Novel QR code coding, positioning and identifying method

Abstract

The invention discloses a novel QR code coding, positioning and identifying method. Mark posts are added into a 2D matrix to achieve fixed coding information, on the basis of QR code symbols of an n*n matrix, a column of all 0 / 1 is added to the left side of each column of the matrix, coding is carried out by transforming the n*n matrix into an n*2n matrix and the phenomenon that printing cannot be carried out due to the fact that a QR code is incoherent during hollow-out printing, and when the QR code is positioned and identified later, the n*2n matrix is transformed into the n*n matrix; and thus, the QR code can be identified conveniently, the incoherent phenomenon during hollow-out printing is avoided, and the problem that the whole QR code area cannot be represented completely is solved. The method is suitable for printing and identified the hollow-out printed QR code.

Description

technical field [0001] The invention belongs to the fields of information storage and 3D printing, and relates to a novel encoding, positioning and identification method of a two-dimensional code. Background technique [0002] Data Matrix is ​​a two-dimensional code widely used in the field of international manufacturing. It was invented by the International Data Corporation of the United States in 1989. It is widely used in anti-counterfeiting and overall identification of commodities. It is a code that can be directly marked on a solid surface. The code can be as Ordinary barcodes are automatically read by corresponding scanning devices, and are very popular in the manufacturing industry. At present, Data Matrix is ​​widely used in product identification, anti-counterfeiting, quality tracking, automatic storage, logistics management and control and other systems. Data Matrix adopts complex error correction code technology, which makes the code have super anti-pollution ab...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a new type of two-dimensional code coding, positioning and identification method, adding benchmarks in the middle of the two-dimensional matrix to achieve fixed coding information, using the basis of two-dimensional code symbols in n*n matrix Above, add a column of all 0 or all 1 values ​​on the left side of each column of the matrix, and convert the n*n matrix into an n*2n matrix for encoding to prevent the two-dimensional code from being incoherent during hollow printing. The phenomenon that printing cannot be performed, when the two-dimensional code is positioned and recognized later, it is converted into an n*n matrix, which can not only facilitate the recognition of the two-dimensional code, but also solve the incoherence that occurs during hollow printing. The problem that the entire QR code area cannot be fully represented

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