120 associated with the user 5, the step of detecting the movement of the position of the user 5 in the physical space, The step of moving the position of the virtual viewpoint and the visibility of the first view image corresponding to the movement of the position of the virtual viewpoint are the view images corresponding to the movement of the position of the virtual viewpoint and are more visible than the first view image. And a step of updating the second view image with reduced value.

2... Network, 5... User, 6... Avatar object, 11... Virtual space, 12... Center, 14... Virtual camera, 15... View area, 100... HMD system, 110... HMD set, 130... Monitor, 170... Microphone, 180... Speaker, 190... Sensor, 200... Computer, 210... Processor, 220... Memory, 230... Storage, 240... Input/output interface, 250... Communication interface, 300... Controller, 310... Grip, 320... Frame, 340, 350 370, 380... Button, 390... Analog stick, 410, 1503, 1504... HMD sensor, 420... Motion sensor, 430... Display, 510... Control module, 520... Rendering module, 530... Memory module, 540... Communication control module , 600... Server, 610... Processor, 620... Memory, 630... Storage, 640... Input/output interface, 650... Communication interface,... HMD sensor, 1511... View image, 1512... Obstacle object, 1513... Animal object, 1601, 1701, 1801... Mask area, 1802... View area, 1803... Block noise.

Claims (11)

On the computer,
Defining a virtual space that includes a virtual viewpoint associated with the user;
Displaying a first view image corresponding to the view from the virtual viewpoint on a head mounted device associated with the user;
Detecting the movement of the position of the user in the physical space,
Moving the position of the virtual viewpoint according to the movement of the position of the user,
In accordance with the movement of the position of the virtual viewpoint, the first view image is a view image corresponding to the movement of the position of the virtual viewpoint, and the visibility of the view is lower than that of the first view image. A program for executing the step of updating to a two-view image ,
The second field-of-view image is a field-of-view image in which the field of view is more restricted than the first field-of-view image.
Program . Causing the computer to further execute the step of detecting a moving speed when the position of the user moves,
The moving step moves the position of the virtual viewpoint according to the movement of the position of the user and the moving speed,
The degree of reduction in the visibility of the field of view in the second field of view image is greater when the moving speed is a second speed that is faster than the first speed than when the moving speed is the first speed. The program according to 1. Causing the computer to further execute the step of detecting the acceleration when the position of the user moves,
The degree of reduction in the visibility of the field of view in the second field of view image is greater in the case of the second acceleration in which the acceleration is faster than the first acceleration than in the case of the first acceleration. The listed program. Detecting a moving speed when the user moves the position,
Determining the moving speed of the position of the virtual viewpoint according to the moving speed of the position of the user when moving, and further causing the computer to execute the moving speed.
In the moving step, the position of the virtual viewpoint is moved at a moving speed of the position of the virtual viewpoint,
The program according to claim 1, wherein the moving speed of the position of the virtual viewpoint is faster than the moving speed of the position of the user when moving. The program according to claim 4, wherein the moving speed of the position of the virtual viewpoint is a speed obtained by multiplying the moving speed when the position of the user is moving by a first coefficient (first coefficient>1). The virtual space corresponds to the play area set in the physical space,
The size of the plane of the virtual space is larger than the size of the play area,
The program according to claim 5, further causing the computer to execute the step of determining the first coefficient according to the ratio of the size of the plane of the virtual space to the size of the play area. Detecting a moving speed when the user moves the position,
Determining the moving speed of the position of the virtual viewpoint according to the moving speed of the position of the user when moving, and further causing the computer to execute the moving speed.
In the moving step, the position of the virtual viewpoint is moved at a moving speed of the position of the virtual viewpoint,
The virtual space corresponds to the play area set in the physical space,
The size of the plane of the virtual space matches the size of the play area,
The program according to claim 1, wherein the moving speed of the position of the virtual viewpoint is the same as the moving speed of the position of the user when moving. The program according to claim 1, wherein the second view image is an image in which the periphery of the view is masked. The virtual space includes a first object,
In the updating step, when the virtual viewpoint collides with the first object in a state where the moving speed when the position of the user moves is equal to or more than a threshold value, the first view image further includes noise. The program according to any one of claims 1 to 8, which is updated to a two-view image. A computer implemented method comprising:
Defining a virtual space that includes a virtual viewpoint associated with the user;
Displaying a first view image corresponding to the view from the virtual viewpoint on a head mounted device associated with the user;
Detecting the movement of the position of the user in the physical space,
Moving the position of the virtual viewpoint according to the movement of the position of the user,
In accordance with the movement of the position of the virtual viewpoint, the first view image is a view image corresponding to the movement of the position of the virtual viewpoint, and the visibility of the view is lower than that of the first view image. and updating the 2 field of view image, only including,
The said 2nd field-of-view image is a field-of-view image with which the said field of view was restricted rather than the said 1st field-of-view image . A memory for storing a program and a processor,
The processor reads the program,
Defining a virtual space that includes a virtual viewpoint associated with the user;
Displaying a first view image corresponding to the view from the virtual viewpoint on a head mounted device associated with the user;
Detecting the movement of the position of the user in the physical space,
Moving the position of the virtual viewpoint according to the movement of the position of the user,
In accordance with the movement of the position of the virtual viewpoint, the first view image is a view image corresponding to the movement of the position of the virtual viewpoint, and the visibility of the view is lower than that of the first view image. Perform the steps of updating to the two-view image ,
The information processing device, wherein the second field-of-view image is a field-of-view image in which the field of view is restricted as compared with the first field-of-view image .

Images