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Circular view finding graphic quick response code and generation and interpretation methods thereof

A technology for finding images and two-dimensional codes, applied in the field of two-dimensional codes, can solve the problems of inability to quickly generate and decode two-dimensional codes, weak anti-ambiguity of two-dimensional codes, and long time for generating and decoding, etc. To achieve the effect of shortening the image-finding time, good anti-blur, and simple structure

Active Publication Date: 2018-07-06
FOSHAN SHUNDE SUN YAT SEN UNIV RES INST +2
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Problems solved by technology

Most of the existing two-dimensional code image-finding graphics are composed of rectangular modules. Some image-finding graphics are circular, but their information matrix is ​​a small rectangle. Coding, the method is complicated, the error correction performance is not high, it takes a long time to generate and decode, and the QR code cannot be quickly generated and decoded

Method used

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  • Circular view finding graphic quick response code and generation and interpretation methods thereof
  • Circular view finding graphic quick response code and generation and interpretation methods thereof
  • Circular view finding graphic quick response code and generation and interpretation methods thereof

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Embodiment Construction

[0031] figure 1 It is a two-dimensional code with a circular image-seeking pattern. The two-dimensional code includes an image-finding pattern composed of three large black circles and a matrix composed of small black circles. The centers of the three large black circles form an isosceles right-angled triangle.

[0032] The specific diameter ratio of the large black circle and the small black circle is 4:1. The matrix is ​​the information point of the two-dimensional code. The position with a small black circle represents 1, and the position without a small black circle represents 0. The distance between adjacent information points is 1:1. Trademarks of any shape can be embedded in the big black circle, such as figure 2 Shown is the trademark in the shape of a five-pointed star embedded in a large black circle.

[0033] A method for generating a two-dimensional code of a circular image-finding graphic, the steps of which are as follows:

[0034] S1: Convert the data stream...

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Abstract

The invention discloses a circular view finding graphic quick response code and generation and interpretation methods thereof. The quick response code comprises a view finding graph composed of threebig black circles and a matrix composed of small black circles, and the circular centers of three big black circles form an isosceles right triangle. The generation method of the quick response code comprises the steps that a data stream is converted into a byte stream, coding is carried out, the size of the quick response code is determined, the view finding graph is arranged and converted into amatrix, the matrix is arranged, and a quick response code image is generated. The interpretation method of the quick response code comprises the steps that the quick response code image is scanned and processed, the view finding graph is searched for, the quick response code is corrected and converted into a 0 / 1 matrix, the matrix is decoded and interpreted into data information, and interpretation is completed. Both the view finding graph and the matrix are circular, the structure is simple, an anti-fuzziness performance is high, identification is easy, a Hough transformation algorithm can be used for detection, and the decoding speed is improved. LDPC in intermediate and short code lengths are used for coding, and the error correction performance is higher than that of an RS algorithm.

Description

[0001] The invention relates to a two-dimensional code, in particular to a two-dimensional code with a circular image-finding pattern and a method for generating and interpreting the two-dimensional code. Background technique [0002] Since the popularity of the QR code, it has always been the focus of public attention, both in terms of its convenience and safety. Most of the existing two-dimensional code image-finding graphics are composed of rectangular modules. Some image-finding graphics are circular, but their information matrix is ​​a small rectangle. Encoding, the method is complicated, the error correction performance is not high, and it takes a long time to generate and decode, so it cannot quickly generate and decode the QR code. Contents of the invention [0003] In order to solve the problems of the prior art, the object of the present invention is to provide a method for generating and interpreting a two-dimensional code of a circular image-finding pattern, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K7/14
CPCG06K7/1421G06K19/06046
Inventor 周达敏陈荣军嵇志辉谢舜道李小敏朱雄泳
Owner FOSHAN SHUNDE SUN YAT SEN UNIV RES INST
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