期刊
PATTERN RECOGNITION
卷 35, 期 12, 页码 2973-2991出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0031-3203(02)00017-1
关键词
textile inspection; flaw detection; Gabor filters; texture analysis; image processing; computer vision; optimisation; segmentation; automated parameter selection
The task of detecting flaws in woven textiles can be formulated as the problem of segmenting a known non-defective texture from an unknown defective texture. In order to discriminate defective texture pixels from non-defective texture pixels, optimal 2-D Gabor filters are designed such that, when applied to non-defective texture, the filter response maximises a Fisher cost function. A pixel of potentially flawed texture is classified as defective or non-defective based on the Gabor filter response at that pixel. The results of this optimised Gabor filter classification scheme are presented for 35 different flawed homogeneous textures. These results exhibit accurate flaw detection with low false alarm rate. Potentially, our novel optimised Gabor filter method could be applied to the more complicated problem of detecting flaws in jacquard textiles. This second and more difficult problem is also discussed, along with some preliminary results. (C) 2002 Pattern Recognition Society. Published by Elsevier Science Ltd. All rights reserved.
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