Dot-matrix graphic formed by ink dots with characteristic microscopic characteristic and method for distinguishing dot-matrix graphic authenticity

A technology of dot matrix graphics and dot matrix images, which is applied in the field of anti-counterfeiting marks, can solve the problems of single ink dot shape and inability to achieve anti-counterfeiting effects, and achieve good anti-counterfeiting effects

Inactive Publication Date: 2014-09-10
LEADER TECH BEIJING DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the position of the ink dot is obtained through the relevant algorithm, but because the shape of the ink dot is relatively simple, it cannot achieve a better anti-counterfeiting effect

Method used

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  • Dot-matrix graphic formed by ink dots with characteristic microscopic characteristic and method for distinguishing dot-matrix graphic authenticity
  • Dot-matrix graphic formed by ink dots with characteristic microscopic characteristic and method for distinguishing dot-matrix graphic authenticity
  • Dot-matrix graphic formed by ink dots with characteristic microscopic characteristic and method for distinguishing dot-matrix graphic authenticity

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Experimental program
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Effect test

Embodiment Construction

[0035] like figure 2 As shown, the dot pattern 1 in this embodiment is composed of ink dot groups with microscopic characteristics and ink dot groups with non-microscopic characteristics. The ink dot a2 in the ink dot group with microscopic features includes three irregularly shaped ink dots with gaps and two ink dots composed of superimposed irregular shapes, wherein the top surface of the ink dot a is smooth structure. The ink dot b3 in the ink dot group with no microscopic features is three regularly shaped ink dots, wherein, the shape of the ink dot b is a regular rhombus structure, and its top surface is a smooth structure.

[0036] Under 2400DPI image precision, adjacent ink dot a and ink dot b are both 3*3 pixel in size; under 600DPI image precision, adjacent ink dot a and ink dot b are both 1*1 pixel in size.

[0037] Under 2400DPI image precision, the distance between adjacent ink dot a and ink dot b is 8 pixels, which is the distance from the center of ink dot a t...

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PUM

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Abstract

The invention provides a dot-matrix graphic formed by ink dots with a microscopic characteristic. The dot-matrix graphic formed by the ink dots with the microscopic characteristic comprises an ink dot group with a microscopic characteristic, wherein ink dots a in the ink dot group have an irregular shape, and the top surface of each ink dot a is in a smooth structure or a texture structure. The method for distinguishing the dot-matrix graphic authenticity comprises the following steps: obtaining the image of a current dot-matrix graphic; when the ink dots in the dot-matrix graphic have the microscopic characteristic, analyzing the ink dots into the coded data of the dot-matrix graphic; distinguishing the coded data of the dot-matrix graphic in a database; extracting an information file corresponding to the coded data of the dot-matrix graphic; and outputting the information file. According to the dot-matrix graphic disclosed by the invention, the microscopic characteristics of the ink dot group with the microscopic characteristic and the ink dot group without the microscopic characteristic can be obtained only by an identification device with a microscopic identification effect, and the microscopic characteristics of the ink dots can not be obtained by an identification device without the microscopic identification effect. Therefore, the anti-counterfeit effect of the dot-matrix graphic is better than the anti-counterfeit effect of a conventional dot-matrix graphic.

Description

technical field [0001] The invention relates to an anti-counterfeit mark, especially a dot matrix pattern, especially a dot matrix pattern composed of ink dots with microscopic characteristics and a method for distinguishing its authenticity. Background technique [0002] like figure 1 As shown, the ink dot b3 in the existing dot matrix pattern 1 is generally composed of circular ink dots or square ink dots with the same shape. Although the positions of the ink dots are obtained through related algorithms, better anti-counterfeiting effects cannot be achieved because the ink dots have a single shape. Contents of the invention [0003] In view of the deficiencies in the above problems, the present invention provides a dot matrix pattern composed of ink dots with microscopic features in various forms and better anti-counterfeiting effect and a method for distinguishing its authenticity. [0004] In order to achieve the above object, the present invention provides a dot pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K9/20
Inventor 姚为万宏宇
Owner LEADER TECH BEIJING DIGITAL TECH
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