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Fourth International Conference Document Analysis and Recognition (ICDAR'97)
High Accuracy Handwritten Chinese Character Recognition by Improved Feature Matching Method
Ulm, GERMANY
August 18-August 20
ISBN: 0-8186-7898-4
Cheng-Lin Liu, Korea Advanced Institute of Science and Technology
In-Jung Kim, Korea Advanced Institute of Science and Technology
Jin H. Kim, Korea Advanced Institute of Science and Technology
In this paper, we propose some strategies to improve the recognition performance of feature matching method for handwritten Chinese character recognition (HCCR). Favorable modifications are given to all stages throughout the recognition. In preprocessing, we devised a modified nonlinear normalization algorithm and a connectivity-preserving smoothing algorithm. For feature extraction, an efficient directional decomposition algorithm and a systematic approach to design blurring mask are presented. Finally, a modified LVQ3 algorithm is applied to optimize the reference vectors for classification. The integrated effect of these strategies significantly improves the recognition performance. Recognition results on databases ETL8B2 and ETL9B are promising.
Index Terms:
Handwritten Chinese character recognition, Feature matching, Nonlinear normalization, Directional feature, Learning vector quantization.
Citation:
Cheng-Lin Liu, In-Jung Kim, Jin H. Kim, "High Accuracy Handwritten Chinese Character Recognition by Improved Feature Matching Method," icdar, pp.1033, Fourth International Conference Document Analysis and Recognition (ICDAR'97), 1997
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