Improvement of Matching and Evaluation in Handwritten Numeral Recognition Using Flexible Standard Patterns

  • Authors:
  • Hirokazu Muramatsu;Takashi Kobayashi;Takahiro Sugiyama;Keiichi Abe

  • Affiliations:
  • -;-;-;-

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

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Abstract

The purpose of this study is to develop a flexible matchingmethod for recognizing handwritten numerals based onthe statistics of shapes and structures learned from learningsamples. In the recognition method we reported before,there were problems in matching of the feature points andevaluation of matching. To solve them, we propose a newmatching method supplementing contour orientations withconvex/concave information and a new evaluation methodconsidering the structure of strokes.With these improvements the recognition rate rose to96.0% from the earlier figure 91.9%. We also made a recognitionexperiment on samples from the ETL-1 database andobtained the recognition rate 95.2%.