Precise Inspection of Geometric Parameters for Polyvinyl Chloride Pipe Section Based on Computer Vision
Author:
Bi Qilin,Lai Minling,Tang Huiling,Guo Yanyao,Li Jinyuan,Zeng Xinhong,Liu Zhijun
Abstract
The precise inspection of geometric parameters is crucial for quality control in the context of Industry 4.0. The current technique of precise inspection depends on the operation of professional personnel, and the measuring accuracy is restricted by the proficiency of operators. To solve the defects, this paper proposes a precise inspection framework for the geometric parameters of polyvinyl chloride (PVC) pipe section (G-PVC), using low-cost visual sensors and high-precision computer vision algorithms. Firstly, a robust imaging system was built to acquire images of a PVC pipe section under irregular illumination changes. Next, an engineering semantic model was established to calculate G-PVC like inner diameter, outer diameter, wall thickness, and roundness. After that, a region-of-interest (ROI) extraction algorithm was combined with an improved edge operator to obtain the coordinates of measured points on PVC end-face image in a stable and precise manner. Finally, our framework was proved highly precise and robust through experiments.
Funder
Natural Science Foundation of Guangdong Province, China
Science and Technology Department of Guangdong Province, China
Science and Technology Project of Guangzhou
Special Fund Project for Cultivating Science and Technology Innovation of University Students
Innovation and Entrepreneurship Education Project of Universities in Guangzhou
Publisher
International Information and Engineering Technology Association
Subject
Electrical and Electronic Engineering
Cited by
2 articles.
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