Unsupervised segmentation of surface defects

@inproceedings{Iivarinen1996UnsupervisedSO,
  title={Unsupervised segmentation of surface defects},
  author={Jukka Iivarinen and Juhani Rauhamaa and Ari Visa},
  booktitle={ICPR},
  year={1996}
}
A segmentation scheme to detect surface defects is proposed. An unsupervised neural network, the SelfOrganizing Map, is used to estimate the distribution of faulty-free samples. An unknown sample is classified as a defect if it differs enough from this estimated distribution. A new scheme for determining this difference is suggested. The scheme makes use of the Voronoi set of each map unit and defines a new rule for finding the best-matching map unit. The proposed scheme is general in the sense… CONTINUE READING
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