A reading and matching method for blocking two-dimensional codes and its application

A matching method and two-dimensional code technology, applied in data processing applications, induction record carriers, electromagnetic radiation induction, etc., can solve the problems of affecting the appearance of product packaging and increasing printing costs, and achieve intelligent management and high recognition accuracy Effect

Active Publication Date: 2022-05-24
CHINA TOBACCO GUANGXI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If two or more QR codes are set on the product according to the purpose, it will increase the printing cost and affect the appearance of the product packaging

Method used

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  • A reading and matching method for blocking two-dimensional codes and its application
  • A reading and matching method for blocking two-dimensional codes and its application
  • A reading and matching method for blocking two-dimensional codes and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0143] When the occlusion area is elliptical, the computer vision method is used to Figure 18 to determine the marketing code area and the blocking area on the marketing code, Figure 18The detected marketing code area is the area enclosed by rectangle 1. The outline coordinates of rectangle 1 start from the upper left vertex, and are (39,39), (371,39), (371,371), (39,371) in the clockwise direction. . Figure 18 The detected occlusion area is the area enclosed by rectangle 2. The coordinate values ​​of the outline of rectangle 2 start from the upper left vertex, clockwise, respectively (81,149), (324,149), (324,268), (81,268). The size of a single symbol is: 10×10 (pixels).

[0144] It can be seen from the above:

[0145] The coordinates of the upper left vertex of the marketing code (x lt 1 ,y lt 1 ) = (39,39);

[0146] The coordinates of the lower right vertex of the marketing code (x rb 1 ,y rb 1 ) = (371, 371);

[0147] The coordinates of the upper left vert...

Embodiment 3

[0160] When the occlusion area is an irregular pattern, the computer vision method is used to Figure 19 to determine the marketing code area and the blocking area on the marketing code, Figure 19 The detected marketing code area is the area enclosed by rectangle 1. The outline coordinates of rectangle 1 start from the upper left vertex, and are (39,39), (371,39), (371,371), (39,371) in the clockwise direction. . Figure 19 The detected occlusion area is the area enclosed by rectangle 2. The outline coordinate values ​​of rectangle 2 start from the upper left vertex, clockwise, respectively (101, 142), (277, 142), (277, 269), (101, 269). The size of a single symbol is: 10×10 (pixels).

[0161] It can be seen from the above:

[0162] The coordinates of the upper left vertex of the marketing code (x lt 1 ,y lt 1 ) = (39,39);

[0163] The coordinates of the lower right vertex of the marketing code (x rb 1 ,y rb 1 ) = (371, 371);

[0164] The coordinates of the upper...

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Abstract

The present invention relates to the technical field of application of two-dimensional codes, in particular to a method for reading and matching covered two-dimensional codes and its application. The present invention converts the covered two-dimensional codes into binary matrices and combines them with the complete two-dimensional codes in the database. The binary matrix performs Hamming distance matching, and then obtains the corresponding data information of the blocked two-dimensional code. In the present invention, by setting a shielding area on the two-dimensional code, one code can be used for multiple purposes. The two-dimensional code before shielding is printed on the small commodity packaging box as a marketing code, and then the shielding area is set on the marketing code, which can be used in the whole production process. As a circulation code in the process, such a two-dimensional code can be used to realize the code and check of the circulation link, and provide solutions for product circulation and material tracking, traceability, anti-channeling, quality control and other management, and can also realize marketing The link has a code-scannable management mode, which provides activity content settings for product sales and collects customer data.

Description

technical field [0001] The invention relates to the technical field of two-dimensional codes, in particular to a recognition and matching method for blocking two-dimensional codes and applications thereof. Background technique [0002] At present, with the country's proposal of the "Internet +" strategy, the Internet will change the production methods of many traditional manufacturing industries and directly become an important part of the industrial ecological chain. In particular, the field of industrial intelligence deserves the most attention. It will not only be limited to the manufacturing link, but the intelligence of all links in the entire ecological chain, including production, logistics, consumption and other links. The Internet and information technology have a huge impact on the reorganization of these elements. of available space. [0003] In the process of product circulation, due to various environmental and human factors, the QR code is blocked by stains an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/14G06Q30/00
CPCG06K7/1417G06K7/1439G06Q30/018
Inventor 陈浩刘雁兵黄飞杰周肇峰朱皓然韦泰丞张欣
Owner CHINA TOBACCO GUANGXI IND
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