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Two-dimensional code generation method, two-dimensional code, two-dimensional code recognition method, and image recognition device

  • US 8,406,526 B2
  • Filed: 08/30/2011
  • Issued: 03/26/2013
  • Est. Priority Date: 06/21/2006
  • Status: Active Grant
First Claim
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1. A two-dimensional code generation method comprising:

  • a binary data string generation step of generating a binary data string uniquely associated with given data based on the given data;

    a point placement step of setting point placement reserved positions at each of which a point may be placed in a two-dimensional region, and placing a point at each of the point placement reserved positions in the two-dimensional region according to a preset binary data string placement condition based on the binary data string;

    a connection step of connecting points placed in the two-dimensional region through a line according to a preset connection condition; and

    an image generation step of generating an image of the two-dimensional code based on the line.

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