Matching of Graphical Symbols in Line-Drawing Images Using Angular Signature Information
Identifieur interne : 003909 ( Crin/Curation ); précédent : 003908; suivant : 003910Matching of Graphical Symbols in Line-Drawing Images Using Angular Signature Information
Auteurs : Salvatore Tabbone ; Laurent Wendling ; Karl TombreSource :
- International Journal on Document Analysis and Recognition ; 2003.
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Abstract
In this paper, a method for matching complex objects in line drawings is presented.Our approach is based on the notion of \mathcal{F}-signatures, which are a special kind of histograms of forces~\cite{matsakis98,matsakis99a,wendling02}. Such histograms have low time complexity and describe signatures which are invariant to fundamental geometrical transformations such as scaling, translation, symmetry and rotation. This article presents a new application of this notion, in the field of symbol identification and recognition. To improve the efficiency of matching, we propose to use an approximation of the \mathcal{F}-signature from Fourier series, and the associated matching.
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