Title:	AN OCR SYSTEM FOR GREEK PRINTED EARLY BOOKS BASED ON COMPUTATIONAL GEOMETRY ALGORITHMS
Author(s):	Marios Poulos, Yannis Kokkonas, Sozon Papavlasopoulos, George Bokos
ISBN:	978-972-8939-22-9
Editors:	Yingcai Xiao, Tomaz Amon and Piet Kommers
Year:	2010
Edition:	Single
Keywords:	Image Processing, Pattern Recognition, OCR, Greek Printed Early Books, Computational Geometry, Feature Extraction
Type:	Short Paper
First Page:	428
Last Page:	432
Language:	English
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Paper Abstract:	In this paper we propose a novel OCR system for Greek printed early books, combining image preprocessing with computational geometry technologies. Our aim was to carry out OCR digitalisation of a large collection of digitised, Greek early printed books dated from the late 15th century to the mid-18th century. The proposed method is based on: (i) image preprocessing using image binarisation and enhancement; (ii) the creation of a convex polygon that represents the feature extraction of each fount; and (iii) training and identification procedures based on algorithms of intersecting convex polygons. The major advantage of this method is that it can control the authentication of a published document image or its partial modification to a reliable degree. In this way the proposed system decision for the classification of a candidate letter is based on smart geometric practice. Experimental results have proved the efficiency of the proposed approach.
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