3D

Discrete Geometry and Applied Mathematics for Snow Metamorphism

(ANR Blanc project ANR-11-BS02-009)

Nov. 2011 - Aug. 2016

Team Leader LAMA

DigitalSnow

Fully deformable 3D digital partition model with topological control

The main contribution of this paper is the definition of multi-label simple points ensuring that the partition topology remains …

G. Damiand, A. Dupas, Jacques-Olivier Lachaud

Fully deformable 3D digital partition model with topological control

Maximal Planes and Multiscale Tangential Cover of 3D Digital Objects

The sequence of maximal segments (i.e. the tangential cover) along a digital boundary is an essential tool for analyzing the geometry …

E. Charrier, Jacques-Olivier Lachaud

Digital geometry tools and Algorithm.

Since 2010.

An open-source generic C++ library for digital geometry.

Co-founder

Multi-Label Simple Points Definition for 3D Images Digital Deformable Model

The main contribution of this paper is the definition of multilabel simple points that ensures that the partition topology remains …

A. Dupas, G. Damiand, Jacques-Olivier Lachaud

Géométrie discréte et images numériques

Dans ce chapitre, nous traitons de l’approximation des surfaces discrètes par des maillages. Cette transformation ne sera pas …

Jacques-Olivier Lachaud, S. Valette

Géométrie des Objets Discrets Bruités

(ANR project ANR-06-BLANC-0225)

Nov. 2006 - May. 2011

Team leader LaBRI/LAMA

GeoDIB

Deformable Model with Adaptive Mesh and Automated Topology Changes

Due to their general and robust formulation deformable models offer a very appealing approach to 3D image segmentation. However there …

Jacques-Olivier Lachaud, B. Taton

Deformable Model with Adaptive Mesh and Automated Topology Changes

Delaunay conforming iso-surface; skeleton extraction and noise removal

Iso-surfaces are routinely used for the visualization of volumetric structures. Further processing (such as quantitative analysis, …

D. Attali, Jacques-Olivier Lachaud

Continuous analogs of digital boundaries: A topological approach to iso-surfaces

The definition and extraction of objects and their boundaries within an image are essential in many imaging applications. Classically, …

Jacques-Olivier Lachaud, A. Montanvert