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A two-dimensional code positioning method, module and computer-readable storage medium

A positioning method and two-dimensional code technology, applied in the field of two-dimensional code positioning method, module and computer-readable storage medium

Active Publication Date: 2021-04-27
QINGDAO ITECHENE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The code reader of this solution requires the user to place the barcode in the obvious area where the barcode is collected in the image, so that the barcode fills the image collection area as much as possible. The background must be very clean, the barcode is clear, and the contrast is strong. Not suitable for coping with complex and changing demands in industry

Method used

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  • A two-dimensional code positioning method, module and computer-readable storage medium
  • A two-dimensional code positioning method, module and computer-readable storage medium
  • A two-dimensional code positioning method, module and computer-readable storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0061] like figure 1 Shown is a schematic flow chart of the two-dimensional code positioning method of this embodiment, which can be used for the identification of DM (DataMatrix) codes in images, figure 2 In order to realize the two-dimensional code positioning module of the method, in the module, the original image preprocessing unit 10, the barcode candidate area positioning unit 20, the candidate sub-image extraction unit 30, the barcode candidate edge acquisition unit 40, the target barcode positioning unit 50, the target barcode The extracting units 60 are connected in sequence and are used to realize the processes of St1, St2, St3, St4, St5 and St6 respectively.

[0062] The two-dimensional code positioning method of the present embodiment includes the following processes:

[0063] St1, the original image preprocessing process:

[0064] St1.1, receiving the original image, such as image 3 As shown in the image, it is judged whether the original image needs to be op...

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Abstract

The present application provides a two-dimensional code positioning method, module and computer-readable storage medium. The method includes the original image preprocessing process, the barcode candidate area positioning process, the candidate sub-image extraction process, the barcode candidate edge acquisition process, and the target barcode positioning process. , The target barcode extraction process. Each process can be realized by the original image preprocessing unit, barcode candidate area positioning unit, candidate sub-image extraction unit, barcode candidate edge acquisition unit, target barcode positioning unit, and target barcode extraction unit in the module. The computer-readable storage medium includes a program, which can be executed by a processor to implement the above method. By using the method and module of the present application, fast and accurate positioning of the two-dimensional code image in a large field of view and complex background image can be realized.

Description

technical field [0001] The invention relates to the field of two-dimensional code identification, in particular to a two-dimensional code positioning method, module and computer-readable storage medium. Background technique [0002] In the prior art, the barcode reader can emit a beam of light from the laser diode of the barcode reader based on the principle of laser reflection, and irradiate it onto a rotating prism or a mirror that swings back and forth. The reflected light passes through the reading window and shines on the On the surface of the barcode, the light passes through the bars and spaces on the barcode, and returns to the code reader after reflection. It is collected and focused by a mirror, and converted into an electrical signal through a photoelectric converter. The signal will pass through the code reader or the decoding software on the terminal. Decoding; the barcode reader of this solution is only suitable for the situation where the barcode reader has be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/14
CPCG06K7/1417G06K7/1443
Inventor 李东郭浩铭谢延欣
Owner QINGDAO ITECHENE TECH CO LTD