Recognition of Arabic handwritten words using contextual character models

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper we present a system for the off-line recognition of cursive Arabic handwritten words. This system in an enhanced version of our reference system presented in [El-Hajj et al., 05] which is based on Hidden Markov Models (HMMs) and uses a sliding window approach. The enhanced version proposed here uses contextual character models. This approach is motivated by the fact that the set of Arabic characters includes a lot of ascending and descending strokes which overlap with one or two neighboring characters. Additional character models are constructed according to characters in their left or right neighborhood. Our experiments on images of the benchmark IFN/ENIT database of handwritten villages/towns names show that using contextual character models improves recognition. For a lexicon of 306 name classes, accuracy is increased by 0.6% in absolute value which corresponds to a 7.8% reduction in error rate.

Original languageEnglish
Title of host publicationDocument Recognition and Retrieval XV
DOIs
Publication statusPublished - 31 Mar 2008
EventDocument Recognition and Retrieval XV - San Jose, CA, United States
Duration: 29 Jan 200831 Jan 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6815
ISSN (Print)0277-786X

Conference

ConferenceDocument Recognition and Retrieval XV
Country/TerritoryUnited States
CitySan Jose, CA
Period29/01/0831/01/08

Keywords

  • AWHR
  • Arabic words
  • Contextual character models
  • HMMs
  • Handwriting recognition

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