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A new nonlinear shape normalization method for off-line handwritten Chinese character recognition

  • Youbin Chen
  • Xiaoqing Ding
  • Youshou Wu
  • Ming Chen
Session T3B: OCR and Applications
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1351)

Abstract

How to correct the shape variations of handwritten Chinese characters is very important in off-line handwritten Chinese character recognition. In order to get rid of shape variations and reduce within-category variances directly from handwritten Chinese character image, a new nonlinear shape normalization method is proposed in this paper. In this new method, both of the stroke pixels and the background pixels are assigned with different feature densities. In addition, the feature density is local and two-dimensional. It is more reasonable and more effective than other nonlinear shape normalization methods. Its effectiveness has been demonstrated by our experiments.

Key words

off-line handwritten Chinese character recognition preprocessing feature density feature density equalization nonlinear shape normalization 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Youbin Chen
    • 1
  • Xiaoqing Ding
    • 1
  • Youshou Wu
    • 1
  • Ming Chen
    • 1
  1. 1.Image Processing Division, Dept. of Electronic EngineeringTsinghua UniversityBeijingP.R. China

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