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- Bruno Lévy, Sylvain Petitjean, Nicolas Ray, Jérôme Maillot
- ACM Trans. Graph.
- 2002

A Texture Atlas is an efficient color representation for 3D Paint Systems. The model to be textured is decomposed into charts homeomorphic to discs, each chart is parameterized, and the unfolded charts are packed in texture space. Existing texture atlas methods for triangulated surfaces suffer from several limitations, requiring them to generate a large… (More)

- Pierre Alliez, David Cohen-Steiner, Olivier Devillers, Bruno Lévy, Mathieu Desbrun
- ACM Trans. Graph.
- 2003

In this paper, we propose a novel polygonal remeshing technique that exploits a key aspect of surfaces: the intrinsic <i>anisotropy</i> of natural or man-made geometry. In particular, we use curvature directions to drive the remeshing process, mimicking the lines that artists themselves would use when creating 3D models from scratch. After extracting and… (More)

- Bruno Vallet, Bruno Lévy
- Comput. Graph. Forum
- 2008

We present a new method to convert the geometry of a mesh into frequency space. The eigenfunctions of the Laplace-Beltrami operator are used to define Fourier-like function basis and transform. Since this generalizes the classical Spherical Harmonics to arbitrary manifolds, the basis functions will be called Manifold Harmonics. It is well known that the… (More)

- Nicolas Ray, Wan-Chiu Li, Bruno Lévy, Alla Sheffer, Pierre Alliez
- ACM Trans. Graph.
- 2006

We present a new globally smooth parameterization method for the triangulated surfaces of arbitrary topology. Given two orthogonal piecewise linear vector fields defined over the input mesh (typically the estimated principal curvature directions), our method computes two piecewise linear periodic functions, aligned with the input vector fields, by… (More)

- Nicolas Ray, Bruno Vallet, Wan-Chiu Li, Bruno Lévy
- ACM Trans. Graph.
- 2008

Many algorithms in computer graphics and geometry processing use two orthogonal smooth direction fields (unit tangent vector fields) defined over a surface. For instance, these direction fields are used in texture synthesis, in geometry processing or in nonphotorealistic rendering to distribute and orient elements on the surface. Such direction fields can… (More)

- Alla Sheffer, Bruno Lévy, Maxim Mogilnitsky, Alexander Bogomyakov
- ACM Trans. Graph.
- 2005

Conformal parameterization of mesh models has numerous applicationsin geometry processing. Conformality is desirable for remeshing,surface reconstruction, and many other mesh processingapplications. Subject to the conformality requirement, theseapplications typically benefit from parameterizations with smallerstretch. The Angle Based Flattening (ABF)… (More)

- Bruno Lévy
- IEEE International Conference on Shape Modeling…
- 2006

One of the challenges in geometry processing is to automatically reconstruct a higher-level representation from raw geometric data. For instance, computing a parameterization of an object helps attaching information to it and converting between various representations. More generally, this family of problems may be thought of in terms of constructing… (More)

- Sébastien Gibot, Aurélie Cravoisy, Bruno Lévy, Marie - Christine Béné, Gilbert Charles Faure, P. E. Bollaert
- The New England journal of medicine
- 2004

BACKGROUND
The diagnosis and treatment of bacterial pneumonia in patients who are receiving mechanical ventilation remain a difficult challenge. The triggering receptor expressed on myeloid cells (TREM-1) is a member of the immunoglobulin superfamily, and its expression on phagocytes is specifically up-regulated by microbial products. The presence of… (More)

- Dong-Ming Yan, Bruno Lévy, Yang Liu, Feng Sun, Wenping Wang
- Comput. Graph. Forum
- 2009

We propose a new isotropic remeshing method, based on Centroidal Voronoi Tessellation (CVT). Constructing CVT requires to repeatedly compute Restricted Voronoi Diagram (RVD), defined as the intersection between a 3D Voronoi diagram and an input mesh surface. Existing methods use some approximations of RVD. In this paper, we introduce an efficient algorithm… (More)