Product reflective surface defect detection method and system

Abstract

The invention provides a product reflective surface defect detection method. The method comprises the following steps: acquiring a reflective surface stripe image and a white reflective image of a to-be-detected product; obtaining a region of interest of the to-be-detected product; acquiring a reference point of the region of interest; performing morphological filtering processing on the stripe image; carrying out image binarization processing; performing image edge morphological processing based on the template image; and detecting defects. The invention also provides a product reflective surface defect detection system. The system comprises a display, an industrial camera, image processing equipment, mechanical transmission equipment and a product fixing clamp. According to the invention, the conditions that the product surface image detection area and the number of detection points are different, the to-be-detected area reflects light and has radian and the like are fully considered, the contour of the to-be-detected image ROI, the image in the contour and the reference point of the ROI are respectively obtained by utilizing white light reflection image information, and the image with stripe interference removed and defects well reserved is obtained; and rapid, accurate and stable detection of each ROI defect in the reflective surface of the to-be-detected product is realized.

Description

technical field [0001] The invention belongs to the technical field of product reflective surface detection, and in particular relates to a product reflective surface defect detection method and system. Background technique [0002] In industrial products, the surface is often made into a reflective style for the sake of product beauty. In the production process or surface hot stamping process, affected by the production process, hot stamping equipment, external environment and other factors, the reflective surface after production may sometimes have bubbles, unevenness, marks, scratches, hair strands, bottom leakage, etc. Defects, these defects will directly affect the overall appearance and quality of the product. [0003] In view of the current situation that consumers have higher and higher requirements for product details, it is particularly important for manufacturers to detect and screen product quality and defects during the production process. At present, in the p...

AI Technical Summary

Problems solved by technology

At present, in the process of product production, the quality inspection of products mostly relies on the naked eye observation, which is affected by subjective factors, and there are problems such as limited precision, unstable effect and high work intensity.

In order to solve the above problems, those skilled in the art provide some automatic product surface detection equipment, but the current automatic detection equipment cannot take into account the different sizes of the image detection area, the number of detection points, the reflection of the area to be detected and the curvature, etc.

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