First Experiments on a new Online Handwritten Flowchart Database

Ahmad-Montaser Awal 1 Guihuan Feng 2 Harold Mouchère 1 Christian Viard-Gaudin 1
1 irccyn-ivc
IRCCyN - Institut de Recherche en Communications et en Cybernétique de Nantes
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 78 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 99% and 96% in text/non-text separation and up to 81.3% 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
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https://hal.archives-ouvertes.fr/hal-00518451
Contributor : Harold Mouchère <>
Submitted on : Friday, September 17, 2010 - 12:52:44 PM
Last modification on : Wednesday, December 19, 2018 - 3:02:08 PM

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Ahmad-Montaser Awal, Guihuan Feng, Harold Mouchère, Christian Viard-Gaudin. First Experiments on a new Online Handwritten Flowchart Database. Document Recognition and Retrieval XVIII, Jan 2011, San Fransisco, United States. pp.7874 - 78740A, ⟨10.1117/12.876624⟩. ⟨hal-00518451⟩

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