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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 23, Iss. 11 — Nov. 1, 2006
  • pp: 2690–2701

Automated defect detection system using wavelet packet frame and Gaussian mixture model

Soo Chang Kim and Tae Jin Kang  »View Author Affiliations


JOSA A, Vol. 23, Issue 11, pp. 2690-2701 (2006)
http://dx.doi.org/10.1364/JOSAA.23.002690


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Abstract

This paper proposes an approach for automated defect detection in homogeneous textiles using texture analysis. The texture features are extracted by the wavelet packet frame decomposition followed by the Karhunen–Loève transform. The texture feature vector for each pixel is used as an input to a Gaussian mixture model that determines whether or not each pixel is defective. The parameters of the Gaussian mixture model are estimated with nondefective textile images in supervised defect detection. An approach for unsupervised defect detection is also presented that can identify the heterogeneous subblocks on the basis of the Kullback–Leibler divergence between two Gaussian mixtures. The proposed method was evaluated on 25 different homogeneous textile image pairs, one of each pair with a defect and the other with no defect, and was compared with existing methods using texture analysis. The experimental results yielded visually good segmentation and an excellent detection rate with a low false alarm rate for both supervised and unsupervised defect detection. This confirms the validity of the proposed approach for automated defect detection and localization.

© 2006 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(100.5010) Image processing : Pattern recognition
(150.0150) Machine vision : Machine vision
(150.3040) Machine vision : Industrial inspection

ToC Category:
Machine Vision

History
Original Manuscript: December 22, 2005
Revised Manuscript: April 13, 2006
Manuscript Accepted: May 20, 2006

Citation
Soo Chang Kim and Tae Jin Kang, "Automated defect detection system using wavelet packet frame and Gaussian mixture model," J. Opt. Soc. Am. A 23, 2690-2701 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-11-2690

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