Malaysian Journal of Computer Science (ISSN 0127-9084)
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Article Information
Title:A Robust Script Identification System for Historical Indian Document Images
Auhtor(s): S. Kavitha,P. Shivakumara,G. Hemantha Kumar,C. L. Tan,
Journal:Malaysian Journal of Computer Science (ISSN 0127-9084)
Volume:28, No 4
Year:2015
Keywords:Indus document, Dominant points, Proximity matrix, Variance, Indian scripts identification
Abstract:Automatic script identification in archives of documents is essential for searching a specific document in order to choose an appropriate Optical Character Recognizer (OCR) for recognition. Besides, identification of one of the oldest historical documents such as Indus scripts is challenging and interesting because of inter script similarities. In this work, we propose a new robust script identification system for Indian scripts that includes Indus documents and other scripts, namely, English, Kannada, Tamil, Telugu, Hindi and Gujarati which helps in selecting an appropriate OCR for recognition. The proposed system explores the spatial relationship between dominant points,namely, intersection points, end points and junction points of the connected components in the documents to extract the structure of the components. The degree of similarity between the scripts is studied by computing the variances of the proximity matrices of dominant points of the respective scripts. The method is evaluated on 700 scanned document images. Experimentalresults show that the proposed system outperforms the existing methods in terms of classification rate.
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