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  • 标题:Printed Noisy Greek Characters Recognition Using Hidden Markov Model, Kohonen Network, K Nearest Neighbours and Fuzzy Logic
  • 本地全文:下载
  • 作者:Salouan ; S. Safi ; B. Bouikhalene
  • 期刊名称:International Journal of Signal Processing, Image Processing and Pattern Recognition
  • 印刷版ISSN:2005-4254
  • 出版年度:2015
  • 卷号:8
  • 期号:10
  • 页码:241-256
  • DOI:10.14257/ijsip.2015.8.10.26
  • 出版社:SERSC
  • 摘要:In this paper, we present for printed multi-oriented, multi-scaled and noisy Greek characters recognition a comparison in terms of precision, rapidity and stability between several classifiers which the first one is a probabilistic that is hidden Markov model, the second is a neuronal that is Kohonen network or self-organizing maps while the rest of other classifiers are based on a combination between these both classifiers and even more a statistical method that is K nearest neighbors in their tree different versions which are majority voting, weighted distances and fuzzy. For this purpose we have for pre- processed each character image by the median filter and the thresholding technique, then in order to extract efficiently their features, we have exploited the Krawtchouk invariant moments
  • 关键词:Printed multi-oriented; multi-scaled and noisy Greek characters; Median ; filter; Thresholding; Krawtchouk invariant moments; Hidden Markov model; Kohonen ; network; K nearest neighbors; Fuzzy logic
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