JP5039627B2 - GAME IMAGE TRANSMISSION DEVICE, GAME IMAGE TRANSMISSION DEVICE CONTROL METHOD, AND PROGRAM - Google Patents

Description

  The present invention relates to a game image transmission device that transmits game image data indicating a game image of a game in which a moving object moves to an image display device, a control method thereof, and a program.

There are known a stationary game machine and a portable game machine capable of transferring data between the stationary game machine.
JP 2003-144751 A

  By using the stationary game machine and the portable game machine as described above, (1) game image data generated by the stationary game machine (game image transmission device) based on operation data transmitted from the portable game machine is generated. (2) A game system can be realized in which a portable game machine (image display device) displays a game image based on game image data received from a stationary game machine.

  In such a game system, if the amount of game image data is larger than the communication speed (data that can be transmitted per unit time) from the stationary game machine to the portable game machine, it takes time to transmit the game image data. It will take. As a result, the user may feel stress.

  For this reason, when realizing the above game system, it is necessary to reduce the data amount of the game image data.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a game image transmission device, a control method thereof, and a program capable of reducing the data amount of game image data. is there.

  In order to solve the above-described problem, a game image transmission device that transmits game image data indicating a game image of a game in which a movement target moves to an image display device, and a position storage unit that stores the position of the movement target; Based on the position of the movement target stored in the position storage means, basic game image generation means for generating basic game image data indicating a basic game image, and the position of the movement target stored in the position storage means Based on the attention area determination means for determining the attention area in the basic game image, and based on the basic game image data, the image data in the attention area for displaying the image in the attention area on the image display device And image data outside the region of interest for causing the image display device to display an image outside the region of interest with a lower image quality than an image inside the region of interest. The image display device using as game image data game image generation means for performing, image data within the attention area generated by the game image generation means, and image data outside the attention area generated by the game image generation means And a game image transmission means for transmitting to the game.

  Further, a control method for a game image transmission device according to the present invention is a control method for a game image transmission device for transmitting game image data indicating a game image of a game to which a movement target moves to an image display device, wherein the movement target A position storage step of storing the position of the base game image in the position storage means, and a basic game image generation step of generating basic game image data indicating a basic game image based on the position of the movement target stored in the position storage means; An attention area determination step for determining an attention area in the basic game image based on the position of the movement target stored in the position storage means, and an image in the attention area based on the basic game image data. The image data within the attention area to be displayed on the image display device and the image outside the attention area are lower in quality than the image within the attention area. A game image generation step for generating image data outside the attention area to be displayed on the image display device, image data within the attention area generated by the game image generation step, and the game image generation step. A game image transmission step of transmitting image data outside the attention area to the image display device as the game image data.

  The program according to the present invention is a stationary game machine (household game machine), a portable game machine as a game image transmission apparatus that transmits game image data indicating a game image of a game to be moved to an image display apparatus. , A program for causing a computer such as an arcade game machine, a mobile phone, a personal digital assistant (PDA), or a personal computer to function, the position storage means for storing the position of the movement target, and stored in the position storage means A basic game image generating means for generating original game data indicating a basic game image based on the position of the moving object, and a position in the basic game image based on the position of the moving object stored in the position storage means. Attention area determination means for determining an attention area, based on the basic game image data, images in the attention area are Image data within a region of interest for display on an image display device, and image data outside the region of interest for displaying an image outside the region of interest on the image display device with a lower image quality than an image within the region of interest. Game image generation means for generating, image data within the attention area generated by the game image generation means, and image data outside the attention area generated by the game image generation means as the game image data in the image display device A program that causes a computer to function as game image transmission means for transmission.

  An information storage medium according to the present invention is a computer-readable information storage medium recording the above program.

  The present invention relates to a game image transmission device that transmits game image data indicating a game image of a game in which a moving object moves to an image display device. For example, in a soccer game in which a ball object and a player object move in the game space, the ball object and the player object correspond to movement targets. For example, in a shooting game in which the display position of the aiming image moves, the aiming image corresponds to the movement target. For example, in a race game in which a car object and a virtual camera that follows the car object move in the game space, the car object and the virtual camera correspond to the movement target. In the present invention, the position of the moving object is stored. Then, basic game image data indicating a basic game image is generated based on the position of the movement target. Then, an attention area in the basic game image is determined based on the position of the movement target. Then, based on the basic game image data, the image data in the attention area for displaying the image in the attention area on the image display device, and the image outside the attention area in the image quality lower than the image in the attention area. To generate image data outside the attention area to be displayed on the image display device, and transmit the generated image data within the attention area and image data outside the attention area to the image display device as the game image data. Is done. According to the present invention, it is possible to reduce the data amount of game image data.

  In one aspect of the present invention, the basic game image generation means includes an acquisition means for acquiring the direction or movement direction or movement speed of the movement target, and the direction or movement direction of the movement object acquired by the acquisition means. Means for generating the basic game image data based on a movement speed and the position of the movement target stored in the position storage means, and the attention area determination means is stored in the position storage means. The region of interest may be determined based on the position of the movement target to be moved and the movement direction or movement speed of the movement target acquired by the acquisition unit.

  Moreover, in one aspect of the present invention, the game is a sport game performed using a play object in which a plurality of player characters appear and move, and the movement target is the player character, and the position storage means Stores the position of the play object and the positions of the plurality of player characters, and based on the position of the player object holding the play object or the play object, the plurality of player characters The attention player selecting means for selecting at least one attention player character from among the attention area determination means, based on the position of the at least one attention player character selected by the attention player selection means. The area may be determined.

  Moreover, in one aspect of the present invention, the attention player selection unit is configured to select at least one attention from the plurality of player characters based on a distance from the play object or a player character holding the play object. A player character may be selected.

  In one embodiment of the present invention, the game is a sport game performed between two teams, and the game is performed when the play object moves to an event occurrence area corresponding to one team. In addition, in the sports game in which a scoring event of the one team occurs, the attention player selecting means is configured such that when the player character of one team holds the play object, the player character or the player character May select at least one player character out of player characters located in the region based on the position of the play target held by the player and the event occurrence region corresponding to the one team. .

  In one embodiment of the present invention, the game is a sport game performed between two teams, and the game is performed when the play object moves to an event occurrence area corresponding to one team. In addition, a sports game in which a scoring event of the one team occurs, a condition relating to the position of the player character holding the play object or the play object, and selection information relating to the selection of the attention player character, And means for storing in association with each other, wherein the attention player selecting means, when the play object is held by the player character, of the player object holding the play object or the play object. You may make it select an attention player character based on the selection information matched with the conditions where a position is satisfied.

  Moreover, in one aspect of the present invention, the attention area determination means includes a position of the attention player character selected by the attention player selection means, and a position of the player character holding the play object or the play object. The region of interest may be determined based on.

  In one aspect of the present invention, the game image generation means includes first image generation means for generating image data obtained by compressing the basic game image data by a first image compression method as the non-attention area image data. , Based on the basic game image data and the image data generated by the first image generation means, indicated by the attention area of the basic game image and the image data generated by the first image generation means. Second image generation means for generating image data indicating a difference image with respect to the region of interest of the image to be played, wherein the game image transmission means is the image data itself generated by the second image generation means, or An image data obtained by compressing the image data generated by the second image generating means by a second image compression method that can obtain a compression rate lower than that of the first image compression method. The data may be transmitted as the region of interest within the image data. Here, the image compression method used in the second image compression method may be different from or the same as the image compression method used in the first image compression method. For example, when different image compression methods are used for the first image compression method and the second image compression method, the irreversible compression method is used for the first image compression method, and the reversible compression method is used for the second image compression method. It may be used. For example, when the same image compression method is used for the first image compression method and the second image compression method, a parameter value for determining the degree of compression (for example, Q value when using the JPEG method) is set to the first value. The image compression method may be different from the second image compression method.

  In one aspect of the present invention, the game image generation means generates, based on the basic game image data, first image generation means for generating image data indicating an image in the attention area of the basic game image, Based on basic game image data, second image generation means for generating image data indicating an image obtained by setting the region of interest of the basic game image in a predetermined color, and generated by the second image generation means Means for generating image data obtained by compressing the image data by the first image compression method based on the image data as the non-target area image data, and the game image transmitting means includes the first image The image data itself generated by the generation unit or the image data generated by the first image generation unit can be obtained at a compression rate lower than that of the first image compression method. Image data obtained by compressing by using an image compression method may also be transmitted as a region of interest within the image data. Here, the image compression method used in the second image compression method may be different from or the same as the image compression method used in the first image compression method. For example, when different image compression methods are used for the first image compression method and the second image compression method, the irreversible compression method is used for the first image compression method, and the reversible compression method is used for the second image compression method. It may be used. Also, for example, when the same image compression method is used for the first image compression method and the second image compression method, a parameter value for setting the degree of compression (for example, Q value when using the JPEG method) is set to the first value. The image compression method may be different from the second image compression method.

  In one aspect of the present invention, the game image generation means generates image data indicating an image formed by setting an attention area of the basic game image to a predetermined color based on the basic game image data. Image generation means; second image generation means for generating image data obtained by compressing the image data generated by the first image generation means by the first image compression method as the non-target area image data; Based on the game image data and the image data generated by the second image generation means, the attention area of the basic game image and the image indicated by the image data generated by the second image generation means Third image generation means for generating image data indicating a difference image from the region of interest, and the game image transmission means is generated by the third image generation means. The image data itself or the image data obtained by compressing the image data by the second image compression method that can obtain a compression rate lower than that of the first image compression method is transmitted as the image data in the region of interest. It may be. Here, the image compression method used in the second image compression method may be different from or the same as the image compression method used in the first image compression method. For example, when different image compression methods are used for the first image compression method and the second image compression method, the irreversible compression method is used for the first image compression method, and the reversible compression method is used for the second image compression method. It may be used. Also, for example, when the same image compression method is used for the first image compression method and the second image compression method, a parameter value for setting the degree of compression (for example, Q value when using the JPEG method) is set to the first value. The image compression method may be different from the second image compression method.

  In the aspect of the invention, the first image generation unit may set a color set in the attention area of the basic game image based on a color value of each pixel in the attention area of the basic game image. It may be determined.

  In order to solve the above problems, a game image transmission device according to the present invention is a game image transmission device that transmits game image data indicating a game image including an image indicating a user's designated position to an image display device. And a basic game image data indicating a basic game image including an image indicating the user's designated position based on the designated position obtained by the designated position obtaining means and the designated position obtained by the designated position obtaining means. Based on the basic game image generation means, attention area determination means for determining an attention area in the basic game image based on the indicated position acquired by the indicated position acquisition means, and based on the basic game image data , The image data within the attention area for displaying the image within the attention area on the image display device, and the image outside the attention area as the attention area. Non-attention area image data to be displayed on the image display device with lower image quality than the image within the image, the game image generation means for generating, the in-area image data generated by the game image generation means, Game image transmission means for transmitting image data outside the attention area generated by the game image generation means to the image display device as the game image data.

  In one aspect of the present invention, it further includes history generation means for generating history data relating to the history of the indicated position acquired by the indicated position acquisition means, wherein the attention area determination means is based on the history data. May be determined.

  The game image transmitting apparatus control method according to the present invention includes an instruction position acquisition step for acquiring a user's instruction position, and an image indicating the user's instruction position based on the instruction position acquired by the instruction position acquisition step. An attention area for determining an attention area in the basic game image based on a basic game image generation step for generating basic game image data indicating a basic game image including the instruction position acquired by the instruction position acquisition step A determination step; based on the basic game image data, image data in the attention area for displaying an image in the attention area on an image display device; and an image outside the attention area in comparison with the image in the attention area. A game image generation step for generating image data outside a region of interest for display on the image display device with low image quality; and A game image transmission step for transmitting the image data within the attention area generated by the game image generation step and the image data outside the attention area generated by the game image generation step to the image display device as game image data; It is characterized by including.

  In addition, the program according to the present invention is a game image transmission apparatus, such as a stationary game machine (home game machine), a portable game machine, an arcade game machine, a mobile phone, a personal digital assistant (PDA), or a personal computer. A basic game comprising an instruction position acquisition means for acquiring a user's instruction position, and an image indicating the user's instruction position based on the instruction position acquired by the instruction position acquisition means A basic game image generating means for generating basic game image data representing an image; an attention area determining means for determining an attention area in the basic game image based on the indicated position acquired by the indicated position acquiring means; and the basic game An image within the region of interest for causing the image display device to display an image within the region of interest based on image data Game image generation means for generating data out of the region of interest and image data outside the region of interest for causing the image display device to display the image outside the region of interest on the image display device with a lower image quality than the image within the region of interest. Causing the computer to function as game image transmission means for transmitting the image data within the attention area generated by the means and the image data outside the attention area generated by the game image generation means to the image display device as game image data. It is a program characterized by this.

  An information storage medium according to the present invention is a computer-readable information storage medium recording the above program.

  The present invention relates to a game image transmission device that transmits game image data indicating a game image including an image indicating a user's designated position to an image display device. In the present invention, the user's designated position is acquired. And the basic game image data which shows the basic game image containing the image which shows a user's instruction | indication position is produced | generated. Then, based on the acquired designated position, a region of interest in the basic game image is determined. Then, based on the basic game image data, the image data within the attention area for displaying the image within the attention area on the image display device, and the image outside the attention area are lower than the image within the attention area. Image data outside the attention area to be displayed on the image display device with image quality is generated, and the generated image data within the attention area and image data outside the attention area are generated as game image data on the image display apparatus. Sent. According to the present invention, it is possible to reduce the data amount of game image data.

[Embodiment 1]
Hereinafter, an example of Embodiment 1 of the present invention will be described in detail with reference to the drawings. Here, the case where it implement | achieves using the game server 2 as a game image transmission apparatus which concerns on embodiment of this invention is demonstrated. FIG. 1 is a diagram illustrating an example of a configuration of a game system 100 including a game server 2 according to an embodiment of the present invention. As shown in the figure, the game system 100 includes a game server 2 and at least one game terminal 4 (image display device) of a user. Here, a case where the game system 100 includes four game terminals 4 will be described. The game server 2 and each game terminal 4 can exchange data with each other by wireless communication.

  The game server 2 is a stationary game machine including, for example, a microprocessor, a main memory, an image processing unit, a hard disk, an optical disk playback device loaded with an optical disk (information storage medium) storing a game program, a communication interface, and the like. is there. The communication interface is an interface for communicating with the game terminal 4. The game server 2 may be, for example, an arcade game machine or a personal computer. On the other hand, the game terminal 4 is a portable game machine including, for example, a microprocessor, a main memory, an operation unit, a display, a communication interface, an image processing unit, and the like. The communication interface is an interface for communicating with the game server 2. The image processing unit includes a VRAM, and draws a game image on the VRAM based on the game image data. Then, the image processing unit converts the content into a video signal and outputs it to the display.

  In the game system 100, a game in which a movement target moves is realized. In this embodiment, a soccer game is realized. This soccer game is realized by the microprocessor of the game server 2 operating according to a game program read from the optical disk. This soccer game is performed with the users of the game terminals participating at the same time.

  In the main memory of the game server 2, a game space shared by the users of the game terminals 4 is constructed. For example, the game server 2 stores game situation data indicating the situation of the game space. Then, the game situation data is updated based on a predetermined algorithm or a user operation signal received from each game terminal 4. Further, the game server 2 generates game image data for displaying a game image representing the state of the game space on the display of each game terminal 4. Then, the game image data is transmitted to each game terminal 4. On the other hand, the game terminal 4 receives the game image data transmitted from the game server 2 and displays the game image indicated by the game image data on the display. In addition, the game terminal 4 transmits an operation signal input by the user using the operation unit to the game server 2.

  Here, the game space constructed in the main memory of the game server 2 will be described. FIG. 2 is a diagram illustrating an example of the state of the game space constructed in the main memory of the game server 2. This game space is a virtual three-dimensional space in which three coordinate axes are set. Although the game space is described as a virtual three-dimensional space here, the game space may be a virtual two-dimensional space in which two coordinate axes are set.

  In the game space, 22 player objects 10 (player characters; movement targets), a ball object 12 indicating a soccer ball (play target), a field object 14 indicating a soccer field, two goal objects 16, Is placed. Further, virtual cameras 18 corresponding to the respective game terminals 4 are set in the game space. Three coordinate axes are set. Also, a half line 15 and two goal lines 17 are set. As described above, 22 player objects 10 are arranged. Of the 22 player objects 10, 11 are associated with the first team, and the remaining 11 are associated with the second team that is hostile to the first team. Further, the direction (front direction) of each player object 10 is set. In FIG. 2, only the player object 10 (operation target player) that is the operation target of each game terminal 4 (each user) is shown, and the other player objects 10 are omitted. The field object 14 is arranged in parallel to the XW-YW plane. Each virtual camera 18 photographs an operation target player of the game terminal 4 corresponding to the virtual camera 18. A line-of-sight direction is set to each virtual camera 18 in a direction toward the representative point of the operation target player, and each virtual camera 18 moves in the positive or negative direction of the YW axis following the operation target player to be imaged. Each virtual camera 18 has a predetermined angle of view. Hereinafter, “player object 10 associated with the first team” is referred to as “player object of the first team”, and “player object 10 associated with the second team” is referred to as “player object of the second team”. "

  In the present embodiment, a “first team event occurrence area” is set in an area surrounded by a goal object 16 having a larger YW coordinate (hereinafter referred to as “second team goal object 16”), A “second team event occurrence area” is set in an area surrounded by the goal object 16 (hereinafter referred to as “first team goal object 16”). The hatched area in FIG. 2 indicates each event occurrence area. On this basis, when the ball object 12 moves to the event occurrence area of one team, the scoring event of the one team is generated.

  In the present embodiment, the player object 10 of the first team is operated by the user of each game terminal 4. Each user cooperates while viewing individual game images, and moves the ball object 12 toward an event occurrence area corresponding to the first team. Thus, the goal is to generate more scoring events for the first team than scoring events for the second team.

  Next, game situation data will be described. FIG. 3 is a diagram illustrating an example of game situation data stored in the main memory. The game situation data stores information related to each player object 10 in association with each player object 10. Specifically, as shown in FIG. 3, the game situation data includes a player ID field, a position field, a moving speed field, a moving direction field, a front direction field, an operation target flag field, and a team ID field. And a ball holding flag field. In the player ID field, the player ID of each player object 10 is stored. In the position field, the position of each player object 10 is stored. For example, the position coordinates of the representative point of each player object 10 are stored. In the movement speed field, the movement speed of each player object 10 is stored. For example, the movement distance of each player object 10 in a predetermined time is stored. In the movement direction field, the movement direction of each player object 10 is stored. For example, a direction vector indicating the moving direction of each player object 10 is stored. Further, the front direction of each player object 10 is stored in the front direction field. For example, a direction vector indicating the front direction of each player object 10 is stored. The front direction is a line-of-sight direction set near the face of the player object 10, for example. The operation target flag field stores a value indicating whether each player object 10 is an operation target player. The team ID field stores the team ID of the team with which each player object 10 is associated. In the ball holding flag field, a value indicating whether each player object 10 holds the ball object 12 is stored. Thereby, the player object 10 holding the ball object 12 and the ball object 12 are associated with each other. Although not shown here, the game situation data includes values indicating the game terminal 4 that operates each operation target player, position coordinates indicating the position, moving direction, and moving speed of the ball object 12, and each team. The position of the event occurrence area (that is, the position of the goal object 16 of each team), the position coordinates indicating the position of each virtual camera 18, the value indicating the game terminal 4 corresponding to each virtual camera 18, and the like are also stored. .

  The game server 2 generates game image data indicating a game image showing a state viewed from each virtual camera 18 based on the game situation data, and transmits the game image data to the game terminal 4 corresponding to each virtual camera 18. In the game server 2, the data amount of the game image data can be reduced in order to shorten the time taken to display the game image on the display of the game terminal 4. Hereinafter, this point will be described.

  FIG. 4 is a flowchart mainly showing the processes related to the present invention among the processes executed by the game server 2. The microprocessor executes the process shown in FIG. 4 every predetermined time (for example, 1/60 second) according to the game program stored on the optical disc.

  The microprocessor (basic game image generating means) updates the game situation data based on a predetermined algorithm and an operation signal received from each game terminal 4 (S101). For example, the microprocessor (acquisition means) acquires and updates the moving direction, moving speed, and front direction of each player object 10 based on a predetermined algorithm or operation signal. Then, the microprocessor updates the position of each player object 10 based on the moving direction and moving speed of each player object 10 after the update. For example, the microprocessor acquires and updates the moving direction and moving speed of the ball object 12 based on the pass operation signal received from the game terminal 4. Then, the microprocessor updates the position of the ball object 12 based on the moving direction and moving speed of the ball object 12 after the update. Further, for example, when the position of the operation target player is updated, the microprocessor updates the position of the virtual camera 18 shooting the operation target player based on the position of the operation target player.

  Then, the processes of S102 to S106 are executed for each virtual camera 18.

  That is, the microprocessor (basic game image generating means) generates basic game image data indicating the basic game image based on the stored contents of the game situation data including the position of each player object 10 (S102).

  Specifically, the microprocessor performs geometry processing. That is, the microprocessor performs screen coordinate conversion into a screen coordinate system in which the virtual camera 18 is the origin, the viewing direction is the Z direction, the horizontal direction is the X direction, and the vertical direction is the Y direction. Further, the microprocessor executes clipping processing. Then, the microprocessor executes a rendering process. In this way, the microprocessor generates bitmap data indicating the image when viewing the line of sight from the virtual camera 18 as basic game image data. An image indicated by the basic game image data is a basic game image.

  Then, the microprocessor selects an operation target player photographed by the virtual camera 18 as a focused player (S103).

  Then, the microprocessor (attention area determination means) determines an attention area in the basic game image based on the position of the attention player stored in the game situation data (S104). Here, the attention area is set to an area where the user who operates the attention player is likely to pay attention.

  For example, the user has a high possibility of paying attention to the vicinity of the player of interest. Therefore, the microprocessor may determine “the display position of the attention player” as the position of the attention area. At this time, the microprocessor calculates the “display position of the notable player” by converting the position of the notable player in the game space by screen coordinates. On this basis, a predetermined range area including the display position of the attention player is determined as the attention area. FIG. 5 is a diagram illustrating an example of the attention area 40 at this time. In the figure, a region surrounded by a broken line indicates a region of interest 40. Note that the shape of the attention area 40 may be any shape. For example, the attention area 40 may be a concentric area centered on the position of the attention area 40.

  In addition, for example, the user is likely to pay attention to a little ahead of the direction in which the focused player is moving. Therefore, the microprocessor determines the attention area 40 not only based on the position of the attention player stored in the game situation data but also based on the moving direction and the moving speed of the attention player stored in the game situation data. You may make it do.

  For example, the microprocessor calculates “a position advanced by a distance R in the moving direction from the position in the game space of the focused player”. Then, the calculated position may be determined as the position of the attention area 40 by performing screen coordinate conversion on the calculated position. FIG. 6 is a diagram illustrating an example of the attention area 40 at this time. Further, for example, the microprocessor calculates “display position of noticed player” and “movement direction of display position of noticed player”, and “movement direction of display position of noticed player” from “display position of noticed player”. The position advanced by a predetermined distance R to “” may be determined as the position of the attention area 40. Here, the microprocessor calculates the “display position of the notable player” by converting the position of the notable player in the game space by screen coordinates. Further, the microprocessor calculates “the moving direction of the display position of the focused player” by converting the vector indicating the moving direction of the focused player in the game space by screen coordinates. In addition, you may determine the distance R based on the moving speed of an attention player. For example, the distance R may be calculated by substituting the moving speed of the noted player into a predetermined arithmetic expression, or a table in which the distance R and the moving speed of the noted player are associated with each other is stored. You may make it read the distance R corresponding to the moving speed of the attention player memorize | stored in game situation data.

  In addition, for example, the user is highly likely to pay attention to the direction in which the focused player is about to move, that is, the direction in which the focused player is facing. Therefore, the microprocessor may determine the attention area 40 not only based on the position of the attention player stored in the game situation data but also based on the front direction of the attention player stored in the game situation data. .

  For example, the microprocessor calculates “a position advanced by a predetermined distance in the front direction from the position in the game space of the player of interest”. Then, the calculated position may be determined as the position of the attention area 40 by performing screen coordinate conversion on the calculated position. Further, for example, the microprocessor calculates the “display position of the noted player” by converting the position of the noted player in the game space by screen coordinates. In addition, a “direction vector” is calculated by screen coordinate conversion of a vector indicating the front direction of the player of interest. On this basis, the microprocessor may calculate a position advanced by a predetermined distance from the “display position of the focused player” in the direction indicated by the “direction vector”, and determine the calculated position as the position of the focused area 40. Good.

  The microprocessor may determine the size of the attention area 40 based on the moving speed of the attention player stored in the game situation data. For example, when the attention area 40 is a concentric area centered on the position, the radius of the attention area 40 may be calculated by substituting the moving speed of the attention player into a predetermined arithmetic expression. A table in which the radius of the area 40 is associated with the moving speed of the player of interest is stored, and the radius of the attention area 40 corresponding to the moving speed of the player of interest stored in the game situation data is read out. Good.

  Thus, the microprocessor determines the attention area 40 in the basic game image. Incidentally, for example, in a soccer game in which one virtual camera that follows the ball object 12 is set in the game space, the microprocessor selects the ball object 12 instead of selecting the player object 10 in step S103. You may do it. Then, the attention area 40 may be determined based on the position of the ball object 12 by performing a process similar to the process of S104 by the microprocessor. In this case, the ball object 12 corresponds to the “movement target”.

  When the attention area 40 is determined, the microprocessor (game image generating means) determines the image data within the attention area for displaying the image within the attention area on the game terminal 4 and the image outside the attention area from the image within the attention area. Game image data including image data outside the attention area to be displayed on the game terminal 4 with low image quality is generated (S105). At this time, the microprocessor generates the game image data so that the data amount is reduced as compared with the basic game image data.

  Here, an example of a method for generating game image data will be described so that the data amount is reduced as compared with the basic game image data. Here, three modes (modes 1 to 3) will be described. FIG. 7 is a diagram for explaining the first aspect. FIG. 8 is a diagram for explaining the second aspect. FIG. 9 is a diagram for explaining the third aspect. Hereinafter, each aspect will be described. In FIGS. 7 to 9, a region surrounded by a broken line indicates the attention region 40.

  As shown in FIG. 7, in the aspect 1, the microprocessor (first image generation means) generates image data 62 obtained by compressing the basic game image data 60 by the first image compression method (S201). That is, the microprocessor generates the image data 62 by compressing the basic game image data 60 by the first image compression method. The image data 62 generated in this step becomes the image data outside the attention area.

  Then, based on the basic game image data 60 and the image data 62, the microprocessor (second image generation means) generates the attention area 40 of the basic game image and the attention area 40 of the image indicated by the image data 62. The image data 64 indicating the difference image is generated (S202). The image data 64 generated in this step is the attention area image data.

  In this way, the microprocessor generates game image data 50. In this way, the data amount of the game image data 50 can be reduced more than the data amount of the basic game image data 60. In addition, the image quality degradation in the attention area is smaller than the image quality degradation outside the attention area, and the image quality in the attention area is maintained higher than the image quality outside the attention area. As a result, it is possible to prevent the user from feeling stressed because, for example, the image quality of the region that is likely to be noticed by the user is low.

  Here, in order to further suppress the data amount of the game image data 50, the microprocessor uses the second image compression method to obtain a lower compression rate than the first image compression method after the step of S202. The compressed image data of the image data 64 may be generated by compressing 64. For example, when the first image compression method is an irreversible compression method (eg, JPEG method, JPEG2000 format), the microprocessor compresses the image data 64 using a lossless compression method (eg, GIF format, PNG format). Thus, when the image data 64 is compressed by the same image compression method as the first image compression method, the image data 64 is compressed with the parameter value for determining the degree of compression being changed. In this case, the compressed image data of the image data 64 becomes the image data within the attention area. Even in this case, the image quality in the attention area is maintained higher than the image quality outside the attention area.

  As shown in FIG. 8, in the aspect 2, the microprocessor (first image generating means) generates image data 66 indicating an image in the attention area of the basic game image based on the basic game image data 60 (S301). ). For example, the microprocessor extracts a portion indicating the image in the attention area from the basic game image data 60. Further, based on the basic game image data 60, the microprocessor (second image generating means) generates image data 68 indicating an image obtained by setting the attention area of the basic game image to a predetermined color (S302). For example, the microprocessor generates the image data 68 by setting the pixel value in the attention area in the basic game image data 60 to a predetermined color value.

  Then, the microprocessor generates image data 70 obtained by compressing the image data 68 by the first image compression method (S303). In the aspect 2, the image data 70 is image data outside the attention area. Further, the microprocessor generates the image data 72 by compressing the image data 66 by the second image compression method that can obtain a compression rate lower than that of the first image compression method (S304). For example, when the first image compression method is an irreversible compression method (for example, JPEG method, JPEG2000 format), the microprocessor compresses the image data 68 using a reversible compression method (for example, GIF format, PNG format). Thus, when the image data 68 is compressed by the same image compression method as the first image compression method, the image data 68 is compressed with the parameter value for determining the degree of compression being changed. In the aspect 2, the image data 72 is the image data within the attention area. Note that the image data 66 may be image data within the attention area.

  According to the second aspect, the data amount of the game image data 50 can be reduced more than the data amount of the basic game image data 60. In addition, the image quality degradation in the attention area is smaller than the image quality degradation outside the attention area, and the image quality in the attention area is maintained higher than the image quality outside the attention area. According to the aspect 2, the data amount of the image data outside the attention area can be suppressed as compared with the case of the aspect 1. Usually, the compression rate obtained when the image data 68 is compressed is higher than the compression rate obtained when the basic game image data 60 itself is compressed. This is because the data amount of the image data 70 that is the image data outside the attention area in the aspect 2 is smaller than that of the data 62.

  Next, aspect 3 will be described. As shown in FIG. 9, in aspect 3, the microprocessor (first image generating means) is an image showing an image formed by setting the attention area of the basic game image to a predetermined color based on the basic game image data 60. Data 74 is generated (401). At this time, the microprocessor determines the color to be set in the attention area based on the color value of each pixel in the attention area of the basic game image. For example, the microprocessor determines the color to be set in the attention area as a color (hereinafter referred to as an average color) indicated by the average value of the color values of each pixel in the attention area of the basic game image. Then, the microprocessor (second image generation means) generates image data 76 obtained by compressing the image data 74 by the first image compression method (S402). In aspect 3, the image data 76 is image data outside the attention area.

  Based on the basic game image data 60 and the image data 76, the microprocessor (third image generation means) generates the attention area 40 of the basic game image and the attention area 40 of the image indicated by the image data 76. The image data 78 indicating the difference image is generated (S403). Then, the microprocessor generates the image data 80 by compressing the image data 78 by the second image compression method that can obtain a compression rate lower than that of the first image compression method (S404). For example, when the first image compression method is an irreversible compression method (eg, JPEG method, JPEG2000 format), the microprocessor compresses the image data 78 using a lossless compression method (eg, GIF format, PNG format). Thus, when the image data 78 is compressed by the same image compression method as the first image compression method, the image data 78 is compressed with the parameter value for determining the degree of compression being changed. In the aspect 3, the image data 80 is the image data within the attention area. Note that the image data 78 may be image data within the attention area.

  According to the aspect 3, the data amount of the game image data 50 can be reduced more than the data amount of the basic game image data 60. In addition, the image quality degradation in the attention area is smaller than the image quality degradation outside the attention area, and the image quality in the attention area is maintained higher than the image quality outside the attention area. Furthermore, the data amount of the image data outside the attention area can be reduced as compared with the case of the first aspect.

  In the aspect 3, the difference image indicated by the image data 78 is an image obtained by removing the average color component from the image in the attention area of the basic game image. In other words, the difference image is an image obtained by removing the DC component from the image in the attention area of the basic game image. Therefore, according to aspect 3, the data amount of the image data in the attention area can be reduced as compared with the case of aspect 2. When the same image compression method is used, the compression rate obtained when the image data 78 of aspect 3 is compressed is higher than the compression rate obtained when the image data 66 of aspect 2 is compressed. This is because the image data 80 that is the image data in the attention area in the aspect 3 has a smaller data amount than the image data 72 that is the image data in the attention area in the aspect 2.

  When the game image is generated in step S105, the microprocessor (game image transmission means) transmits the game image data 50 to the game terminal 4 corresponding to the virtual camera 18 (S106). The above is the contents of the processing executed by the microprocessor of the game server 2.

  Here, the case where the microprocessor selects the operation target player as the attention player in step S103 has been described. However, the microprocessor (attention player selection means) sets the player object 10 other than the operation target player as the attention player. Multiple selections may be made. On this basis, the attention area 40 may be determined based on the position of each attention player. For example, the attention area 40 may be determined by the number of attention players by executing the process of S104 for each attention player.

  Hereinafter, three modes for selecting a plurality of players of interest based on the position of the ball object 12 or the player object 10 holding the ball object 12 will be described.

  For example, the user has a high possibility of paying attention to the player object 10 close to the ball object 12. Therefore, in aspect 1, the microprocessor selects the player of interest from the plurality of player objects 10 based on the distance from the ball object 12 or the player object 10 holding the ball object 12. For example, the microprocessor may select a predetermined number of attention players in order from the player object having the smallest distance to the ball object 12. In this case, in step S103, the microprocessor calculates the distance between each player object 10 and the ball object 12, and then selects a predetermined number of attention players in order from the player object 10 having the smallest distance from the ball object 12. Just choose.

  Further, for example, when the ball object 12 is held by any player object 10, the user is likely to focus on the direction in which the player object 10 is attacking. That is, when the player object 10 of one team holds the ball object 12, the user can pay attention to the area closer to the goal object 16 of the other team than the position of the player object 10 or the ball object 12. High nature.

  Therefore, in aspect 2, the microprocessor executes the following processing in step S103. That is, the microprocessor refers to the game situation data and determines whether or not the ball object 12 is held by any player object 10. When the ball object 12 is held by any player object 10, the team of the player object 10 holding the ball object 12 is specified. The microprocessor then pays attention based on the position of the ball object 12 or the player object 10 holding the ball object and the position of the event occurrence area of the team of the player object 10 holding the ball object 12. A selection area for selecting a player is determined. For example, the microprocessor selects the area between the position of the ball object 12 or the player object 10 holding the ball object and the position of the event occurrence area of the player character team holding the ball object 12. You may make it determine as an area | region. More specifically, the microprocessor includes a straight line parallel to the X axis set at the position of the ball object 12 or the player object 10 holding the ball object, and a team of player characters holding the ball object 12. The area between the goal line 17 set at the position of the event occurrence area and the event generation area may be determined as the selection area. On this basis, the microprocessor determines whether or not each player object 10 is located within the selection region, and selects the player object 10 determined to be located within the selection region as at least one player of interest. For example, a predetermined number of attention players are selected in order from the player object 10 having the smallest distance from the ball object 12 among the player objects 10 determined to be located in the selection region.

  For example, when the ball object 12 is held by the player object 10, the user needs to pay attention to the area in the field object 14 where the player object 10 is located, the team of the player object 10, and the like. A certain player object 10 changes. For example, when the player object 10 of the own team holds the ball object 12 at a position close to the goal object 16 of the own team, the user can prevent the opponent team from taking the ball object 12 by the player object 10 of the opponent team. It is necessary to pay attention to the movement of the player object 10. Further, for example, when the player object 10 of the own team holds the ball object 12 at a position close to the goal object 16 of the opponent team, the user may further bring the ball object 12 closer to the goal object 16 of the opponent team. It is necessary to pay attention to the movement of the player object 10 of the own team.

  Therefore, in the aspect 3, when the ball object 12 is held by the player object 10, the microprocessor, the area in the field object 14 where the player object 10 holding the ball object 12 is located, or the player object 10 The player of interest is selected from among the plurality of player objects 10 based on the team. Hereinafter, Mode 3 will be described.

  In the aspect 3, position data in which each team is associated with its position area is stored in advance. For example, the base area of the first team is an area between the goal line 17 set at the position of the event occurrence area of the second team and the half line 15. Further, for example, the base area of the second team is an area between the goal line 17 set at the position of the event occurrence area of the first team and the half line 15.

  In addition, selection control data in which a position condition related to the position of the ball object 12 or the player object 10 holding the ball object 12 and a selection instruction related to the selection of the player of interest are associated with each other is stored in advance. FIG. 10 is a diagram illustrating an example of the content of the selection control data. As shown in the figure, the selection data stores two positional conditions in association with selection instructions corresponding to the respective positional conditions. Here, the selection control data includes the ball object 12 or the player object 10 holding the ball object 12 within the base area of the own team (that is, the team to which the player object 10 holding the ball object 12 belongs). If the position object 1 is satisfied and the player object 10 holding the ball object 12 or the ball object 12 is the own team (that is, the team to which the player object 10 holding the ball object 12 belongs) The position condition 2 that is satisfied when it is located outside the base area is stored. In addition, a selection instruction 1 and a selection instruction 2 for designating “the composition of the number of players of interest to be selected from each of the own team of the player object 10 holding the ball object 12 and the opponent team” are stored. . Based on this, the microprocessor executes the following processing in step S103.

  That is, the microprocessor refers to the game situation data and determines whether or not the ball object 12 is held by any player object 10. When the ball object 12 is held by any player object 10, the base data is referred to, and the player object 10 holding the ball object 12 or the ball object 12 determines the own team (ie, the ball object 12 It is determined whether or not it is located within the base area of the team to which the held player object 10 belongs. Then, based on the determination result, the microprocessor specifies a position condition that satisfies the position of the ball object 12 or the player object 10 holding the ball object 12. Then, the microprocessor refers to the selection control data, and selects an attention player from among the plurality of player objects 10 based on the selection instruction associated with the specified position condition. For example, when the selection instruction 1 is selected, the microprocessor selects two notable players from the own team of the player object 10 holding the ball object 12, and selects the player object 10 holding the ball object 12. Select two notable players from the opposing team.

  So far, the mode has been described in which the microprocessor selects the attention area 40 based only on the information related to the attention player (that is, the position, movement direction, movement speed, and direction of the attention player) in step S104. However, the microprocessor may determine the attention area 40 based on the information regarding the attention player and the information regarding other objects. For example, in step S104, the microprocessor determines the attention area 40 based on the position of the attention player stored in the game situation data and the position of the ball object 12 stored in the game situation data. Also good. For example, the microprocessor determines the rectangular area surrounding “the display position of the ball object 12 or the player object 10 holding the ball object 12” and “the display position of the focused player” as the focused area 40. May be. At this time, the microprocessor has the short side or the long side of the attention area 40, “the display position of the ball object 12 or the player object 10 holding the ball object 12” and “the display position of the attention player”. You may make it determine the attention area | region 40 so that it may become parallel to the straight line to connect.

  FIG. 11 is a functional block diagram showing functions related to the present invention among the functions realized by the game server 2 according to the present embodiment. As shown in FIG. 11, the game server 2 includes a game situation data storage unit 20, a basic game image data generation unit 22, an attention area determination unit 24, a game image data generation unit 26, and a game image data transmission unit 28. And including.

  The game situation data storage unit 20 (position storage means) is realized by, for example, a main memory. The game situation data storage unit 20 stores game situation data (see FIG. 3).

  The basic game image data generation unit 22 (basic game image generation means) is realized by, for example, a microprocessor or an image processing unit. The basic game image data generation unit 22 updates the storage content of the game situation data stored in the game situation data storage unit 20. For example, the basic game image data generation unit 22 acquires and updates the moving direction, moving speed, and front direction of the player object 10 based on a predetermined algorithm and a user operation signal transmitted from the game terminal 4. Further, for example, the basic game image data generation unit 22 updates the position of the player object 10 based on the moving direction and moving speed of the updated player object 10.

  In addition, the basic game image data generation unit 22 generates basic game image data 60 indicating a basic game image based on the stored content of the game situation data stored in the game situation data storage unit 20. For example, the basic game image data generation unit 22 generates the basic game image data 60 based on the position of the player object 10 stored in the game situation data.

  The attention area determination unit 24 (attention area determination means) is realized by, for example, a microprocessor or the like. The attention area determination unit 24 determines the attention area 40 in the basic game image based on the positions of the player object 10, the ball object 12, and the like stored in the game situation data.

  The game image data generation unit 26 (game image generation means) is realized by, for example, a microprocessor. The game image data generation unit 26 causes the game terminal 4 to display an image in the attention area determined by the attention area determination unit 24 based on the basic game image data 60 generated by the basic game image data generation unit 22. Image data within the attention area, and image data outside the attention area for causing the game terminal 4 to display an image outside the attention area determined by the attention area determination unit 24 with a lower image quality than the image within the attention area. Game image data 50 is generated.

  The game image data transmission unit 28 (game image transmission means) is realized by, for example, a microprocessor and a communication interface. The game image data transmission unit 28 transmits the game image data 50 generated by the game image data generation unit 26 to the game terminal 4.

  As described above, in the game system 100, the data amount of the game image data 50 is reduced more than the data amount of the basic game image data 60. Therefore, the time taken for the display of the game terminal 4 to display the game image is shortened. Further, in the game system 100, the image quality in the attention area that is likely to be noticed by each user is maintained higher than the image quality outside the attention area. Therefore, for example, it is aimed not to make each user feel stress.

  Here, the case where a soccer game is realized in the game system 100 has been described, but the game realized in the game system 100 may be any game. For example, the game realized in the game system 100 may be a sports game other than a soccer game. For example, games realized in the game system 100 are basketball games, ice hockey games, American football games, rugby games, volleyball games, tennis games, table tennis games, badminton games, dodgeball games, handball games, water polo games, and the like. May be. In this case, the ball or the pack corresponds to the “play object”.

  Further, for example, a game realized in the game system 100 may be a game other than a sports game.

  For example, the game realized in the game system 100 may be a shooting game in which a display position of a cursor (for example, an aiming image) corresponding to a movement target is updated according to a user operation signal. In this case, an area including the cursor display position may be determined as the attention area 40.

  In addition, for example, in a game realized in the game system 100, a moving object 98 (moving target) operated by a user moves within a game space in which a race course object is arranged with a predetermined position with the moving object 98. It may be a racing game that moves with a virtual camera that is driven while maintaining the relationship.

  In such a racing game, there is a high possibility that the user will pay attention to the periphery of the display position of the moving object 98. Therefore, a predetermined area including the display position of the moving object 98 may be determined as the attention area 40.

  In such a race game, for example, the user is highly likely to pay attention to a portion of a race course object that has not been displayed on the display until immediately before. Therefore, the portion of the race course object that has not been displayed on the display until immediately before may be determined as the attention area 40. As a premise for this, reference points 99 set in various places of the race course object are stored. On this basis, the microprocessor may determine the attention area 40 based on the position of the moving object 98 in steps S103 and S104. In other words, in step S103, the microprocessor selects one target reference point from among the plurality of reference points 99 based on the position of the virtual camera determined based on the position of the moving object 98. Here, the microprocessor selects the reference point 99 having the longest distance from the virtual camera among the reference points 99 within the visual field range of the virtual camera as the attention reference point. In step S104, the microprocessor determines the attention area 40 based on the position of the attention reference point. Specifically, the microprocessor performs screen coordinate conversion on the position of the reference point of interest, and determines an area in a predetermined range including the position after the screen conversion as the attention area 40. An example of the attention area 40 at this time is shown in FIG. Even in this case, it is possible to determine an area that is highly likely to be noticed by the user as the attention area 40. Here, the case where the racing game realized in the game system 100 is a third-person viewpoint racing game has been described. However, in the racing game realized in the game system 100, for example, the virtual camera is a moving object 98. It may be a first-person lemma game set at a representative point (for example, near the driver's seat). In this case, both the virtual camera and the moving object 98 correspond to the “movement target”.

[Embodiment 2]
Hereinafter, an example of Embodiment 2 of the present invention will be described. Also in the present embodiment, the game system 100 includes the game server 2 and at least one game terminal 4 as in the first embodiment. Here, it is assumed that the game system 100 includes one game terminal 4. The configurations of the game server 2 and the game terminal 4 are the same as those in the first embodiment. However, the game terminal 4 includes an interface for the user to specify a position on the display, and transmits a screen coordinate value indicating the user's specified position to the game server 2 at every predetermined time. Here, a case will be described in which a touch panel installed on a display is used as the interface. As the interface, a cursor for guiding the position on the display, an operation unit for moving the cursor (for example, a mouse), and an operation unit for instructing to set the cursor position as an instruction position may be used. Good.

  In the present embodiment, the game server 2 receives the user's designated position transmitted from the game terminal 4 every predetermined time, and causes the game terminal 4 to display a game image including the locus image 42 of the user's designated position. Game image data 50 is generated. FIG. 13A shows an example of a game image displayed on the display of the game terminal 4.

  Also in this embodiment, the data amount of the game image data 50 is reduced, and the change of the trajectory image 42 due to the movement of the designated position is promptly reflected on the display. In addition, the user is highly likely to pay attention to the periphery of the trajectory image 42. Therefore, in the present embodiment, the attention area 40 is set around the trajectory image 42 so that the attention area 40 is displayed with higher image quality than the other areas (see FIG. 13B).

  That is, the microprocessor executes processing described below at predetermined time intervals based on the game program read from the optical disc.

  The microprocessor (history generation means) generates history data indicating the history of the user's designated position based on the designated position received from the game terminal 4. Here, the history data is at most N designated position groups stored in the main memory. Each time the microprocessor receives the designated position from the game terminal 4, the microprocessor stores the designated position in the main memory, thereby generating history data. When the N instruction positions are already stored in the main memory, the microprocessor deletes the oldest instruction position from the main memory and then stores the instruction position received from the game terminal 4 in the main memory.

  Further, the microprocessor (basic game image generating means) generates basic game image data 60 indicating a basic game image including an image indicating the user's designated position based on the designated position received from the game terminal 4. For example, the microprocessor generates, as basic game image data 60, bitmap data of a basic game image including a trajectory image 42 that connects designated position groups included in history data.

  Then, the microprocessor (attention area determination means) determines the attention area 40 in the basic game image based on the history data. For example, the microprocessor sets a point A having the maximum value of the X coordinate of the designated position group as its X coordinate, the maximum value of the Y coordinate of the designated position group as its Y coordinate, and the maximum value of the X coordinate of the designated position group. The X coordinate, the point B having the Y coordinate minimum value of the designated position group as the Y coordinate, the X coordinate minimum value of the designated position group as the X coordinate, and the minimum Y coordinate value of the designated position group as the X coordinate. A rectangular region having a vertex at a point C having a Y coordinate and a point D having the minimum value of the X coordinate of the designated position group as its X coordinate and the maximum value of the Y coordinate of the designated position group as its Y coordinate, The region of interest 40 is determined.

  Then, the microprocessor (game image generating means) generates game image data 50 in the same manner as in step S105 of the first embodiment, and transmits the game image data 50 to the game terminal 4.

  Note that the user is highly likely to pay attention to the point to move the indicated position. Therefore, the microprocessor uses the latest indication position stored in the history data (hereinafter referred to as the latest indication position) and the indication position stored in the history data immediately before the latest indication position (hereinafter referred to as the previous indication position). And a position advanced a predetermined distance from the latest designated position in a direction from the previous designated position to the latest designated position. On this basis, the microprocessor may determine a region in a predetermined range including the calculated position as the attention region 40.

  FIG. 14 is a functional block diagram showing functions related to the present invention among the functions realized by the game server 2 according to the present embodiment. As shown in FIG. 14, the game server 2 includes an indicated position acquisition unit 30, a history generation unit 32, a basic game image data generation unit 22, an attention area determination unit 24, a game image data generation unit 26, a game An image data transmission unit 28. The functions of the game image data generation unit 26 and the game image data transmission unit 28 are the same as those in the first embodiment.

  The indicated position acquisition unit 30 is realized by, for example, a microprocessor or a communication interface. The designated position acquisition unit 30 acquires a user's designated position. For example, the designated position acquisition unit 30 receives the user's designated position from the game terminal 4.

  The history generation unit 32 is realized by, for example, a microprocessor or main memory. The history generation unit 32 generates, for example, history data indicating a user's past designated position group based on the designated position acquired by the designated position acquisition unit 30.

  The basic game image data generation unit 22 is realized by a microprocessor or the like, for example. The basic game image data generation unit 22 generates basic game image data 60 indicating a basic game image including an image indicating the designated position, based on the designated position acquired by the designated position obtaining unit 30. For example, the basic game image data generation unit 22 is based on the history data generated by the history generation unit 32, and the basic game image data indicating the basic game image including the trajectory image 42 that connects the past designated position groups of the user. 60 is generated.

  The attention area determination unit 24 is realized by, for example, a microprocessor. The attention area determination unit 24 determines the attention area 40 in the basic game image based on the instruction position acquired by the instruction position acquisition unit 30. For example, the attention area determination unit 24 determines an area including the user's past designated position group as the attention area 40 based on the history data generated by the history generation unit 32.

  As described above, also in the second embodiment, the data amount of the game image data 50 is reduced from the data amount of the basic game image data 60. The image quality in the attention area is maintained higher than the image quality outside the attention area. As a result, the user is prevented from feeling stress.

  Note that the present invention is not limited to the embodiment described above.

  For example, past basic game image data 60 may be stored. On this basis, when generating the current basic game image data 60, the microprocessor generates the basic game image (hereinafter referred to as the current basic game image) indicated by the current basic game image data 60 and the past basic game image data. You may make it compare with the basic game image which 60 shows (henceforth a past basic game image). Then, the microprocessor may execute the steps after S103 only when the current basic game image has changed from the past basic game image. In this case, after dividing the basic game image into a plurality of block areas, the comparison between the current basic game image and the previous basic game image is performed, and the current basic game image is the past basic game image. The execution of the steps after S103 in the case where the change has occurred may be sequentially executed for each block area.

  The game system 100 is not limited to a system including a stationary game machine and a portable game machine. For example, the game system 100 may be a game system including a game image transmission device other than a stationary game machine and an image display device other than a portable game machine. For example, a game system using a stationary game machine as the game image transmission device and a projector as the image display device may be used. The present invention can also be applied to a system including an image transmission device that transmits image data other than the game image data 50 and an image display device that receives and displays the image data.

It is a figure which shows the structure of the game system containing the game server which concerns on embodiment of this invention. It is a figure which shows an example of game space. It is a figure which shows an example of the memory content of game situation data. It is a flowchart figure which shows the process which the game server which concerns on embodiment of this invention performs. It is a figure which shows an example of an attention area. It is a figure which shows an example of an attention area. It is a figure for demonstrating the aspect which produces | generates game image data. It is a figure for demonstrating the aspect which produces | generates game image data. It is a figure for demonstrating the aspect which produces | generates game image data. It is a figure which shows an example of selection control data. It is a figure which shows the functional block of the game server which concerns on embodiment of this invention. It is a figure which shows an example of an attention area. It is a figure for demonstrating a mode that an attention area is determined. It is a figure which shows the functional block of the game server which concerns on embodiment of this invention.

Explanation of symbols

  2 game server, 4 game terminal, 10 player object, 12 ball object, 14 field object, 15 half line, 16 goal object, 17 goal line, 18 virtual camera, 20 game situation data storage unit, 22 basic game image data generation unit , 24 attention area determination section, 26 game image data generation section, 28 game image data transmission section, 30 pointing position acquisition section, 32 history generation section, 40 attention area, 42 locus image, 50 game image data, 60 basic game image data 62, 64, 66, 68, 70, 72, 74, 76, 78, 80 Image data, 98 Moving object, 99 Reference point, 100 Game system, A, B, C, D point.

Claims (17)

A game image transmission device that transmits game image data indicating a game image of a game to be moved to an image display device,
Position storage means for storing the position of the moving object;
Basic game image generation means for generating basic game image data indicating a basic game image based on the position of the moving object stored in the position storage means;
Attention area determination means for determining an attention area in the basic game image based on the position of the movement target stored in the position storage means;
Based on the basic game image data, the image data within the attention area for displaying the image within the attention area on the image display device, and the image outside the attention area with lower image quality than the image within the attention area. Game image generation means for generating image data outside the attention area to be displayed on the image display device;
Game image transmission means for transmitting the image data within the attention area generated by the game image generation means and the image data outside the attention area generated by the game image generation means to the image display device as the game image data. When,
A game image transmission device comprising: The basic game image generation means includes:
Obtaining means for obtaining the direction or moving direction or moving speed of the moving object;
Means for generating the basic game image data based on the direction or moving direction or moving speed of the moving object acquired by the acquiring means and the position of the moving object stored in the position storage means; The region of interest determination means includes the region of interest based on the position of the movement target stored in the position storage unit and the movement direction or speed of the movement target acquired by the acquisition unit. To decide,
The game image transmitting apparatus according to claim 1. The game is a sport game performed using a play object in which a plurality of player characters appear and move,
The moving object is the player character,
The position storage means stores the position of the play object and the positions of the plurality of player characters,
Further comprising attention player selection means for selecting at least one attention player character from the plurality of player characters based on the position of the play object or the player character holding the play object,
The attention area determination means determines the attention area based on a position of at least one attention player character selected by the attention player selection means;
The game image transmitting apparatus according to claim 1, wherein The notable player selecting means selects at least one notable player character from the plurality of player characters based on the distance to the play object or the player character holding the play object,
The game image transmitting device according to claim 3. The game is a sport game to be played between the two teams,
The game is a sports game in which a scoring event of one team occurs when the play object moves to an event occurrence area corresponding to one team,
When the player character of one team holds the play object, the attention player selection means determines the position of the player character or the play object held by the player character and the one team. Selecting at least one notable player character from among the player characters located within the corresponding event occurrence region and
The game image transmitting device according to claim 3. The game is a sport game to be played between the two teams,
The game is a sports game in which a scoring event of one team occurs when the play object moves to an event occurrence area corresponding to one team,
And further including means for storing the play object or the condition relating to the position of the player character holding the play object and the selection information relating to the selection of the attention player character in association with each other,
The attention player selection means is associated with the condition that the position of the play object or the player character holding the play object is satisfied when the play object is held by the player character. Selecting an attention player character based on the selection information;
The game image transmitting device according to claim 3. The attention area determination means is based on the position of the attention player character selected by the attention player selection means and the position of the play object or the player character holding the play object. To determine the
The game image transmitting device according to claim 3, wherein The game image generation means includes
First image generation means for generating image data formed by compressing the basic game image data by a first image compression method as the non-attention area image data;
Based on the basic game image data and the image data generated by the first image generating means, the region of interest of the basic game image and the image data generated by the first image generating means are indicated. Second image generating means for generating image data indicating a difference image from the region of interest of the image,
The game image transmission means obtains the image data itself generated by the second image generation means or the image data generated by the second image generation means with a lower compression rate than the first image compression method. Transmitting the image data compressed by the second image compression method as the in-region image data,
The game image transmission device according to claim 1, wherein The game image generation means includes
First image generation means for generating image data indicating an image in the attention area of the basic game image based on the basic game image data;
Based on the basic game image data, second image generation means for generating image data indicating an image obtained by setting the region of interest of the basic game image to a predetermined color;
Generating, based on the image data generated by the second image generation means, image data obtained by compressing the image data by the first image compression method as the non-target area image data,
The game image transmission means obtains the image data itself generated by the first image generation means or the image data generated by the first image generation means with a lower compression rate than the first image compression method. Transmitting the image data compressed using the second image compression method as the image data within the region of interest,
The game image transmission device according to claim 1, wherein The game image generation means includes
First image generation means for generating image data indicating an image formed by setting a region of interest of the basic game image in a predetermined color based on the basic game image data;
Second image generation means for generating image data formed by compressing the image data generated by the first image generation means by the first image compression method as the non-target area image data;
Based on the basic game image data and the image data generated by the second image generating means, the region of interest of the basic game image and the image data generated by the second image generating means are indicated. And third image generation means for generating image data indicating a difference image from the region of interest of the image,
The game image transmission means compresses the image data itself generated by the third image generation means or the image data by a second image compression method capable of obtaining a compression rate lower than that of the first image compression method. Transmitting the image data as the image data within the region of interest,
The game image transmission device according to claim 1, wherein The first image generating means determines a color to be set in the attention area of the basic game image based on a color value of each pixel in the attention area of the basic game image;
The game image transmitting apparatus according to claim 10. A control method of a game image transmission device for transmitting game image data indicating a game image of a game to be moved to an image display device,
A position storage step of storing the position of the moving object in a position storage means;
A basic game image generation step of generating basic game image data indicating a basic game image based on the position of the moving object stored in the position storage means;
An attention area determination step for determining an attention area in the basic game image based on the position of the movement target stored in the position storage means;
Based on the basic game image data, the image data within the attention area for displaying the image within the attention area on the image display device, and the image outside the attention area with lower image quality than the image within the attention area. A game image generation step for generating out-of-focus area image data to be displayed on the image display device;
A game image transmission step of transmitting the image data within the attention area generated by the game image generation step and the image data outside the attention area generated by the game image generation step to the image display device as the game image data; ,
The control method characterized by including. A program that causes a computer to function as a game image transmission device that transmits game image data indicating a game image of a game to be moved to an image display device,
Position storage means for storing the position of the moving object;
Basic game image generation means for generating original game data indicating a basic game image based on the position of the moving object stored in the position storage means;
Attention area determination means for determining an attention area in the basic game image based on the position of the movement target stored in the position storage means;
Based on the basic game image data, the image data within the attention area for displaying the image within the attention area on the image display device, and the image outside the attention area with lower image quality than the image within the attention area. Game image generation means for generating image data outside the region of interest for display on the image display device;
Game image transmission means for transmitting the image data within the attention area generated by the game image generation means and the image data outside the attention area generated by the game image generation means to the image display device as the game image data;
As a program that allows the computer to function. A game image transmission device for transmitting game image data indicating a game image including an image indicating a user's designated position to an image display device,
Designated position obtaining means for obtaining the designated position of the user;
Basic game image generation means for generating basic game image data indicating a basic game image including an image indicating a user's indicated position based on the indicated position acquired by the indicated position acquisition means;
Attention area determination means for determining an attention area in the basic game image based on the indicated position acquired by the indicated position acquisition means;
Based on the basic game image data, the image data within the attention area for displaying the image within the attention area on the image display device, and the image outside the attention area with lower image quality than the image within the attention area. Game image generation means for generating image data outside the attention area to be displayed on the image display device;
Game image transmission means for transmitting the image data within the attention area generated by the game image generation means and the image data outside the attention area generated by the game image generation means to the image display device as the game image data. ,
A game image transmission device comprising: Further includes history generation means for generating history data relating to the history of the indicated position acquired by the indicated position acquisition means,
The attention area determining means determines the attention area based on the history data;
The game image transmitting device according to claim 14. An instruction position acquisition step of acquiring an instruction position of the user;
A basic game image generating step for generating basic game image data indicating a basic game image including an image indicating a user's indicated position based on the indicated position acquired by the indicated position acquiring step;
An attention area determination step for determining an attention area in the basic game image based on the instruction position acquired by the instruction position acquisition step;
Based on the basic game image data, the image data within the attention area for causing the image display device to display the image within the attention area, and the image outside the attention area at a lower image quality than the image within the attention area. A game image generation step for generating image data outside the region of interest for display on the image display device;
A game image transmission step of transmitting the image data within the attention area generated by the game image generation step and the image data outside the attention area generated by the game image generation step to the image display device as game image data;
A control method for a game image transmitting apparatus. Designated position obtaining means for obtaining the designated position of the user;
Basic game image generation means for generating basic game image data indicating a basic game image including an image indicating a user's indicated position based on the indicated position acquired by the indicated position acquisition means;
Attention area determination means for determining an attention area in the basic game image based on the instruction position acquired by the instruction position acquisition means;
Based on the basic game image data, the image data within the attention area for causing the image display device to display the image within the attention area, and the image outside the attention area at a lower image quality than the image within the attention area. Game image generation means for generating image data outside the attention area to be displayed on the image display device,
Game image transmission means for transmitting the image data within the attention area generated by the game image generation means and the image data outside the attention area generated by the game image generation means to the image display device as game image data,
As a program that allows the computer to function.

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