Identification method of two-dimensional code and apparatus thereof

A technology of two-dimensional codes and binary images, applied in the field of identification methods and devices of two-dimensional codes

Active Publication Date: 2016-10-05
BEIJING D9ING INST OF INFORMATION ENG CO LTD
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  • Abstract
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Problems solved by technology

Not only can solve the problems in the existing technology, but also has stronger anti-fouling

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  • Identification method of two-dimensional code and apparatus thereof
  • Identification method of two-dimensional code and apparatus thereof
  • Identification method of two-dimensional code and apparatus thereof

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[0031] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0032] figure 1 It is a schematic flow chart of the two-dimensional code recognition method of the embodiment of the present application. The specific process of the two-dimensional code recognition method of the embodiment of the present application includes: step S110, collecting two-dimensional code image information and preprocessing the image; step S120, Locate the border and apex of the two-dimensional...

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Abstract

The invention discloses a method and device for identifying a two-dimensional code. The method includes that the two-dimensional code includes a data coding area, a format information area, a correction pattern, and surrounds the data coding area, the format information area and the The frame of the correction pattern is described, and the specific steps are to collect the two-dimensional code image information and preprocess the image; locate the frame and apex of the two-dimensional code by searching for a long straight line segment; locate the format information area according to the frame and apex of the two-dimensional code and Decoding format information; locating correction patterns and performing image correction; decoding error correction codewords and data codewords. The recognition method can quickly locate and obtain the matrix information of the two-dimensional code, and has the advantages of fast recognition speed, strong anti-fouling and anti-distortion capabilities, and a wide range of applications.

Description

technical field [0001] The invention relates to the field of information recording and identification, in particular to a two-dimensional code identification method and device. Background technique [0002] The one-dimensional code expresses information through bars and spaces arranged in the horizontal direction, but does not express information in the vertical direction, and its capacity is very limited. Two-dimensional codes can express information in both horizontal and vertical directions, so compared with one-dimensional codes, they can express more information in a smaller area. At the same time, by applying an error correction algorithm to the two-dimensional code, the reliability of the two-dimensional code is also greatly increased. Two-dimensional codes can be divided into layered two-dimensional codes and matrix two-dimensional codes. [0003] Layered two-dimensional codes can be regarded as stacked by multiple lines of one-dimensional codes. The common ones ar...

Claims

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Application Information

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IPC IPC(8): G06K7/10
Inventor 于学东王勇韦俊康林斌杨永健
Owner BEIJING D9ING INST OF INFORMATION ENG CO LTD
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