Florent Dupont

Laboratoire d'Informatique en Images et Systèmes d'Information

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Guillaume Lavoué

Institut National des Sciences Appliquées de Lyon

T. Rovelli

Istituto Nazionale di Fisica Nucleare, Sezione di Bologna

W. J. Murray

Rutherford Appleton Laboratory

P. Morettini

Istituto Nazionale di Fisica Nucleare, Sezione di Genova

J. A. Barrio

Universidad Complutense de Madrid

R.C. Shellard

Centro Brasileiro de Pesquisas Físicas

A. Petrolini

Istituto Nazionale di Fisica Nucleare, Sezione di Genova

I. Lippi

Istituto Nazionale di Fisica Nucleare, Sezione di Padova

V. Obraztsov

European Organization for Nuclear Research

A. De Min

Iowa State University

Cooperative Institutions

Centre National de la Recherche Scientifique

1,069

European Organization for Nuclear Research

1,006

Université Paris Cité

598

Université Paris-Sud

470

Institut National de Physique Nucléaire et de Physique des Particules

424

Karlsruhe Institute of Technology

388

Institute of High Energy Physics

365

Iowa State University

316

University of Adelaide

303

Joint Institute for Nuclear Research

277

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Analyse d'images et reconnaissance des formes : application à l'identification automatique de défauts sur tôles décapées

Florent Dupont

Notre recherche porte sur le probleme de controle de produits en defilement. L'application concerne l'industrie siderurgique et, plus particulierement l'identification de defauts de surface sur des toles decapees. Dans un premier temps, nous la replacons dans son contexte industriel et commercial. Le schema general du systeme de reconnaissance est base sur deux etapes: une identification de l'aspect de l'image, puis une identification des defauts. Les domaines de l'analyse de texture, du traitement d'image et des methodes de discrimination ont ete abordes. Nous avons constitue, avec l'aide d'un expert du domaine, une importante base d'images de defauts, sur laquelle nous avons mis en place une chaine complete de traitements. Les taux de reconnaissance obtenus sont satisfaisants pour les deux etapes. Nous avons propose une technique de mesure de performances du processus de reconnaissance, qui permet son optimisation, son evaluation en fonction d'un objectif de controle produits ou de controle process, ainsi que la comparaison avec d'autres systemes. Notre methode d'evaluation a permis de comparer objectivement plusieurs methodes de discrimination neuronales et statistiques, et d'effectuer une selection optimale des descripteurs de defauts. Enfin, nous avons montre la faisabilite en temps reel, de la chaine de reconnaissance, en etudiant l'implantation materielle ou logicielle des algorithmes.

Source

Cite

Citations (0)

Semi-sharp subdivision surface fitting based on feature lines approximation

Computers & Graphics (2009)

Guillaume Lavoué Florent Dupont

Subdivision surface

Feature (linguistics)

Similarity (geometry)

10.1016/j.cag.2009.01.004

Cite

Citations (13)

First measurement of the strange quark asymmetry at the Z0 peak

Zeitschrift für Physik C (1995)

P. Abreu W. Adam T. Adye E. Agasi I. Ajinenko

Strange quark

10.1007/bf01564817

Cite

Citations (4)

Segmentation of temporal mesh sequences into rigidly moving components

Graphical Models (2012)

Romain Arcila Cédric Cagniart Franck Hétroy Edmond Boyer Florent Dupont

Sequence (biology)

Volume mesh

10.1016/j.gmod.2012.10.004

Cite

Citations (16)

Production of strange B-baryons decaying into Ξ∓−ℓ∓ pairs at LEP

Zeitschrift für Physik C (1995)

P. Abreu W. Adam T. Adye E. Agasi I. Ajinenko

Semileptonic decay

10.1007/bf01565255

Cite

Citations (17)

Curvature Based Triangle Mesh Segmentation with Boundary Rectification

HAL (Le Centre pour la Communication Scientifique Directe) (2003)

Guillaume Lavoué Florent Dupont Atilla Baskurt

We present a new and efficient algorithm for surface decomposition of arbitrary triangle meshes, based on curvature information analysis. Our method not only cut the object along its edges but decomposes it into constant curvature surfaces, with a precision threshold given by the user. Contrary to the existing methods, a post-processing allow to obtain patches that have smooth and regular boundaries, and thus which can be later fit with NURBS or subdivision surfaces in a multi-resolution compression perspective.

Subdivision surface

Constant curvature

Constant (computer programming)

Triangle mesh

Source

Cite

Citations (9)

99m-Tc MIBI-SPECT for determination of the global and regional perfusion reserve of the left ventricle

Nuklearmedizin (1990)

Udalrich Buell Hartmut Kaiser E. Vosberg Juergen vom Dahl E. Kleinhans

Source

Cite

Citations (1)

3DOR 2017: Frontmatter

Ioannis Pratikakis Florent Dupont Maks Ovsjanikov

10.2312/3dor.20172005

Cite

Citations (0)

Just Noticeable Distortion Profile for Flat-Shaded 3D Mesh Surfaces

IEEE Transactions on Visualization and Computer Graphics (2015)

Georges Nader Kai Wang Franck Hétroy Florent Dupont

It is common that a 3D mesh undergoes some lossy operations (e.g., compression, watermarking and transmission through noisy channels), which can introduce geometric distortions as a change in vertex position. In most cases the end users of 3D meshes are human beings; therefore, it is important to evaluate the visibility of introduced vertex displacement. In this paper we present a model for computing a Just Noticeable Distortion (JND) profile for flat-shaded 3D meshes. The proposed model is based on an experimental study of the properties of the human visual system while observing a flat-shaded 3D mesh surface, in particular the contrast sensitivity function and contrast masking. We first define appropriate local perceptual properties on 3D meshes. We then detail the results of a series of psychophysical experiments where we have measured the threshold needed for a human observer to detect the change in vertex position. These results allow us to compute the JND profile for flat-shaded 3D meshes. The proposed JND model has been evaluated via a subjective experiment, and applied to guide 3D mesh simplification as well as to determine the optimal vertex coordinates quantization level for a 3D model.

Lossy compression

Observer (physics)

10.1109/tvcg.2015.2507578

Cite

Citations (20)

MEPP2: a generic platform for processing 3D meshes and point clouds

HAL (Le Centre pour la Communication Scientifique Directe) (2020)

Vincent Vidal Eric Lombardi Martial Tola Florent Dupont Guillaume Lavoué

In this paper, we present MEPP2, an open-source C++ software development kit (SDK) for processing and visualizing 3D surface meshes and point clouds. It provides both an application programming interface (API) for creating new processing filters and a graphical user interface (GUI) that facilitates the integration of new filters as plugins. Static and dynamic 3D meshes and point clouds with appearance-related attributes (color, texture information, normal) are supported. The strength of the platform is to be generic programming oriented. It offers an abstraction layer, based on C++ Concepts, that provides interoperability over several third party mesh and point cloud data structures, such as OpenMesh, CGAL, and PCL. Generic code can be run on all data structures implementing the required concepts, which allows for performance and memory footprint comparison. Our platform also permits to create complex processing pipelines gathering idiosyncratic functionalities of the different libraries. We provide examples of such applications. MEPP2 runs on Windows, Linux & Mac OS X and is intended for engineers, researchers, but also students thanks to simple use, facilitated by the proposed architecture and extensive documentation.

Memory footprint

Application programming interface

Plug-in

Microservices

OS X

Interface (matter)

Graphical user interface

Generic programming

Reverse engineering

Source

Cite

Citations (2)