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Insertion de détail dans des figures autosimilaires

Houssam Hnaidi 1 Eric Guérin 1 Samir Akkouche 1
1 GeoMod - Modélisation Géométrique, Géométrie Algorithmique, Fractales
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
Abstract : This paper deals with the approximation of natural objects using a fractal model equipped with a detail concept like wavelet transforms. The fractal model is a projected Iterated Function System (IFS) model. This model unifies the IFS model and a classical model used in computer graphics (free form representation with control points). The concept of wavelet transforms is used for adding a detail part to the fractal model. The approximation problem has a two steps formulation : a nonlinear fitting optimisation of the fractal model and a linear transform for the computation of the detail coefficients. We have used this approximation method to approximate two leaves border. Then, the detail concept has been used to transfer the geometric texture from one leaf to another, and also to amplify these geometric details.
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Submitted on : Monday, June 12, 2017 - 5:10:00 PM
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  • HAL Id : hal-01537641, version 1


Houssam Hnaidi, Eric Guérin, Samir Akkouche. Insertion de détail dans des figures autosimilaires. 20ièmes Journées de l'AFIG 2007, Nov 2007, Marne la Vallée, France. ⟨hal-01537641⟩



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