Carton indentation quality detection method and system based on computer vision

Abstract

The invention relates to the technical field of image processing, in particular to a carton indentation quality detection method and system based on computer vision, and the method comprises the steps: obtaining a surface image of to-be-detected corrugated paper, and detecting an indentation center line of an indentation in the surface image, a Gaussian mixture model of gray distribution of each pixel point on the indentation center line in the vertical direction on the surface image is obtained, model parameters of the Gaussian mixture model are structural feature vectors of the corresponding pixel points, and uniformity is obtained according to the similarity between the structural feature vectors; and obtaining the anisotropy of each pixel point in the surface image according to the characteristic value of each pixel point, obtaining the carton damage degree of each pixel point, and obtaining the quality risk of the to-be-detected corrugated paper. According to the method, the carton damage degree and the tearing expansion risk of the indentation structure of the corrugated paper are sequentially detected through the image, so that the quality problem possibly occurring when the carton is folded along the indentation is accurately evaluated.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and system for detecting indentation quality of a carton based on computer vision. Background technique [0002] Corrugated paper began at the end of the 18th century and at the beginning of the 19th century, because of its light weight and cheap price, wide range of uses, easy production, and can be recycled and even reused, its application has grown significantly. By the beginning of the 20th century, it had gained a comprehensive popularity, promotion and application for making packaging for a variety of commodities. [0003] In the production process of the carton, it is necessary to die-cut and indent the corrugated paper, so that the corrugated paper can be folded into a carton along the indentation. In the corrugated paper die-cutting and indentation process, there are often cases where the steel wire of the die-cutting board of the corrugated paper die-...

AI Technical Summary

Problems solved by technology

In the die-cutting and creasing process of corrugated paper, it often occurs that the steel wire of the die-cutting board of the corrugated paper die-cutting and creasing machine is loose and the elastic rubber strip is not properly selected, resulting in uneven depth and width of the indentation, and damage to the corrugated fiber. , not only affects the appearance of the produced cartons, but even makes the produced cartons unqualified and scrapped directly

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