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Detection method and device based on dot-like coding

A detection method and detection device technology, applied in image enhancement, equipment, digital ink recognition, etc., can solve the problems of logo detection errors and low manual detection efficiency, achieve high anti-interference, improve efficiency and accuracy, and improve detection efficiency effect

Active Publication Date: 2022-08-02
GUANGXI NORMAL UNIV
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Problems solved by technology

[0004] In order to solve the problems of low manual detection efficiency and prone to label detection errors, the embodiment of the present invention provides a detection method and device based on dot-like inkjet coding

Method used

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  • Detection method and device based on dot-like coding
  • Detection method and device based on dot-like coding
  • Detection method and device based on dot-like coding

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Embodiment Construction

[0043] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0044] see figure 1 , for the convenience of understanding, the present invention will explain the dot-shaped inkjet code here. It can be understood that inkjet printing refers to the process of printing logos (production date, shelf life, batch number, corporate logo, etc.) on an item with a inkjet printer. The ink dots are formed by fracture, and then the ink dots are deflected by high pressure and scanned on the surface of the article to form dot-shaped characters. Different dot-shaped characters can be used to form different printing marks, such as figure 1 The "2020.02.0...

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Abstract

The invention relates to the technical field of spray code detection, in particular to a detection method and device based on dot-shaped spray code. During detection, firstly obtain a dot-shaped inkjet image, extract the dot-shaped characters to be checked in the dot-shaped inkjet image, and obtain the difference between each proofing point in the proofing grid formed by each ink dot in the dot-shaped character to be checked and the standard dot-shaped character. Offset, when any offset is greater than the set offset threshold, it is judged that there is a coding error in the dot-shaped character to be checked. According to the offset to determine whether there is a coding error in the dotted character to be checked, it can automatically detect the dotted coding without manual detection, which further reduces the cost of dotted coding detection, improves the detection efficiency, and has higher efficiency. practicality. At the same time, by detecting each ink dot in the dotted character, the detection method is simple, and the training process of a large number of samples is omitted, which has high practicability and promotion value.

Description

【Technical field】 [0001] The invention relates to the technical field of spray code detection, in particular to a detection method and device based on dot-shaped spray code. 【Background technique】 [0002] With the development of society, the requirements for product quality are getting higher and higher, especially the dot-like markings on the products. These dot-like markings often carry important information of these products, such as the production date of the product, the product batch number, product origin, etc. When coding and marking these products, it is inevitable that there will be missing markings or marking defects. If these products with marking defects enter the market, it will cause adverse effects. [0003] The traditional detection method of dot-like coding marks usually adopts manual detection of dot-like coding marks on products. However, the efficiency of manual detection is low, and the phenomenon of mark detection errors is prone to occur. [Content...

Claims

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Application Information

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IPC IPC(8): G06V30/32G06V10/44G06V10/30G06V10/34G06T5/30
CPCG06T5/30
Inventor 莫家玲李帆胡维平刘雨戈劳昶皓
Owner GUANGXI NORMAL UNIV
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