Edge defect detection method and device of target object, and storage medium

A technology for target objects and edge defects, applied in the field of image processing, can solve problems such as low detection efficiency and low detection accuracy

Active Publication Date: 2021-07-06
SHENZHEN HUAHAN WEIYE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem mainly solved by this application is: how to overcome the problems of low detection accuracy and low detection efficiency existing in the edge defect detection of existing industrial products

Method used

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  • Edge defect detection method and device of target object, and storage medium
  • Edge defect detection method and device of target object, and storage medium
  • Edge defect detection method and device of target object, and storage medium

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Embodiment 2

[0118] On the basis of the edge defect detection method of the target object disclosed in the first embodiment, this embodiment discloses an edge detection device.

[0119] Please refer to Figure 13 , the edge detection device in this embodiment mainly includes a camera 21, a processor 22 and a display 23, which will be described separately below.

[0120] The camera 21 is used to obtain an image of the target object to be detected by taking an image. The target objects here can be various products after cutting, such as mobile phone casings, circuit boards, mechanical workpieces, assembly parts, etc. These products often have irregular contour edges (such as edges formed by free curves) and are prone to burrs.

[0121] The processor 22 is connected to the camera 21, and is used to detect the image to be detected by the edge defect detection method disclosed in the first embodiment to obtain the edge defect of the target object. It can be understood that the processor 22 ca...

Embodiment example 3

[0133] Please refer to Figure 15 , this embodiment discloses an edge detection device, the edge detection device 3 mainly includes a memory 31 and a processor 32 .

[0134] The main components of the edge detection device 3 are a memory 31 and a processor 32 . Wherein, the memory 31 is used as a computer-readable storage medium, and is mainly used for storing a program, and the program may be a program code corresponding to the edge defect detection method in the first embodiment. Wherein, the processor 32 is connected with the memory 31, and is used for executing the program stored in the memory 31 to realize the edge defect detection method. For the functions implemented by the processor 32, reference may be made to the processor 22 in Embodiment 2, which will not be described in detail here.

[0135] Those skilled in the art can understand that all or part of the functions of the various methods in the foregoing implementation manners can be realized by means of hardware...

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Abstract

The invention relates to an edge defect detection method and device of a target object and a storage medium. The edge defect detection method comprises the steps of obtaining a to-be-detected image of the target object and a set region of interest; performing edge detection on the region of interest to obtain an edge point set of the target object on a free curve; segmenting the free curve of the target object in the region of interest to obtain at least one curve segment, and obtaining a plurality of edge points corresponding to each curve segment in the edge point set; configuring a corresponding datum line for each curve segment, and calculating the distances from a plurality of corresponding edge points in the edge point set to the datum lines; comparing the distance with a preset distance threshold value, and determining a plurality of candidate defect points in the edge point set according to a comparison result; and determining the edge defect of the target object according to the plurality of candidate defect points. According to the technical scheme, burrs at the edge of the object can be detected in an image processing mode, and the accuracy and efficiency of edge detection are improved.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a method and device for detecting edge defects of a target object, and a storage medium. Background technique [0002] Industrial products often contain edges of various shapes, such as circles, rectangles, and combinations of straight lines and arcs. Edge is an important feature of industrial products, which directly affects the quality of industrial products, and edge defect detection has always been a difficult problem for those skilled in the art. Industrial product edge defect detection is mainly to detect the consistency of the product edge, that is, to detect whether there are defects such as convex marks and dents on the edge of the product. [0003] For example, for the edges of the mobile phone screen and the integrated circuit silicon chip, the mobile phone screen and the integrated circuit silicon chip generally have regular edges (the mobile p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/13G06T7/136G06K9/32G01N21/88
CPCG06T7/0008G06T7/13G06T7/136G01N21/8851G06T2207/10004G06T2207/30108G01N2021/8887G06V10/25G06V2201/07
Inventor 杨洋
Owner SHENZHEN HUAHAN WEIYE TECH
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