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Handwritten Character Recognition System using Chain code and Correlation Coefficient

Author(s): Ravi Sheth | N C Chauhan | Mahesh M Goyani | Kinjal A Mehta

Journal: International Journal of Computer Applications
ISSN 0975-8887

Volume: icrtitcs;
Issue: 2;
Date: 2012;
Original page

Keywords: Pattern recognition | handwritten character recognition | feature extraction | chain code | correlation coefficient | neural network | support vector machine

Pattern recognition deals with categorization of input data into one of the given classes based on extraction of features. Handwritten Character Recognition (HCR) is one of the well-known applications of pattern recognition. For any recognition system, an important part is feature extraction. A proper feature extraction method can increase the recognition ratio. In this paper, a chain code based feature extraction method is investigated for developing HCR system. Chain code is working based on 4-neighborhood or 8neighborhood methods. In this paper, 8neighborhood method has been implemented which allows generation of eight different codes for each character. These codes have been used as features of the character image, which have been later on used for training and testing for Neural Network (NN) and Support Vector Machine (SVM) classifiers. In this work we have also implemented HCR system with the use of correlation coefficient. Comparison of all the methods for HCR systems are highlighted at the end.
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