A METHOD FOR HANDWRITTEN CHARACTERS RECOGNITION BASED ON A VECTOR FIELD

Tetsuya Izumi, Tetsuo Hattori, Hiroyuki Kitajima, Toshinori Yamasaki

Abstract

In order to obtain a low computational cost method for automatic handwritten characters recognition, this paper proposes a combined system of two rough classification methods based on features of a vector field: one is autocorrelation matrix method, and another is a low frequency Fourier expansion method. In each method, the representation is expressed as vectors, and the similarity is defined as a weighted sum of the squared values of the inner product between input pattern and the reference patterns that are normalized eigenvectors of KL ( Karhunen-Loeve) expansion. This paper also describes a way of deciding the weight coefficients based on linear regression, and shows the effectiveness of the proposed method by illustrating some experimentation results for 3036 categories of handwritten Japanese characters.

References

  1. Masato S. et al., 2001. A Discriminant Method of Similar Characters with Quadratic Compound Function, IEICE Transactions, Vol.J84-D2, No.8, pp.1557- 1565, Aug. 2001 (in Japanese).
  2. Takashi N. et al., 2000. Accuracy Improvement by Compound Discriminant Functions for Resembling Character Recognition, IEICE Transactions, Vol.J83- D2, No.2, pp.623-633, Feb. 2000 (in Japanese).
  3. Kazuhiro S. et al., 2001. Accuracy Improvement by Gradient Feature and Variance Absorbing Covariance Matrix in Handwritten Chinese Character Recognition, IEICE Transactions, Vol.J84-D2, No.11, pp.2387-2397, Nov. 2001 (in Japanese).
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Paper Citation


in Harvard Style

Izumi T., Hattori T., Kitajima H. and Yamasaki T. (2004). A METHOD FOR HANDWRITTEN CHARACTERS RECOGNITION BASED ON A VECTOR FIELD . In Proceedings of the First International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO, ISBN 972-8865-12-0, pages 417-420. DOI: 10.5220/0001149004170420


in Bibtex Style

@conference{icinco04,
author={Tetsuya Izumi and Tetsuo Hattori and Hiroyuki Kitajima and Toshinori Yamasaki},
title={A METHOD FOR HANDWRITTEN CHARACTERS RECOGNITION BASED ON A VECTOR FIELD},
booktitle={Proceedings of the First International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO,},
year={2004},
pages={417-420},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001149004170420},
isbn={972-8865-12-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the First International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO,
TI - A METHOD FOR HANDWRITTEN CHARACTERS RECOGNITION BASED ON A VECTOR FIELD
SN - 972-8865-12-0
AU - Izumi T.
AU - Hattori T.
AU - Kitajima H.
AU - Yamasaki T.
PY - 2004
SP - 417
EP - 420
DO - 10.5220/0001149004170420