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Pattern Analysis & Applications

, Volume 3, Issue 4, pp 314–324 | Cite as

An HMM-MLP Hybrid Model for Cursive Script Recognition

  • Jin Ho Kim
  • Kye Kyung Kim
  • Ching Y. Suen

Abstract.

This paper presents an HMM (Hidden Markov Model)-MLP (Multi-Layer Perceptron) hybrid model for recognising cursive script words. We adopt an explicit segmentation-based word level architecture to implement an HMM classifier. An efficient state transition model and a parameter re-estimation scheme are introduced to use non-scaled and non-normalised symbol vectors without having to label primitive vectors. This approach brings well-formed discrete signals for the variable state duration of the HMM. We also introduce a new probability measure as well as conventional schemes to combine the proposed HMMs and a general MLP. The main contributions of this model are a novel design of the segmentation-based variable length HMMs, and an efficient method of combining two distinct classifiers. Experiments have been conducted using the legal word database of CENPARMI with encouraging results.

Keywords.Cheque processing; Cursive script recognition; Hidden Markov Model; HMM-MLP hybrid model; Legal word recognition 

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Copyright information

© Springer-Verlag London Limited 2000

Authors and Affiliations

  • Jin Ho Kim
    • 1
  • Kye Kyung Kim
    • 1
  • Ching Y. Suen
    • 1
  1. 1.Centre for Pattern Recognition and Machine Intelligence, Concordia University, Montreal, Quebec, CanadaCA

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