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Proceedings Paper

First experiments on a new online handwritten flowchart database
Author(s): Ahmad-Montaser Awal; Guihuan Feng; Harold Mouchère; Christian Viard-Gaudin
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Paper Abstract

We propose in this paper a new online handwritten flowchart database and perform some first experiments to have a baseline benchmark on this dataset. The collected database consists of 419 flowcharts labeled at the stroke and symbol levels. In addition, an isolated database of graphical and text symbols was extracted from these collected flowcharts. Then, we tackle the problem of online handwritten flowchart recognition from two different points of view. Firstly, we consider that flowcharts are correctly segmented, and we propose different classifiers to perform two tasks, text/non-text separation and graphical symbol recognition. Tested with the extracted isolated test database, we achieve up to 90% and 98% in text/non-text separation and up to 93.5% in graphical symbols recognition. Secondly, we propose a global approach to perform flowchart segmentation and recognition. For this latter, we adopt a global learning schema and a recognition architecture that considers a simultaneous segmentation and recognition. Global architecture is trained and tested directly with flowcharts. Results show the interest of such global approach, but regarding the complexity of flowchart segmentation problem, there is still lot of space to improve the global learning and recognition methods.

Paper Details

Date Published: 24 January 2011
PDF: 10 pages
Proc. SPIE 7874, Document Recognition and Retrieval XVIII, 78740A (24 January 2011); doi: 10.1117/12.876624
Show Author Affiliations
Ahmad-Montaser Awal, IRCCyN/IVC, CNRS, Ecole Polytechnique de l'Univ. De Nantes (France)
Guihuan Feng, Nanjing Univ. (China)
Harold Mouchère, IRCCyN/IVC, CNRS, Ecole Polytechnique de l'Univ. de Nantes (France)
Christian Viard-Gaudin, IRCCyN/IVC, CNRS, Ecole Polytechnique de l'Univ. de Nantes (France)

Published in SPIE Proceedings Vol. 7874:
Document Recognition and Retrieval XVIII
Gady Agam; Christian Viard-Gaudin, Editor(s)

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