Object, image data, image data transmission method, card, game mat, card game system, image analysis apparatus, and image analysis method
First Claim
Patent Images
1. A card comprising:
- a reference cell having a predetermined shape;
a plurality of polygonal cells forming code data; and
a plurality of corner cells having an identical shape, whereineach of the plurality of corner cells occupies a larger area than any of the polygonal cells, andall of the polygonal cells are provided outside an area surrounded by the plurality of corner cells.
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Accused Products
Abstract
There is provided a two-dimensional code capable of performing accurate recognition. The two-dimensional code includes: a code data portion (102) where a plurality of square cells (106) are two-dimensionally arranged to constitute code data; and a plurality of corner cells (104) arranged so as to surround the code data portion (102). The corner cells (104) are configured with a greater area than the square cells (106). When the two-dimensional code is imaged by an imaging device, the corner cells (104) can be recognized in a large scale, thereby improving the two-dimensional code read accuracy.
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Citations
19 Claims
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1. A card comprising:
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a reference cell having a predetermined shape; a plurality of polygonal cells forming code data; and a plurality of corner cells having an identical shape, wherein each of the plurality of corner cells occupies a larger area than any of the polygonal cells, and all of the polygonal cells are provided outside an area surrounded by the plurality of corner cells. - View Dependent Claims (2, 3, 4)
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5. A rectangular card comprising:
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a reference cell having a predetermined shape; a plurality of polygonal cells forming code data; and a plurality of corner cells having an identical shape, wherein each of the plurality of corner cells occupies a larger area than any of the polygonal cells, all of the polygonal cells are provided outside an area surrounded by the plurality of corner cells, the plurality of corner cells are provided at a first edge and a second edge of the card opposite to each other, and at least some of the plurality of polygonal cells are provided in the neighborhood of a third edge different from the first edge and the second edge and are arranged parallel with the third edge. - View Dependent Claims (6, 7, 8)
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9. A rectangular card comprising:
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a reference cell having a predetermined shape; a plurality of polygonal cells forming code data; and four corner cells, wherein each of the four corner cells occupies a larger area than any of the polygonal cells, all of the polygonal cells are provided outside an area surrounded by the plurality of corner cells, two of the corner cells are provided in the neighborhood of a first edge, and the other two corner cells are provided in the neighborhood of a second edge opposite to the first edge, and some of the plurality of polygonal cells are provided in the neighborhood of a third edge different from the first edge and the second edge and are arranged parallel with the third edge, and the other polygonal cells are provided in the neighborhood of a fourth edge opposite to the third edge and are arranged parallel with the fourth edge. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A card comprising:
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a rectangular reference cell; a plurality of square cells forming code data; and four corner cells assigned a color different from the color of the reference cell, wherein the card is imaged by an imaging apparatus so that an image analysis apparatus acquires the code data from a frame image thus captured, the reference cell is detected from binary data produced by allowing a binarization processor of the image analysis apparatus to set up a range of pixel values in the RGB format and translate the frame image into a binary representation, the corner cells are detected from binary data produced by allowing the binarization processor to set up a range of pixel values in the RGB format different from the range set up for detection of the reference cell and translate the frame image into a binary representation, and the code data is acquired from the plurality of square cells by allowing the image analysis apparatus to read the layout of the plurality of square cells using the corner cells thus detected. - View Dependent Claims (17)
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18. Image data generated in accordance with a data format for displaying a two-dimensional code on a display, comprising:
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data for displaying a rectangular reference cell at a predetermined first coordinate position on the display; data for displaying a plurality of square cells forming code data on a predetermined second coordinate position on the display; and data for displaying four corner cells, occupying a larger area than the square cells and assigned a color different from the color of the reference cell, at a predetermined third coordinate position on the display, wherein the reference cell, the square cells, and the corner cells displayed at predetermined positions on the display are imaged by an imaging apparatus so that an image analysis apparatus acquires the code data from a frame image thus captured, the reference cell is detected from binary data produced by allowing a binarization processor of the image analysis apparatus to set up a range of pixel values in the RGB format and translate the frame image into a binary representation, the corner cells are detected from binary data produced by allowing the binarization processor to set up a range of pixel values in the RGB format different from the range set up for detection of the reference cell and translate the frame image into a binary representation, and the code data is acquired from the plurality of square cells by allowing the image analysis apparatus to read the layout of the plurality of square cells using the corner cells thus detected.
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19. A method for transmitting image data generated in accordance with a data format for displaying a two-dimensional code on a display, the image data transmitted comprising:
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data for displaying a rectangular reference cell at a predetermined first coordinate position on the display; data for displaying a plurality of square cells forming code data on a predetermined second coordinate position on the display; and data for displaying four corner cells, occupying a larger area than the square cells and assigned a color different from the color of the reference cell, at a predetermined third coordinate position on the display, wherein the reference cell, the square cells, and the corner cells displayed at predetermined positions on the display are imaged by an imaging apparatus so that an image analysis apparatus acquires the code data from a frame image thus captured, the reference cell is detected from binary data produced by allowing a binarization processor of the image analysis apparatus to set up a range of pixel values in the RGB format and translate the frame image into a binary representation, the corner cells are detected from binary data produced by allowing the binarization processor to set up a range of pixel values in the RGB format different from the range set up for detection of the reference cell and translate the frame image into a binary representation, and the code data is acquired from the plurality of square cells by allowing the image analysis apparatus to read the layout of the plurality of square cells using the corner cells thus detected.
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Specification