Alexandra Bac

Présentation

Publications

Article dans une revue (12)

Generating 3D Anisotropic Centroidal Voronoi Tessellations Alexandre Marin,Alexandra Bac,Laurent Astart International Journal of Mathematical, Computational, Statistical, Natural and Physical Engineering, 2024, 18 (9) Article dans une revue hal-04706922v2
A constructive approach of alexander duality Aldo Gonzalez-Lorenzo,Alexandra Bac,Yann-Situ Gazull Journal of Applied and Computational Topology, 2024, 9 (1), pp.2. ⟨10.1007/s41468-024-00198-1⟩ Article dans une revue hal-05003653v1
Computing Geometrical Measures of Topological Holes Yann-Situ Gazull,Alexandra Bac,Aldo Gonzalez-Lorenzo Computer-Aided Design, 2023, 163, pp.103563. ⟨10.1016/j.cad.2023.103563⟩ Article dans une revue hal-04322031v1
Segmentation of unbalanced and in-homogeneous point clouds and its application to 3D scanned trees Jules Morel,Alexandra Bac,Takashi Kanai The Visual Computer, 2020 Article dans une revue hal-03418434v1
Comparison of Three Algorithms to Estimate Tree Stem Diameter from Terrestrial Laser Scanner Data Joris Ravaglia,Richard A Fournier,Alexandra Bac,Cédric Véga,Jean-François Côtéet al. Forests, 2019, 10 (7), pp.599. ⟨10.3390/f10070599⟩ Article dans une revue hal-03325416v1
Surface reconstruction of incomplete datasets: A novel Poisson surface approach based on CSRBF Jules Morel,Alexandra Bac,Cedric Vega Computers and Graphics, 2018, 74, pp.44-55. ⟨10.1016/j.cag.2018.05.004⟩ Article dans une revue istex hal-02109646v1
Terrain model reconstruction from terrestrial LiDAR data using radial basis functions Jules Morel,Alexandra Bac,Cédric Vega IEEE Computer Graphics and Applications, 2017, 37 (5), pp.72-84. ⟨10.1109/MCG.2017.3621225⟩ Article dans une revue hal-01380160v1
Allowing cycles in discrete Morse theory Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari,Pedro Real Topology and its Applications, 2017, 228, pp.1-35. ⟨10.1016/j.topol.2017.05.008⟩ Article dans une revue hal-01528103v1
Extraction of tubular shapes from dense point clouds and application to tree reconstruction from laser scanned data Joris Ravaglia,Alexandra Bac,Richard A Fournier Computers and Graphics, 2017, 66, pp.23-33. ⟨10.1016/j.cag.2017.05.016⟩ Article dans une revue hal-01685214v1
Searching combinatorial optimality using graph-based homology information Pedro Real,Helena Molina-Abril,Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari Applicable Algebra in Engineering, Communication and Computing, 2015, 26 (1-2), pp. 103-120. ⟨10.1007/s00200-014-0248-x⟩ Article dans une revue hal-01285969v1
3D modeling and segmentation with discrete curvatures Alexandra Bac,Marc Daniel,Jean-Louis Maltret Journal of Medical Informatics and Technology, 2005, 9, pp.13--24 Article dans une revue hal-01288298v1
Un modèle relationnel de la logique linéaire du second ordre Alexandra Bac Notes aux Comptes-Rendus de l'Académie des Sciences, 2001, 334 (2) Article dans une revue hal-01380172v1

Communication dans un congrès (40)

Characterization of the Computed Homology and Cohomology Bases Yann-Situ Gazull,Aldo Gonzalez-Lorenzo,Alexandra Bac Discrete Geometry and Mathematical Morphology, Michael H. F. Wilkinson, Jiří Kosinka, Nov 2025, Groningen, Netherlands. pp.163-177, ⟨10.1007/978-3-032-09544-2_12⟩ Communication dans un congrès hal-05357027v1
A New Data Structure For Handling Efficiently Polyhedral Complexes Alexandre Marin,Wassim Ahmed-Belkacem,Alexandra Bac,Laurent Astart RING Meeting, Jun 2022, Nancy, France Communication dans un congrès hal-03650376v1
A Heuristic for Short Homology Basis of Digital Objects Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari International Joint Conference on Discrete Geometry and Mathematical Morphology (DGMM), 2022, Strasbourg, France. pp.60-70, ⟨10.1007/978-3-031-19897-7_6⟩ Communication dans un congrès hal-03953372v1
Measuring Holes of 3D Meshes Yann-Situ Gazull,Aldo Gonzalez-Lorenzo,Alexandra Bac Groupe de Travail en Modélisation Géométrique (GTMG), Mar 2021, Online, France Communication dans un congrès hal-03650377v1
High Accuracy Terrain Reconstruction from Point Clouds Using Implicit Deformable Model Jules Morel,Alexandra Bac,Takashi Kanai ICCS, Jun 2020, Amsterdam, Netherlands Communication dans un congrès hal-03418436v1
Digital Terrain Model From UAV Photogrammetric Data Jules Morel,Alexandra Bac,Takashi Kanai Smart Tools and Applications in Graphics (STAG), Nov 2020, Firenze, Italy Communication dans un congrès hal-03418438v1
Surface reconstruction of incomplete datasets: a novel Poisson surface approach based on CSRBF Jules Morel,Alexandra Bac,Cedric Vega Paper presented at the Shape Modelling International (SMI 2018) Symposium, Instituto Superior Técnico, University of Lisbon, Jun 2018, Lisbo, Portugal Communication dans un congrès hal-02902826v1
The use of terrestrial LiDAR for enhanced forest inventory Richard A Fournier,Jean-François Côté,Joris Ravaglia,Ulysse Rémillard,Olivier Martin-Ducupet al. Earth Observation Summit, 2017, Montréal, Canada Communication dans un congrès hal-02080481v1
Opening Holes in Discrete Objects with Digital Homotopy Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari 20th IAPR International Conference on Discrete Geometry for Computer Imagery (DGCI 2017), Sep 2017, Vienne, Austria. pp.213--224, ⟨10.1007/978-3-319-66272-5_18⟩ Communication dans un congrès hal-01698847v1
Extraction of tubular shapes from dense point clouds and application to tree reconstruction from laser scanned data Joris Ravaglia,Alexandra Bac,Richard A Fournier Shape Modeling International, Jun 2017, Berkeley, United States Communication dans un congrès hal-01685231v1
Anisotropic Octrees: a Tool for Fast Normals Estimation on Unorganized Point Clouds Joris Ravaglia,Alexandra Bac,Richard A Fournier WSCG, May 2017, Plzen, Czech Republic Communication dans un congrès hal-01690397v1
Two Measures for the Homology Groups of Binary Volumes Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari,Pedro Real 19th IAPR International Conference on Discrete Geometry for Computer Imagery (DGCI 2016), Apr 2016, Nantes, France. pp.154-165, ⟨10.1007/978-3-319-32360-2_12⟩ Communication dans un congrès hal-01341015v1
Two new measures for the homology groups of discrete objects Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari,Pedro Real Journées du Groupement de Recherche "Informatique Mathématique" (GdR IM), 2016, Villetaneuse, France Communication dans un congrès hal-01381805v1
Importing cooperative pedagogy into postgraduate courses - an experiment Alexandra Bac,Alexis Ben-Miloud,Axel Rozo-Brezillac Future Of Education - FOE, Jun 2016, Florence, Italy Communication dans un congrès hal-01380181v1
Topological Comparisons of Fluvial Reservoir Rock Volumes Using Betti Numbers: Application to CO2 Storage Uncertainty Analysis Asmae Dahrabou,Sophie Viseur,Aldo Gonzalez-Lorenzo,Jeremy Rohmer,Alexandra Bacet al. 6th International Workshop on Computational Topology in Image Context (CTIC 2016), Jun 2016, Marseille, France. pp.101-112, ⟨10.1007/978-3-319-39441-1_10⟩ Communication dans un congrès hal-01341013v1
Mesures géométriques pour les groupes d’homologie : vers une adaptation aux complexes simpliciaux Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari,Pedro Real Journées du Groupe de Travail en Modélisation géométrique (GTMG 2016), Mar 2016, Dijon, France. pp.12-15 Communication dans un congrès hal-01476541v1
Fast, Simple and Separable Computation of Betti Numbers on Three-dimensional Cubical Complexes Aldo Gonzalez-Lorenzo,Mateusz Juda,Alexandra Bac,Jean-Luc Mari,Pedro Real 6th International Workshop on Computational Topology in Image Context (CTIC 2016), Jun 2016, Marseille, France. pp.130-139, ⟨10.1007/978-3-319-39441-1_12⟩ Communication dans un congrès hal-01341014v1
Homological Discrete Vector Fields and homotopy equivalence Aldo Gonzalez Lorenzo,Alexandra Bac,Jean-Luc Mari,Pedro Real Applications of Computer Algebra (ACA 2015), 2015, Kalamata, Greece Communication dans un congrès hal-01499699v1
Tree stem reconstruction from terrestrial laser scanner point cloud using Hough transform and open active contours Joris A Ravaglia,Alexandra Bac,Richard A Fournier Silvilaser 2015, Sep 2015, La Grande Motte, France Communication dans un congrès hal-01376470v1
Fast computation of Betti numbers on three-dimensional cubical complexes Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari,Pedro Real Applications of Computer Algebra (ACA 2015), 2015, Kalamata, Greece Communication dans un congrès hal-01341017v1
Computation of tree volume from terrestrial LiDAR data Jules Morel,Alexandra Bac,Cédric Vega MMT, Dec 2015, Sydney, Australia. pp.53--59 Communication dans un congrès hal-01381812v1
Computation of tree volume from terrestrial LiDAR data Jules Morel,Alexandra Bac,Cédric Vega SilviLaser 2015, Sep 2015, La Grande Motte, France. pp.308--310 Communication dans un congrès hal-01381791v1
Cellular Skeletons: a New Approach to Topological Skeletons with Geometric Features Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari,Pedro Real 16th International Conference on Computer Analysis of Images and Patterns (CAIP 2015), Sep 2015, La Valette, Malta. pp.616-627, ⟨10.1007/978-3-319-23117-4_53⟩ Communication dans un congrès hal-01341037v1
Topological comparisons of fluvial reservoir rock volumes using Betti numbers: application to CO2 storage uncertainty analysis Asmae Dahrabou,Sophie Viseur,Aldo Gonzalez-Lorenzo,Jean-Luc Mari,Alexandra Bacet al. 35th gOcad Meeting, 2015, Nancy, France Communication dans un congrès hal-01341016v1
Forest carbon assessment from LiDAR 3D point cloud analysis Alexandra Bac,Jules Morel,Cédric Vega RFCC - Regional Forum on Climate Change, Jul 2015, Bangkok, Thailand Communication dans un congrès hal-01381790v1
Modélisation de tiges d'arbres à partir de contours actifs Joris Ravaglia,Alexandra Bac,Richard A Fournier GTMG 2015, Apr 2015, Poitiers, France Communication dans un congrès hal-01376474v1
Triangulation of an elevation surface structured by a sparse 3D grid Van-Sinh Nguyen,Alexandra Bac,Marc Daniel The Fifth IEEE International Conference on Communications and Electronics IEEE ICCE 2014, 2014, DaNang, Vietnam. pp.464-469 Communication dans un congrès hal-01311428v1
Computing Homological Information Based on Directed Graphs within Discrete Objects Aldo Gonzalez-Lorenzo,Alexandra Bac,Jean-Luc Mari,Pedro Real 16th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing (SYNASC 2014), Sep 2014, Timisoara, Romania. pp.571--578, ⟨10.1109/SYNASC.2014.82⟩ Communication dans un congrès hal-01381797v1
Spatial vegetation density index from terrestrial laser scanner : a continuous approach applied to forestry Alexandra Bac,Joris Ravaglia,Richard A Fournier IGARSS, Jul 2014, Québec, Canada Communication dans un congrès hal-01381800v1
Segmentation de nuages de points par octrees et analyse en composantes principales Joris Ravaglia,Alexandra Bac,Richard A Fournier GTMG 2014, Mar 2014, Lyon, France Communication dans un congrès hal-01376473v1
Laser-scanned tree stem filtering for forest inventories measurements Joris Ravaglia,Alexandra Bac,Alexandre Piboule Digital Heritage, Oct 2013, Marseille, France. pp.649 - 652, ⟨10.1109/DigitalHeritage.2013.6743809⟩ Communication dans un congrès hal-01376465v1
Application of discrete curvatures to surface mesh simplification and feature line extraction Alexandra Bac,Jean-Luc Mari,Dimitri Kudelski,van Tran Nam,Sophie Viseuret al. Discrete Curvature - Theory and Applications, a colloquium on discrete curvature, Nov 2013, Marseille, France Communication dans un congrès hal-01311433v1
Simplification of 3D point clouds sampled from elevation surfaces Van-Sinh Nguyen,Alexandra Bac,Marc Daniel 21th International Conference on Computer Graphics, Visualization and Computer Vision, WSCG2013, 2013, Plenz, Czech Republic. pp.60-69 Communication dans un congrès hal-01311430v1
Boundary Extraction and Simplification of a Surface Defined by a Sparse 3D Volume Van-Sinh Nguyen,Alexandra Bac,Marc Daniel Proceeding of the third international symposium on information and communication technology SoICT 2012, 2012, Ha Long, Vietnam. pp.115-124 Communication dans un congrès hal-01311438v1
Surface Improvement for Reservoir Modelling Alexandra Bac,Marc Daniel,Rainaud J.F.,van Tran Nam MAMERN 2009, 2009, Unknown, Unknown Region. pp.163--167 Communication dans un congrès hal-01311451v1
A multistep approach to restoration of locally undersampled meshes Alexandra Bac,van Tran Nam,Marc Daniel GMP, Apr 2008, Langzhou, China Communication dans un congrès hal-01381807v1
A hybrid simplification algorithm for triangular meshes Alexandra Bac,van Tran Nam,Marc Daniel GraphiCon'2007, 2007, Moscou, Unknown Region. pp.17--24 Communication dans un congrès hal-01311455v1
Une méthode hybride de simplification de maillages triangulaires van Tran Nam,Alexandra Bac,Marc Daniel GTMG 2006, 2006, Unknown, Région indéterminée Communication dans un congrès hal-01311383v1
Controlled Local Deformation of NURBS Surfaces to Satisfy Several Punctual Constraints Raphaël La Greca,Marc Daniel,Alexandra Bac Curves and Surfaces, 2006, Avignon, France Communication dans un congrès hal-01311460v1
Traitement de surfaces géologiques pour la construction de modèles 3D Alexandra Bac,van Tran Nam,Marc Daniel,Michel Perrin GTMG 2005, 2005, Unknown, Région indéterminée Communication dans un congrès hal-01311385v1

Poster de conférence (1)

Spatial vegetation density index from terrestrial laser scanner Joris Ravaglia,Alexandra Bac,Richard A Fournier IEEE Geoscience and Remote Sensing Society (IGARSS), Jul 2014, Québec, Canada Poster de conférence hal-01376468v1

Chapitre d'ouvrage (3)

Individual surface representations and optimization Alexandra Bac,Marc Daniel,van Tran Nam Editions Technip. Shared Earth Modeling: Knowledge driven solutions for building and managing subsurface 3D geological models, pp.95-113, 2013 Chapitre d'ouvrage hal-01288312v1
A Multistep Approach to Restoration of Locally Undersampled Meshes Alexandra Bac,van Tran Nam,Marc Daniel F. Chen and B. Jüttler. Advances in Geometric Modeling and Applications, pp.272-289, 2008 Chapitre d'ouvrage hal-01288313v1
Local Deformation of NURBS Curves Raphaël La Greca,Marc Daniel,Alexandra Bac Nashboro Press. Mathematical Methods for Curves and Surfaces: Tromso 2004, 0--9728482-4-X, pp.243--252, 2005 Chapitre d'ouvrage hal-01288315v1

Rapport (1)

Satisfying Constraints Through Local Deformation of NURBS Curves Raphaël La Greca,Marc Daniel,Alexandra Bac [Rapport de recherche] LSIS.RR.2004.006, Laboratoire des Sciences de l\'Information et des Syst\èmes. 2004 Rapport (rapport de recherche) hal-01488865v1