JP2007301048A - Game device and game program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game device and a game program enabling novel operation by using an input device that is used by a user's hold with the hand. <P>SOLUTION: An indication position is computed from a position of a target to be picked up in a pick-up image of an image pick-up device provided on a controller. An inclination of the controller is computed from acceleration detected by an acceleration sensor provided on the controller. A position and a posture of an object in a virtual game space is determined from the computed indication position and the computed inclination of the controller, and the virtual game space including the object is displayed on a screen. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a game device and a game program, and more particularly to a game device and a game program for performing a game process according to the movement of an input device including an acceleration sensor and an imaging device.

  Conventionally, a technique for designating a specific position on a display screen using an optical pointing system has been considered. For example, the optical pointing system described in Patent Document 1 is a system used in a conference or the like for a plurality of viewers. In this system, a light-emitting element is provided in the vicinity of the display screen, and an imaging device using a photoelectric conversion element is built in the indicator. When the indicator designates an arbitrary position on the display screen using the indicator, the indicator images the light emitting element by the imaging device, and calculates a position designated by the indicator based on the captured image. By displaying the mark at the calculated position, the position that the instructor wants to indicate is indicated by the mark.

In addition, a game controller using an optical pointing system similar to the above is considered (for example, see Patent Document 2). This controller has a gun (handgun) shape and is used in a shooting game. This shooting game is a game in which a gun is used to shoot at a target displayed on the screen. The gun is used to designate an arbitrary position on the screen (a position where a bullet flies). The gun-type controller has a built-in CCD camera, and the CCD camera images the light emitters arranged at four locations around the screen. The controller calculates the orientation, rotation, and tilt of the gun using the captured image. By using the calculation result, it is determined whether or not the target has been hit by detecting whether or not the cancer is correctly facing the target displayed on the screen. With the above configuration, it is possible to realize a game system in which a game operation is performed by moving a controller (gun) itself held by a player.
JP-A-6-308879 JP-A-8-71252

  In the above technique, an input device (the above-mentioned indicator or gun-type controller) that is used by the user in hand is only used for designating a position on the display screen. That is, with the above indicator and gun-type controller, only a single operation of specifying a position on the display screen is possible, and other operations cannot be performed. For example, when the input device is used for a game device, only one type of simple game operation of specifying a position on the display screen can be performed. For this reason, since the game operation is simple, the game itself has simple contents and lacks interest.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a game apparatus and a game program that enable a new operation that has not been possible conventionally by using an input device that a user holds in hand.

  The present invention employs the following configuration in order to solve the above problems. Note that the reference numerals in parentheses and supplementary explanations in this section show an example of the correspondence with the embodiments described later in order to help understanding of the present invention, and do not limit the present invention in any way. .

  The game program according to the present invention includes an input device (7) including an acceleration sensor (37) capable of detecting an acceleration relating to at least one axis and an imaging device (40) for imaging a predetermined imaging target (8a, 8b). ) Is a game program that is executed by the computer (10) of the game apparatus (3) that performs a game process in accordance with the movement of the player. The game program causes the computer to execute a data acquisition step (S10), an indicated position calculation step (S12), an inclination calculation step (S16), a game processing step (S14, S18), and a display control step (S20). It is a game program for. The data acquisition step is a step of acquiring or calculating the position of the imaging target and the acceleration detected by the acceleration sensor in the captured image of the imaging device. The indicated position calculating step is a step of calculating an indicated position that changes with the movement of the input device from the position of the imaging target in the captured image. The tilt calculating step is a step of calculating the tilt of the input device from the acceleration detected by the acceleration sensor. The game processing step is a step of performing predetermined game processing based on the indicated position and the tilt of the input device. The display control step is a step of causing the display device to display a game space reflecting the result of the game process. Note that the acceleration sensor and the imaging device may be provided in a common housing, or may be separately provided in two housings coupled by a flexible cable.

  The game processing step determines an operation target object in the game space from the indicated position or determines a position of the operation target object, and determines an attitude of the operation target object from the tilt of the input device. May be included.

  Further, the acceleration sensor can detect at least acceleration related to two axes (X axis, Y axis) perpendicular to the imaging direction (optical axis direction, Z axis direction) of the imaging device, and the inclination calculating step includes Imaging that calculates inclinations (θ1, θ2, θ3) of the input device about the imaging direction of the imaging device from accelerations about two axes perpendicular to the imaging direction of the imaging device detected by the acceleration sensor Including a step of calculating a tilt around a direction axis, wherein the game processing step determines an operation target object in the game space from the indicated position or determines a position of the operation target object, and the input with the imaging direction of the imaging device as an axis An object processing step for determining the posture of the operation target object from the tilt of the apparatus may be included. As a result, the player can easily change only the posture of the object without changing the indicated position by the operation of twisting the input device around the imaging direction axis, and therefore easily and individually control the position and posture of the object. be able to.

  In the game processing step, the orientation of the virtual camera (VC) in the game space is determined from the inclination of the input device, and the position of the designated position in the game space according to the determined orientation of the virtual camera. May include a camera processing step (S34, S36).

  In addition, the imaging target is a pair of imaging targets (8a, 8b) arranged apart from each other, and the game program calculates the input device and the pair based on the distance between the pair of imaging targets in the captured image. The computer further executes a distance calculating step of calculating a distance between the imaging target and the game processing step, in addition to the pointing position and the inclination of the input device, The game process may be performed based on the distance to the imaging target.

  The game apparatus according to the present invention includes an acceleration sensor (37) capable of detecting an acceleration related to at least one axis, an imaging device (40) for imaging a predetermined imaging target (8a, 8b), and an indicated position calculation means (10 , S12), inclination calculation means (10, S16), game processing means (10, S14, S18), and display control means (10, S20). The indicated position calculating means is a means for calculating an indicated position that changes with the movement of the imaging device from the position of the imaging target in the captured image of the imaging device. The inclination calculating means is means for calculating the inclination of the acceleration sensor from the acceleration detected by the acceleration sensor. The game processing means is means for performing predetermined game processing based on the indicated position and the inclination of the acceleration sensor. The display control means is means for causing the display device to display a game space reflecting the result of the game processing.

  The game processing means determines an operation target object in the game space from the indicated position or determines a position of the operation target object, and determines an attitude of the operation target object from an inclination of the acceleration sensor. May be included.

  In addition, the acceleration sensor can detect at least acceleration relating to two axes (X axis, Y axis) perpendicular to the imaging direction (optical axis direction, Z axis direction) of the imaging device, and the inclination calculating means Imaging that calculates inclinations (θ1, θ2, θ3) of the acceleration sensor about the imaging direction of the imaging device from accelerations about two axes perpendicular to the imaging direction of the imaging device detected by the acceleration sensor The game processing means determines the operation target object in the game space or determines the position of the operation target object from the indicated position, and the acceleration about the imaging direction of the imaging device An object processing means for determining the posture of the operation target object from the tilt of the sensor may be included.

  The game processing means determines the orientation of the virtual camera (VC) in the game space from the inclination of the acceleration sensor, and the position of the indicated position in the game space according to the determined orientation of the virtual camera. Camera processing means (10, S34, S36) for determining

  The acceleration sensor may be a three-axis acceleration sensor capable of detecting an acceleration related to three axes (X-axis, Y-axis, and Z-axis), and the inclination calculation unit may calculate a three-dimensional inclination.

  In addition, the imaging target is a pair of imaging targets (8a, 8b) that are arranged apart from each other, and the game device determines the imaging device and the pair from the distance between the pair of imaging targets in the captured image. Distance calculating means for calculating a distance between the imaging device and the imaging target, wherein the game processing means further includes the imaging device and the pair of imaging targets in addition to the indicated position and the inclination of the acceleration sensor. The game processing may be performed based on the distance between them.

  According to the present invention, the game process is performed based on the indicated position calculated from the position of the imaging target in the captured image of the imaging device and the inclination of the input device (or acceleration sensor) calculated from the acceleration detected by the acceleration sensor. Since it is executed, a game operation that has never been possible becomes possible.

  A game system 1 including a game device according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is an external view of the game system 1. Hereinafter, the game apparatus and the game program of the present embodiment will be described using a stationary game apparatus as an example.

  In FIG. 1, the game system 1 includes a game device 3 and a controller 7. The controller 7 is an input device that provides the game device 3 with operation data indicating the operation content of the controller 7. The game apparatus 3 executes a game process to be described later according to the operation data. In the present embodiment, the game apparatus 3 is a stationary apparatus, but in other embodiments, it may be a portable apparatus or an arcade game apparatus. The game apparatus 3 is connected to a display device 2 (hereinafter referred to as a monitor) 2 such as a home television receiver equipped with a speaker via a connection cord. The monitor 2 displays a game image obtained as a result of the game process. Also, two markers 8a and 8b are installed around the monitor 2 (upper side of the screen in the figure). The markers 8a and 8b are specifically infrared LEDs, and output infrared light toward the front of the monitor 2, respectively.

  A communication unit 6 is connected to the game apparatus 3 via a connection terminal. The communication unit 6 receives operation data wirelessly transmitted from the controller 7 and transmits data to the controller 7 according to an instruction from the game apparatus 3. Thus, the controller 7 and the game apparatus 3 are connected by wireless communication. In other embodiments, the controller 7 and the game apparatus 3 may be connected by wire.

  An optical disk 4, which is an example of an information storage medium that can be used interchangeably with the game apparatus 3, is attached to and detached from the game apparatus 3. An upper main surface of the game apparatus 3 is provided with a power ON / OFF switch of the game apparatus 3, a game process reset switch, and an OPEN switch for opening the lid of the game apparatus 3. Here, when the player presses the OPEN switch, the lid is opened, and the optical disk 4 can be attached and detached.

  An external memory card 5 equipped with a backup memory or the like for storing save data or the like is detachably attached to the game apparatus 3 as necessary. The game apparatus 3 displays a result as a game image on the monitor 2 by executing a game program or the like stored on the optical disc 4. Furthermore, the game apparatus 3 can reproduce the game state executed in the past by using the save data stored in the external memory card 5 and display the game image on the monitor 2. Then, the player of the game apparatus 3 can enjoy the progress of the game by operating the controller 7 while viewing the game image displayed on the monitor 2.

  The controller 7 wirelessly transmits operation data to the game apparatus 3 to which the communication unit 6 is connected, using, for example, Bluetooth (registered trademark) technology. The controller 7 is provided with an operation unit including a plurality of operation buttons (operation keys). Further, as will be apparent from the description below, the controller 7 includes an imaging information calculation unit 35 (described later) for capturing an image viewed from the controller 7. The imaging information calculation unit 35 captures images of the markers 8a and 8b using the markers 8a and 8b arranged around the monitor 2 as imaging targets. Data relating to the captured image is transmitted to the game apparatus 3 as part of the operation data. The game apparatus 3 can execute a process according to the position and orientation of the controller 7 by a calculation process based on the data related to the image. The controller 7 also includes an acceleration sensor 37 (described later) that detects acceleration in the linear direction. Data indicating the acceleration detected by the acceleration sensor 37 is transmitted to the game apparatus 3 as part of the operation data. The game apparatus 3 can calculate the movement and / or posture of the controller 7 based on the data indicating the acceleration, and can appropriately execute processing according to the movement and / or posture.

  Further, the controller 7 receives various data from the game apparatus 3 via the communication unit 6. Then, various operations are performed according to the received data. For example, when sound data is received from the game apparatus 3, the controller 7 outputs a sound corresponding to the sound data from the built-in speaker 49 (FIG. 6).

  Next, the configuration of the game apparatus 3 will be described with reference to FIG. FIG. 2 is a functional block diagram of the game apparatus 3.

  In FIG. 2, the game apparatus 3 includes, for example, a risk (RISC) CPU (Central Processing Unit) 10 that executes various programs. The CPU 10 executes a boot program stored in a boot ROM (not shown), initializes a memory such as the main memory 13, and executes a game program stored in the optical disc 4, and according to the game program. Game processing and the like. A GPU (Graphics Processing Unit) 12, a main memory 13, a DSP (Digital Signal Processor) 14, and an ARAM (Audio RAM) 15 are connected to the CPU 10 via a memory controller 11. Further, a controller I / F (interface) 16, a video I / F 17, an external memory I / F 18, an audio I / F 19, and a disk I / F 20 are connected to the memory controller 11 via a predetermined bus. The communication unit 6, the monitor 2, the external memory card 5, the speaker 22, and the disk drive 21 are connected.

  The GPU 12 performs image processing based on a command from the CPU 10, and is configured of a semiconductor chip that performs calculation processing necessary for displaying 3D graphics, for example. The GPU 12 performs image processing using a memory dedicated to image processing (not shown) and a partial storage area of the main memory 13. The GPU 12 generates game image data and movie video to be displayed on the monitor 2 using these, and outputs them to the monitor 2 through the memory controller 11 and the video I / F 17 as appropriate.

  The main memory 13 is a storage area used by the CPU 10 and appropriately stores game programs and the like necessary for the processing of the CPU 10. For example, the main memory 13 stores a game program read from the optical disc 4 by the CPU 10 and various data. The game program and various data stored in the main memory 13 are executed by the CPU 10.

  The DSP 14 processes sound data generated in the CPU 10 when the game program is executed, and is connected to an ARAM 15 for storing the sound data. The ARAM 15 is used when the DSP 14 performs a predetermined process (for example, storing a pre-read game program or sound data). The DSP 14 reads the sound data stored in the ARAM 15 and causes the speaker 22 to output the sound data via the memory controller 11 and the audio I / F 19.

  The memory controller 11 comprehensively controls data transfer, and is connected to the various I / Fs 16 to 20 described above. The controller I / F 16 includes, for example, four controller I / Fs, and connects the external device and the game apparatus 3 that can be fitted to each other via a connector included in the controller I / F so as to communicate with each other. For example, the communication unit 6 is fitted with the connector and connected to the game apparatus 3 via the controller I / F 16. As described above, the communication unit 6 receives the operation data from the controller 7 and outputs the operation data to the CPU 10 via the controller I / F 16. When data such as sound data generated in the CPU 10 is transmitted to the controller 7, the data is output to the communication unit 6 via the controller I / F 16. The communication unit 6 transmits the data input from the controller I / F 16 to the controller 7. In another embodiment, the game apparatus 3 may have a configuration in which a communication module capable of communicating with the controller 7 is provided instead of the communication unit 6. In this case, operation data received by the communication module is output to the CPU 10 via a predetermined bus, and data to be transmitted to the controller 7 is transmitted from the communication module to the controller 7 via a predetermined bus. The monitor 2 is connected to the video I / F 17. The external memory I / F 18 is connected to the external memory card 5 and can access a backup memory or the like provided in the external memory card 5. A speaker 22 incorporated in the monitor 2 is connected to the audio I / F 19, and sound data read by the DSP 14 from the ARAM 15 and sound data directly output from the disk drive 21 are output from the speaker 22. A disk drive 21 is connected to the disk I / F 20. The disk drive 21 reads data stored on the optical disk 4 arranged at a predetermined reading position, and outputs it to the bus of the game apparatus 3 and the audio I / F 19.

  Next, the controller 7 will be described with reference to FIGS. 3 and 4 are perspective views showing the external configuration of the controller 7. FIG. FIG. 3 is a perspective view of the controller 7 as viewed from the upper rear side, and FIG. 4 is a perspective view of the controller 7 as viewed from the lower front side.

  3 and 4, the controller 7 includes a housing 31 formed by plastic molding, for example. The housing 31 has a substantially rectangular parallelepiped shape whose longitudinal direction is the front-rear direction (the z-axis direction shown in FIG. 3), and is a size that can be gripped with one hand of an adult or a child as a whole. A player can perform a game operation by pressing a button provided on the controller 7 and moving the controller 7 to change its position and posture. For example, the player can perform an operation on the operation target by an operation of rotating the controller 7 around the longitudinal direction or changing a position on the screen indicated by the controller 7. Here, “the position on the screen indicated by the controller 7” is ideally a position where the straight line extending in the longitudinal direction from the front end of the controller 7 and the screen of the monitor 2 intersect. It is not necessary to be the position, and it is only necessary that the surrounding position can be calculated by the game apparatus 3. Hereinafter, the position on the screen pointed to by the controller 7 will be referred to as “indicated position (of the controller 7)”. Further, the longitudinal direction of the controller 7 (housing 31) may be referred to as “indicated direction (of the controller 7)”.

  The housing 31 is provided with a plurality of operation buttons. As shown in FIG. 3, a cross key 32a, a first button 32b, a second button 32c, an A button 32d, a minus button 32e, a home button 32f, and a plus button 32g are provided on the upper surface of the housing 31. On the other hand, as shown in FIG. 4, a recess is formed on the lower surface of the housing 31, and a B button 32i is provided on the rear inclined surface of the recess. A function corresponding to the game program executed by the game apparatus 3 is appropriately assigned to each of the operation buttons 32a to 32i. In addition, a power button 32 h for remotely turning on / off the main body of the game apparatus 3 is provided on the upper surface of the housing 31. The home button 32 f and the power source 32 h are embedded in the upper surface of the housing 31. This can prevent the player from pressing the home button 32f or the power source 32h by mistake.

  A connector 33 is provided on the rear surface of the housing 31. The connector 33 is used to connect another device to the controller 7. For example, a sub-control unit having a stick that can be tilted at 360 ° is connected via a cable, direction input is performed in accordance with an operation on the sub-control unit, and at the same time, a predetermined on-screen display described later is performed. You may make it perform operation which designates a position. By using such a sub-control unit connected via a cable, it is possible to freely perform an operation of moving the controller 7 itself while performing direction input.

  A plurality (four in FIG. 3) of LEDs 34 are provided on the rear surface side of the upper surface of the housing 31. Here, a controller type (number) is assigned to the controller 7 in order to distinguish it from other controllers 7. The LED 34 is used to notify the player of the controller type currently set in the controller 7. Specifically, when operating data is transmitted from the controller 7 to the game apparatus 3, any one of the plurality of LEDs 34 is turned on according to the controller type.

  The controller 7 has an imaging information calculation unit 35 (FIG. 5B). As shown in FIG. 4, a light incident surface 35 a of the imaging information calculation unit 35 is provided on the front surface of the housing 31. The light incident surface 35a is made of a material that transmits at least infrared light from the markers 8a and 8b.

  Between the first button 32b and the home button 32f on the upper surface of the housing 71, a sound release hole for releasing sound from the speaker 49 (FIG. 5A) built in the controller 7 is formed.

  Next, the internal structure of the controller 7 will be described with reference to FIGS. 5A and 5B. 5A and 5B are diagrams showing the internal structure of the controller 7. FIG. 5A is a perspective view showing a state in which the upper housing (a part of the housing 31) of the controller 7 is removed. FIG. 5B is a perspective view showing a state where the lower casing (a part of the housing 31) of the controller 7 is removed. The perspective view shown to FIG. 5B is the perspective view which looked at the board | substrate 30 shown to FIG. 5A from the back surface.

  5A, a substrate 30 is fixed inside the housing 31, and operation buttons 32a to 32h, LEDs 34, an acceleration sensor 37, an antenna 45, an amplifier 48, a speaker 49, and the like are provided on the upper main surface of the substrate 30. Is provided. These are connected to a microcomputer (microcomputer) 42 (see FIG. 6) by wiring (not shown) formed on the substrate 30 and the like. In the present embodiment, the acceleration sensor 37 is disposed at a position shifted from the center of the controller 7 in the x-axis direction. This makes it easier to calculate the movement of the controller 7 when the controller 7 is rotated about the z axis. Further, the controller 7 functions as a wireless controller by the wireless module 44 and the antenna 45.

  On the other hand, in FIG. 5B, an imaging information calculation unit 35 is provided at the front edge on the lower main surface of the substrate 30. The imaging information calculation unit 35 includes an infrared filter 38, a lens 39, an imaging element 40 (for example, a CMOS image sensor or a CCD image sensor), and an image processing circuit 41 in order from the front of the controller 7. Attached to the surface.

  Further, the microcomputer 42, the sound IC 47, and the vibrator 50 are provided on the lower main surface of the substrate 30. The sound IC 47 is connected to the microcomputer 42 and the amplifier 48 by wiring formed on the substrate 30 or the like. The vibrator 50 is, for example, a vibration motor or a solenoid, and is connected to the microcomputer 42 by wiring formed on the substrate 30 or the like. The vibration is generated in the controller 7 when the vibrator 50 is actuated by an instruction from the microcomputer 42, so that the vibration is transmitted to the hand of the player holding the controller 7, and a so-called vibration-compatible game can be realized. In the present embodiment, the vibrator 50 is disposed slightly forward of the housing 31. That is, by arranging the vibrator 50 on the end side of the center of the controller 7, the entire controller 7 can be vibrated greatly by the vibration of the vibrator 50. The connector 33 is attached to the rear edge on the lower main surface of the substrate 30. 5A and 5B, the controller 7 includes a crystal resonator that generates a basic clock for the microcomputer 42.

  Note that the shape of the controller 7, the shape of each operation button, the number of acceleration sensors and vibrators, and the installation positions shown in FIGS. 3 to 5B are merely examples, and other shapes, numbers, and installation positions. However, it goes without saying that the present invention can be realized. Further, the position of the imaging information calculation unit 35 in the controller 7 (the light incident surface 35a of the imaging information calculation unit 35) does not have to be the front surface of the housing 31, and other surfaces can be used as long as light can be taken in from the outside of the housing 31. May be provided. At this time, the “instruction direction of the controller 7” is an imaging direction of the imaging device 40, specifically, a direction perpendicular to the light incident surface.

  FIG. 6 is a block diagram showing the configuration of the controller 7. The controller 7 includes an operation unit 32 (each operation button), an imaging information calculation unit 35, a communication unit 36, an acceleration sensor 37, and an audio output unit 46. In the present embodiment, since the output of the acceleration sensor 37 is not used for game processing, the controller 7 may be configured not to include the acceleration sensor 37.

  The operation unit 32 corresponds to each of the operation buttons 32a to 32i described above, and the microcomputer 42 of the communication unit 36 stores data indicating an input state (whether or not each operation button 32a to 32i is pressed) to each operation button 32a to 32i. Output to.

  The imaging information calculation unit 35 is a system for analyzing the image data captured by the imaging unit, discriminating a region having a high luminance in the image data, and calculating the position of the center of gravity, the size, etc. Since the imaging information calculation unit 35 has a sampling period of, for example, about 200 frames / second at the maximum, it can track and analyze even a relatively fast movement of the controller 7.

  The imaging information calculation unit 35 includes an infrared filter 38, a lens 39, an imaging element 40, and an image processing circuit 41. The infrared filter 38 allows only infrared light to pass from light incident from the front of the controller 7. The lens 39 collects the infrared light transmitted through the infrared filter 38 and makes it incident on the image sensor 40. The image sensor 40 is a solid-state image sensor such as a CMOS sensor or a CCD sensor, for example, and receives the infrared light collected by the lens 39 and outputs an image signal. Here, the markers 8 a and 8 b arranged in the vicinity of the display screen of the monitor 2 are infrared LEDs that output infrared light toward the front of the monitor 2. Therefore, by providing the infrared filter 38, the image sensor 40 receives only the infrared light that has passed through the infrared filter 38 and generates image data, so that the images of the markers 8a and 8b can be captured more accurately. Hereinafter, an image captured by the image sensor 40 is referred to as a captured image. Image data generated by the image sensor 40 is processed by the image processing circuit 41. The image processing circuit 41 calculates the position of the imaging target (markers 8a and 8b) in the captured image. Hereinafter, a method of calculating the position of the imaging target will be described with reference to FIG.

  FIG. 7 is a diagram illustrating an example of a captured image. In the captured image A1 shown in FIG. 7, the image 8a 'of the marker 8a and the image 8b' of the marker 8b are arranged side by side. When a captured image is input, the image processing circuit 41 calculates a coordinate indicating the position of a region that matches a predetermined condition in the captured image for each region. Here, the predetermined condition is a condition for specifying an image to be captured (target image). The specific content of the predetermined condition is that the luminance is a region (high luminance region) having a predetermined value or more, and the size of the region is a size within a predetermined range. The predetermined condition may be a condition for specifying an imaging target, and in other embodiments, may include a condition related to the color of the image.

  When calculating the position of the target image, first, the image processing circuit 41 specifies the high-intensity region as a target image candidate from the region of the captured image. This is because the target image appears as a high luminance area in the image data of the captured image. Next, the image processing circuit 41 performs determination processing for determining whether or not the high luminance area is a target image based on the size of the specified high luminance area. In addition to the images 8a ′ and 8b ′ of the two markers 8a and 8b that are target images, the captured image may include images other than the target image due to sunlight from a window or light from a fluorescent lamp in a room. is there. In this case, images other than the marker images 8a 'and 8b' also appear as high luminance areas. The determination process is a process for distinguishing between the marker images 8a ′ and 8b ′, which are target images, and other images, and accurately specifying the target image. Specifically, in the determination process, it is determined whether or not the specified high luminance area has a size within a predetermined range. If the high brightness area is a size within the predetermined range, the high brightness area is determined to represent the target image. If the high brightness area is not a size within the predetermined range, the high brightness area is other than the target image. It is determined that the image is represented.

  Further, as a result of the above determination processing, the image processing circuit 41 calculates the position of the high luminance area (specifically, the position of the center of gravity of the high luminance area) for the high luminance area determined to represent the target image. . Note that the position of the high luminance region can be calculated on a more detailed scale than the resolution of the image sensor 40. For example, even when the resolution of the captured image captured by the image sensor 40 is 126 × 96, the position of the high-luminance region can be calculated on a scale of 1024 × 768. At this time, the coordinates of the position of the high luminance region are expressed by integer values from (0, 0) to (1024, 768). As shown in FIG. 7, the position in the captured image is represented by a coordinate system (XY coordinate system) in which the upper left of the captured image is the origin, the downward direction is the Y axis positive direction, and the right direction is the X axis positive direction. Shall.

  As described above, the image processing circuit 41 calculates the coordinates indicating the position of the region that matches the predetermined condition in the captured image for each region. The image processing circuit 41 outputs the calculated coordinates to the microcomputer 42 of the communication unit 36. The coordinate data is transmitted to the game apparatus 3 as operation data by the microcomputer 42. Hereinafter, the coordinates are referred to as “marker coordinates”. Since the marker coordinates change corresponding to the orientation (posture) and position of the controller 7 itself, the game apparatus 3 can calculate the orientation and position of the controller 7 using the marker coordinates.

  Returning to the description of FIG. 6, the acceleration sensor 37 detects the acceleration (including gravitational acceleration) of the controller 7, that is, detects the force (including gravity) applied to the controller 7. The acceleration sensor 37 detects the acceleration value in the linear direction along the sensing axis direction among the accelerations applied to the detection unit of the acceleration sensor 37. For example, in the case of a multi-axis acceleration sensor having two or more axes, component acceleration along each axis (linear acceleration) is detected as the acceleration applied to the detection unit of the acceleration sensor. For example, the triaxial or biaxial acceleration sensor 37 may be of the type available from Analog Devices, Inc. or ST Microelectronics NV.

  In the present embodiment, the acceleration sensor 37 has a vertical direction (y-axis direction shown in FIG. 3), a horizontal direction (x-axis direction shown in FIG. 3), and a front-back direction (z-axis direction shown in FIG. 3) with reference to the controller 7. ) Linear acceleration is detected in each of the three axis directions. Since the acceleration sensor 37 detects acceleration in the linear direction along each axis, the output from the acceleration sensor 37 represents the linear acceleration value of each of the three axes. That is, the detected acceleration is expressed as a three-dimensional vector in the xyz coordinate system set with the controller 7 as a reference. Data indicating the acceleration detected by the acceleration sensor 37 (acceleration data) is output to the communication unit 36. In the present embodiment, the communication unit 36 of the controller 7 sequentially outputs acceleration data to the game apparatus 3 (for example, once every 0.5 ms). The game apparatus 3 can calculate the moving direction and inclination (posture) of the controller 7 based on the acceleration data. Since the acceleration sensor 37 detects the acceleration of the linear component along each axis, the game apparatus 3 cannot directly detect the moving direction or inclination of the controller 7. For this reason, the moving direction and inclination of the device on which the acceleration sensor 37 is mounted are calculated by performing predetermined arithmetic processing on the acceleration detected for each axis of the acceleration sensor.

  The communication unit 36 includes a microcomputer 42, a memory 43, a wireless module 44, and an antenna 45. The microcomputer 42 controls the wireless module 44 that wirelessly transmits data acquired by the microcomputer 42 while using the memory 43 as a storage area when performing processing.

  Data output from the operation unit 32, the imaging information calculation unit 35, and the acceleration sensor 37 to the microcomputer 42 is temporarily stored in the memory 43. Here, the wireless transmission from the communication unit 36 to the communication unit 6 is performed at predetermined intervals, but the game processing is generally performed in units of 1/60 seconds (one frame time). It is preferable to perform transmission at a period equal to or shorter than this time. When the transmission timing to the communication unit 6 arrives, the microcomputer 42 outputs the data stored in the memory 43 to the wireless module 44 as operation data. The wireless module 44 modulates a carrier wave of a predetermined frequency with operation data using, for example, Bluetooth (registered trademark) technology, and radiates a weak radio signal from the antenna 45. That is, the operation data is modulated by the wireless module 44 into a weak radio signal and transmitted from the controller 7. The weak radio signal is received by the communication unit 6 on the game apparatus 3 side. By demodulating and decoding the received weak radio signal, the game apparatus 3 can acquire operation data. And CPU10 of the game device 3 performs a game process based on the acquired operation data and a game program.

  The game apparatus 3 transmits sound data to the controller 7 at an appropriate timing according to the game situation. Sound data transmitted from the game apparatus 3 is received by the antenna 45. The microcomputer 42 acquires sound data received by the antenna 45 via the wireless module 44. Further, the acquired sound data is output to the sound output unit 46.

  The audio output unit 46 includes a sound IC 47, an amplifier 48, and a speaker 49. When sound data is input from the microcomputer 42, the sound IC 47 performs predetermined processing on the sound data and outputs an audio signal to the speaker 49 via an amplifier. Thereby, the game apparatus 3 can output sounds such as game sound effects from the speaker 49 on the controller 7 side.

  By using the controller 7, the player can change the posture of the controller 7, move the position of the controller 7, or rotate the controller 7 in addition to the conventional general game operation of pressing each operation button. It is possible to perform game operations such as

  FIG. 8 is an illustrative view outlining a state when a game operation is performed using the controller 7. When playing a game using the controller 7 in the game system 1, the player holds the controller 7 with one hand as shown in FIG. In this embodiment, the player performs a game operation by designating an arbitrary position on the screen of the monitor 2 with the controller 7 held (directing the indicated position of the controller 7 to a desired position).

  Hereinafter, the details of the method for detecting the designated position of the controller 7 and the tilt of the controller 7 in the game apparatus 3 will be described.

(Indication position calculation method)
The game apparatus 3 can calculate the indicated position and the distance from the controller 7 to each of the markers 8a and 8b using the marker coordinate data included in the received operation data. FIG. 9 is a diagram illustrating changes in the captured image when the position and / or orientation of the controller 7 is changed. FIG. 9 shows the correspondence between the state of the controller and the captured image obtained in that state. In FIG. 9, a captured image when the controller 7 is in the state A is a captured image I1. In the captured image I1, the images 8a ′ and 8b ′ of the markers 8a and 8b, which are target images, are located near the center of the captured image I1. State A is a state in which the controller 7 points to an intermediate position between the marker 8a and the marker 8b.

  A state B shown in FIG. 9 is a state in which the controller 7 is translated in the right direction (X-axis positive direction) with the state A as a reference. In this state B, a captured image I3 is obtained by the imaging information calculation unit 35. In the captured image I3, the target images 8a 'and 8b' are translated in the left direction (x-axis negative direction) with reference to the captured image I1. Note that state B is a state in which the pointing direction of the controller 7 is directed rightward from state A. Here, not only when the controller 7 is translated in the right direction, but also by rotating the controller 7 around the Y axis, the indicated direction of the controller 7 can be directed to the right direction. Therefore, when the controller 7 is rotated about the Y axis, a captured image similar to the captured image I3 is obtained. As described above, when the controller 7 is moved (rotated) so that the pointing direction of the controller 7 is directed to the right, a captured image similar to the captured image I3 is obtained, that is, the target images 8a ′ and 8b ′ are translated. The obtained image is obtained. Therefore, the direction indicated by the controller 7 can be known by detecting the position of the target image in the captured image (in the example described later, the position of the midpoint between the images 8a 'and 8b').

  The state C shown in FIG. 9 is a state in which the controller 7 is moved away from the markers 8a and 8b with the state A as a reference (that is, translated in the backward direction). In this state C, the captured image calculation unit 35 obtains a captured image I4. In the captured image I4, the distance between the image 8a 'and the image 8b' is shorter than that of the captured image I1. Therefore, the length between the two marker images in the captured image (the length between the image 8a ′ and the image 8b ′; the size of the target image when the two target images are viewed together) is detected. Thus, the distance between the controller 7 and each of the markers 8a and 8b can be known. In other embodiments, when it is not necessary to know the distance between the controller and the marker, or when the distance can be calculated based on the size of the target image, one marker may be arranged.

(Slope calculation method)
The game apparatus 3 can calculate the inclination of the controller 7 (acceleration sensor 37) using the acceleration data included in the received operation data. FIG. 10 is a diagram illustrating changes in acceleration data when the inclination of the controller 7 (inclination around the Z axis) is changed. FIG. 10 shows the correspondence between the state of the controller and the X-axis value and the Y-axis value of the acceleration data obtained in that state. In FIG. 10, when the controller 7 is in the state A, the X-axis value of the acceleration data is 0 and the Y-axis value is −1 due to the influence of gravity. State A is a state when the player is holding the controller 7 so that the positive direction of the Y axis of the controller 7 is vertically upward.

  A state B shown in FIG. 10 is a state in which the player rotates the controller 7 clockwise about the Z axis by an angle θa (rotates clockwise in the positive direction of the Z axis) with the state A as a reference. In this state B, the vector indicated by the X-axis value and the Y-axis value of the acceleration data is rotated counterclockwise by an angle θa on the XY coordinate plane as compared with the state A. Therefore, the inclination of the controller 7 around the Z-axis can be known by detecting the direction of the vector indicated by the X-axis value and the Y-axis value of the acceleration data.

  A state C shown in FIG. 10 is a state in which the player rotates the controller 7 counterclockwise about the Z axis by an angle θb (rotates counterclockwise in the positive direction of the Z axis) with the state A as a reference. In this state C, the vector indicated by the X-axis value and the Y-axis value of the acceleration data is rotated clockwise by an angle θb on the XY coordinate plane as compared with the state A. Therefore, the inclination of the controller 7 around the Z-axis can be known by detecting the direction of the vector indicated by the X-axis value and the Y-axis value of the acceleration data.

  Although illustration is omitted, even when the player rotates the controller 7 counterclockwise by 90 ° or more around the Z axis (or right rotation) based on the state A, it is based on the X axis value and the Y axis value of the acceleration data. Thus, the rotation angle can be known. Therefore, by referring to the X-axis value and the Y-axis value of the acceleration data, the rotation angle around the Z-axis of the controller 7 when the state A is a reference is detected in the range of −180 ° to 180 °, that is, the entire circumference. can do.

  In FIG. 10, the rotation angle around the Z axis of the controller 7 based on the state A can also be detected by referring only to the magnitude of the X axis value of the acceleration data. In this case, however, the X-axis value of the acceleration data is the same when the player rotates the controller 7 about (90-a) ° around the Z-axis and (90 + a) ° with respect to the state A. Therefore, the rotation angle around the Z-axis of the controller 7 that can be detected by referring only to the magnitude of the X-axis value of the acceleration data is limited to a range of −90 ° to 90 °.

  Here, the method of detecting the tilt around the Z axis of the controller 7 has been described, but the tilt around the X axis and the tilt around the Y axis of the controller 7 can be similarly detected. For example, the inclination of the controller 7 around the X axis can be detected with reference to the Y axis value and the Z axis value (or one of the Y axis value and the Z axis value) of the acceleration data. Thus, by detecting the inclination of the controller 7 around at least two axes, the three-dimensional inclination of the controller 7 can be detected.

  Hereinafter, various games realized by the game system 1 will be described.

Example 1
FIG. 11 shows an example of a game screen during playing a game that guides a bar-like object to a goal without hitting a wall or an obstacle in the virtual game space, and an example of operation of the controller 7 by the player.

  The object Ob1 is displayed at the indicated position (Pa, Pb, Pc) on the screen by the controller 7. The designated position on the screen by the controller 7 is determined based on the position of the imaging target (markers 8 a and 8 b) in the captured image calculated by the imaging information calculation unit 35 provided in the controller 7.

  Further, the inclination of the object Ob1 (the rotation angles θ1, θ2, θ3 from the reference posture) is the same as the inclination around the Z axis of the controller 7 (the rotation angle from the reference posture). The inclination of the controller 7 around the Z axis is determined based on the X axis output value and the Y axis output value of the acceleration sensor 37 provided in the controller 7.

  In this way, the player can simultaneously control both the position and the posture of the object Ob1 simply by moving (moving or tilting) the controller 7.

  Hereinafter, with reference to the flowchart of FIG. 11, the flow of processing of the CPU 10 of the game apparatus 3 based on the game program in the present embodiment will be described.

  First, in step S10, the CPU 10 acquires operation data. This operation data includes at least the position of the imaging target (markers 8a and 8b) in the captured image and the X-axis output value and Y-axis output value of the acceleration sensor 37.

  In step S12, the designated position (the position on the screen designated by the player) is calculated based on the position of the imaging target (markers 8a and 8b) in the captured image. The method for calculating the indicated position is as described above (FIG. 9).

  In step S14, the position of the object in the virtual game space is determined based on the indicated position calculated in step S12. At this time, it is preferable to determine the position of the object so that the display position of the object on the screen matches the position on the screen instructed by the player.

  In step S <b> 16, the attitude (tilt) of the controller 7 is calculated based on the X-axis output value and the Y-axis output value of the acceleration sensor 37. The calculation method of the inclination of the controller 7 is as described above (FIG. 10).

  In step S18, the posture of the object in the virtual game space is determined based on the posture of the controller 7 calculated in step S16. At this time, it is preferable to determine the posture of the object so that the rotation angle from the reference position of the controller 7 matches the rotation angle from the reference position of the object. In another embodiment, the rotation angle from the reference position of the controller 7 is not calculated, and the vector defined by the X-axis output value and the Y-axis output value of the acceleration sensor 37 is treated as the attitude of the controller 7. A direction indicating the posture of the object may be determined by performing predetermined conversion processing directly on the vector direction.

  In step S20, a game image including an object is generated based on the position determined in step S14 and the attitude determined in step S18, and is output to the monitor 2.

  In step S22, it is determined whether or not the game is finished. If the game is continuing, the process returns to step S10, and the processes in steps S10 to S20 are repeated until the game is finished. When the game ends, the CPU 30 ends the game process.

(Example 2)
FIG. 13 shows an example of a game screen while playing a game of maneuvering an airplane object and shooting down an enemy airplane in the virtual game space, and an example of operation of the controller 7 by the player.

  As in the first embodiment, the object Ob2 is displayed at the designated position on the screen by the controller 7, and the designated position is the imaging target in the captured image calculated by the imaging information calculation unit 35 provided in the controller 7. It is determined based on the positions of (markers 8a and 8b).

  Further, the inclination of the object Ob2 (inclination around the central axis of the airframe) is the same as the inclination around the Z axis of the controller 7 (rotation angle from the reference posture). Similar to the first embodiment, the inclination of the controller 7 around the Z axis is determined based on the X axis output value and the Y axis output value of the acceleration sensor 37 provided in the controller 7.

  In the present embodiment, as shown in FIG. 14, the inclination of the object Ob2 changes in the direction in which the nose moves up and down in accordance with the inclination of the controller 7 around the X axis. The inclination of the controller 7 around the X axis (the rotation angle from the reference posture) is determined based on the Y axis output value and the Z axis output value of the acceleration sensor 37 provided in the controller 7.

  Furthermore, in this embodiment, as shown in FIG. 15, the player can change the position of the object Ob2 in the depth direction of the screen in the virtual game space by moving the controller 7 closer to or away from the screen. The change in the distance between the controller 7 and the screen can be detected from the change in the distance between the two imaging targets (markers 8a and 8b) in the captured image, as shown in FIG.

  As described above, in the game of the present embodiment, the player can freely change the position of the object Ob2 in the virtual game space by moving the controller 7, and at the same time, the posture of the object Ob2 is 3 It can be changed freely dimensionally. Therefore, for example, it is easy to control movements that are very complex, such as shooting missiles from enemies that are in front of you and moving them forward in the right direction of the screen while simultaneously shooting enemies that are in front of you. It becomes possible.

(Example 3)
FIG. 16 shows an example of a game screen while playing a game in which shooting is performed from the first person viewpoint in the virtual game space, and an example of operation of the controller 7 by the player.

  In this embodiment, as shown in FIG. 16, the orientation of the virtual camera VC installed in the virtual game space changes according to the inclination of the controller 7 around the X axis. The inclination of the controller 7 around the X axis (the rotation angle from the reference posture) is determined based on the Y axis output value and the Z axis output value of the acceleration sensor 37 provided in the controller 7 as in the second embodiment. .

  In the present embodiment, the aiming mark AC is arranged at the designated position in the virtual game space by the controller 7. The “designated position in the virtual game space” is a position in the virtual game space corresponding to the “designated position on the screen”. Specifically, it is the surface position of the object (tree or balloon) in the virtual game space displayed in the “designated position on the screen”. Therefore, even if the “designated position on the screen” is the same, if the orientation of the virtual camera VC changes, the “designated position in the virtual game space” changes accordingly.

  The player can move the controller 7 to aim an aiming mark at a desired object in the virtual game space, and press an operation button provided on the controller 7 to fire a gun toward the object.

  FIG. 17A is an example of a game screen when the player is placing the aim mark AC on a tree object, and FIG. 17B is an example of a game screen when the player is placing the aim mark AC on a balloon object. Note that the size of the aiming mark AC is different because the distance from the virtual camera VC to the aiming mark AC in the virtual game space is changed.

  Hereinafter, with reference to the flowchart of FIG. 18, the flow of processing of the CPU 10 of the game apparatus 3 based on the game program in the present embodiment will be described. In the flowchart of FIG. 18, the gun firing process based on the instruction from the player is omitted.

  First, in step S30, the CPU 10 acquires operation data. This operation data includes at least the position of the imaging target (markers 8a and 8b) in the captured image, the Y-axis output value of the acceleration sensor 37, and the Z-axis output value.

  In step S32, the attitude (tilt) of the controller 7 is calculated based on the Y-axis output value and the Z-axis output value of the acceleration sensor 37. The calculation method of the inclination of the controller 7 is as described above.

  In step S34, the attitude of the virtual camera VC in the virtual game space is determined based on the attitude of the controller 7 calculated in step S32.

  In step S36, based on the position of the imaging target (markers 8a and 8b) in the captured image and the attitude of the virtual camera VC determined in step S34, the designated position (the screen designated by the controller 7) in the virtual game space. The position in the virtual game space corresponding to the upper position) is calculated. The method for calculating the designated position in the virtual game space is as described above (FIG. 16).

  In step S38, the position of the aim mark AC in the virtual game space is determined based on the indicated position in the virtual game space calculated in step S36.

  In step S40, a game image including the aiming mark AC is generated based on the attitude of the virtual camera VC determined in step S34 and the position of the aiming mark AC determined in step S38, and is output to the monitor 2.

  In step S42, it is determined whether or not the game has ended. If the game has continued, the process returns to step S30, and the processes in steps S30 to S40 are repeated until the game ends. When the game ends, the CPU 30 ends the game process.

  As described above, according to the present embodiment, the player can move the controller 7 so that the aim mark is set on an arbitrary object in the virtual game space displayed on the screen, and the orientation of the virtual turtle VC Since an object that was not initially displayed on the screen (for example, the balloon in FIG. 16) is displayed on the screen, the aiming mark can be aligned with the object. Therefore, the desired position can be instructed by the controller 7 from a wide range in the virtual game space, not limited to the range displayed on the screen.

  As in the second embodiment, the position and angle of view (zoom magnification) of the virtual camera VC may be changed according to the change in the distance between the controller 7 and the screen.

Example 4
19A and 19B show a game screen example of a game in which a player turns a desired door knob among two door knobs installed in the virtual game space, and an operation example of the controller 7 by the player. Yes.

  In the above-described first to third embodiments, the position of the object and the position of the aiming mark in the virtual game space are changed by changing the indicated position of the controller 7. On the other hand, in the fourth embodiment, the controller 7 instructs which of the two objects Ob3 and Ob4 is to be operated.

  FIG. 19A shows a game screen in a state where the player has not instructed any door knob yet (that is, a state in which the indicated position of the controller 7 does not coincide with the display position of any door knob). In this state, even if the player rotates the controller 7 around the Z axis, none of the door knobs rotate and, of course, the door does not open.

  FIG. 19B shows a game screen when the player rotates the controller 7 around the Z axis while pointing the right door knob (that is, matching the indication position of the controller 7 to the display position of the right door knob). Yes. In this case, as the controller 7 rotates around the Z axis, the right door knob rotates and the right door opens.

  As described above, according to this embodiment, the player moves the controller 7 to select a desired object as an operation target object from among a plurality of objects in the virtual game space, and the operation target object. Can be easily controlled.

1 is an external view of a game system including a game device according to an embodiment of the present invention. Functional block diagram of game device 3 The perspective view seen from the upper rear of controller 7 The perspective view which looked at the controller 7 from the lower front Diagram showing the internal structure of the controller 7 Diagram showing the internal structure of the controller 7 Block diagram showing the configuration of the controller 7 The figure which shows an example of the captured image containing a target image Illustrated diagram outlining the state when performing game operations using the controller 7 The figure which shows the change of the captured image when the position and / or direction of the controller 7 are changed. The figure which shows the change of the X-axis value of the acceleration data when changing the inclination around the Z-axis of the controller 7, and a Y-axis value The figure which shows the correspondence of operation of the player in Example 1, and the position and attitude | position of an object. The flowchart which shows the flow of the game processing in Example 1. The figure which shows the correspondence of player's operation and the position and attitude | position of an object in Example 2. FIG. The figure which shows the correspondence of the player's operation in Example 2 and the attitude | position of an object. The figure which shows the correspondence of the player's operation in Example 2 and the position of an object. The figure which shows the correspondence of the player's operation in Example 3 and the direction of a virtual camera. Example game images in Example 3 Other game image examples in the third embodiment The flowchart which shows the flow of the game processing in Example 3. Example of game image when no operation target object is selected in the fourth embodiment Example of a game image in a state where an operation target object is selected in the fourth embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Game system 2 Monitor 3 Game device 4 Optical disk 5 External memory card 6 Communication unit 7 Controller 8a, 8b Marker 35 Imaging information calculating part 35a Light incident surface 37 Acceleration sensor 38 Infrared filter 39 Lens 40 Imaging element 41 Image processing circuit

Claims (11)

A game program that is executed by a computer of a game device that performs game processing in accordance with the movement of an input device that includes an acceleration sensor capable of detecting acceleration related to at least one axis and an imaging device for imaging a predetermined imaging target. There,
A data acquisition step of acquiring or calculating the position of the imaging target in the captured image of the imaging device and the acceleration detected by the acceleration sensor;
An instruction position calculating step of calculating an instruction position that changes with the movement of the input device from the position of the imaging target in the captured image;
An inclination calculating step for calculating an inclination of the input device from an acceleration detected by the acceleration sensor;
A game that causes the computer to execute a game processing step of performing a predetermined game process based on the indicated position and the inclination of the input device, and a display control step of displaying a game space reflecting the result of the game process on a display device program.   The game processing step includes an object processing step of determining an operation target object in the game space from the indicated position or determining a position of the operation target object, and determining an attitude of the operation target object from an inclination of the input device. The game program according to claim 1. The acceleration sensor can detect at least acceleration related to two axes perpendicular to the imaging direction of the imaging device;
The inclination calculating step calculates an inclination of the input device with respect to an imaging direction of the imaging device from an acceleration about two axes perpendicular to the imaging direction of the imaging device detected by the acceleration sensor. Including the step of calculating the tilt around
The game processing step determines an operation target object in the game space from the indicated position or determines a position of the operation target object, and determines the operation target object from an inclination of the input device with an imaging direction of the imaging device as an axis. The game program according to claim 1, comprising an object processing step for determining a posture.   The game processing step determines the orientation of the virtual camera in the game space from the tilt of the input device, and determines the position of the designated position in the game space according to the determined orientation of the virtual camera. The game program according to claim 1, comprising steps. The imaging object is a pair of imaging objects arranged apart from each other,
The game program causes the computer to further execute a distance calculation step of calculating a distance between the input device and the pair of imaging targets from a distance between the pair of imaging targets in the captured image.
2. The game process according to claim 1, wherein the game process step further performs the game process based on a distance between the input device and the pair of imaging targets in addition to the designated position and the tilt of the input device. Game program. An acceleration sensor capable of detecting acceleration about at least one axis;
An imaging device for imaging a predetermined imaging target;
An instruction position calculating means for calculating an instruction position that changes with a movement of the imaging device from a position of the imaging target in a captured image of the imaging device;
Inclination calculating means for calculating the inclination of the acceleration sensor from the acceleration detected by the acceleration sensor;
Game processing means for performing predetermined game processing based on the indicated position and the inclination of the acceleration sensor;
A game device comprising: display control means for causing a display device to display a game space reflecting the result of the game process.   The game processing means includes object processing means for determining an operation target object in the game space from the indicated position or determining a position of the operation target object, and determining a posture of the operation target object from an inclination of the acceleration sensor. The game device according to claim 6. The acceleration sensor can detect at least acceleration related to two axes perpendicular to the imaging direction of the imaging device;
The inclination calculating means calculates an inclination of the acceleration sensor about the imaging direction of the imaging device from an acceleration about two axes perpendicular to the imaging direction of the imaging device detected by the acceleration sensor. Including a surrounding inclination calculating means,
The game processing means determines an operation target object in the game space from the indicated position or determines a position of the operation target object, and determines the operation target object from an inclination of the acceleration sensor with an imaging direction of the imaging device as an axis. The game device according to claim 6, further comprising object processing means for determining a posture.   The game processing means determines the orientation of the virtual camera in the game space from the inclination of the acceleration sensor, and determines the position of the indicated position in the game space according to the determined orientation of the virtual camera. The game device according to claim 6, comprising means. The acceleration sensor is a three-axis acceleration sensor capable of detecting an acceleration related to three axes,
The game apparatus according to claim 6, wherein the inclination calculation unit calculates an inclination in three dimensions. The imaging object is a pair of imaging objects arranged apart from each other,
The game apparatus further includes distance calculation means for calculating a distance between the imaging device and the pair of imaging targets from a distance between the pair of imaging targets in the captured image,
The game processing means performs the game processing based on a distance between the imaging device and the pair of imaging targets, in addition to the indicated position and the inclination of the acceleration sensor. Game device.

Images