Bayesian Network Modeling of Hangul Characters for On-line Handwriting Recognition

  • Authors:
  • Sung-Jung Cho;Jin H. Kim

  • Affiliations:
  • -;-

  • Venue:
  • ICDAR '03 Proceedings of the Seventh International Conference on Document Analysis and Recognition - Volume 1
  • Year:
  • 2003

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Abstract

In this paper, we propose a Bayesian network frameworkfor explicitly modeling components and their relationshipsof Korean Hangul characters. A Hangul character ismodeled with hierarchical components: a syllable model,grapheme models, stroke models and point models. Eachmodel is constructed with subcomponents and their relationshipsexcept a point model, the primitive one, which isrepresented by a 2-D Gaussian for X-Y coordinates of pointinstances. Relationships between components are modeledwith their positional dependencies. For on-line handwrittenHangul characters, the proposed system shows higherrecognition rates than the HMMsystem with chain code features:95.7% vs 92.9% on average.