JP2012164235A - Program, information storage medium, reader, and server - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program, an information storage medium, a reader and a server for properly reading an object whose forgery can be prevented.SOLUTION: An object (for instance, a card) includes a symbol in which components of light received by an imaging section vary according to the settings of a light source. The imaging section performs recognition processing on a first image of an object imaged at a first light source setting time and performs recognition processing on a second image of the object imaged at a second light source setting time.

Description

  The present invention relates to a program, an information storage medium, a reading device, and a server.

  Conventionally, there is a code reader for reading a code (Patent Document 1). In the game field, there are game devices that read a code from a card on which the code is recorded and perform a game process using the read information.

  However, conventionally, this card may be counterfeited, and there has been a problem that a real card and a counterfeit card cannot be easily distinguished in a game device or the like.

JP-A-9-179926

  The present invention has been made in view of the problems as described above, and an object of the present invention is to provide a program, an information storage medium, a reading device, and a server for accurately reading an object that can be prevented from forgery. There is to do.

  (1) The present invention is a program for imaging an object irradiated with light and performing recognition processing of the captured image, and a light source setting unit that variably sets at least one light source for irradiating the object And an imaging unit that images the object, and a recognition processing unit that performs a recognition process of a captured image captured by the imaging unit, and the object captures the image according to the setting of the light source. The light source setting unit exclusively performs the first light source setting and the second light source setting with respect to at least one light source, and includes the recognition process. A recognition process of the first captured image obtained by imaging the object at the time of setting the first light source, and a recognition process of the second captured image obtained by imaging the object at the time of setting the second light source. It relates to the program that performs. The present invention also relates to an information storage medium storing the above program and a reading device configured as each of the above units.

  Here, the “light component” includes at least one of a light color component and a light luminance component. When the imaging unit images an object, a part of the object may be imaged, or the entire object may be imaged.

  According to the present invention, even when imaging an object including a symbol whose light component received by the imaging unit changes according to the setting of the light source, the symbol recorded on the object can be read accurately. Can do. In addition, the symbol of the object of the present invention can prevent forgery of the object because the light component received by the imaging unit changes according to the setting of the light source.

  (2) In the program, the information storage medium, and the reading device of the present invention, the light source setting unit may variably set the intensity of the light source.

  (3) In the program, the information storage medium, and the reading device of the present invention, the light source setting unit may variably set the lightness of the light source.

  (4) In the program, the information storage medium, and the reading device of the present invention, the light source setting unit may variably set the irradiation direction of the light source.

  (5) In the program, the information storage medium, and the reading device of the present invention, the light source setting unit may variably set the number of irradiations of the light source.

  (6) Further, the program, the information storage medium, and the reading device of the present invention further cause a computer to function as an authenticity determination unit that performs an authenticity determination process of the object, and the object corresponds to the first predetermined information. The authenticity determination unit recognizes the first predetermined information from one captured image of the first captured image and the second captured image, and recognizes the first predetermined information from the other captured image. When the predetermined information is not recognized, a process for determining that the object is true may be performed.

  Here, the “first predetermined information” may be the first symbol itself, or the specific data indicating the authenticity of the object included in the data indicated by the first symbol and the data indicated by the first symbol. The data may be first data recognized from the first symbol.

  According to the present invention, when the first predetermined information is recognized from one of the first captured image and the second captured image and the first predetermined information is not recognized from the other captured image, Since the process of determining that the object is a true object is performed, the authenticity determination can be performed easily and accurately.

  (7) Further, the program, the information storage medium, and the reading device of the present invention further cause a computer to function as an authenticity determination unit that performs an authenticity determination process of the object, and the object corresponds to the first predetermined information. A first symbol and a second symbol different from the first predetermined information, and the authenticity determination unit determines whether one of the first captured image and the second captured image is the first captured image. When the first predetermined information is recognized and the first predetermined information is not recognized from the other captured image, a process of determining the object as true may be performed.

  Here, the “second predetermined information” may be second data recognized from the first symbol. In addition, the “second predetermined information” may be the second symbol itself, data indicated by the second symbol, specific data indicating the authenticity of the object included in the data indicated by the second symbol, Data recognized from the second symbol may also be used.

  According to the present invention, when the first predetermined information is recognized from one of the first captured image and the second captured image and the first predetermined information is not recognized from the other captured image, Since the process of determining that the object is a true object is performed, the authenticity determination can be performed easily and accurately.

  (8) Further, the program, the information storage medium, and the reading device of the present invention further cause a computer to function as an authenticity determination unit that performs an authenticity determination process of the object, and the object corresponds to the first predetermined information. A first symbol and a second symbol corresponding to the second predetermined information, wherein the authenticity determination unit determines the first captured image from the first captured image and the second captured image. When the first predetermined information is recognized and the second predetermined information is recognized from the other captured image, a process of determining the object as true may be performed.

  According to the present invention, when the first predetermined information is recognized from one of the first captured image and the second captured image and the second predetermined information is recognized from the other captured image, it is true. Therefore, it is possible to easily and accurately determine the authenticity.

  (9) Further, the program, the information storage medium, and the reading device of the present invention use a computer as a commonality determination unit that determines whether or not the first captured image and the second captured image have commonality. And an identification mark that is visible from any direction is recorded on the object, and the commonality determination unit includes the identification mark in the first captured image and the second captured image. Whether the first captured image and the second captured image have a commonality or not, and the authenticity determination unit determines whether the first captured image and the second captured image are common. When there is no commonality with the image, a process for determining that the object is false may be performed. According to the present invention, the identity of a subject is required as a condition for authenticity determination, and illegal imaging can be prevented.

  (10) Further, the program, the information storage medium, and the reading device of the present invention are used in the game process based on the information recognized from the first captured image and the information recognized from the second captured image. You may make it function a computer as a determination part which determines game information.

  According to the present invention, the game information used in the game process is determined based on the information recognized from the first captured image and the information recognized from the second captured image. Can be used.

  (11) The present invention is a server that performs a recognition process of a captured image, and receives a captured image obtained by capturing an object irradiated with light from a given terminal via a network; A recognition processing unit that performs recognition processing of the captured image, and the object includes a symbol in which a component of light received by the imaging unit changes according to a variably set light source setting, and the communication 1st imaging which imaged the target object at the time of the 1st light source setting by which the control part performed the setting of the 1st light source exclusively, and the 2nd light source setting to at least one light source A process of receiving an image and a second captured image obtained by capturing the object at the time of setting the second light source, and the recognition processing unit includes a recognition process for the first captured image, and the second captured image. A server characterized by recognition processing of captured images. That. The present invention relates to a program that functions as each unit described above and an information storage medium that stores the program.

  Here, the captured image transmitted from the terminal is not limited to the captured image captured by the imaging unit included in the terminal, and may be a captured image captured by an imaging unit different from the terminal. When the imaging unit images an object, a part of the object may be imaged, or the entire object may be imaged.

  When the server of the present invention performs processing for receiving the first captured image and the second captured image from the terminal, the server performs recognition processing for the first and second captured images, so that the server records them. The first symbol to be read can be accurately read. In addition, the symbol of the object of the present invention can prevent forgery of the object because the light component received by the imaging unit changes according to the setting of the light source.

FIG. 1 is an example of a functional block diagram of a reading apparatus (terminal) according to the present embodiment. 2A and 2B are examples of the reading apparatus of the present embodiment. FIG. 3 is an example of a reading apparatus according to the present embodiment. 4A and 4B are explanatory diagrams of a true object. FIGS. 5A and 5B are explanatory diagrams of a captured image of a true object. 6A and 6B are explanatory diagrams of forgeries. 7A and 7B are explanatory diagrams of captured images of counterfeits. 8A to 8D are examples of objects. FIG. 9 is an explanatory diagram of a lenticular. FIG. 10 is an explanatory diagram of a polarizing ink and a polarizing sheet. 11A to 11C are examples of objects. FIG. 12 is an explanatory diagram of a shooting method of the imaging unit. 13A to 13C are explanatory diagrams of recognition processing. 14A to 14C are explanatory diagrams of recognition processing. FIG. 15 is an explanatory diagram for determining game information. FIG. 16 is an explanatory diagram for determining game information. FIG. 17 is a flowchart of processing according to the present embodiment. FIG. 18 is an explanatory diagram of a shooting technique of the imaging unit. FIG. 19 is an explanatory diagram regarding setting of the position of an object. FIG. 20 is a diagram for explaining blocking of natural light. FIGS. 21A and 21B are diagrams for explaining the relationship between the light source setting and the true object. 22A and 22B are diagrams for explaining the relationship between light source settings and counterfeits. 23A and 23B are explanatory diagrams of light source setting. 24A and 24B are explanatory diagrams of light source setting. 25A and 25B are explanatory diagrams of light source setting. 26A and 26B are explanatory diagrams of light source setting. FIG. 27 is a diagram showing a network system in which the terminal 10 and the server 20 are connected. FIGS. 28A and 28B are examples of a game device for business use.

  Hereinafter, this embodiment will be described. In addition, this embodiment demonstrated below does not unduly limit the content of this invention described in the claim. In addition, all the configurations described in the present embodiment are not necessarily essential configuration requirements of the present invention.

1. Configuration FIG. 1 shows functional blocks of a reading device 10 (computer, game device, portable game device, housing, terminal (terminal device), mobile phone, smartphone, portable terminal, tablet computer, image generation device) according to the present embodiment. An example of the figure is shown. Note that the reading apparatus 10 according to the present embodiment may have a configuration in which some of the components (each unit) in FIG. 1 are omitted.

  The imaging unit 30 forms an image of light emitted from an object on a light receiving plane of an imaging element by an optical system such as a lens, photoelectrically converts light and darkness of the image into an amount of electric charge, and sequentially reads out the electric signal as an electric signal. Convert. Then, the imaging unit 30 performs a process of outputting the captured image (input image) to the captured image storage unit 173. For example, the imaging unit 30 performs processing for outputting a color image defined in a color space (format) such as RGB, YUV, or HSV to the captured image storage unit 173. In addition, the imaging unit 30 of the present embodiment may include a first imaging unit 31 and a second imaging unit 32. In such a case, for example, the first captured image captured by the first imaging unit 31 and the second captured image captured by the second imaging unit 32 are stored in the captured image storage unit 173.

  The imaging unit 30 according to the present embodiment images an object including a symbol whose light component received by the imaging unit changes according to the imaging position. In other words, the imaging unit 30 captures an object including a symbol whose reflected light component changes according to the viewing angle. In other words, the imaging unit 30 captures an object including a symbol whose light component received by the imaging unit changes according to the setting of the light source. Note that the imaging unit 30 may image a part of the object. For example, you may image the area | region (predetermined area | region) where the symbol is recorded. In addition, the imaging unit 30 may capture an image so as to include an object.

  In addition, the light component received from the symbol of the target object (print medium, display medium, etc.) that is the subject changes from the first component to the second component according to the viewing angle. In addition, an identification mark that is visible from any direction is recorded on the target object. For example, each of a plurality of identification marks that can be viewed from any direction is recorded at each predetermined position on the object. Note that the component of light received from the symbol of the object of the present embodiment (the component of reflected light) may change from the first component to the second component depending on the viewing angle. For example, the component of the light received from the symbol of the object of the present embodiment (the component of the reflected light) is the second component of the reflected light from the first symbol to the second component of the reflected light from the first symbol. It may change to a component.

  In addition, the imaging unit 30 captures the object from the first imaging position that receives at least the first component from the symbol of the object, and receives the second component from the symbol of the object. You may image a target object from an imaging position. For example, the first component is a light component from a symbol (for example, a code) recorded on the object, and the second component is a light component that is not the symbol recorded on the object. Can do.

  Further, the imaging unit 30 may image the object from the first and second imaging positions at the same timing, or may image the object from the first and second imaging positions at different timings.

  In addition, when the first imaging unit 31 images the object from the first imaging position and the second imaging unit 32 images the object from the first imaging position, the first imaging unit 31. And the second imaging unit 32 may have a predetermined imaging position relationship and a predetermined imaging direction relationship.

  In addition, the imaging unit 30 may capture an object when the first light source is set and may capture the object when the second light source is set. For example, the imaging unit 30 is a position that receives at least the first component of the reflected light of the object when irradiated with a first light source (visible light source), and is a second light source (visible light source). You may arrange | position the position which receives at least the 2nd component of the reflected light of a target object at the time of irradiation as an imaging position.

  The input unit 160 is an input device (controller) for inputting input information from the player (operator), and outputs the input information of the player to the processing unit. The input unit 160 of this embodiment includes a detection unit 162 that detects input information (input signal) of the player. The input unit 160 includes, for example, a lever, a button, a steering, a microphone, a touch panel display, and the like. The input unit 160 may include a vibration unit that performs a process of vibrating based on the vibration signal.

  The input unit 160 may be an input device including an acceleration sensor that detects triaxial acceleration, a gyro sensor that detects angular velocity, and the imaging unit 30. For example, the input unit 160 may be held and moved by the player, or may be worn by the player and moved. The input unit 160 may be an input device imitating an actual tool such as a sword-type controller or gun-type controller held by the player, or a glove-type controller worn by the player (attached to the hand of the player). Good. The input unit 160 may be a terminal (a mobile phone, a mobile terminal, a smartphone, a portable game device, a tablet computer) itself.

  The storage unit 170 serves as a work area for the processing unit 100, the communication unit 196, and the like, and its function can be realized by a RAM (VRAM) or the like.

  The information storage medium 180 (computer-readable medium) stores programs, data, and the like, and functions as an optical disk (CD, DVD), magneto-optical disk (MO), magnetic disk, hard disk, and magnetic tape. Alternatively, it can be realized by a memory (ROM). The processing unit 100 performs various processes of the present embodiment based on a program (data) stored in the information storage medium 180. The information storage medium 180 can store a program for causing a computer to function as each unit of the present embodiment (a program for causing a computer to execute processing of each unit).

  The display unit 190 outputs an image generated according to the present embodiment, and its function can be realized by a CRT, LCD, touch panel display, HMD (head mounted display), or the like.

  The sound output unit 192 outputs the sound generated by the present embodiment, and its function can be realized by a speaker, headphones, or the like.

  The communication unit 196 performs various controls for communicating with the outside (for example, other terminals and servers), and the functions are realized by hardware such as various processors or communication ASICs, programs, and the like. it can.

  In the present embodiment, a program or data for causing a computer to function as each unit of the present embodiment stored in the information storage medium or storage unit of the server 20 is received via a network, and the received program or data Data may be stored in the information storage medium 180 or the storage unit 170. The case where the terminal is functioned by receiving the program or data as described above is also included in the scope of the present invention.

  The processing unit 100 (processor) performs processing such as game processing, image generation processing, or sound generation processing based on input data from the input unit 160, a program, and the like.

  The processing unit 100 performs various processes using the main storage unit 171 in the storage unit 170 as a work area. The functions of the processing unit 100 can be realized by hardware such as various processors (CPU, DSP, etc.), ASIC (gate array, etc.), and programs.

  The processing unit 100 includes a commonality determination unit 110, a recognition processing unit 111, an authenticity determination unit 112, a game processing unit 113, a determination unit 114, a display control unit 115, a light source setting unit 116, an imaging unit setting unit 117, and an object setting unit. 118, a communication control unit 119, a drawing unit 120, and a sound processing unit 130. Note that some of these may be omitted.

  The commonality determination unit 110 determines whether there is commonality between the first captured image and the second captured image. For example, the commonality determination unit 110 determines that there is commonality between the first captured image and the second captured image when an identification mark is detected in the first captured image and the second captured image. . Further, the commonality determination unit 110 compares the positional relationship between the identification marks on the first captured image with the positional relationship between the identification marks on the second captured image, and the comparison result is a predetermined positional relationship condition. When satisfying, it may be determined that they have commonality.

  Further, the commonality determination unit 110 determines the orientation of the object with respect to the first imaging position based on the positional relationship between the identification marks on the first captured image and the positional relationship between the identification marks on the second captured image. The direction of the object with respect to the two imaging positions may be compared, and if the comparison result satisfies a predetermined orientation relationship condition, it may be determined that there is commonality.

  The recognition processing unit 111 performs recognition processing of the captured image captured by the imaging unit 30. For example, the recognition processing unit 111 performs recognition processing of a first captured image captured from the first imaging position, and performs recognition processing of a second captured image captured from the second imaging position.

  The recognition processing unit 111 performs recognition processing of a first captured image obtained by imaging the object at the time of setting the first light source and recognition processing of a second captured image obtained by imaging the object at the time of setting the second light source. It may be. In addition, for example, the recognition processing unit 111 performs recognition processing of the first captured image captured when the first light source is irradiated, and performs recognition processing of the second captured image captured when the second light source is irradiated. You may make it perform.

  The authenticity determination unit (authentication determination unit) 112 performs an authenticity determination process for the object. For example, when the authenticity determination unit 112 recognizes the first predetermined information from one of the first captured image and the second captured image and does not recognize the first predetermined information from the other captured image. Next, a process for determining a true object is performed.

  Further, when the authenticity determination unit 112 recognizes the first predetermined information from one of the first captured image and the second captured image and recognizes the second predetermined information from the other captured image. In addition, a process for determining true may be performed.

  Further, the authenticity determination unit 112 has a commonality between the first captured image and the second captured image, recognizes the first predetermined information from one captured image, and determines from the other captured image. When the first predetermined information is not recognized, a process for determining a true object may be performed. Further, the authenticity determination unit 112 has a commonality between the first captured image and the second captured image, recognizes the first predetermined information from one captured image, and determines from the other captured image. When recognizing the second predetermined information, a process of determining a true object may be performed. That is, the authenticity determination unit 112 may determine that the target object is false when there is no commonality between the first captured image and the second captured image.

  The game processing unit 113 performs various game calculation processes. For example, there are a process for starting a game when a game start condition is satisfied, a process for advancing the game, and a process for ending a game when a game end condition is satisfied.

  The game processing unit 113 includes various objects (polygons, free-form surfaces, subdivision surfaces, etc.) representing display objects such as player characters, buildings, stadiums, cars, trees, pillars, walls, and maps (terrain). The object may be placed and set in the object space.

  Here, the object space is a virtual space and includes both a two-dimensional space and a three-dimensional space. The two-dimensional space is a space in which an object is arranged at, for example, two-dimensional coordinates (X, Y), and the three-dimensional space is a space in which an object is arranged at, for example, three-dimensional coordinates (X, Y, Z). is there. For example, the object space setting unit 111 places an object in the world coordinate system when the object space is a three-dimensional space. In addition, for example, the position and rotation angle of the object in the world coordinate system (synonymous with the direction and direction, for example, when turning clockwise when viewed from the positive direction of the X, Y, and Z axes in the world coordinate system. Is determined, and an object is arranged at the position (X, Y, Z) at the rotation angle (rotation angle about the X, Y, Z axes).

  Further, the game processing unit 113 may perform processing for moving the player character in the object space. That is, based on input information input by the player through the input unit 160, a program (movement / motion algorithm), various data (motion data), and the like, the player character is moved in the object space, and the object is moved (motion, motion, etc.). Animation). More specifically, movement information (movement parameters such as position, rotation angle, speed, or acceleration) and action information (position or rotation angle of each part constituting the object) of the player character are stored in one frame (for example, 1 / 60 seconds) may be performed sequentially. The frame is a unit of time for performing the player character movement / motion process and the image generation process.

  The game processing unit 113 performs a game process based on the recognition process result. For example, when the first predetermined information and the second predetermined information are recognized, the game process is performed based on the first predetermined information and the second predetermined information.

  The determination unit 114 performs processing for determining game information used in the game processing based on the recognition processing result of the first captured image and the recognition processing result of the second captured image. For example, the determination unit 114 performs a process of determining game information used in the game process based on information recognized from the first captured image and information recognized from the second captured image. The determination unit 114 uses the game information used in the game process based on the information recognized from the first captured image and the information recognized from the second captured image when the object is determined to be true. It is also possible to perform a process for determining.

  Further, the display control unit 115 performs display control for displaying the contents of the game processing by the game processing unit 113 and display control for displaying the image generated in the drawing unit 120 on the display unit 190.

  Further, the display control unit 115 may display the recognition processing result received from the server 20, for example, information recognized from the captured image. Further, even if the server 20 performs processing for displaying a Web page (data described in a hypertext description language provided on the Internet. For example, HTML (Hyper Text Markup Language) data), a game result, or the like. Good.

  The light source setting unit 116 sets at least one light source for irradiating the object. For example, the light source setting unit 116 may set the light source variably or may be fixed. Further, the light source setting unit 116 may exclusively perform the first light source setting and the second light source setting for at least one light source.

  Specifically, the first light source setting may be a light source setting for the imaging unit 30 to receive the first component. Further, the second light source setting may be a light source setting for the imaging unit 30 to receive the second component. For example, the first light source setting may be a light source setting for the imaging unit 30 to receive a first component of light from a symbol (for example, a code) recorded on the object. Further, the second light source setting may be a light source setting for the imaging unit 30 to receive the second component from the symbol recorded on the object.

  The light source setting unit 116 may variably set the intensity of the light source. The light source setting unit 116 may variably set the brightness of the light source. The light source setting unit 116 may variably set the irradiation direction of the light source. The light source setting unit 116 may variably set the number of light source irradiations. Further, the light source setting unit 116 may variably set the light source position.

  The imaging unit setting unit (camera setting unit) 117 sets the position of the imaging unit 30 to be variable or fixed. For example, the imaging unit setting unit 117 may set the position of the imaging unit to be fixed (for example, during imaging). The imaging unit setting unit may set the positions of a plurality of imaging units. In addition, the imaging unit setting unit 117 may automatically control the subject of the imaging unit 30 so as to always be the target (the code recording surface of the target).

  The object setting unit 118 sets the position of an object such as a card to be variable or fixed. For example, the object setting unit 118 may set the position of the object to be fixed (for example, during imaging).

  The communication control unit 119 performs processing for transmitting / receiving data to / from another reading device (terminal) 10 or the server 20. For example, the communication control unit 119 performs processing for transmitting and receiving data by designating the IP address and port number of the server. Further, the communication control unit 119 performs processing for storing the data received from the server 20 in the storage unit 170, processing for analyzing the received data, control processing for other data transmission / reception, and the like. The communication control unit 119 may store the server destination information (IP address, port number) in the information storage medium 180 and perform a management process. The communication control unit 119 may perform communication with the server 20 when receiving input information for starting communication from the user.

  In particular, the communication control unit 119 performs processing for transmitting user identification information to the server 20 and receiving data related to the user information (game data or a user's Web page) from the server 20. For example, the communication control unit 119 may perform a process of receiving data from the server 20 including information on other users who have friendships with the user (such as other user names and other users' posted information). Good.

  Note that the communication control unit 119 may perform a process of generating a packet including data in accordance with a frame rate for drawing an image and transmitting the generated packet to the server 20. Specifically, for example, when the frame rate is 60 fps, a process of transmitting a packet to the server 20 may be performed every 1/60 seconds.

  Further, the communication control unit 119 may transmit the captured image captured by the imaging unit 30 to a server or another terminal via a network. Further, the communication control unit 119 may transmit input information, game information, game results, and the like to a server or other reading device (terminal) 10.

  The drawing unit 120 performs processing for arranging an object in an object space (virtual three-dimensional space). For example, the object placement unit performs processing for placing a display object such as a building, a stadium, a car, a tree, a pillar, a wall, and a map (terrain) in the object space. Here, the object space is a virtual game space, for example, a space in which objects are arranged in three-dimensional coordinates (X, Y, Z) such as a world coordinate system and a virtual camera coordinate system.

  For example, the object placement unit places an object (an object composed of a primitive such as a polygon, a free-form surface, or a subdivision surface) in the world coordinate system. Also, for example, the position and rotation angle (synonymous with direction and direction) of the object in the world coordinate system is determined, and the rotation angle (X, Y, Z axis rotation) is determined at that position (X, Y, Z). Position the object at (Angle).

  The drawing unit 120 performs drawing processing based on the results of various processes performed by the processing unit 100, thereby generating an image and outputting the image to the display unit 190. In other words, the drawing unit 120 generates an image that can be seen from the virtual camera in the object space.

  For example, the drawing unit 120 receives object data (model data) including vertex data (vertex position coordinates, texture coordinates, color data, normal vector, α value, etc.) of each vertex of the object (model). Based on the vertex data included in the object data, vertex processing (shading by a vertex shader) is performed. When performing the vertex processing, vertex generation processing (tessellation, curved surface division, polygon division) for re-dividing the polygon may be performed as necessary.

  In the vertex processing, according to the vertex processing program (vertex shader program, first shader program), vertex movement processing, coordinate transformation, for example, world coordinate transformation, visual field transformation (camera coordinate transformation), clipping processing, perspective transformation (projection transformation) ), Geometry processing such as viewport conversion is performed, and based on the processing result, the vertex data given to the vertex group constituting the object is changed (updated or adjusted).

  Then, rasterization (scan conversion) is performed based on the vertex data after the vertex processing, and the surface of the polygon (primitive) is associated with the pixel. Subsequent to rasterization, pixel processing (shading or fragment processing by a pixel shader) for drawing pixels (fragments forming a display screen) constituting an image is performed. In pixel processing, according to a pixel processing program (pixel shader program, second shader program), various processes such as texture reading (texture mapping), color data setting / change, translucent composition, anti-aliasing, etc. are performed, and an image is processed. The final drawing color of the constituent pixels is determined, and the drawing color of the perspective-transformed object is output (drawn) to the image buffer 172 (buffer that can store image information in units of pixels; VRAM, rendering target, frame buffer). . That is, in pixel processing, per-pixel processing for setting or changing image information (color, normal, luminance, α value, etc.) in units of pixels is performed. Thereby, an image that can be seen from the virtual camera (given viewpoint) in the object space is generated.

  Note that the vertex processing and pixel processing are realized by hardware that enables polygon (primitive) drawing processing to be programmed by a shader program written in a shading language, so-called programmable shaders (vertex shaders and pixel shaders). Programmable shaders can be programmed with vertex-level processing and pixel-level processing, so that the degree of freedom of drawing processing is high, and expressive power is greatly improved compared to conventional hardware-based fixed drawing processing. Can do.

  The drawing unit 120 performs geometry processing, texture mapping, hidden surface removal processing, α blending, and the like when drawing an object.

  In the geometry processing, processing such as coordinate conversion, clipping processing, perspective projection conversion, or light source calculation is performed on the object. Then, the object data (positional coordinates of object vertices, texture coordinates, color data (luminance data), normal vector, α value, etc.) after geometry processing (after perspective projection conversion) is stored in the storage unit 170. .

  Texture mapping is a process for mapping a texture (texel value) stored in the storage unit 170 to an object. Specifically, the texture (surface properties such as color (RGB) and α value) is read from the storage unit 170 using texture coordinates or the like set (given) to the vertex of the object. Then, a texture that is a two-dimensional image is mapped to an object. In this case, processing for associating pixels with texels, bilinear interpolation or the like is performed as texel interpolation.

  As the hidden surface removal processing, hidden surface removal processing can be performed by a Z buffer method (depth comparison method, Z test) using a Z buffer (depth buffer) in which Z values (depth information) of drawing pixels are stored. . That is, when drawing pixels corresponding to the primitive of the object are drawn, the Z value stored in the Z buffer is referred to. Then, the Z value of the referenced Z buffer is compared with the Z value at the drawing pixel of the primitive, and the Z value at the drawing pixel is a Z value (for example, a small Z value) on the near side when viewed from the virtual camera. In some cases, the drawing process of the drawing pixel is performed and the Z value of the Z buffer is updated to a new Z value.

  α blending (α synthesis) is a translucent synthesis process (usually α blending, addition α blending, subtraction α blending, or the like) based on an α value (A value).

  For example, in α blending, the drawing color (overwriting color) C1 to be drawn in the image buffer 172 and the drawing color (background color) C2 already drawn in the image buffer 172 (rendering target) are set to α values. Based on this, a linear synthesis process is performed. That is, if the final drawing color is C, it can be obtained by C = C1 * α + C2 * (1−α).

  The α value is information that can be stored in association with each pixel (texel, dot), for example, plus alpha information other than color information. The α value can be used as mask information, translucency (equivalent to transparency and opacity), bump information, and the like.

  The sound processing unit 130 performs sound processing based on the results of various processes performed by the processing unit 100, generates a game sound such as BGM, sound effect, or sound, and outputs the game sound to the sound output unit 192.

  Note that the reading device (terminal, game device) 10 of the present embodiment may be controlled so that the game can be played in a single player mode in which only one player can play or in a multiplayer mode in which a plurality of players can play. Good. For example, in the case of controlling in the multiplayer mode, game processing may be performed by transmitting / receiving data to / from another reading device 10 via a network, or one reading device 10 may be connected from a plurality of input units. Processing may be performed based on the input information. Further, the reading device 10 may perform a game process based on a game program received from the server 20.

2. Description of Reading Device FIGS. 2A and 2B show an example of the reading device 10 of the present embodiment. The reading device 10 of the present embodiment is a portable game device, for example. In the reading device 10, the main body upper portion 2 and the main body lower portion 4 are joined by a hinge portion 6, and the main body upper portion 2 and the main body lower portion 4 are formed to be rotatable around a hinge axis. The upper part 2 of the main body is provided with a first display 11 and a slide-type 3D volume (a function of adjusting the depth of stereoscopic vision) for adjusting the stereoscopic degree when displaying a stereoscopic image on the first display 11. It has been.

  An imaging unit (camera) 30 (31, 32, 33) is provided on the main body upper portion 2 of the reading apparatus 10 of the present embodiment. That is, as shown in FIG. 2 (B), two image pickup units 31 and 32 are provided outside the main body upper portion 2 and one image pickup portion 33 is provided inside the main body upper portion 2 as shown in FIG. 2 (A). It has been.

  As illustrated in FIG. 3, the reading apparatus 10 according to the present embodiment can generate a stereoscopic image by combining the captured images captured by the two imaging units 31 and 32. Therefore, the two imaging units 31 and 32 are arranged and set in the main body upper part 2 so as to face a predetermined position and a predetermined direction. For example, the imaging units 31 and 32 are arranged at positions CP1 and CP2 that are separated from the representative position P of the main body upper portion 2 by a predetermined distance L, and are arranged so that the Y axis and the Z axis in the upper portion of the main body are aligned. The imaging units 31 and 32 are arranged to face the same direction V. Then, the imaging units 31 and 32 capture an image of an object that is the same subject at a timing when input information from the input unit 160 is received (a timing when an input signal is detected). Each captured image captured by the imaging units 31 and 32 is stored in the captured image storage unit 173. Then, the reading device 10 according to the present embodiment performs processing for recognizing each captured image stored in the captured image storage unit 173.

  Further, as shown in FIG. 2A, a second display 12 is provided in the main body lower portion 4. Also, the lower part 4 of the main body is provided with input units (operation units) 160 such as a slide pad 13, a cross key 14, a power button 15, a button 16, a select button 17, a home button 18, and a start button 19. Note that the reading device 10 may be provided with a sound input device (microphone) for an operator to input sound (voice input).

  In addition, the second display 12 of the present embodiment is configured by laminating a liquid crystal display and a touch panel, and can detect a contact operation position with respect to a display area of the second display 12. In this embodiment, the operator is caused to perform a contact operation on the second display 12 with the touch pen 17 or a finger, and the contact operation position is detected.

3. 3. Method according to the present embodiment 3.1 Overview In the present embodiment, the imaging unit 30 (for example, the imaging units 31 and 32) of the reading device 10 captures an image of an object (for example, a card), and two captured images are captured. It is determined whether or not predetermined information indicating the authenticity of the object can be recognized from each. Then, when the predetermined information can be recognized in one of the two picked-up images picked up by the image pickup unit 30 and the predetermined information cannot be recognized in the other picked-up image, a process of determining that the object is a true object is performed. Do.

  More specifically, in the present embodiment, a rectangular card (print medium) having a predetermined size is used as an example of the object 40. This card 40 is subjected to special processing such as special ink such as polarized ink whose color changes depending on the direction seen in a predetermined region (symbol recording region, code recording surface) on the printing surface, lenticular, embossing and the like. And in this embodiment, the card | curd in which the special process was given to the printing surface of the card | curd 40 is handled as a true card | curd (regular card | curd). For example, as shown in FIG. 4A, a card 40 on which a code with special ink is recorded can see the code when viewed from the position P0 in the card direction R1. On the other hand, as shown in FIG. 4B, the code cannot be viewed when viewed from the position P1 in the card direction R2.

  In the present embodiment, authentication processing (authentication determination) is performed by performing recognition processing of two captured images obtained by imaging at different positions by the imaging unit 30. That is, as illustrated in FIG. 5, the reading apparatus 10 according to the present embodiment recognizes the code from the captured image 61 captured by the imaging unit 31 and does not recognize the code from the captured image 62 captured by the imaging unit 32. It is determined that it is a true card.

  On the other hand, there is a fake card 50 with normal ink that is visible from any direction in a predetermined area. For example, as shown in FIG. 6A, a card 50 on which a code with normal ink is recorded can see the code when viewed from the position P0 in the direction R1 of the card 50, and FIG. As shown in (B), the code can also be seen when viewed from the direction P2 of the card 50 from the position P1. The reading apparatus 10 according to the present embodiment determines that a card in which normal ink is applied to the code portion is a fake card.

  That is, as illustrated in FIG. 7, the reading apparatus 10 according to the present embodiment can recognize the code because the code is captured in the captured image 71 captured from the imaging unit 31. In addition, the reading device 10 can recognize the code by imaging the code in the captured image 72 captured from the imaging unit 32. Thus, when the code can be recognized in both the captured images 71 and 72, it is determined that the card is a fake card.

  As described above, in this embodiment, a card on which polarized ink or the like has been applied is handled as a regular card, so that forgery by a copying machine or the like is difficult. That is, according to this embodiment, a card capable of preventing forgery can be provided. Further, according to the reading apparatus of the present embodiment, it is possible to easily determine the authenticity. Details will be described below.

3.2 Description of Object First, an object on which information recognized by the reading device 10 is recorded will be described. The target object of the present embodiment is a target object that is a subject of the imaging unit 30, and can be, for example, a printed matter (print medium) such as a card or an object (medium) such as a screen (display screen or display medium). . In this embodiment, a printed matter is mainly described as an example of the object. When the object is a self-luminous screen or the like, illumination such as light irradiation is not necessary, and direct light is imaged or observed instead of reflected light.

  In addition, the symbol (for example, code) recorded on the object of the present embodiment changes the light component received from the symbol according to the viewing angle when light (visible light) is irradiated (separately). In other words, the reflected light component from the symbol changes according to the viewing angle). The light component is at least one of a light color component and a luminance component. That is, when the observer tilts the object, the code appears to be visible or invisible depending on the tilt angle. An example of the object of the present embodiment will be described more specifically.

3.2.1 Explanation of Symbols First, symbols according to the present embodiment will be described. The symbol of this embodiment can be a code, a pattern, a character, a pictogram, a numerical value, a color, a pattern, a color-coded pattern, a non-pattern, a plain color, a belt-like gradation, or the like. For example, the code is not only a one-dimensional code indicating information by the thickness of a striped line in the horizontal direction, but also a two-dimensional code (for example, a QR code (registered trademark), a mesh pattern code indicating information vertically and horizontally) ). The code may be a code indicated by white or black, or may be a code by color.

  And a symbol is recorded on the object of this embodiment. Here, the symbol is “recorded” on the object means that the symbol is “printed” on the object, the symbol is “embossed (unevened)” on the object, and the symbol is displayed on the object. This means that the symbol may be recorded on the object in another manner.

  Further, the symbols recorded on the object of the present embodiment are recorded such that the light component received by the observer changes. That is, the symbol recorded on the object appears to change the light component according to the viewing angle of the observer.

  Therefore, the component of the light received by the imaging unit 30 is changed according to the imaging position of the imaging unit 30 included in the reading device 10 of the present embodiment.

  Moreover, the symbol recorded on the target object of the present embodiment may be recorded such that the component of the reflected light changes according to the setting of the light source. That is, the symbol may be recorded so that the light component received by the imaging unit 30 changes according to the setting of the light source intensity or the like.

  The symbol may be a symbol corresponding to predetermined information indicating the authenticity of the object. Here, the predetermined information is information indicating the authenticity of the object, and may be, for example, the symbol itself, or data indicated by the symbol, or specific data indicating the authenticity of the object included in the data indicated by the symbol. , Data recognized from symbols, and the like.

  More specifically, for example, when the symbol is a code (one-dimensional code, two-dimensional code), the code corresponding to the predetermined information is, for example, a numerical value (character string) indicating the authenticity of a predetermined object. ) Including encoded data.

  For example, when the symbol is a color, the color corresponding to the predetermined information is a color indicating the authenticity of a predetermined object. For example, when the true color is defined as red, red is recorded as a symbol on the object.

  For example, when the symbol is a mark, the mark corresponding to the predetermined information is a mark indicating the authenticity of a predetermined object. For example, when a mark indicating authenticity is defined as a circular mark, the circular mark is recorded as a symbol on the object.

  Further, the second symbol may be recorded on the object of the present embodiment. For example, when the object is irradiated with light (for example, visible light), the light component received from the second symbol (the component included in the reflected light) changes according to the viewing angle. The second symbol may be recorded. Further, the second symbol may be a symbol different from (unrelated to) the predetermined information indicating the authenticity of the target object, or the second symbol may be in accordance with the second predetermined information indicating the authenticity of the target object. It may be a symbol. Further, the object includes a second component of light received from the second symbol from a first component of light received from the first symbol (first component of reflected light) according to a viewing angle. The first symbol and the second symbol may be recorded so as to change to (second component of reflected light).

  In the present embodiment, the first symbol may be a symbol corresponding to information for determining game information. For example, the first symbol of the present embodiment includes game information such as information used to determine a character in the game, strength parameter, physical fitness parameter, item, movie, character, event program name to be executed, and voice. The symbol may be recognizable by the reader 10. Then, the reader 10 may recognize the symbol and use the game information recognized by the symbol in the game process. In addition, when recording a 2nd symbol on a target object, it is good also considering the said 2nd symbol as a symbol according to the information for determining game information.

  For example, in this embodiment, data including information (numerical values or character strings) for determining game information may be encoded, and the encoded code may be recorded on the object as the first symbol. In the present embodiment, the color for determining the game information may be recorded on the object as the first symbol, or the mark for determining the game information is recorded on the object as the first symbol. May be.

3.2.2 Specific Example of Symbol Recording In the object 40 of the present embodiment, symbols are recorded on a part or all of the object 40. If the object 40 is a card, a symbol is recorded on at least one of the front surface and the back surface. Further, the symbol may be recorded in a predetermined area (symbol recording area) of the object 40.

  For example, as shown in FIGS. 8A to 8D, the target object 40 is set with predetermined areas (symbol recording areas) A1 to A3, and lenticular, color shifting, embossing, etc. are performed on the predetermined areas. By applying, the color changes depending on the viewing direction.

  Specifically, as shown in FIG. 8A, when a predetermined region A1 of the object 40 is irradiated with visible light, the component of light received from the code (reflected light) according to the viewing angle. The code is recorded so that the component of In other words, the predetermined area A1 is provided with a changing portion in which at least one of color and luminance changes according to a change in the viewing angle θ with respect to the code recording surface.

  For example, when viewed from the first direction R1 in which the viewing angle with respect to the code recording surface is the first angle θ1, the code can be seen in the predetermined area A1, and the viewing angle with respect to the code recording surface is the second angle θ2. The code is recorded so that the code cannot be seen in the predetermined area A1 when viewed from the direction R2. Recording methods include lenticular, polarizing ink and polarizing sheet, printing techniques such as embossing, and image drawing for displaying on a stereoscopic video display screen.

  Further, as shown in FIG. 8B, the object 40 has a color or luminance that changes depending on the viewing direction of the region A2 that is the entire object 40 (at least one of the entire front surface and the entire back surface). Special printing and special images that can be seen may be applied. In such a case, as shown in FIG. 8B, a symbol (code) may be recorded in a part of the area A2, or a symbol may be recorded in the entire area A2. Further, as shown in FIG. 8B, in the first and second directions R1 and R2, the design or the like may be changed according to the direction of viewing in the area other than the symbol (code) recording area. .

3.2.3 Recording of identification marks In this embodiment, a plurality of identification marks that are visible from any direction other than the predetermined area where the first symbol is recorded may be recorded on the object. Good. For example, each identification mark and the first symbol are recorded on the object such that a plurality of identification marks and a predetermined area are arranged in a predetermined arrangement relationship. In this way, by recognizing the marks M1 to M3 in the reading device 10, it is easy to determine in which part the first symbol (code) to be read is described from the positional relationship of the marks M1 to M3. it can. The marks M1 to M3 are formed so as to be visible from any direction. This is because the marks M1 to M3 need to be formed so as to be visible from any direction in order to extract a predetermined region.

  For example, as shown in FIG. 8C, when viewed from the first direction R1, the code can be seen in the predetermined area A3, and when viewed from the second direction R2, the code can be seen in the predetermined area A3. The plurality of identification marks M1 to M3 are recorded so as to be visible from any direction.

  As shown in FIG. 8C, in the present embodiment, the plurality of identification marks M1 to M3 are arranged at predetermined intervals on the target object. That is, among the four corners of the object 40, three identification marks M1 to M3 are arranged at the three corners, and a predetermined area A3 for recording a symbol is set at the remaining one corner. The identification marks M1 to M3 of the present embodiment are composed of two squares having the same center point and different sizes, and the inner squares are shown in black. However, the identification marks can be identified. That's fine.

  In addition, as shown in FIG. 8D, the object 40 of the present embodiment is provided with a plurality of marks M1 to M3 on the object 40, and the first symbol is recorded based on the positional relationship between the marks M1 to M3. In addition to the predetermined area A3, an information recording area (information recording range) B may be provided.

  For example, if the marks M1 to M3, the predetermined area A3, and the information recording area B are determined in advance so as to have a predetermined positional relationship, information for determining card forgery is recorded in the predetermined area A3. Since the third symbol corresponding to other information (given information) can be recorded in the area B, the processing of the reading device 10 can be simplified.

  That is, as shown in FIG. 8D, in the predetermined area A3 of the object, the code is visible when viewed from the first direction R1, and the code is not visible when viewed from the second direction R2. A code is recorded, and a third symbol (for example, a third code) corresponding to another information (third information) recorded in the plurality of identification marks M1 to M3 and the information recording area B is It is recorded so that it can also be visually recognized from the direction. In the information storage area B, the third symbol is recorded so that the third symbol can be seen when viewed from the first direction R1 and the third symbol cannot be seen when viewed from the second direction R2. You may make it do.

3.2.4 Method of recording symbols Next, a recording method in which the component of light received (reflected light) changes according to the viewing angle will be briefly described.

(1) Lenticular In this embodiment, when visible light is irradiated using a lenticular, the component of light received from the symbol (component included in the reflected light from the symbol) changes according to the viewing angle. Thus, the symbol is recorded on the object. That is, the object 40 of the present embodiment may be formed so that the color changes according to the viewing direction by applying lenticular to a predetermined region. In particular, the target object 40 of the present embodiment records the first symbol so that when the target object 40 is viewed from a specific direction, the first component is included in the received light component.

  The lenticular is an object (printed material, autostereoscopic display) that uses a sheet-like lenticular lens to change the picture depending on the viewing angle or to obtain a stereoscopic effect.

  For example, as shown in FIG. 9, a lenticular sheet (lenticular lens) is a sheet in which countless convex lenses on the surface are arranged on a surface, and this sheet is made of transparent plastic. Then, a lenticular sheet is generated by sticking a printed material on which a symbol is printed on the lenticular sheet, or by printing the symbol directly on the back surface of the lenticular sheet.

  When pasting the printed materials, cut the two symbols into strips and paste them so that the strips of each symbol are interlaced alternately so that the combination of the strips of two symbols is placed on one convex lens. Combine (print). In the three-dimensional display, the pixel rows and the lenticular lenses are aligned to display different symbols every other row.

  For example, as shown in FIG. 9, the color of the symbol E and the color of the symbol F are alternately arranged, and one of the symbols can be seen depending on the viewing angle. For example, in the case of the viewpoint P2, the color of the symbol E can be seen, and in the case of the viewpoint P3, the color of the symbol F can be seen.

  In the present embodiment, when a lenticular is used in a predetermined area, the first code is applied as the symbol E, and the plain code, the design, or the second code in which the first code is not recorded is applied as the symbol F. . Then, a lenticular may be applied so that the first cord can be seen from one viewpoint position (line-of-sight direction).

  In this way, when the predetermined region of the object 40 is viewed from the viewpoint P2, the first symbol is recorded so that the first component is included in the light component received from the first symbol. Can do. Further, when the predetermined region of the object 40 is viewed from the viewpoint P3, the solid color, the design, or the solid component, the design, or the light component received from the second symbol includes the second component, or A second code can be recorded.

(2) Color Shifting In this embodiment, when visible light is irradiated using a polarizing ink (color shift ink) or a polarizing sheet (color shifting sheet), light is received from the symbol according to the viewing angle. The symbol may be recorded on the object such that the light component (component included in the reflected light from the symbol) changes. That is, the color may be formed on the predetermined area of the object 40 according to the present embodiment so that the color changes according to the viewing direction. In particular, the object 40 of the present embodiment records the first symbol so that the first component is included in the light component received by the observer when the object 40 is viewed from a specific direction. .

  For example, color shifting (color shifting film or color shift ink) is applied to a predetermined area of the object 40 according to the present embodiment, and the predetermined area of the object 40 is formed (printed) so that the color changes according to the viewing direction. )

  For example, in color shifting, thin polymer films are stacked and light interference is controlled by this multilayer structure. For example, as shown in FIG. 10A, in the case of the viewpoint P4 (when an object subjected to color shifting is viewed from the front), white light is incident on the eyes, as shown in FIG. 10B. In addition, in the case of the viewpoint P5 (when the object subjected to color shifting is viewed obliquely), cyan light out of white light is incident on the eye.

  In the present embodiment, when color shift ink is applied to a predetermined area, the first code is printed with color shift ink. That is, in the first code to which the color shift ink is applied, the light component received from the first code (reflected light from the first code) is changed from the first component to the second according to the viewing angle. It will change to the component of.

  For example, when the first code is printed with color shift ink, cyan light is reflected when the first code is viewed in a specific direction (for example, from the viewpoint P5). In the present embodiment, for example, when a predetermined region of the object 40 is viewed from the viewpoint P5, the first component (for example, the reflected light from the first code) of the light received from the first code (for example, The first symbol is recorded so as to include a cyan component.

(3) Embossing In this embodiment, when a printed matter having a latent image is used as an object, the component of light received from the symbol (reflected light from the symbol) when visible light is irradiated by embossing. The symbol may be recorded on the object so that the component contained in the object changes. That is, you may form so that a color may change according to the viewing direction by embossing the predetermined area | region of the target object 40 of this embodiment. In particular, the target object 40 of the present embodiment records the first symbol so that when the target object 40 is viewed from a specific direction, the first component is included in the received light component.

  Here, the embossing uses an embossed plate to give unevenness to the object, and uses this step to change the color depending on the viewing direction. In the present embodiment, when embossing is performed on a predetermined area, the first code is embossed. That is, the first component is included in the light component received from the first symbol (reflected light from the first code) when the predetermined region of the object 40 is viewed from a specific direction. Record one symbol.

  In addition, you may make it perform the embossing of the plain (it does not have a pattern) in which the 1st code | cord is not recorded, or the embossing in which the 2nd code | cord | chord is recorded.

(4) Stereoscopic video display screen In this embodiment, when a stereoscopic video display screen is used as an object, the component of light received from the first symbol depends on the angle at which the stereoscopic video display screen is viewed. An image based on the first symbol is generated to change. In particular, the target object 40 of the present embodiment records the first symbol so that when the target object 40 is viewed from a specific direction, the first component is included in the received light component.

  In the present embodiment, when generating a stereoscopic image, an image in which the first code is drawn and an image in which the first code is not recorded (for example, a pattern (plain) image), or What is necessary is just to synthesize | combine with the image by which code | cord | chord 2 was drawn, and to produce | generate a stereoscopic vision image.

  For example, when the predetermined region of the object 40 is viewed from a specific direction, the first symbol is displayed so that the first component of the light received from the first code is included.

  Further, when the predetermined region of the object 40 is viewed from another direction, the solid color or the design, or the solid color or the design so as to include the second component included in the light component received from the second code, Alternatively, the second code may be displayed.

  The stereoscopic video display screen is a flat panel display or the like, and has a lens plate arranged on the display screen substantially parallel to the display screen. The lens plate may be the lenticular described above. In addition to lenticular, any configuration capable of autostereoscopic viewing is acceptable.

3.2.5 Other Examples of Symbols The symbols recorded on the object of the present embodiment are not limited to codes, but may be colors, marks, designs, patterns, belt-like gradations, and the like. For example, as shown to FIG. 11 (A), you may give a different color to predetermined area | region A1 of the target object 40 according to the viewing direction. Specifically, as shown in FIG. 11A, in a predetermined area A1 of the object 40, the first direction (for example, the angle of viewing the object 40 with respect to the code recording surface is the first angle θ1). When viewed from the direction R1), red is recorded so that the color component of light received by the observer (color component of reflected light) is red. In addition, when the observer sees the predetermined area A1 of the object 40 from a second direction (for example, the second direction R2 in which the viewing angle of the object 40 with respect to the code recording surface is the second angle θ2), Black is recorded so that the color component of the received light (the color component of the reflected light) is black. In such a case, the red color data recorded in the predetermined area A1 may be defined in advance as “predetermined information” indicating the authenticity of the object. Also, red color data recorded in the predetermined area A1 is defined in advance as “first predetermined information”, and black color data recorded in the predetermined area A1 is defined in advance as “second predetermined information”. May be.

  In addition, as shown in FIG. 11B, the object of the present embodiment may be provided with different marks (designs, patterns, pictures) in a predetermined area A1 of the object 40 depending on the viewing direction. Specifically, as shown in FIG. 11B, in a predetermined area A1 of the object 40, a first direction (for example, the angle of viewing the object 40 with respect to the code recording surface is the first angle θ1). When viewed from the direction R1), the black circular mark is recorded so that the color component of the light received by the observer (the color component of the reflected light) becomes the color of the circular mark. In addition, when the observer sees the predetermined area A1 of the object 40 from a second direction (for example, the second direction R2 in which the viewing angle of the object 40 with respect to the code recording surface is the second angle θ2), The triangular mark is recorded so that the color component of the received light (the color component of the reflected light) is the color of the triangular mark. In such a case, the shape data of the circular mark recorded in the predetermined area A1 may be defined in advance as “predetermined information” indicating the authenticity of the object. Further, the circular mark shape data recorded in the predetermined area A1 is defined in advance as “first predetermined information”, and the triangular mark shape data recorded in the predetermined area A1 is defined as “second predetermined information”. It may be defined in advance.

  Further, the object of the present embodiment receives light from the first code from the first component of light (reflected light) received from the first code according to the viewing angle when visible light is irradiated. You may form so that it may change to the 2nd component of the light (reflected light) to do. For example, as shown in FIG. 11C, different codes may be applied to the predetermined area A1 of the object 40 depending on the viewing direction. Specifically, as shown in FIG. 11C, in a predetermined area A1 of the object 40, the first direction (for example, the angle of the object 40 viewed with respect to the code recording surface is the first angle θ1). The first code C1 is recorded so that the color component of the light received by the observer (the color component of the reflected light) becomes the color of the first code C1 when viewed from the direction R1). In addition, when the observer sees the predetermined area A1 of the object 40 from a second direction (for example, the second direction R2 in which the viewing angle of the object 40 with respect to the code recording surface is the second angle θ2), The second code C2 is recorded so that the color component of the received light (the color component of the reflected light) becomes the color of the second code C2. In this way, a plurality of pieces of information (for example, first and second codes) can be recorded in the limited area A1. In such a case, a numerical value included in the code data of the first code recorded in the predetermined area A1 may be defined in advance as “predetermined information” indicating the authenticity of the object. Also, a numerical value included in the code data of the first code recorded in the predetermined area A1 is defined in advance as “first predetermined information” and included in the code data of the second code recorded in the predetermined area A1. The numerical value to be used may be defined in advance as “second predetermined information”.

  Note that the object 40 of the present embodiment may be provided with a plurality of regions having different light components (reflected light components) depending on the viewing direction. In such a case, each area may be set based on the positional relationship between the marks M1 to M3.

3.3 Recognition Processing The reading device 10 according to the present embodiment images a target object and performs recognition processing of a captured image. For example, the object 40 whose light component (reflected light component) received by the observer changes according to the viewing angle is imaged, and recognition processing of the captured image is performed.

  As described above, as shown in FIG. 4, in the human eye, the component of light received from the object 40 (the component of reflected light) changes from the first component to the second component according to the viewing angle. To do. Therefore, the reading apparatus 10 according to the present embodiment performs code recognition processing using such a change in the light component (reflected light component) received by the observer.

  In the reading apparatus 10 of the present embodiment, for example, as illustrated in FIG. 12, the two imaging units 31 and 32 capture the object 40 that is the same subject at the same timing at the imaging positions P6 and P7. May be. Moreover, the reader 10 may image the target object 40 with one imaging unit.

  The recognition process of the present embodiment will be described in detail. For example, the reading device 10 uses the imaging unit 31 to at least receive the light component of the code from the first imaging position P6 and cannot recognize the light component. The object 40 is imaged from the second imaging position P7 that at least receives. Then, the reading device 10 according to the present embodiment performs recognition processing of the first captured image captured from the first imaging position P6 and the second captured image captured from the second imaging position P7.

  Then, for example, the reading device 10 determines whether or not the predetermined information indicating the authenticity of the target object can be recognized from the acquired first and second captured images.

  Specifically, when the reading device 10 sets the flag FC1 indicating whether or not to recognize the predetermined information (first predetermined information) to 1 or 0 and recognizes the predetermined information (first predetermined information), When FC1 = 1 is set and the predetermined information (first predetermined information) is not recognized (recognition error), FC1 = 0 is set. Specifically, as illustrated in FIG. 5, the reading device 10 according to the present embodiment recognizes predetermined information (first predetermined information) in the captured image 61 captured by the imaging unit 31 from the imaging position P6. Sets FC1 = 1. Similarly, when the predetermined information (first predetermined information) is not recognized in the captured image 62 captured by the imaging unit 32 from the imaging position P7, FC1 = 0 is set.

  The reading device 10 sets a flag FC2 indicating whether or not the second predetermined information can be recognized to 1 or 0. When the second predetermined information is recognized, the reading device 10 sets FC2 = 1 to set the second predetermined information. When information is not recognized (recognition error), FC2 = 0 may be set.

  In the reading device 10, the process of determining whether or not the first predetermined information can be recognized from the captured image is performed as follows. For example, using a certain threshold value, a portion (white portion) where the luminance of reflected light (light received) in the captured image is high is converted to “0”, and a portion where the luminance is low (black portion) is converted to “1”. Then, when the converted data matches the first predetermined information (for example, when the matching rate is equal to or higher than the predetermined matching rate), it is determined that recognition is possible. On the other hand, when it does not match the first predetermined information (for example, when the matching rate is equal to or lower than the matching rate), it is determined that recognition is impossible. Further, the recognition possibility determination processing may be performed on the basis of the matching degree by performing pattern matching between the image pattern of the first predetermined information defined in advance and the captured image. The process for determining whether or not the second predetermined information can be recognized from the captured image is performed in the same manner as the process for determining whether or not the first predetermined information can be recognized from the captured image.

  Further, in the reading device 10, it is determined whether or not the first predetermined information can be recognized from the captured image based on whether or not the recognized code data (decoded data obtained by decoding the code) includes a numerical value indicating authenticity. You may perform the process to do. For example, it may be determined that recognition is possible when a numerical value indicating authenticity exists in code data, and it may be determined that recognition is not possible when a numerical value indicating authenticity does not exist in code data.

  Further, the reading device 10 performs a process of determining whether or not the first predetermined information can be recognized from the captured image based on whether or not there are a predetermined number or more of pixels having a true color from the captured image. May be. For example, it is determined that recognition is possible when there are a predetermined number or more of pixels having a true color from the captured image, and it is determined that recognition is not possible when there is no predetermined number or more of the pixels having a true color from the captured image. May be.

  Further, the recognition possibility determination processing may be performed on the basis of the matching degree by performing pattern matching between the image pattern of the first predetermined information defined in advance and the captured image.

  The process for determining whether or not the second predetermined information can be recognized from the captured image is performed in the same manner as the process for determining whether or not the first predetermined information can be recognized from the captured image.

  Further, in the present embodiment, as shown in FIG. 8C, when the marks 40 are provided on the object 40, the mark M1 on the captured image is shown in FIG. The code range CR1 to be recognized may be specified from the positional relationship of .about.M3. The code range is a range on the captured image and is a range corresponding to a predetermined area of the object 40. In this way, since the range to be recognized on the captured image is limited, the processing load can be reduced.

  For example, as illustrated in FIG. 13A, when the captured image 63 is acquired, the positions Q1 to Q3 of the marks M1 to M3 are recognized as illustrated in FIG. 13B. Then, as shown in FIG. 13C, the code range CR1 is specified from the positional relationship between the positions Q1 to Q3 of the captured image 63. In this embodiment, recognition processing is performed within the specified code range CR1. For example, FC1 = 1 is set when the predetermined information (first predetermined information) can be recognized, and FC1 = 0 is set when the predetermined information (first predetermined information) cannot be recognized.

  Further, in the present embodiment, as shown in FIG. 8D, when marks M1 to M3 and other codes are described on the object 40, a plurality of marks to be recognized from the positional relationship between the marks M1 to M3. The code ranges CR11 and CR12 are specified.

  For example, a captured image captured by the imaging unit 31 is acquired. For example, as illustrated in FIG. 14A, when the captured image 65 is acquired, the positions Q11 to Q13 of the marks M1 to M3 are recognized as illustrated in FIG. 14B. Then, as shown in FIG. 14C, processing for specifying the code ranges CR11 and R12 from the positional relationship between the positions Q11 to Q13 of the captured image 65 is performed. In this embodiment, a process for recognizing a code is performed within the specified code ranges CR11 and R12.

  For example, FC1 = 1 is set when the predetermined information (first predetermined information) is recognized in the code range CR11, and FC1 = 0 is set when the predetermined information (first predetermined information) cannot be recognized. If the code can be recognized in the code range CR12, the information obtained from the code is used for the game process.

  In the recognition process of the present embodiment, the same object 40 may be imaged at different timings by a plurality of imaging units. In such a case, the object 40 is preferably stationary. In the present embodiment, three or more imaging units may be provided, and information may be recognized from three or more captured images.

  In this embodiment, the process of recognizing the code and the identification mark of the captured image is performed, but the process of recognizing not only the code and the identification mark but also an identifiable symbol such as a pattern, a picture, a character, and a color You may go.

3.4 Authentication Determination Processing In the present embodiment, authentication determination processing of the object 40 is performed based on the recognition result of the predetermined information.

3.4.1 Authenticity determination processing example 1
In the present embodiment, the predetermined information (first predetermined information) is recognized from one of the first captured image and the second captured image captured by the imaging unit, and the predetermined information is determined from the other captured image. When (first predetermined information) is not recognized, a process of determining the object as true (genuine) is performed. When the predetermined information is recognized from both of the first captured image and the second captured image, or when the predetermined information is not recognized from both of the captured images, the object 40 is false (fake). ).

  For example, as illustrated in FIG. 5, the reading device 10 according to the present embodiment has a flag FC1 that indicates whether or not the predetermined information (first predetermined information) of the captured image 61 captured from the imaging unit 31 is recognized, and the imaging unit When the flag FC1 of the captured image 62 captured from 32 is 0, it is determined to be true. Note that it is also determined to be true when the flag FC1 of the captured image 61 is 0 and the flag FC1 of the captured image 62 is 1.

  For example, as illustrated in FIG. 7, in the case of the counterfeit product 50, the reading device 10 sets the flag FC <b> 1 of the captured image 71 captured from the imaging unit 31 and the captured image 72 captured from the imaging unit 32. Since the flag FC1 is 1 and the same value, it is determined that the object 50 is a fake. Note that the object 50 is also determined to be fake even when the flags FC1 of the two captured images are both 0. As described above, according to the reading device 10 of the present embodiment, it is possible to easily distinguish between a real product and a fake product.

3.4.2 Authenticity determination processing example 2
Moreover, in this embodiment, 1st predetermined information is recognized from one captured image among the 1st captured image and 2nd captured image imaged by the imaging part, and it is 2nd predetermined from the other captured image. When the information is recognized, a process of determining the object as true (genuine) may be performed. In this way, since there are two stages of recognition processing, that is, recognition of the first predetermined information and recognition of the second predetermined information, the authenticity determination can be performed more appropriately. For example, in the reading device 10 of the present embodiment, the flag FC1 (flag FC1 indicating whether or not the first predetermined information can be recognized) of the captured image 61 captured from the imaging unit 31 is 1, and the imaging unit 32 When the captured image 62 flag FC2 (flag FC2 indicating whether or not the second predetermined information can be recognized) is 1, it may be determined to be true. Alternatively, when the flag FC2 of the captured image 61 is 1 and FC1 of the captured image 62 is 1, it may be determined to be true.

3.4.3 Authentication determination example 3
Furthermore, in this embodiment, as shown in FIG. 15, when the combination of information F1 and F2 recognized from each acquired captured image matches a predefined combination pattern, it is determined to be true. In this case, it may be determined as false. The information F1 and F2 recognized from each captured image is recognition result information recognized from the captured image, for example, code data, data obtained by analyzing the code data (information included in the code data), color information, and image information. Etc. Further, the information F1 and F2 recognized from each captured image may be recognized predetermined information (first predetermined information and second predetermined information).

  For example, as shown in FIG. 15, when the combination of the recognized information F1 and F2 of each captured image is (DA, D1) or (D1, DA), it corresponds to the pattern of ID = 1. Is determined. On the other hand, when the combination of the information F1 and F2 of each captured image is the same as (DA, DA) or the like, or when the combination does not exist in the predetermined definition pattern as shown in FIG. . In this way, authenticity determination can be performed more accurately.

3.4.4 Commonness Determination Processing In the present embodiment, the commonality (identity) of each captured image is determined based on the recognition result of the common marks M1 to M3 in each captured image captured by the imaging unit. However, if it is determined that there is commonality, authenticity determination may be performed. That is, when there is no commonality, it is determined to be a fake. In this way, for example, it is possible to eliminate imaging or the like when the object 40 that is the subject of the two captured images is different, or when the object 40 is completely different from the object 40 used in the game. Unauthorized imaging can be prevented.

  For example, in this embodiment, when the identification marks M1 to M3 are detected in the first captured image and the second captured image, it is determined that there is commonality. In the target object 40 of the present embodiment, each of a plurality of identification marks that can be viewed from any direction is recorded at each predetermined position, so that the positional relationship between the identification marks on the first captured image and the first The positional relationship between the identification marks on the two captured images may be compared, and if the comparison result satisfies a predetermined positional relationship condition, it may be determined that there is commonality.

  In the reading device 10 of the present embodiment, the distance from the imaging position P6 of the imaging unit 31 to the imaging position P7 of the imaging unit 32 and the imaging direction of the imaging units 31 and 32 are determined in advance. Therefore, based on the distance from the imaging position P6 of the imaging unit 31 to the imaging position P7 of the imaging unit 32 and the position coordinates Q1 to Q3 on the captured image of the identification marks M1 to M3, the object 40 with respect to the imaging position P6. And the distance N2 of the object 40 with respect to the imaging position P7. For example, in the present embodiment, the distances N1 and N2 are obtained, and when the difference value between the distances N1 and N2 is equal to or smaller than a predetermined value (when a predetermined positional relationship is satisfied), it is determined that there is identity. May be.

  In the reading apparatus 10 of the present embodiment, not only the distance from the imaging position P6 of the imaging unit 31 to the imaging position P7 of the imaging unit 32 but also the imaging directions of the imaging units 31 and 32 are determined in advance. Therefore, based on the distance from the imaging position P6 of the imaging unit 31 to the imaging position P7 of the imaging unit 32 and the position coordinates Q1 to Q3 on the captured image of the identification marks M1 to M3, the object 40 with respect to the imaging position P6. Direction (posture) U1 and the direction (posture) U2 of the object 40 with respect to the imaging position P7 can be obtained. For example, in this embodiment, the directions U1 and U2 are obtained, and when the difference value between the directions U1 and U2 is equal to or smaller than a second predetermined value (when a predetermined direction relation condition is satisfied), it is determined that there is identity. You may do it.

3.5 Determination Processing Further, in the present embodiment, information that is recognized from at least one captured image (recognition result information recognized from the captured image, for example, code data, the code, when determined to be true by authenticity determination) Game information is determined based on data (information included in the code data) obtained by analyzing the data, recognized predetermined information (first predetermined information, second predetermined information), color information, image information, etc.) It may be.

  For example, in the present embodiment, it is possible to perform processing for determining a player character to be operated by the player based on information recognized from the captured image.

  For example, when the information F is obtained in at least one of the recognition process of the first captured image and the recognition process of the second captured image, as shown in FIG. When F) is “DA”, since the character corresponding to “DA” is “human”, a process of determining the “human” character stored in the storage unit in advance as the player character is performed. .

  In addition, for example, as shown in FIG. 11C, when reading an object on which the first code C1 and the second code C2 are recorded, the code C1, There are cases where two pieces of information corresponding to C2 are recognized. In such a case, the character may be determined based on two pieces of information. For example, as shown in FIG. 15, when the first information recognized by the first captured image F1 is DA and the second information F2 recognized by the second captured image is D1, Among the human characters, the character “human 1” is determined as the player character. Thus, if there is a plurality of information, a variety of characters can be prepared.

3.6 Flow of Authentication Determination Processing Next, the flow of authentication determination processing will be described with reference to FIG. First, a plurality of captured images obtained by capturing an object are acquired. For example, captured images obtained by capturing an object from a plurality of different imaging positions are acquired (step S1).

  Next, it is determined whether each captured image has commonality (step S2). If the captured images have commonality (Y in step S2), the process proceeds to step S3. On the other hand, if it is determined that there is no commonality among the captured images (N in step S2), a false determination (step S5) is performed.

  Next, it is determined whether or not there is a difference in the code range of each captured image (step S3). For example, of the captured image captured by the imaging unit 31 and the captured image captured by the imaging unit 32, whether or not the combination is such that the predetermined information can be recognized from one captured image and the predetermined information cannot be recognized from the other captured image Determine.

  When there is a difference in the code range of each captured image (Y in step S3), for example, when the predetermined information can be recognized from one captured image and the predetermined information cannot be recognized from the other captured image. And true (step S4).

  On the other hand, when there is no difference in the code range of each captured image (N in step S3), for example, when predetermined information can be recognized from both captured images, or when predetermined information cannot be recognized from both captured images. , It is determined to be false (step S5). The process ends here.

3.7 Others 3.7.1 Number of imaging units In the present embodiment, two captured images are acquired by the plurality of imaging units 31 and 32, but at least one imaging unit may be used. For example, as illustrated in FIG. 18A, one imaging unit 30 images the object 40 from the imaging position P8. Then, as shown in FIG. 18B, the imaging unit 30 is moved, a position P9 different from P8 is set as a new imaging position of the imaging unit 30, and the object 40 is imaged from the position P9. Note that the object 40 may be set to be fixed or may be set to be variable. That is, in the present embodiment, two captured images, that is, a captured image captured at the imaging position P8 and a captured image captured at the imaging position P9 may be acquired.

3.7.2 Setting of Object In this embodiment, the position of the object 40 may be set variably. For example, as shown in FIG. 19A, the representative point (center point) of the object 40 is set to be located at the position P40, and the imaging unit 30 images the object 40 located at the position P40. Then, as shown in FIG. 19B, the object 40 (representative point of the object 40) is moved from the position P40 to the position P41. And the imaging part 30 images the target object 40 located in P41. Note that the imaging unit 30 may be set to be fixed or variable. That is, in the present embodiment, two captured images, that is, a captured image when the object 40 is disposed at the position P40 and a captured image when the object 40 is disposed at the position P41 may be acquired.

3.7.3 Shielding of natural light In this embodiment, natural light applied to the object 40 may be an example of light (visible light), but the natural light is shielded and a light source different from natural light (visible light source). The object 40 may be irradiated.

  For example, as shown in FIG. 20, the irradiation of the object 40 from the natural light L <b> 1 is shielded by the shielding object 70. In addition, the imaging unit 30 is arranged and set inside the shielding object 70 (the side where the object exists) so that the object 40 can be imaged.

  Then, the light source L2 is set at the light source position LP2 within the range AR where the natural light surrounded by the shield 70 is blocked, and the object 40 is irradiated with the light from the light source L2. In this way, the object 40 can be reliably irradiated with light from the light source L2 regardless of the environment. When natural light is shielded, all natural light may be shielded or a part of natural light may be shielded.

4). Modification 4.1 Overview In the above-described example, in the present embodiment, the imaging unit 30 (for example, the imaging units 31 and 32) captures an object (for example, a card), and each of the captured two captured images. Although it has been determined whether or not the predetermined information indicating the authenticity of the object can be recognized, a plurality of captured images may be acquired by variably setting the light source (light emitting unit) included in the reading device 10. Good. Then, when predetermined information can be recognized in one captured image among the plurality of acquired captured images and predetermined information cannot be recognized in the other captured image, a process of determining that the target is a true object is performed. Also good.

  For example, as shown in FIGS. 21A and 21B, a case will be described in which a card (an example of the object 40) on which a code with special ink is recorded is viewed from directly above. For example, as shown in FIG. 21A, when the card (object) 40 is irradiated from the light source position LP3 in the irradiation direction LR1, the code can be viewed. On the other hand, as shown in FIG. 21B, when the card (object) 40 is irradiated from the light source position LP4 in the irradiation direction LR2, the code cannot be seen.

  That is, in the modification of the present embodiment, authenticity determination (authentication determination) is performed by performing recognition processing of two captured images captured with different light source settings by setting various light sources. .

  For example, as illustrated in FIGS. 21A and 21B, the reading device 10 recognizes a code from a captured image captured by the imaging unit 30 when the light source is set in FIG. The code is not recognized from the captured image captured by the imaging unit 30 when the light source is set. In such a case, the card is determined to be a true card.

  On the other hand, there is a fake card 50 with normal ink that is visible from any direction in a predetermined area. For example, as shown in FIG. 22A, when the card 50 on which the code with the normal ink is recorded is irradiated in the irradiation direction LR1 from the light source position LP3, the code can be seen. As shown in (B), the code can also be seen when the light is irradiated from the light source position LP4 in the irradiation direction LR2. In such a case, the reading device 10 determines that a card in which normal ink is applied to the code portion is a fake card.

  That is, as illustrated in FIGS. 22A and 22B, the reading device 10 recognizes the code from the captured image captured by the imaging unit 30 when the light source is set in FIG. The code is recognized from the captured image captured by the imaging unit 30 when the light source is set. In such a case, the card is determined to be a fake card.

  Also in the modification of this embodiment, as described above, the object 40 (for example, a card) to which the polarized ink or the like is applied is handled as a regular object. That is, when a symbol (for example, a code) recorded on the object 40 is irradiated with light (visible light), reflected light from the symbol (light received from the symbol) changes depending on the viewing angle. Is. Details of the modification will be described below.

4.2 Setting of Light Source The reading apparatus 10 according to the modification of the present embodiment first variably sets at least one light source for irradiating an object. For example, the reading device 10 exclusively performs the first light source setting and the second light source setting with respect to at least one light source.

  That is, the reading apparatus according to the modification of the present embodiment performs the first and second light source settings. For example, the imaging unit 30 performs the first and second light source settings so that light components (reflected light components) received from symbols recorded on the object 40 are different. Then, at each of the first and second light source settings, the imaging unit images the object 40 to acquire two captured images, and performs recognition processing based on the acquired two captured images.

4.2.1 Specific example 1 of light source setting (light source intensity)
In the modification of the present embodiment, for example, the intensity of the light source may be set variably. Here, the intensity of the light source is at least one of luminance, luminous intensity, illuminance, luminous energy, luminous flux, luminous flux divergence, visibility, and luminous efficiency.

  For example, as shown in FIGS. 23A and 23B, the intensity of the light source may be variably set by changing the position of the light source. That is, as shown in FIG. 23A, the light source L4 irradiates the object 40 from the light source position LP5. Thereafter, the light source L4 is moved to the light source position LP6 where the object 40 can be irradiated with an intensity stronger than that of the light source position LP5. That is, the light source L4 is brought close to the object 40. When the light source position is moved to LP6, the light source L4 irradiates the object 40 from the light source position LP6 as shown in FIG. The light source position LP6 may be moved to a position where the object 40 can be irradiated with an intensity weaker than that of the light source position LP5 by moving the light source L4 away from the object.

  That is, in the present embodiment, a plurality of light source positions (first and second light source positions) having different intensities are set. And the captured image which imaged the target object irradiated from the 1st light source position and the captured image which imaged the target object irradiated from the 2nd light source position are acquired.

  Further, as shown in FIGS. 24A and 24B, the intensity of the light source may be variably set by dimming the light source L5. That is, as shown in FIG. 24A, the light source L5 irradiates the object 40 with the first intensity value d1 from the light source position LP7. Thereafter, the light source L5 is dimmed to a second intensity value d2 (d1 <d2) that is higher than the first intensity value d1, and as shown in FIG. 24B, the light source L5 is second from the light source position LP7. The object 40 is irradiated with the intensity value d2. The second intensity value d2 may be weaker than the first intensity value d1.

  That is, in the present embodiment, a plurality of intensity values (first and second intensity values) having different intensities are set. And the captured image which imaged the target object irradiated with the 1st intensity value and the captured image which imaged the target object irradiated with the 2nd intensity value are acquired.

  In the present embodiment, the intensity of the light source may be variably set by changing the irradiation direction of the light source to be described later or changing the number of irradiations of the light source.

4.2.2 Specific example 2 of light source setting (lightness of light source)
In the modification of the present embodiment, for example, the brightness of the light source may be set variably. The lightness of the light source includes each lightness of each RGB component of the light source. The brightness of the light source can be set in the same manner as the intensity of the light source.

  For example, as shown in FIGS. 23A and 23B, the lightness of the light source may be variably set by changing the light source position. That is, as shown in FIG. 23A, the light source L4 irradiates the object 40 from the light source position LP5. Thereafter, the light source L4 is moved to a light source position LP6 that can irradiate the object 40 with lighter brightness than the light source position LP5. That is, the light source L4 is brought close to the object 40. When the light source position is moved to LP6, the light source L4 irradiates the object 40 from the light source position LP6 as shown in FIG. Note that the light source position LP6 may be moved to a position where the object 40 can be irradiated with a lightness lower than that of the light source position LP5 by moving the light source L4 away from the object.

  That is, in this embodiment, a plurality of light source positions (first and second light source positions) with different brightness are set. And the captured image which imaged the target object irradiated from the 1st light source position and the captured image which imaged the target object irradiated from the 2nd light source position are acquired.

  Further, as shown in FIGS. 24A and 24B, the brightness of the light source may be variably set by adjusting the light source L5. That is, as shown in FIG. 24A, the light source L5 irradiates the object 40 with the first brightness value e1 from the light source position LP7. Thereafter, the light source L5 is dimmed to a second lightness value e2 (e1 <e2) stronger than the first lightness value e1, and as shown in FIG. 24B, the light source L5 is second from the light source position LP7. The object 40 is irradiated with the brightness value e2. The second lightness value e2 may be lighter than the first lightness value e1.

  That is, in the present embodiment, a plurality of brightness values (first and second brightness values) having different brightness values are set. And the captured image which imaged the target object irradiated by the 1st brightness value and the captured image which imaged the target object irradiated by the 2nd brightness value are acquired.

  Further, when setting the lightness of the light source, at least one component (for example, only the R component) of the three RGB components of light may be changed. For example, in this embodiment, a plurality of brightness values of different R components (lightness values of the first and second R components) are set. Then, a captured image obtained by imaging the object irradiated with the brightness value of the first R component and a captured image obtained by imaging the object irradiated by the brightness value of the second R component are acquired. Also good. Note that two captured images may be acquired by changing the G component and the B component in the same manner.

  In the present embodiment, the brightness of the light source may be variably set by changing the irradiation direction of the light source, which will be described later, or changing the number of irradiations of the light source.

4.2.3 Specific example 3 of light source setting (light source irradiation direction)
In the modification of this embodiment, the irradiation direction of the light source may be set variably. For example, as shown in FIG. 21A, the object 40 (card or the like) as shown in FIG. 21 (B) from the angle θ1 formed by the code recording surface of the object 40 (card or the like) and the irradiation direction LR1. The angle may be set to be changed to an angle θ2 (θ1> θ2) formed by the code recording surface and the irradiation direction LR2. Conversely, the angle formed between the code recording surface of the object 40 (such as a card) and the irradiation direction LR1 may be set by changing from θ2 to θ1.

  That is, in this embodiment, a plurality of different irradiation directions (first and second irradiation directions) are set. And the captured image which imaged the target object irradiated by the 1st irradiation direction and the captured image which imaged the target object irradiated by the 2nd irradiation direction are acquired.

4.2.4 Example 4 of light source setting (number of light source irradiations)
Moreover, in the modification of this embodiment, for example, the number of irradiations of the light source may be set variably. For example, as shown in FIG. 25A, the number of light sources that irradiate the object 40 is changed from one (light source L6) to the number of light sources that irradiate the object 40, as shown in FIG. It may be set by changing to two (light sources L6 and L7). That is, you may set so that the irradiation number of the light source irradiated to the target object 40 may be increased. Conversely, the number of light sources that irradiate the object 40 may be set to be reduced. Note that the number of light sources itself may be three or more, and the number of light sources that irradiate (turn on) the object 40 may be three or more.

  That is, in this embodiment, a plurality of light source settings (setting of the first irradiation number and setting of the second irradiation number) with different numbers of light source irradiations are performed. A captured image obtained by imaging the object irradiated by the first irradiation number and a captured image obtained by imaging the object irradiated by the second irradiation number are acquired.

4.2.5 Others In this embodiment, a plurality of light source settings are performed, but a plurality of light source settings may be performed so that at least one of the intensity, brightness, irradiation direction, and number of irradiations of the light sources is different. Good. Moreover, you may make it perform several different light source settings in another aspect.

4.3 Recognition Processing Next, the reader 10 according to the modification of the present embodiment captures a first captured image obtained by imaging the object when the first light source is set, and a first image obtained by imaging the object when the second light source is set. Two captured images are acquired, and recognition processing of the first and second captured images is performed. In the modification of the present embodiment, the timing at which the imaging unit 30 captures an image is changed according to the change state of the light source setting. Note that there may be at least one imaging unit 30 and two or more.

  For example, the reading device 10 according to the modification of the present embodiment determines whether or not predetermined information indicating the authenticity of the target object can be recognized from the acquired first and second captured images.

  Specifically, when the reading device 10 sets the flag FC1 indicating whether or not to recognize the predetermined information (first predetermined information) to 1 or 0 and recognizes the predetermined information (first predetermined information), When FC1 = 1 is set and the predetermined information (first predetermined information) is not recognized (recognition error), FC1 = 0 is set. Specifically, when predetermined information (first predetermined information) is recognized in the captured image 81 captured by the imaging unit 30 when the first light source is set, FC1 = 1 is set. Similarly, when the predetermined information (first predetermined information) is not recognized in the captured image 82 captured by the imaging unit 30 when the second light source is set, FC1 = 0 is set.

  The reading device 10 sets a flag FC2 indicating whether or not the second predetermined information can be recognized to 1 or 0. When the second predetermined information is recognized, the reading device 10 sets FC2 = 1 to set the second predetermined information. When information is not recognized (recognition error), FC2 = 0 may be set.

  In the reading device 10, the process for determining whether or not the first predetermined information can be recognized from the captured image, the process for determining whether or not the second predetermined information can be recognized from the captured image, and the like are as described above. .

  Moreover, also in the modification of this embodiment, as shown above, as shown in FIG. 8 (C), when the mark M1 to M3 is given to the object 40, it is shown in FIG. 13 (C). As described above, the code range CR1 to be recognized may be specified from the positional relationship between the marks M1 to M3 on the captured image.

  Further, also in the modification of the present embodiment, when marks M1 to M3 and other codes are described on the object 40 as shown in FIG. 8D, as shown in FIG. In addition, a process of specifying a plurality of code ranges CR11 and CR12 to be recognized from the positional relationship between the marks M1 to M3 may be performed. That is, processing for recognizing codes may be performed within the specified code ranges CR11 and CR12.

  For example, FC1 = 1 is set when the predetermined information (first predetermined information) is recognized in the code range CR11, and FC1 = 0 is set when the predetermined information (first predetermined information) cannot be recognized. If the code can be recognized in the code range CR12, the information obtained from the code is used for the game process.

  In addition, in the modification of the present embodiment, processing for recognizing the code and identification mark of the captured image is performed, but not only the code and identification mark but also identifiable symbols such as symbols, pictures, characters, and colors are recognized. You may perform the process to do.

4.4 Authentication Determination Processing Also in the modification of the present embodiment, the authentication determination processing of the object 40 is performed based on the recognition result of the predetermined information.

4.4.1 Example 1 of authenticity determination processing
In the present embodiment, predetermined information (1) is obtained from one of the captured images of the first captured image capturing the target object when the first light source is set and the second captured image capturing the target object when the second light source is set. When the first predetermined information) is recognized and the predetermined information (first predetermined information) is not recognized from the other captured image, a process of determining the object as true (genuine) is performed. When the predetermined information is recognized from both of the first captured image and the second captured image, or when the predetermined information is not recognized from both of the captured images, the object 40 is false (fake). ).

  For example, in the reading device 10 of the present embodiment, for example, the flag FC1 indicating whether or not the predetermined information (first predetermined information) of the captured image 81 captured by the imaging unit 30 at the time of setting the first light source is 1, When the flag FC1 of the captured image 82 captured by the imaging unit 30 at the time of setting the light source 2 is 0, it is determined to be true. In addition, when the flag FC1 of the captured image 81 is 0 and the flag FC1 of the captured image 82 is 1, it is determined to be true.

  For example, as illustrated in FIG. 22, in the case of the counterfeit product 50, the reading device 10 sets the flag FC1 of the captured image 91 captured by the imaging unit 30 when the first light source is set to 1 and the second light source setting. Since the flag FC1 of the captured image 92 captured from the image capturing unit 30 is sometimes 1 and the same value, it is determined that the object 50 is a fake. Note that the object 50 is also determined to be fake even when the flags FC1 of the two captured images are both 0. As described above, according to the reading device 10 of the present embodiment, it is possible to easily distinguish between a real product and a fake product.

4.4.2 Authenticity determination processing example 2
Also in the modification of the present embodiment, the first predetermined information is recognized from one of the first captured image and the second captured image, and the second predetermined information is acquired from the other captured image. When the object is recognized, a process of determining the object as true (genuine) may be performed. In this way, since there are two stages of recognition processing, that is, recognition of the first predetermined information and recognition of the second predetermined information, the authenticity determination can be performed more appropriately. For example, the reading device 10 has a flag FC1 (a flag FC1 indicating whether or not the first predetermined information can be recognized) of the captured image 81 captured by the imaging unit 30 when the first light source is set, and the second When the flag FC2 (flag FC2 indicating whether or not the second predetermined information can be recognized) of the captured image 82 captured by the imaging unit 30 at the time of setting the light source is 1, it may be determined to be true. Alternatively, when the flag FC2 of the captured image 81 is 1 and FC1 of the captured image 82 is 1, it may be determined to be true.

4.4.3 Authentication determination processing example 3
Furthermore, also in the modification of the present embodiment, as shown in FIG. 15, it is determined to be true when the combination of the information F1 and F2 recognized from each acquired captured image matches a predefined combination pattern. If not, it may be determined to be false. For example, as shown in FIG. 15, when the combination of the recognized information F1 and F2 of each captured image is (DA, D1) or (D1, DA), it corresponds to the pattern of ID = 1. Is determined. On the other hand, when the combination of the information F1 and F2 of each captured image is the same as (DA, DA), or when the combination does not exist in a predetermined definition pattern as shown in FIG. May be.

4.4.4 Commonness Determination Processing Also in the modified example of the present embodiment, the recognition results of the common marks M1 to M3 in each captured image captured by the imaging unit 30 with the first and second light source settings. The commonality (identity) of each captured image is determined based on the above, and the authenticity determination may be performed when it is determined that they have the commonality. That is, when there is no commonality, it is determined to be a fake. In this way, for example, it is possible to eliminate imaging or the like when the object 40 that is the subject of the two captured images is different, or when the object 40 is completely different from the object 40 used in the game. Unauthorized imaging can be prevented.

4.5 Determination Process Also in the modification of the present embodiment, information recognized from at least one captured image (recognition result information recognized from the captured image, for example, code, when determined to be true by authenticity determination) Game information based on data, data obtained by analyzing the code data (information included in the code data), predetermined information to be recognized (first predetermined information, second predetermined information), color information, image information, and the like) May be determined.

  For example, also in the modified example of the present embodiment, it is possible to perform a process of determining a player character to be operated by the player based on information recognized from the captured image.

  For example, when the information F is obtained in at least one of the recognition process of the first captured image and the recognition process of the second captured image, as shown in FIG. When F) is “DA”, since the character corresponding to “DA” is “human”, a process of determining the “human” character stored in the storage unit in advance as the player character is performed. .

  In addition, for example, as shown in FIG. 11C, when reading an object on which the first code C1 and the second code C2 are recorded, the code C1, There are cases where two pieces of information corresponding to C2 are recognized. In such a case, the character may be determined based on two pieces of information. For example, as illustrated in FIG. 15, when the first information F1 recognized by the first captured image is DA and the second information F2 recognized by the second captured image is D1, Among the human characters, the character “human 1” is determined as the player character. Thus, if there is a plurality of information, a variety of characters can be prepared.

4.6 Flow of Authentication Determination Processing Next, the processing flow of authentication determination will be described with reference to FIG. First, a plurality of captured images obtained by capturing an object are acquired. For example, in the modified example of the present embodiment, a captured image captured by the imaging unit 30 when the first light source is set and a captured image captured by the imaging unit 30 when the second light source is set are acquired. (Step S1).

  Next, it is determined whether each captured image has commonality (step S2). If the captured images have commonality (Y in step S2), the process proceeds to step S3. On the other hand, if it is determined that there is no commonality among the captured images (N in step S2), a false determination (step S5) is performed.

  Next, it is determined whether or not there is a difference in the code range of each captured image (step S3). For example, among the captured image captured when the first light source is set and the captured image captured when the second light source is set, the predetermined information can be recognized from one captured image, and the predetermined information cannot be recognized from the other captured image. It is determined whether or not there is.

  When there is a difference in the code range of each captured image (Y in step S3), for example, when the predetermined information can be recognized from one captured image and the predetermined information cannot be recognized from the other captured image. And true (step S4).

  On the other hand, when there is no difference in the code range of each captured image (N in step S3), for example, when predetermined information can be recognized from both captured images, or when predetermined information cannot be recognized from both captured images. , It is determined to be false (step S5). The process ends here.

4.7 Others In the modification of the present embodiment, a plurality of captured images are acquired by one imaging unit, but a plurality of captured images may be acquired using a plurality of imaging units. The imaging unit at the time of setting the first light source and the imaging unit at the time of setting the first light source may be imaged by different imaging units, respectively. For example, as shown in FIGS. 18A and 18B, the position of one imaging unit 30 may be set variably. Further, the position of the imaging unit 30 may be set to be fixed.

  Also in the modification of the present embodiment, as shown in FIGS. 19A and 19B, the position of the object 40 may be set variably. For example, the position of the object 40 at the time of setting the first light source and the position of the object 40 at the time of setting the second light source may be set variably, or the position of the object 40 may be fixed. .

  Moreover, although the modification of this embodiment is good also considering natural light irradiated to the target object 40 as an example of light (visible light), as shown in FIG. 20, it shields natural light and is different from natural light (visible light). The object 40 may be irradiated with a light source.

  For example, as shown in FIG. 20, the irradiation of the object 40 from the natural light L <b> 1 is shielded by the shielding object 70. In addition, the imaging unit 30 is arranged and set inside the shielding object 70 (the side where the object exists) so that the object 40 can be imaged (so as not to be shielded).

  Then, the light source setting described in the modification of the present embodiment may be performed within the range AR where the natural light surrounded by the shield 70 is blocked. That is, the set light source is disposed within the range AR. If it does in this way, the light from the light source set reliably can be irradiated to the target object 40 irrespective of an environment. When natural light is shielded, all natural light may be shielded or a part of natural light may be shielded.

4.8 Switching of Light Sources In this embodiment, as shown in FIGS. 26A and 26B, a plurality of light sources L6 and L7 are used, and irradiation (ON) and non-irradiation (OFF) of each light source are switched alternately. You may do it. In such a case, control is performed such that when one light source is irradiated, the other light source is not irradiated. And the imaging part performs the process which images the target object 40 at the timing which switches irradiation of each light source, and non-irradiation. In this way, the reading apparatus can accurately recognize the object 40 in which the light component (reflected light component) received by the observer changes according to the viewing angle. .

  More specifically, in the present embodiment, as shown in FIG. 26A, the first imaging in which the imaging unit 30 images the object 40 when the light source L6 is set on and the light source L7 is set off. As shown in FIG. 26B, the image capturing unit 30 acquires the image and the second captured image obtained by capturing the object 40 when the light source L6 is set to OFF and the light source L7 is set to ON. In this embodiment, the first captured image captured when the first light source is irradiated is recognized, and the second captured image captured when the second light source is irradiated is recognized. For example, as described above, based on the acquired recognition result of each captured image, a process for determining the authenticity of the object and a process for recognizing the object are performed.

  Further, the light sources L6 and L7 of the present embodiment are set so that visible light can be irradiated onto the object 40. The imaging position P16 of the imaging unit 30 is a position that receives at least the first component (color component, luminance component) of the reflected light of the target object 40 when irradiated with the light source L6, and the target object when irradiated with the light source L7. It is set to a position for receiving at least the second component of the 40 reflected light.

5. Server In the present embodiment, some or all of the processing performed by the processing unit 100 of the reading device 10 may be performed by the server 20. That is, as shown in FIG. 27, the server 20 is connected to the terminal 10 (reading device 10) via the network, and the server 20 and the terminal 10 perform processing for transmitting and receiving data.

  For example, when the server 20 receives a captured image from the terminal 10, the server 20 may perform processing for recognizing the captured image.

  That is, the server 20 of the present embodiment performs a process of receiving a captured image obtained by capturing the object 40 from a given terminal 10 (reading device 10 of the present embodiment) via the network, and the received captured image. The recognition process may be performed. As described above, the object 40 receives light from the first symbol (reflected light from the first symbol) according to the viewing angle when irradiated with light (for example, visible light). ) Changes so that the first symbol is recorded.

  For example, the terminal 10 uses a server to transmit a first captured image obtained by imaging the object 40 from the first imaging position and a second captured image obtained by imaging the object 40 from the second imaging position via the network. Then, the server 20 performs processing for receiving the first captured image and the second captured image from the terminal 10, performs recognition processing for the first captured image, and performs recognition processing for the second captured image. May be performed.

  In addition, the terminal 10 exclusively performs the first light source setting and the second light source setting with respect to at least one light source, and a first captured image obtained by capturing an object at the time of the first light source setting; When the second captured image obtained by capturing an object at the time of setting the second light source and transmitted to the server 20 via the network, the server 20 receives the first captured image and the second captured image from the terminal 10. The recognition processing of the first captured image may be performed, and the recognition processing of the second captured image may be performed.

  Further, the server 20 may determine the authenticity of the target object 40 that is a subject when the terminal 10 (or another imaging unit) captures an image.

  For example, the server 20 recognizes the first predetermined information from one captured image of the first captured image and the second captured image received from the terminal 10, and acquires the first predetermined information from the other captured image. If the object 40 is not recognized, a process for determining the object 40 as true may be performed.

  Further, when the server 20 recognizes the first predetermined information from one of the first captured image and the second captured image and recognizes the second predetermined information from the other captured image, the server 20 The object 20 may be determined to be true.

  In addition, the server 20 determines whether or not the first captured image and the second captured image have commonality, and the recognition result of recognizing the identification mark in the first captured image and the second captured image. Based on the above, it may be determined whether or not there is commonality between the first captured image and the second captured image. For example, when there is no commonality between the first captured image and the second captured image, the server 20 may perform a process of determining the object 40 as false.

  Further, the server 20 may perform a process of determining game information used in the game process based on the recognition process result of the first captured image and the recognition process result of the second captured image. For example, the server 20 may perform a process for determining game information used in the game process based on information recognized from the first captured image and information recognized from the second captured image. Note that the server 20 obtains game information used in the game process based on information recognized from the first captured image and information recognized from the second captured image when the target is determined to be true. You may make it perform the process to determine.

  Note that the server 20 of the present embodiment may transmit the determination result information, the determination result of the commonality between the first and second captured images, and the determined game information to the terminal 10. Further, the server 20 of the present embodiment may receive operation information from the terminal 10 and perform game processing. Then, the server 20 may transmit game information, character position information, game win / loss results, and the like to the terminal 10 to advance the game.

6). Housing In this embodiment, the reading device may be applied to a business game device. FIG. 28A illustrates an example of an arcade game device. For example, as shown in FIG. 28 (A), the game apparatus 10-1 is configured such that when an object 40 (card) having a predetermined size used for the game is inserted into a predetermined card insertion unit 70, the game apparatus 10-1. The card is imaged as a subject by the imaging unit included in 10-1, and recognition processing of each captured image is performed. And the authenticity determination process mentioned above is performed based on the recognition result of each captured image. Note that the insertion portion 70 may be formed so as to shield natural light, as shown in FIG.

  FIG. 28B shows another example of the arcade game apparatus. For example, as shown in FIG. 28 (B), when an object 40 (card) of a predetermined size used in a game is placed on a colorless and transparent placing table 60, it is placed by an imaging unit included in the game apparatus 10-2. The object 40 arranged on the pedestal 60 is imaged as a subject, and recognition processing of each captured image is performed. For example, the game device 10-2 performs a process of recognizing a symbol (code) recorded on the card by imaging the back surface of the card.

  The object 40 used in the game apparatuses 10-1 and 10-2 is a card in which symbols (codes) having different colors and luminances according to the viewing direction are recorded in a predetermined area. Note that in any of the game apparatuses 10-1 and 10-2, a plurality of captured images captured from a plurality of different imaging positions may be acquired. You may make it acquire the some captured image imaged in (2).

7). In addition, the recognition processing, authenticity determination processing, and the like performed in this embodiment include various game devices and games such as action games, role-playing games, battle games, racing games, music games, fighting games, shooting games, and flight shooting games. You may make it carry out with the server to provide.

  The present invention is not limited to the one described in the above embodiment, and various modifications can be made. For example, terms cited as broad or synonymous terms in the description in the specification or drawings can be replaced with broad or synonymous terms in other descriptions in the specification or drawings.

  The present invention includes configurations that are substantially the same as the configurations described in the embodiments (for example, configurations that have the same functions, methods, and results, or configurations that have the same objects and effects). In addition, the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced. In addition, the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiment or a configuration that can achieve the same object. Further, the invention includes a configuration in which a known technique is added to the configuration described in the embodiment. Note that the examples described in this embodiment can be freely combined.

10 Reading device (terminal),
100 processing unit, 110 commonality determining unit, 111 recognition processing unit,
112 authenticity determination unit, 113 game processing unit, 114 determination unit,
115 display control unit, 116 light source setting unit, 117 imaging unit setting unit,
118 object setting unit, 119 communication control unit, 120 drawing unit, 130 sound processing unit,
170 storage unit, 171 main storage unit, 172 image buffer, 173 captured image storage unit,
30 imaging units, 31 first imaging unit, 32 second imaging unit, 33 third imaging unit,
160 input unit, 162 detection unit,
180 information storage medium, 190 display unit,
192 sound output unit, 196 communication unit,
20 servers

Claims (13)

A program that images a target object irradiated with light and performs recognition processing of the captured image,
A light source setting unit that variably sets at least one light source for irradiating the object;
An imaging unit for imaging the object;
As a recognition processing unit that performs recognition processing of a captured image captured by the imaging unit, the computer functions,
The object includes a symbol that changes a component of light received by the imaging unit according to the setting of the light source,
The light source setting unit is
For at least one light source, the first light source setting and the second light source setting are performed exclusively,
The recognition processing unit
Recognizing the first captured image obtained by imaging the object at the time of setting the first light source and recognizing processing of the second captured image obtained by imaging the object at the time of setting the second light source. A program characterized by In claim 1,
The light source setting unit is
A program characterized by variably setting the intensity of the light source. In claim 1 or 2,
The light source setting unit is
A program for variably setting the lightness of the light source. In any one of Claims 1-3,
The light source setting unit is
A program characterized by variably setting the irradiation direction of the light source. In any one of Claims 1-4,
The light source setting unit is
A program characterized in that the number of irradiations of the light source is variably set. In any one of Claims 1-5,
As an authenticity determination unit that performs an authenticity determination process of the object, further function a computer,
The object includes a symbol corresponding to first predetermined information,
The authenticity determination unit
Of the first captured image and the second captured image, the object is recognized when the first predetermined information is recognized from one captured image and the first predetermined information is not recognized from the other captured image. A program characterized by performing a process for determining whether or not is true. In any one of Claims 1-6,
As an authenticity determination unit that performs an authenticity determination process of the object, further function a computer,
The object includes a first symbol corresponding to the first predetermined information and a second symbol different from the first predetermined information,
The authenticity determination unit
Of the first captured image and the second captured image, the object is recognized when the first predetermined information is recognized from one captured image and the first predetermined information is not recognized from the other captured image. A program characterized by performing a process for determining whether or not is true. In any one of Claims 1-7,
As an authenticity determination unit that performs an authenticity determination process of the object, further function a computer,
The object includes a first symbol corresponding to first predetermined information and a second symbol corresponding to second predetermined information,
The authenticity determination unit
Of the first captured image and the second captured image, when the first predetermined information is recognized from one captured image and the second predetermined information is recognized from the other captured image, the object is true. The program characterized by performing the process which determines. In any one of Claims 6-8,
As a commonality determination unit that determines whether or not there is commonality between the first captured image and the second captured image, the computer functions.
An identification mark that is visible from any direction is recorded on the object,
The commonality determination unit
Based on the recognition result of recognizing the identification mark in the first captured image and the second captured image, it is determined whether the first captured image and the second captured image have commonality. ,
The authenticity determination unit
The program which performs the process which determines that the said target object is false when there is no commonality in a said 1st captured image and a 2nd captured image. In any one of Claims 1-9,
A computer is caused to function as a determination unit that determines game information used in a game process based on information recognized from the first captured image and information recognized from the second captured image. program.   A computer-readable information storage medium, wherein the program according to any one of claims 1 to 10 is stored. A reading apparatus that captures an image of an object irradiated with light and performs recognition processing of the captured image,
A light source setting unit that variably sets at least one light source for irradiating the object;
An imaging unit for imaging the object;
A recognition processing unit that performs recognition processing of a captured image captured by the imaging unit,
The object includes a symbol that changes a component of light received by the imaging unit according to the setting of the light source,
The light source setting unit is
For at least one light source, the first light source setting and the second light source setting are performed exclusively,
The recognition processing unit
Recognizing the first captured image obtained by imaging the object at the time of setting the first light source and recognizing processing of the second captured image obtained by imaging the object at the time of setting the second light source. A reader characterized by. A server that performs recognition processing of a captured image,
A communication control unit that receives a captured image obtained by capturing an object irradiated with light from a given terminal via a network;
A recognition processing unit that performs a recognition process on the received captured image,
The object includes a symbol in which a component of light received by an imaging unit changes according to a light source setting that can be variably set,
The communication control unit
A first captured image obtained by capturing the object at the time of the first light source setting, in which the first light source setting and the second light source setting are performed exclusively for at least one light source; A process of receiving a second captured image obtained by capturing the object at the time of setting the second light source,
The recognition processing unit
A server that performs recognition processing of the first captured image and recognition processing of the second captured image.