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Sensors 2012, 12(11), 14774-14791; doi:10.3390/s121114774
Article

Real-Time Curvature Defect Detection on Outer Surfaces Using Best-Fit Polynomial Interpolation

1,* , 1,*  and 1,2
Received: 25 July 2012 / Revised: 11 October 2012 / Accepted: 18 October 2012 / Published: 2 November 2012
(This article belongs to the Section Physical Sensors)

Abstract

This paper presents a novel, real-time defect detection system, based on a best-fit polynomial interpolation, that inspects the conditions of outer surfaces. The defect detection system is an enhanced feature extraction method that employs this technique to inspect the flatness, waviness, blob, and curvature faults of these surfaces. The proposed method has been performed, tested, and validated on numerous pipes and ceramic tiles. The results illustrate that the physical defects such as abnormal, popped-up blobs are recognized completely, and that flames, waviness, and curvature faults are detected simultaneously.
Keywords: visual inspection system; flatness; waviness; surface defect detection system; curvature measurement visual inspection system; flatness; waviness; surface defect detection system; curvature measurement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Golkar, E.; Prabuwono, A.S.; Patel, A. Real-Time Curvature Defect Detection on Outer Surfaces Using Best-Fit Polynomial Interpolation. Sensors 2012, 12, 14774-14791.

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