Frederic Cazals

Conformal Alpha Shapes (2009)

M. Pauly, M. Zwicker, Frederic Cazals, Joachim Giesen, Mark Pauly, Afra Zomorodian

We define a new filtration of the Delaunay triangulation of a finite set of points in R d, similar to the alpha shape filtration. The new filtration is parameterized by a local scale parameter...

Computing the Arrangement of Circles on a Sphere, with Applications in Structural Biology (2009)

Cazals, Frederic, Loriot, Sebastien

Balls and spheres are the simplest modeling primitives after affine ones, which accounts for their ubiquitousness in Computer Science and Applied Mathematics. Amongst the many applications, we may...

Computing the Arrangement of Circles on a Sphere, with Applications in Structural Biology (2009)

Cazals, Frederic, Loriot, Sebastien

Balls and spheres are the simplest modeling primitives after affine ones, which accounts for their ubiquitousness in Computer Science and Applied Mathematics. Amongst the many applications, we may...

Design of the CGAL Spherical Kernel and application to arrangements of circles on a sphere (2009)

De Castro, Pedro, Cazals, Frederic, Loriot, Sebastien, Teillaud, Monique

This paper presents a CGAL kernel for algorithms manipulating 3D spheres, circles, and circular arcs. The paper makes three contributions. First, the mathematics underlying two non trivial predicates...

Design of the CGAL Spherical Kernel and application to arrangements of circles on a sphere (2009)

De Castro, Pedro, Cazals, Frederic, Loriot, Sebastien, Teillaud, Monique

This paper presents a CGAL kernel for algorithms manipulating 3D spheres, circles, and circular arcs. The paper makes three contributions. First, the mathematics underlying two non trivial predicates...

Reconstruction d'ensembles compacts 3D (2009)

Cazals, Frederic, Cohen-Steiner, David

Reconstruire un modèle à partir d'échantillons est un problème central se posant en médecine numérique, en ingénierie inverse, en sciences naturelles, etc. Ces applications ont motivé une...

Reconstruction d'ensembles compacts 3D (2009)

Cazals, Frederic, Cohen-Steiner, David

Reconstruire un modèle à partir d'échantillons est un problème central se posant en médecine numérique, en ingénierie inverse, en sciences naturelles, etc. Ces applications ont motivé une...

On the Characterization and Selection of Diverse Conformational Ensembles, with Applications to Flexible Docking (2009)

Loriot, Sebastien, Sachdeva, Sushant, Bastard, Karine, Prevost, Chantal, Cazals, Frederic

To address challenging flexible docking problems, a number of docking algorithms pre-generate large collections of candidate conformers. To remove the redundancy from such ensembles, a central...

On the Characterization and Selection of Diverse Conformational Ensembles, with Applications to Flexible Docking (2009)

Loriot, Sebastien, Sachdeva, Sushant, Bastard, Karine, Prevost, Chantal, Cazals, Frederic

To address challenging flexible docking problems, a number of docking algorithms pre-generate large collections of candidate conformers. To remove the redundancy from such ensembles, a central...

Computing the Volume of a Union of Balls: a Certified Algorithm (2009)

Cazals, Frederic, Harshad, Kanhere, Loriot, Sebastien

Balls and spheres are amongst the simplest 3D modeling primitives, and computing the volume of a union of balls is an elementary problem. Although a number of strategies addressing this problem have...

Computing the Volume of a Union of Balls: a Certified Algorithm (2009)

Cazals, Frederic, Harshad, Kanhere, Loriot, Sebastien

Balls and spheres are amongst the simplest 3D modeling primitives, and computing the volume of a union of balls is an elementary problem. Although a number of strategies addressing this problem have...

Modeling Macro-Molecular Interfaces with Intervor (2009)

Cazals, Frederic, Loriot, Sebastien

Intervor is a software computing a parameter free representation of macro-molecular interfaces, based on the alpha-complex of the atoms. Given two interacting partners, possibly with water molecules...

Modeling Macro-Molecular Interfaces with Intervor (2009)

Cazals, Frederic, Loriot, Sebastien

Intervor is a software computing a parameter free representation of macro-molecular interfaces, based on the alpha-complex of the atoms. Given two interacting partners, possibly with water molecules...

A geometric knowledge-based coarse-grained scoring potential for structure prediction evaluation (2009)

Loriot, Sebastien, Cazals, Frederic, Levitt, Michael, Bernauer, Julie

Knowledge-based protein folding potentials have proven successful in the recent years. Based on statistics of observed interatomic distances, they generally encode pairwise contact information. In...

A geometric knowledge-based coarse-grained scoring potential for structure prediction evaluation (2009)

Loriot, Sebastien, Cazals, Frederic, Levitt, Michael, Bernauer, Julie

Knowledge-based protein folding potentials have proven successful in the recent years. Based on statistics of observed interatomic distances, they generally encode pairwise contact information. In...

Shelling the Voronoi interface of protein-protein complexes predicts residue activity and conservation (2008)

Benjamin Bouvier, Raik Grünberg, Michael Nilges, Frederic Cazals

The accurate description and analysis of protein-protein interfaces remains a challenging task. Traditional definitions, based on atomic contacts or changes in solvent accessibility, tend to over- or...

On the Characterization and Selection of Diverse Conformational Ensembles (2008)

Loriot, Sebastien, Sachdeva, Sushant, Bastard, Karine, Prevost, Chantal, Cazals, Frederic

As of today, a number of flexible docking experiments fail due to the lack of candidate conformations close from the bound ones. To tackle these difficult cases, which usually feature large...

On the Characterization and Selection of Diverse Conformational Ensembles (2008)

Loriot, Sebastien, Sachdeva, Sushant, Bastard, Karine, Prevost, Chantal, Cazals, Frederic

As of today, a number of flexible docking experiments fail due to the lack of candidate conformations close from the bound ones. To tackle these difficult cases, which usually feature large...

The Visual Computer manuscript No. (will be inserted by the editor) (2008)

Frederic Cazals, Joachim Giesen, Mark Pauly, Afra Zomorodian

Abstract Conformal alpha shapes are a new filtration of the Delaunay triangulation of a finite set of points in R d. In contrast to (ordinary) alpha shapes the new filtration is parameterized by a...

Shelling the Voronoi interface of protein-protein complexes predicts residue activity and conservation (2008)

Benjamin Bouvier, Raik Grünberg, Michael Nilges, Frederic Cazals

The accurate description of protein-protein interfaces remains a challenging task. Traditional criteria, based on atomic contacts or changes in solvent accessibility, tend to over or underpredict the...

Shelling the Voronoi interface of protein-protein complexes predicts residue activity and conservation (2008)

Bouvier, Benjamin, Gruenberg, Raik, Nilges, Michael, Cazals, Frederic

The accurate description of protein-protein interfaces remains a challenging task. Traditional criteria, based on atomic contacts or changes in solvent accessibility, tend to over or underpredict the...

Shelling the Voronoi interface of protein-protein complexes predicts residue activity and conservation (2008)

Bouvier, Benjamin, Gruenberg, Raik, Nilges, Michael, Cazals, Frederic

The accurate description of protein-protein interfaces remains a challenging task. Traditional criteria, based on atomic contacts or changes in solvent accessibility, tend to over or underpredict the...

On the Characterization and Selection of Diverse Conformational Ensembles (2008)

Loriot, Sebastien, Sachdeva, Sushant, Bastard, Karine, Prevost, Chantal, Cazals, Frederic

As of today, a number of flexible docking experiments fail due to the lack of candidate conformations close from the bound ones. To tackle these difficult cases, which usually feature large...

On the Characterization and Selection of Diverse Conformational Ensembles (2008)

Loriot, Sebastien, Sachdeva, Sushant, Bastard, Karine, Prevost, Chantal, Cazals, Frederic

As of today, a number of flexible docking experiments fail due to the lack of candidate conformations close from the bound ones. To tackle these difficult cases, which usually feature large...

Computing the exact arrangement of circles on a sphere, with applications in structural biology (2007)

Cazals, Frederic, Loriot, Sebastien

Given a collection of circles on a sphere, we adapt the Bentley-Ottmann algorithm to the spherical setting to compute the {\em exact} arrangement of the circles. The algorithm consists of sweeping...

Computing the exact arrangement of circles on a sphere, with applications in structural biology (2007)

Cazals, Frederic, Loriot, Sebastien

Given a collection of circles on a sphere, we adapt the Bentley-Ottmann algorithm to the spherical setting to compute the {\em exact} arrangement of the circles. The algorithm consists of sweeping...

Computing the exact arrangement of circles on a sphere, with applications in structural biology (2006)

Cazals, Frederic, Loriot, Sebastien

Given a collection of circles in a sphere, we adapt the Bentley-Ottmann algorithm to the spherical setting to compute the {\em exact} arrangement of the circles. Assuming the circles are induced by...

Computing the exact arrangement of circles on a sphere, with applications in structural biology (2006)

Cazals, Frederic, Loriot, Sebastien

Given a collection of circles in a sphere, we adapt the Bentley-Ottmann algorithm to the spherical setting to compute the {\em exact} arrangement of the circles. Assuming the circles are induced by...

Visual Comput (2006) DOI 10.1007/s00371-006-0027-1 ORIGINAL ARTICLE (2006)

Frederic Cazals, Joachim Giesen, Mark Pauly, Afra Zomorodian, J. Giesen, M. Pauly, ...

The method of alpha shapes was originally motivated for the study of points in the plane [9]. This method was later generalized to higher dimensional points [10]. Alpha shapes define a family of...

Estimating Differential Quantities using Polynomial fitting of Osculating Jets (2005)

Cazals, Frederic, Pouget, Marc

This paper addresses the point-wise estimation of differential properties of a smooth manifold $S$ ---a curve in the plane or a surface in $3D$--- assuming a point cloud sampled over $S$ is provided....

Estimating Differential Quantities using Polynomial fitting of Osculating Jets (2005)

Cazals, Frederic, Pouget, Marc

This paper addresses the point-wise estimation of differential properties of a smooth manifold $S$ ---a curve in the plane or a surface in $3D$--- assuming a point cloud sampled over $S$ is provided....

CAZALS F.: Accurate interactive specular reflections on curved objects (2005)

Pau Estalella, Ignacio Martin, George Drettakis, Dani Tost, Olivier Devillers, Frederic Cazals

We present a new method to compute interactive reflections on curved objects. The approach creates virtual reflected objects which are blended into the scene. We use a property of the reflection...

CAZALS F.: Accurate interactive specular reflections on curved objects (2005)

Pau Estalella, Ignacio Martin, George Drettakis, Dani Tost, Olivier Devillers, Frederic Cazals

We present a new method to compute interactive reflections on curved objects. The approach creates virtual reflected objects which are blended into the scene. We use a property of the reflection...

The use of global random directions to compute radiosity. Global Monte Carlo techniques. (1996)

Mateu Sbert, Departament Llenguatges, Robert Tobler, Claude Puech, Frederic Cazals, ...

Contents Acknowledgements 3 Foreword 9 1 Introduction 11 2 PreviousWork 14 2.1 The Radiosity equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.1.1 Rendering Equation ....

Filtering, Clustering and Hierarchy Construction: a New Solution for Ray-Tracing Complex Scenes (1995)

Frederic Cazals, George Drettakis, Claude Puech

Data structures that handle very complex scenes (hundreds of thousands of objects) have in the past either been laboriously built by hand, or have required the determination of unintuitive parameter...