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A character defect detection method and device

A defect detection and character technology, applied in the field of images, can solve the problems of high labor cost and low efficiency in detection, and achieve the effect of saving labor costs

Active Publication Date: 2021-10-29
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most character defect detection is still done manually, with low efficiency and high labor cost.

Method used

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  • A character defect detection method and device
  • A character defect detection method and device
  • A character defect detection method and device

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Embodiment Construction

[0029] Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood, and the scope of the present application can be fully conveyed to those skilled in the art.

[0030] figure 1 A schematic flow chart showing a character defect detection method according to an embodiment of the present application, see figure 1 , the character defect detection method of the present embodiment comprises the following steps:

[0031] Step S101, acquire the image to be inspected containing the character and the template character image corresponding to the character, convert the image to be...

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Abstract

The present application discloses a character defect detection method and device. The character defect detection method includes: acquiring an image to be inspected containing a character and a template character image corresponding to the character, converting the image to be inspected into a character image corresponding to the template images with the same format; extracting the first effective region containing characters in the image to be checked, and extracting the second effective region including template characters in the template character image; obtaining the first image based on the first effective region, and obtaining the first image based on the first effective region Obtaining a second image in the effective area; calculating a transformed image indicating information difference between the first image and the second image according to the first image and the second image; obtaining information of the transformed image according to information of the transformed image The character defect detection result of the image to be inspected. According to the technical solution of this embodiment, the detection accuracy can reach the accuracy of manual detection, and the effect of automation is achieved, which saves labor costs.

Description

technical field [0001] The present application relates to the field of image technology, in particular to a character defect detection method and device. Background technique [0002] Printing or engraving characters on commodities, such as some product information (origin, product name, corporate trademark, etc.) is a reflection of the appearance of customized products. Since the printing head of the current printing equipment or laser engraving equipment generally has certain errors when printing characters, such as the stroke thickness of the characters is not completely consistent, the detection of these characters has become an important link in the product production process. At present, most character defect detection is still done manually, which has low efficiency and high labor cost. Contents of the invention [0003] In view of the above problems, the present application is proposed to provide a character defect detection method and device that overcome the abo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/95G01N21/956G01N21/01
CPCG01N21/95G01N21/956G01N21/01G01N2021/0112G06V30/133G06T7/001G06T2207/30144G06T2207/10024G06T2207/20056G06T7/90G06V30/1444G06T11/001G06T2207/30176G06T3/02
Inventor 李士钰张一凡田继锋
Owner GOERTEK INC