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EP-4328795-B1 - INFORMATION PROCESSING SYSTEM AND PROGRAM

EP4328795B1EP 4328795 B1EP4328795 B1EP 4328795B1EP-4328795-B1

Inventors

  • TAMI KENICHIRO
  • IIDA NAOMI
  • NASUBIDA SHINYA
  • KINOSHITA Go
  • SUGA Haruhito

Dates

Publication Date
20260506
Application Date
20220418

Claims (5)

  1. An information processing system (10, 10A, 10D, 10E, 10F) comprising: a first acquisition section (101, 101A, 101D, 101E) acquiring first pattern data (310, 310B, 310C, 310D) and an identifier (320, 320B, 320C, 320D) from image data (300, 300B, 300C, 300D, 300F) comprising a first cell (300D-1) having a first color, a second cell (300D-2) having a second color, a third cell (300D-3) having a third color, and three cutout symbols; a second acquisition section (201, 201A) acquiring second pattern data from a database (221, 221B, 221C) based on the identifier (320, 320B, 320C, 320D); and a generation section (202, 202A, 202D) combining the first pattern data with the second pattern data to generate a two-dimensional code (315D), wherein the first color, the second color, and the third color are different from each other, characterized in that the first pattern data (310, 310B, 310C, 310D) is acquired by executing a color reduction processing or a color addition processing of the third color on the image data, the identifier is acquired by executing a color reduction processing or a color addition processing of the second color on the image data (300, 300B, 300C, 300D, 300F), and one of the three cutout symbols is deleted in the first pattern data (310, 310B, 310C, 310D).
  2. The information processing system (10, 10A, 10D, 10E, 10F) according to claim 1, wherein the second color is a complementary color of the third color.
  3. The information processing system (10, 10A, 10D, 10E, 10F) according to claim 2, wherein the second color is one of red and blue green, and wherein the third color is the other of red and blue green.
  4. The information processing system (10, 10A, 10D, 10E, 10F) according to claim 2, wherein the second color is one of reddish-purple and green, and wherein the third color is the other of reddish-purple and green.
  5. The information processing system (10, 10A, 10D, 10E, 10F) according to claim 1, wherein the one of three cutout symbols has the third color.

Description

TECHNICAL FIELD An embodiment of the present invention relates to an information processing system for generating a two-dimensional code. BACKGROUND ART A two-dimensional code such as a QR code (registered trademark) includes more information than a one-dimensional barcode, and users can easily obtain a lot of information just by reading the two-dimensional code. Therefore, in recent years, the use of the two-dimensional code has increased in various fields such as process management, inventory management, and payment. For example, Patent Literature 1 discloses a ticket with a two-dimensional code. Furthermore, Patent Literature 2 discloses an insurance policy with a two-dimensional code. Patent Literature 3 discloses an information processing system according to the preamble part of claim 1. From Patent Literature 4 describes encoding a barcode with information, wherein high-contrast (usually black and white) elements of the barcode are readable by a standard barcode reader, while white elements are substituted by non-white, light colors, e.g., highly saturated colors which are light enough to be read as if they were white elements by the standard barcode reader, but contain information that can only be read by a proprietary reader. CITATION LIST PATENT LITERATURE Patent Literature 1: JP 2015-165342 APatent Literature 2: JP H11-221990 APatent Literature 3: US 2020/226438 A1Patent Literature 4: WO 2015/012827 A1 SUMMARY OF INVENTION TECHNICAL PROBLEM However, two-dimensional codes are often copied by a copying machine and used illegally (i.e., two-dimensional codes are forged). Therefore, in order to prevent the forgery of two-dimensional codes, the Patent Literature 1 discloses a two-dimensional code that uses inks with different reflective properties. Further, the Patent Literature 2 discloses a two-dimensional code that is attached with a dummy image when it is copied. The main purpose of the Patent Literatures 1 and 2 is to prevent the forgery of the two-dimensional code of the printed matter that is reproduced by the copying machine. However, in recent years, after the two-dimensional code is read by information terminals such as smartphones, the read electronic data itself is increasingly used. Therefore, in the use of the two-dimensional code, it is required to prevent duplication of electronic data. In view of the above-mentioned problems, one object of the present invention is to provide an information processing that can convert acquired electronic data into a two-dimensional code including authorized information and provide the two-dimensional code or the information accompanying the two-dimensional code as regular content. SOLUTION TO PROBLEM An information processing system according to an aspect of the present invention is defined in claim 1. Advantageous embodiments may be implemented according to any of the dependent claims. ADVANTAGEOUS EFFECTS OF INVENTION An information processing system according to an embodiment of the present invention converts electronic data (for example, image data acquired by capturing) corresponding to a composite code (including a two-dimensional code) into a two-dimensional code including authorized information. Therefore, since the authorized information cannot be acquired by simply reading the composite code with an information terminal, electronic duplication of the two-dimensional code including the authorized information can be prevented. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a block diagram illustrating an outline of an information processing system according to an embodiment of the present invention.FIG. 2 is a block diagram showing a configuration of an information processing system according to an embodiment of the present invention.FIG. 3 is a flowchart of a two-dimensional code generation processing executed by an information processing system according to an embodiment of the present invention.FIG. 4 is a schematic diagram illustrating a two-dimensional code generation processing executed by an information processing system 10 according to an embodiment of the present invention.FIG. 5 is a schematic diagram illustrating a two-dimensional code generation processing executed by an information processing system 10 according to an embodiment of the present invention.FIG. 6 is a block diagram showing a configuration of an information processing system according to an embodiment of the present invention.FIG. 7 is a schematic diagram illustrating a two-dimensional code generation processing executed by an information processing system according to an embodiment of the present invention.FIG. 8 is a schematic diagram illustrating a two-dimensional code generation processing executed by the information processing system according to an embodiment of the present invention.FIG. 9 is a schematic diagram illustrating image data generated by an imaging unit of the information processing system according to an embodiment of the present invention.FIG. 10 is a schem