Visual Defect Inspection for Deep-Aperture Components With Coarse-to-Fine Contour Extraction
IEEE Transactions on Instrumentation and Measurement(2020)
Abstract
This paper investigates automatic quality inspection for the components with a small diameter and deep aperture. An automatic pick-and-place system is constructed, which employs an endoscope to achieve better image quality aiming at the characteristics of the component. A coarse-to-fine contour extraction algorithm with four steps is presented to inspect the component's quality. First, approximate...
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Key words
Inspection,Image edge detection,Apertures,Task analysis,Wires,Shape,Endoscopes
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