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Multilinguistic handwritten character recognition by Bayesian decision-based neural networks

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2 Author(s)
Hsin-Chia Fu ; Dept. of Comput. Sci. & Inf. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan ; Yeong Yuh Xu

In this paper, we present a Bayesian decision-based neural network (BDNN) for multilinguistic handwritten character recognition. The proposed self-growing probabilistic decision-based neural network (SPDNN) adopts a hierarchical network structure with nonlinear basis functions and a competitive credit-assignment scheme. Our prototype system demonstrates a successful utilization of SPDNN to the handwriting of Chinese and alphanumeric character recognition on both public databases (CCL/HCCR1 for Chinese and CEDAR for the alphanumerics) and in-house database (NCTU/NNL). Regarding the performance, experiments on three different databases all demonstrated high recognition (86-94%) accuracy as well as low rejection/acceptance (6.7%) rates. As for the processing speed, the whole recognition process (including image preprocessing, feature extraction, and recognition) consumes approximately 0.27 s/character on a Pentium-100 based personal computer, without using a hardware accelerator or coprocessor

Published in:

Signal Processing, IEEE Transactions on  (Volume:46 ,  Issue: 10 )

Date of Publication:

Oct 1998

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