Handwritten character recognition based on moment features derived from image partition

In this work we present a novel approach to handwritten character recognition which is based on the intuitive way in which characters are written as one or a few continuous lines. Therefore we calculate the zeroth, first and second radial moment as a function of the angle. In practice this is done b...

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Bibliographic Details
Main Authors: Tsang, I.J., Tsang, I.R., Van Dyck, D.
Format: Conference Proceeding
Language:English
Subjects:
Character recognition
Feature extraction
Fingerprint recognition
Handwriting recognition
Image recognition
Image segmentation
Partitioning algorithms
Pattern recognition
Physics
Testing
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Summary:In this work we present a novel approach to handwritten character recognition which is based on the intuitive way in which characters are written as one or a few continuous lines. Therefore we calculate the zeroth, first and second radial moment as a function of the angle. In practice this is done by dividing the character into 32 angular sections. The three obtained curves can be used for pattern recognition using statistical analysis. The method has been evaluated using the NIST handwritten character data set. At first, a simple chi-square test gave a result of 80.81% recognition rate at zero rejection rate for digits. Using a back-propagation algorithm the recognition rate obtained was 87.54% also at zero rejection rate, showing that the features are sufficient to discriminate the characters.
DOI:10.1109/ICIP.1998.723709