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Algorithm for real-time defect detection of micro pipe inner surface

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Abstract

Quantitative analysis and identification of unknown shaped defects have always been difficult and challenging in the quality control of micro pipes. A series of algorithms for defect detection and feature recognition is presented in this study. A lightweight convolution neural network (LCNN) is introduced to realize defect discrimination. A shallow segmentation network is employed to cooperate with LCNN to obtain pixel-wise crack detection, and a feature recognition algorithm for quantitative measurement is presented. The experimental results show that the proposed algorithms can achieve defect detection with an accuracy of 98.5%, segmentation with mean intersection over union of 0.834, and latency of only 0.2 s. It can be used for online feature recognition and defect detection of the inner surface of a hole.

© 2021 Optical Society of America

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Corrections

Xinyu Zhao and Bin Wu, "Algorithm for real-time defect detection of micro pipe inner surface: erratum," Appl. Opt. 60, 11256-11256 (2021)
https://opg.optica.org/ao/abstract.cfm?uri=ao-60-36-11256

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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