Difference between revisions of "Etienne Le Quentrec"

Latest revision as of 11:42, 26 May 2021

PhD Student

ICube - IMAGeS 300 Bd Sébastien Brant BP 10413 67412 Illkirch CEDEX - France Bureau : C226 Courriel : elequentrec(at)unistra(dot)fr

PhD supervision

PhD director
- Mohamed Tajine
PhD supervisors
- Etienne Baudrier
- Loïc Mazo

Thesis subject :

When an object is numerically captured, the resulting image is pixelated and is described by integral coordinates. A lot of information is then lost. The goal of my thesis is to estimate the geometric features of the initial object (such as its perimeter) knowing only its digitization. More precisely, by modeling the digitization process, we are aiming to guarantee bounds on the estimation error of the geometric features. My work consists in introducing a new family of shapes (including regular shapes and polygons) whose boundary curvature is bounded, in proving the preservation of the topology of the digitization and in guaranteeing the robustness of length estimation and line integral on this family of shape. keyword: digital geometry, topology preservation, length estimation, line integral estimation, curvature.

Publications :

Education :

Baccalauréat 2011 (Vannes)
Preparatory schools to postgraduate schools 2011-2013 (Brest)
Bachelor Degree 2014 (Strasbourg)
Agrégation externe (teacher degree) in math 2016 (Strasbourg)
Master 2 Research and Innovation 2016-2017(Toulouse)
Master 2 MAPI3 2017-2018 (Toulouse)

Teaching :

Faculty of mathematics and computer sciences of Strasbourg :

2018-2019
- Practical exercises Prolog, Logic and Logical Programming (2nd y. Undergraduate computer sciences)
- Practical exercises Python, Algorithms and Data Structures (1st y. Undergraduate math)
2019-2020
- Theoretical and practical exercises Prolog, Logic and Logical Programming (2nd y. Undergraduate computer sciences)
- Theoretical and practical exercises Scilab, Applied Numerical Analysis (3rd y. Undergraduate computer sciences )
- Practical exercises Python, Algorithms and Data Structures (1st y. Undergraduate math)
2020-2021
- Practical exercises bash, Introduction to Computer Sciences and to Bash Scripts (1st y. Undergraduate math and computer sciences)
- Theoretical exercises, Algorithms and Data Structures (2nd y. Undergraduate computer sciences)
- Practical exercises C, Tools for programming (2nd y. Undergraduate computer sciences)

Participation to conferences and scientific events:

Conference Discrete Geometry and Mathematical Morphology 2021 (may 2021)
Meeting of french group of research Digital Geometry and Mathematical Morphology 2019
Conference Discrete Geometry for Computer Imagery 2019

Education during Thesis:

Divers:

President et co-founder of the association of young researchers of ICube
Participation to pedagogy workshop (animated by Basile Sauvage )
Participation to Fête de la Science 2019

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-<big>'''Doctorant'''</big>
+<big>'''PhD Student'''</big>
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 {| class="wikitable"
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-[[Fichier:Identite le quentrec.jpg|vignette]]
+[[File:Identite.jpg|thumb]]
-| ICube - MIV<br /> 300 Bd Sébastien Brant<br /> BP 10413<br />  67412 Illkirch CEDEX - France <br /><br />      Bureau : '''C226''' <br />
+| ICube - IMAGeS<br /> 300 Bd Sébastien Brant<br /> BP 10413<br />  67412 Illkirch CEDEX - France <br /><br />      Bureau : '''C226''' <br />
 Courriel : '''elequentrec(at)unistra(dot)fr'''<br />
@@ Line 16: / Line 16: @@
-==Encadrement==
+==PhD supervision==
-*Directeur de thèse
+*PhD director
 **Mohamed Tajine
-*Encadrants
+*PhD supervisors
 **[[Etienne_Baudrier|Etienne Baudrier]]
 **[[Loic_Mazo|Loïc Mazo]]
-==Sujet de Thèse :==
+==Thesis subject :==
-Lorsqu’un objet est pris en photos, l’image obtenue est pixelisée et est alors décrite par des coordonnées réelles. Beaucoup d’informations sont ainsi perdues. L’objectif de ma thèse est d’estimer les caractéristiques géométriques de l’objet de départ ( comme son périmètre) ne connaissant que sa discrétisation.  Plus précisément, je cherche, en modélisant le processus de discrétisation, à garantir des majorations de l’erreur d’estimation des caractéristiques géométriques. Mes travaux de thèse ont consisté à introduire une famille des formes (incluant formes régulières et polygonales) dont la courbure du bord est contrôlée, puis à démontrer que la topologie de leur discrétisation était préservée et à garantir la robustesse d’estimateurs de longueur et d’intégrale curviligne sur cette famille de formes.
+When an object is numerically captured, the resulting image is pixelated and is described by integral coordinates. A lot of information is then lost. The goal of my thesis is to estimate the geometric features of the initial object (such as its perimeter) knowing only its digitization. More precisely, by modeling the digitization process, we are aiming to guarantee bounds on the estimation error of the geometric features. My work consists in introducing a new family of shapes (including regular shapes and polygons) whose boundary curvature is bounded, in proving the preservation of the topology of the digitization and in guaranteeing the robustness of length estimation and line integral on this family of shape.
-*Mots-clefs : géométrie discrète, préservation de la topologie, estimation de longueur, estimation d’intégrale curviligne, courbure.
+keyword: digital geometry, topology preservation, length estimation, line integral estimation, curvature.
-== Formation :==
+==Publications :==
+<iframe key="papr" path="?author=le+quentrec&title=&team=&national=&project=&year1=&year2=&=#hideMenu" />
+== Education :==
 * Baccalauréat 2011 (Vannes)
-* Classes préparatoires MPSI-MP* 2011-2013 (Brest)
+* Preparatory schools to postgraduate schools 2011-2013 (Brest)
-* Licence 2014 (Strasbourg)
+* Bachelor Degree 2014 (Strasbourg)
-* Agrégation externe de mathématiques 2016 (Strasbourg)
+* Agrégation externe (teacher degree) in math 2016 (Strasbourg)
 * Master 2 Research and Innovation 2016-2017(Toulouse)
 * Master 2 MAPI3 2017-2018 (Toulouse)
-==Enseignement :==
+==Teaching :==
-=== [https://mathinfo.unistra.fr/ UFR de mathématiques et d'informatique de Strasbourg] :===
+=== [https://mathinfo.unistra.fr/ Faculty of mathematics and computer sciences of Strasbourg] :===
 *2018-2019
-** TP Prolog, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26114/ Logique et Programmation Logique] (Licence 2 informatique)
+** Practical exercises Prolog, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26114/ Logic and Logical Programming ] (2nd y. Undergraduate computer sciences)
-** TP Python, [https://mathinfo.unistra.fr/formations/licence/mathematiques/rof/ME14/FRUAI0673021VCOEN34167/ Algorithmique et Structures de Données] (Licence 1 mathématiques)
+** Practical exercises Python, [https://mathinfo.unistra.fr/formations/licence/mathematiques/rof/ME14/FRUAI0673021VCOEN34167/ Algorithms and Data Structures] (1st y. Undergraduate math)
 *2019-2020
-** TD et TP Prolog, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26114/ Logique et Programmation Logique] (Licence 2 informatique)
+** Theoretical and practical exercises Prolog, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26114/ Logic and Logical Programming] (2nd y. Undergraduate computer sciences)
-** TD et TP Scilab, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26087/ Analyse Numérique Appliquée] (Licence 3 informatique)
+** Theoretical and practical exercises Scilab, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26087/ Applied Numerical Analysis] (3rd y. Undergraduate computer sciences )
-** TP Python, [https://mathinfo.unistra.fr/formations/licence/mathematiques/rof/ME14/FRUAI0673021VCOEN34167/ Algorithmique et Structures de Données] (Licence 1 mathématiques)
+** Practical exercises Python, [https://mathinfo.unistra.fr/formations/licence/mathematiques/rof/ME14/FRUAI0673021VCOEN34167/ Algorithms and Data Structures] (1st y. Undergraduate math)
 *2020-2021
-** TP bash, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN25955/ Culture et Pratique de l'Informatique] (Licence 1 mathématiques-informatique)
+** Practical exercises bash, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN25955/ Introduction to Computer Sciences and to Bash Scripts] (1st y. Undergraduate math and computer sciences)
-** TD, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26116/ Structures de Données et Algorithmiques 1] (Licence 2 informatique)
+** Theoretical exercises, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26116/ Algorithms and Data Structures] (2nd y. Undergraduate computer sciences)
-** TP C, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26116/ Techniques de Développement] (Licence 2 informatique)
+** Practical exercises C, [https://mathinfo.unistra.fr/formations/licence/informatique/rof/ME6/FRUAI0673021VCOEN26116/ Tools for programming] (2nd y. Undergraduate computer sciences)
-== Participation aux conférences et aux événements scientifiques:==
+== Participation to conferences and scientific events:==
-* Conférence [https://www.dgmm2021.se/ Discrete Geometry and Mathematical Morphology 2021] (à venir)
+* Conference [https://www.dgmm2021.se/ Discrete Geometry and Mathematical Morphology 2021] (may 2021)
-* [http://gt-gdmm.u-bordeaux.fr/ Réunion du GT Géométrie Discrète Morphologie Mathématique 2019]
+* [http://gt-gdmm.u-bordeaux.fr/ Meeting of french group of research Digital Geometry and Mathematical Morphology 2019]
-* Conférence [https://dgci2019.sciencesconf.org/ Discrete Geometry for Computer Imagery 2019]
+* Conference [https://dgci2019.sciencesconf.org/ Discrete Geometry for Computer Imagery 2019]
-== Formation scientifique durant le doctorat:==
+== Education during Thesis:==
-* Conférence [https://dgdvc.sciencesconf.org/ Digital Geometry and Discrete Variational Calculus]
+* Conference [https://dgdvc.sciencesconf.org/ Digital Geometry and Discrete Variational Calculus]
-* [http://gt-gdmm.u-bordeaux.fr/ Réunion du GT Géométrie Discrète Morphologie Mathématique 2021]
+* [http://gt-gdmm.u-bordeaux.fr/ Meeting of french group of research Digital Geometry and Mathematical Morphology 2021]
-* [https://ejcim2020.sciencesconf.org/ École Jeunes Chercheurs en Informatique 2020]
+* [https://ejcim2020.sciencesconf.org/ Young Researchers School in Mathematical Computer Sciences 2020]
-* [https://conferences.cirm-math.fr/1991.html École Jeunes Chercheurs en Informatique Mathématique 2019]
+* [https://conferences.cirm-math.fr/1991.html Young Researchers School in Mathematical Computer Sciences 2019]
 ==Divers:==
-*Président et co-fondateur de l'association doctorantes Association des Jeunes Chercheurs d'ICube
+*President et co-founder of the association of young researchers of ICube
-*Participation aux cafés pédagogiques (animés par [https://igg.icube.unistra.fr/index.php/Basile_Sauvage Basile Sauvage] à l'ufr)
+*Participation to pedagogy workshop (animated by [https://igg.icube.unistra.fr/index.php/Basile_Sauvage Basile Sauvage] )
-*Participation à la [https://www.fetedelascience.fr/programme?identifiant=68803573 Fête de la Science 2019] au Vaisseau
+*Participation to [https://www.fetedelascience.fr/programme?identifiant=68803573 Fête de la Science 2019]
-==Publications :==
-<iframe key="papr" path="?author=le+quentrec&title=&team=&national=&project=&year1=&year2=&=#hideMenu" />