Bottom covered edge detection method based on contour fitting comparison and related device
A detection method and edge-wrapping technology, which is applied in the field of defect detection, can solve problems such as complex morphological characteristics of good products, achieve stable detection results, reduce misjudgment rates, and improve detection accuracy
Pending Publication Date: 2021-06-08
广东嘉铭智能科技有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The existing dynamic threshold segmentation algorithm based on polar coordinate expansion and circular scanning processing algorithm can realize this kind of defect detection, but because the morphological characteristics of good products are very complicated, for example, there are metal shavings inside the wrapping, and there are many dirty spots on the wrapping impact, often resulting in many misjudgments
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0059] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0060]The present application designs a bottom wrapping detection method based on contour fitting comparison and related devices, which achieves the beneficial effect of stable detection effect, improves detection accuracy, and reduces detection misjudgment rate.
[0061] For ease of understanding, see figure 1 , figure 1 It is a method flow chart of a bottom edg...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a bottom covered edge detection method based on contour fitting comparison and a related device, and the method comprises the steps: selecting a first region of interest through a fixed threshold value and an image position, obtaining a covered edge contour line according to a fitted minimum circumcircle, determining a contour region, finally, according to the fitted edge covering inner circle, the edge covering contour line and the contour area, determining a second region of interest and an edge covering gray area, wherein the second region of interest is a part where the edge covering is abnormal, the protruding part of the edge covering belongs to the edge covering material, the gray value is similar; and finally, obtaining the gray average value of the edge covering gray area, and judging whether the second region of interest is misjudged. The beneficial effect of stable detection effect is achieved, the detection accuracy is improved, and the misjudgment rate of detection is reduced.
Description
technical field [0001] The present application relates to the technical field of defect detection, and in particular to a bottom wrapping detection method based on contour fitting comparison and a related device. Background technique [0002] For many cylindrical products, in order to tighten the internal structure, the process of hemming is often used. The hemming process mainly uses a punch to wrap the excess tail into the bottom of the cylindrical product. However, due to various reasons in the stamping process of the punch press, there will be unqualified edge wrapping, which seriously affects the performance of the product. [0003] For the actual posture of the product, there will be various morphological features in the hemming image at the bottom of the workpiece. In order to realize automatic sorting, qualified products and unqualified products are selected through image processing technology, and the occurrence of misjudgments and missed judgments is reduced. ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06T7/00G06T7/13G06T7/136G01N21/88G01N21/952
CPCG01N21/8851G01N21/952G01N2021/8887G06T7/0004G06T2207/10004G06T2207/30164G06T7/13G06T7/136
Inventor 段峰劳永革文青邓甜坤
Owner 广东嘉铭智能科技有限公司