Cylindrical label quality detection method and system

CN114627055BActive Publication Date: 2024-12-10甘肃旭康材料科技有限公司 +1
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Patent Information

Application Number
CN202210134655.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-02-14
Publication Date
2024-12-10
Estimated Expiration
2042-02-14

AI Technical Summary

Technical Problem

The existing cylinder label detection methods are inefficient and poorly intelligent, making it difficult to meet the growing production demand. Especially in the quality inspection of cilrin bottles in medicinal bottles, quality problems such as tilt, overlap, misprint and misprint are prone to occur. Influencing the sales and promotion of drugs.

Method used

Multi-camera is used to collect cylindrical label images, extract pixel values ​​based on edge point positioning and perspective imaging models, correct cylinder distortion, and obtain continuous and normalized cylinder label plane expansion diagram, and obtain planes through preset edge recognition and stitching algorithms. Expand the diagram for quality inspection.

Benefits of technology

It realizes intelligent and accurate quality inspection of cylinder labels, meets industrial production speed requirements, has low system construction cost, is robust, does not require complex equipment cooperation, and is suitable for quality inspection of cylinders such as ciling bottles.

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Abstract

The embodiment of the present invention provides a cylindrical label quality inspection method, which is used for cylindrical label quality inspection of bottled containers and belongs to the field of image processing technology. The method comprises: obtaining image information of cylindrical labels at preset multiple angles; wherein the multiple angle combinations cover all viewing angle images of the cylindrical label; performing edge recognition of the image information of the cylindrical label at each angle according to a preset edge recognition algorithm to obtain the image to be spliced ​​at each angle; performing splicing of the images to be spliced ​​at all angles according to a preset splicing algorithm to obtain a planar expansion diagram of the cylindrical label; and performing quality inspection of the cylindrical label according to the planar expansion diagram. The scheme of the present invention realizes intelligent and accurate quality inspection of cylindrical labels.
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Citation Information

Patent Citations

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