A method and device for identifying a two-dimensional code

A recognition method and two-dimensional code technology, applied in the field of information recording and recognition, to achieve the effects of fast recognition speed, strong anti-distortion ability, and wide application range

Active Publication Date: 2021-10-08
BEIJING D9ING INST OF INFORMATION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Not only can solve the problems in the existing technology, but also has stronger anti-fouling performance, but there is no effective identification method to read this two-dimensional code

Method used

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  • A method and device for identifying a two-dimensional code
  • A method and device for identifying a two-dimensional code
  • A method and device for identifying a two-dimensional code

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Embodiment Construction

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples thereby using techniques for application techniques to solve technical problems, and achieve technical effects can fully understand and implement. It should be noted that the various embodiments in the present invention and the respective features of the present invention can be bonded to each other as long as there is no conflict, and each of the features of the present invention can be combined with each other.

[0033] figure 1 Schematic flow chart of the present application two-dimensional code recognition method according to the embodiment, the specific procedure of two-dimensional code recognition method of application of the present embodiment comprises: step S110, the acquired image information and the two-dimensional code image is preprocessed; step S120, the Search through the border and the long straight segment apex positioned two-...

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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 present invention relates to an information recording and recognition, and more particularly relates to a two-dimensional code recognition method and apparatus. Background technique [0002] One-dimensional code information is expressed by arranging in the horizontal direction of the strip, empty, information is not expressed in the vertical direction, its capacity is very limited. Two-dimensional code information expressed simultaneously in the horizontal and vertical directions, and therefore, more information can be expressed in a smaller area compared to the one-dimensional code. Meanwhile, by applying the correction algorithm on the two-dimensional code, so that the reliability of the two-dimensional code is also greatly increased. Layer can be divided into two-dimensional code in row two-dimensional code and a two-dimensional matrix code types. [0003] Layer in row two-dimensional code can be seen by the accumulation of multiple rows of one-dimen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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