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Laurent Najman

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<image style="float: left; margin-left: 5px; margin-right: 5px;" src="https://laurentnajman.org/uploads/images/LaurentNajman-portrait-2023-small.jpeg" width="142" height="160">**Laurent Najman** received the Habilitation à Diriger les Recherches in 2006 from the University of Marne-la-Vallée, a Ph.D. of applied mathematics from Paris-Dauphine University in 1994 with the highest honour (Félicitations du Jury) and an “Ingénieur” degree from the Ecole des Mines de Paris in 1991. After earning his engineering degree, he worked in the Central Research Laboratories of Thomson-CSF for three years, working on some problems of infrared image segmentation using mathematical morphology. He then joined a start-up company named Animation Science in 1995, as director of research and development. The technology of particle systems for computer graphics and scientific visualisation, developed by the company under his technical leadership received several awards, including the “European Information Technology Prize 1997” awarded by the European Commission (Esprit programme) and by the European Council for Applied Science and Engineering and the “Hottest Products of the Year 1996” awarded by the Computer Graphics World journal. In 1998, he joined OCÉ Print Logic Technologies, as senior scientist. He worked there on various problem of image analysis dedicated to scanning and printing. In 2002, he joined the Informatics Department of ESIEE, Paris, where he is professor and a member of the Laboratoire d’Informatique Gaspard Monge, Université Paris-Est Marne-la-Vallée. His current research interest is discrete mathematical morphology, discrete topology and optimization.

Publications

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Assessing hierarchies by their consistent segmentations

Zeev Gutman , Ritvik Vij , Laurent Najman , Michael Lindenbaum
Journal of Mathematical Imaging and Vision, 2024, ⟨10.1007/s10851-024-01176-z⟩
Journal articles hal-03633805v2
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Transforming gradient-based techniques into interpretable methods

Caroline Mazini Rodrigues , Nicolas Boutry , Laurent Najman
Pattern Recognition Letters, 2024, 184, pp.66-73. ⟨10.1016/j.patrec.2024.06.006⟩
Journal articles hal-04414672v2
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Unsupervised discovery of Interpretable Visual Concepts

Caroline Mazini Rodrigues , Nicolas Boutry , Laurent Najman
Information Sciences, 2024, 661, pp.120159. ⟨10.1016/j.ins.2024.120159⟩
Journal articles hal-04190721v3
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Discrete Morse Functions and Watersheds

Gilles Bertrand , Nicolas Boutry , Laurent Najman
Journal of Mathematical Imaging and Vision, 2023, 65, pp.787--801. ⟨10.1007/s10851-023-01157-8⟩
Journal articles hal-03928064v3
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Visualizing hierarchies in scRNA-seq data using a density tree-biased autoencoder

Quentin Garrido , Sebastian Damrich , Alexander Jäger , Dario Cerletti , Manfred Claassen
Bioinformatics, 2022, Issue Supplement_1, 38, pp.i316--i324. ⟨10.1093/bioinformatics/btac249⟩
Journal articles hal-03136103v3
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Triplet-Watershed for Hyperspectral Image Classification

Aditya Challa , Sravan Danda , B S Daya Sagar , Laurent Najman
IEEE Transactions on Geoscience and Remote Sensing, 2022, 60, pp.1--14. ⟨10.1109/TGRS.2021.3113721⟩
Journal articles hal-03171597v3
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Continuous Well-Composedness Implies Digital Well-Composedness in n-D

Nicolas Boutry , Rocio Gonzalez-Diaz , Laurent Najman , Thierry Géraud
Journal of Mathematical Imaging and Vision, 2022, 64 (2), pp.131-150. ⟨10.1007/s10851-021-01058-8⟩
Journal articles hal-03575456v1
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Rethinking Interactive Image Segmentation: Feature Space Annotation

Jordão Bragantini , Alexandre X Falcão , Laurent Najman
Pattern Recognition, 2022, 131, pp.108882. ⟨10.1016/j.patcog.2022.108882⟩
Journal articles hal-03105751v3
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Some equivalence relation between persistent homology and morphological dynamics

Nicolas Boutry , Laurent Najman , Thierry Géraud
Journal of Mathematical Imaging and Vision, 2022, 64, pp.807--824. ⟨10.1007/s10851-022-01104-z⟩
Journal articles hal-03676854v1
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Iterated Watersheds, A Connected Variation of K-Means for Clustering GIS Data

Sampriti Soor , Aditya Challa , Sravan Danda , B S Daya Sagar , Laurent Najman
IEEE Transactions on Emerging Topics in Computing, 2021, 9 (2), pp.626 - 636. ⟨10.1109/TETC.2019.2910147⟩
Journal articles hal-02063210v2
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Myocardial Perfusion Simulation for Coronary Artery Disease: A Coupled Patient-Specific Multiscale Model

Lazaros Papamanolis , Hyun Jin Kim , Clara Jaquet , Matthew Sinclair , Michiel Schaap
Annals of Biomedical Engineering, 2021, 49, pp.1432-1447. ⟨10.1007/s10439-020-02681-z⟩
Journal articles hal-03036457v2
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Object Detection with Component-Graphs in Multi-band Images: Application to Source Detection in Astronomical Images

Thanh Xuan Nguyen , Giovanni Chierchia , O Razim , R Peletier , Laurent Najman
IEEE Access, 2021, 9, pp.156482-156491. ⟨10.1109/ACCESS.2021.3128519⟩
Journal articles hal-03429058v2
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A Tutorial on Applications of Power Watershed Optimization to Image Processing

Sravan Danda , Aditya Challa , B S Daya Sagar , Laurent Najman
The European Physical Journal. Special Topics, 2021, 230, pp.2337-2361. ⟨10.1140/epjs/s11734-021-00264-0⟩
Journal articles hal-03313641v1
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Shaping for PET image analysis

Eloïse Grossiord , Nicolas Passat , Hugues Talbot , Benoît Naegel , Salim Kanoun
Pattern Recognition Letters, 2020, 131, pp.307-313. ⟨10.1016/j.patrec.2020.01.017⟩
Journal articles hal-02155801v1
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Characterization of graph-based hierarchical watersheds: theory and algorithms

Deise Santana Maia , Jean Cousty , Laurent Najman , Benjamin Perret
International Journal of Mathematical Imaging and Vision, 2020, Special Issue on Discrete Geometry for Computer Imagery 2019, 62 (5), pp.627-658. ⟨10.1007/s10851-019-00936-6⟩
Journal articles hal-02280023v2
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Topological Properties of the First Non-Local Digitally Well-Composed Interpolation on n-D Cubical Grids

Nicolas Boutry , Laurent Najman , Thierry Géraud
Journal of Mathematical Imaging and Vision, 2020, 62 (9), pp.1256-1284. ⟨10.1007/s10851-020-00989-y⟩
Journal articles hal-02990810v1
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Power Spectral Clustering

Aditya S Challa , Sravan Danda , B S S Daya Sagar , Laurent Najman
Journal of Mathematical Imaging and Vision, 2020, 62 (9), pp.1195--1213. ⟨10.1007/s10851-020-00980-7⟩
Journal articles hal-01516649v4
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Equivalence between Digital Well-Composedness and Well-Composedness in the Sense of Alexandrov on n-D Cubical Grids

Nicolas Boutry , Laurent Najman , Thierry Géraud
Journal of Mathematical Imaging and Vision, 2020, 62 (9), pp.1285-1333. ⟨10.1007/s10851-020-00988-z⟩
Journal articles hal-02990817v1
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Watersheds for Semi-Supervised Classification

Aditya Challa , Sravan Danda , B S Daya Sagar , Laurent Najman
IEEE Signal Processing Letters, 2019, 26 (5), pp.720-724. ⟨10.1109/LSP.2019.2905155⟩
Journal articles hal-01977705v2
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Shape-based analysis on component-graphs for multivalued image processing

Eloïse Grossiord , Benoît Naegel , Hugues Talbot , Laurent Najman , Nicolas Passat
Mathematical Morphology - Theory and Applications, 2019, 3 (1), pp.45-70. ⟨10.1515/mathm-2019-0003⟩
Journal articles hal-01695384v3
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Removing non-signicant regions in hierarchical clustering and segmentation

Benjamin Perret , Jean Cousty , Silvio Jamil Ferzoli Guimarães , Yukiko Kenmochi , Laurent Najman
Pattern Recognition Letters, 2019, 128, pp.433-439. ⟨10.1016/j.patrec.2019.10.008⟩
Journal articles hal-02305469v3
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How to Make n-D Plain Maps defined on Discrete Surfaces Alexandrov-Well-Composed in a Self-dual Way

Nicolas Boutry , Thierry Géraud , Laurent Najman
Journal of Mathematical Imaging and Vision, 2019, 61, pp.849-973. ⟨10.1007/s10851-019-00873-4⟩
Journal articles hal-02005579v1
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Revisiting the Isoperimetric Graph Partitioning Problem

Sravan Danda , Aditya Challa , B S Daya Sagar , Laurent Najman
IEEE Access, 2019, 7, pp.50636 - 50649. ⟨10.1109/ACCESS.2019.2901094⟩
Journal articles hal-01810249v1
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Higra: Hierarchical Graph Analysis

Benjamin Perret , Giovanni Chierchia , Jean Cousty , Silvio Jamil F. Guimarães , Yukiko Kenmochi
SoftwareX, 2019, 10, pp.100335. ⟨10.1016/j.softx.2019.100335⟩
Journal articles hal-02309938v1
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Properties of combinations of hierarchical watersheds

Deise Santana Maia , Jean Cousty , Laurent Najman , Benjamin Perret
Pattern Recognition Letters, 2019, 128, pp.513-520. ⟨10.1016/j.patrec.2019.10.009⟩
Journal articles hal-02175824v2
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Generation of patient-specific cardiac vascular networks: a hybrid image-based and synthetic geometric model

Clara Jaquet , Laurent Najman , Hugues Talbot , Leo Grady , Michiel Schaap
IEEE Transactions on Biomedical Engineering, 2019, 66 (4), pp.946-955. ⟨10.1109/TBME.2018.2865667⟩
Journal articles hal-01869264v1
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Some Theoretical Links Between Shortest Path Filters and Minimum Spanning Tree Filters

Sravan Danda , Aditya Challa , B S Daya Sagar , Laurent Najman
Journal of Mathematical Imaging and Vision, 2019, 61, pp.745-762. ⟨10.1007/s10851-018-0866-1⟩
Journal articles hal-01617799v6
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Some Properties of Interpolations Using Mathematical Morphology

Aditya Challa , Sravan Danda , B S Daya Sagar , Laurent Najman
IEEE Transactions on Image Processing, 2018, 27 (4), pp.2038 - 2048. ⟨10.1109/TIP.2018.2791566⟩
Journal articles hal-01484894v3
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Curvilinear structure analysis by ranking the orientation responses of path operators

Odyssée Merveille , Hugues Talbot , Laurent Najman , Nicolas Passat
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2018, 40 (2), pp.304-317. ⟨10.1109/TPAMI.2017.2672972⟩
Journal articles hal-01262728v2
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A Tutorial on Well-Composedness

Nicolas Boutry , Thierry Géraud , Laurent Najman
Journal of Mathematical Imaging and Vision, 2018, 60 (3), pp.443-478. ⟨10.1007/s10851-017-0769-6⟩
Journal articles hal-01609892v2
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Hierarchical segmentations with graphs: quasi-flat zones, minimum spanning trees, and saliency maps

Jean Cousty , Laurent Najman , Yukiko Kenmochi , Silvio Guimarães
Journal of Mathematical Imaging and Vision, 2018, 60 (4), pp.479-502. ⟨10.1007/s10851-017-0768-7⟩
Journal articles hal-01344727v2
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Hierarchizing graph-based image segmentation algorithms relying on region dissimilarity: the case of the Felzenszwalb-Huttenlocher method

Silvio J. Guimarães , Yukiko Kenmochi , Jean Cousty , Zenilton Patrocinio , Laurent Najman
Mathematical Morphology - Theory and Applications, 2017, ⟨10.1515/mathm-2017-0004⟩
Journal articles hal-01342967v4
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2D filtering of curvilinear structures by ranking the orientation responses of path operators (RORPO)

Odyssée Merveille , Benoît Naegel , Hugues Talbot , Laurent Najman , Nicolas Passat
Image Processing On Line, 2017, 7, pp.246-261. ⟨10.5201/ipol.2017.207⟩
Journal articles hal-01599528v1
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Extending the PowerWatershed framework thanks to Γ-convergence

Laurent Najman
SIAM Journal on Imaging Sciences, 2017, 10 (4), pp.2275-2292. ⟨10.1137/17M1118580⟩
Journal articles hal-01428875v2
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Scale-space for empty catheter segmentation in PCI fluoroscopic images

Ketan Bacchuwar , Jean Cousty , Régis Vaillant , Laurent Najman
International Journal of Computer Assisted Radiology and Surgery, 2017, 12 (7), pp.1179-1188. ⟨10.1007/s11548-017-1612-7⟩
Journal articles hal-01445849v3
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Tree-wise Discriminative Subtree Selection for Texture Image Labeling

Tsubasa Hirakawa , Toru Tamaki , Takio Kurita , Bisser Raytchev , Kazufumi Kaneda
IEEE Access, 2017, 5, pp.13617 - 13634. ⟨10.1109/ACCESS.2017.2725319⟩
Journal articles hal-01570517v1
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Hierarchical Segmentation Using Tree-Based Shape Spaces

Yongchao Xu , Edwin Carlinet , Thierry Géraud , Laurent Najman
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2017, 39 (3), pp.457-469. ⟨10.1109/TPAMI.2016.2554550⟩
Journal articles hal-01301966v1
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Connected Filtering on Tree-Based Shape-Spaces

Yongchao Xu , Thierry Géraud , Laurent Najman
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2016, 38 (6), pp.1126 - 1140. ⟨10.1109/TPAMI.2015.2441070⟩
Journal articles hal-01162437v1
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Hierarchical image simplification and segmentation based on Mumford-Shah-salient level line selection

Yongchao Xu , Thierry Géraud , Laurent Najman
Pattern Recognition Letters, 2016, ⟨10.1016/j.patrec.2016.05.006⟩
Journal articles hal-01287029v2
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Improved Estimation of Cardiac Function Parameters Using a Combination of Independent Automated Segmentation Results in Cardiovascular Magnetic Resonance Imaging

Jessica Lebenberg , Alain Lalande , Patrick Clarysse , Irene Buvat , Christopher Casta
PLoS ONE, 2015, 10 (8), pp.e0135715. ⟨10.1371/journal.pone.0135715⟩
Journal articles hal-01235953v1
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Dimensional operators for mathematical morphology on simplicial complexes

Fabio Dias , Jean Cousty , Laurent Najman
Pattern Recognition Letters, 2014, 47, pp.111-119
Journal articles hal-00934488v1
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Collapses and watersheds in pseudomanifolds of arbitrary dimension

Jean Cousty , Gilles Bertrand , Michel Couprie , Laurent Najman
Journal of Mathematical Imaging and Vision, 2014, 50 (3), pp.261-285. ⟨10.1007/s10851-014-0498-z⟩
Journal articles hal-00871498v2

A graph-based mathematical morphology reader

Laurent Najman , Jean Cousty
Pattern Recognition Letters, 2014, 47, pp.3-17. ⟨10.1016/j.patrec.2014.05.007⟩
Journal articles hal-00986191v1
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Convolutional Nets and Watershed Cuts for Real-Time Semantic Labeling of RGBD Videos

Camille Couprie , Clément Farabet , Laurent Najman , Yann Lecun
Journal of Machine Learning Research, 2014, 15, pp.3489−3511
Journal articles hal-01066586v1
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Tree-Based Morse Regions: A Topological Approach to Local Feature Detection

Yongchao Xu , Pascal Monasse , Thierry Géraud , Laurent Najman
IEEE Transactions on Image Processing, 2014, 23 (12), pp.5612-5625. ⟨10.1109/TIP.2014.2364127⟩
Journal articles hal-01162446v1
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Learning Hierarchical Features for Scene Labeling

Clément Farabet , Camille Couprie , Laurent Najman , Yann Lecun
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013, 35 (8), pp.1915 - 1929. ⟨10.1109/TPAMI.2012.231⟩
Journal articles hal-00742077v1
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Morphological filtering on graphs

Jean Cousty , Laurent Najman , Fabio Dias , Jean Serra
Computer Vision and Image Understanding, 2013, 117 (4), pp.370-385
Journal articles hal-00700784v2
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Standardized evaluation framework for evaluating coronary artery stenosis detection, stenosis quantification and lumen segmentation algorithms in computed tomography angiography.

H. A. Kirişli , M. Schaap , C. T. Metz , A. S. Dharampal , W. B. Meijboom
Medical Image Analysis, 2013, 17 (8), pp.859-876. ⟨10.1016/j.media.2013.05.007⟩
Journal articles hal-00874107v1
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Dual constrained TV-based regularization on graphs

Camille Couprie , Leo Grady , Laurent Najman , Jean-Christophe Pesquet , Hugues Talbot
SIAM Journal on Imaging Sciences, 2013, 6 (3), pp.246-1273. ⟨10.1137/120895068⟩
Journal articles hal-00743968v2
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Nonsupervised Ranking of Different Segmentation Approaches: Application to the Estimation of the Left Ventricular Ejection Fraction From Cardiac Cine MRI Sequences

Jessica Lebenberg , I. Buvat , Alain Lalande , Patrick Clarysse , Christopher Casta
IEEE Transactions on Medical Imaging, 2012, 31 (8), pp.1651-1660. ⟨10.1109/TMI.2012.2201737⟩
Journal articles hal-00726197v1

Fast Hue-Preserving Histogram Equalization Methods for Color Image Contrast Enhancement

David Menotti-Gomes , Laurent Najman , Jacques Facon , Arnaldo de Albuquerque Araújo
International Journal of Computer Science and Information Technologies, 2012, 4 (5), http://airccse.org/journal/jcsit/4512ijcsit19.pdf
Journal articles hal-00742151v1
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Artwork 3D model database indexing and classification

Sylvie Philipp-Foliguet , Michel M. Jordan , Laurent Najman , Jean Cousty
Pattern Recognition, 2011, 44 (3), pp.588-597
Journal articles hal-00538470v1
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A comprehensive study of stent visualization enhancement in X-ray images by image processing means

Vincent Bismuth , Régis Vaillant , François Funck , Niels Guillard , Laurent Najman
Medical Image Analysis, 2011, 15 (4), pp.565-576
Journal articles hal-00622290v1
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On the equivalence between hierarchical segmentations and ultrametric watersheds

Laurent Najman
Journal of Mathematical Imaging and Vision, 2011, 40 (3), pp.231-247. ⟨10.1007/s10851-011-0259-1⟩
Journal articles hal-00419373v2
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Combinatorial Continuous Maximal Flows

Camille Couprie , Leo Grady , Hugues Talbot , Laurent Najman
SIAM Journal on Imaging Sciences, 2011, 4, pp.905-930. ⟨10.1137/100799186⟩
Journal articles hal-00525822v2
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Power Watersheds: A Unifying Graph Based Optimization Framework

Camille Couprie , Leo Grady , Laurent Najman , Hugues Talbot
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2011, 33 (7), pp.1384-1399. ⟨10.1109/TPAMI.2010.200⟩
Journal articles hal-00622510v1

Segmentation of 4D cardiac MRI: automated method based on spatio-temporal watershed cuts

Jean Cousty , Laurent Najman , Michel Couprie , Stéphanie Clément-Guinaudeau , Thomas Goissen
Image and Vision Computing, 2010, 28 (8), pp.1229-1243
Journal articles hal-00622482v1
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Watershed Cuts: Thinnings, Shortest Path Forests, and Topological Watersheds

Jean Cousty , Gilles Bertrand , Laurent Najman , Michel Couprie
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2010, 32 (5), pp.925-939
Journal articles hal-00729346v1
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A complete processing chain for ship detection using optical satellite imagery

Christina Corbane , Laurent Najman , Emilien Pecoul , Laurent Demagistri , Michel Petit
International Journal of Remote Sensing, 2010, 31 (22), pp.5837--5854. ⟨10.1080/01431161.2010.512310⟩
Journal articles hal-00833006v1
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Watershed Cuts: Minimum Spanning Forests and the Drop of Water Principle

Jean Cousty , Gilles Bertrand , Laurent Najman , Michel Couprie
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2009, 31 (8), pp.1362-1374
Journal articles hal-00622410v1

Fusion graphs: merging properties and watersheds

Jean Cousty , Gilles Bertrand , Michel Couprie , Laurent Najman
Journal of Mathematical Imaging and Vision, 2008, 30 (1), pp.87-104
Journal articles hal-00622371v1
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Weighted fusion graphs: merging properties and watersheds

Jean Cousty , Michel Couprie , Laurent Najman , Gilles Bertrand
Discrete Applied Mathematics, 2008, 156 (15), pp.3011-3027
Journal articles hal-00622473v1

Multi-histogram equalization methods for contrast enhancement and brightness preserving

David Menotti-Gomes , Laurent Najman , Jacques Facon , Arnaldo de Albuquerque Araújo
IEEE Transactions on Consumer Electronics, 2007, 53 (3), pp.1186-1194
Journal articles hal-00622372v1
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Building the component tree in quasi-linear time

Laurent Najman , Michel Couprie
IEEE Transactions on Image Processing, 2006, 15 (11), pp.3531-3539
Journal articles hal-00622110v1
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Quasi-linear algorithms for the topological watershed

Michel Couprie , Laurent Najman , Gilles Bertrand
Journal of Mathematical Imaging and Vision, 2005, 22 (2-3), pp.231-249
Journal articles hal-00622399v1
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Watersheds, mosaics and the emergence paradigm

Laurent Najman , Michel Couprie , Gilles Bertrand
Discrete Applied Mathematics, 2005, 147 (2-3), pp.301-324
Journal articles hal-00622113v1

The Montagnes Russes Algorithm for Global Optimization

Jean-Pierre Aubin , Laurent Najman
Mathematical Methods of Operations Research, 1998, 48 (1), pp.153-168
Journal articles hal-00622047v1

From Crowd Simulation to Airbag Deployment: Particle Systems, a New Paradigm of Simulation

Eric Bouvier , Eyal Cohen , Laurent Najman
Journal of Electronic Imaging, 1997, 6 (1), pp.94-107
Journal articles hal-00622412v1
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Geodesic Saliency of Watershed Contours and Hierarchical Segmentation

Laurent Najman , Michel Schmitt
IEEE Transactions on Pattern Analysis and Machine Intelligence, 1996, 18 (12), pp.1163-1173. ⟨10.1109/34.546254⟩
Journal articles hal-00622128v1

Lattice Operators Underlying Dynamic Systems

Juliette Mattioli , Luc Doyen , Laurent Najman
Set Valued Analysis, 1996, 4 (2), pp.119-134
Journal articles hal-00622411v1
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Mutational equations of the morphological dilation tubes

Luc Doyen , Laurent Najman , Juliette Mattioli
Journal of Mathematical Imaging and Vision, 1995, 5 (3), pp.219 - 230. ⟨10.1007/BF01248373⟩
Journal articles hal-00622457v1
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Euler Method for Mutational Equations

Laurent Najman
Journal of Mathematical Analysis and Applications, 1995, 196 (1), pp.814-822. ⟨10.1006/jmaa.1995.1445⟩
Journal articles hal-00622109v1

L'Algorithme des Montagnes Russes pour l'Optimisation Globale

Jean-Pierre Aubin , Laurent Najman
Comptes rendus hebdomadaires des séances de l'Académie des sciences, 1994, I (319), pp.631-636
Journal articles hal-00621986v1
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Watershed of a Continuous Function

Laurent Najman , Michel Schmitt
Signal Processing, 1994, 38 (1), pp.99-112. ⟨10.1016/0165-1684(94)90059-0⟩
Journal articles hal-00622129v1

La Ligne de Partage des Eaux : Applications d'une Approche Continue

Laurent Najman , Michel Schmitt
Revue Technique Thomson, 1993, 25 (4), pp.261-280
Journal articles hal-00622120v1

From Face Sideviews to Identification

Laurent Najman , Régis Vaillant , E. Pernot
Revue Technique Thomson, 1992, 24 (4), pp.1037-1054
Journal articles hal-00622178v1
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Convex optimization for binary tree-based transport networks

Raoul Sallé de Chou , Mohamed Ali Srir , Laurent Najman , Nicolas Passat , Hugues Talbot
International Conference on Discrete Geometry and Mathematical Morphology (DGMM), 2024, Florence, Italy. pp.217-228, ⟨10.1007/978-3-031-57793-2_17⟩
Conference papers hal-04359833v1
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Morse frames

Gilles Bertrand , Laurent Najman
International Conference on Discrete Geometry and Mathematical Morphology (DGMM), S. Brunetti; A. Frosini; S. Rinaldi, Apr 2024, Florence, Italy
Conference papers hal-04217818v2
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Self-supervised learning of Split Invariant Equivariant representations

Quentin Garrido , Laurent Najman , Yann Lecun
The Fortieth International Conference on Machine Learning, 2023, Honolulu, United States
Conference papers hal-03984775v2
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RankMe: Assessing the downstream performance of pretrained self-supervised representations by their rank

Quentin Garrido , Randall Balestriero , Laurent Najman , Yann Lecun
The Fortieth International Conference on Machine Learning, 2023, Honolulu, United States
Conference papers hal-03793283v3
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SWMLP: Shared Weight Multilayer Perceptron for Car Trajectory Speed Prediction using Road Topographical Features

Sarah Almeida Carneiro , Giovanni Chierchia , Jean Charléty , Aurélie Chataignon , Laurent Najman
International Conference on Models and Technologies for Intelligent Transportation Systems, Jun 2023, Nice, France. pp.1-6, ⟨10.1109/MT-ITS56129.2023.10241394⟩
Conference papers hal-04217918v1
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On the duality between contrastive and non-contrastive self-supervised learning

Quentin Garrido , Yubei Chen , Adrien Bardes , Laurent Najman , Yann Lecun
ICLR 2023 - Eleventh International Conference on Learning Representations, May 2023, Kigali, Rwanda. ⟨10.48550/arXiv.2206.02574⟩
Conference papers hal-03685169v3
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Gradient Vector Fields of Discrete Morse Functions and Watershed-cuts

Nicolas Boutry , Gilles Bertrand , Laurent Najman
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.1--13, ⟨10.1007/978-3-031-19897-7_4⟩
Conference papers hal-03614850v2
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Fairness in generative modeling

Mariia Zameshina , Olivier Teytaud , Fabien Teytaud , Vlad Hosu , Nathanael Carraz
GECCO '22: Genetic and Evolutionary Computation Conference, Jul 2022, Boston Massachusetts, France. pp.320-323, ⟨10.1145/3520304.3528992⟩
Conference papers hal-03793686v1

Visual xAI techniques

Caroline Mazini Rodrigues , Laurent Najman , Nicolas Boutry
Ecole Jeunes Chercheuses et Chercheurs en Informatique Mathématique, Maison de la Modélisation, de la Simulation et des Interactions [MSI], Jun 2022, Nice, France
Conference papers hal-03709709v1

Gradients Intégrés Renforcés

Caroline Mazini Rodrigues , Nicolas Boutry , Laurent Najman
Explain'AI - EGC Workshop, Jan 2022, Blois, France
Conference papers hal-04579609v1
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An Equivalence Relation between Morphological Dynamics and Persistent Homology in n-D

Nicolas Boutry , Thierry Géraud , Laurent Najman
Discrete Geometry and Mathematical Morphology (DGMM), May 2021, Uppsala, Sweden
Conference papers hal-03171063v1
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Graph-based Supervoxel Computation from Iterative Spanning Forest

Carolina Stephanie Jerônimo de Almeida , Felipe Belèm , Sarah A. Carneiro , Zenilton Patrocínio Jr , Laurent Najman
Discrete Geometry and Mathematical Morphology (DGMM), May 2021, Uppsala, Sweden
Conference papers hal-03171076v1
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A 4D counter-example showing that DWCness does not imply CWCness in n-D

Nicolas Boutry , Rocio Gonzalez-Diaz , Laurent Najman , Thierry Géraud
Combinatorial Image Analysis. IWCIA 2020, Jul 2020, Novi Sad, Serbia. ⟨10.1007/978-3-030-51002-2_6⟩
Conference papers hal-02455798v1
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CGO: Multiband Astronomical Source Detection With Component-Graphs

Thanh Xuan Nguyen , Giovanni Chierchia , Laurent Najman , Aku Venhola , Caroline Haigh
ICIP 2020 - IEEE International Conference on Image Processing, Oct 2020, Abu Dhabi, United Arab Emirates. pp.16-20, ⟨10.1109/ICIP40778.2020.9191276⟩
Conference papers hal-03132048v1
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On the probabilities of hierarchical watersheds

Deise Santana Maia , Jean Cousty , Laurent Najman , Benjamin Perret
International Symposium on Mathematical Morphology, Jul 2019, Saarbrücken, Germany. ⟨10.1007/978-3-030-20867-7_11⟩
Conference papers hal-02180484v1
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Recognizing hierarchical watersheds

Deise S Maia , Jean Cousty , Laurent Najman , Benjamin Perret
DGCI2019, Mar 2019, Noisy-le-grand, France. pp.300-313, ⟨10.1007/978-3-030-14085-4_24⟩
Conference papers hal-01948502v1
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Exploring Hierarchy Simplification for Non-Significant Region Removal

Isabela Borlido Barcelos , Gabriel Barbosa da Fonseca , Laurent Najman , Yukiko Kenmochi , Benjamin Perret
2019 32nd SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI), Oct 2019, Rio de Janeiro, Brazil. pp.100-107, ⟨10.1109/SIBGRAPI.2019.00022⟩
Conference papers hal-03132023v1
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Watersheding hierarchies

Deise Santana Maia , Jean Cousty , Laurent Najman , Benjamin Perret
International Symposium on Mathematical Morphology, Jul 2019, Saarbrücken, Germany. ⟨10.1007/978-3-030-20867-7_10⟩
Conference papers hal-02180478v1
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Segmentation 3D des lésions du lymphome à partir de descripteurs multimodaux TEP/TDM

Eloïse Grossiord , Hugues Talbot , Nicolas Passat , Michel Meignan , Laurent Najman
Journée thématique du GdR ISIS : "Segmentation d'images biomédicales : quels outils pour l'analyse des données massives, hétérogènes et multimodales ?", 2018, Paris, France
Conference papers hal-01745773v1
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Extending K-means to Preserve Spatial Connectivity

Sampriti Soor , Aditya Challa , Sravan Danda , B S Daya Sagar , Laurent Najman
IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Jul 2018, Valencia, Spain
Conference papers hal-01686321v1
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VOIDD: automatic vessel of intervention dynamic detection in PCI procedures

Ketan Bacchuwar , Jean Cousty , Régis Vaillant , Laurent Najman
CVII-Stent Workshop MICCAI 2017, Sep 2017, Quebec City, Canada. pp.136 - 157, ⟨10.1109/MSP.2009.934154⟩
Conference papers hal-01615465v1
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Automated 3D lymphoma lesion segmentation from PET/CT characteristics

Eloïse Grossiord , Hugues Talbot , Nicolas Passat , Michel Meignan , Laurent Najman
International Symposium on Biomedical Imaging (ISBI), 2017, Melbourne, Australia. pp.174-178, ⟨10.1109/ISBI.2017.7950495⟩
Conference papers hal-01616459v1
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An Introduction to Gamma-Convergence for Spectral Clustering

Aditya Challa , Sravan Danda , B S Daya Sagar , Laurent Najman
Discrete Geometry for Computer Imagery, Kropatsch, Walter G.; Artner, Nicole M.; Janusch, Ines, Sep 2017, Vienna, Austria. pp.185--196, ⟨10.1007/978-3-319-66272-5_16⟩
Conference papers hal-01427957v2
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Graph-based Hierarchical Video Cosegmentation

Franciele Rodrigues , Pedro Leal , Yukiko Kenmochi , Jean Cousty , Laurent Najman
19th International Conference on Image Analysis and Processing, Sebastiano Battiato; Giovanni Gallo; Raimondo Schettini; Filippo Stanco, Sep 2017, Catania, Italy. ⟨10.1007/978-3-319-68560-1_2⟩
Conference papers hal-01548112v1
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Power Tree Filter: A Theoretical Framework Linking Shortest Path Filters and Minimum Spanning Tree Filters

Sravan Danda , Aditya Challa , B S Daya Sagar , Laurent Najman
Mathematical Morphology and Its Applications to Signal and Image Processing, May 2017, Fontainebleau, France. pp.199-210, ⟨10.1007/978-3-319-57240-6_16⟩
Conference papers hal-01430538v3
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Watersheds on Hypergraphs for Data Clustering

Fabio Dias , Moussa R Mansour , Paola R Valdivia , Jean Cousty , Laurent Najman
ISMM 2017 - 13th International Symposium on Mathematical Morphology and Its Applications to Signal and Image Processing, May 2017, Fontainebleau, France. pp.211-221, ⟨10.1007/978-3-319-57240-6_17⟩
Conference papers hal-01592155v1
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Periodic Area-of-Motion characterization for Bio-Medical applications

Élodie Puybareau , Hugues Talbot , Laurent Najman
ISBI 2017, Apr 2017, Melbourne, Australia. ⟨10.1109/ISBI.2017.7950503⟩
Conference papers hal-01467878v1
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Well-Composedness in Alexandrov Spaces Implies Digital Well-Composedness in $\mathbb {Z}^n$

Nicolas Boutry , Laurent Najman , Thierry Géraud
20th International Conference on Discrete Geometry for Computer Imagery (DGCI 2017), Sep 2017, Vienne, Austria. pp.225-237, ⟨10.1007/978-3-319-66272-5_19⟩
Conference papers hal-01586418v1
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Well-composedness in Alexandrov spaces implies digital well-composedness in Z^n

Nicolas Boutry , Laurent Najman , Thierry Géraud
20th IAPR International Conference on Discrete Geometry for Computer Imagery (DGCI), Sep 2017, Vienna, Austria
Conference papers hal-01744455v1
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Evaluation of combinations of watershed hierarchiesvv

Deise S Maia , Arnaldo de A Araujo , Jean S Cousty , Laurent Najman , Benjamin Perret
ISMM 2017, May 2017, Fontainebleau, France. pp.133-145, ⟨10.1007/978-3-319-57240-6_11⟩
Conference papers hal-01552420v1
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POWER SPECTRAL CLUSTERING ON HYPERSPECTRAL DATA

Aditya Challa , Sravan Danda , B S Daya Sagar , Laurent Najman
International Geoscience and Remote Sensing Symposium, Jul 2017, Forth Worth, United States
Conference papers hal-01484896v1
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Stochastic hierarchical watershed cut based on disturbed topographical surface

Carols Alberto F. Pimentel Filho , Arnaldo Albuquerque de Araújo , Jean Cousty , Silvio Jamil F. Guimarães , Laurent Najman
29th SIBGRAPI Conference on Graphics, Patterns and Images, SIBGRAPI 2016, Oct 2016, Sao Paulo, Brazil. ⟨10.1109/SIBGRAPI.2016.044⟩
Conference papers hal-01616394v1
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Automating the measurement of physiological parameters: a case study in the image analysis of cilia motion

Élodie Puybareau , Hugues Talbot , E Bequignon , B Louis , G Pelle
IEEE International Conference on Image Processing (ICIP), Sep 2016, Phoenix, United States. ⟨10.1109/ICIP.2016.7532556⟩
Conference papers hal-01332942v1
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Discriminative Subtree Selection for NBI Endoscopic Image Labeling

Tsubasa Hirakawa , Toru Tamaki , Takio Kurita , Bisser Raytchev , Kazufumi Kaneda
ACCV2016 workshop on Mathematical and Computational Methods in Biomedical Imaging and Image Analysis, Nov 2016, Taipei, Taiwan. pp.610 - 624, ⟨10.1007/978-3-319-54427-4_44⟩
Conference papers hal-01572264v1

Towards the in-vivo automated assessment of nasal cilia mobility

Élodie Puybareau , Emilie Bequignon , Mathieu Bottier , Gabriel Pelle , Bruno Louis
Congress of the European Rhinologic Society, Jul 2016, Stockholm, Sweden
Conference papers hal-01333003v1
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Decreasing the Number of Features for Improving Human Action Classification

Jacques de Souza Kleber , Arnaldo de Albuquerque Araújo , Zenilton Kleber G. Do Parocinio Jr , Jean Cousty , Laurent Najman
29th SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI 2016), Oct 2016, Sao Paulo, Brazil. ⟨10.1109/SIBGRAPI.2016.035⟩
Conference papers hal-01616376v1
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From real MRA to virtual MRA: Towards an open-source framework

Nicolas Passat , Stéphanie Salmon , Jean-Paul Armspach , Benoît Naegel , Christophe Prud'Homme
Medical Image Computing and Computer-Assisted Intervention (MICCAI), 2016, Athène, France. pp.335-343, ⟨10.1007/978-3-319-46726-9_39⟩
Conference papers hal-01472890v1
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Efficient Computation of Attributes and Saliency Maps on Tree-Based Image Representations

Yongchao Xu , Edwin Carlinet , Thierry Géraud , Laurent Najman
Mathematical Morphology and Its Applications to Signal and Image Processing, Benediktsson, J.A.; Chanussot, J.; Najman, L.; Talbot, H., May 2015, Reykjavik, Iceland. pp.693-704, ⟨10.1007/978-3-319-18720-4_58⟩
Conference papers hal-01168781v1
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A Comparison of Some Morphological Filters for Improving OCR Performance

Laurent Mennillo , Jean Cousty , Laurent Najman
Mathematical Morphology and Its Applications to Signal and Image Processing, Benediktsson, J.A.; Chanussot, J.; Najman, L.; Talbot, H., May 2015, Reykjavik, Iceland. ⟨10.1007/978-3-319-18720-4_12⟩
Conference papers hal-01168641v1
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New characterizations of minimum spanning trees and of saliency maps based on quasi-flat zones

Jean Cousty , Laurent Najman , Yukiko Kenmochi , Silvio Guimarães
12th International Symposium on Mathematical Morphology (ISMM), Benediktsson, J.A.; Chanussot, J.; Najman, L.; Talbot,, May 2015, Reykjavik, Iceland. pp.205-216, ⟨10.1007/978-3-319-18720-4_18⟩
Conference papers hal-01148958v1
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Hierarchies and shape-space for PET image segmentation

Eloïse Grossiord , Hugues Talbot , Nicolas Passat , Michel Meignan , Pierre Tervé
International Symposium on Biomedical Imaging (ISBI), 2015, New York, United States. pp.1118-1121, ⟨10.1109/ISBI.2015.7164068⟩
Conference papers hal-01169944v1
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How to Make nD Functions Digitally Well-Composed in a Self-dual Way

Nicolas Boutry , Thierry Géraud , Laurent Najman
Mathematical Morphology and Its Applications to Signal and Image Processing, Benediktsson, J.A.; Chanussot, J.; Najman, L.; Talbot, H., May 2015, Reykjavik, Iceland. pp.561-572, ⟨10.1007/978-3-319-18720-4_47⟩
Conference papers hal-01168723v1
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A regionalized automated measurement of ciliary beating frequency

Élodie Puybareau , Hugues Talbot , G Pelle , B Louis , J.-F Papon
ISBI 2015, Apr 2015, New-York, United States. ⟨10.1109/ISBI.2015.7163927⟩
Conference papers hal-01154672v1
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When Convex Analysis Meets Mathematical Morphology on Graphs

Laurent Najman , Jean-Christophe Pesquet , Hugues Talbot
Mathematical Morphology and Its Applications to Signal and Image Processing, Benediktsson, J.A.; Chanussot, J.; Najman, L.; Talbot, H., May 2015, Reykjavik, Iceland. pp.473-484, ⟨10.1007/978-3-319-18720-4_40⟩
Conference papers hal-01168801v1

Hiérarchies et analyse dans l'espace des formes pour la segmentation des images de tomographie par émission de positons

Eloïse Grossiord , Hugues Talbot , Nicolas Passat , Michel Meignan , Pierre Tervé
Journée ISS France, 2015, Paris, France
Conference papers hal-01694936v1
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Shape-based analysis on component-graphs for multivalued image processing

Eloïse Grossiord , Benoît Naegel , Hugues Talbot , Nicolas Passat , Laurent Najman
International Symposium on Mathematical Morphology (ISMM), 2015, Reykjavik, Iceland. pp.446-457, ⟨10.1007/978-3-319-18720-4_38⟩
Conference papers hal-01168812v1
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Ranking orientation responses of path operators: Motivations, choices and algorithmics

Odyssée Merveille , Hugues Talbot , Laurent Najman , Nicolas Passat
International Symposium on Mathematical Morphology (ISMM), 2015, Reykjavik, Iceland. pp.633-644, ⟨10.1007/978-3-319-18720-4_53⟩
Conference papers hal-01168732v1
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Hierarchical image segmentation relying on a likelihood ratio test

Silvio Jamil F. Guimarães , Zenilton Kleber Gonçalves Do Patrocinio , Yukiko Kenmochi , Jean Cousty , Laurent Najman
ICIAP 2015, Sep 2015, Genova, Italy. ⟨10.1007/978-3-319-23234-8_3⟩
Conference papers hal-01229844v1
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How to make nD images Well-composed without interpolation

Nicolas Boutry , Thierry Géraud , Laurent Najman
International Conference on Image Processing (ICIP), Sep 2015, Quebec City, Canada. ⟨10.1109/ICIP.2015.7351181⟩
Conference papers hal-01134166v1
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Multicriteria 3D PET image segmentation

Francisco Javier Alvarez Padilla , Eloïse Grossiord , Barbara Romaniuk , Benoît Naegel , Camille Kurtz
Image Processing Theory, Tools and Applications (IPTA), 2015, Orléans, France. pp.346-351, ⟨10.1109/IPTA.2015.7367162⟩
Conference papers hal-01616446v1
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A mutual reference shape based on information theory

Stéphanie Jehan-Besson , C Tilmant , A de Cesare , A Lalande , A Cochet
International Conference on Image Processing ICIP, Oct 2014, Paris, France. pp.887 - 891, ⟨10.1109/ICIP.2014.7025178⟩
Conference papers hal-01081376v1
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Tubular structure filtering by ranking orientation responses of path operators

Odyssée Merveille , Hugues Talbot , Laurent Najman , Nicolas Passat
European Conference on Computer Vision (ECCV), 2014, Zürich, Switzerland. pp.203-218, ⟨10.1007/978-3-319-10605-2_14⟩
Conference papers hal-00990014v2
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Morphological Floodings and Optimal Cuts in Hierarchies

Jean Cousty , Laurent Najman
International Conference on Image Processing (ICIP), Oct 2014, Paris, France. ⟨10.1109/ICIP.2014.7025905⟩
Conference papers hal-01082353v1
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On making nD images well-composed by a self-dual local interpolation

Nicolas Boutry , Thierry Géraud , Laurent Najman
18th IAPR International Conference, DGCI 2014, Sep 2014, Sienna, Italy. pp.320-331, ⟨10.1007/978-3-319-09955-2_27⟩
Conference papers hal-01071624v1
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Meaningful Disjoint Level Lines Selection

Yongchao Xu , Edwin Carlinet , Thierry Géraud , Laurent Najman
International Conference on Image Processing (ICIP), Oct 2014, Paris, France
Conference papers hal-01082342v1
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Espaces des formes basés sur des arbres : définition et applications en traitement d'images et vision par ordinateur

Yongchao Xu , Thierry Géraud , Laurent Najman
Reconnaissance de Formes et Intelligence Artificielle (RFIA) 2014, Jun 2014, Rouen, France
Conference papers hal-00989112v1
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Tubular structure filtering by ranking orientation responses of path operators

Odyssée Merveille , Hugues Talbot , Laurent Najman , Nicolas Passat
Reims Image, 2014, Reims, France
Conference papers hal-01694899v1