Phuc Ngo
68
Documents
Présentation
From Sep. 2014, I joined [Université de Lorraine](https://www.univ-lorraine.fr/) as an associate professor. More precisely, I do my teaching at Computer Science departement of the [Faculté des Sciences et Technology (FST) Nancy](http://fst.univ-lorraine.fr). Also, I am a member of [Adagio team](http://adagio.loria.fr/) of the laboratory [LORIA](http://www.loria.fr).
Previously, I was a postdoctoral researcher at Image, Processing and Tomography Lab of [ CEA](https://hal.archives-ouvertes.fr/www.cea.fr/)-Saclay, France. I was working on a project about volumic accelerated reconstruction algorithm in X-ray tomography for early osteoarthrisis diagnostic, low dose and low cost.
I received my PhD in Oct. 2013 from [ Université Paris-Est Marne-la-Vallée (UPEMLV)](http://www.univ-paris-est.fr/fr/), France. My thesis is entitled **Rigid transformations on 2D digital images: Combinatorial and topological analysis**, and was carried out in the A3SI team of the [ Laboratoire d'Informatique Gaspard Monge (LIGM) ](http://igm.univ-mlv.fr/LIGM) at [ESIEE-Paris](http://www.CIMS./) Engineering school, under the supervision of Prof. [ Yukiko Kenmochi](http://www.esiee.fr/~kenmochy/index-eng.html) and [ Hugues Talbot ](http://www.esiee.fr/~talboth/)and [Nicolas Passat](http://crestic.univ-reims.fr/membre/1542-nicolas-passat).
My research topic is in the area of **Discrete Geometry and Topology**, applied for Computer Vision and Image Analysis. I focus in particular on rigid transformations (i.e., transformations composed of rotations and translations) and the combinatorial structure modelling the parameter space of such transformation on arbitrary finite subset of Z2.
I am also interested in **Tomographic Imaging**, and my post doctoral project was on 3D reconstruction algorithms based on sparse reconstruction with TV regularization in X-ray tomography (CT).
I am currently working on **Digital Curve Analysis**. More precisely, I study the geometrical characteristics of noisy digital contours using the discrete structures such as maximal segment, blurred segment, tangent cover. I am also working on subjects related to **Wood Image Analysis** such as pith detection, wood-log segmentation and wood detect detection.
Publications
Directional Filter for Tree Ring DetectionICPRAM, 2024, Rome, Italy. pp.852-859, ⟨10.5220/0012457000003654⟩
Communication dans un congrès
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Bijectivity analysis of finite rotations on Z2: A hierarchical approachInternational Conference on Discrete Geometry and Mathematical Morphology (DGMM), 2024, Florence, Italy. pp.3-15, ⟨10.1007/978-3-031-57793-2_1⟩
Communication dans un congrès
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Light U-Net with a New Morphological Attention Gate Model Application to Analyse Wood SectionsICPRAM 2023 - 12th International Conference on Pattern Recognition Applications and Methods, Feb 2023, Lisbon, Portugal. pp.759-766, ⟨10.5220/0011626800003411⟩
Communication dans un congrès
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OpenCCO : Une implémentation de l’algorithme CCO pour la construction d’arbres vasculaires 2D et 3DAtelier R-Vessel-X 2023, Jun 2023, Lyon, France
Communication dans un congrès
hal-04133361v1
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Détection des singularités de l'écorce à partir de données Lidar en vue du classement qualitéTRIDIFOR – Méthodes innovantes d’analyse de données 3D en forêt, Sep 2022, Québec, Canada
Communication dans un congrès
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Extraction de structures linéaires archéomorphologiques de données LiDAR brutes en contexte montagneuxRemuer Ciel et Terre. L'apport du LiDAR en archéologie, Apr 2022, Saint-Etienne-lès-Remiremont, France
Communication dans un congrès
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Digital line segment detection for table reconstruction in document imagesImage Analysis and Processing – ICIAP 2022, May 2022, Lecce (ITALY), Italy. pp.211-224, ⟨10.1007/978-3-031-06430-2_18⟩
Communication dans un congrès
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Automatic forest road extraction from LiDAR data using convolutional neural networksReproducible Research in Pattern Recognition (RRPR), Aug 2022, Montreal, Canada. pp.91-107, ⟨10.1007/978-3-031-40773-4_8⟩
Communication dans un congrès
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Transformations affines discrètes sous contraintes topologiques et géométriques. Approche d'optimisation sur les complexes cellulairesJournées du Groupe de Travail en Géométrie Discrète et Morphologie Mathématique (GDMM), 2022, Bordeaux, France
Communication dans un congrès
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Tangential cover for 3D irregular noisy digital curvesInternational Conference on Discrete Geometry and Mathematical Morphology (DGMM 2022), Oct 2022, Strasbourg, France. pp.315--329, ⟨10.1007/978-3-031-19897-7_25⟩
Communication dans un congrès
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Promoting Reproducibility of Research Results in International EventsReproducible Research in Pattern Recognition (RRPR), Aug 2022, Montreal, Canada. pp.111-123, ⟨10.1007/978-3-031-40773-4_9⟩
Communication dans un congrès
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Quasi-regularity verification for 2D polygonal objects based on medial axis analysisInternational Conference on Image Processing (ICIP), Sep 2021, Anchorage, Alaska, United States. pp.1584-1588, ⟨10.1109/ICIP42928.2021.9506543⟩
Communication dans un congrès
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Pith Estimation on Tree Log End ImagesReproducible Research on Pattern Recognition (RRPR), 2021, Milan, Italy. pp.101-120, ⟨10.1007/978-3-030-76423-4_7⟩
Communication dans un congrès
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Digital Straight Segment Filter for Geometric DescriptionDGMM 2021 - IAPR International Conference on Discrete Geometry and Mathematical Morphology, May 2021, Uppsala, Sweden. pp.255-268, ⟨10.1007/978-3-030-76657-3_18⟩
Communication dans un congrès
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Automatic forest road extraction from LiDAR data of mountainous areasDGMM 2021 - IAPR International Conference on Discrete Geometry and Mathematical Morphology, May 2021, Uppsala, Sweden. pp.93-106, ⟨10.1007/978-3-030-76657-3_6⟩
Communication dans un congrès
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Homotopic Digital Rigid Motion: An Optimization Approach on Cellular ComplexesInternational Conference on Discrete Geometry and Mathematical Morphology (DGMM), 2021, Uppsala (virtual), Sweden. pp.189-201, ⟨10.1007/978-3-030-76657-3_13⟩
Communication dans un congrès
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Description géometrique à l'aide de segments discretsJournée du Groupe de Travail de Géométrie Discrète et Morphologie Mathématique (GT GDMM), 2021, Nancy, France
Communication dans un congrès
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Tree Defect Segmentation using Geometric Features and CNNReproducible Research on Pattern Recognition (RRPR), 2021, Milan, Italy. pp.80-100, ⟨10.1007/978-3-030-76423-4_6⟩
Communication dans un congrès
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Digital hyperplane fitting20th International Workshop on Combinatorial Image Analysis (IWCIA), Jul 2020, Novi Sad, Serbia. pp.164-180, ⟨10.1007/978-3-030-51002-2_12⟩
Communication dans un congrès
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Rigid motions in the cubic grid: A discussion on topological issuesDiscrete Geometry for Computer Imagery (DGCI), 2019, Marne-la-Vallée, France. pp.127-140, ⟨10.1007/978-3-030-14085-4_11⟩
Communication dans un congrès
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Thick Line Segment Detection with Fast Directional TrackingICIAP 2019 -20th International Conference on Image Analysis and Processing, Sep 2019, trento, Italy. pp.159-170, ⟨10.1007/978-3-030-30645-8_15⟩
Communication dans un congrès
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A discrete approach for polygonal approximation of irregular noise contoursCAIP 2019 - Computer Analysis of Images and Patterns, Sep 2019, Salerno, Italy. pp.433-446, ⟨10.1007/978-3-030-29888-3_35⟩
Communication dans un congrès
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A new algorithm to automatically detect the pith on rough log-end images21st International Nondestructive Testing and Evaluation (NDTE) of Wood Symposium, Sep 2019, Freiburg, Germany
Communication dans un congrès
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Discrete regular polygons for digital shape rigid motion via polygonizationInternational Workshop on Reproducible Research on Pattern Recognition (RRPR), 2018, Beijing, China. pp.55-70, ⟨10.1007/978-3-030-23987-9_4⟩
Communication dans un congrès
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Transformations rigides pour les objets discrets non-convexes en 2DJournées du Groupe de Travail en Modélisation Géométrique (GTMG), 2018, Aix-en-Provence, France
Communication dans un congrès
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Geometric-preserving rigid motions of digital objectsJournées Informatique et Géométrie (JIG), 2018, Lyon, France
Communication dans un congrès
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Convexity invariance of voxel objects under rigid motionsInternational Conference on Pattern Recognition (ICPR), 2018, Beijing, China. pp.1157-1162, ⟨10.1109/ICPR.2018.8545023⟩
Communication dans un congrès
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A Statistical-Topological Feature Combination for Recognition of Isolated Hand Gestures from Kinect Based Depth ImagesIWCIA, Jun 2017, Plovdiv, Bulgaria. ⟨10.1007/978-3-319-59108-7⟩
Communication dans un congrès
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Convexity-preserving rigid motions of 2D digital objectsDiscrete Geometry for Computer Imagery (DGCI), 2017, Vienna, Austria. pp.69-81, ⟨10.1007/978-3-319-66272-5_7⟩
Communication dans un congrès
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Greyscale Image Vectorization from Geometric Digital Contour RepresentationsDGCI'17 - 20th International Conference on Discrete Geometry for Computer Imagery, Sep 2017, Vienna, Austria. pp.2379 - 331, ⟨10.1007/978-3-319-66272-5_26⟩
Communication dans un congrès
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An algorithm to decompose noisy digital contoursRRPR 2016- 1st Workshop on Reproducible Research in Pattern Recognition, Dec 2016, Cancun, Mexico. ⟨10.1007/978-3-319-56414-2_10⟩
Communication dans un congrès
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A discrete approach for decomposing noisy digital contours into arcs and segmentsACCV Workshop 2016, Nov 2016, Taipei, Taiwan. ⟨10.1007/978-3-319-54427-4_36⟩
Communication dans un congrès
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Adaptive Tangential Cover for Noisy Digital ContoursDGCI 2016 - 19th international conference on Discrete Geometry for Computer Imagery, Apr 2016, Nantes, France. pp.439-451, ⟨10.1007/978-3-319-32360-2_34⟩
Communication dans un congrès
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Efficient dominant point detection based on discrete curve structureIWCIA 2015, Nov 2015, Kolkata, India. pp.143-156, ⟨10.1007/978-3-319-26145-4_11⟩
Communication dans un congrès
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Efficient neighbourhood computing for discrete rigid transformation graph searchDiscrete Geometry for Computer Imagery (DGCI), 2014, Sienne, Italy. pp.99-110, ⟨10.1007/978-3-319-09955-2_9⟩
Communication dans un congrès
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Préservation topologique des images numériques 2D par transformations rigidesJournées du Groupe de Travail en Géométrie Discrète (GT GeoDis), 2013, Paris, France
Communication dans un congrès
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Sufficient conditions for topological invariance of 2D images under rigid transformationsDiscrete Geometry for Computer Imagery (DGCI), 2013, Seville, Spain. pp.155-168, ⟨10.1007/978-3-642-37067-0_14⟩
Communication dans un congrès
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Well-composed images and rigid transformationsInternational Conference on Image Processing (ICIP), 2013, Melbourne, Australia. pp.3035-3039, ⟨10.1109/ICIP.2013.6738625⟩
Communication dans un congrès
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Discrete rigid transformation graph search for 2D image registrationPSIVT Workshops, 2013, Guanajuato, Mexico. pp.228-239, ⟨10.1007/978-3-642-53926-8_21⟩
Communication dans un congrès
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Digital shapes, digital boundaries and rigid transformations: A topological discussionCourbure discrète : théorie et applications, 2013, Luminy, France. pp.195-201
Communication dans un congrès
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Combinatorial properties of 2D discrete rigid transformations under pixel-invariance constraintsInternational Workshop on Combinatorial Image Analysis (IWCIA), 2012, Austin, United States. pp.234-248, ⟨10.1007/978-3-642-34732-0_18⟩
Communication dans un congrès
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1400 years of man-environment interactions and soil evolution in the Saint-Mont mountain (Remiremont, Vosges)Historical Ecology for the future - International conference in historical ecology, May 2021, Metz, France. , 2021
Poster de conférence
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Détection automatique de la moelle sur des images d'extrémités de grumes de Douglas brutes de sciageGDR 2019 - 8èmes Journées du Groupement de Recherche 3544 Sciences du Bois, Nov 2019, Epinal, France
Poster de conférence
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Efficient Exact Computation for Incremental Discrete Rotations using Continued FractionInternational conferences on Discrete Geometry for Computer Imagery (DGCI), Apr 2011, Nancy, France
Poster de conférence
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Traçabilité et évaluation de la qualité des bois ronds à partir de l'analyse d'images d'extrémités de grumes ou de billonsINRAE. 2022
Rapport
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Gauss Digitization of Simple Polygons[Research Report] LORIA (Université de Lorraine, CNRS, INRIA). 2021
Rapport
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Complementary Experiments of the Thick Line Segment Detection Algorithm: Evaluation of ADS and ATC Concepts[Research Report] LORIA (Université de Lorraine, CNRS, INRIA). 2019
Rapport
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Exact Comparison of Quadratic Irrationals[Research Report] LIGM. 2011
Rapport
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Transformations rigides sur les images numériques 2D : analyse combinatoire et topologiqueImage Processing [eess.IV]. Université Paris-Est, 2013. English. ⟨NNT : 2013PEST1091⟩
Thèse
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Analyse et manipulation d’objets discretsInformatique. Université de Lorraine, 2022
HDR
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