Jacques-Olivier Lachaud Professeur d'Informatique à l'Université Savoie Mont Blanc

Publications

Article dans une revue (41)

New Properties for Full Convex Sets and Full Convex Hulls Fabien Feschet,Jacques-Olivier Lachaud Journal of Mathematical Imaging and Vision, 2025, 67 (1), pp.8. ⟨10.1007/s10851-024-01225-7⟩ Article dans une revue hal-04984051v1
Recognition of Pieces of Arithmetic Hyperplanes Using the Stern–Brocot Tree Bastien Laboureix,Alban Mattei,Jacques-Olivier Lachaud,Isabelle Debled-Rennesson Journal of Mathematical Imaging and Vision, 2025, 67 (2), pp.15. ⟨10.1007/S10851-025-01229-X⟩ Article dans une revue hal-05452467v1
Corrected Laplace–Beltrami Operators for Digital Surfaces Colin Weill-Duflos,David Coeurjolly,Jacques-Olivier Lachaud Journal of Mathematical Imaging and Vision, 2025, 67 (2), pp.11. ⟨10.1007/s10851-024-01226-6⟩ Article dans une revue hal-04913546v1
2D Bijective rigid rotation: quantitative and qualitative study Stéphane Breuils,David Coeurjolly,Jacques-Olivier Lachaud Journal of Mathematical Imaging and Vision, 2025, 67 (4), pp.37. ⟨10.1007/s10851-025-01252-y⟩ Article dans une revue hal-05125278v1
Delaunay property and proximity results of the L-algorithm for digital plane probing Jui-Ting Lu,Tristan Roussillon,Jacques-Olivier Lachaud,David Coeurjolly Theoretical Computer Science, 2024, 1011, ⟨10.1016/j.tcs.2024.114719⟩ Article dans une revue hal-04671533v1
Lightweight Curvature Estimation on Point Clouds with Randomized Corrected Curvature Measures Jacques-Olivier Lachaud,David Coeurjolly,Céline Labart,Pascal Romon,Boris Thibert Computer Graphics Forum, 2023, 42 (5), pp.e14910. ⟨10.1111/cgf.14910⟩ Article dans une revue hal-04140178v1
Joint optimization of distortion and cut location for mesh parameterization using an Ambrosio-Tortorelli functional Colin Weill-Duflos,David Coeurjolly,Fernando de Goes,Jacques-Olivier Lachaud Computer Aided Geometric Design, 2023, Proceedings of GMP 2023, ⟨10.1016/j.cagd.2023.102231⟩ Article dans une revue hal-04140452v1
An Envelope Operator for Full Convexity to Define Polyhedral Models in Digital Spaces Fabien Feschet,Jacques-Olivier Lachaud Journal of Mathematical Imaging and Vision, 2023, 65 (5), pp.754-769. ⟨10.1007/s10851-023-01155-w⟩ Article dans une revue hal-04432223v1
Corrected Curvature Measures Jacques-Olivier Lachaud,Pascal Romon,Boris Thibert Discrete and Computational Geometry, 2022, 68, pp.477-524. ⟨10.1007/s00454-022-00399-4⟩ Article dans une revue hal-02193774v1
An Alternative Definition for Digital Convexity Jacques-Olivier Lachaud Journal of Mathematical Imaging and Vision, 2022, 64 (7), pp.718-735. ⟨10.1007/s10851-022-01076-0⟩ Article dans une revue hal-04735268v1
An Elastica-driven Digital Curve Evolution Model for Image Segmentation Daniel Antunes,Jacques-Olivier Lachaud,Hugues Talbot Journal of Mathematical Imaging and Vision, 2021, 63 (1), pp.1-17. ⟨10.1007/s10851-020-00983-4⟩ Article dans une revue hal-03144926v1
Digital surface regularization with guarantees David Coeurjolly,Jacques-Olivier Lachaud,Pierre Gueth IEEE Transactions on Visualization and Computer Graphics, 2021, 27 (6), pp.2896--2907. ⟨10.1109/tvcg.2021.3055242⟩ Article dans une revue hal-03126733v1
Interpolated corrected curvature measures for polygonal surfaces Jacques-Olivier Lachaud,Pascal Romon,Boris Thibert,David Coeurjolly Computer Graphics Forum, 2020, 39 (5), pp.41-54. ⟨10.1111/cgf.14067⟩ Article dans une revue hal-02891465v1
An Optimized Framework for Plane-Probing Algorithms Jacques-Olivier Lachaud,Jocelyn Meyron,Tristan Roussillon Journal of Mathematical Imaging and Vision, 2020, 62, pp.718-736. ⟨10.1007/s10851-020-00965-6⟩ Article dans une revue hal-02879784v1
Combining Voxel and Normal Predictions for Multi-View 3D Sketching Johanna Delanoy,David Coeurjolly,Jacques-Olivier Lachaud,Adrien Bousseau Computers and Graphics, 2019, Proceedings of Shape Modeling International 2019, 82, pp.65--72. ⟨10.1016/j.cag.2019.05.024⟩ Article dans une revue hal-02141469v1
Laplace–Beltrami Operator on Digital Surfaces Thomas Caissard,David Coeurjolly,Jacques-Olivier Lachaud,Tristan Roussillon Journal of Mathematical Imaging and Vision, 2019, 61 (3), pp.359-379. ⟨10.1007/s10851-018-0839-4⟩ Article dans une revue hal-01717849v3
Phase-field modelling and computing for a large number of phases Elie Bretin,Roland Denis,Jacques-Olivier Lachaud,Edouard Oudet ESAIM: Mathematical Modelling and Numerical Analysis, 2019, 53 (3), pp.805 - 832. ⟨10.1051/m2an/2018075⟩ Article dans une revue hal-01628403v1
Analytical Description of Digital Intersections : Minimal parameters and Multiscale representation Mouhammad Said,Jacques-Olivier Lachaud Theoretical Computer Science, 2019, 784, pp.99-112. ⟨10.1016/j.tcs.2019.03.042⟩ Article dans une revue hal-04735358v1
Mumford-Shah Mesh Processing using the Ambrosio-Tortorelli Functional Nicolas Bonneel,David Coeurjolly,Pierre Gueth,Jacques-Olivier Lachaud Computer Graphics Forum, 2018, Proceedings of Pacific Graphics 2018, 37 (7), pp.75-85. ⟨10.1111/cgf.13549⟩ Article dans une revue hal-01870901v1
Two Plane-Probing Algorithms for the Computation of the Normal Vector to a Digital Plane Jacques-Olivier Lachaud,Xavier Provençal,Tristan Roussillon Journal of Mathematical Imaging and Vision, 2017, 59 (1), pp.23 - 39. ⟨10.1007/s10851-017-0704-x⟩ Article dans une revue hal-01621516v1
An output-sensitive algorithm to compute the normal vector of a digital plane Jacques-Olivier Lachaud,Xavier Provençal,Tristan Roussillon Theoretical Computer Science, 2016, 624, pp.73-88. ⟨10.1016/j.tcs.2015.11.021⟩ Article dans une revue hal-01294966v1
Properties of Gauss digitized sets and digital surface integration Jacques-Olivier Lachaud,Boris Thibert Journal of Mathematical Imaging and Vision, 2016, 54 (2), pp.162-180. ⟨10.1007/s10851-015-0595-7⟩ Article dans une revue hal-01070289v2
Piecewise smooth reconstruction of normal vector field on digital data David Coeurjolly,Marion Foare,Pierre Gueth,Jacques-Olivier Lachaud Computer Graphics Forum, 2016, Proc. Pacific Graphics 2016, 35 (7) Article dans une revue hal-01355291v1
Scale-space Feature Extraction on Digital Surfaces Jérémy Levallois,David Coeurjolly,Jacques-Olivier Lachaud Computers and Graphics, 2015, 51 (C), pp. 177-189 ⟨10.1016/j.cag.2015.05.023⟩ Article dans une revue hal-01149102v2
Robust Geometry Estimation using the Generalized Voronoi Covariance Measure Louis Cuel,Jacques-Olivier Lachaud,Quentin Mérigot,Boris Thibert SIAM Journal on Imaging Sciences, 2015, 8 (2), pp.1293-1314. ⟨10.1137/140977552⟩ Article dans une revue hal-01058145v2
Meaningful Scales Detection: an Unsupervised Noise Detection Algorithm for Digital Contours Bertrand Kerautret,Jacques-Olivier Lachaud Image Processing On Line, 2014, Special Issue on Discrete Geometry (DGCI 2011), 4, pp.18. ⟨10.5201/ipol.2014.75⟩ Article dans une revue hal-01112936v1
Multigrid convergent principal curvature estimators in digital geometry David Coeurjolly,Jacques-Olivier Lachaud,Jérémy Levallois Computer Vision and Image Understanding, 2014, 129 (1), pp.27-41. ⟨10.1016/j.cviu.2014.04.013⟩ Article dans une revue hal-01119434v1
Extraction of Connected Region Boundary in Multidimensional Images David Coeurjolly,Bertrand Kerautret,Jacques-Olivier Lachaud Image Processing On Line, 2014, 4, pp. 30-43. ⟨10.5201/ipol.2014.74⟩ Article dans une revue hal-01112943v1
A combined multi-scale/irregular algorithm for the vectorization of noisy digital contours Antoine Vacavant,Tristan Roussillon,Bertrand Kerautret,Jacques-Olivier Lachaud Computer Vision and Image Understanding, 2013, 117 (4), pp.438--450. ⟨10.1016/j.cviu.2012.07.006⟩ Article dans une revue istex hal-00943821v1
Implementation of integral based digital curvature estimators in DGtal David Coeurjolly,Jacques-Olivier Lachaud,Jérémy Levallois imagen-a, 2013, 5, 3, pp.27-31 Article dans une revue hal-01339204v1
Meaningful Scales Detection along Digital Contours for Unsupervised Local Noise Estimation Bertrand Kerautret,Jacques-Olivier Lachaud IEEE Transactions on Pattern Analysis and Machine Intelligence, 2012, 34 (12), pp.2379--2392. ⟨10.1109/TPAMI.2012.38⟩ Article dans une revue hal-00780689v1
Fully Deformable 3D Digital Partition Model with Topological Control Guillaume Damiand,Alexandre Dupas,Jacques-Olivier Lachaud Pattern Recognition Letters, 2011, 32 (9), pp.1374-1383. ⟨10.1016/j.patrec.2010.09.005⟩ Article dans une revue hal-00591065v1
Two linear-time algorithms for computing the minimum length polygon of a digital contour Jacques-Olivier Lachaud,Xavier Provençal Discrete Applied Mathematics, 2011, 159 (18), pp.2229-2250. ⟨10.1016/j.dam.2011.08.002⟩ Article dans une revue hal-00943824v1
Comparison and improvement of tangent estimators on digital curves François de Vieilleville,Jacques-Olivier Lachaud Pattern Recognition, 2009, 42 (8), pp.1693-1707. ⟨10.1016/j.patcog.2008.11.034⟩ Article dans une revue istex hal-00396356v1
Curvature based corner detector for discrete, noisy and multi-scale contours Bertrand Kerautret,Jacques-Olivier Lachaud,Benoît Naegel International Journal of Shape Modeling, 2008, 14 (2), pp.127-145. ⟨10.1142/S0218654308001117⟩ Article dans une revue inria-00437575v1
Equivalence between Closed Connected n-G-Maps without Multi-Incidence and n-Surfaces Sylvie Alayrangues,X. Daragon,Jacques-Olivier Lachaud,Pascal Lienhardt Journal of Mathematical Imaging and Vision, 2008, Vol.32, p.1-22. ⟨10.1007/s10851-008-0084-3⟩ Article dans une revue istex hal-00340945v1
Curvature Estimation along Noisy Digital Contours by Approximate Global Optimization Bertrand Kerautret,Jacques-Olivier Lachaud Pattern Recognition, 2008, j.patcog.2008.11.013, 42 (10), pp.2265--2278 Article dans une revue inria-00345783v1
Lyndon + Christoffel = digitally convex Srecko Brlek,Jacques-Olivier Lachaud,Xavier Provençal,Christophe Reutenauer Pattern Recognition, 2008, 42 (10), pp.2239-2246. ⟨10.1016/j.patcog.2008.11.010⟩ Article dans une revue istex hal-00395219v1
Fast, Accurate and Convergent Tangent Estimation on Digital Contours Jacques-Olivier Lachaud,François de Vieilleville,Anne Vialard Image and Vision Computing, 2007, 25 (10), pp.1572-1587. ⟨10.1016/j.imavis.2006.06.019⟩ Article dans une revue istex hal-00308196v1
Computation of Homology Groups and Generators Samuel Peltier,Sylvie Alayrangues,Laurent Fuchs,Jacques-Olivier Lachaud Computers and Graphics, 2006, 30, pp.62--69. ⟨10.1016/j.cag.2005.10.011⟩ Article dans une revue istex hal-00308013v1
Deformable Model with a Complexity Independent from Image Resolution Jacques-Olivier Lachaud,Benjamin Taton Computer Vision and Image Understanding, 2005, 99, pp.453-475 Article dans une revue hal-00308195v1

Communication dans un congrès (61)

Convex and Concave Decomposition of Digitized Shapes Using Plane Probing and Visibility Jacques-Olivier Lachaud,Tristan Roussillon International Conference on Discrete Geometry and Mathematical Morphology, Wilkinson, M.H.F., Kosinka, J., Nov 2025, Groningen, Netherlands. pp.44-59, ⟨10.1007/978-3-032-09544-2_4⟩ Communication dans un congrès hal-05373501v1
Fast and exact visibility on digitized shapes and application to saliency-aware normal estimation Romain Negro,Jacques-Olivier Lachaud DGMM 2025: 4th International Conference on Discrete Geometry and Mathematical Morphology 2025, Michael Wilkinson; Jiri Kosinka, Nov 2025, Groningen, France. pp.31-43 Communication dans un congrès hal-05528852v1
Geometry of Gauss digitized convex shapes Jacques-Olivier Lachaud,David Coeurjolly,Tristan Roussillon 4th International Joint Conference, DGMM 2025, Nov 2025, Groningen, Netherlands, Netherlands Communication dans un congrès hal-05355892v1
New Characterizations of Full Convexity Fabien Feschet,Jacques-Olivier Lachaud International Conference on Discrete Geometry and Mathematical Morphology, Apr 2024, Firenze, Italy, Italy. pp.41-53, ⟨10.1007/978-3-031-57793-2_4⟩ Communication dans un congrès hal-04735219v1
Digital Calculus Frameworks and Comparative Evaluation of their Laplace-Beltrami operators ⋆ Colin Weill-Duflos,David Coeurjolly,Jacques-Olivier Lachaud IAPR Third International Conference on Discrete Geometry and Mathematical Morphology, Apr 2024, Florence, Italy Communication dans un congrès hal-04486655v1
Construction of Fast and Accurate 2D Bijective Rigid Transformation Stéphane Breuils,David Coeurjolly,Jacques-Olivier Lachaud IAPR Third International Conference on Discrete Geometry and Mathematical Morphology, Apr 2024, Florence, Italy Communication dans un congrès hal-04486661v1
Full Convexity for Polyhedral Models in Digital Spaces Fabien Feschet,Jacques-Olivier Lachaud DGMM 2022 - IAPR Second International Conference on Discrete Geometry and Mathematical Morphology, Étienne Baudrier, Benoît Naegel, Adrien Krähenbühl, Mohamed Tajine, Oct 2022, Strasbourg, France. pp.98-109, ⟨10.1007/978-3-031-19897-7_9⟩ Communication dans un congrès hal-03823832v1
A Simple Discrete Calculus for Digital Surfaces David Coeurjolly,Jacques-Olivier Lachaud Second International Conference on Discrete Geometry and Mathematical Morphology, Oct 2022, Strasbourg, France Communication dans un congrès hal-03719330v1
A Maximum-Flow Model for Digital Elastica Shape Optimization Daniel Martins Antunes,Jacques-Olivier Lachaud,Hugues Talbot Discrete Geometry Mathematical Morphology 2021, May 2021, Uppsala (Suède), Sweden. pp.429-440, ⟨10.1007/978-3-030-76657-3_31⟩ Communication dans un congrès hal-04580405v1
An alternative definition for digital convexity Jacques-Olivier Lachaud International Conference on Discrete Geometry and Mathematical Morphology, 2021, Uppsala, Sweden. pp.269-282, ⟨10.1007/978-3-030-76657-3_19⟩ Communication dans un congrès hal-04735331v1
Geometric Total Variation for Image Vectorization, Zooming and Pixel Art Depixelizing Bertrand Kerautret,Jacques-Olivier Lachaud Asian Conference on Pattern Recognition, Nov 2019, Auckland (Nouvelle Zelande), New Zealand. ⟨10.1007/978-3-030-41404-7_28⟩ Communication dans un congrès hal-02895108v1
Digital Plane Recognition with Fewer Probes Tristan Roussillon,Jacques-Olivier Lachaud 21st IAPR International Conference on Discrete Geometry for Computer Imagery, Couprie M.; Cousty J.; Kenmochi Y.; Mustafa N., Mar 2019, Marne-la-Vallée, France. pp.380-393, ⟨10.1007/978-3-030-14085-4_30⟩ Communication dans un congrès hal-02087529v1
Digital Curvature Evolution Model for Image Segmentation Daniel Antunes,Jacques-Olivier Lachaud,Hugues Talbot DGCI 2019 - International Conference on Discrete Geometry for Computer Imagery, Mar 2019, Noisy-le-Grand, France. pp.15-26, ⟨10.1007/978-3-030-14085-4_2⟩ Communication dans un congrès hal-02426946v1
Regularization of Voxel Art David Coeurjolly,Pierre Gueth,Jacques-Olivier Lachaud SIGGRAPH Talk 2018, Aug 2018, Vancouver, Canada. ⟨10.1145/3214745.3214748⟩ Communication dans un congrès hal-01807713v1
Heat kernel Laplace-Beltrami operator on digital surfaces Thomas Caissard,David Coeurjolly,Jacques-Olivier Lachaud,Tristan Roussillon 20th International Conference on Discrete Geometry for Computer Imagery, Walter G. Kropatsch, Ines Janusch and Nicole M. Artner, Sep 2017, Vienna, Austria. pp.241--253 Communication dans un congrès hal-01575544v1
Digital surface regularization by normal vector field alignment David Coeurjolly,Pierre Gueth,Jacques-Olivier Lachaud 20th International Conference on Discrete Geometry for Computer Imagery, 2017, Vienna, Austria. pp.197--209, ⟨10.1007/978-3-319-66272-5_17⟩ Communication dans un congrès hal-01543007v1
On the Implementation of Centerline Extraction Based on Confidence Vote in Accumulation Map Bertrand Kerautret,Adrien Krähenbühl,Isabelle Debled-Rennesson,Jacques-Olivier Lachaud RRPR 2016 1st Workshop on Reproducible Research in Pattern Recognition, Bertrand Kerautret; Miguel Colom; Pascal Monasse, Dec 2016, Cancùn, Mexico. pp.116-130, ⟨10.1007/978-3-319-56414-2_9⟩ Communication dans un congrès hal-01571434v1
Computation of the normal vector to a digital plane by sampling signicant points Jacques-Olivier Lachaud,Xavier Provençal,Tristan Roussillon 19th IAPR International Conference on Discrete Geometry for Computer Imagery, Apr 2016, Nantes, France. pp.194-205, ⟨10.1007/978-3-319-32360-2_15⟩ Communication dans un congrès hal-01621492v1
Image restoration and segmentation using the Ambrosio-Tortorelli functional and discrete calculus Marion Foare,Jacques-Olivier Lachaud,Hugues Talbot International Conference on Pattern Recognition (ICPR 2016), Dec 2016, Cancun, Mexico. ⟨10.1109/ICPR.2016.7899836⟩ Communication dans un congrès hal-01379993v1
Analyse géométrique d'objets tubulaires 3D basée sur l'accumulation de normales Bertrand Kerautret,Adrien Krähenbühl,Isabelle Debled-Rennesson,Jacques-Olivier Lachaud RFIA 2016 - Reconnaissance des Formes et l'Intelligence Artificielle, Jun 2016, Clermont Ferrand, France Communication dans un congrès hal-01359558v1
Centerline Detection on Partial Mesh Scans by Confidence Vote in Accumulation Map Bertrand Kerautret,Adrien Krähenbühl,Isabelle Debled-Rennesson,Jacques-Olivier Lachaud ICPR 2016 - IAPR International Conference on Pattern Recognition, Dec 2016, Cancùn, Mexico. ⟨10.1109/ICPR.2016.7899829⟩ Communication dans un congrès hal-01435271v1
Laplace-Beltrami operator on Digital Curves Thomas Caissard,David Coeurjolly,Tristan Roussillon,Jacques-Olivier Lachaud JFIG, Nov 2016, Grenoble, France Communication dans un congrès hal-01497255v1
Interactive Curvature Tensor Visualization on Digital Surfaces Hélène Perrier,Jérémy Levallois,David Coeurjolly,Jean-Philippe Farrugia,Jean-Claude Iehlet al. DGCI2016, Apr 2016, Nantes, France. pp.282--294, ⟨10.1007/978-3-319-32360-2_22⟩ Communication dans un congrès hal-01262663v1
3D Geometric Analysis of Tubular Objects based on Surface Normal Accumulation Bertrand Kerautret,Adrien Krähenbühl,Isabelle Debled-Rennesson,Jacques-Olivier Lachaud 18th International Conference on Image Analysis and Processing, Sep 2015, Genova, Italy. ⟨10.1007/978-3-319-23231-7_29⟩ Communication dans un congrès hal-01139374v2
Precise Cross-Section Estimation on Tubular Organs Grélard Florent,Fabien Baldacci,Anne Vialard,Jacques-Olivier Lachaud Computer Analysis of Images and Patterns, 2015, valetta, Malta Communication dans un congrès hal-01437076v1
Parameter-free and Multigrid Convergent Digital Curvature Estimators Jérémy Levallois,David Coeurjolly,Jacques-Olivier Lachaud 18th International Conference on Discrete Geometry for Computer Imagery (DGCI 2014), Sep 2014, Siena, Italy. pp.162-175, ⟨10.1007/978-3-319-09955-2_14⟩ Communication dans un congrès hal-01118476v1
Convergence asymptotique du tenseur de courbure en géométrie discrète Jérémy Levallois,David Coeurjolly,Jacques-Olivier Lachaud 26èmes Journées de l’Association Française d’Informatique Graphique, du chapitre français d’Eurographics et du Groupement de Recherche IG , Nov 2013, Limoges, France. pp.1-10 Communication dans un congrès hal-01339284v1
Integral based Curvature Estimators in Digital Geometry David Coeurjolly,Jacques-Olivier Lachaud,Jérémy Levallois 17th International Conference on Discrete Geometry for Computer Imagery (DGCI 2013), Mar 2013, Seville (Spain), Spain. pp.215-227 Communication dans un congrès hal-00926164v1
Détection d'épaisseur significative sur une courbe polygonale Bertrand Kerautret,Jacques-Olivier Lachaud,Mouhammad Said RFIA 2012 (Reconnaissance des Formes et Intelligence Artificielle), Jan 2012, Lyon, France. pp.978-2-9539515-2-3 Communication dans un congrès hal-00656573v1
Tangent estimation along 3D digital curves Michal Postolski,Marcin Janaszewski,Yukiko Kenmochi,Jacques-Olivier Lachaud 21st International Conference on Pattern Recognition (ICPR 2012), Nov 2012, Tsukuba, Japan. pp.2079-2082 Communication dans un congrès hal-00790710v1
Combining Topological Maps, Multi-Label Simple Points, and Minimum-Length Polygons for Efficient Digital Partition Model Guillaume Damiand,Alexandre Dupas,Jacques-Olivier Lachaud International Workshop on Combinatorial Image Analysis, May 2011, Madrid, Spain. pp.56-69, ⟨10.1007/978-3-642-21073-0_8⟩ Communication dans un congrès hal-00597507v1
Circular arc reconstruction of digital contours with chosen Hausdorff error Bertrand Kerautret,Jacques-Olivier Lachaud,Thanh Phuong Nguyen Discrete Geometry for Computer Imagery, Apr 2011, Nancy, France. pp.250--262 Communication dans un congrès hal-00579467v1
Delaunay properties of digital straight segments Tristan Roussillon,Jacques-Olivier Lachaud 16-th IAPR International Conference on Discrete Geometry for Computer Imagery (DGCI) , Apr 2011, Nancy, France. pp.308-319, ⟨10.1007/978-3-642-19867-0_26⟩ Communication dans un congrès hal-01354557v1
Accurate curvature estimation along digital contours with maximal digital circular arcs Tristan Roussillon,Jacques-Olivier Lachaud 14-th International Workshop on Combinatorial Image Analysis (IWCIA), May 2011, Madrid, Spain. pp.43-55, ⟨10.1007/978-3-642-21073-0_7⟩ Communication dans un congrès istex hal-01354558v1
Meaningful Thickness Detection on Polygonal Curve Bertrand Kerautret,Jacques-Olivier Lachaud,Mouhammad Said ICPRAM - International Conference on Pattern Recognition Applications and Methods - 2012, Feb 2012, Vilamoura, Portugal. pp.372--379, ⟨10.5220/0003760903720379⟩ Communication dans un congrès hal-00780710v1
Dynamic Minimum Length Polygon Jacques-Olivier Lachaud,Xavier Provençal International Workshop on Combinatorial Image Analysis, May 2011, Madrid, Spain. pp.208-221 Communication dans un congrès hal-00943828v1
Multi-scale Analysis of Discrete Contours for Unsupervised Noise Detection Bertrand Kerautret,Jacques-Olivier Lachaud 13th International Workshop on Combinatorial Image Analysis - IWCIA2009, Nov 2009, Mexico, Mexico. pp.187-200, ⟨10.1007/978-3-642-10210-3_15⟩ Communication dans un congrès istex hal-00413662v1
Multiscale Discrete Geometry Mouhammad Said,Jacques-Olivier Lachaud,F. Feschet International Conference on Discrete Geometry for Computer Imagery, Sep 2009, Montréal, Québec, Canada. Accepted. To appear Communication dans un congrès hal-00413681v1
Two-linear time algorithms for computing the minimum length polygon of a digital contour Xavier Provençal,Jacques-Olivier Lachaud DGCI'09: Discrete Geometry for Computer Imagery, Sep 2009, Montreal, Canada. pp.104-117, ⟨10.1007/978-3-642-04397-0_10⟩ Communication dans un congrès istex lirmm-00432378v1
Top-Down segmentation of histological images using a digital deformable model François de Vieilleville,Jacques-Olivier Lachaud,Paulette Herlin,Olivier Lezoray,Benoit Plancoulaine International Symposium on Visual Computing, Dec 2009, Las Vegas, United States. pp.327-336, ⟨10.1007/978-3-642-10331-5_31⟩ Communication dans un congrès istex hal-00521058v1
Two linear-time algorithms for computing the minimum length polygon of a digital contour Xavier Provençal,Jacques-Olivier Lachaud International Conference on Discrete Geometry for Computer Imagery, Sep 2009, Montréal, Québec, Canada. Accepted. To appear Communication dans un congrès hal-00413687v1
Digital Deformable Model Simulating Active Contours François de Vieilleville,Jacques-Olivier Lachaud International Conference on Discrete Geometry for Computer Imagery, Sep 2009, Montréal, Québec, Canada. Accepted. To appear Communication dans un congrès hal-00413684v1
Multi-Label Simple Points Definition for 3D Images Digital Deformable Model Alexandre Dupas,Guillaume Damiand,Jacques-Olivier Lachaud 15th IAPR International Conference on Discrete Geometry for Computer Imagery (DGCI2009), Sep 2009, Montréal, Québec, Canada. pp.156-167, ⟨10.1007/978-3-642-04397-0_14⟩ Communication dans un congrès hal-00413691v1
Combinatorial View of Digital Convexity Srecko Brlek,Jacques-Olivier Lachaud,Xavier Provençal Discrete Geometry for Computer Imagery, Apr 2008, Lyon, France. pp.57-68, ⟨10.1007/978-3-540-79126-3_7⟩ Communication dans un congrès hal-00395237v1
Discrete Contour Extraction from Reference Curvature Function Huu Giao Nguyen,Bertrand Kerautret,Pascal Desbarats,Jacques-Olivier Lachaud 4th International Symposium on Advances in Visual Computing - ISVC 2008, 2008, Las Vegas, France. pp.1176-1185, ⟨10.1007/978-3-540-89646-3_117⟩ Communication dans un congrès inria-00345782v1
Robust estimation of curvature along digital contours with global optimization Bertrand Kerautret,Jacques-Olivier Lachaud 14th IAPR International Conference on Discrete Geometry for Computer Imagery - DGCI 2008, 2008, Lyon, France. pp.334-345, ⟨10.1007/978-3-540-79126-3_30⟩ Communication dans un congrès inria-00345779v1
Experimental comparison of continuous and discrete tangent estimators along digital curves François de Vieilleville,Jacques-Olivier Lachaud International Workshop on Combinatorial Image Analysis, Apr 2008, Buffalo, NY, United States. pp.26-37, ⟨10.1007/978-3-540-78275-9⟩ Communication dans un congrès hal-00413631v1
Comparison of Discrete Curvature Estimators and Application to Corner Detection Bertrand Kerautret,Jacques-Olivier Lachaud,Benoît Naegel 4th International Symposium on Advances in Visual Computing - ISVC 2008, 2008, Las Vegas, United States. pp.710-719, ⟨10.1007/978-3-540-89639-5_68⟩ Communication dans un congrès inria-00345781v1
Combinatorial pyramids and discrete geometry for energy-minimizing segmentation Martin Braure de Calignon,Luc Brun,Jacques-Olivier Lachaud Proc. Int. Symposium on Visual Computing (ISVC2006), Nov 2006, Lake Tahoe, Nevada, United States. pp.306--315, ⟨10.1007/11919629_32⟩ Communication dans un congrès hal-00308162v1
Convex shapes and convergence speed of discrete tangent estimators Jacques-Olivier Lachaud,François de Vieilleville Proc. Int. Symposium on Visual Computing (ISVC2006), Nov 2006, Lake Tahoe, Nevada, United States. pp.688-697, ⟨10.1007/11919629⟩ Communication dans un congrès hal-00308337v1
Revisiting Digital Straight Segment Recognition F. de Vieilleville,Jacques-Olivier Lachaud Proc. Int. Conf. Discrete Geometry for Computer Imagery (DGCI2006), Oct 2006, Szeged, Hungary. pp.355-366, ⟨10.1007/11907350_30⟩ Communication dans un congrès hal-00308338v1
Maximal digital straight segments and convergence of discrete geometric estimators F. de Vieilleville,Jacques-Olivier Lachaud,F. Feschet Proc. 14th Scandinavian Conference on Image Analysis (SCIA2005), 2005, Joensuu, Finland. pp.988--1003, ⟨10.1007/11499145_100⟩ Communication dans un congrès hal-00308336v1
Computation of Homology Groups and Generators Samuel Peltier,Sylvie Alayrangues,Laurent Fuchs,Jacques-Olivier Lachaud Discrete Geometry for Computer Imagery, Apr 2005, Poitiers, France. pp.195--205 Communication dans un congrès hal-00308012v1
Analysis and comparative evaluation of discrete tangent estimators Jacques-Olivier Lachaud,Anne Vialard,François de Vieilleville Proc. Int. Conf. Discrete Geometry for Computer Imagery (DGCI2005), 2005, Poitiers, France. pp.140--251, ⟨10.1007/b135490⟩ Communication dans un congrès hal-00308199v1
Resolution Independent Deformable Model Jacques-Olivier Lachaud,Benjamin Taton Proc. 17th int. Conf. on Pattern Recognition (ICPR2004), Cambridge, United Kingdom, 23-26 August, 2004, United Kingdom. pp.237-240 Communication dans un congrès hal-00308200v1
Geometric measures on arbitrary dimensional digital surfaces Jacques-Olivier Lachaud,Anne Vialard Proc. Int. Conf. Discrete Geometry for Computer Imagery (DGCI2003), Napoli, Italy, 2003, Italy. pp.434--443 Communication dans un congrès hal-00308198v1
Coding cells of digital spaces: a framework to write generic digital topology algorithms Jacques-Olivier Lachaud Proc. Int. Work. Combinatorial Image Analysis (IWCIA2003), 2003, Palermo, Italy. pp.337-348, ⟨10.1016/S1571-0653(04)00497-4⟩ Communication dans un congrès hal-00308202v1
Deformable Model with Adaptive Mesh and Automated Topology Changes Jacques-Olivier Lachaud,Benjamin Taton Proc. 4th int. Conf. 3-D Digital Imaging and Modeling (3DIM2003), 2003, Banff, Alberta, Canada. pp.12- 19 Communication dans un congrès hal-00308201v1
Deformable Model with non-Euclidean Metrics Benjamin Taton,Jacques-Olivier Lachaud Proc. 7th European Conference on Computer Vision (ECCV2002), 2002, Copenhagen, Denmark. pp.438-453, ⟨10.1007/3-540-47977-5_29⟩ Communication dans un congrès istex hal-00307965v1
Modèle Déformable en Métrique non-euclidienne Benjamin Taton,Jacques-Olivier Lachaud Actes du 13ème Congrès Francophone de Reconnaissance des Formes et Intelligence Artificielle (RFIA02), Jan 2002, France. pp.425-434 Communication dans un congrès hal-00307964v1
Discrete deformable boundaries for the segmentation of multidimensional images Jacques-Olivier Lachaud,Anne Vialard Proc. 4th Int. Workshop on Visual Form (IWVF4), Capri, Italy, 2001, Italy. pp.542-551 Communication dans un congrès hal-00308203v1

Ouvrages (1)

Special issue: discrete topology and geometry for image and object representation Jacques-Olivier Lachaud,Anne Vialard Academic Press Professional, Inc., pp.1-3, 2003 Ouvrages hal-00308197v1

Proceedings/Recueil des communications (1)

Image Processing Online (IPOL) : Special issue on DGCI 2011 Joost Batenburg,David Coeurjolly,Bertrand Kerautret,Köthe Ullrich,Jacques-Olivier Lachaudet al. Discrete Geometry (DGCI 2011), Apr 2011, Nancy, France. 4, 2014 Proceedings/Recueil des communications hal-01262776v1

Poster de conférence (1)

Feature Extraction on Digital Snow Microstructures Jérémy Levallois,David Coeurjolly,Jacques-Olivier Lachaud SIGGRAPH Poster, Aug 2015, Los Angeles, United States. ACM, 2015 Poster de conférence hal-01145709v1

Chapitre d'ouvrage (4)

Robust and Convergent Curvature and Normal Estimators with Digital Integral Invariants Jacques-Olivier Lachaud,David Coeurjolly,Jérémy Levallois Laurent Najman, Pascal Romon. Modern Approaches to Discrete Curvature , 2184, Springer-Verlag, 2017, Lecture Notes in Mathematics, 978-3-319-58001-2 Chapitre d'ouvrage hal-01576020v1
Multigrid convergence of discrete geometric estimators David Coeurjolly,Jacques-Olivier Lachaud,Tristan Roussillon Valentin E. Brimkov; Reneta P. Barneva. Digital Geometry Algorithms. Theoretical Foundations and Applications to Computational Imaging, 2, Springer, pp.395-424, 2012, Lecture Notes in Computational Vision and Biomechanics, 978-94-007-9958-5. ⟨10.1007/978-94-007-4174-4_13⟩ Chapitre d'ouvrage hal-01352952v1
Chapitre 3. Topologie, courbes et surfaces discrètes Jacques-Olivier Lachaud,Rémy Malgouyres D. Coeurjolly, A. Montanvert, J. Chassery. Géométrie discrète et images numériques, Hermès, pp.75-102, 2007, Traité IC2, série signal et image Chapitre d'ouvrage hal-00396669v1
Chapitre 12. Approximation par triangulation Jacques-Olivier Lachaud,Sébastien Valette D. Coeurjolly, A. Montanvert, J. Chassery. Géométrie discrète et images numériques, Hermès, pp.263-282, 2007, Traité IC2, série signal et image Chapitre d'ouvrage hal-00396679v1

Pré-publication, Document de travail (4)

Elastica Energy Regularization via Graph Cuts Daniel Martins Antunes,Jacques-Olivier Lachaud,Hugues Talbot 2023 Pré-publication, Document de travail hal-04421328v1
Delaunay property and proximity results of the L-algorithm for digital plane probing Jui-Ting Lu,Tristan Roussillon,Jacques-Olivier Lachaud,David Coeurjolly 2023 Pré-publication, Document de travail (preprint/prepublication) hal-04094380v1
Mumford-Shah Mesh Processing using the Ambrosio-Tortorelli Functional Nicolas Bonneel,David Coeurjolly,Pierre Gueth,Jacques-Olivier Lachaud 2018 Pré-publication, Document de travail hal-01815283v1
Heat kernel Laplace-Beltrami operator on digital surfaces Thomas Caissard,David Coeurjolly,Jacques-Olivier Lachaud,Tristan Roussillon 2016 Pré-publication, Document de travail hal-01498293v1

Rapport (2)

Delaunay property and proximity results of the L-algorithm Tristan Roussillon,Jui-Ting Lu,Jacques-Olivier Lachaud,David Coeurjolly [Research Report] Université de Lyon. 2022 Rapport hal-03719592v1
Voronoi-based geometry estimator for 3D digital surfaces Louis Cuel,Jacques-Olivier Lachaud,Boris Thibert [Research Report] LJK. 2014 Rapport (rapport de recherche) hal-00990169v1

Thèse (1)

Extraction de surfaces à partir d'images tridimensionnelles : approche discrète et approche par modèle déformable Jacques-Olivier Lachaud Modélisation et simulation. Université Joseph-Fourier - Grenoble I, 1998. Français. ⟨NNT : ⟩ Thèse tel-00004892v1

HDR (1)

Espaces non-euclidiens et analyse d'image : modèles déformables riemanniens et discrets, topologie et géométrie discrète Jacques-Olivier Lachaud Interface homme-machine [cs.HC]. Université Sciences et Technologies - Bordeaux I, 2006 HDR tel-00396332v1

Logiciel (5)

DGtal 2.0 David Coeurjolly,Bastien Doignies,Jacques-Olivier Lachaud,Bertrand Kerautret,Kacper Plutaet al. 2025, ⟨swh:1:dir:b511e889e68b62745147dde8d23613655c3a0646⟩ Logiciel hal-05169197v1
DGtal release 1.4 David Coeurjolly,Bastien Doignies,Jacques-Olivier Lachaud,Tristan Roussillon,Pablo Hernandez Cerdanet al. 2024, ⟨swh:1:dir:82230b024eda5774fb54506c92d4df11e636e71d;origin=https://github.com/DGtal-team/DGtal;visit=swh:1:snp:0496cb7456a59e565ed8cb9f57a4fbe49ef96935;anchor=swh:1:rev:cdccf7aa53d9e651fc93db7a5f22e8bdf1313d0b⟩ Logiciel hal-04992412v1
UV-AT: Mesh Parameterization using an Ambrosio-Tortorelli functional Colin Weill-Duflos,David Coeurjolly,Jacques-Olivier Lachaud 2023, ⟨swh:1:dir:25783b84a3ed8647a17a9b2b0ff64b6076e06515;origin=https://github.com/Lieunoir/UV-AT;visit=swh:1:snp:b2ab46399ea76167b2c2cb4709267a132fbc7ea4;anchor=swh:1:rev:2623a909ac59026b969a5a4982c80430a76c1b7c⟩ Logiciel hal-04159872v1
PointCloudCurvCNC: Lightweight Curvature Estimation on Point Clouds with Randomized Corrected Curvature Measures Jacques-Olivier Lachaud,David Coeurjolly 2023, ⟨swh:1:dir:3f0b988534e93d2aafff4c3dc71c3382270ce6a0;origin=https://github.com/JacquesOlivierLachaud/PointCloudCurvCNC;visit=swh:1:snp:d345c541620769d475d631fd8a6ffe1f987285b0;anchor=swh:1:rev:6d7c3b545894b02093ad211f07378ec12270fc30⟩ Logiciel hal-04159939v1
DGtal release 1.3 David Coeurjolly,Jacques-Olivier Lachaud,Bertrand Kerautret,J. Miguel Salazar,Isabelle Sivignonet al. 2022, ⟨swh:1:dir:8c89b341b6b560b3ecf360320e2ed80ad4c86e75;origin=https://github.com/DGtal-team/DGtal;visit=swh:1:snp:f80492b7a4f99939464109fe6c7477b239a9759d;anchor=swh:1:rev:2320dba603919c2ee7be6a9cf8af514273ecd7e4⟩ Logiciel hal-04083347v1