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Conference Papers Year : 2007

Camera-Based Graphical Symbol Detection


In this paper we present a method to locate and recognize graphical symbols appearing in real images. A vectorial signature is defined to describe graphical symbols. It is formulated in terms of accumulated length and angular information computed from polygonal approximation of contours. The proposed method aims to locate and recognize graphical symbols in cluttered environments at the same time, without needing a segmentation step. The symbol signature is tolerant to rotation, scale, translation, blurring effect and illumination changes usually present when working with scenes acquired with low resolution cameras in open environments.
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inria-00176893 , version 1 (04-10-2007)


  • HAL Id : inria-00176893 , version 1


Marçal Mr Rusiñol, Josep Jl Lladós, Philippe Dosch. Camera-Based Graphical Symbol Detection. 9th International Conference on Document Analysis and Recognition - ICDAR'07, IAPR, Sep 2007, Curitiba, Brazil. pp.884-888. ⟨inria-00176893⟩
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