Identification method for stacked two-dimensional code with a plurality of characters and numbers in complicated background

Abstract

The invention provides an anti-counterfeit identification method based on hybrid stacking of a plurality of characters and numbers of a two-dimensional code. The method comprises the steps of calculating a communicating threshold, extracting a position detecting pattern area according to gravity center detection and area ratio, obtaining four corner points of the two-dimensional code through a line segment with longest distance among three position detecting patterns, eliminating influence of two-dimensional deformation and photographing angle to corner point detection of the two-dimensional code, respectively calculating an innermost square area, a middle square area and an outer square area of the position detecting pattern according to the center of the position detecting pattern by means of three times of area increase, calculating the corner points of the outer square area of the position detecting pattern by means of approximation of two sets of lines, calculating the edge key points of four boundaries of the two-dimensional code by means of a bridging method, calculating the length of the curve between the key points of the deformed two-dimensional code by means of integration, and calculating the corresponding coordinates of the key points on the deformed two-dimensional code on the corrected image through a telescoping ratio. The anti-counterfeit identification methodis a new anti-counterfeit identification method and effectively protects related knowledge property and economic benefit of legal manufacturers.

Description

Technical field [0001] The invention relates to an anti-counterfeiting identification method for superimposed two-dimensional codes with a mixture of multiple characters and numbers in a complex background. Background technique [0002] The application and promotion of two-dimensional code technical standards worldwide, and its popularization and application of technical standards have brought considerable economic benefits to enterprises. The combination of mobile phones and QR codes further expands the application value of QR codes and promotes industry integration. As the market, industry chain, and business model continue to mature, mobile phone QR codes will bring more opportunities to communications, media and other traditional industries. Mobile phone QR codes will enter the lives of more people in the future. The development of mobile phone QR codes will bring a wealth of applications. According to Noda Consulting's classification, mobile phone QR codes can be subdivided...

AI Technical Summary

Problems solved by technology

With the continuous update and development of technology, the above two types of anti-counterfeiting identification methods cannot well prevent the anti-counterfeiting code from being counterfeited or imitated

It has caused confusion to the anti-counterfeiting work of commodities and brought a lot of economic losses to the production enterprises

At the same time, the relevant intellectual property rights of enterprises cannot be effectively protected.

The emergence of a large number of counterfeit and imitated anti-counterfeiting codes will inevitably lead to the proliferation of counterfeit goods in the consumer market and bring a great impact on the normal commodity sales market

Disrupt the normal order of merchandise sales

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