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A segmentation-free approach to recognise printed Sinhala script using linear symmetry
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE).ORCID iD: 0000-0002-4929-1262
2004 (English)In: Pattern Recognition, ISSN 0031-3203, E-ISSN 1873-5142, Vol. 37, no 10, p. 2081-2089Article in journal (Refereed) Published
Abstract [en]

In this paper, a novel approach for printed character recognition using linear symmetry is proposed. When the conventional character recognition methods such as the artificial neural network based techniques are used to recognise Brahmi Sinhala script, segmentation of modified characters into modifier symbols and basic characters is a necessity but a complex issue. The large size of the character set makes the whole recognition process even more complex. In contrast, in the proposed method, the orientation features are effectively used to recognise characters directly using a standard alphabet as the basis without the need for segmentation into basic components. The edge detection algorithm using linear symmetry recognises vertical modifiers. The linear symmetry principle is also used to determine the skew angle. Experiments with the aim for an optical character recognition system for the printed Sinhala script show favourable results.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2004. Vol. 37, no 10, p. 2081-2089
Keywords [en]
Optical character recognition, Linear symmetry, Dynamic threshold, Skew correction
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-262DOI: 10.1016/j.patcog.2004.01.021ISI: 000223004500011Scopus ID: 2-s2.0-4544367323Local ID: 2082/557OAI: oai:DiVA.org:hh-262DiVA, id: diva2:237441
Available from: 2006-11-24 Created: 2006-11-24 Last updated: 2018-03-23Bibliographically approved

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Premaratne, Hemakumar LalithBigun, Josef

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf