PCB defect detection method and device, computer equipment and storage medium

Abstract

The invention provides a PCB defect detection method and device, computer equipment and a storage medium, and relates to the technical field of image processing. According to the method, the original picture is detected through the defect detection model to obtain the pixel features of the target defect frame corresponding to the pre-estimated defect in the picture, the target picture containing the target defect frame is intercepted, the edge contour of the target defect frame is extracted, and the actual size of the edge contour is calculated; whether the actual size of the edge contour is larger than or equal to a preset defect standard value or not is judged, if the actual size is larger than or equal to the defect standard value, it is judged that the original picture has PCB defects, and if the actual size is smaller than the defect standard value, it is judged that the original picture does not have PCB defects. According to the invention, accurate positioning and quantitative evaluation of PCB defects can be realized, and the accuracy and automation degree of PCB detection are improved.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a PCB defect detection method, device, computer equipment and storage medium. Background technique [0002] The manufacturing process of Printed Circuit Board (PCB for short) consists of multiple stages, and various product defects, such as free copper defects, are easily introduced in the complex and cumbersome manufacturing process. These defects have different impacts on the product. When evaluating the defects, the manufacturer will also divide the defects into qualified and unqualified categories according to the defect type, defect size, defect proportion and other information, so as to ensure that the finished product is free of defects. Therefore, it is very necessary to accurately classify and quantitatively evaluate the defects on the printed circuit board. For the detection of defects in the PCB industry, the traditional solution adopts the meth...

AI Technical Summary

Problems solved by technology

For the detection of defects in the PCB industry, the traditional solution adopts the method of visual inspection by personnel, which is very subjective, and it is easy to cause defects to be over-inspected or missed, and the quality of inspection cannot be guaranteed.

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