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Barcode decoding method and device

The technology of a decoding method and a decoding device, which is applied in the field of barcode decoding method and device, can solve problems such as blurred images, difficult decoding, inaccurate image focus, etc., and achieve the effect of correct decoding

Inactive Publication Date: 2015-09-02
WUXI AIDINGGE INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For camera modules with lower configuration, such as the camera modules that exist in a large number of low-end mobile phones, because they use fixed-focus lenses, the captured images are often blurred due to inaccurate focus
In this way, this type of barcode image is difficult to decode with traditional barcode decoding technology due to image blur

Method used

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  • Barcode decoding method and device
  • Barcode decoding method and device
  • Barcode decoding method and device

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Embodiment Construction

[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The detailed description of the present invention is mainly presented by programs, steps, logic blocks, processes or other symbolic descriptions, which directly or indirectly simulate the operation of the technical solutions in the present invention. These descriptions and representations herein are used by those skilled in the art to effectively convey the substance of their work to others skilled in the art.

[0034]The term "one embodiment" or "embodiment" here refers to that specific features, structures or characteristics related to the embodiment can be included in at least one implementation of the present invention. The appearances of "in one embodiment" in various places in this specification do not necessarily all...

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Abstract

The invention discloses a bar code decoding method and device. The bar code decoding method comprises estimating a fuzzy degree of an image; selecting a corresponding standard feature vector set from a plurality of standard feature vector sets according to the fuzzy degree, wherein each standard feature vector set corresponds to a fuzzy degree range and comprises a plurality of standard feature vectors; extracting test feature vectors corresponding to all bar code data characters of the bar code from the image and decoding to obtain a bar code value of the bar code by utilizing the test feature vectors corresponding to all bar code data characters of the bar code and the selected standard feature vector set; accordingly the different standard feature vector sets are selected to decode according to the different fuzzy degree ranges and the correct decoding of the bar code can be still achieved under the fuzzy image condition.

Description

【Technical field】 [0001] The invention relates to the field of linear barcode identification, in particular to a barcode decoding method and device. 【Background technique】 [0002] A linear barcode is also often called a one-dimensional barcode (1D barcode), which is a graphic identifier for expressing a set of information by arranging a number of black bars and spaces of varying widths according to certain coding rules. At present, it is widely used in industrial and civil fields. Common linear barcodes include Universal Product Code (UPC code for short), European Article Number (EAN code for short), Japanese Article Number (JAN code for short), Code 25, Code 39, Code 128 and so on. [0003] Commonly used barcode scanning equipment is usually composed of light source (such as laser), optical lens, photosensitive device (such as CCD, CMOS, etc.), decoding logic circuit and I / O interface and other components. To put it simply, the light source projects light onto the barco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10
Inventor 陈凌
Owner WUXI AIDINGGE INFORMATION TECH
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