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Franck Hétroy-Wheeler

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![](http://morpheo.inrialpes.fr/people/hetroy/data/thumbs/thumbnail.hetroy.jpg) Position -------- Professor in computer science at the [![](http://irma.math.unistra.fr/~privat/images/logo-Unistra.jpg)](http://www.en.unistra.fr/) since September 2017. This means I am both: - teaching at the [department of mathematics and computer science](http://www.en.unistra.fr/index.php?id=21889) of the university; - and a researcher in the Engineering science, computer science and imaging research institute [![](https://icube.unistra.fr/fileadmin/templates/DUN/icube/images/logo.png)](http://icube.unistra.fr/en/), in the [IGG](https://igg.icube.unistra.fr/) team. ### Contact Lab. iCube, IGG team 300 bd Sébastien Brant CS 10413 F-67412 Illkirch Cedex, France *E-mail:* <hetroywheeler@unistra.fr> ### CV Diplomas: M.Eng. (*diplôme d'ingénieur*) [Grenoble INP - Ensimag](https://ensimag.grenoble-inp.fr/) ([Univ. Grenoble](https://www.univ-grenoble-alpes.fr/english/), 2000), M.Sc. (*DEA*) in applied maths (Univ. Grenoble, 2000), PhD (*doctorat*) in signal processing (Univ. Grenoble, 2003), Habilitation (*HDR*) in computer science (Univ. Grenoble, 2015). Positions: teaching assistant Univ. Grenoble (2002-2003), postdoc [UPC Barcelona](https://www.virvig.eu//index.php) (2004), tenured assistant professor (*maître de conférences*) Grenoble INP - Ensimag/<a>Laboratoire Jean Kuntzmann</a> (2004-2017, [EVASION](http://evasion.imag.fr/index.gb.html) then [Morpheo](https://team.inria.fr/morpheo/) research teams). Teaching -------- ### Teaching statement My teaching philosophy is to **help students become autonomous** in their learning process. For this purpose, they need to face knowledge, problems and methods of increasing complexity according to [Bloom's taxonomy](https://en.wikipedia.org/wiki/Bloom%27s_taxonomy). I strongly believe students can durably understand something only if the learning process follows the main ideas of [Jean Houssaye's **educational triangle**](https://fr.wikipedia.org/wiki/Triangle_p%C3%A9dagogique). I also like to make students **work in groups** in order to confront and increase their soft skills, e.g. following an [agile methodology](https://en.wikipedia.org/wiki/Agile_learning). ### Responsibility - Head (with [Caroline Essert](http://icube-igg.unistra.fr/en/index.php/Caroline_Essert)) of the *[Image track of the Master Curriculum in Engineering (CMI)](http://cmi-informatique.unistra.fr/image/)* of the University of Strasbourg ### Lectures - [Digital geometry](http://icube-igg.unistra.fr/fr/index.php/G%C3%A9om%C3%A9trie_num%C3%A9rique) *for 1st-year [master students in computer science](http://mathinfo.unistra.fr/formations/master/informatique/) (Spring 2018 to 2023)* - Knowledge and practice of computers *for 1st-year [bachelor students in maths and computer science](http://mathinfo.unistra.fr/formations/licence/informatique/) (Spring 2019 to 2023)* - Integrative project (organizer) for **3rd-year* **[CMI students in computer science](https://mathinfo.unistra.fr/formations/diplome-duniversite/du-cursus-master-ingenierie-cmi-informatique-image-realite-virtuelle-interactions-et-jeux/)* (Spring 2022 and 2023)** [The computer games developed during Spring 2022 by the students in the context of this project are now part of a digital exhibition in a local museum!](https://mathinfo.unistra.fr/actualites/actualite/news/le-numerique-a-loeuvre-vivez-une-experience-immersive-au-musee-1/) - Advanced algorithms *for 1st-year [master students in computer science](http://mathinfo.unistra.fr/formations/master/informatique/) (Autumn 2018 to 2022)* - Data structures and algorithms *for 2nd-year [bachelor students in computer science](http://mathinfo.unistra.fr/formations/licence/informatique/) (Autumn 2017 to 2022)* - [3D animation](https://seafile.unistra.fr/d/0ad83257df144e238e62/) **for 2nd-year* **[CMI students in computer science](https://mathinfo.unistra.fr/formations/diplome-duniversite/du-cursus-master-ingenierie-cmi-informatique-image-realite-virtuelle-interactions-et-jeux/)* (Autumn 2021 and 2022)** - Scientific literature projects (organizer) *for 2nd-year [CMI students in computer science](https://mathinfo.unistra.fr/formations/diplome-duniversite/du-cursus-master-ingenierie-cmi-informatique-image-realite-virtuelle-interactions-et-jeux/) (Spring 2021)* - Applied numerical analysis *for 2nd-year [bachelor students in computer science](http://mathinfo.unistra.fr/formations/licence/informatique/) (Autumn 2020)* - University work methodologies *for 1st-year [bachelor students in maths and computer science](http://mathinfo.unistra.fr/formations/licence/informatique/) (Autumn 2018 and 2019)* - Algorithms and programming *for 1st-year [bachelor students in maths and computer science](http://mathinfo.unistra.fr/formations/licence/informatique/) (Spring 2018)* Research -------- ### Research statement My work spans computer vision and computer graphics to computational geometry and topology and to remote sensing. With an overall goal of **shape analysis and understanding**, my research interests include the **acquisition, reconstruction and processing of 3D shapes in motion**. I have worked on shapes digitised with laser scanners as well as multi-view stereo systems or medical imagery. These shapes range from human bodies and organs to animals, trees, plants or even mechanical parts. Currently, I am especially interested in **trees and plants**, because of their challenging geometric and topological complexities. ### Popularisation Check the presentation I made (in French) about digital geometry processing in 2014 ([part 1](https://www.canal-u.tv/video/inria/geometrie_numerique_du_reel_au_virtuel_1ere_partie.14260), [part 2](https://www.canal-u.tv/video/inria/geometrie_numerique_du_reel_au_virtuel_2eme_partie.14261)). Check also [this video](https://www.youtube.com/watch?v=jjtVhjx8-3Q) by [Eric Casella](https://www.forestresearch.gov.uk/staff/eric-casella/). ### More details (works before 2016) - [Understanding digital shapes from the life sciences](http://morpheo.inrialpes.fr/people/hetroy/index.php?id=geo_med) - [Digital geometry processing for shapes in motion](http://morpheo.inrialpes.fr/people/hetroy/index.php?id=geo_anim) - [Geometric, topological and perceptual analysis of 3D meshes](http://morpheo.inrialpes.fr/people/hetroy/index.php?id=geo_other) ### Keywords Digital geometry processing, segmentation, reconstruction, geometric and topological feature computation. ### Project - **UrTrees** (2022-2023). MITI "Citizen science" funding from the CNRS, € 15k. #### Past projects - [**ROMI**](http://www.romi-project.eu/ "ROMI") (2017-2022, as a member of the Inria [MOSAIC](https://team.inria.fr/mosaic/) team). H2020 European project, € 3868k. - **SimPFI** (PI, 2019-2021). IDEX funding from the University of Strasbourg, € 59k. - **Crop3D** (PI, 2018-2021). [CIFRE](http://www.anrt.asso.fr/fr/cifre-7843) PhD scholarship from [ANRT](http://www.anrt.asso.fr/) with [Arvalis](https://www.arvalisinstitutduvegetal.fr/index.html). - [**Carambole**](http://morpheo.inrialpes.fr/carambole/) (PI, 2016-2017). Exploratory grant from LabEx PERSYVAL-lab, € 9k. - **Digitree** (PI, 2015-2018). AGIR grant from Univ. Grenoble Alpes, € 96k. - [**ACHMOV**](http://www.agence-nationale-recherche.fr/?Project=ANR-14-CE24-0030) (2014-2018). ANR grant, € 286k. - **ASLAAF** (PI, 2014-2015). AGIR grant from Grenoble INP, € 15k. - **PADME** (2013-2016). ARC6 grant from Région Rhône-Alpes, € 98k. - [**MORPHO**](http://morpho.inrialpes.fr/) (2010-2015, coordinator from 2012 to 2015). ANR grant, € 482k. - [**PlantScan3D**](https://team.inria.fr/virtualplants/research/project/plantscan3d/) (2009-2011). Grants from the Agropolis Foundation and Inria, € 118k. - **IDEAL** (2009). BQR grant from Grenoble INP, € 40k. - [**MADRAS**](http://www-rech.telecom-lille1.eu/madras/) (2008-2011). ANR grant, € 330k. - **MEGA** (PI, 2006-2008). Grants from Grenoble INP, UJF and Inria, € 55k. ### Students #### Former students ##### Postdocs - **[Joris Ravaglia](https://www.researchgate.net/scientific-contributions/Joris-Ravaglia-2064821037)** (2019-2020). Topic: Designing a simulator for planning Terrestrial laser scanner-based forest inventories. Part of the SimPFI project. Other advisor: [Eric Casella](https://www.forestresearch.gov.uk/staff/eric-casella/) (Forest Research, UK). - [**Dobrina Boltcheva**](https://members.loria.fr/DBoltcheva/) (2009-2011). Computation of the homology of simplicial complexes (2009-2010); virtual plant reconstruction mixing incomplete geometric data and a priori knowledge (2010-2011). Other advisors: [Jean-Claude Léon](https://team.inria.fr/imagine/jean_claude_leon/) (Grenoble INP, 2009-2010) and with [Marie-Paule Cani](https://www.lix.polytechnique.fr/geovic/members/marie-paule_cani/index.html) (Grenoble INP, 2010-2011). *Dobrina is now an associate professor at [Univ. Nancy](http://alice.loria.fr/) ([IUT Saint Dié](http://www.iutsd.uhp-nancy.fr/)).* ##### PhD students - **Katia Mirande** (2018-2022). Semantic and instancesegmentation of plant 3D point clouds. Other advisor: [Christophe Godin](https://team.inria.fr/virtualplants/christophe-godin/) (Inria Lyon). - **[Mélinda Boukhana](https://www.researchgate.net/profile/Melinda_Boukhana)** (2018-2021). 3D acquisition and reconstruction of crops to estimate individual leaf surfaces. Other advisor: [Benoît de Solan](https://www.researchgate.net/profile/Benoit_De_Solan) (Arvalis). *Mélinda is now an engineer working for Capgemini Engineering (Strasbourg, France).* - **[Romain Rombourg](https://scholar.google.com/citations?user=F9qar5kAAAAJ)** (2015-2019). Terrestrial laser scanner noise analysis, modelling and detection. Other advisor: [Eric Casella](https://www.forestry.gov.uk/fr/infd-6e8b4y) (Forest Research, UK). *Romain is now a postdoc at [Grenoble INP - Ensimag ](https://ensimag.grenoble-inp.fr/en)(Grenoble, France).* - **[Jinlong Yang](https://is.tuebingen.mpg.de/person/jyang)** (2015-2019). Learning shape spaces of dressed 3D human models in motion. Other advisor: [Stefanie Wuhrer](http://morpheo.inrialpes.fr/~wuhrer/) (Inria Grenoble). *Jinlong is now a postdoc at the [Max Planck Institute for Intelligent Systems](https://is.tuebingen.mpg.de/) (Tübingen, Germany).* - **[Li Wang](http://morpheo.inrialpes.fr/people/wang/)** (2013-2017). Algorithms and criteria for volumetric centroidal Voronoi tessellations. Other advisor: [Edmond Boyer](http://morpheo.inrialpes.fr/people/boyer/) (Inria Grenoble). *Li is now a solution architect working for Alibaba Group (Shenzhen, China).* - [ **Georges Nader**](https://people.sutd.edu.sg/~georges_nader/) (2013-2016). Evaluating the visibility threshold for a local geometric distortion on a 3D mesh and its applications. Other advisors: [Florent Dupont](http://liris.cnrs.fr/florent.dupont/) (Univ. Lyon 1) and [Kai Wang](http://www.gipsa-lab.grenoble-inp.fr/~kai.wang) (CNRS Grenoble). *Georges is now a research engineer working for Ubisoft (Bordeaux, France).* - **[Romain Arcila](http://www-evasion.imag.fr/Membres/Romain.Arcila/)** (2008-2011). Mesh sequences: classification and segmentation methods. Other advisor: [Florent Dupont](http://liris.cnrs.fr/florent.dupont/index_en.shtml) (Univ. Lyon). *Romain is now an engineer working for [DCNS](http://en.dcnsgroup.com/) (Angoulême, France).* - **[Sahar Hassan](http://evasion.imag.fr/Membres/Sahar.Hassan/)** (2007-2011). Integration of a priori anatomical knowledge into geometrical models. Other advisor: [Georges-Pierre Bonneau](http://www-evasion.inrialpes.fr/~Georges-Pierre.Bonneau/) (Univ. Grenoble Alpes). *Sahar is now an engineer working for [KLS Logistic](https://www.kls-group.fr/en) (Grenoble, France).* ### Software and data sets #### Software - [Plant leaf area estimation](https://gitlab.unistra.fr/plant-leaf-area-estimation-gvc-2022/) (PhD work of Mélinda Boukhana, [related paper](https://hal.inria.fr/hal-03770764)) - [4D Plant Analysis](https://github.com/romi/4d_plant_analysis) (Master work of Haolin Pan, [related paper](https://hal.inria.fr/hal-03402870)) - [3DtLaplace](http://3dtlaplace.gforge.inria.fr/) ([related paper](https://hal.inria.fr/hal-01318763)) - [CVT Generator](http://cvt.gforge.inria.fr/) (PhD work of Li Wang, [related paper 1](https://hal.inria.fr/hal-01185210), [related paper 2](https://hal.inria.fr/hal-01349059)) - [meshJND](https://github.com/gnader/meshJND) (PhD work of Georges Nader, [related paper 1](https://hal.science/hal-01242271), [related paper 2](https://hal.inria.fr/hal-01376275)) #### Data sets - [Chenopodium album](https://zenodo.org/record/6962994#.YuvYkS8itqs) dataset (PhD work of Katia Mirande, acquisitions by Marie Tisserand, Julie Charlaix and Fabrice Besnard, [related paper](https://hal.inria.fr/hal-03797682)) - [Arabidopsis 3D+t](https://zenodo.org/record/5205562#%23.YVsD_9ozaUk) dataset (Master work of Haolin Pan, acquisitions by Julie Charlaix, [related paper](https://hal.inria.fr/hal-03402870)) - Mesh sequences and motion capture data of [dressed humans in motion](https://team.inria.fr/morpheo/estimation-of-human-body-shape-in-motion-with-wide-clothing/) (PhD work of Jinlong Yang, [related paper](https://hal.inria.fr/hal-01344795)) - [Animation skeletons](http://evasion.imag.fr/Membres/Franck.Hetroy/Projects/Skeleton/gallery.html) for various animals ([related paper](https://hal.inria.fr/inria-00151606)) ### Publications

Publications

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Géométrie et topologie pour les maillages 3D

Franck Hetroy-Wheeler , Jean-Luc Mari , Gérard Subsol
Jérémie Chalopin; Pierre Guillon. Informatique Mathématique, Une photographie en 2019, CNRS Editions, 2019, 978-2-271-12611-5
Book sections hal-02058296v1
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A Graph-Based Approach for Simultaneous Semantic and Instance Segmentation of Plant 3D Point Clouds

Katia Mirande , Christophe Godin , Marie Tisserand , Julie Charlaix , Fabrice Besnard et al.
Frontiers in Plant Science, 2022, pp.1-20. ⟨10.3389/fpls.2022.1012669⟩
Journal articles hal-03746572v2
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A Graph-Based Approach for Simultaneous Semantic and Instance Segmentation of Plant 3D Point Clouds

Katia Mirande , Christophe Godin , Marie Tisserand , Julie Charlaix , Fabrice Besnard et al.
Frontiers in Plant Science, 2022, 13, pp.1012669. ⟨10.3389/fpls.2022.1012669⟩
Journal articles hal-03797682v1
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Geometric models for plant leaf area estimation from 3D point clouds: a comparative study

Mélinda Boukhana , Joris Ravaglia , Franck Hétroy-Wheeler , Benoit de Solan
Graphics and Visual Computing, 2022, ⟨10.1016/j.gvc.2022.200057⟩
Journal articles hal-03770764v1
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A 3D+t Laplace operator for temporal mesh sequences

Victoria Fernández Abrevaya , Sandeep Manandhar , Franck Hétroy-Wheeler , Stefanie Wuhrer
Computers and Graphics, 2016, Shape Modeling International 2016, 58, pp.12-22. ⟨10.1016/j.cag.2016.05.018⟩
Journal articles hal-01318763v1
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A Hierarchical Approach for Regular Centroidal Voronoi Tessellations

Li Wang , Franck Hétroy-Wheeler , Edmond Boyer
Computer Graphics Forum, 2016, 35 (1), pp.152-165. ⟨10.1111/cgf.12716⟩
Journal articles hal-01185210v1
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Just Noticeable Distortion Profile for Flat-Shaded 3D Mesh Surfaces

Georges Nader , Kai Wang , Franck Hétroy-Wheeler , Florent Dupont
IEEE Transactions on Visualization and Computer Graphics, 2016, 22 (11), pp.2423-2436. ⟨10.1109/TVCG.2015.2507578⟩
Journal articles hal-01242271v1
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Visual Contrast Sensitivity and Discrimination for 3D Meshes and their Applications

Georges Nader , Kai Wang , Franck Hétroy-Wheeler , Florent Dupont
Computer Graphics Forum, 2016, 35 (7), pp.497-506. ⟨10.1111/cgf.13046⟩
Journal articles hal-01376275v1
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Segmentation of tree seedling point clouds into elementary units

Franck Hétroy-Wheeler , Eric Casella , Dobrina Boltcheva
International Journal of Remote Sensing, 2016, 37 (13), pp.2881-2907. ⟨10.1080/01431161.2016.1190988⟩
Journal articles hal-01285419v1
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Segmentation of temporal mesh sequences into rigidly moving components

Romain Arcila , Cédric Cagniart , Franck Hétroy , Edmond Boyer , Florent Dupont et al.
Graphical Models, 2013, 75 (1), pp.10-22. ⟨10.1016/j.gmod.2012.10.004⟩
Journal articles hal-00749302v1
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An iterative algorithm for homology computation on simplicial shapes

Dobrina Boltcheva , David Canino , Sara Merino Aceituno , Jean-Claude Léon , Leila de Floriani et al.
Computer-Aided Design, 2011, Solid and Physical Modeling 2011, 43 (11), pp.1457-1467. ⟨10.1016/j.cad.2011.08.015⟩
Journal articles hal-00644410v2
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Mesh repair with user-friendly topology control

Franck Hétroy , Stéphanie Rey , Carlos Andujar , Pere Brunet , Alvar Vinacua et al.
Computer-Aided Design, 2011, 43 (1), pp.101-113. ⟨10.1016/j.cad.2010.09.012⟩
Journal articles inria-00523005v1
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Animating Quadrupeds: Methods and Applications

Ljiljana Skrba , Lionel Reveret , Franck Hétroy , Marie-Paule Cani , Carol O'Sullivan et al.
Computer Graphics Forum, 2009, 28 (6), pp.1541-1560. ⟨10.1111/j.1467-8659.2008.01312.x⟩
Journal articles inria-00365340v1
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Topological Quadrangulations of Closed Triangulated Surfaces using the Reeb Graph

Franck Hétroy , Dominique Attali
Graphical Models, 2003, Special issue: Discrete Topology and Geometry for Image and Object Representation, 65 (1-3), pp.131-148
Journal articles inria-00001143v1
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Multi-scale Space-time Registration of Growing Plants

Haolin Pan , Franck Hétroy-Wheeler , Julie Charlaix , David Colliaux
The 9th International Conference on 3D Vision (3DV), Dec 2021, Londres, United Kingdom
Conference papers hal-03402870v1

High-precision 3D segmentation of plants combining spectral clustering and quotient graph techniques: a multi-level approach

Katia Mirande , Franck Hétroy-Wheeler , Christophe Godin
9th International Conference on Functional-Structural Plant Models, 2020, En ligne, France
Conference papers hal-03245673v1

Geometric models for plant leaf area estimation from 3D point clouds: a comparative study

Mélinda Boukhana , Joris Ravaglia , Franck Hetroy-Wheeler , Frédéric Larue , Benoit de Solan et al.
Journées Françaises d'Informatique Graphique, Nov 2020, Nancy, France
Conference papers hal-03256446v1

Sensitivity analysis of an automated processing chain and uncertainty in the prediction of tree above ground biomass from TLS data

Eric Casella , Romain Rombourg , Pasi Raumonen , Franck Hetroy-Wheeler , Markku Åkerblom et al.
3D Tree Models for Forest Dynamics, Jan 2020, Helsinki, Finland
Conference papers hal-02374414v1
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Analyzing Clothing Layer Deformation Statistics of 3D Human Motions

Jinlong Yang , Jean-Sébastien Franco , Franck Hetroy-Wheeler , Stefanie Wuhrer
ECCV 2018 - European Conference on Computer Vision, Sep 2018, Munich, Germany. pp.245-261, ⟨10.1007/978-3-030-01234-2_15⟩
Conference papers hal-01763706v2
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Estimation of Human Body Shape in Motion with Wide Clothing

Jinlong Yang , Jean-Sébastien Franco , Franck Hétroy-Wheeler , Stefanie Wuhrer
ECCV 2016 - European Conference on Computer Vision 2016, Oct 2016, Amsterdam, Netherlands. pp.439-454, ⟨10.1007/978-3-319-46493-0_27⟩
Conference papers hal-01344795v4
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Computing temporal alignments of human motion sequences in wide clothing using geodesic patches

Aurela Shehu , Jinlong Yang , Jean-Sébastien Franco , Franck Hétroy-Wheeler , Stefanie Wuhrer et al.
3DV 2016 - International Conference on 3D Vision 2016, Oct 2016, Stanford, United States. pp.185-193, ⟨10.1109/3DV.2016.27⟩
Conference papers hal-01367791v1
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On Volumetric Shape Reconstruction from Implicit Forms

Li Wang , Franck Hétroy-Wheeler , Edmond Boyer
ECCV 2016 - European Conference on Computer Vision, Oct 2016, Amsterdam, Netherlands. ⟨10.1007/978-3-319-46487-9_11⟩
Conference papers hal-01349059v1

A comprehensive sensitivity analysis of forest tree mock-up reconstruction methods from phase-shift based tLiDAR point-cloud data

Eric Casella , Pasi Raumonen , Romain Rombourg , Franck Hétroy-Wheeler , Helen Mckay et al.
International Conference on Functional-Structural Plant Growth Modeling, Simulation, Visualization and Applications (FSPMA), Dr Xiujuan Wang, Nov 2016, Qingdao, China
Conference papers hal-01399491v1

Modèle Perceptuel pour la Détection du Seuil de Visibilité des Distorsions sur un Maillage 3D

Georges Nader , Kai Wang , Franck Hétroy-Wheeler , Florent Dupont
28èmes journées de l’Association Française en Informatique Graphique, Nov 2015, Lyon, France
Conference papers hal-01245373v1
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A spectral clustering approach of vegetation components for describing plant topology and geometry from terrestrial waveform LiDAR data

Dobrina Boltcheva , Eric Casella , Rémy Cumont , Franck Hétroy
FSPM2013 - 7th International Conference on Functional-Structural Plant Models, Jun 2013, Saariselkä, Finland
Conference papers hal-00817508v1
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Automatic localization and quantification of intracranial aneurysms

Sahar Hassan , Franck Hétroy , François Faure , Olivier Palombi
CAIP - 14th International Conference on Computer Analysis of Images and Patterns, Aug 2011, Seville, Spain. pp.554-562, ⟨10.1007/978-3-642-23672-3_67⟩
Conference papers inria-00598491v2
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A Framework for motion-based mesh sequence segmentation

Romain Arcila , Kartik S. Buddha , Franck Hétroy , Florence Denis , Florent Dupont et al.
WSCG - International Conference on Computer Graphics, Visualization and Computer Vision, Feb 2010, Plzen, Czech Republic. pp.33-40
Conference papers inria-00440672v1
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Ontology-Guided Mesh Segmentation

Sahar Hassan , Franck Hétroy , Olivier Palombi
FOCUS K3D Conference on Semantic 3D Media and Content, FOCUS K3D, Feb 2010, Sophia Antipolis, France. pp.5
Conference papers inria-00450907v2
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Segmentation de maillage guidée par une ontologie

Sahar Hassan , Franck Hétroy , Olivier Palombi
AFIG 2009 - 22e Journées de l'Association Française d'Informatique Graphique, Nov 2009, Arles, France
Conference papers inria-00436610v2
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Simple flexible skinning based on manifold modeling

Franck Hétroy , Cédric Gérot , Lin Lu , Boris Thibert
GRAPP 2009 - International Conference on Computer Graphics Theory and Applications, Feb 2009, Lisbonne, Portugal. pp.259-265
Conference papers inria-00339413v2
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État de l'art des méthodes de segmentation de séquences de maillages et proposition d'une classification

Romain Arcila , Franck Hétroy , Florent Dupont
CORESA'09 - COdage et REprésentation des Signaux Audiovisuels, Mar 2009, Toulouse, France
Conference papers inria-00435858v1
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Propriétés topologiques pour la modélisation géométrique de domaines d'études comportant des singularités non-variétés

Jean-Claude Léon , Franck Hétroy , Leila de Floriani
CFM 2009 - 19ème Congrès Français de Mécanique, Aug 2009, Marseille, France
Conference papers hal-03391279v3
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Classification of non-manifold singularities from transformations of 2-manifolds

Jean-Claude Léon , Leila de Floriani , Franck Hétroy
SMI 2009 - IEEE International Conference on Shape Modeling and Applications, Jun 2009, Beijing, China. pp.179-184, ⟨10.1109/SMI.2009.5170146⟩
Conference papers inria-00365338v2
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Quadruped Animation

Ljiljana Skrba , Lionel Reveret , Franck Hétroy , Marie-Paule Cani , Carol O'Sullivan et al.
Eurographics '2008 - 29th annual conference of the European Association for Computer Graphics, Apr 2008, Hersonissos, Creete, Greece. pp.7-23
Conference papers inria-00331715v2
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Harmonic Skeleton for Realistic Character Animation

Grégoire Aujay , Franck Hétroy , Francis Lazarus , Christine Depraz
SCA 2007 - ACM-SIGGRAPH/Eurographics Symposium on Computer Animation, Aug 2007, San Diego, Californie, United States. pp.151-160, ⟨10.2312/SCA/SCA07/151-160⟩
Conference papers inria-00151606v2
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Construction automatique d'un squelette pour l'animation de personnages

Grégoire Aujay , Franck Hétroy , Francis Lazarus
19èmes Journées de l'Association Française d'Informatique Graphique (AFIG), Nov 2006, Bordeaux, France
Conference papers inria-00110047v3
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Constriction Computation using Surface Curvature

Franck Hétroy
Eurographics (short paper), Aug 2005, Dublin, Ireland. pp.1-4
Conference papers inria-00001135v2
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Detection of Constrictions on Closed Polyhedral Surfaces

Franck Hétroy , Dominique Attali
Eurographics/IEEE TCVG Visualisation Symposium, G.-P. Bonneau, S. Hahmann, C. Hansen, May 2003, Grenoble, France, France. pp.67-74
Conference papers inria-00001144v1
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From a Closed Piecewise Geodesic to a Constriction on a Closed Triangulated Surface

Franck Hétroy , Dominique Attali
Pacific Graphics Conference on Computer Graphics and Applications, J. Rokne, Oct 2003, Canmore, Alberta, Canada, France. pp.394-398
Conference papers inria-00001145v1

Topological Quadrangulations of Closed Triangulated Surfaces Using the Reeb Graph

Franck Hétroy , Dominique Attali
Digital Geometry for Computer Imagery (DGCI), 2002, Bordeaux, France. pp.57-68, ⟨10.1007/3-540-45986-3_5⟩
Conference papers hal-02375564v1

A point-cloud classification method to assess biases in tLiDAR-based forest canopy gap fraction estimates

Romain Rombourg , Eric Casella , Franck Hétroy-Wheeler , Helen Mckay
International Conference on Functional-Structural Plant Growth Modeling, Simulation, Visualization and Applications (FSPMA), Nov 2016, Qingdao, China. 2016
Conference poster hal-01399489v1
Image document

Segmentation and Skeleton Methods for Digital Shape Understanding

Franck Hétroy-Wheeler
Graphics [cs.GR]. Université Grenoble Alpes, 2015
Habilitation à diriger des recherches tel-01246006v2