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A barcode recognition method, device and equipment

A recognition method and barcode technology, applied in the field of image processing, can solve problems such as fuzzy noise, inability to confirm the correctness of the result, inaccuracy, etc., and achieve the effect of accurate recognition

Active Publication Date: 2019-05-07
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the same disadvantage as the threshold binarization method: it is sensitive to blur and noise
This method loses the information of the barcode, and because the number string does not contain a check digit, the correctness of the obtained result cannot be confirmed
[0013] The main challenges of image-based barcode recognition tasks are due to image blur (e.g. due to inaccurate focus) and non-uniform illumination.
In the prior art, there is no method for accurately identifying barcodes in fuzzy images

Method used

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  • A barcode recognition method, device and equipment
  • A barcode recognition method, device and equipment
  • A barcode recognition method, device and equipment

Examples

Experimental program
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no. 1 example

[0045] Such as figure 1 As shown, the embodiment of the present invention provides a kind of identification method of bar code, comprises:

[0046] Step 11, obtaining an input image with a barcode; wherein, the image may be a blurred image with a barcode;

[0047] Step 12, obtaining the first value generated by the barcode decoding process of the barcode area in the image and the second value generated by the number recognition process of the number area in the image; wherein the first value represents the barcode of the barcode area The difference between the decoded simulation result and the barcode decoding result of the barcode area, the second value represents the difference between the number recognition simulation result of the number area and the number recognition result of the number area;

[0048] Step 13, obtaining the output result corresponding to the minimum sum of the first value and the second value, and outputting it.

[0049] In this embodiment of the pres...

no. 2 example

[0059] Such as Figure 7 As shown, the embodiment of the present invention provides a kind of identification method of bar code, comprises:

[0060] Step 21, acquiring an input image with a barcode; wherein, the image may be a blurred image with a barcode;

[0061] Step 22, obtaining the first positioning parameter information of the barcode area in the image;

[0062] Step 23, according to the first positioning parameter information, obtain the first value generated in the barcode decoding process; wherein, the first value represents the difference between the simulation result of the barcode decoding in the barcode area and the barcode decoding result in the barcode area the difference between

[0063] Step 24, acquiring a second value generated during the digit recognition process of the digit region in the image; wherein, the second value represents the difference between the digit recognition simulation result of the digit region and the digit recognition result of the ...

no. 3 example

[0079] Such as Figure 10 As shown, the embodiment of the present invention provides a kind of identification method of bar code, comprises:

[0080] Step 101, acquiring an input image with a barcode; wherein, the image may be a blurred image with a barcode;

[0081] Step 102, acquiring the first value generated during the barcode decoding process of the barcode area in the image; wherein, the first value represents the difference between the barcode decoding of the barcode area and the simulation result of the barcode decoding result of the barcode area difference;

[0082] Step 103, obtaining the second positioning parameter information of the digital area of ​​the barcode in the image;

[0083] Step 104, according to the second positioning parameter information, obtain the second value generated by the digit recognition process; wherein, the second value represents the difference between the digit recognition simulation result of the digit region and the digit recognition...

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Abstract

The invention provides a barcode identification method, device and equipment, relates to the field of image processing, and aims at solving the problems in the prior art that the barcode in a blurred image having the barcode cannot be accurately identified. The method comprises the steps that an inputted image having the barcode is acquired; a first value generated in the barcode decoding process of the barcode area of the image and a second value generated in the digital identification process of the digital area of the image are acquired; and an output result corresponding to the minimum sum of the first value and the second value is acquired and outputted. According to the scheme, the barcode in the blurred image can be accurately identified.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a barcode recognition method, device and equipment. Background technique [0002] Barcodes are a common technology for enabling machine-readable data. At present, most barcodes are read by laser scanning, which has the advantages of low price and stability. However, in some special scenarios, the laser scanning method does not work effectively: such as reading barcodes in any direction or reading multiple barcodes at the same time. Laser scanning cannot achieve good performance in some difficult scenes, such as when the illumination changes strongly. [0003] Image-based barcode decoding technology can effectively solve the problems of laser scanning reading method to some extent. It can read any number of barcodes in any arrangement. It can greatly improve efficiency in logistics systems, commodity verification and other occasions. [0004] Image-based one-dimensio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10
Inventor 庞勃范圣印王鑫王千王刚
Owner RICOH KK