JP2021074277A - Game program, information processing device and method - Google Patents

Abstract

To improve the visibility of a player character in a game simulating a competition realized by the AR technique.SOLUTION: In order to realize a game simulating a competition, a game program causes a computer including an imaging device and a display device to execute: an arrangement step (S112) of arranging a player character in a virtual space; a change step (S120) of changing a field angle of a virtual camera in accordance with the movement of the imaging device in a real space; and a display step (S122) of displaying a virtual image obtained by imaging the virtual space by the virtual camera so as to be superimposed on a real image obtained by imaging the real space by the imaging device. In the change step (S120), the field angle of the virtual camera becomes narrower as the virtual camera is closer to a region where the player character is arranged.SELECTED DRAWING: Figure 8

Description

The present invention relates to a technique for displaying a virtual object using an AR technique.

A technique for displaying a virtual object using an AR (Augmented Reality) technique is known. For example, Patent Document 1 describes a display device including a portable display and an imaging means attached so that the imaging direction is directed toward the back surface of the display surface of the portable display. The display device displays a composite image on which virtual objects are superimposed on the portable display against a background of a real image captured by the imaging means. When the display device is moved, the size of the virtual object displayed on the portable display changes.

Japanese Patent No. 3558104 (registered on May 28, 2004)

By the way, it is known to realize a game imitating a competition (for example, a soccer game) by using a computer. When such a game is realized by AR technology, it is conceivable that the game is operated while pointing the above-mentioned display device toward the player character arranged in the virtual stadium. In this case, the user performs an operation of bringing the above-mentioned display device closer to the player character in order to increase the display size of the player character. However, there is a limit to increasing the display size of the player by bringing the above-mentioned display device closer to the player character, and the visibility of the player character is not good.

One aspect of the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to improve the visibility of a player character in a game imitating a competition realized by AR technology.

In order to solve the above problems, in the game program according to one aspect of the present invention, in order to realize a game imitating a competition, a computer including an image pickup device and a display device is defined with a positional relationship with a real space. An arrangement step of arranging a player character in a virtual space in which a virtual camera is arranged at a position in the virtual space corresponding to the position of the image pickup device in the real space, and the real space. A change step of changing the angle of view of the virtual camera according to the movement of the image pickup device in the above step and a virtual image in which the virtual space is captured by the virtual camera are captured by the image pickup device in the real space. A display step of superimposing on a real image and displaying on the display device is executed, and in the change step, the closer the virtual camera is to the area where the player character is arranged, the narrower the angle of view of the virtual camera is. ..

It is a figure which shows typically how the user plays a soccer game in Embodiment 1 of this invention. It is a figure which shows typically an example of the virtual reality space in Embodiment 1 of this invention. It is a block diagram which shows an example of the hardware composition of the information processing apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows the functional structure of the information processing apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the virtual space in Embodiment 1 of this invention. It is a figure which shows an example of the angle of view in Embodiment 1 of this invention. It is a figure which shows another example of the angle of view in Embodiment 1 of this invention. It is a flowchart explaining the operation of the information processing apparatus which concerns on Embodiment 1 of this invention. It is a figure explaining a detailed example of the angle-of-view change processing which concerns on Embodiment 1 of this invention. It is a figure explaining a detailed example of the virtual image generation processing which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the field of view image in Embodiment 1 of this invention. It is a figure which shows an example of the field of view image for comparison with FIG. It is a figure which compares and explains the angle of view in FIG. 11 and FIG. It is a block diagram which shows the functional structure of the information processing apparatus which concerns on Embodiment 2 of this invention. It is a flowchart explaining the operation of the information processing apparatus which concerns on Embodiment 2 of this invention. It is a figure which shows an example of the field of view image in Embodiment 2 of this invention. It is a figure which shows another example of the visual field image in Embodiment 2 of this invention.

[Embodiment 1]
Hereinafter, the information processing apparatus 10 according to the first embodiment of the present invention will be described in detail.

<Overview of information processing device 10>
The information processing device 10 is a device that realizes a game imitating a competition by using AR (Augmented Reality) technology. In this embodiment, soccer is applied as a competition. Hereinafter, the game in the present invention will also be referred to as a soccer game.

FIG. 1 is a diagram schematically showing a state in which a user plays a soccer game using the information processing device 10. As shown in FIG. 1, the information processing device 10 is composed of a portable computer including a camera 14 and a touch panel 15 (display device 17). Assuming that the surface of the information processing device 10 provided with the display device 17 is the "front surface", the camera 14 is provided on the "back surface". The imaging direction of the camera 14 is from the "front surface" to the "back surface".

As shown in FIG. 1, the user holds the information processing device 10, points the camera 14 at the marker R2 on the table R1 existing in the real space, and starts playing the soccer game. The marker R2 is a disk-shaped object and has a predetermined pattern (a star mark pattern in the example of FIG. 2) on the surface thereof. The display device 17 displays a composite image in which a virtual image showing the virtual space is superimposed on the real image showing the real space. The virtual space is a virtual three-dimensional space in which virtual objects for playing a soccer game are arranged. The composite image displayed on the display device 17 represents a visual field image of the space in which the real space and the virtual space are combined. Hereinafter, the space in which the real space and the virtual space are combined will be referred to as a virtual reality space.

FIG. 2 is a diagram schematically showing an example of a virtual reality space. As shown in FIG. 2, in the virtual reality space, objects V1a to V1f forming a virtual soccer field existing in the virtual space and a plurality of player characters V2 are formed on the top plate of the table R1 existing in the real space. , Soccer ball V3 and so on. The field area F in the virtual soccer field is partitioned by two objects V1a indicating the touch line and two objects V1b indicating the goal line. Further, an object V1c indicating a center circle is arranged in the field area F. In the present embodiment, the object V1c indicating the center circle is arranged along the circumference of the marker R2. Further, in the field area F, an object V1d indicating various other lines such as a line that divides the penalty arc, the penalty area, and the goal area is arranged. Further, an object V1e indicating a goal and an object V1f indicating a corner pole are arranged around the field area F. The virtual objects constituting the virtual soccer field are not limited to the objects V1a to V1f, and may include other virtual objects. Hereinafter, when it is not necessary to distinguish and explain the objects V1a to V1f constituting the virtual soccer field, they are also simply described as the objects V1.

Further, each player character V2 and soccer ball V3 arranged in the virtual space move on the surface on which the virtual soccer field is arranged as the game progresses. The user plays a soccer game while moving the main body of the information processing device 10 so that the player character is included in the visual field image displayed on the touch panel 15 as the player character to be operated moves. When the user moves the main body of the information processing device 10, the range of the real space captured by the camera 14 changes, and the visual field image of the virtual real space displayed on the touch panel 15 also changes accordingly.

<Hardware configuration of information processing device 10>
FIG. 3 is a block diagram showing an example of the hardware configuration of the information processing device 10. The information processing device 10 is composed of a computer including a processor 11, a main memory 12, an auxiliary memory 13, a camera 14, a touch panel 15, and a position sensor 16. The touch panel 15 includes a display device 17 and an input device 18. The camera 14 is an example of the image pickup apparatus in the present invention. The processor 11, the main memory 12, the auxiliary memory 13, the camera 14, the touch panel 15, and the position sensor 16 are connected to each other via a bus. The computer constituting the information processing device 10 may further include a communication interface (not shown) capable of communicating with another device via a network.

As the processor 11, for example, a microprocessor, a digital signal processor, a microcontroller, or a combination thereof or the like is used.

As the main memory 12, for example, a semiconductor RAM or the like is used.

As the auxiliary memory 13, for example, a flash memory, an HDD, an SSD, a portable storage medium, or a combination thereof or the like is used.

The auxiliary memory 13 stores a game program and various programs according to the present embodiment to be executed by a computer constituting the information processing device 10. In the game program according to the present embodiment, in order to realize a game (soccer game) that imitates a competition, the positional relationship with the real space is defined in the computer including the image pickup device (camera 14) and the display device 17. In the virtual space, the placement step of placing the player character V2 in the virtual space where the virtual camera is placed at the position in the virtual space corresponding to the position of the image pickup device (camera 14) in the real space, and in the real space. The change step of changing the angle of view of the virtual camera according to the movement of the image pickup device (camera 14) and the virtual image in which the virtual space is captured by the virtual camera are converted into a real image in which the real space is captured by the image pickup device. In the change step, the display step of superimposing and displaying on the display device is executed, and the closer the virtual camera is to the area where the player character V2 is arranged, the narrower the angle of view of the virtual camera is. The processor 11 expands the game program and various programs stored in the auxiliary memory 13 on the main memory 12, and executes each instruction included in the expanded game program.

Further, the auxiliary memory 13 stores various data referred to by the processor 11 in order to operate the computer as the information processing device 10.

The camera 14 includes a lens and an image sensor, and receives light incident from the lens by the image sensor to generate an captured image. The captured image shows the surrounding state included in the range of the angle of view with reference to the direction in which the lens is directed (imaging direction). The angle of view is fixed or variable within a predetermined range depending on the characteristics of the lens. In the present embodiment, the lens included in the camera 14 is a single focus lens having a fixed angle of view.

The touch panel 15 is a device in which a display device 17 such as a liquid crystal display and an input device 18 such as a touch pad are integrally combined. The touch panel 15 detects a contact operation with the display device 17 displaying the image by the input device 18.

The position sensor 16 detects the position and tilt of the information processing device 10. For example, the position sensor 16 is composed of a gyro sensor, an acceleration sensor, a geomagnetic sensor, a GPS (Global Positioning System) receiver, or a combination thereof.

<Functional configuration of information processing device 10>
FIG. 4 is a block diagram showing a functional configuration of the information processing device 10. The information processing device 10 includes an arrangement unit 111, a change unit 112, a display unit 113, an AR control unit 114, and a game progress unit 115.

The arrangement unit 111 is a virtual space in which the positional relationship with the real space is defined, and the player character is placed in the virtual space in which the virtual camera is arranged at the position in the virtual space corresponding to the position of the camera 14 in the real space. Place V2. The detailed configuration of the arrangement unit 111 will be described later.

The changing unit 112 changes the angle of view of the virtual camera according to the movement of the camera 14 in the real space. Further, the changing unit 112 narrows the angle of view of the virtual camera as the virtual camera is closer to the area where the player character V2 is arranged. The detailed configuration of the change unit 112 will be described later.

The display unit 113 superimposes the virtual image captured by the virtual camera in the virtual space on the real image captured by the camera 14 and displays it on the display device 17. The detailed configuration of the display unit 113 will be described later.

The AR control unit 114 creates a virtual space that defines the positional relationship with the real space, and arranges the virtual camera in the generated virtual space. Here, arranging the virtual camera in the virtual space corresponds to setting the viewpoint in the virtual space. Further, the AR control unit 114 calculates various information for superimposing the virtual image on the real image so as to match the defined positional relationship. The various information includes information indicating the angle of view of the virtual camera. Here, the angle of view of the virtual camera is sometimes called a viewing angle. The various information calculated by the AR control unit 114 may include information indicating the angle of view itself, and includes parameters for calculating the angle of view (for example, the focal length and the width of the virtual camera). It may be. Hereinafter, "calculating (or acquiring) information indicating the angle of view" is also simply described as "calculating (or acquiring) the angle of view". Further, "changing the angle of view with reference to the information indicating the angle of view" is also simply described as "changing the angle of view". The various calculated information is referred to by other units (arrangement unit 111, change unit 112, display unit 113, and game progress unit 115). The detailed configuration of the AR control unit 114 will be described later.

The game progress unit 115 performs processing related to the progress of the soccer game. The game progress unit 115 advances the soccer game by operating the player character V2 based on the user's operation using the input device 18. The game progress unit 115 may proceed with the soccer game as a single-player game or as a multi-play game. In the case of a single-player game, the game progress unit 115 is an opponent team consisting of a user team consisting of a player character V2 that can be operated by the user and a player character V2 whose operation is determined by the game progress unit 115 regardless of the user's operation. To play against. Further, in the case of a multiplayer game, the game progress unit 115 is an opponent team composed of a user team composed of a player character V2 that can be operated by the user and a player character V2 that can be operated by another user who operates another information processing device 10. To play against.

(Detailed configuration example of AR control unit)
A detailed configuration example of the AR control unit 114 will be described. The AR control unit 114 has (1) a function of generating a virtual space, (2) a function of arranging a virtual camera (setting a viewpoint), and (3) a function of calculating the position of a specific object in the real space in the virtual space. Has. The AR control unit 114 can be configured by a known technique having these functions. Details of each function will be described below.

(1) Function for generating a virtual space The AR control unit 114 generates a virtual space that defines the positional relationship with the real space. FIG. 5 is a diagram showing an example of a virtual space generated by the AR control unit 114. As shown in FIG. 5, the AR control unit 114 sets the position of the real space where the information processing device 10 main body exists at the time when the functional block is activated as the origin P0, the horizontal plane in the real space as the XZ plane, and the real space. Generates a global coordinate system of virtual space whose vertical direction is the Y-axis direction. The global coordinates are also called world coordinates. The position where the information processing device 10 main body exists in the real space and the horizontal plane in the real space can be detected by the position sensor 16.

(2) Function for arranging a virtual camera Further, the AR control unit 114 arranges a virtual camera (sets a viewpoint) in the virtual space. Specifically, as shown in FIG. 5, the AR control unit 114 is located at the position P2 (X2, Y2, Z2) in the virtual space corresponding to the position of the information processing device 10 main body (camera 14) in the real space. , Place the virtual camera. Note that P2 (X2, Y2, Z2) indicates coordinates in the global coordinate system. Further, the AR control unit 114 sets the imaging direction of the virtual camera so as to face the direction d in the virtual space corresponding to the imaging direction of the camera 14 in the real space. The position and imaging direction of the camera 14 in the real space can be detected by the position sensor 16.

Further, the AR control unit 114 updates the arrangement of the virtual cameras according to the movement of the camera 14. The movement of the camera 14 means that one or both of the position and the imaging direction of the camera 14 in the real space change. When the user holds and moves the information processing device 10, one or both of the position and the imaging direction of the camera 14 in the real space change. The AR control unit 114 updates the position and imaging direction of the virtual camera in the virtual space so as to correspond to the position and imaging direction of the camera 14 in the real space.

Further, the AR control unit 114 calculates the angle of view of the virtual camera for superimposing the virtual image on the real image so as to match the positional relationship defined between the real space and the virtual space. For example, the angle of view of such a virtual camera is the same value as the angle of view of the camera 14. For example, the AR control unit 114 acquires the angle of view of the camera 14 stored in the auxiliary memory 13, and sets the acquired angle of view as the angle of view of the virtual camera.

(3) Function to calculate the position of a specific object in the real space in the virtual space The AR control unit 114 calculates the position of the specific object in the real space in the virtual space. Specifically, the AR control unit 114 detects a region including a specific object in the real image acquired from the camera 14, and analyzes the position of the object indicated by the detected region in the real space. Further, the AR control unit 114 calculates the position in the virtual space corresponding to the analyzed position in the real space. In the present embodiment, a marker R2 having a predetermined pattern (star mark in this example) on the surface is set as a specific object. In addition, the shape and size of a specific object are specified. In this example, the marker R2 is circular and its diameter is defined. Therefore, the AR control unit 114 corresponds to the position of the marker R2 in the real space based on the shape and size of the region having a predetermined pattern included in the real image and the shape and size defined by the marker R. Calculate the position in the virtual space. For example, in the example of FIG. 5, the points P (X1, Y1, Z1) in the global coordinate system are calculated as the positions of the markers R2 in the virtual space.

(Detailed configuration of the arrangement unit 111)
The arrangement unit 111 arranges a virtual object including a plurality of player characters V2 in the virtual space generated by the AR control unit 114. Specifically, the arrangement unit 111 acquires the global coordinates of the marker R2 calculated by the AR control unit 114, and sets a local coordinate system with the global coordinates as the origin. In the example of FIG. 5, the local coordinate system has the position P1 (X1, Y1, Z1) of the marker R2 as the origin, the plane parallel to the XZ plane as the xz plane, and the direction parallel to the Y-axis direction as the y-axis direction. Set. Further, as shown in FIG. 5, the arrangement unit 111 arranges various objects V1 constituting a virtual soccer field on the xz plane of the local coordinate system. The various objects V1 are arranged so that the center of the virtual soccer field is the origin of the local coordinate system. Further, the arrangement unit 111 arranges a plurality of player characters V2 in the field area F partitioned by the arrangement of various objects V1. Note that FIG. 5 shows a part of various objects V1 and a part of a plurality of player characters V2, and the illustration of the other part is omitted. Further, the arrangement unit 111 moves the position of each player character V2 in the local coordinate system as the soccer game progresses.

(Detailed configuration of change part 112)
The detailed configuration of the change unit 112 will be described. In the process of changing the angle of view of the virtual camera according to the movement of the camera 14 in the real space, the changing unit 112 narrows the angle of view of the virtual camera as the virtual camera is closer to the area where the player character V2 is arranged. .. Hereinafter, the process of changing the angle of view is also referred to as the angle of view changing process. Here, in the present embodiment, the field area F is applied as the “area in which the player character V2 is arranged”. That is, the changing unit 112 executes the angle of view changing process so that the closer the virtual camera is to the field area F, the narrower the angle of view of the virtual camera. The specific configuration for calculating the distance between the field area F and the virtual camera will be described later.

The angle of view changing process includes a process of narrowing the angle of view as the virtual camera approaches the field area F. Further, the image change process includes a process of widening the angle of view as the virtual camera moves away from the field area F.

Further, the changing unit 112 acquires the angle of view of the virtual camera for superimposing the virtual image on the real image so as to match the positional relationship with the real space and the virtual space, and changes the acquired angle of view. Here, "the angle of view of the virtual camera for superimposing the virtual image on the real image so as to match the positional relationship with the real space and the virtual space" is calculated by the AR control unit 114 as described above. In other words, the changing unit 112 acquires the angle of view of the virtual camera calculated by the AR control unit 114, and changes the acquired angle of view.

Here, when the AR control unit 114 is realized by a known technique, the auxiliary memory 13 is used to make the information processing device 10 function as the AR control unit 114 in addition to the game program according to the present embodiment described above. A known program is stored. By configuring the changing unit 112 to change the angle of view acquired from the AR control unit 114, the portability and reusability of the game program according to the present embodiment can be improved.

Further, the changing unit 112 applies the distance between the position of the virtual camera and the intersection where the straight line extending from the virtual camera in the imaging direction intersects the field area F as the distance between the field area F and the virtual camera.

Specifically, in the changing unit 112, the distance L between the virtual camera and the intersection where the straight line extending from the virtual camera in the imaging direction intersects the region where the player character V2 is arranged (field region F in the present embodiment) is set. The smaller the value, the narrower the angle of view of the virtual camera. In other words, the changing unit 112 does not perform the process of narrowing the angle of view of the virtual camera when the straight line extending from the virtual camera in the imaging direction does not intersect the field area F.

Specifically, the changing unit 112 calculates the position of the above-mentioned intersection by acquiring the position and the imaging direction of the virtual camera calculated by the AR control unit 114. In the example of FIG. 5, the changing unit 112 calculates the intersection P3 (X3, Y1, Z3) where the straight line extending from the position P2 of the virtual camera in the imaging direction d intersects the field region F. Further, the changing unit 112 calculates the distance L from the position P2 of the virtual camera to the intersection P3.

The changing unit 112 does not execute the process of narrowing the angle of view when the distance L between the position P2 of the virtual camera and the above-mentioned intersection P3 is larger than the threshold value L1, but executes it when the threshold value is L1 or less. Further, the changing unit 112 does not have to execute the process of narrowing the angle of view when the above-mentioned distance L is smaller than the threshold value L2 (L2 <L1). In this case, in other words, the changing unit 112 executes the process of narrowing the angle of view within the range where the distance L is L2 or more and L1 or less. Further, the changing unit 112 continuously changes the angle of view as the virtual camera approaches the field area F.

A specific example of the angle of view changing process in the range where the distance L is L2 or more and L1 or less will be described with reference to FIGS. 6 to 7. 6 and 7 are views of a virtual soccer field viewed from above in a virtual space, respectively. Note that, in FIGS. 6 and 7, a part of various objects V1 and a part of a plurality of player characters V2 are shown, and the other parts are not shown.

In FIG. 6, the virtual camera is arranged at the position P2 where the distance L = L1 to the intersection P3. At this time, the angle of view of the virtual camera is the angle of view r1 set by the AR control unit 114.

In FIG. 7, the virtual camera is arranged at the position P2 where the distance L = L2 to the intersection P3. At this time, the angle of view of the virtual camera is the minimum angle of view r2 (r2 <r1). As the minimum angle of view r2, a value smaller than the angle of view r1 is set in advance.

In this case, when the distance L is larger than the threshold value L1, the changing unit 112 sets the angle of view r1 of the virtual camera calculated by the AR control unit 114 as it is without changing it. Further, when the distance L is smaller than the threshold value L2, the changing unit 112 sets the angle of view of the virtual camera to the minimum angle of view r2. When the distance L is L2 or more and L1 or less, the changing unit 112 continuously (for example, linearly) changes the angle of view r1 with respect to the distance L1 to the angle of view r2 with respect to the distance L2. The continuous change in the angle of view may be a linear change or another continuous change. For example, the changing unit 112 may increase the rate of change of the angle of view as the virtual camera approaches the field area F.

In this way, the display size of the player character becomes larger than the amount by which the information processing device 10 (that is, the camera 14) is brought closer to the player character V2 because the virtual camera is brought closer to the field area F to a distance equal to or less than the threshold value L1. Only in cases. Further, when the virtual camera is separated from the field area F by the threshold value L1, the player character is displayed in a display size corresponding to the distance. Therefore, the change in display size becomes more natural for the user. Further, since the display size of the player character V2 is continuously changed by adjusting the distance from the virtual camera to the field area F, the user can display the player character V2 with a favorite display size. Further, when the rate of change of the angle of view is increased as the virtual camera approaches the field area F, the user can increase the display size of the player character V2 more rapidly as the virtual camera is closer to the player character V2.

(Detailed configuration of display unit 113)
The detailed configuration of the display unit 113 will be described. The display unit 113 generates a virtual image obtained by capturing a virtual space in which various objects V1 and player characters V2 are arranged by the arrangement unit 111 using a virtual camera to which the angle of view changed by the change unit 112 is applied. Further, the display unit 113 superimposes the generated virtual image on the real image generated by the camera 14 and displays it on the display device 17.

<Operation of information processing device 10>
The operation of the information processing apparatus 10 configured as described above will be described. The information processing device 10 is a virtual space in which the positional relationship with the real space is defined in order to realize a game imitating a competition, and is located at a position in the virtual space corresponding to the position of the camera 14 in the real space. The placement step of placing the player character in the virtual space where the virtual camera is placed, the change step of changing the angle of view of the virtual camera according to the movement of the camera 14 in the real space, and the virtual space being photographed by the virtual camera. A display step of superimposing the virtual image to be displayed on the real image captured by the camera 14 and displaying the virtual image on the display device 17 is executed, and the change step is an area in which the player character is arranged (the present embodiment). Then, the closer the virtual camera is to the field area F), the narrower the angle of view of the virtual camera.

FIG. 8 is a flowchart illustrating the operation of the information processing device 10.

In step S100, the game progress unit 115 executes a process of starting a soccer game. The process of starting includes, for example, a process of acquiring information indicating a user team and an opponent team, a process of acquiring information indicating a player character included in each team, and the like.

In step S102, the AR control unit 114 creates a virtual space in which the positional relationship with the real space is defined. Specifically, the AR control unit 114 generates a global coordinate system of the virtual space whose origin is the position of the information processing device 10 (that is, the camera 14) in the real space at the time when this step is executed. Further, the AR control unit 114 arranges the virtual camera at the origin of the global coordinates in a direction corresponding to the imaging direction of the camera 14.

In step S104, the AR control unit 114 rearranges the virtual camera in the virtual space based on the information related to the current arrangement of the virtual camera and the information obtained from the position sensor 16. Specifically, the AR control unit 114 rearranges the virtual camera at the position P2 in the virtual space in the imaging direction d based on the position and the imaging direction of the information processing device 10 in the real space. After that, the AR control unit 114 updates the arrangement of the virtual cameras as the camera 14 moves. Further, the AR control unit 114 sets the angle of view of the camera 14 as the angle of view of the virtual camera.

In step S106, the AR control unit 114 calculates the position P1 of the marker R2 existing in the real space in the virtual space.

In step S108, the game progress unit 115 executes a process of advancing the soccer game. The process of proceeding includes, for example, a process of generating a local coordinate system with the position P1 of the marker R2 as the origin, a process of generating a world coordinate conversion matrix for converting local coordinates into global coordinates (also referred to as world coordinates), and a process of generating a world coordinate conversion matrix. The process of updating the movement destinations of the player character V2 and the soccer ball V3 in response to the user's operation is included.

In step S110, the arrangement unit 111 arranges various objects V1 constituting a virtual soccer field in the virtual space. Specifically, the arrangement unit 111 arranges various objects V1 on the xz plane of the local coordinate system.

In step S112, the arrangement unit 111 arranges the player character V2 and the like in the virtual space. Specifically, the arrangement unit 111 has a plurality of player characters V2, soccer ball V3, etc. in the field area F partitioned by the object V1 arranged on the xz plane of the local coordinate system according to the progress of the game in step S108. To place. In other words, the arrangement unit 111 updates the local coordinates in the virtual space such as the player character V2 and the soccer ball V3.

In step S114, the changing unit 112 acquires the angle of view of the virtual camera calculated by the AR control unit 114.

In step S116, the changing unit 112 acquires the distance L between the position P2 of the virtual camera and the intersection P3.

In step S118, the changing unit 112 determines whether or not the angle of view changing condition is satisfied. The angle of view change condition is a condition that the distance L acquired in step S116 is equal to or less than the threshold value L1 and is equal to or greater than the threshold value L2. If No in step S118, the process of step S122, which will be described later, is executed. If Yes in step S118, the process of the next step S120 is executed.

In step S120, the changing unit 112 changes the angle of view so that the closer the distance L between the position P2 of the virtual camera and the intersection P3 is, the narrower the angle of view is. When the distance L acquired in the current processing flow is smaller than the distance L acquired in the previous processing flow, the virtual camera is closer to the field area F than the previous time. In this case, the changing unit 112 makes the angle of view narrower than the previous time. On the other hand, when the distance L acquired in the current processing flow is larger than the distance L acquired in the previous processing flow, the virtual camera is farther from the field area F than the previous time. In this case, the changing unit 112 makes the angle of view wider than the previous time. A detailed example of the processing of the step will be described later.

In step S122, the display unit 113 displays the real image on which the virtual image captured in the virtual space is superimposed on the display device 17 by using the set angle of view or the changed angle of view. For example, the display unit 113 may (1) generate an image in which a virtual image and a real image are combined and display it on the display device 17, or (2) generate a virtual image without combining with the real image in reality. It may be superimposed on the image and displayed on the display device 17. A detailed example of the step will be described later.

In step S124, the game progress unit 115 determines whether or not the predetermined time has elapsed. If No in step S124, the process of step S124 is executed again. That is, the process of step S124 is repeatedly executed until it is determined to be Yes. If Yes in step S124, the information processing apparatus 10 repeats the process from step S104. Here, as an example of the predetermined time, 1/30 second can be mentioned. In this case, 30 images are generated and displayed per second. However, the predetermined time is not limited to this.

<Detailed example of angle of view change processing>
FIG. 9 is a diagram schematically showing a detailed example of the angle of view changing process in step S120. In this example, the changing unit 112 acquires the width and focal length of the virtual camera as information indicating the angle of view from the AR control unit 114, and changes the angle of view of the virtual camera by changing the acquired focal length. .. Specifically, the changing unit 112 executes the angle of view changing process of the virtual camera for each of the angle of view on the X axis and the angle of view on the Y axis. Here, the X-axis and the Y-axis are coordinate axes in a view coordinate system in which the position of the virtual camera is the origin and the imaging direction is the Z-axis direction.

Specifically, first, the changing unit 112 acquires the width (ImageResolutionX) and focal length (FocalLengthXB) of the virtual camera on the X-axis shown in the schematic diagram 9001 from the AR control unit 114. Further, the changing unit 112 applies the acquired width (ImageResolutionX) and focal length (FocalLengthXB) of the virtual camera and the focal length adjustment value X to the formula (1) shown in the calculation formula 9003 after the change. The focal length XA of is calculated. The “FocalLengthXB * adjustment value X” in the equation (1) represents the adjusted focal length (FocalLengthXA) shown in the schematic diagram 9001. In this way, the angle of view XB when the focal length is (FocalLengthXB) on the X-axis is changed to the angle of view XA by changing the focal length to (FocalLengthXA).

Similarly, the changing unit 112 acquires the width (ImageResolutionY) and focal length (FocalLengthYB) of the virtual camera on the Y axis shown in the schematic diagram 9002 from the AR control unit 114. Further, the changing unit 112 applies the acquired width (ImageResolutionY) and focal length (FocalLengthYB) of the virtual camera and the focal length adjustment value Y to the formula (2) shown in the calculation formula 9003, so that after the change. The focal length YA of is calculated. The “FocalLength YB * adjustment value Y” in the equation (2) represents the adjusted focal length (FocalLength YA) shown in the schematic diagram 9002. In this way, the angle of view YB when the focal length is (FocalLength YB) on the Y axis is changed to the angle of view YA by changing the focal length to (FocalLength YA).

The adjustment value X and the adjustment value Y are determined according to the game progress process. In this example, the adjustment value X and the adjustment value Y are values larger than 1. That is, the changing unit 112 narrows the angle of view by increasing the focal length. The adjustment value X and the adjustment value Y are not limited to values larger than 1. For example, the adjustment value X and the adjustment value Y may be set to values larger than 0 and smaller than 1. In this case, the changing unit 112 widens the angle of view by shortening the focal length.

The adjustment value X and the adjustment value Y may be the same value. In this case, the angle of view on the X-axis and the angle of view on the Y-axis are changed at the same rate. However, the adjustment value X and the adjustment value Y may be different values. The changing unit 112 appropriately sets a parameter such as an aspect ratio shown in FIG. 10 described later, an adjustment value X, and a part or all of the adjustment value Y, thereby setting an angle of view on the X axis and an angle of view on the Y axis. May be controlled separately.

<Detailed example of virtual image generation processing>
A detailed example of the virtual image generation process in step S122 will be described with reference to FIG. Here, an example of a process for generating an image obtained by synthesizing a virtual image and a real image will be described. In step S122, the display unit 113 generates a projection coordinate transformation matrix with reference to the angle of view changed in step S120. The projection coordinate transformation matrix is a transformation matrix used in the process of generating a virtual image, and is calculated according to the angle of view of the virtual camera.

FIG. 10 is a diagram schematically illustrating an example of a projection coordinate transformation matrix. The project coordinate transformation matrix is generated according to the projection method. Here, an example of the project coordinate transformation matrix when perspective projection is applied is shown. Perspective projection is a projection method in which objects of the same size are projected larger as they are closer to the virtual camera.

As shown in FIG. 10, the display unit 113 generates the projection coordinate transformation matrix 1001. The projection coordinate transformation matrix 1001 is a 4-by-4 matrix. The 1-by-1 component in the projection coordinate transformation matrix 1001 is calculated by the formula (3) shown in the formula 1002. Further, the 2-by-2 component is calculated by the equation (4). Further, the 3-by-3 component is calculated by the equation (5). Further, the 4-row 3-column component is calculated by the equation (6). Further, 1 is applied as a 3-row 4-column component. Further, 0 is applied to other components in the projection coordinate transformation matrix 1001. Note that aspect in equation (3) indicates the aspect ratio applied to the virtual image. Further, near in the equations (5) and (6) indicates the distance from the virtual camera to the front surface of the clip space, and far indicates the distance from the virtual camera to the rear surface of the clip space. The clip space represents a space imaged by a virtual camera.

A detailed example of the process of generating a virtual image using the projection coordinate transformation matrix generated in this way will be described. First, the display unit 113 transforms the world coordinates and views the positions in the local coordinate system such as various objects V1, player character V2, soccer ball V3, etc. that constitute a virtual soccer field arranged in the virtual space. The coordinate transformation and projection coordinate transformation processes are executed in this order. The world coordinate transformation is a process of converting the local coordinate system into the global coordinate system, and the world coordinate transformation matrix calculated in step S108 is used. The view coordinate transformation is a process of transforming the global coordinate system into a view coordinate system with the position of the virtual camera as the origin and the imaging direction as the depth direction, and a view coordinate transformation matrix is used. The display unit 113 generates a view coordinate transformation matrix based on the position and imaging direction of the virtual camera acquired from the AR control unit 114. The projection coordinate transformation is as described above, and the projection coordinate transformation matrix calculated with reference to the angle of view as described above is used. Further, the display unit 113 attaches the real image generated by the camera 14 to the billboard as a texture. A billboard is a plate-shaped object placed in a virtual space so as to face the front of a virtual camera. The display unit 113 generates an image in which a virtual image and a real image are combined by rendering various objects V1, a player character V2, a soccer ball V3, a billboard, and the like at the positions whose coordinates have been converted in this way.

<Example of field image>
FIG. 11 is a diagram showing an example (concrete example) of the field of view image displayed on the display device 17. The visual field image G1 shown in FIG. 11 is a virtual image generated by performing a process of narrowing the angle of view of the virtual camera and superimposed on the real image.

FIG. 12 is a diagram showing an example (comparative example) of a field image for comparison with FIG. In the field image G9 shown in FIG. 12, when the arrangement of the virtual cameras is the same as in FIG. 11, the virtual image generated without changing the angle of view of the virtual camera is superimposed on the real image. In FIG. 12, both the real image and the virtual image are captured at an angle of view r1.

In FIGS. 11 and 12, the field images G1 and G9 include a player character V2, a soccer ball V3, an object V1c indicating a center circle, and a marker R2, respectively. The player character V2, the soccer ball V3, and the object V1c are included in the virtual image. The marker R2 is included in the real image. In both of the field images G1 and G9, the display device is operated by moving the main body of the information processing device 10 so that the virtual camera is brought closer to the player character V2 in order to display the player character V2 to be operated in a larger display size. It is displayed on 17. In addition, such a user's operation will be described below as simply an operation of bringing the user closer.

FIG. 13 is a diagram for comparing and explaining the angles of view in FIGS. 11 and 12. As shown in FIG. 13, the field image G1 (FIG. 11), which is a specific example of the present embodiment, is set to an angle of view r3 (r3 <r1) in a real image captured by the camera 14 having an angle of view r1. It is a superposition of virtual images captured by a virtual camera. On the other hand, in the field image G9 (FIG. 12), which is a comparative example, a virtual image captured by a virtual camera set to the same angle of view r1 is added to a real image captured by the camera 14 having an angle of view r1. It is a superposition.

The player character V2, the soccer ball V3, and the object V1c showing the center circle included in the field image G1 (FIG. 11) are zoomed in comparison with these objects included in the field image G9 (FIG. 12). As described above, in the comparative example, even if the user performs an operation of approaching, the display size of the player character V2 is increased only by the amount of approaching. On the other hand, in the specific example according to the present embodiment, when the user performs an operation of bringing the player closer, the display size of the player character V2 becomes larger than the amount of the approach.

In the field image G1, the angle of view r1 of the camera 14 that captured the real image is different from the angle of view r3 used as a parameter when calculating the projection transformation matrix used to generate the virtual image. Therefore, the original positional relationship between the real space and the virtual space is not maintained. For example, the object V1c indicating the center circle that should have been along the circumference of the marker R2 is not along the circumference. However, even if the positional relationship between the real space and the virtual space is not maintained once, it will be aligned again when the virtual camera moves away from the field area F by the threshold value L1 or more. Further, since the user performs the approaching operation as described above in order to increase the display operation of the player character V2, there is little discomfort even if the player character is zoomed more than the amount of the approaching operation. Therefore, even if the positional relationship between the real image and the virtual image is not temporarily maintained, there is a great merit that the display size of the player character V2 increases without discomfort.

<Effect of this embodiment>
As described above, according to the present embodiment, when the user operates the information processing device 10 so as to bring the virtual camera closer to the player character in order to increase the display size of the player character arranged in the virtual space. The angle of view of the virtual camera becomes narrower. Therefore, the display size of the player character becomes larger than the amount that the virtual camera approaches the player character. As a result, the present embodiment can improve the visibility of the player character in the soccer game realized by the AR technology.

[Embodiment 2]
The information processing device 10A according to the second embodiment of the present invention will be described below. The information processing device 10A is a device that realizes a soccer game by using AR technology, like the information processing device 10 according to the first embodiment. For convenience of explanation, the members having the same functions as the members described in the first embodiment are designated by the same reference numerals, and the description thereof will not be repeated.

<Functional configuration of information processing device 10A>
FIG. 14 is a block diagram showing a functional configuration of the information processing device 10A. Since the outline of the information processing apparatus 10A and an example of the hardware configuration are as described with reference to FIGS. 1 to 3 in the first embodiment, detailed description will not be repeated. The information processing device 10A includes an arrangement unit 111, a change unit 112A, a display unit 113, an AR control unit 114, and a game progress unit 115.

Since the configurations of the arrangement unit 111, the display unit 113, the AR control unit 114, and the game progress unit 115 are as described in the first embodiment, detailed description will not be repeated.

The changing unit 112A changes the size of the player character V2 in the virtual space according to the movement of the camera 14 in the real space. Further, the change unit 112A increases the size of the player character in the virtual space as the virtual camera is closer to the area where the player character V2 is arranged. In the present embodiment as well, the field area F is applied as the "area in which the player character V2 is arranged" as in the first embodiment.

Hereinafter, the process of expanding the size of the player character V2 in the virtual space as the virtual camera is closer to the field area F is also simply described as a size change process. The size change process includes a process of increasing the size of the player character V2 in the virtual space as the distance L becomes smaller. Further, the size change process includes a process of reducing the size of the player character V2 in the virtual space as the distance L increases.

For example, the changing unit 112A may change the size of each player character V2 arranged in at least the angle of view of the virtual camera among the plurality of player characters V2 arranged in the virtual space in the virtual space.

Further, for example, the changing unit 112A may change the size of a specific player character V2 in the virtual space among the plurality of player characters V2 arranged in the virtual space. The specific player character V2 may be, for example, a player character V2 designated by a user operation (for example, a tap operation) or the like. Further, the specific player character V2 may be a player character V2 arranged on a straight line extending from the position of the virtual camera in the imaging direction.

Further, the change unit 112A increases the size of the player character V2 in the virtual space as the distance L between the virtual camera and the intersection where the straight line extending from the virtual camera in the imaging direction intersects the field area F is smaller. In other words, the change unit 112A does not perform the size change process when the straight line extending from the virtual camera in the imaging direction does not intersect the field area F. Since the details of the process of calculating the distance L from the position P2 of the virtual camera to the intersection P3 are as described with reference to FIG. 5 in the first embodiment, the detailed description will not be repeated.

Further, the change unit 112A does not execute the size change process when the distance L between the position P2 of the virtual camera and the above-mentioned intersection P3 is larger than the threshold value L1, but executes the size change process when the threshold value is L1 or less. Further, the change unit 112A does not have to execute the size change process when the distance L between the virtual camera and the above-mentioned intersection P3 is smaller than the threshold value L2 (L2 <L1). In this case, in other words, the change unit 112A executes the size change process in the range where the distance L is L2 or more and L1 or less.

Further, the changing unit 112A continuously changes the size of the player character V2 in the virtual space as the virtual camera approaches the field area F. In this case, the changing unit 112A continuously increases the magnification of the corresponding player character V2 for the size determined in the virtual space from the magnification n1 (n1 = 1) for the distance L1 to the magnification n2 (n2> n1) for the distance L2. (For example, linearly). The continuous change in size in the virtual space may be a linear change or another change. For example, the changing unit 112A may increase the rate of change of the above-mentioned magnification as the virtual camera approaches the field area F.

<Operation of information processing device 10A>
The operation of the information processing apparatus 10 configured as described above will be described. FIG. 15 is a flowchart illustrating the operation of the information processing device 10A.

From steps S100 to S116, the information processing device 10A operates in the same manner as the information processing device 10 according to the first embodiment.

In step S118A, the changing unit 112A determines whether or not the size changing condition is satisfied. Here, the size change condition is a condition that the distance L acquired in step S116 is equal to or less than the threshold value L1 and is equal to or greater than the threshold value L2. If No in step S118A, the process of step S122, which will be described later, is executed. If Yes in step S118A, the process of the next step S120A is executed.

In step S120A, the changing unit 112A performs a size changing process so that the closer the distance L between the position P2 of the virtual camera and the intersection P3 is, the larger the size of the player character V2 in the virtual space is. When the distance L acquired in the current processing flow is smaller than the distance L acquired in the previous processing flow, the virtual camera is closer to the field area F than the previous time. In this case, the changing unit 112A enlarges the size of the player character V2 in the virtual space from the previous time. On the other hand, when the distance L acquired in the current processing flow is larger than the distance L acquired in the previous processing flow, the virtual camera is farther from the field area F than the previous time. In this case, the changing unit 112A makes the size of the player character V2 in the virtual space smaller than the previous time.

From steps S122 to S124, the information processing device 10A operates in the same manner as the information processing device 10 according to the first embodiment. This completes the description of the operation of the information processing device 10A.

<Example of field image>
FIG. 16 is a diagram showing an example of a field image displayed on the display device 17. In the field image G1A shown in FIG. 16, the size of each player character V2 arranged at least within the angle of view of the virtual camera is enlarged in the virtual space. FIG. 17 is a diagram showing another example of the field image displayed on the display device 17. In the field image G1B shown in FIG. 17, the size of the specific player character V2 in the virtual space is enlarged.

<Effect of this embodiment>
According to the present embodiment, when the user operates the information processing device 10 to bring the virtual camera closer to the player character in order to increase the display size of the player character arranged in the virtual space, the player character is virtual. The size in space is automatically expanded. Therefore, the display size of the player character becomes larger than the amount that the virtual camera approaches the player character. As a result, the present embodiment can improve the visibility of the player character in the soccer game realized by the AR technology.

[Modification 1]
In each of the above-described embodiments, an example of realizing a soccer game imitating soccer has been described. However, each embodiment can be modified to apply not only soccer but also other sports as the competition in the present invention. Examples of other competitions include, for example, baseball, rugby, and the like, but the competition is not limited to this, and any competition in which athletes move on the stadium may be used.

As another competition, a competition such as soccer in which the ratio of the player height to the field size is relatively small is preferable.

For example, according to the "Law of the Game 2018/19" issued by the Japan Football Association, the length of the long side (touch line) of the soccer field is 90 to 120 meters. Assuming that the height of the athlete is about 1 to 2.5 meters, the ratio to the length of the touch line is about 0.0083 to 0.0278. On the other hand, for example, according to the "2018 Basketball Competition Rules" issued by the Japan Basketball Association, the length of the long side (vertical) of the basketball court is 28 meters. Assuming that the height of the athlete is about 1 to 2.5 meters, the ratio to the length of the touch line is about 0.0357 to 0.0893. Thus, in soccer, the ratio of player height to field size is smaller than in basketball.

When realizing games that imitate these competitions, if the soccer field and basketball court placed in the virtual space are approximately the same size, the size of the soccer game player character in the virtual space is larger than that of the basketball game player character. It becomes smaller. Therefore, even if the virtual camera is sufficiently close to the player character, if the angle of view change process or the size change process in each embodiment is not performed, the display size of the player character is smaller in the soccer game than in the basketball game, and the visibility is visible. Is not good.

As described above, based on basketball as an example, sports such as soccer, baseball, and rugby are competitions in which the ratio of player height to field size is relatively small. In a game that imitates a competition in which the ratio of the player height to the field size is relatively small, the display size of the player character V2 is sufficiently large from the viewpoint of user visibility if the display size is increased correspondingly as the virtual camera approaches. In many cases I can't say it.

In this modification, the visibility of the player character can be improved even in a game in which the ratio of the player height to the field size is relatively small by performing the angle of view change process or the size change process.

[Modification 2]
In each embodiment, the changing unit 112 and the changing unit 112A have described an example in which the angle of view or the size of the player character V2 in the virtual space is continuously changed. Not limited to this, the changing unit 112 and the changing unit 112A may gradually change the angle of view or the size of the player character V2 in the virtual space. For example, when the distance L is larger than the threshold value L1, the changing unit 112 applies the angle of view r1 acquired from the AR control unit 114, and when the distance L is equal to or less than the threshold value L1, the preset angle of view r4 (r4). <R1) may be applied. Further, for example, the changing unit 112A applies the magnification n1 = 1 when the distance L is larger than the threshold value L1 to the size predetermined for the player character, and is preset when the distance L is equal to or less than the threshold value L1. The magnification n2 (n2> n1) may be applied.

[Modification 3]
In each embodiment, the change unit 112 and the change unit 112A have described an example in which the closer the virtual camera is to the field area F, the narrower the angle of view of the virtual camera or the size change process is performed. Not limited to this, the changing unit 112 and the changing unit 112A perform a process of narrowing the angle of view or a process of resizing the outside of a predetermined area including a virtual stadium in which the player character competes in the virtual space. If it is in, it may not be executed, and if it is inside, it may be executed.

Here, the predetermined region may be a plane region including the field region F. Specifically, such a predetermined region may be a rectangular region in which the four sides of the field region F are expanded by a predetermined margin, or may be a substantially elliptical region including the field region F.

Further, the predetermined region may be a three-dimensional space region having a plane including the field region F as the bottom surface. Specifically, such a predetermined region may be a substantially hemispherical space region including the field region F on the bottom surface, or a substantially rectangular parallelepiped space region including the field region F on the bottom surface. ..

In this modification, the display size of the player character V2 becomes larger than the amount by which the information processing device 10 (that is, the camera 14) is brought closer to the player character V2 only when the virtual camera is inside the predetermined area. Further, when the virtual camera is outside the predetermined area, the player character V2 is displayed in a display size corresponding to the distance. Therefore, the change in display size becomes more natural for the user.

[Other variants]
In each embodiment, an example in which the camera 14 included in the information processing apparatus 10 includes a single focus lens has been described. Not limited to this, each embodiment can be modified so that the camera 14 includes a zoom lens. In such a configuration, the angle of view of the camera 14 changes. In this case, the AR control unit 114 sets the angle of view of the virtual camera in conjunction with the change in the angle of view of the camera 14. Even in this case, the changing unit 112 in the first embodiment acquires the angle of view of the virtual camera set by the AR control unit 114 in conjunction with the change in the angle of view of the camera 14, and changes the acquired angle of view. do it.

Further, in the first embodiment, it has been described that the positional relationship between the real space and the virtual space is temporarily not maintained due to the different angles of view of the camera 14 and the virtual camera. However, the first embodiment can be modified so as to change the angle of view of the camera 14 in conjunction with the change of the angle of view of the virtual camera. As a result, the positional relationship between the real space and the virtual space is maintained. That is, in this modification, the changing unit 112 executes the angle-of-view changing process so that the closer the virtual camera is to the field area F, the narrower the angle of view of the virtual camera, and the changing unit 112 changes the angle of view of the camera 14. Change to the same value as the angle of view of. In this case, it is assumed that the information processing device 10 has an angle of view control function for controlling the angle of view of the camera 14 without any user operation. If the camera 14 is provided with a zoom lens, the angle of view control function controls the camera 14 to change the angle of view of the zoom lens. When the camera 14 is provided with a single focus lens, the angle of view control function executes a process of generating an captured image in which the angle of view of the camera 14 is pseudo-changed.

Further, in each embodiment, the display unit 113 can be deformed so as to superimpose a virtual image on an unclearly processed real image. As a result, the visual field image of the virtual reality space displayed on the display device 17 becomes an image in which the real image which is the background of the virtual image is blurred. Thereby, in the first embodiment, it is possible to further reduce the discomfort that the user receives from the field image synthesized due to the difference in the angle of view between the virtual image and the real image. Further, in the second embodiment, it is possible to reduce the discomfort that the user receives from the visual field image in which the size of the player character is enlarged.

Further, in each embodiment, an example in which the arrangement unit 111 arranges a plurality of player characters V2 in the virtual space has been described. However, the number of athlete characters V2 to be arranged is not limited to a plurality and may be one depending on the competition.

[Summary]
From the above-exemplified form, for example, the following configuration can be grasped. In addition, in order to facilitate understanding of each aspect, reference numerals of the drawings are added in parentheses below for convenience, but the present invention is not intended to be limited to the illustrated aspects.

In the game program according to one aspect of the present invention, in order to realize a game imitating a competition, a virtual computer including an image pickup device (14) and a display device (17) is defined with a positional relationship with a real space. An arrangement step (S112) of arranging the player character (V2) in the virtual space in which the virtual camera is arranged at the position in the virtual space corresponding to the position of the image pickup apparatus (14) in the real space. ), A change step (S120) for changing the angle of view of the virtual camera according to the movement of the imaging device (14) in the real space, and a virtual image in which the virtual space is captured by the virtual camera. A display step (S122) in which the real space is superimposed on a real image captured by the image pickup device (14) and displayed on the display device (17) is executed, and in the change step (S120), the display step (S122) is performed. The closer the virtual camera is to the area where the player character (V2) is arranged, the narrower the angle of view of the virtual camera.

Here, when the user wants to increase the display size of the player character, the user moves the image pickup device so that the virtual camera approaches the player character. In the above configuration, the player character is automatically zoomed in accordance with such an operation of the user (hereinafter, also referred to as an operation of bringing the image pickup device closer, etc.). As a result, the display size of the player character becomes larger than the closer the player character is, so that the visibility of the player character is improved.

In particular, in the case of a game that imitates a game such as soccer in which the ratio of the player size to the stadium size is small, the display size that increases only by the closer amount is often insufficient from the viewpoint of visibility, so the above configuration is effective. Is. Further, since the user performs an operation of bringing the image pickup device closer in order to increase the display size of the player character as much as possible, there is little discomfort even if the player character is automatically zoomed as the player character is brought closer.

The game program described above is an acquisition step of acquiring the angle of view of the virtual camera for superimposing the virtual image on the real image so as to match the positional relationship between the real space and the virtual space on the computer. It is preferable that S116) is further executed and the change step (S120) changes the angle of view acquired in the acquisition step (S116).

With the above configuration, when the computer executes the game program, it is known to set the angle of view of the virtual camera for superimposing the virtual image on the real image so as to match the positional relationship between the real space and the virtual space. Techniques can be used. As a result, the portability and reusability of the game program can be improved.

In the game program described above, in the change step (S120), the smaller the distance between the virtual camera and the intersection where the straight line extending from the virtual camera in the imaging direction intersects the region, the narrower the angle of view of the virtual camera. , Is preferable.

With the above configuration, it is possible to realize a game that achieves the above-mentioned effect by referring to the distance between the virtual camera and the above-mentioned intersection.

In the game program described above, it is preferable that the change step (S120) does not execute the process of narrowing the angle of view when the distance is larger than the threshold value, but executes it when the distance is equal to or less than the threshold value.

With the above configuration, the display size of the player character becomes larger than the amount that the player character is brought closer to, only when the imager is brought closer to the area where the player character is arranged to a distance less than or equal to the threshold value, and is separated from the threshold value. If so, it will be displayed in a display size appropriate for the distance. Therefore, the change in display size becomes more natural for the user.

In the game program described above, the change step (S120) includes a process of narrowing the angle of view, the virtual camera including a virtual stadium in which the player character (V2) competes in the virtual space. It is preferable not to execute it when it is outside the area, but to execute it when it is inside the area.

With the above configuration, the display size of the player character becomes larger than the amount closer to the image pickup device only when the virtual camera is inside the predetermined area, and when it is outside the virtual camera, it is displayed in the display size corresponding to the distance. Will be done. Therefore, the change in display size becomes more natural for the user.

In the game program described above, it is preferable that the change step (S120) continuously changes the angle of view as the virtual camera approaches the region.

With the above configuration, the user can display the player character in a favorite display size by adjusting the degree to which the image pickup device is brought closer.

In the game program described above, it is preferable that the change step (S120) increases the rate of change of the angle of view as the virtual camera approaches the region.

With the above configuration, the user can increase the display size of the player character more rapidly as the image pickup device is brought closer to the player character.

In the game program according to another aspect of the present invention, in order to realize a game imitating a competition, a computer including an image pickup device (14) and a display device (17) is defined with a positional relationship with a real space. An arrangement step of arranging the player character (V2) in the virtual space in which the virtual camera is arranged at the position in the virtual space corresponding to the position of the image pickup apparatus (14) in the real space. (S112), a change step (S120) of changing the size of the player character (V2) in the virtual space according to the movement of the image pickup device (14) in the real space, and the virtual space being the virtual space. A display step (S122) in which the virtual image captured by the camera is superimposed on the real image captured by the imaging device (14) and displayed on the display device (17) is executed. In the change step (S120), the closer the virtual camera is to the area where the player character (V2) is arranged, the larger the size of the player character (V2) in the virtual space is increased.

With the above configuration, the player character is automatically enlarged as the user brings the image pickup device closer to the player character. As a result, the display size of the player character can be made larger than the closer size, so that the visibility of the player character is improved.

The information processing device according to one aspect of the present invention is an information processing device including an image pickup device (14) and a display device (17) for realizing a game imitating a competition, and has a positional relationship with a real space. The player character (V2) is placed in the virtual space in which the virtual camera is placed at the position in the virtual space corresponding to the position of the image pickup device (14) in the real space. An arrangement unit to be used, a change unit that changes the angle of view of the virtual camera according to the movement of the image pickup device (14) in the real space, and a virtual image in which the virtual space is captured by the virtual camera. A display unit in which the real space is superimposed on a real image captured by the image pickup device (14) and displayed on the display device (17) is included, and the player character (V2) is arranged in the change unit. The closer the virtual camera is to the area, the narrower the image angle of the virtual camera.

With the above configuration, the same effect as that of the above-mentioned game program is obtained.

In the method according to one aspect of the present invention, a computer including an image pickup device (14) and a display device (17) is a virtual space in which a positional relationship with a real space is defined in order to realize a game imitating a competition. The arrangement step (S112) of arranging the player character (V2) in the virtual space in which the virtual camera is arranged at the position in the virtual space corresponding to the position of the image pickup device (14) in the real space. A change step (S120) for changing the angle of view of the virtual camera according to the movement of the imaging device (14) in the real space, and a virtual image in which the virtual space is captured by the virtual camera. A display step (S122) in which the real space is superimposed on the real image captured by the image pickup device (14) and displayed on the display device (17) is executed, and the change step (S120) is performed by the player. The closer the virtual camera is to the area where the character (V2) is arranged, the narrower the angle of view of the virtual camera.

With the above configuration, the same effect as that of the above-mentioned game program is obtained.

[Example of implementation by software or hardware]
In the above-described embodiment and each modification, an example in which the control unit 110 of the information processing apparatus 10 is realized by software has been described. That is, a program executed by a computer for achieving the object of the present invention is stored in the auxiliary memory 13 of the computer shown in FIG. 2, and the processor 11 reads and executes the program, whereby the information processing device 10 The control unit 110 of the above is realized.

In this case, the auxiliary memory 13 for storing the program includes a "non-temporary tangible medium" such as a ROM (Read Only Memory), a tape, a disk, a card, a semiconductor memory, and a programmable logic circuit. Etc. can be used.

Further, the program may be supplied to the computer via an arbitrary transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. In addition, one aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the above program is embodied by electronic transmission.

The control unit 110 of the information processing device 10 is not limited to the realization by software, but may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention.

10, 10A Information processing device 11 Processor 12 Main memory 13 Auxiliary memory 14 Camera 15 Touch panel 16 Position sensor 17 Display device 18 Input device 110 Control unit 111 Arrangement unit 112, 112A Change unit 113 Display unit 114 AR control unit 115 Game progress unit

Claims (10)

In order to realize a game that imitates a competition, a computer including an image pickup device and a display device
A player character is placed in a virtual space in which a positional relationship with a real space is defined, and a virtual camera is placed at a position in the virtual space corresponding to the position of the image pickup device in the real space. Placement steps to do and
A change step of changing the angle of view of the virtual camera according to the movement of the image pickup device in the real space, and
A display step in which the virtual space superimposes a virtual image captured by the virtual camera on the real image captured by the imaging device and displays it on the display device is executed.
In the change step, a game program in which the closer the virtual camera is to the area where the player character is arranged, the narrower the angle of view of the virtual camera is. On the computer
Further, an acquisition step of acquiring the angle of view of the virtual camera for superimposing the virtual image on the real image so as to match the positional relationship between the real space and the virtual space is executed.
The change step changes the angle of view acquired in the acquisition step.
The game program according to claim 1. In the change step, the smaller the distance between the virtual camera and the intersection where the straight line extending from the virtual camera in the imaging direction intersects the region, the narrower the angle of view of the virtual camera.
The game program according to claim 1 or 2. In the change step, the process of narrowing the angle of view is not executed when the distance is larger than the threshold value, but is executed when the distance is equal to or less than the threshold value.
The game program according to claim 3. The change step does not execute the process of narrowing the angle of view when the virtual camera is outside a predetermined area including a virtual stadium in which the player character competes in the virtual space. The game program according to any one of claims 1 to 4, which is executed when it is inside. The change step continuously changes the angle of view as the virtual camera approaches the area.
The game program according to any one of claims 1 to 5. In the change step, the rate of change of the angle of view increases as the virtual camera approaches the region.
The game program according to any one of claims 1 to 6. In order to realize a game that imitates a competition, a computer including an image pickup device and a display device
A player character is placed in a virtual space in which a positional relationship with a real space is defined, and a virtual camera is placed at a position in the virtual space corresponding to the position of the image pickup device in the real space. Placement steps to do and
A change step of changing the size of the player character in the virtual space according to the movement of the image pickup device in the real space, and a change step.
A display step in which the virtual space superimposes a virtual image captured by the virtual camera on the real image captured by the imaging device and displays it on the display device is executed.
The change step is a game program in which the closer the virtual camera is to the area where the player character is arranged, the larger the size of the player character in the virtual space is. An information processing device that includes an image pickup device and a display device to realize a game that imitates a competition.
A player character is placed in a virtual space in which a positional relationship with a real space is defined, and a virtual camera is placed at a position in the virtual space corresponding to the position of the image pickup device in the real space. Arrangement part to be
A change unit that changes the angle of view of the virtual camera according to the movement of the image pickup device in the real space.
The virtual space includes a display unit that superimposes a virtual image captured by the virtual camera on a real image captured by the imaging device and displays it on the display device.
The change unit is an information processing device that narrows the angle of view of the virtual camera as the virtual camera is closer to the area where the player character is arranged. A computer that includes an image pickup device and a display device
To realize a game that imitates competition
A player character is placed in a virtual space in which a positional relationship with a real space is defined, and a virtual camera is placed at a position in the virtual space corresponding to the position of the image pickup device in the real space. Placement steps to do and
A change step of changing the angle of view of the virtual camera according to the movement of the image pickup device in the real space, and
A display step in which the virtual space superimposes a virtual image captured by the virtual camera on the real image captured by the image pickup device and displays the virtual image on the display device is executed.
The change step is a method of narrowing the angle of view of the virtual camera as the virtual camera is closer to the area where the player character is arranged.

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