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IEEE Trans Syst Man Cybern B Cybern ; 41(4): 1136-48, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21335315

RESUMO

In this paper, we propose a new approach for symbol recognition using structural signatures and a Galois lattice as a classifier. The structural signatures are based on topological graphs computed from segments which are extracted from the symbol images by using an adapted Hough transform. These structural signatures-that can be seen as dynamic paths which carry high-level information-are robust toward various transformations. They are classified by using a Galois lattice as a classifier. The performance of the proposed approach is evaluated based on the GREC'03 symbol database, and the experimental results we obtain are encouraging.

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