KR20200120502A - Control System for display 360-degree image - Google Patents

Abstract

The present invention relates to a system for displaying and controlling a 360-degree image of a live-action version to display and control an omnidirectional (360-degree) image of a live-action version on a plurality of displays. More specifically, the present invention relates to the system for displaying and controlling 360-degree image comprising: a master terminal dividing a 360-degree image of a live-action version into a plurality of unit images and setting a plurality of unit areas based on the center of the 360-degree image, outputting a unit image included in a main unit area to a main display, and generating a control signal to output a unit image included in a neighboring peripheral unit area based on the main unit area to be outputted to at least one peripheral display; and a plurality of slave terminals outputting the peripheral unit image to a preset peripheral display when receiving the control signal from the master terminal.

Description

Control System for display 360-degree image}

The present invention relates to a 360-degree image display control system for displaying and controlling an omnidirectional (360-degree) image photographed on a plurality of displays.

Recently, as interest in VR (Virtual Reality) has increased and various personal photographing devices have been released, the production of 360-degree images in broadcasts and movies is increasing exponentially. These 360-degree images can be viewed not only on HMD (Head Mounted Display), but also on PCs, TVs, and smartphones.

The 360-degree video provides viewers with an experience in which they can enjoy an omnidirectional view. In particular, when viewing 360-degree content using multiple screens, it is possible to provide an immersive viewing experience with a wide angle of view.

As a patent document providing such a 360-degree image, there are Korean Patent Publication No. 2006-0032694 (hereinafter, Patent Document 1). The patent document 1 relates to a mobile communication terminal capable of displaying a three-dimensional image and a 360-degree image capable of implementing a three-dimensional image and a 360-degree image by providing a geomagnetic sensor and/or a compass sensor on one side of the terminal. In this case, Patent Document 1 cannot provide an image with a wide angle of view by displaying the image only in the corresponding terminal.

Meanwhile, in order to play a 360-degree image on multiple screens, contents of different view points must be displayed on each screen. Accordingly, the present applicant intends to provide a 360-degree image display control system capable of displaying a 360-degree image on a plurality of displays and controlling the displayed image.

Korean Patent Publication No. 2006-0032694 (published on April 18, 2006)

An object of the present invention is to divide and display a 360-degree image photographed at a specific theme place on a plurality of displays, and to control the playback speed and view direction of the displayed image through the body tilt detection of the master terminal. It is to provide an image display control system.

A 360-degree image display control system according to an embodiment of the present invention for achieving the above object divides a real-photographed 360-degree image into a plurality of unit images, and a plurality of units based on the center of the 360-degree image Control to set an area, but output a unit image included in the main unit area to the main display, and control to output the unit image included in the neighboring unit area adjacent to the main unit area on at least one peripheral display device It may include a master terminal generating a signal and a plurality of slave terminals outputting a corresponding peripheral unit image to a predetermined peripheral display when receiving the control signal from the master terminal.

In addition, the master terminal may determine the size of the unit region according to a person's viewing angle and the number of slave terminals, and determine the position of the unit region for each slave terminal corresponding to the playback time according to the relative position of each slave terminal. .

In addition, the master terminal may control a playback speed and a view direction of a 360-degree image displayed on a plurality of displays by sensing the inclination of the body.

When the X axis is an axis parallel to the reference plane when shooting, the Y axis is an axis perpendicular to the reference plane, and the Z axis is an axis corresponding to the shooting direction, the master terminal rotates clockwise or counterclockwise around the Z axis. The terminal can prevent image shaking by ignoring the rotation angle of the master terminal around the Z axis.

When the X-axis is an axis parallel to the reference plane when shooting, the Y-axis is an axis perpendicular to the reference plane, and the Z-axis is an axis corresponding to the shooting direction, the X-axis is centered so that the master terminal moves toward or away from the main display. When rotated, the master terminal can be quickly played back or reversely played at a set double speed.

When the X-axis is an axis parallel to the reference plane when shooting, the Y-axis is an axis perpendicular to the reference plane, and the Z-axis is an axis corresponding to the shooting direction, the X-axis is centered so that the master terminal moves toward or away from the main display. When rotated, the master terminal may move the position of the main unit area upward or downward.

When the X-axis is an axis parallel to the reference plane during shooting, the Y-axis is an axis perpendicular to the reference plane, and the Z-axis is an axis corresponding to the shooting direction, when the master terminal rotates around the Y-axis, the master terminal rotates the master terminal. It can be moved to the left or right of the main unit area according to the direction.

In addition, the master terminal and the plurality of slave terminals may receive the same 360-degree image from the server, and the plurality of slave terminals synchronize the 360-degree image according to the control signal of the master terminal and output the mirror to a corresponding peripheral display. .

In addition, the control signal, based on the playback time of the 360-degree image and the main display preset in the master terminal, may include location information of the surrounding unit region determined according to the relative positions of the peripheral displays set in each slave terminal. I can.

In addition, when an event occurs during playback of the 360-degree image, the master terminal may receive an input whether or not to display a corresponding event, and when a display is not input, skip the corresponding event to reproduce the skipped image.

In addition, the 360-degree image is a live-action image photographed under the theme of at least one of a tourist place, an exhibition place, a historical place, and an experience place, and may include an avatar providing an explanation of the image at the time of reproduction and a theme-related quiz. have.

In addition, when the theme image of the 360-degree image ends, a server for providing the theme-related quiz of the 360-degree image to the master terminal and the plurality of slave terminals in the form of a game may be further included.

As described above, the 360-degree image display control system of the present invention can provide an image with a wide angle of view to a plurality of viewers by controlling the synchronized image to be displayed on a plurality of displays.

In addition, by allowing the user to intuitively control the playback speed and the view direction through the body tilt of the master terminal, the user can control the speed and the view direction while continuously playing an image without interruption.

In addition, when an event occurs in a video captured while moving in a specific theme location, it can be skipped or played according to the user's selection, and the video is continuously played after the skip, so that no user manipulation is required.

In addition, it is possible to obtain a knowledge acquisition effect by providing an explanation of a specific theme place using an avatar, and providing a quiz in the form of a game at the end of the video.

1 is a view for explaining a schematic configuration of a 360-degree image display control system according to an embodiment of the present invention.
2 is a block diagram showing the configuration of the master terminal of FIG. 1.
3 is a block diagram showing the configuration of the slave terminal of FIG. 1.
4 is a diagram illustrating a 360-degree image according to an embodiment of the present invention.
5A and 5B are views for explaining a playback speed and a first view direction control according to an embodiment of the present invention.
6 is a diagram for describing a second direction view control according to an embodiment of the present invention.

The terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, and thus various equivalents that can replace them at the time of application It should be understood that there may be water and variations.

Hereinafter, prior to the description with reference to the drawings, matters that are not necessary to reveal the gist of the present invention, that is, known configurations that can be obviously added by those skilled in the art are not shown or specifically described. Make the note clear.

A 360-degree image display control system according to an embodiment of the present invention configures a multi-screen using a plurality of terminals and a plurality of displays, and provides a dynamic 360-degree image by controlling the image played back using a master terminal. System.

A 360-degree image according to an embodiment of the present invention may be a live-action image taken from all directions while moving from a specific place under the theme of a specific place, such as a tourist place, an exhibition place, a historical place, and an experience place.

1 is a view for explaining a schematic configuration of a 360-degree image display control system according to an embodiment of the present invention. Referring to FIG. 1, a 360-degree image display control system (hereinafter referred to as a control system) according to an embodiment of the present invention includes a master terminal 110, a plurality of slave terminals 120a and 120b, and a server 130. Including, for the reproduction of the image, each terminal 110 may be 1:1 matched to a plurality of display devices 10 to 12.

Here, the server 130 provides an app for controlling a 360-degree image display, and may provide a 360-degree image for each theme. Meanwhile, the number of slave terminals 120a and 120b is illustrated as two for understanding of description, but is not limited thereto. Also, the arrangement position of the display device may be changed.

The master terminal 110 and the slave terminals 120a and 120b receive 360-degree images for each theme from the server 130, and can install apps such as smart phones and tabbooks with apps that can control their playback, and display It can be a portable terminal equipped with a part (not shown).

At this time, the terminal may be set as a master or slave through the installed app. When it is set as a master, it can be operated as the master terminal 110, and when it is set as a slave, it can be operated as the slave terminals 120a and 120b.

2 is a block diagram showing the configuration of the master terminal of FIG. 1. 3 is a block diagram showing the configuration of the slave terminal of FIG. 1.

Referring to FIG. 2, the master terminal 110 may include a first setting unit 111, a sensing unit 112, a first control unit 113, and a first quiz providing unit 114. Referring to FIG. 3, the slave terminals 120a and 120b may include a second setting unit 121, a second control unit 122, and a second quiz providing unit 123.

The master terminal 110 generates a control signal for controlling the image output of the slave terminals 120a and 120b, and may control the plurality of displays 10 to 12 to provide synchronized images.

The first setting unit 111 may receive a master/slave setting, a matching display (main display) setting, a setting of the number of slave terminals, etc. from a user.

In addition, the setting unit 111 may receive information related to setting a display device matched to the slave terminal from each of the slave terminals 120a and 120b, and setting a location of a display device matched to the corresponding slave terminal based on the main display device. . Alternatively, the user may directly set the arrangement position by matching the slave terminals 120a and 120b and the display device.

Meanwhile, the slave terminals 120a and 120b may be set as slaves and become terminals providing a slave mode. The second setting unit 121 of the slave terminals 120a and 120b may receive a master/slave setting, a matching display setting (location, identification number, etc.) from a user.

In addition, the second setting unit 121 may provide the set display device and its identification number to the master terminal 110 set as a master using short-range communication or the like.

1, each terminal (110, 120a, 120b) is preferably positioned to face the matching display (10 to 12), the master terminal 110 and the main display 10 at the center of the arrangement It is preferred to be arranged.

The sensing unit 112 may detect the direction and degree (angle) of the body inclination of the master terminal 110 using a gyro sensor, an acceleration sensor, or the like. In this case, the detected tilt direction and angle may be used to control the playback speed and view direction of the image. Meanwhile, a description of this will be described in detail in the description of the first control unit 113 and the description of FIGS. 5 and 6.

The first control unit 113 sets a plurality of unit areas based on the center of the 360-degree image received from the server 130, and transfers the unit images included in the main unit area among the set unit areas to the main display 10. A control signal for controlling the output and outputting a unit image corresponding to a neighboring unit region based on the main unit region may be generated and transmitted to the preset slave terminals 120a and 120b. The 360-degree image may be composed of a plurality of unit images, and the unit image may be images captured by an omnidirectional camera as shown in FIG. 4.

4 is a diagram illustrating a 360-degree image according to an embodiment of the present invention. Referring to FIG. 4, a 360-degree image may be generated as a combined image by rendering a plurality of images captured using an omnidirectional camera.

Here, the X-axis may be viewed as an axis parallel to the reference plane during photographing, the Y-axis as an axis perpendicular to the reference plane, and the Z-axis as an axis corresponding to the photographing direction. In this case, the reference plane may be the ground, a virtual plane parallel to the ground, or a virtual inclined plane inclined compared to the ground.

Accordingly, when the master terminal 110 is disposed perpendicular to the reference plane, the Y axis vertically penetrates the upper surface of the master terminal 110, the Z axis vertically penetrates the front of the master terminal 110, and the X axis is the master. The side surface of the terminal 110 may be vertically penetrated.

When the master terminal 110 is a mobile phone such as a smartphone, a display unit (eg, LCD or OLED) of the master terminal 110 may be provided in front of the master terminal 110.

At this time, the first control unit 113 is based on the center of the 360-degree image (that is, the center of the front image that is a moving path when shooting), the unit area according to the viewing angle of the person and the number of slave terminals 120a, 120b. The size of (a to c) can be determined. In general, the widest viewing angle for a person is 180 degrees. However, at this time, the viewing angle may be set to an angle other than 180 degrees by the user of the master terminal 110.

That is, in the present invention, the unit region may be field-of-view information for determining unit images to be output to the plurality of displays 10 to 12.

In Fig. 4, the view angle is set to 180 degrees, and the first control unit sets the viewing angle at the center, and divides the viewing angle into the number of master terminals 110 and slave terminals 120a, 120b (three in Fig. 4). Areas a to c may be set, and a corresponding unit area may be set according to the position of the matching display devices 10 to 12. Accordingly, the angle of view (60 degrees in the case of FIG. 4) corresponding to each unit area may be set for each terminal 110, 120a, and 120b.

The first control unit 113 determines the image included in the set main unit region as an image to be output to the main display 10, and a playback time of the 360-degree image to be output and a main display unit preset in the master terminal 110 Based on (10), the position information of the surrounding unit area determined according to the relative positions of the displays 11 and 12 set in each slave terminal 120a, 120b (that is, the angle of view set based on the main unit area) is included. The control signal to be transmitted may be transmitted to the corresponding slave terminals 120a and 120b. In this case, the control signal may also include a synchronization signal.

The second controller 122 of the slave terminals 120a and 120b may receive the same 360-degree image as the master terminal 110 from the server 130. In addition, when receiving a control signal from the first control unit 113, the second control unit 122 may determine a corresponding unit image using position information of its unit region.

The first control unit 113 of the master terminal 110 and the second control unit 122 of the plurality of slave terminals 120a and 120b may synchronize 360-degree images and output mirrored images to a corresponding display. Accordingly, a 360 degree image corresponding to the viewing angle is displayed on the plurality of display devices 10 to 12, and a direction view and a playback speed of the displayed image may be converted according to the tilt of the body of the sensing unit 112.

5A and 5B are views for explaining a playback speed and a first view direction control according to an embodiment of the present invention. Referring to FIG. 5B, the master terminal 110 may control a playback speed and a view direction of a 360-degree image displayed on the displays 10 to 12 by sensing the inclination of the body.

In this case, as shown in FIG. 5A, the first control unit 113 may prevent the left and right shaking of the 360 degree image. That is, when the master terminal 110 rotates clockwise or counterclockwise around the Z axis, image shaking may occur. The first control unit 113 may receive an input from the sensing unit 112 of the rotation angles α and β at which the master terminal 110 rotates around the Z axis. At this time, the first control unit 113 of the master terminal 110 can prevent image shaking by ignoring the rotation angles α and β.

In this case, the size of the rotation angles α and β may vary depending on the design. For example, rotation angles α and β smaller than the reference angle may be ignored, and rotation angles α and β larger than the reference angle may be ignored. Alternatively, the rotation angle (α, β) outside the reference angle range or within the reference angle range may be ignored.

By preventing the image from being shaken as described above, it is possible to prevent the user from being dizzy due to the image viewing due to the image shaking.

Meanwhile, as shown in FIG. 5B, the master terminal 110 may be rotated around the X axis according to a user's manipulation or an operation of a driving device. As described above, the X-axis may pass through the side of the master terminal 110.

When the master terminal 110 rotates about the X axis, the rotation master terminal 110 may rotate between the Y axis and the Z axis.

At this time, the movement start position of the master terminal 110 may be a position in which the master terminal 110 is disposed so that the Y-axis vertically penetrates the upper surface of the master terminal 110.

When the master terminal 110 rotates about the X-axis toward the main display 11 at the starting position of the movement, the sensing unit 112 may detect the rotation of the master terminal 110. According to the detection of the rotation of the sensing unit 112, the first control unit 113 can quickly play the image at a set double speed. That is, the second sensing area b1 is for setting the reproduction speed of the image. In this case, as the master terminal 110 rotates toward the main display 11, the set double speed may increase.

In addition, the master terminal 110 may rotate around the X axis so that it moves away from the main display 11 at the start position of movement. Accordingly, the detection unit 112 detects the rotation of the master terminal 110, and according to the rotation detection of the detection unit 112, the first control unit 113 can reproduce the image in a first direction view, that is, in the opposite direction. have. That is, the first detection area a1 is for setting reverse reproduction of an image.

Meanwhile, the first sensing region a1 and the second sensing region b1 described above may be used for controlling the position of the unit region, not for controlling the reproduction speed and setting the reverse reproduction.

That is, as shown in FIG. 5B, when the master terminal 110 rotates about the X-axis toward the main display 11 at the starting position, the detection unit 112 detects the rotation of the master terminal 110. can do.

According to the rotation detection of the master terminal 110, the first control unit 113 can move the position of the main unit area (a) downward (direction 4 in FIG. 4), and the master terminal 110 is The unit image corresponding to the main unit area (a) may be controlled to be displayed. In this case, the more the master terminal 110 rotates toward the main display 11, the greater the change in the position of the main unit area a may increase.

In addition, as shown in FIG. 5B, when the master terminal 110 rotates around the X-axis so that it is away from the main display 11 at the starting position of the movement, the sensing unit 112 rotates the master terminal 110. Can be detected.

According to the rotation detection of the master terminal 110, the first control unit 113 can move the position of the main unit area (a) upward (direction No. 1 in FIG. 4), and the master terminal 110 is The unit image corresponding to the main unit area (a) may be controlled to be displayed. In this case, as the master terminal 110 is farther away from the main display 11, the change in the position of the main unit area b may increase.

In this way, the first sensing region a1 and the second sensing region b1 may be for changing the position of the main unit region a.

As the position of the main unit area (a) is changed, the master terminal 110 can control the slave terminals (120a, 120b) so that the slave unit areas (b, c) are moved by the position change of the main unit area (a). have. That is, as the main unit area a moves downward, the slave unit areas b and c may also move downward. In addition, as the main unit area (a) is moved upward, the slave unit areas (b, c) may also be moved upward.

Accordingly, a normal image can be displayed without inconsistency between the main unit area (a) and the slave unit area (b).

6 is a view for explaining a second direction view control according to an embodiment of the present invention. The second direction view control of FIG. 6 corresponds to movement of the main unit area (a) in the left and right directions (2, 3) in FIG. 4.

When the user wants to move the main unit area (a) to the right using the master terminal 110 (direction 2 in Fig. 4), the master terminal 110 is moved in the first direction around the Y axis as shown in Fig. 6 It can be rotated (for example, clockwise).

As the detection unit 112 senses this rotation of the master terminal 110, the first control unit 113 can move the main unit area a to the right, and the main unit area a moved to the right. The corresponding unit image can be controlled to be displayed.

In this case, as the rotation of the master terminal 110 increases, the main unit area a may move to the right.

In addition, when the user wants to move the main unit area (a) to the left by using the master terminal 110 (in the direction of 3 in FIG. 4), the master terminal 110 is provided around the Y-axis as shown in FIG. It can be rotated in two directions (for example, counterclockwise).

As the sensing unit 112 senses this rotation of the master terminal 110, the first control unit 113 may move the main unit area a to the left, and the main unit area a moved to the left. The corresponding unit image can be controlled to be displayed.

In this case, as the rotation of the master terminal 110 increases, the main unit area a may move to the left.

As the position of the main unit area (a) is changed, the master terminal 110 can control the slave terminals (120a, 120b) so that the slave unit areas (b, c) are moved by the position change of the main unit area (a). have. That is, as the main unit area a is moved to the left or right, the slave unit areas b and c may also be moved to the left or right. Accordingly, a normal image can be displayed without inconsistency between the main unit area (a) and the slave unit area (b).

The control direction setting of FIGS. 5A, 5B, and 6 may be set during app design and may be changed by an administrator.

Meanwhile, a 360-degree image according to an embodiment of the present invention may include various events (for example, performances, traditional games, viewing, etc.) generated when moving in a theme place. When an event occurs during playback of a 360-degree image, the first controller 113 receives a selection input from the user whether to display a corresponding event, and when a display is not selected, skips the event to continuously play the image after skipping. have.

When the event display is selected by the user, the first controller 113 may output a control signal to display the captured event image, synchronize, and mirror the output. In this case, a description of the event may be provided using an avatar in the provided 360-degree image. In addition to the event, a description of the scene at the time of playback may be provided as an avatar.

When the playback of the corresponding theme image is finished, the first control unit 113 provides learning contents related to the viewed theme image as a quiz-type game so that viewers can acquire knowledge. At this time, the game is provided to each of the first quiz providing unit 114 and the second quiz providing unit 123 through the app so that the viewer can solve each quiz, or provided through the first quiz providing unit 114 The first control unit 122 may control the quiz image to be output to the plurality of displays 10 to 12 in the same manner as the 360-degree image output.

In this case, the quiz image may be produced as one image included in the 360 degree image or may be provided in a separate game format.

As described above, the 360-degree image display control system according to an embodiment of the present invention can provide a 360-degree image to a user through a plurality of display devices even without a conventional head mounted display (HMD).

In addition, when the 360-degree image is displayed on the HMD, only the user wearing the HMD can view the 360-degree image, but the 360-degree image display control system according to the embodiment of the present invention displays the 360-degree image through a plurality of displays. Since it is provided to users, multiple people can view 360-degree images at the same time.

On the other hand, what has been described with reference to FIGS. 1 to 6 above is a description of only the main matters of the present invention, and as various designs are possible within the technical scope, the present invention is limited to the configuration of FIGS. 1 to 6. It is obvious that it is not.

110: master terminal 120a, 120b: slave terminal
130: server 111: first setting unit
112: sensing unit 113: first control unit
114: first quiz providing unit 121: second setting unit
122: second control unit 123: second quiz provider

Claims (12)

Dividing the live-action 360-degree image into a plurality of unit images, and setting a plurality of unit areas based on the center of the 360-degree image, and outputting the unit image included in the main unit area to the main display, and the main unit area A master terminal for generating a control signal for controlling to output a unit image included in a neighboring unit region based on at least one peripheral display unit; And
When receiving the control signal from the master terminal, a 360-degree image display control system comprising a plurality of slave terminals for outputting a corresponding peripheral unit image to a predetermined peripheral display.
The method of claim 1,
The master terminal,
A 360-degree image display, characterized in that the size of the unit area is determined according to a person's viewing angle and the number of slave terminals, and the position of the unit area for each slave terminal corresponding to the playback time is determined according to the relative position of each slave terminal. Control system.
The method of claim 1,
The master terminal,
A 360-degree image display control system, characterized in that for controlling a playback speed and a view direction of a 360-degree image displayed on a plurality of displays by detecting a tilt of the body.
The method of claim 3,
When the X axis is an axis parallel to the reference plane when shooting, the Y axis is an axis perpendicular to the reference plane, and the Z axis is an axis corresponding to the shooting direction,
When the master terminal rotates clockwise or counterclockwise around the Z axis,
The master terminal,
360-degree image display control system, characterized in that to prevent image shaking by ignoring the rotation angle rotated around the Z-axis by the master terminal.
The method of claim 3,
When the X axis is an axis parallel to the reference plane when shooting, the Y axis is an axis perpendicular to the reference plane, and the Z axis is an axis corresponding to the shooting direction,
When the master terminal rotates about the X axis so that it faces or moves away from the main display from the movement start position,
The master terminal is a 360-degree video display control system, characterized in that the fast playback or reverse playback at a set double speed.
The method of claim 1,
When the X axis is an axis parallel to the reference plane when shooting, the Y axis is an axis perpendicular to the reference plane, and the Z axis is an axis corresponding to the shooting direction,
When the master terminal rotates about the X axis so that it faces or moves away from the main display from the movement start position,
The master terminal 360 degree image display control system, characterized in that moving the position of the main unit area in an upward or downward direction.
The method of claim 1,
When the X axis is an axis parallel to the reference plane when shooting, the Y axis is an axis perpendicular to the reference plane, and the Z axis is an axis corresponding to the shooting direction,
When the master terminal rotates about a Y axis, the master terminal moves to the left or right of the main unit area according to the rotation direction of the master terminal.
The method of claim 1,
The master terminal and the plurality of slave terminals receive the same 360-degree image from the server,
Wherein the plurality of slave terminals synchronize 360-degree images according to a control signal of the master terminal and output mirroring to a corresponding peripheral display.
The method of claim 8,
The control signal,
A 360-degree image comprising location information of a peripheral unit region determined according to a relative position of peripheral displays set in each slave terminal based on a playback time of the 360-degree image and a main display device preset in the master terminal. Display control system.
The method of claim 1,
The master terminal,
When an event occurs during playback of the 360-degree image, whether or not to display a corresponding event is input, and when a display is not input, the event is skipped and the skipped image is played back.
The method of claim 9,
The 360-degree image,
A 360-degree image display control, characterized in that it is a live-action image taken under the theme of at least one of a tourist place, an exhibition place, a historical place, and an experience place, and includes an avatar that provides an explanation of the image at the time of playback and a theme related quiz system.
The method of claim 10,
And a server for providing the theme-related quiz of the 360-degree video to the master terminal and the plurality of slave terminals in the form of a game when the theme video of the 360-degree video is ended.

Images