Random anti-counterfeit mark feature extraction and identification method and device and server

An anti-counterfeiting mark and feature extraction technology, applied in the field of anti-counterfeiting, can solve the problem of not involving graphic locators and the like

Inactive Publication Date: 2018-12-18
石立公
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the above deals with the aspect of random anti-counterfeiting markings with graphic locators

Method used

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  • Random anti-counterfeit mark feature extraction and identification method and device and server
  • Random anti-counterfeit mark feature extraction and identification method and device and server
  • Random anti-counterfeit mark feature extraction and identification method and device and server

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0167] figure 1 It is a schematic diagram of the structure of a concentric circular ring graphic locator according to an embodiment of the present invention figure 1 ,Such as figure 1 As shown, it includes a central circle 1, a circle 1, and a circle two 3.

[0168] The centers of center circle 1, circle 1, 2, circle 2 3 overlap, and the radii expand in sequence;

[0169] The width of ring one 2 is twice the radius of center circle 1, and the width of ring two 3 is twice the radius of center circle 1. The ring width of any one of the rings is an integer multiple of the radius of the central circle, or one part of an integer; when multiple rings are adjacent, layer by layer; preferably, the width of the ring is 1 radius of the central circle 2 times and 1 times alternate from the inner layer to the outer layer.

[0170] The colors of two adjacent center circles 1 and / or rings are different; when there are multiple center circles 1 and rings, the colors of each center circle 1 or r...

Embodiment approach 2

[0175] figure 2 It is a schematic diagram of the structure of a concentric circular ring graphic locator in another embodiment of the present invention figure 2 ,Such as figure 2 As shown, it includes central circle 1, circle one 2, circle two 3, circle three 4.

[0176] The difference between the second embodiment and the first embodiment is that the center circle 1 of the second embodiment is black, and the second embodiment has 3 rings on the outside of the center circle 1 of the second embodiment, the width of the second ring 2 and the second ring 3 different.

[0177] Such as figure 2 As shown, it contains 3 layers of rings and a center circle, starting from the outer black ring, passing through the center of the center circle, and reaching the line segment on the other side of the outer black ring. The colors that go through are: black, white , Black, white, black, white, black, and the ratio of the number of pixels in each segment is 1:2:1:2:1:2:1.

Embodiment approach 3

[0179] image 3 It is a schematic structural diagram of a random anti-counterfeiting mark with a graphic locator according to another embodiment of the present invention figure 1 ,Such as image 3 As shown, it includes a random anti-counterfeiting mark main body 21, a concentric circular ring graphic locator 22, a concentric circular circular graphic locator two 23, a concentric circular ring graphic locator 24, and a random anti-counterfeiting mark 29.

[0180] image 3 In, the inside of the dashed box is divided into a random anti-counterfeiting mark body 21.

[0181] On the random anti-counterfeiting mark body 21, a set of random anti-counterfeiting mark points 29 are randomly distributed; the number, position, and size of the random anti-counterfeiting mark points 29 are random. It should be noted that the random anti-counterfeiting mark point 29 is located within the range of the random anti-counterfeiting mark body 21; generally, it does not overlap with the graphic locator, ...

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Abstract

A random anti-counterfeit mark feature extraction and identification method and device and a server are provided. The image feature extraction method comprises the following processing steps: S51. dividing a random anti-counterfeit mark into M rows and N columns; S52. calculating eigenvalues of each divided image block. The image feature comparison method comprises the following processing steps:S61. obtaining image feature information of an identification sample; S62. obtaining image characteristic information of a standard sample of a random anti-counterfeit mark corresponding to the storedunique identification code; S63. obtaining the characteristic difference value; S64. if the feature difference value is less than a predetermined feature difference threshold value, considering the two to be consistent, otherwise, considering the two to be inconsistent. The method, the device and the server provided by the invention can automatically extract image features of random anti-counterfeit marks with graphics locators, and can save the extracted image features to carry out automatic identification with the extracted image features.

Description

Technical field [0001] The present invention relates to the field of anti-counterfeiting technology, in particular to a method, device and server for extracting and identifying features of random anti-counterfeiting marks. Background technique [0002] The existing Chinese patent 201520198228.6 proposes an anti-counterfeiting marking device that can produce random anti-counterfeiting marks. The existing Chinese patent 201520654356.7 proposes a random marking head without a rigid inner core, which can be used with a random anti-counterfeiting mark making device for making random anti-counterfeiting marks. Existing Chinese patents 2015201975795, 2015201982286, 2015202001174, 2015205590062, 2015210834029, 2015211359747, 201521137990X respectively propose devices or components for making random anti-counterfeiting marks. None of the above relates to random anti-counterfeiting marks with graphic locators. [0003] The two-dimensional code widely used now has a nested box-like graphic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K7/14
CPCG06K19/06037G06K7/1417G06K7/1443G06K19/06131
Inventor 石立公
Owner 石立公
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