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Three-dimensional dot matrix projection graphics encoding and decoding method for commodity outer packaging

A codec method and technology of three-dimensional dot matrix, which is applied in the field of three-dimensional dot matrix projection graphics coding and decoding on the outer packaging of commodities, can solve the problems of failing to achieve anti-counterfeiting, counterfeiting, and easy counterfeiting, so as to reduce commodity fleeing and facilitate Management and the effect of improving operational efficiency

Active Publication Date: 2019-02-15
TONGJI UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional anti-counterfeiting methods are easy to forge and be damaged by human beings in commodity circulation, and cannot achieve effective anti-counterfeiting and counterfeiting effects

Method used

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  • Three-dimensional dot matrix projection graphics encoding and decoding method for commodity outer packaging
  • Three-dimensional dot matrix projection graphics encoding and decoding method for commodity outer packaging
  • Three-dimensional dot matrix projection graphics encoding and decoding method for commodity outer packaging

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Embodiment Construction

[0033] This embodiment is applicable to a method for encoding and decoding 3D dot-matrix projection graphics on commodity packaging, and the main steps of the method are as follows:

[0034] 1. Three-dimensional lattice

[0035] This example takes 18-bit binary code as an example.

[0036] This example assumes that the 18-bit code of the original product information is {1,1,0,1,1,0,1,1,1,1,0,0,0,1,1,1,0,1}.

[0037] Divide the product information into three sections, representing three points in the space. The coordinates are: (11,01,10)(11,11,00)(01,11,01), and the decimal number is: point 1 (3,1,2), point 2(3,3,0), point 3(1,3,1)

[0038] Establish a 4×4×4 three-dimensional space, each point can be composed of three pictures such as attached figure 1 Shown is a 4x4 projection view representation.

[0039] 2. Planar lattice

[0040] Put three points two by two in a set of views, as attached figure 2 shown. On the one hand, this is to improve the correlation between in...

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Abstract

The invention provides an anti-interference dot matrix graphic encoding and decoding method for commodity outer packaging, which relates to an outer packaging anti-counterfeiting tracing technology inthe commodity production circulation field. The method stores the commodity information in the form of the coordinates of the middle points of the rectangular coordinate system in a three-dimensionallattice composed of several points in the space, then makes a projection view of the lattice in three directions and combines it into a plane lattice according to certain rules, and finally performsa random transformation on the plane lattice to form a unique unit packaging identity. Because the position of a single point in space can be uniquely determined by two of the three views, the methodhas strong anti-jamming ability without too much redundancy, and greatly improves the information recovery rate under random destruction.

Description

technical field [0001] The invention relates to the field of an anti-counterfeit traceability system for circulating commodity information, and specifically refers to a method for encoding and decoding three-dimensional dot matrix projection graphics for commodity outer packaging. technical background [0002] With the continuous development of the economy and the trend of marketization, the flow of trade is becoming more and more fast and convenient. However, in the process of commodity circulation, problems such as false goods, falsified goods, and anti-counterfeiting are very prominent. In addition, dealers imitate goods and damage product labels, which makes manufacturers suffer huge economic losses. Therefore, how to prevent non-traceability and damage to signs in the process of commodity circulation, and solve the problems of goods in circulation and falsification have become widely concerned by scholars at home and abroad. Traditional anti-counterfeiting methods are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06Q30/00
CPCG06K19/06046G06Q30/0185
Inventor 万国春韩正露
Owner TONGJI UNIV
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