Multiorder Polygonal Approximation of Digital Curves
Identifieur interne : 006132 ( Main/Merge ); précédent : 006131; suivant : 006133Multiorder Polygonal Approximation of Digital Curves
Auteurs : Isabelle Debled-Rennesson ; Salvatore Tabbone ; Laurent WendlingSource :
- Electronic Letters on Computer Vision and Image Analysis ; 2005.
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Abstract
In this paper, we propose a quick threshold-free algorithm, which computes the angular shape of a 2D object from the points of its contour. For that, we have extended a method [Debled & al 03] defined in a previous paper to a multiorder analysis. It is based on the arithmetical definition of discrete lines with variable thickness. We provide a framework to analyse a digital curve at different levels of thickness. The extremities of a segment provided at a high resolution are tracked at lower resolution in order to refine their location. The method is threshold-free and automatically provides a partitioning of a digital curve into its meaningful parts.
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