JP4331190B2 - GAME DEVICE, GAME CONTROL METHOD, AND GAME CONTROL PROGRAM - Google Patents

Description

  The present invention relates to a game control technique, and more particularly to a game device, a game control method, and a game control program for recognizing an operation of an object and controlling the progress of the game.

Applicant realizes a new game world that fuses the real world and the virtual world by overlaying and displaying the video of the real world captured by the camera and the video of the virtual world generated by the game device A game system is being developed.
US Pat. No. 7,142,714

  In such a new game system, when a player plays a game on a real world game board, depending on the positional relationship between the player, the game board, the display device, and the camera, the player may change the direction of the game board displayed on the display device. It came to recognize the new problem that it might be difficult to grasp.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a more convenient game control technique.

  One embodiment of the present invention relates to a game device. The game device includes an imaging unit that captures a board surface on which a player plays a game, a display unit that displays an image captured by the imaging unit on a display device, the player or the display device, the board surface, and the imaging unit. A rotation processing unit that rotates a captured image according to a positional relationship between the two.

  It should be noted that any combination of the above-described constituent elements and a representation of the present invention converted between a method, an apparatus, a system, etc. are also effective as an aspect of the present invention.

  According to the present invention, a more convenient game control technique can be provided.

  FIG. 1 shows a basic configuration of a game system according to an embodiment. The game system 1 realizes a battle game using cards. The game system 1 recognizes the card 4 by analyzing the image captured by the camera 2 and the camera 2 that captures the card 4 placed on the board 6 by the player, and proceeds with the card game based on the recognized card 4. And a display device 68 for displaying a display screen of a card game controlled by the game device 10.

  Nine squares are formed on the board surface 6 by a plurality of partition lines. Each square forms a section in which the card 4 is placed. At the four corners of the board surface 6, graphics 7 are provided that are used as indices for the game apparatus 10 to recognize the position and orientation of the board surface 6. At least one of the four figures 7 has a different form from the other figures 7. For example, one of the figures 7 may be black and the other three figures 7 may be blue. The game apparatus 10 identifies the position of the board surface 6 by analyzing the image obtained by photographing the board surface 6 and recognizing the positions of the four figures 7, and recognizes the position of the figure 7 having a different form. Identify the orientation.

  A two-dimensional code 5 for identifying the type of the card 4 is printed on the card 4. When the player places the card 4 on one of the squares, the game apparatus 10 identifies the placed square, recognizes the two-dimensional code 5 of the card 4, and identifies the type of the placed card 4. The game apparatus 10 advances the game according to the cards 4 arranged on the square.

  As a card 4 used by the player, a “creature card” associated with a creature and a “spell card” having a function of causing a game field to cause some effect are prepared. When a player places a creature card on a square with board 6, the creature corresponding to that creature card controls the land. Creatures placed on a square on board 6 fight with a creature placed on the square by an opponent player, and creatures that have lost the battle are removed from board 6 and control of the land is released. In this way, the player wins the game by controlling the cards 4 by turning each other and controlling the five lands with their own creature cards first.

  The game apparatus 10 causes the display device 68 to display the frame image captured by the camera 2, superimposes a creature corresponding to the card 4 on the card 4, and superimposes a battle background image or the like. Since the attackable range, the situation at the time of battle, and the like change depending on the direction in which the creature is facing, the game apparatus 10 recognizes not only the position of the card 4 placed on the board surface 6 but also the direction of the card 4, and the card 4 Match the direction of the creature displayed on the screen to the direction of card 4. In addition, the game apparatus 10 may be configured to provide information necessary for the progress of the game, such as the remaining amount of life indicating the player's vitality, the remaining amount of energy (mana) used to activate a special ability corresponding to the spell card, The power of the creature may be displayed on the display device 68.

  In this way, the game apparatus 10 appropriately supports the progress of the card game by controlling the battle between the characters (creatures) associated with the cards, or executing a complicated point calculation or the like. Therefore, even a player who is not familiar with card game rules and progression methods can enjoy the card game easily and smoothly. In addition, the game apparatus 10 superimposes a creature associated with a card, an image of a game field, etc. on a video image taken by the camera 2 and displays the image on the display device 68, and effects such as battle scenes are displayed on the display device 68. Since it is displayed, it is possible to advance the card game while enjoying an impactful video effect. Furthermore, since the game can be executed using a real card owned by the player, it is possible to realize a new game world view that fuses the real world and the virtual world.

  FIG. 2 shows the configuration of the game apparatus 10. The game apparatus 10 includes a controller 20, an input unit 30, a control unit 40, a parameter holding unit 60, an image processing unit 66, and a display device 68. In terms of hardware components, these configurations are realized by a CPU of a computer, a memory, a program loaded in the memory, and the like, but here, functional blocks realized by their cooperation are illustrated. Accordingly, those skilled in the art will understand that these functional blocks can be realized in various forms by hardware only, software only, or a combination thereof.

  The input unit 30 receives an operation instruction from the user input from the controller 20 which is an example of a user interface. The control unit 40 executes the game program based on the operation instruction from the user received by the input unit 30, and advances the game. The parameter holding unit 60 holds parameters necessary for the progress of the game. The image processing unit 66 generates a game display screen controlled by the control unit 40 and causes the display device 68 to display the game display screen.

  The control unit 40 includes a recognition unit 41, a game execution unit 42, a determination unit 43, a rotation processing unit 44, and a conversion processing unit 45. The recognition unit 41 acquires and analyzes a frame image taken by the camera 2, recognizes the position and direction of the board surface 6, and holds the card 4 placed on the board surface 6 or the camera 2 for operation. Recognize the type and direction of the card 4.

  The game execution unit 42 executes a card game program and controls the progress of the card game. First, before starting the card game, the player selects a card to be used in the game from among the cards owned by the player and constructs a deck. Subsequently, the destination of the attack is determined, and the player draws his hand from the deck. The game execution unit 42 instructs the player to hold the card included in the constructed deck or the hand drawn from the deck over the camera 2, causes the recognition unit 41 to recognize the card, records it in the parameter holding unit 60, and manages it. May be.

  The game execution unit 42 instructs the first player to put out (cast) the card on the board 6 and causes the recognition unit 41 to recognize the cast card 4. If the recognized card 4 is a creature card, the game execution unit 42 displays an image for summoning the creature on the cell on which the card 4 is placed, and then superimposes the creature on the card 4. If the recognized card 4 is a spell card, the game execution unit 42 checks whether or not the player has mana necessary for the spell card to be effective, and if so, the predetermined mana cost is charged. Consume and activate spell card functions. The progress method of the game is the same as a normal card game. The game execution unit 42 records information indicating the state of the card 4 arranged on the board surface 6 in the parameter holding unit 60 and manages the game state. The game execution unit 42 superimposes and displays an image of the real world board surface 6 taken by the camera 2 and an image of a virtual game world such as a creature.

  The rotation processing unit 44 rotates an image captured by the camera 2 in accordance with the positional relationship among the player or display device 68, the board surface 6, and the camera 2. As will be described later, the rotation processing unit 44 rotates the captured image so as to have the same arrangement as the image obtained by capturing the board surface 6 from a position facing the display device 68. Or the rotation process part 44 may rotate the imaged image so that it may become the same arrangement | positioning as the image which imaged the board surface 6 from the position of a player.

  As shown in FIG. 1, in the present embodiment, since the camera 2 images the board surface 6 from obliquely above the board surface 6, when the picked-up image is rotated by the rotation processing unit 44, The shape of the board surface 6 is different from the shape of the board surface 6 in an image obtained by imaging the board surface 6 from a position facing the display device 68. Therefore, the conversion processing unit 45 captures the captured image so that the shape of the board surface 6 in the rotated image is the same as the shape of the board surface 6 in the image obtained by imaging the board surface 6 from a position facing the display device 68. Convert.

  The determination unit 43 acquires a positional relationship among the player or display device 68, the board surface 6, and the camera 2, and determines an angle for rotating the image captured by the rotation processing unit 44. The method for determining the angle will be described in detail in FIG.

  FIG. 3 is a diagram showing an example of the positional relationship among the display device 68, the board surface 6, the camera 2, and the player 8. In the example of FIG. 3, the player 8 is located at a position facing the display device 68 with the board surface 6 in between, and the camera 2 is provided at the same position. Therefore, the arrangement of the board surface 6 in the captured image of the camera 2 displayed on the display device 68 is the same as the arrangement of the board 6 in the real world as seen by the player 8.

  FIG. 4 shows a state in which an image of the board surface 6 captured by the camera 2 is displayed on the display device 68. In this case, since the player can see the captured image of the board 6 in the same direction as the board 6 in the real world, the player can easily grasp the correspondence between the board 6 displayed on the display device 68 and the board 6 in the real world. Can do.

  FIG. 5 is a diagram illustrating another example of the positional relationship among the display device 68, the board surface 6, the camera 2, and the player 8. In the example of FIG. 5, the player 8 is located at a position facing the display device 68 across the board surface 6, and the camera 2 is provided at a position facing the player 8 across the board surface 6. Therefore, the arrangement of the board surface 6 in the captured image of the camera 2 displayed on the display device 68 is opposite to the arrangement of the board surface 6 in the real world as seen by the player 8.

  In this case, the card 4 placed in front of the player in the real world is displayed in the back on the display device 68, and the player can use the board 6 displayed on the display device 68 and the board in the real world. Difficult to grasp 6 correspondence. Therefore, the rotation processing unit 44 rotates the image captured by the camera 2 by 180 degrees.

  FIG. 6A shows an image rotated by the rotation processing unit 44. Thus, since it is difficult to grasp the perspective by simply rotating, the conversion processing unit 45 further makes the shape of the board surface 6 the same as that of the board surface 6 in the image shown in FIG. The rotated captured image is converted. In this case, the image at the bottom of the screen is enlarged in the horizontal and vertical directions, and the enlargement ratio is lowered toward the top of the screen. The reduction rate increases as it goes upwards on the screen. By such conversion processing, the image shown in FIG. 6A is converted into the image shown in FIG. This is the same as the display image shown in FIG.

  Through the above processing, even if the position of the camera 2 is different from that in FIG. 3, the player can view the captured image of the board 6 in the same direction as the board 6 in the real world. It is possible to easily grasp the correspondence between the prepared board surface 6 and the board surface 6 in the real world. Further, in this case, since the camera 2 is not provided between the player 8 and the board surface 6, there is an advantage that the player can easily operate the card 4 on the board surface 6.

  FIG. 7 is a diagram illustrating another example of the positional relationship among the display device 68, the board surface 6, the camera 2, and the player 8. In the example of FIG. 7, the player 8 is located at a position facing the display device 68 across the board surface 6, and the camera 2 is provided on the right side of the board surface 6 when viewed from the player. Accordingly, the arrangement of the board surface 6 in the captured image of the camera 2 displayed on the display device 68 is shifted by 90 degrees clockwise compared to the arrangement of the real world board surface 6 seen by the player 8.

  In this case, in the real world, the card 4 placed on the right side when viewed from the player is displayed on the display device 68 after being rotated 90 degrees to the left on the front side, and the player is displayed on the display device 68. It is difficult to grasp the correspondence between the board 6 and the board 6 in the real world. Therefore, the rotation processing unit 44 rotates the image captured by the camera 2 by 90 degrees counterclockwise.

  FIG. 8A shows an image rotated by the rotation processing unit 44. Thus, since it is difficult to grasp the perspective by simply rotating, the conversion processing unit 45 further makes the shape of the board surface 6 the same as that of the board surface 6 in the image shown in FIG. The rotated captured image is converted. In this case, the image on the lower left side of the screen is enlarged in the horizontal direction and the vertical direction, and the enlargement ratio is lowered toward the upper side and right side of the screen. The image on the upper right side of the screen is reduced in the horizontal and vertical directions, and the reduction rate is lowered toward the lower and left sides of the screen. By such a conversion process, the image shown in FIG. 8A is converted into the image shown in FIG. This is the same as the display image shown in FIG.

  Through the above processing, even if the position of the camera 2 is different from that in FIG. 3, the player can view the captured image of the board 6 in the same direction as the board 6 in the real world. It is possible to easily grasp the correspondence between the prepared board surface 6 and the board surface 6 in the real world. Further, in this case, since the camera 2 is not provided between the player 8 and the board surface 6, there is an advantage that the player can easily operate the card 4 on the board surface 6.

  FIG. 9 is a diagram illustrating another example of the positional relationship among the display device 68, the board surface 6, the camera 2, and the player 8. In the example of FIG. 9, the player 8 is located at a position facing the display device 68 with the board surface 6 in between, and the camera 2 is provided on the left side of the board surface 6 when viewed from the player. Therefore, the arrangement of the board surface 6 in the captured image of the camera 2 displayed on the display device 68 is shifted by 90 degrees counterclockwise as compared with the arrangement of the real world board surface 6 viewed by the player 8.

  In this case, in the real world, the card 4 placed on the right side when viewed from the player is displayed by being rotated 90 degrees to the right on the display device 68, and the player is displayed on the display device 68. It is difficult to grasp the correspondence between the board 6 and the board 6 in the real world. Accordingly, the rotation processing unit 44 rotates the image captured by the camera 2 by 90 degrees clockwise.

  FIG. 10A shows an image rotated by the rotation processing unit 44. Thus, since it is difficult to grasp the perspective by simply rotating, the conversion processing unit 45 further makes the shape of the board surface 6 the same as that of the board surface 6 in the image shown in FIG. The rotated captured image is converted. In this case, the image on the lower right side of the screen is enlarged in the horizontal direction and the vertical direction, and the enlargement ratio is lowered toward the upper side and the left side of the screen. The image on the upper left side of the screen is reduced in the horizontal and vertical directions, and the reduction rate is lowered toward the lower and right sides of the screen. By such conversion processing, the image shown in FIG. 10A is converted into the image shown in FIG. This is the same as the display image shown in FIG.

  Through the above processing, even if the position of the camera 2 is different from that in FIG. 3, the player can view the captured image of the board 6 in the same direction as the board 6 in the real world. It is possible to easily grasp the correspondence between the prepared board surface 6 and the board surface 6 in the real world. Further, in this case, since the camera 2 is not provided between the player 8 and the board surface 6, there is an advantage that the player can easily operate the card 4 on the board surface 6.

  FIG. 11 is a diagram illustrating another example of the positional relationship among the display device 68, the board surface 6, the camera 2, and the player 8. In the example of FIG. 11, the player 8 is not at a position facing the display device 68, but is positioned on the left side of the board surface 6 toward the display device 68. At this time, two methods are conceivable as display methods in which the player can easily grasp the correspondence between the board surface 6 displayed on the display device 68 and the board 6 in the real world. As shown in FIG. 11, the first method is the same image as when the camera 2 is provided at a position facing the display device 68 across the board 6, no matter where the camera 2 is provided. Is displayed on the display device 68. As shown in FIG. 12, the second method displays the same image on the display device 68 as when the camera 2 is provided at the position of the player, regardless of where the camera 2 is provided. By the processing as described above, the player can easily grasp the correspondence between the board surface 6 displayed on the display device 68 and the board surface 6 in the real world.

  FIG. 13 is a diagram illustrating another example of the positional relationship among the display device 68, the board surface 6, the camera 2, and the player 8. In the example of FIG. 13, two players 8 are located on the left side and the right side of the board surface 6 toward the display device 68, and the camera 2 is provided on the display device 68 side of the board surface 6. In this case, by displaying the captured image of the board surface 6 in the direction shown in FIG. 13, both players can easily grasp the correspondence between the board surface 6 displayed on the display device 68 and the board surface 6 in the real world. can do.

  The determination unit 43 grasps the positional relationship among the display device 68, the board surface 6, the camera 2, and the player 8 before starting the game, and determines which of the above cases is applicable. The determination unit 43 may acquire the positional relationship by causing the camera 2 to image the display device 68, the board surface 6, and the player 8, and analyzing the captured images. Also, before starting the game, etc., a diagram showing the positional relationship between the display device 68, the board surface 6, the camera 2, and the player 8, such as FIGS. 3, 5, 7, 9, 11, 12, and 13, is presented to the player. You may acquire a positional relationship by making a player select from those positional relationships. When the determination unit 43 obtains the positional relationship, for example, the positional relationship illustrated in FIG. 3 is 0 degrees, the positional relationship illustrated in FIG. 5 is 180 degrees, and the positional relationship illustrated in FIG. 7 is counterclockwise. The rotation angle is determined to be 90 degrees around, 90 degrees clockwise in the case of the positional relationship shown in FIG. 9, and 180 degrees in the case of the positional relationship shown in FIG. The determination unit 43 may determine the rotation angle with reference to a table that stores the positional relationship and the rotation angle in association with each other.

  The rotation processing unit 44 and the conversion processing unit 45 may rotate and convert the captured image of the board surface 6 by cutting out the captured image of the board surface 6 as a texture and mapping the cut texture. As described above, by recognizing the graphic 7 provided at the four corners of the board surface 6, only the part of the board surface 6 can be cut out from the captured image. The rotation processing unit 44 or the conversion processing unit 45 maps the cut texture of the board surface 6 to, for example, the shape of the board surface 6 shown in FIG. At least one of the figures 7 has a different form from the others, the direction of the board surface 6 can be recognized, characters and images that can be seen up and down are described on the board surface 6, and the direction of the board surface 6 with respect to the player Is substantially determined, the positional relationship among the board surface 6, the camera 2, and the player can be grasped by recognizing the direction of the board surface 6 in the captured image of the board surface 6 by the camera 2. The rotation processing unit 44 or the conversion processing unit 45 determines a correspondence relationship when mapping the texture of the board surface 6 according to the positional relationship among the display device 68, the board surface 6, the camera 2, and the player.

  In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to each component and combination of processing processes, and such modifications are within the scope of the present invention.

It is a figure showing the basic composition of the game system concerning an embodiment. It is a figure which shows the structure of a game device. It is a figure which shows the example of the positional relationship of a display apparatus, a board surface, a camera, and a player. It is a figure which shows a mode that the image of the board surface imaged with the camera was displayed on the display apparatus. It is a figure which shows another example of the positional relationship of a display apparatus, a board surface, a camera, and a player. FIG. 6A is a diagram showing an image of the board surface rotated by the rotation processing unit, and FIG. 6B is a diagram showing an image of the board surface converted by the conversion processing unit. It is a figure which shows another example of the positional relationship of a display apparatus, a board surface, a camera, and a player. FIG. 8A is a diagram showing an image of the board surface rotated by the rotation processing unit, and FIG. 8B is a diagram showing an image of the board surface converted by the conversion processing unit. It is a figure which shows another example of the positional relationship of a display apparatus, a board surface, a camera, and a player. FIG. 10A is a diagram showing an image of the board surface rotated by the rotation processing unit, and FIG. 10B is a diagram showing an image of the board surface converted by the conversion processing unit. It is a figure which shows another example of the positional relationship of a display apparatus, a board surface, a camera, and a player. It is a figure which shows another example of the positional relationship of a display apparatus, a board surface, a camera, and a player. It is a figure which shows another example of the positional relationship of a display apparatus, a board surface, a camera, and a player.

Explanation of symbols

  1 game system, 2 cameras, 4 cards, 6 boards, 10 game devices, 20 controller, 30 input unit, 40 control unit, 41 recognition unit, 42 game execution unit, 43 determination unit, 44 rotation processing unit, 45 conversion processing unit , 60 parameter holding unit, 66 image processing unit, 68 display device.

Claims (9)

An imaging unit that shoots the board on which the player plays the game ;
A display device for displaying the image captured by the front Symbol player or the imaging unit, and the board, depending on the positional relationship between the front SL imaging unit, a display on the display device by rotating the captured image a rotation processing unit Ru is,
A game apparatus comprising:   The game apparatus according to claim 1, wherein the rotation processing unit rotates the captured image so as to be arranged in the same arrangement as an image of the board surface captured from a position facing the display device. The imaging unit images the board surface from diagonally above the board surface,
When the captured image is rotated by the rotation processing unit, the shape of the board surface in the rotated image is the same as the shape of the board surface in the image obtained by imaging the board surface from a position facing the display device. The game apparatus according to claim 2, further comprising: a conversion processing unit that converts the captured image.   The game apparatus according to claim 1, wherein the rotation processing unit rotates the captured image so as to be arranged in the same arrangement as an image of the board surface captured from the position of the player. The imaging unit images the board surface from diagonally above the board surface,
When the image captured by the rotation processing unit is rotated, the shape of the board surface in the rotated image is the same as the shape of the board surface in the image obtained by imaging the board surface from the position of the player. The game apparatus according to claim 4 , further comprising a conversion processing unit that converts the captured image.   The image processing apparatus further includes a determination unit that acquires a positional relationship between the player or the display device, the board surface, and the imaging unit, and that determines an angle at which the captured image is rotated by the rotation processing unit. The game device according to claim 1. Recognition unit realized by a computer includes the steps of acquiring an image player has taken the imaging unit the board to perform a game,
Rotation processing section implemented by the computer, and a display device for displaying an image acquired by the player or the recognition unit, and the board, before SL according to the positional relationship between the imaging unit, by the recognition unit a step of Ru is displayed on the display device the acquired image is rotated,
A game control method comprising: Recognition unit realized by the computer, the function of the player acquires the image captured by the imaging unit the board to perform a game,
Rotation processing section implemented by the computer, and a display device for displaying an image acquired by the player or the recognition unit, and the board, depending on the positional relationship between the imaging unit, obtained by the recognition unit image and function of Ru is displayed on the display device by rotating that is,
A game control program for causing a computer to realize the above. A computer-readable recording medium on which the game control program according to claim 8 is recorded.

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