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Issue No.08 - August (1992 vol.14)
pp: 853-857
<p>A statistical approach for the recognition of Arabic characters is introduced. As a first step, the character is segmented into primary and secondary parts (dots and zigzags). The secondary parts of the character are then isolated and identified separately, thereby reducing the number of classes from 28 to 18. The moments of the horizontal and vertical projections of the remaining primary characters are then calculated and normalized with respect to the zero-order moment. Simple measures of the shape are obtained from the normalized moments. A 9-D feature vector is obtained for each character. Classification is accomplished using quadratic discriminant functions. The approach was evaluated using isolated, handwritten, and printed characters from a database established for this purpose. The results indicate that the technique offers better classification rates in comparison with existing methods.</p>
Arabic character recognition; segmentation; horizontal projection; vertical projections; zero-order moment; 9-D feature vector; quadratic discriminant functions; classification rates; character recognition; statistical analysis
H. Al-Yousefi, S.S. Upda, "Recognition of Arabic Characters", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.14, no. 8, pp. 853-857, August 1992, doi:10.1109/34.149585
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