NDLI: Localization and extraction of text in Telugu document images

Content Provider	IEEE Xplore Digital Library
Author	Negi, A. Kasinadhuni, N.
Copyright Year	2003
Description	Author affiliation: Dept. of Comput. & Inf. Sci., Hyderabad Univ., India (Negi, A.)
Abstract	Segmentation of document images into text and non-text regions is an important step in the processing of document images, so that optical character recognition may be performed on the textual portions. Although in the literature this problem is approached in a script independent manner, we present a system to locate and extract regions of Telugu text based on the circular nature of the script. The process is started by obtaining the Sobel gradient magnitude of the gray level image. Then, the Hough transform for circles is performed to locate the circular features of Telugu text. A region growing process on the located circles yields text regions with connected blocks of text. This is followed by recursive XY cuts to segment the regions into paragraphs, lines and word regions. A region merging process with a bottom-up approach is then used to envelope individual words. Local binarization of the word MBRs yields connected components containing glyphs for recognition. The segmentation process succeeds in extracting text from images with complex non-Manhattan layouts which is commonly found in various Telugu magazines.
Sponsorship	IEEE Region 10
Starting Page	749
Ending Page	752
File Size	268310
Page Count	4
File Format	PDF
ISBN	0780381629
DOI	10.1109/TENCON.2003.1273279
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-15
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image segmentation Optical character recognition software Image analysis Merging Computational Intelligence Society Character recognition Image recognition Text recognition Performance analysis Filters
Content Type	Text
Resource Type	Article

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