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Bar code decoding method based on code word combination

A decoding method and codeword technology, applied in the field of barcode decoding based on codeword combination, can solve problems such as decoding errors

Inactive Publication Date: 2010-09-15
NEWLAND DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the problem existing in the prior art that the image is distorted due to lack of light or stains during shooting, and the generation of empty codes will cause decoding errors, the present invention provides a barcode decoding method based on code word combination, which can ensure decoding The process goes smoothly and is not affected by empty codes

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  • Bar code decoding method based on code word combination
  • Bar code decoding method based on code word combination
  • Bar code decoding method based on code word combination

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Embodiment Construction

[0018] Regarding the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings, which are provided for reference and illustration only, and are not intended to limit the present invention.

[0019] figure 1 A flowchart showing a preferred embodiment of the barcode decoding method based on codeword combination of the present invention. Such as figure 1 As shown, the process starts at step 101.

[0020] In step 102, the image may be captured by means of an imaging device to obtain a first barcode image and a second barcode image, wherein the first barcode image and the second barcode image are obtained by capturing the same barcode.

[0021] In step 103, the first barcode image is scanned to obtain the first codeword combination.

[0022] In step 104, the second barcode image is scanned to obtain a second codeword combination.

[0023] In step 105, search for empty codes that appear in the first code...

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Abstract

The invention provides a bar code decoding method based on code word combination. The bar code decoding method comprises the following steps of: a, obtaining a first bar code image and a second bar code image corresponding to the same bar code; b, respectively extracting code words on the first bar code image and the second bar code image so as to obtain a first code word combination and a second code word combination; and c, combining the first code word combination and the second code word combination to form a target code word combination, and correcting error correction on the target code word combination. By providing the method, the invention can ensure that decoding process is affected by vacant codes.

Description

【Technical field】 [0001] The invention relates to the field of barcodes, in particular to a barcode decoding method based on code word combination. 【Background technique】 [0002] Bar code technology is an emerging technology developed on the basis of computer technology and information technology that integrates coding, printing, identification, data collection and processing. Barcode technology is widely used in business, library management, warehousing, post and telecommunications, transportation and industrial control due to its advantages of fast, accurate, reliable and low cost, and is bound to play an important role in the emerging "Internet of Things" applications. role. [0003] Currently widely used barcodes include one-dimensional barcodes and two-dimensional barcodes. A one-dimensional barcode, also known as a linear barcode, is composed of multiple "bar" and "space" units arranged in parallel, and the barcode information is expressed by the different widths an...

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Application Information

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IPC IPC(8): G06K7/10
Inventor 陈文传邱有森吴文彬
Owner NEWLAND DIGITAL TECH CO LTD