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http://hdl.handle.net/10553/46168
Title: | Handwritten digits parameterization for HMM based recognition | Authors: | Travieso, Carlos M. Morales, Ciro R. Alonso, Itziar G. Ferrer, Miguel A. |
UNESCO Clasification: | 3307 Tecnología electrónica | Keywords: | handwritten character recognition | Issue Date: | 1999 | Journal: | IEE Conference Publication | Conference: | 7th IEE Conference on Image Processing and its Applications (IPA99) Proceedings of the 1999 7th International Conference on Image Processing and its Applications |
Abstract: | Handwriting classification or recognition methods based on neural networks (NN) have been extensively studied and they are now well known. This process, which parameterises the geometric structure of the digits as a previous stage to their recognition by the neural network, has the inconvenience of ignoring the sequential character of handwriting. The method proposed explores the improvement introduced in a handwritten recognition system when it incorporates the sequential information of handwriting and the hidden Markov model (HMM) is used as a classifier. The handwritten off-line classifier proposed acquire the handwritten characters by a scanner and after their parameterisation (include noise filtering, binarization, thinning and vectorisation) as a sequence is recognised by the HMM classifier, which provides a good probabilistic representation of sequences having large variations. Different parameterisation techniques are introduced and compared. | URI: | http://hdl.handle.net/10553/46168 | ISSN: | 0537-9989 | Source: | IEE Conference Publication[ISSN 0537-9989], p. 770-774 |
Appears in Collections: | Actas de congresos |
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