Hidden Markov models for character recognition

  • Authors:
  • J. A. Vlontzos;S. Y. Kung

  • Affiliations:
  • Siemens Corp. Res., Cholargos;-

  • Venue:
  • IEEE Transactions on Image Processing
  • Year:
  • 1992

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Abstract

A hierarchical system for character recognition with hidden Markov model knowledge sources which solve both the context sensitivity problem and the character instantiation problem is presented. The system achieves 97-99% accuracy using a two-level architecture and has been implemented using a systolic array, thus permitting real-time (1 ms per character) multifont and multisize printed character recognition as well as handwriting recognition