264 articles – 3159 Notices  [english version]
HAL : hal-00488041, version 1

Fiche concise  Récupérer au format
Generalized preimage of conics
Andres E., Largeteau-Skapin G.
Dans Progress in Combinatorial Image Analysis - International Workshop on Combinatorial Image Analysis IWCIA'09, Playa del Carmen : Mexique (2009) - http://hal.archives-ouvertes.fr/hal-00488041
Communications avec actes
Informatique/Traitement des images
Informatique/Mathématique discrète
Generalized preimage of conics
Eric Andres () 1, Gaëlle Largeteau-Skapin () 1
1 :  XLIM (XLIM)
http://www.xlim.fr
CNRS : UMR6172 – Université de Limoges
123 Avenue Albert THOMAS 87060 LIMOGES CEDEX
France
SIC
This paper focuses on the preimage of conics in dimension n. We use a parameter space to determine the Euclidean straight lines which cross the given pixel set. Those lines are gathered in the generalized preimage of the pixel set. To adapt this method to the Pythagorean model, based on the Euclidean distance d2, we propose the preimage for circles, spheres and n-spheres. We provide a mupad algorithm to reconstruct 2D discrete segments using the Pythagorean model. We complete this with the preimage of axis-aligned ellipsoids and elliptical hyperboloids.
Anglais
2009

Progress in Combinatorial Image Analysis
internationale
2009
48--62
Research Publishing Services

International Workshop on Combinatorial Image Analysis IWCIA'09
24/11/2009
27/11/2009
Playa del Carmen
Mexique

discrete geometry – reconstruction – preimage – circle – sphere – n-sphere.