JP2009015692A - Information reading system, program and information storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information reading system, for reading information from a medium using an imaging part for computing an instruction position, and to provide a program and an information storage medium therefor. <P>SOLUTION: The system comprises a light emitting plate (light emission part) 22 which emits light; a card 24 (medium) 24 which has a transmission area TA for transmitting the light from the light emitting plate 22 disposed according to information to be read; an imaging part 18 which images a receiving position of the light transmitted by the transmission area TA when imaging the card 24 placed on the light emitting plate 22 as an image; a storage part which stores reference information showing a reference position of the light receiving position in the image and outputs information corresponding to the reference information; a comparison part which compares the light receiving position in the image obtained by the imaging part 18 with the reference position of the reference information; and an information output part which outputs corresponding information based on the comparison result by the comparison part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

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

2. Description of the Related Art Conventionally, a game system using an indication position calculation system that calculates an indication position of an indicator on an indication surface such as a monitor or a screen, such as a shooting game system using a gun-type controller, is known. In such a game system, an infrared light emitting unit or the like is disposed in the vicinity of the pointing surface, and this is imaged by an imaging unit (light receiving sensor) provided at the tip of the pointing body, and based on the light receiving position in the captured image. The indication position of the indicator is calculated. As such a technique, for example, there is a conventional technique disclosed in Japanese Patent Laid-Open No. 10-249065.
Japanese Patent Laid-Open No. 10-249065

  However, the conventional game system has no idea of reading information from a card (medium) using an imaging unit for calculating the pointing position of the pointer, and the game system performs game calculation based on information read from the card. In this case, there is a problem that an information reading device such as a barcode reader must be prepared separately.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an information reading system capable of reading information from a medium using an imaging unit for calculating a designated position, It is to provide a program and an information storage medium.

(1) The present invention is an information reading system,
A light emitting unit that emits light;
A medium in which a transmission region that transmits light from the light emitting unit is arranged according to information to be read;
An imaging unit that captures an image of a light receiving position of light transmitted through the transmission region when the medium placed on the light emitting unit is imaged;
A storage unit that stores reference information indicating a reference position of the light receiving position in the image, and output information corresponding to the reference information;
A comparison unit that compares the light receiving position in the image captured by the imaging unit with a reference position of the reference information;
An information output unit that outputs corresponding information based on a comparison result by the comparison unit;
It is characterized by including.

The present invention also provides
A medium disposed according to information read by a transmission region that transmits light from a light emitting unit that emits light, and light transmitted through the transmission region when the medium placed on the light emitting unit is imaged A program for an information reading system including an imaging unit that images a light receiving position as an image,
A storage unit that stores reference information indicating a reference position of the light receiving position in the image, and output information corresponding to the reference information;
A comparison unit that compares the light receiving position in the image captured by the imaging unit with a reference position of the reference information;
An information output unit that outputs corresponding information based on a comparison result by the comparison unit;
The program relates to a program that makes a computer function. The present invention is also a computer-readable information storage medium, and relates to an information storage medium storing a program that causes a computer to function as each of the above-described units.

  In the present invention, the light emitting unit is a unit having a light source, which transmits light to all the transmission regions when a medium in which the transmission region is arranged is placed, and emits light from the light source. You may have a surface to do.

  In the present invention, the light emitting unit that emits light may be a light emitting unit that emits light of a predetermined wavelength. The transmission region that transmits light from the light emitting unit may be a transmission region that transmits light of a predetermined wavelength from the light emitting unit.

  In the present invention, the reference position of the light receiving position refers to position information that serves as a reference of the light receiving position.

  ADVANTAGE OF THE INVENTION According to this invention, information can be read from a medium by a simple process using the imaging part which can image the light receiving position as an image.

(2) In the information reading system according to the present invention,
It further includes an alignment member that can be attached to the imaging unit,
The medium includes
A reference mark indicating a position and an orientation for contacting the alignment member is provided,
The comparison unit includes:
The light receiving position in the image captured by the imaging unit in a state where the alignment member is in contact with the reference mark is compared with a reference position of the reference information.

  In the present invention, the reference mark may be a mark having a predetermined shape printed (displayed) on the medium, or may be a hole having a predetermined shape on the medium. In other words, the reference mark may be any mark that allows the player to identify the position and orientation with which the alignment member is brought into contact.

  According to the present invention, the position and orientation of the imaging unit with respect to the medium can be fixed at the time of imaging, and information can be read from the medium by simple processing without performing alignment processing after imaging.

(3) In the information reading system according to the present invention,
The medium includes
A display is provided for instructing an operator how to move or rotate the alignment member in contact with the reference mark,
The imaging unit
Capturing the light receiving position as a plurality of images within a given period in which the alignment member in contact with the reference mark is moved or rotated;
The storage unit
Storing a plurality of reference information indicating a reference position of the light receiving position in each of the plurality of images, and output information corresponding to the plurality of reference information,
The comparison unit includes:
The light receiving position in each image of a plurality of images captured by the imaging unit is compared with a reference position of each reference information of the plurality of reference information.

  According to the present invention, the arrangement pattern of the transmission regions is the same by changing the manner in which the alignment member is moved or rotated by outputting information based on the light receiving positions in each of the plurality of images captured by the imaging unit. A plurality of information can be read even from a medium. Therefore, it is possible to simplify the arrangement pattern of the transmissive areas to be arranged on the medium (for example, to reduce the number of transmissive areas to be arranged), and to read a lot of information from the medium even if the performance (for example, resolution) of the imaging unit is low. Can do.

(4) In the information reading system according to the present invention,
The alignment member is
The distance between the imaging unit and the medium in a state where the alignment member is in contact with the reference mark is formed so as to be adjustable in stages.
The medium includes
A display for instructing the operator of one of the distances in each step is performed,
The storage unit
Storing reference information indicating a reference position of the light receiving position in the image according to the distance of each step;
The comparison unit includes:
According to the light receiving position in the image picked up by the image pickup unit in a state where the alignment member whose distance is adjusted to any one of the steps is in contact with the reference mark, and the distance of each step The reference position of the reference information is compared.

  According to the present invention, it is possible to read a plurality of pieces of information even from a medium having the same arrangement pattern of the transmissive regions by making the distance between the imaging unit and the medium different during imaging. Therefore, it is possible to simplify the arrangement pattern of the transmissive areas to be arranged on the medium (for example, to reduce the number of transmissive areas to be arranged), and to read a lot of information from the medium even if the performance (for example, resolution) of the imaging unit is low. Can do.

(5) In the information reading system according to the present invention,
The medium includes
A plurality of the transmissive regions including at least one transmissive region whose position coincides with the transmissive region disposed in another medium;
The imaging unit
Imaging the light receiving position of the light transmitted through the transmission region where the position coincides when imaging the plurality of media placed on the light emitting unit as an image,
The storage unit
Storing reference information indicating a reference position of a light receiving position of light transmitted through the transmission region where the position in the image matches,
The comparison unit includes:
The light receiving position of the light transmitted through the transmission region in which the position in the image captured by the imaging unit coincides with the reference position of the reference information.

  According to the present invention, it is possible to read information according to the combination of a plurality of media placed on the light emitting unit, and to read different information by changing the combination of the plurality of media placed on the light emitting unit. .

(6) In the information reading system according to the present invention,
The light emitting unit
It has a positioning member for prescribing | regulating the position of the said medium with respect to the said light emission part when the said medium is set | placed on the said light emission part.

  According to the present invention, it is possible to reliably transmit light from the light emitting unit in all the transmission regions provided in the medium.

(7) In the information reading system according to the present invention,
It further includes a game calculation unit for performing a game calculation based on the information output by the information output unit.

  In the present invention, performing the game calculation based on the output information includes a case where the value of a predetermined parameter is calculated based on the output information, and the game calculation is performed based on the calculated parameter.

  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. System Overview FIG. 1 is a schematic external view of a game system 10 of this embodiment. A game system 10 according to the present embodiment includes a display unit 12 that displays a game image such as an operation target object CO on a display screen 11, and an infrared light source such as an infrared light LED that is provided above the display unit 12. A light-emitting unit 15 including two light-emitting units 13 and 14 and a controller 16 (indicator, which can be arbitrarily changed in position and orientation by being grasped by the player P and instructing an arbitrary position on the display screen 11. Pointing device) and a game machine 17 for performing game processing and the like.

  The light emitting units 13 and 14 of the present embodiment are provided with an infrared light source on the front surface thereof, and the front surface is aligned with the orientation of the display screen 11 which is the direction of the player's presence, and a predetermined distance is provided on the upper surface of the display unit 12. Fixedly installed. And the light emission parts 13 and 14 advance infrared light from a light source to a front direction.

  Further, the controller 16 of the present embodiment is provided with an image sensor 18 (light receiving unit, imaging unit) such as a CMOS sensor at the tip thereof, and infrared light (light emitting unit 13) incident from the direction in which the tip of the controller 16 is directed. , 14 is received (light in the same wavelength band as the light emitted from the light source 14), and is acquired (imaged) as an image. Information is transmitted and received between the game machine 17 and the controller 16 by wireless communication.

  Here, in the present embodiment, only the light in the wavelength band corresponding to the infrared light (the light having the same wavelength as the light from the light emitting units 13 and 14) is provided on the front side of the image sensor 18 (further the tip side of the controller 16). Is provided so that light incident on the image sensor 18 becomes light in a predetermined wavelength band. Note that an image sensor having a light receiving sensitivity characteristic in a predetermined wavelength band including infrared light (light having a predetermined wavelength) may be used as the image sensor 18 without providing the filter FI.

  Then, the game system 10 obtains the positional relationship between the light emitting units 13 and 14 and the controller 16 from the position information of the light emitting units 13 and 14 in the image captured by the image sensor 18 and the preset reference position information, and displays them. Information on the indicated position of the controller 16 on the screen 11 is calculated.

  Therefore, as shown in FIG. 1, when the player P moves the hand while holding the controller 16 to change the position and orientation of the controller 16 itself, the player P is displayed on the display unit 12 in accordance with the change in the position and orientation. The position and orientation of the operation target object CO can be changed. That is, the operation target CO can be operated by the movement of the controller 16 itself.

  FIG. 2 is a diagram illustrating an example of an image PC captured by the image sensor 18 when the controller 16 is directed toward the display screen 11. In the image sensor 18 of the present embodiment, a total of 22050 light receiving elements (imaging elements) of 175 × 126 are arranged in a matrix on a rectangular surface, and an image PC having one light receiving element as one pixel is displayed. Take an image. In the present embodiment, the image PC is updated every 1/60 seconds according to the position and orientation of the controller 16. Then, using the position information of the two infrared light source areas IrA1 and IrA2, which are areas where the infrared light from the light emitting units 13 and 14 is imaged, in the image PC, information on the indicated position of the controller 16 with respect to the display screen 11 is obtained. Calculate. In the present embodiment, the origin 16 that is the center point of the image PC1 is set as a point designated by the controller 16, and the origin O, the infrared light source areas IrA1 and IrA2 in the image PC, and the area corresponding to the display screen 11 in the image PC. Based on the positional relationship with a certain display screen area DpA, information on the indicated position of the controller 16 with respect to the display screen 11 is calculated.

  In the example of FIG. 2, slightly above the center of the image PC, a straight line l connecting the infrared light source regions IrA1 and IrA2 is θ with respect to the reference line L (X axis of the image sensor 18) of the image PC. In the rotated state, infrared light source regions IrA1 and IrA2 are formed. Accordingly, in the example of FIG. 2, the origin O can correspond to a predetermined position at the lower right of the display screen area DpA, and the coordinates of the indicated position of the controller 16 on the display screen 11 can be obtained. The rotation angle around the indicated direction axis of the controller 16 with respect to the display screen 11 can be obtained from the rotation angle θ with respect to the reference line L of the straight line l connecting the infrared light source regions IrA1 and IrA2. Further, by setting in advance a reference distance D between the infrared light source areas IrA1 and IrA2 when the controller 16 is at a predetermined distance from the display screen 11, the reference distance D and the infrared light source area in the example of FIG. Based on the ratio of the distance d between IrA1 and IrA2, the distance of the controller 16 relative to the display screen 11 in the example of FIG. 2 can be obtained.

  Thus, in the present embodiment, even if the player P moves his / her hand while holding the controller 16 as shown in FIG. 1 or the position and orientation of the controller 16 is changed by the movement of the player P himself / herself, Information such as the indicated position of the controller 16 can be calculated.

  In the example of FIG. 1, the arrangement position of the light emitting units 13 and 14 is the upper part of the display unit 12, but may be an arbitrary position such as a lower part or a side part of the display unit 12. That is, any position that has a given positional relationship with respect to the display unit 12 may be used as long as the image sensor 18 can receive light when the controller 16 instructs the display screen 11.

  FIG. 3 shows a functional block diagram of the light receiving position detector mounted on the controller 16 of the present embodiment. The light receiving position detection unit includes an image sensor 18, an ASIC 200, an MCU 300, and an IF 400.

  The image sensor 18 is initialized when receiving an initial signal from the MCU 300, receives infrared light incident from the direction in which the tip of the controller 16 is directed, acquires light reception information for each pixel, and moves the tip of the controller 16. Take an image in the direction you pointed. In this embodiment, the light reception information (light reception amount) of each pixel is acquired by hexadecimal 2 digits from 00 to FF. Then, with the pixel at the upper left corner of the image PC1 shown in FIG. 2 as the start point pixel and the pixel at the lower right corner in the drawing as the end point pixel, each line is operated from the upper row to the lower lower row, and the start point pixel to the end point are manipulated. The light reception information of each pixel up to the pixel is continuously output to the ASIC 200.

  The image sensor 18 outputs a pixel clock and a vertical synchronization signal to the control unit 220 of the ASIC 200, and outputs a pixel clock to the pixel counter 230. Thereby, the control unit 220 and the pixel counter 230 are synchronized with the output timing of the light reception information of each pixel of the image sensor 18.

  The ASIC 200 includes a determination unit 210, a control unit 220, and a pixel counter 230.

  Based on the light reception information of each pixel continuously output from the image sensor 18, the determination unit 210 determines whether each pixel satisfies a given condition (set according to the light amount of the light emitting units 13 and 14). It is determined whether it is larger than a threshold value. Specifically, the determination unit 210 determines that a given condition is satisfied when the light reception information of each pixel is 80 (2 hexadecimal digits) or more, and a pixel with light reception information of 80 or more corresponds to an infrared light source. It is assumed that it is a pixel to be.

  The determination unit 210 outputs an enable signal to the control unit 220 while determining that the light reception information of each pixel continuously output from the image sensor 18 satisfies a given condition.

  The control unit 220 permits writing of the count value output from the pixel counter 230 to the pixel FIFO 340 while receiving the enable signal from the determination unit 210. Here, the pixel counter 230 receives the vertical synchronization signal of the image sensor 18 from the control unit 220 and is reset, and the start point pixel of the image sensor 18 is set to 0 and the end point pixel 22050 is synchronized with the output of the light reception information of each pixel. Output the count value. Therefore, in this embodiment, the count value of the effective pixel determined that the light reception information satisfies the given condition is written in the pixel FIFO 340.

  The MCU 300 includes a pixel FIFO 340 and a light source position calculation unit 350.

  The pixel FIFO 340 stores data for one effective pixel for 128 pixels based on the data output from the ASIC 200. The data of each effective pixel is continuously output to the light source position calculation unit 350 in a first-in first-out manner.

  The light source position calculation unit 350 sets the count value of the first effective pixel determined to satisfy the given condition first, that is, the data stored in the pixel FIFO 340 first after the image sensor 18 is initialized. Based on this, the first determination region is set in a predetermined range including the first effective pixel. Then, based on the count value of the second effective pixel that is determined to satisfy the given condition first and is a pixel other than the first determination region, the second range is within a predetermined range including the second effective pixel. Set the judgment area. Based on the effective pixel count value (identification information) included in the first determination region and the effective pixel count value included in the second determination region among the effective pixels satisfying a given condition, the light source position Calculate (light receiving position).

  FIG. 4 is an enlarged view of a part of the image captured by the image sensor 18 and is a diagram for explaining the calculation of the representative value of the determination region. In FIG. 4, white squares indicate effective pixels that satisfy a given condition, and black regions indicate invalid pixel groups that do not satisfy a given condition. As shown in FIG. 4, when the image sensor 18 sequentially scans in the horizontal direction from the upper left pixel and outputs the light reception information of each pixel, and the determination unit 210 determines a given condition for each pixel, the pixel P1 is the highest. First, it is determined as the first effective pixel that satisfies the first condition. When the counter value of the first effective pixel P1 is input from the pixel FIFO 340 to the light source position calculation unit 350, the light source position calculation unit 350 has a predetermined range of rectangles including the first effective pixel as shown in FIG. A first determination area JA1 is set in the area. That is, when the first effective pixel is a pixel corresponding to one of the light emitting units 13 and 14, the first effective pixel is within a range in which it is estimated that another effective pixel corresponding to one of the light emitting units 13 and 14 exists. The determination area JA1 is set.

  Then, based on the count values of the effective pixels sequentially input from the pixel FIFO 340, it is determined whether or not each effective pixel is included in the first determination area JA1. Based on the count value of the effective pixels included in the first determination area JA1, the representative value (center of gravity coordinates) of the first determination area JA1 is obtained. In the present embodiment, the light source position calculation unit 350 obtains the barycentric coordinates of the first determination area JA1 after converting the count value of each effective pixel into the coordinate value of each pixel in the image PC captured by the image sensor 18.

  Specifically, the light source position calculation unit 350 obtains a remainder obtained by dividing the count value (any one of 0 to 22050) by 175 that is the number of pixels on the X axis of the image sensor 18, thereby obtaining the pixel value from the count value. The X coordinate in the image is calculated, and the quotient obtained by dividing the count value by 175 is obtained, whereby the Y coordinate in the image of the pixel is calculated from the count value. For example, the coordinate value (0, 0) is obtained from the count value 0 of the start point pixel as follows: X = 0 mod 175 = 0, Y = 0/175 = 0. Also, from the count value 14397, coordinate values (47, 82) are obtained as follows: X = 14397 mod 175 = 47, Y = 14397/175 = 82.

  Then, the light source position calculation unit 350 divides the sum of the X coordinate components of the effective pixels included in the first determination area JA1 by the sum of the number of effective pixels included in the first determination area JA1. The X coordinate component of the barycentric coordinate of JA1 is obtained. Similarly, by dividing the sum of the Y coordinate components of the effective pixels included in the first determination area JA1 by the sum of the number of effective pixels included in the first determination area JA1, Y of the barycentric coordinates of the first determination area JA1 Find the coordinate component.

  Further, the light source position calculation unit 350 sets the second determination area JA2 in a predetermined range including pixels other than the first determination area JA1 and first effective pixels determined to satisfy the first condition. The center coordinates (X2, Y2) are calculated for the second determination area JA2 in the same manner as the first determination area JA1. Then, the barycentric coordinates (X1, Y1) of the first determination area JA1 and the barycentric coordinates (X2, Y2) of the second determination area JA2 are output to the IF 400. Note that the light source position calculation unit 350 of the present embodiment can calculate four barycentric coordinates from one image.

  The IF 400 includes an interface 410 and a key function unit 420.

  The interface 410 outputs the centroid coordinates (X1, Y1) of the first determination area JA1 and the centroid coordinates (X2, Y2) of the second determination area JA2 input from the MCU 300 to the game machine 17. The key function unit 420 outputs an operation signal based on the trigger of the controller 16 and the operation of other operation keys.

  In the game machine 17, the indication position of the controller 16 on the display screen 11 is determined based on the barycentric coordinates (X1, Y1) of the first determination area JA1 and the barycentric coordinates (X2, Y2) of the second determination area JA2. Calculate. Specifically, the indication position calculation unit 360 is relatively left in the image PC among the barycentric coordinates (X1, Y1) of the first determination area JA1 and the barycentric coordinates (X2, Y2) of the second determination area JA2. The coordinates located at the upper left part of the display unit 12 are treated as the center coordinates of the light emitting unit 13 arranged at the upper left part of the display unit 12, and the coordinates located relatively on the right side are the centers of the light emitting units 14 arranged at the upper right part of the display unit 12 Treated as coordinates, the positional relationship between the light emitting units 13 and 14 and the controller 16 is obtained, the designated position of the controller 16 with respect to the display screen 11 is computed, and the game computation is performed based on the designated position and the operation signal.

2. System Outline to which Information Reading System is Applied FIG. 5 is a schematic external view of a game system 10 to which the information reading system of this embodiment is applied. In addition to the configuration shown in FIG. 1, the game system 10 of the present embodiment is arranged according to information read by a light emitting plate (light emitting unit) 22 and a region through which light from the light emitting plate 22 is transmitted. It further includes a (medium) 24 and an alignment member 26 that can be attached to the controller 16.

  The light emitting plate 22 of the present embodiment is formed of a transparent resin, and an infrared light source 28 covered with a diffusion cap for diffusing light is provided in the inside thereof. Further, as shown in FIG. A reflective member 32 that reflects is provided. Infrared light from the infrared light source 28 diffuses into the light emitting plate 22, and the diffused infrared light is reflected by the reflecting member 32, so that the entire upper surface of the light emitting plate 22 emits light. Further, the power of the infrared light source 28 is supplied from the controller 16.

  Further, the light emitting plate 22 of the present embodiment is provided with a positioning member 30 for defining the position of the card 24 with respect to the light emitting plate 22 when the card 24 is overlaid (placed or placed) on the light emitting plate 22. ing.

  Further, the card 24 of the present embodiment is arranged according to information read by the transmission area TA that transmits infrared light from the light emitting plate 22. The card 24 of the present embodiment is formed of paper that does not transmit infrared light, opaque resin, or the like, and a hole formed in the card 24 is arranged as a transmission area TA. Further, the card 24 is formed of a transparent resin, and the surface of the card 24 is divided into a paint that transmits infrared light and a paint that does not transmit, and an area coated with a paint that transmits infrared light is arranged as a transmission area TA. It may be. By doing so, it is possible to prevent the player from visually recognizing the position of the transmission area TA, and it is possible to prevent forgery of the card.

  Further, the alignment member 26 according to the present embodiment is attached to a connector capable of supplying power to the controller 16, and connects (attaches) the rod-like member 25 having a triangular prism shape (a prism having a triangular bottom) and the rod-like member 25 to the controller 16. It is comprised by the connection member 27 for.

  Further, the alignment member 26 of the present embodiment is formed such that the distance between the image sensor 18 and the card 24 in a state where the alignment member 26 is in contact with the card 24 can be adjusted stepwise. In this embodiment, the alignment member 26 (bar-shaped member 25) is formed so as to be adjustable in two stages, and the length of the alignment member 26 (bar-shaped member 25) itself is a length as shown in FIG. The distance L between the image sensor 18 and the card 24 is shortened by adjusting the distance, and the distance L between the image sensor 18 and the card 24 is adjusted by adjusting the length as shown in FIG. Can be lengthened.

  Here, in the present embodiment, the player puts the card 24 on the light emitting plate 22 and grips the controller 16 to which the alignment member 26 is attached, while the tip of the alignment member 26 (tip of the rod-like member 25) is placed on the card 24. Touch the provided fiducial mark. At this time, the image sensor 18 provided in the controller 16 receives the infrared light from the light emitting plate 22 that passes through the transmission area TA, and acquires (captures) this as an image. And the game system 10 reads information (card information) from the card | curd 24 imaged based on the light-receiving position of the infrared light which permeate | transmitted the permeation | transmission area | region TA in the image imaged by the image sensor 18, and performs game calculation based on the read card information. Do.

3. Next, the method of this embodiment will be described with reference to the drawings. FIG. 8A, FIG. 9A, FIG. 10A, FIG. 11A, FIG. 12A, and FIG. 13A are examples of the card 24 of this embodiment.

  The card 24 shown in FIG. 8A is provided with four transmission areas TA1, TA2, TA3, and TA4, and a triangular reference mark SM that indicates the position and direction in which the alignment member 26 is brought into contact. The player brings the alignment member 26 attached to the controller 16 into contact with the reference mark SM so that the shape (triangle) of the bottom surface of the alignment member 26 (bar-shaped member 25) matches the shape of the reference mark SM.

  FIG. 8B shows an image PC captured by the image sensor 18 in a state where the alignment member 26 is in contact with the reference mark SM of the card 24 shown in FIG. Here, the infrared light source regions IrA1, IrA2, IrA3, and IrA4 in the image PC are regions in which infrared light that has passed through the transmission regions TA1, TA2, TA3, and TA4 of the card 24 shown in FIG. .

  Here, in the present embodiment, the game system 10 is based on the position information (light receiving position) of the four infrared light source regions IrA1, IrA2, IrA3, and IrA4 in the image PC shown in FIG. 8B. The card information of the card 24 shown in FIG.

  Specifically, as described with reference to FIGS. 3 and 4, the light reception position detection unit mounted on the controller 16 has the light reception information of each pixel continuously output from the image sensor 18 as a given condition. It is determined whether or not it is satisfied, and the first determination area JA1 is set in a predetermined range including the first effective pixel determined to satisfy the given condition first. Based on the count value of the effective pixels included in the first determination area JA1, the barycentric coordinates of the first determination area JA1 (light receiving position of the infrared light source area IrA1) are obtained. Similarly, the light receiving positions of the infrared light source regions IrA2, IrA3, and IrA4 are obtained in the same manner. The obtained light receiving position is output to the game device 17. The game device 17 compares the light receiving position output from the controller 16 with the reference position of the light receiving position stored in the storage unit, and outputs information associated with the matching reference position as card information.

  In addition to the three transmission areas TA1, TA2, and TA3 and the reference mark SM, the card 24 shown in FIG. 9A is provided with an instruction display ID that instructs the player how to move the alignment member 26. . When such an instruction display ID is provided, the player contacts the reference mark SM with the alignment member 26 attached to the controller 16 so that the shape of the bottom surface of the alignment member 26 matches the shape of the reference mark SM. Then, the contacted alignment member 26 is moved rightward to the position (white triangle mark) indicated by the instruction display ID.

  FIG. 9B shows the image sensor 18 within a given period in which the alignment member 26 brought into contact with the reference mark SM of the card 24 shown in FIG. 9A is moved to the position indicated by the instruction display ID. Shows a plurality of images PC1, PC2, and PC3 taken by. Here, the image PC1 is an image captured when the alignment member 26 is in contact with the reference mark SM (at the start of movement), the image PC2 is an image captured during movement, and PC3 is the alignment member. 26 is an image picked up when the mark 26 is in contact with the white triangle mark (at the end of movement). The infrared light source areas IrA1, IrA2, and IrA3 in the image PC1 are areas in which infrared light that has passed through the transmission areas TA1, TA2, and TA3 of the card 24 shown in FIG. Infrared light source regions IrA1 and IrA2 are regions in which infrared light transmitted through the transmission regions TA1 and TA3 is imaged.

  Here, in the present embodiment, the game system 10 is stored in the storage unit and the position information (light receiving position) of the infrared light source region in each of the images PC1, PC2, and PC3 shown in FIG. 9B. The reference position of each reference information of a plurality of reference information is compared, and the card information of the card 24 shown in FIG. 8A is read based on the comparison result.

  Here, if the mode of moving the alignment member 26 is changed by changing the content of the instruction display ID of the card 24, each of a plurality of images captured by the image sensor 18 even if the arrangement pattern of the transmission area TA is the same. The light receiving position in the image (particularly, the image PC2 imaged during the movement and the PC3 imaged at the end of the movement) is also different. In this embodiment, since the card information is read by comparing the light receiving position of each of the plurality of captured images with the reference position of each reference information of the plurality of reference information, the contents of the instruction display ID are changed and the position is changed. Different card information can be read from a plurality of cards 24 having the same arrangement pattern of the transmission area TA by changing the manner (movement direction or movement locus) of moving the alignment member 26.

  In addition to the three transmission areas TA1, TA2, and TA3 and the reference mark SM, the card 24 shown in FIG. 10A is provided with an instruction display ID that instructs the player how to rotate the alignment member 26. . When such an instruction display ID is provided, the player contacts the reference mark SM with the alignment member 26 attached to the controller 16 so that the shape of the bottom surface of the alignment member 26 matches the shape of the reference mark SM. Then, the contacted alignment member 26 is rotated clockwise to the angle indicated by the instruction display ID.

  FIG. 10B shows the image sensor 18 within a given period in which the alignment member 26 brought into contact with the reference mark SM of the card 24 shown in FIG. 10A is rotated to the angle indicated by the instruction display ID. Shows a plurality of images PC1, PC2, and PC3 captured. Here, the image PC1 is an image captured when the tip of the alignment member 26 is in contact with the reference mark SM so that the shape of the tip of the alignment member 26 matches the shape of the reference mark SM (at the start of rotation), and the image PC2 is rotated. PC3 is an image captured at the end of the rotation of the alignment member 26. The infrared light source regions IrA1, IrA2, and IrA3 in the images PC1 and PC2 are regions in which infrared light that has passed through the transmission regions TA1, TA2, and TA3 of the card 24 shown in FIG. Infrared light source regions IrA1 and IrA2 are regions where infrared light transmitted through the transmission regions TA2 and TA3 is imaged.

  Here, in the present embodiment, the game system 10 is stored in the storage unit with the position information (light receiving position) of the infrared light source region in each of the images PC1, PC2, and PC3 shown in FIG. 10B. A plurality of pieces of reference information are compared with reference positions of the reference information, and the card information of the card 24 shown in FIG. 10A is read based on the comparison result.

  Here, if the mode of rotating the alignment member 26 is changed by changing the contents of the instruction display ID of the card 24, each of the plurality of images captured by the image sensor 18 even when the arrangement pattern of the transmission area TA is the same. The light receiving position in the image (particularly, the image PC2 imaged during the rotation and the PC3 imaged at the end of the rotation) is also different. In this embodiment, since the card information is read by comparing the light receiving position of each of the plurality of captured images with the reference position of each reference information of the plurality of reference information, the contents of the instruction display ID are changed and the position is changed. Different card information can be read from a plurality of cards 24 having the same arrangement pattern of the transmission areas TA by changing the mode (rotation direction or rotation angle) of rotating the alignment member 26.

  Here, in the present embodiment, three frames of images are extracted at intervals of 20 frames out of 60 frames captured within a given period (1 second) in which the alignment member 26 is moved or rotated. The card information is read based on the light receiving position of each frame image. That is, among the images shown in FIGS. 9B and 10B, the image PC2 shows an image taken 20 frames after the image PC1, and the image PC3 shows an image taken 40 frames after the image PC1. .

  In the card 24 shown in FIGS. 11A and 12A, in addition to the three transmission areas TA1, TA2, and TA3 and the reference mark SM, an instruction display ID for instructing the length of the alignment member 26 to the player. Is provided. When such an instruction display ID is provided, the player adjusts the length of the alignment member 26 to the length indicated by the instruction display ID, and moves the alignment member 26 attached to the controller 16 to the reference mark SM. Contact. Here, when the instruction display ID shown in FIG. 11 (A) is provided, the player adjusts the length of the alignment member 26 to the length shown in FIG. 7 (A). When the instruction display ID shown in FIG. 7 is provided, the length of the alignment member 26 is adjusted to the length shown in FIG.

  FIG. 11B shows a state in which the alignment member 26 adjusted to the length indicated by the instruction display ID shown in FIG. 11A is in contact with the reference mark SM of the card 24 shown in FIG. The image PC imaged by the image sensor 18 is shown. In FIG. 12B, the alignment member 26 adjusted to the length indicated by the instruction display ID shown in FIG. 12A is brought into contact with the reference mark SM of the card 24 shown in FIG. The image PC which the image sensor 18 imaged in the state is shown.

  Here, the position and number (arrangement pattern) of the three transmission areas TA1, TA2, and TA3 arranged on the card 24 shown in FIG. 11A and the card 24 shown in FIG. Since the length of the alignment member 26 indicated by ID is different, the positions of the infrared light source regions IrA1, IrA2, and IrA3 in the image PC shown in FIG. 11B and the image PC shown in FIG. Is different. In this embodiment, since the card information is read by comparing the light receiving position in the captured image with the reference position, the length of the alignment member 26 (image sensor) is changed by changing the content of the instruction display ID provided on the card. By making the distance between the card 18 and the card 24 different, it is possible to read different card information from a plurality of cards 24 having the same arrangement pattern of the transmission area TA.

  In the present embodiment, information can be read by capturing images in a state where a plurality of cards 24 are stacked. In that case, the player puts the plurality of cards 24 on the light emitting plate 22 in the same direction, and the alignment member 26 attached to the controller 16 is brought into contact with the reference mark SM provided on the card 24 put on top. .

  FIG. 13B shows an image PC imaged by the image sensor 18 when the three cards 24 shown in FIG. 13A superimposed on the light emitting plate 22 are imaged. Here, the infrared light source areas IrA1, IrA2, and IrA3 in the image PC are obtained by imaging the infrared light transmitted through the transmission areas TA1, TA2, and TA3 whose positions on the three cards 24 shown in FIG. It is an area.

  Here, in the present embodiment, the game system 10 compares the position information (light receiving position) of the infrared light source region in the image PC shown in FIG. 13B with the reference position of the reference information stored in the storage unit. Based on the comparison result, information is read from the combination of the three cards 24 shown in FIG.

4). Configuration Next, the configuration of the information reading system (game system) in the present embodiment will be described with reference to FIG. FIG. 14 is an example of a functional block diagram of the information reading system in the present embodiment. Note that the information reading system of this embodiment may have a configuration in which some of the components (each unit) in FIG. 14 are omitted.

  The operation unit 160 is for a player to input operation data. In particular, in the present embodiment, the player can arbitrarily change the position and orientation of the operation unit 160 by grasping the operation unit 160, and can indicate an arbitrary position on an instruction surface such as the display screen 11 ( Controller, shooting device, pointing device).

  The operation unit 160 is provided with a trigger as an operation element for the player to perform ON / OFF input. In addition to the trigger, a button, a lever (analog pad), a cross key, a steering wheel, a microphone, a touch panel display, and the like may be provided so that various operation data can be input.

  The operation unit 160 includes an imaging unit 162, a determination unit 164, and a calculation unit 166.

  The imaging unit 162 can be realized by an image sensor such as a CMOS sensor or a CCD camera, and receives light of each pixel from the start point pixel to the end point pixel with one end side of the captured image as a start point pixel and the other end side as an end point pixel. Output information continuously. Here, the imaging unit 162 may continuously output the light reception information of each pixel depending on the hardware configuration, or may continuously output the light reception information of each pixel under control by software. .

  In particular, the imaging unit 162 according to the present embodiment determines the light receiving position of light transmitted through the transmission region arranged on the card when the card (medium) superimposed (placed) on the light emitting plate (light emitting unit) is imaged. Capture as an image.

  In addition, the imaging unit 162 may capture the light receiving position as a plurality of images within a given period in which the alignment member in contact with the reference mark provided on the card is moved or rotated.

  Further, the imaging unit 162 may capture, as an image, a light receiving position of light transmitted through the transmissive region whose positions when the plurality of cards stacked on the light emitting plate are captured.

  The determination unit 164 can be realized by hardware such as various processors (CPU, MPU, DSP, etc.), ASIC (gate array, etc.), and a program, and is based on light reception information of each pixel continuously output from the imaging unit 162. Thus, it is determined whether each pixel satisfies a given condition.

  The calculation unit 166 can be realized by hardware such as various processors (CPU, MPU, DSP, etc.), ASIC (gate array, etc.), or a program, and whether each pixel by the determination unit 164 satisfies a given condition or not. Based on the determination result, the light receiving position of the light transmitted through the transmission region in the image captured by the imaging unit 162 or the light receiving position of the light from the light emitting units 13 and 14 is calculated.

  Note that the determination unit 164 and the calculation unit 166 may be integrally realized by a single processor or the like. Further, the determination unit 164 and the calculation unit 166 may be realized as functions of the processing unit 100 without being provided in the operation unit 160.

  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 storage unit 170 of this embodiment includes a main storage unit 171 used as a work area, a frame buffer 172 that stores a final display image, and an object data storage unit that stores model data of an object. 173, a texture storage unit 174 that stores textures for each object data, and a Z buffer 176 that stores Z values during object image generation processing. Note that some of these may be omitted.

  In particular, the storage unit 170 of this embodiment includes a reference information storage unit 178. The reference information storage unit 178 stores reference information indicating a reference position of a light receiving position of light transmitted through a transmission region in the image, and output information corresponding to the reference information.

  The reference information storage unit 178 may store a plurality of pieces of reference information indicating a reference position of the light receiving position in each image of the plurality of images and output information corresponding to the plurality of pieces of reference information.

  The reference information storage unit 178 may store reference information indicating a reference position of the light receiving position in the image according to the distance of each step.

  Further, the reference information storage unit 178 may store reference information indicating a reference position of a light receiving position of light transmitted through the transmission region where the positions in the image coincide with each other.

  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 information storage medium 180 stores a program (data) for the processing unit 100 to perform various processes of the present embodiment. That is, the information recording medium 180 stores 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, or the like. In particular, in the present embodiment, the light emitting unit 15 for calculating the relative position of the operation unit 160 and the display screen of the display unit 190 is provided in or around the display screen of the display unit 190. In the present embodiment, an infrared LED that emits invisible light is used as the light source of the light emitting unit 15.

  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 portable information storage device 194 stores player personal data, game save data, and the like. Examples of the portable information storage device 194 include a memory card and a portable game device.

  The communication unit 196 performs various controls for communicating with the outside (for example, a host device or other image generation system), and functions thereof are hardware such as various processors or communication ASICs, It can be realized by a program.

  Note that a program (data) for causing a computer to function as each unit of the present embodiment is distributed from the information storage medium of the host device (server) to the information storage medium 180 (storage unit 170) via the network and communication unit 196. May be. Use of the information storage medium of such a host device (server) can also be 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 communication information (trigger operation data, light reception position information) from the operation unit 160, a program, and the like. Here, the game process includes a process for starting a game when a game start condition is satisfied, a process for advancing the game, a process for placing an object such as a character or a map, a process for displaying an object, a hit check process, There is a process for calculating a game result or a process for ending a game when a game end condition is satisfied. The processing unit 100 performs various processes using 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.

  In particular, the processing unit 100 of the present embodiment includes a comparison unit 102, an information output unit 104, a pointing position calculation unit 106, a game calculation unit 108, a drawing processing unit 120, and a sound generation unit 130. Note that some of these may be omitted.

  The comparison unit 102 compares the light reception position (the light reception position of light transmitted through the transmission region calculated by the calculation unit 166) in the image captured by the imaging unit 162 and the reference information stored in the reference information storage unit 178. Compare with the reference position.

  The comparison unit 102 may compare the light receiving position in the image captured by the imaging unit 162 with the alignment member in contact with the reference mark and the reference position of the reference information.

  Further, the comparison unit 102 may compare the light receiving position in each image of the plurality of images captured by the imaging unit 162 with the reference position of each reference information of the plurality of reference information stored in the reference information storage unit 178. Good.

  In addition, the comparison unit 102 captures the image captured by the image capturing unit 162 in a state in which the alignment member whose distance between the image capturing unit and the card is adjusted to any one of the steps is in contact with the reference mark. The light receiving position in the image may be compared with the reference position of the reference information corresponding to the distance of each step stored in the reference information storage unit 178.

  In addition, the comparison unit 102 compares the light receiving position of the light transmitted through the transmission region where the position in the image captured by the imaging unit 162 matches the reference position of the reference information stored in the reference information storage unit 178. May be.

  The information output unit 104 outputs corresponding information (output information corresponding to the reference information) based on the comparison result by the comparison unit 102. Specifically, parameter information and command information are output.

  The indicated position calculation unit 106 calculates the indicated position of the operation unit 160 on the display screen 11 based on the light receiving position of the light from the light emitting units 13 and 14 calculated by the calculation unit 166.

  The game calculation unit 108 performs a game calculation based on the information output by the information output unit 104. Specifically, the parameter regarding the type of the character and the item owned by the character is calculated based on the information output by the information output unit 104, and the game calculation is performed based on the calculated parameter.

  The drawing processing unit 120 performs drawing processing based on the results of various processes (game processing) performed by the processing unit 100, thereby generating an image and outputting the image to the display unit 190. In this case, the image generated by the drawing processing unit 120 may be a so-called two-dimensional image or a three-dimensional image. When generating a three-dimensional image, first, geometric processing such as coordinate transformation (world coordinate transformation, camera coordinate transformation), clipping processing, or perspective transformation is performed, and based on the processing result, drawing data (primitive Vertex position coordinates, texture coordinates, color data, normal vector, α value, etc.) are created. Based on this drawing data (primitive data), a display object (one or a plurality of primitives) after perspective transformation (after geometry processing) can be stored in a drawing buffer (frame buffer or intermediate buffer) and image information in units of pixels. .VRAM). Thereby, an image that can be seen from the virtual camera (given viewpoint) in the game space is generated.

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

5). Processing of this Embodiment Next, an example of processing of the information reading system of this embodiment will be described using the flowchart of FIG.

  First, the light receiving position in the image captured by the imaging unit 162 is acquired from the calculation unit 166 (step S12).

  Next, with reference to the reference information stored in the reference information storage unit 178, it is determined whether or not the acquired light receiving position matches the reference position of the reference information. Here, for example, when the acquired light receiving position is (X1, Y1) (X2, Y2) (X3, Y3) and the reference position to be compared is (x1, y1) (x2, y2) (x3, y3) Compare (X1, Y1) and (x1, y1), (X2, Y2) and (x2, y2), (X3, Y3) and (x3, y3), respectively, It is determined that the position matches the reference position. Further, if the difference between the light receiving position and the reference position is within a predetermined range, it may be determined that they match.

  FIG. 16 shows an example of the reference information table stored in the reference information storage unit 178.

  The reference information table 500 shown in FIG. 16 includes reference information 510 indicating the reference position of the light receiving position, information 520 indicating whether each reference information constitutes a plurality of reference information, and output information 530 corresponding to each reference information. Is stored. Here, the reference information SI1 and SI2 indicate the reference position of the light receiving position in one image. The reference information SI3 is reference information composed of a plurality of pieces of reference information SI3-1, SI3-2, and SI3-3 indicating the reference position of the light receiving position in each of a plurality of images (three images). Information 520 indicating whether or not to configure a plurality of pieces of reference information corresponding to the reference information SI3 is “Yes”.

  If it is determined in step S14 that the acquired light receiving position does not match any of the reference positions, an error display indicating that information cannot be read from the card is displayed (step S16).

  If it is determined in step S14 that the light receiving position matches the reference position, it is determined whether or not the reference position is a reference position of reference information constituting a plurality of reference information (step S18). Specifically, the determination is performed with reference to information 520 indicating whether or not a plurality of pieces of reference information corresponding to the reference information 510 determined to match in the reference information table 500 shown in FIG. 16 is configured.

  If it is determined in step S16 that the reference position is not the reference position of the reference information constituting the plurality of reference information, the output information 530 corresponding to the reference information 510 determined to match is output (step 20). For example, if it is determined in step S14 that the acquired light receiving position matches the reference information SI1 shown in FIG. 16, the information 520 corresponding to the reference information SI1 is “No”, and the corresponding output information 530 is output. .

  If it is determined in step S16 that the reference position is the reference position of the plurality of pieces of reference information, the light receiving position in the image captured after the predetermined frame by the imaging unit 162 is acquired from the calculation unit 166 (step S22). Then, it is determined whether or not the acquired light receiving position matches the next reference information constituting the plurality of reference information (step S24). For example, if it is determined in step S14 that the acquired light receiving position matches the reference information SI3-1 shown in FIG. 16, the information 520 corresponding to the reference information SI3-1 is “Yes”, so the imaging unit 162 The light receiving position in the image captured 20 frames later is acquired from the calculation unit 166, and the acquired light receiving position matches the next reference information SI3-2 constituting the plurality of reference information SI3-1, SI3-2, SI3-3. Determine whether or not.

  If it is determined in step S24 that the acquired light receiving position does not coincide with the next reference position, the process proceeds to step S16 to display an error.

  If it is determined in step S24 that the acquired light receiving position matches the next reference position, it is determined whether all reference information constituting the plurality of reference information has been compared (step S26). If it is determined that the reference information is not compared, the process returns to step S22 to repeat the processes in and after step S22.

  If it is determined in step S26 that all reference information composing the plurality of reference information has been compared, output information 530 corresponding to the plurality of reference information is output.

  The present invention is not limited to that 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.

  In the present embodiment, the alignment member 26 itself is a technique for enabling adjustment of the distance between the imaging unit 162 (image sensor 18) and the card 24 in a state where the alignment member 26 is in contact with the reference mark SM. However, the mounting position when the alignment member 26 is attached to the controller (the position of the alignment member 26 attached to the controller 16 with respect to the controller 16) is stepwise. It may be formed to be adjustable.

  Further, in the present embodiment, three frames of images are extracted at intervals of 20 frames out of 60 frames captured within a given period (1 second) in which the alignment member 26 is moved or rotated. Although the case where the card information is read based on the light receiving position in each image of the frame has been described, for example, images of 6 frames are extracted from the 60 frames of images at intervals of 10 frames, and each of the images of the 6 frames is extracted. The card information may be read based on the light receiving position in the image.

  The present invention can also be applied to various game systems such as a business game system, a home game system, a portable game system, and a system board for generating a game image.

The figure which shows an example of the schematic external appearance of the system of this embodiment. The figure which shows an example of the image imaged by this embodiment. The figure which shows an example of the functional block of the controller of this embodiment. The figure which shows an example of a part of image imaged in this embodiment. The figure which shows an example of the schematic external appearance of the system of this embodiment. The figure which shows an example of the schematic external appearance of the light-emitting plate of this embodiment. The figure which shows an example of the schematic external appearance of the alignment member of this embodiment. Explanatory drawing of the method of this embodiment. Explanatory drawing of the method of this embodiment. Explanatory drawing of the method of this embodiment. Explanatory drawing of the method of this embodiment. Explanatory drawing of the method of this embodiment. Explanatory drawing of the method of this embodiment. The figure which shows an example of the functional block of this embodiment. The flowchart figure which shows an example of the process of this embodiment. The figure which shows an example of the data structure of the table of this embodiment.

Explanation of symbols

TA Transmission area SM Reference mark 18 Image sensor (imaging unit)
22 Light-emitting plate (light-emitting part)
24 cards (medium)
26 Positioning member 30 Positioning member 100 Processing unit 102 Comparison unit 104 Information output unit 106 Pointed position calculation unit 108 Game calculation unit 120 Drawing processing unit 130 Sound generation unit 160 Operation unit 170 Storage unit 180 Information storage medium 190 Display unit 192 Sound output Unit 194 portable information storage device 196 communication unit

Claims (9)

A light emitting unit that emits light;
A medium in which a transmission region that transmits light from the light emitting unit is arranged according to information to be read;
An imaging unit that captures an image of a light receiving position of light transmitted through the transmission region when the medium placed on the light emitting unit is imaged;
A storage unit that stores reference information indicating a reference position of the light receiving position in the image, and output information corresponding to the reference information;
A comparison unit that compares the light receiving position in the image captured by the imaging unit with a reference position of the reference information;
An information output unit that outputs corresponding information based on a comparison result by the comparison unit;
An information reading system comprising: In claim 1,
It further includes an alignment member that can be attached to the imaging unit,
The medium includes
A reference mark indicating a position and an orientation for contacting the alignment member is provided,
The comparison unit includes:
An information reading system that compares the light receiving position in the image picked up by the image pickup unit with the alignment member in contact with the reference mark and a reference position of the reference information. In claim 2,
The medium includes
A display is provided for instructing an operator how to move or rotate the alignment member in contact with the reference mark,
The imaging unit
Capturing the light receiving position as a plurality of images within a given period in which the alignment member in contact with the reference mark is moved or rotated;
The storage unit
Storing a plurality of reference information indicating a reference position of the light receiving position in each of the plurality of images, and output information corresponding to the plurality of reference information,
The comparison unit includes:
An information reading system that compares the light receiving position in each of a plurality of images captured by the imaging unit with a reference position of each reference information of the plurality of reference information. In claim 2 or 3,
The alignment member is
The distance between the imaging unit and the medium in a state where the alignment member is in contact with the reference mark is formed so as to be adjustable in stages.
The medium includes
A display for instructing the operator of one of the distances in each step is performed,
The storage unit
Storing reference information indicating a reference position of the light receiving position in the image according to the distance of each step;
The comparison unit includes:
In accordance with the light receiving position in the image captured by the imaging unit in a state where the alignment member whose distance is adjusted to one of the distances of each step is in contact with the reference mark, and the distance of each step An information reading system that compares a reference position of reference information. In any one of Claims 1 thru | or 4,
The medium includes
A plurality of the transmissive regions including at least one transmissive region whose position coincides with the transmissive region disposed in another medium;
The imaging unit
Imaging the light receiving position of the light transmitted through the transmission region where the position coincides when imaging the plurality of media placed on the light emitting unit as an image,
The storage unit
Storing reference information indicating a reference position of a light receiving position of light transmitted through the transmission region where the position in the image matches,
The comparison unit includes:
An information reading system, comprising: comparing a light receiving position of light transmitted through the transmission region where the positions in the image captured by the imaging unit coincide with a reference position of the reference information. In any one of Claims 1 thru | or 5,
The light emitting unit
An information reading system comprising a positioning member for defining a position of the medium with respect to the light emitting unit when the medium is placed on the light emitting unit. In any one of Claims 1 thru | or 6.
An information reading system further comprising a game calculation unit that performs a game calculation based on the information output by the information output unit. A medium disposed according to information read by a transmission region that transmits light from a light emitting unit that emits light, and light transmitted through the transmission region when the medium placed on the light emitting unit is imaged A program for an information reading system including an imaging unit that images a light receiving position as an image,
A storage unit that stores reference information indicating a reference position of the light receiving position in the image, and output information corresponding to the reference information;
A comparison unit that compares the light receiving position in the image captured by the imaging unit with a reference position of the reference information;
An information output unit that outputs corresponding information based on a comparison result by the comparison unit;
A program that causes a computer to function.   A computer-readable information storage medium, wherein the program according to claim 8 is recorded.

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