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Authors: Cláudia S. Ribeiro ; João M. Gil ; João R. Caldas Pinto and João M. Sousa

Affiliation: Technical University of Lisbon, Instituto Superior Técnico, GCAR, Portugal

Abstract: This paper proposes an optical character recognition system based on fuzzy logic for 17th century printed documents. The process consists of two stages: training with collected character image examples and new character image classification. Training builds fuzzy membership functions from aligned oriented features extracted using Gabor filters. These are used in classification to select a most likely character group for new data. A post-processing stage with a proposed modified Levenshtein word distance metric further improves results. A success rate of 88% is achieved on a significant test set.

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Paper citation in several formats:
S. Ribeiro, C.; M. Gil, J.; R. Caldas Pinto, J. and M. Sousa, J. (2004). Ancient Document Recognition Using Fuzzy Methods. In Proceedings of the 4th International Workshop on Pattern Recognition in Information Systems - PRIS, (ICEIS 2004) ISBN 972-8865-01-5, pages 98-107. DOI: 10.5220/0002685600980107

@conference{pris04,
author={Cláudia {S. Ribeiro}. and João {M. Gil}. and João {R. Caldas Pinto}. and João {M. Sousa}.},
title={Ancient Document Recognition Using Fuzzy Methods},
booktitle={Proceedings of the 4th International Workshop on Pattern Recognition in Information Systems - PRIS, (ICEIS 2004)},
year={2004},
pages={98-107},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002685600980107},
isbn={972-8865-01-5},
}

TY - CONF

JO - Proceedings of the 4th International Workshop on Pattern Recognition in Information Systems - PRIS, (ICEIS 2004)
TI - Ancient Document Recognition Using Fuzzy Methods
SN - 972-8865-01-5
AU - S. Ribeiro, C.
AU - M. Gil, J.
AU - R. Caldas Pinto, J.
AU - M. Sousa, J.
PY - 2004
SP - 98
EP - 107
DO - 10.5220/0002685600980107