Publications

Survey on differential estimators for 3d point clouds

Recent advancements in 3D scanning technologies, including LiDAR and photogrammetry, have enabled the precise digital replication of …

Léo Arnal-Anger, Thibault Lejemble, David Coeurjolly, Loïc Barthe, Nicolas Mellado

Survey on differential estimators for 3d point clouds

BSP-OT: Sparse transport plans between discrete measures in loglinear time

To solve the optimal transport problem between two uniform discrete measures of the same size, one seeks a bijective assignment that …

Baptiste Genest, Nicolas Bonneel, Vincent Nivoliers, David Coeurjolly

BSP-OT: Sparse transport plans between discrete measures in loglinear time

Geometry of Gauss digitized convex shapes

3D illustration of notations and concepts, from left to right: input convex shape X, its digitization Xh := X∩hZd seen as a collection of cubes (visually equivalent to the h-boundary ∂hX), its digitized convex hull Yh := CvxH (Xh), the h-boundary ∂hX with the normals of the closest facet on Yh.

Jacques-Olivier Lachaud, David Coeurjolly, Tristan Roussillon

Linear-Time Transport with Rectified Flows

Matching probability distributions allows to compare or interpolate them, or model their manifold. Optimal transport is a tool that …

Khoa Do, David Coeurjolly, Pooran Memari, Nicolas Bonneel

Linear-Time Transport with Rectified Flows

2D Bijective Rigid Rotation: quantitative and qualitative study

Preserving surfaces or volumes is crucial when applying rigid transformations of 2D/3D digital objects in medical images and computer …

Stéphane Breuils, David Coeurjolly, Jacques-Olivier Lachaud

2D Bijective Rigid Rotation: quantitative and qualitative study

Corrected Laplace-Beltrami operators for digital surfaces

Defining consistent calculus frameworks on discrete meshes is useful for processing the geometry of meshes or model numerical …

Colin Weill-Duflos, David Coeurjolly, Jacques-Olivier Lachaud

Corrected Laplace-Beltrami operators for digital surfaces

A Lagrangian shape and topology optimization framework based on semi-discrete optimal transport

Charles Dapogny, Bruno Levy, Edouard Oudet

A Lagrangian shape and topology optimization framework based on semi-discrete optimal transport

Neural Inpainting of Folded Fabrics with Interactive Editing

We propose a deep learning approach for inpainting holes in digital models of fabric surfaces. Leveraging the developable nature of …

Guillaume Gisbert, Raphaelle Chaine, David Coeurjolly

Neural Inpainting of Folded Fabrics with Interactive Editing

A methodology for the 3D characterization of surfaces using X-ray computed tomography: Application to additively manufactured parts

Many studies highlight the significance of three-dimensional surface topography characterization in assessing its effect on the …

Florian Steinhilber, Joel Lachambre, David Coeurjolly, Jean-Yves Buffiere, Guilhem Martin, Remy Dendievel

A methodology for the 3D characterization of surfaces using X-ray computed tomography: Application to additively manufactured parts

Non-Euclidean Sliced Optimal Transport Sampling

In machine learning and computer graphics, a fundamental task is the approximation of a probability density function through a …

Baptiste Genest, Nicolas Courty, David Coeurjolly

Non-Euclidean Sliced Optimal Transport Sampling

Digital Calculus Frameworks and Comparative Evaluation of their Laplace-Beltrami operators

Colin Weill-Duflos, David Coeurjolly, Jacques-Olivier Lachaud

Construction of Fast and Accurate 2D Bijective Rigid Transformation

Stéphane Breuils, David Coeurjolly, Jacques-Olivier Lachaud

Joint optimization of distortion and cut location for mesh parameterization using an Ambrosio-Tortorelli functional

UV mapping is a classical problem in computer graphics aiming at computing a planar parameterization of the input mesh with the lowest …

Colin Weill–Duflos, David Coeurjolly, Fernando de Goes, Jacques-Olivier Lachaud

Joint optimization of distortion and cut location for mesh parameterization using an Ambrosio-Tortorelli functional

Inpainting Holes In Folded Fabric Meshes

When scanning real shapes, occlusion issues may lead to holes in the reconstructed surface which must be solved using an inpainting …

Guillaume Gisbert, Raphaelle Chaine, David Coeurjolly

Inpainting Holes In Folded Fabric Meshes