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Intelligent Visual Recognition and Classification of Cork Tiles With Neural Networks

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2 Author(s)
Georgieva, A. ; Nuffield Dept. of Obstetrics & Gynecology, Univ. of Oxford, Oxford ; Jordanov, I.

An intelligent machine vision system is investigated and used for pattern recognition and classification of seven different types of cork tiles. The system includes image acquisition with a charge-coupled device (CCD) camera, texture feature generation (co-occurrence matrices and Laws' masks), analysis and processing of the feature vectors [linear discriminant analysis (LDA) and principal component analysis (PCA)], and cork tiles classification with feedforward neural networks (NN), employing our GLPtau S (genetic low-discrepancy search) hybrid global optimization method. In addition, the same NN are trained with backpropagation (BP) and the obtained results are compared with the ones from GLPtau S . The NN generalization abilities are discussed and assessed with respect to the NN architectures and the texture feature sets. The reported results are very encouraging with testing rate reaching up to 95%.

Published in:

Neural Networks, IEEE Transactions on  (Volume:20 ,  Issue: 4 )

Date of Publication:

April 2009

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