A new scheme for unconstrained handwritten text-line segmentation

Alaei, A. and Pal, U. and Nagabhushan, P. (2011) A new scheme for unconstrained handwritten text-line segmentation. PATTERN RECOGNITION, 44 (4). pp. 917-928.

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Abstract

Variations in inter-line gaps and skewed or curled text-lines are some of the challenging issues in segmentation of handwritten text-lines. Moreover, overlapping and touching text-lines that frequently appear in unconstrained handwritten text documents significantly increase segmentation complexities. In this paper, we propose a novel approach for unconstrained handwritten text-line segmentation. A new painting technique is employed to smear the foreground portion of the document image. The painting technique enhances the separability between the foreground and background portions enabling easy detection of text-lines. A dilation operation is employed on the foreground portion of the painted image to obtain a single component for each text-line. Thinning of the background portion of the dilated image and subsequently some trimming operations are performed to obtain a number of separating lines, called candidate line separators. By using the starting and ending points of the candidate line separators and analyzing the distances among them, related candidate line separators are connected to obtain segmented text-lines. Furthermore, the problems of overlapping and touching components are addressed using some novel techniques. We tested the proposed scheme on text-pages of English, French, German, Greek, Persian, Oriya and Bangla and remarkable results were obtained. (C) 2010 Elsevier Ltd. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Handwritten document processing; Unconstrained handwritten line segmentation; Piece-wise painting; Mathematical morphology; Thinning
Subjects:	D Physical Science > Computer Science
Divisions:	Department of > Computer Science
Depositing User:	Users 23 not found.
Date Deposited:	27 Jun 2019 10:16
Last Modified:	27 Jun 2019 10:16
URI:	http://eprints.uni-mysore.ac.in/id/eprint/2545

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