Interest of Syntactic Knowledge for On-Line Flowchart Recognition

  • Aurélie Lemaitre
  • Harold Mouchère
  • Jean Camillerapp
  • Bertrand Coüasnon
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7423)


In this paper, we address the problem of segmentation and recognition of on-line a posteriori flowcharts. Flowcharts are bi-dimensional documents, in the sense that the order of writing is not defined. Some statistical approaches have been proposed in the literature to label and segment the flowcharts. However, as they are very well structured documents, we propose to introduce some structural and syntactic knowledge on flowcharts to improve their recognition. For this purpose, we have used an existing grammatical off-line method with on-line a posteriori signal. We apply this work on a freely available database. The results demonstrate the interest of structural knowledge on the context to improve the recognition.


structured documents flowcharts symbol recognition on-line analysis grammatical analysis segmentation 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Aurélie Lemaitre
    • 1
  • Harold Mouchère
    • 2
  • Jean Camillerapp
    • 3
  • Bertrand Coüasnon
    • 3
  1. 1.IRISA - Université de Rennes 2Rennes CedexFrance
  2. 2.IRCCyN/IVC - UMR CNRS 6597Nantes Cedex 3France
  3. 3.IRISA - INSARennes CedexFrance

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