Study of the Consistency of Some Discriminatory Features Used by Document Examiners in the Analysis of Handwritten Letter a'

  • Authors:
  • Philip Jonathan Sutanto;Graham Leedham;Vladimir Pervouchine

  • Affiliations:
  • -;-;-

  • Venue:
  • ICDAR '03 Proceedings of the Seventh International Conference on Document Analysis and Recognition - Volume 2
  • Year:
  • 2003

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Abstract

In this paper a study of some structural features of hand-writtenletter a' is presented. The features under considerationare structural, style and formation features documentexaminer's use when studying a questioned document to determineits authorship or authenticity.Feature extraction algorithms for the feature set were developedto perform the extraction procedure automatically.The estimate of feature consistency is introduced and measuredfor each extracted feature. The extracted feature setis analyzed for linear independency and ability to be usedfor separation of author classes (i.e. authorship decision).The results on a set of 18 authors with approximately 40 letter'a's per author indicates a high level of consistency anddiscrimination ability for most of the features analysed.