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Butt joint type weld joint feature point identification method and device, equipment and storage medium

A weld feature and recognition method technology, applied in the field of image recognition, can solve the problems affecting the extraction of weld feature points, poor welding tracking effect, etc., to achieve the effect of eliminating interference and improving stability

Active Publication Date: 2020-07-14
BEIJING BO TSING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In field applications, there are many kinds of interference such as arc light, spatter and metal reflection, which seriously affect the extraction of weld feature points, resulting in poor welding tracking effect. How to reduce or eliminate these interferences has always been a problem to be solved in the field of weld seam tracking.

Method used

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  • Butt joint type weld joint feature point identification method and device, equipment and storage medium
  • Butt joint type weld joint feature point identification method and device, equipment and storage medium
  • Butt joint type weld joint feature point identification method and device, equipment and storage medium

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Embodiment 1

[0025] figure 1 It is a flow chart of a method for identifying feature points of a butt-type weld provided in Embodiment 1 of the present invention, which is applicable to various disturbances such as arc light, spatter, and metal reflection in welding field applications, so that the butt-type (such as V-type) 口) In the case that errors may occur in the identification of weld feature points, the method can be performed by the identification device for butt-type weld feature points provided in the embodiment of the present invention, which can be implemented in software and / or hardware, and generally It can be integrated in the welding seam image acquisition equipment (including processor).

[0026] Such as figure 1 As shown, the method of this embodiment specifically includes:

[0027] S110. Acquire a frame of weld image, and acquire a first region of interest and a second region of interest in the weld image; wherein, the area ranges of the first region of interest and the s...

Embodiment 2

[0052] image 3 It is a flow chart of a method for identifying feature points of butt welds provided by Embodiment 2 of the present invention. On the basis of the above technical solution, this embodiment specifies the division method of the first region of interest and the second region of interest, including: after acquiring the first frame of weld image, detecting the first frame of weld SURF feature points in the image; according to the ordinate value of the SURF feature points, the SURF feature points are divided into a first type of feature point and a second type of feature point, wherein the first type of feature point indicates that within the stripe area of ​​the workpiece surface The feature points of the second type of feature points indicate the feature points in the stripe area at the bottom of the weld; determine the first region of interest according to the distribution of the first type of feature points; determine the second area of ​​interest according to th...

Embodiment 3

[0097] Figure 5 It is a structural schematic diagram of a butt weld feature point identification device provided by Embodiment 3 of the present invention, which is applicable to various interferences such as arc light, spatter, and metal reflection in the welding field application, so that the weld feature point identification is possible In the event of an error, the device can be implemented in the form of software and / or hardware, and generally can be integrated into a weld seam image acquisition device (including a processor).

[0098] Such as Figure 5 As shown, the device for identifying the feature points of the butt weld specifically includes: a region of interest acquisition module 310 , a binarization segmentation processing module 320 and a weld feature point identification module 330 . in,

[0099] A region of interest acquisition module 310, configured to acquire a frame of weld image, and acquire a first region of interest and a second region of interest in th...

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Abstract

The embodiment of the invention discloses a butt joint type weld joint feature point identification method and device, equipment and a storage medium. The method comprises the following steps: obtaining a frame of weld joint image, obtaining a first region of interest and a second region of interest in the weld joint image, wherein the region ranges of the first region of interest and the second region of interest are determined according to SURF feature points in the first frame of weld joint image, the first region of interest indicates a workpiece surface stripe region, and the second region of interest indicates a weld joint bottom stripe region; performing binarization segmentation processing on the first region of interest and the second region of interest to obtain a first binarization region of interest and a second binarization region of interest; and determining two weld joint feature points in the first binarization region of interest, and determining two weld joint featurepoints in the second binarization region of interest. According to the technical scheme, various interferences existing in field application can be reduced or eliminated, and the stability of weld joint feature point extraction is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of image recognition, and in particular to a method, device, equipment and storage medium for recognizing feature points of a butt weld. Background technique [0002] With the rapid development of industrial automation, welding automation is becoming more and more widely accepted and applied in the industrial field, especially in the welding of large steel structure equipment with high difficulty and high requirements. [0003] To realize welding automation, automatic seam tracking is a key point. The most critical technical issue in realizing seam tracking is to realize automatic identification of weld seam, that is, the extraction of seam feature points. In field applications, there are many kinds of interference such as arc light, spatter and metal reflection, which seriously affect the extraction of weld feature points, resulting in poor welding tracking effect. How to reduce or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32G06K9/38G06K9/46G06T7/00G06T7/11G06T7/136
CPCG06T7/0004G06T7/11G06T7/136G06T2207/10004G06T2207/30152G06V10/28G06V10/25G06V10/40
Inventor 冯消冰付寅飞
Owner BEIJING BO TSING TECH CO LTD
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