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Laboratoire d'InfoRmatique en Image et Systèmes d'information

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Laboratoire d'InfoRmatique en Image et Systèmes d'information
UMR 5205 CNRS / INSA Lyon / Université Claude Bernard Lyon 1 / Université Lumière Lyon 2 / École Centrale de Lyon
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Yohann Bearzi


PhD student

Team Geometrical Modeling, Computational Geometry, Procedural Generation
Institution Claude Bernard University of Lyon 1
Location Nautibus (Université Lyon1)
E-mail ybearzi at
Contact details Publications Thesis
Subject Example-based style synthesis for geometric shapes
Abstract High resolution 3D geometric shapes acquisition new techniques created new challenges regarding geometric details or textures on a surface. Details on a 3D shape are either considedred as small scale geometric displacement, or as a mapped texture on the entire shape. Image detail transfer between images has been much studied, but some existing algorithms cannot directly be applied on 3D shape because of the irregular sampling pattern. In our work, we try to better caracterize geometric details for point sets. We propose to extend to shapes a well known filter in image processing : detail enhancement (Unsharp Masking). To do so, we intorduced a new local shape description tool defining a surface as a linear combinaison of functions in polar coordinates : Wavejets. We show theoretical and practical interests of our decomposition. The last part of our work is to propose a detail transfer procedure, adapting already known routines from image processing to surfaces out of our new tools.
Advisor Julie Digne
Advisor Raphaëlle Chaine

Last update : 2018-05-22 09:42:07