Method for quick Data Matrix two-dimensional barcode identifying under simple condition background

Abstract

The invention provides a method for quick Data Matrix two-dimensional barcode identifying under simple condition background. The method meets the demand for practical application of a barcode in industrial field, and differs from a traditional detecting method for Data Matrix positioning graphics, that is, expressing the L-shaped boundary of a barcode 2-D by a function with the distance of 1-D as the angle, thereby avoiding related problems of line detection; calculates a linear equation of the boundary and a rotation angle by the boundary function according to the boundary characteristic of the Data Matrix barcode, thereby avoiding the problems of large calculation quantity and time complexity in the traditional method; weakens the effect of fractured straight lines on barcode boundary positioning using a circle searching method, thereby solving the problems of inaccurate and incomplete barcode positioning; and determines an intersection of dashed-line sides by a simultaneous dashed-line side linear equation to achieve the purpose of accurate positioning of a barcode region. The method for quick Data Matrix two-dimensional barcode identifying under simple condition background, differing from the traditional barcode positioning idea, accurately locates the barcode only according tomarked curves of the boundary, thereby not only having small calculation quantity, but also improving the recognition efficiency of Data Matrix.

Description

technical field [0001] The present invention relates to a quick recognition method of a two-dimensional barcode, in particular to a quick recognition method of a Data Matrix two-dimensional barcode under the background of a simple working condition. The method for taking a picture of a barcode item and quickly locating the position of the barcode in the picture and identifying the content of the barcode belongs to the technical field of Data Matrix two-dimensional barcode recognition. Background technique [0002] With the deepening of barcode applications, barcode recognition equipment is also developing towards miniaturization, safety and reliability, multi-function, economical application, long-distance, software and hardware, and many new types of equipment have emerged. At present, the barcode acquisition terminal is developing towards the integration of various communication technologies and network technology, portability and multi-functional integration; the barcode ...

AI Technical Summary

Problems solved by technology

[0011] (2) The core technology of commonly used two-dimensional barcode reading is not fully mastered

[0012] (3) Two-dimensional barcode reading equipment is relatively expensive

Although some domestic companies also design and generate two-dimensional barcode reading equipment, most of their products are based on the secondary development of Sybol products in the United States, and the price is relatively high; the self-developed reading equipment is very effective in reading. Difficult to achieve satisfactory results

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