A new thresholding approach for automatic generation of polygonal approximations
Autor
Fernández García, Nicolás Luis
Moral Martínez, Luis del
Carmona Poyato, Ángel
Medina-Carnicer, R.
Madrid-Cuevas, F.J.
Editor
ElsevierFecha
2016Materia
Digital planar curvesPolygonal approximation
Dominant points
Significance of contour points
Thresholding techniques
Object recognition
Assessment of polygonal approximations
Corner points
Automatic algorithm
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The present paper proposes a new algorithm for automatic generation of
polygonal approximations of 2D closed contours based on a new thresholding
method. The new proposal computes the signi cance level of the contour
points using a new symmetric version of the well-known Ramer, Douglas -
Peucker method, and then a new Adaptive method is applied to threshold
the normalized signi cance level of the contour points to generate the polygonal
approximation. The experiments have shown that the new algorithm
has good performance for generating polygonal approximations of 2D closed
contours. Futhermore, the new algorithm does not require any parameter to
be tuned.