About

Since 2024, I am a post-doc at the Catholic University of Louvain in Louvain-la-Neuve (Belgium), where I work on injective deformation of meshes in the context of the X-mesh project, lead by Jean-François Remacle and Nicolas Moës.

I obtained a PhD from the University of Lorraine under the supervision of Etienne Corman and Dmitry Sokolov. I defended my PhD in December 2023.

Research Interests

  • Geometry Processing
  • Meshing
  • Mesh parametrization
  • Deep learning and neural implicit representations

Contact infos

Email: guillaume.coiffier [AT] uclouvain.be
Address: Avenue Georges Lemaitre 4, 1348 Ottignies-Louvain-la-Neuve, Belgique
Office: Euler Building, 2nd floor, A221


Current and past positions
  • [Since Jan. 2024] Post-doc / Research Assistant
    Université Catholique de Louvain, Louvain-la-Neuve, Belgium
    Meshing sharp physical interfaces in finite element simulation
    Member of the X-mesh team lead by Jean-François Remacle and Nicolas Moës

  • [Sep. 2020 - Dec. 2023] PhD Student
    LORIA, University of Lorraine, Nancy, France
    Global parametrization algorithmes for quadmeshing
    Supervisors: Dmitry Sokolov and Etienne Corman
    Thesis defended on December 6th, 2023

  • [Jan. 2020 - June 2020] Research internship
    IMT Atlantique, Brest, France
    Automatic Architecture Search for Deep Neural Networks
    Supervised by Vincent Gripon

  • [Oct. 2019 - Dec. 2019] Research internship
    LORIA, University of Lorraine, Nancy, France
    Constrained mesh fitting on 3D point clouds
    Supervised by Dmitry Sokolov and Nicolas Ray

  • [Feb. 2020 - July 2020] Research internship
    LIRIS, INSA de Lyon, Lyon, France
    Deep neural network simplification using pattern mining approaches
    Supervised by Marc Plantevit, Stefan Duffner and Céline Robardet

  • [May 2018 - July 2018] Research internship
    CHYN, Université de Neuchâtel, Suisse
    Constrained 3D synthesis out of 2D examples using Generative Adversarial Networks
    Encadré par Philippe Renard

  • [May 2017 - June 2017] Research internship
    Inria Rhône-Alpes, Grenoble, France
    Congestion games and Wardrop equilibria
    Supervised by Corinne Touati


Education

[2020-2023] PhD, Global Parametrization Algorithms for Quadmeshing – LORIA, Université de Lorraine, Nancy, France – Under the supervision of Dmitry Sokolov and Etienne Corman

[2016-2020] Ms Student in Computer Science – École Normale Supérieure de Lyon, Lyon, France

[2013-2016] French “Preparatory classes”, Mathematics-Physics-Computer Science – Lycée Henri Wallon, Valenciennes, France


Publications

Talks

SIGGRAPH 2024 : The Method of Moving Frames for Surface Global Parametrization

SGP 2024 : 1-Lipschitz Neural Distance Fields

R-GTMG 2024 : Robust Neural Distance Fields using 1-Lipschitz Neural Networks [Slides]
         🏆 Best Presentation Award

JFIG 2023 : The Method of Moving Frames for Surface Global Parametrization [Slides]

Frames 2023 : Towards grid-preserving surface parametrization in a single optimization

Frames 2021 : Computing Valid Global Seamless Parametrizations in 2D and 3D

JFIG 2020 : Ajustement de surfaces paramétriques sur nuages de points [Video]
       🏆 2nd Best Paper Award

Petroleum Geostatistics 2019 : 3D Geological Image Synthesis from 2D Examples Using Generative Adversarial Networks [Abstract]


Teaching

[2024-2025] Assistant Professor, École Polytechnique de Louvain

[2022-2023] Assistant Professor, École des Mines de Nancy

  • Programmation and Data Structures
  • Operational Research
  • Algorithms and Complexity

[2020-2022] Assistant Professor, Faculty of Sciences and Technology, Nancy, France

  • Algorithms and programmation in Python
  • Coding Project: Video game in C
  • Automata, Grammars and Languages
  • Optimization, Operational Research

[2018-2021] Advisor for the boot camp Girls Can Code!, Lyon, France


Awards
  • Best paper award for 1-Lipschitz Neural Distance Fields, Symposium on Geometry Processing, 2024

  • Université de Lorraine’s 2nd price in Ma thèse en 180 secondes, a French-speaking contest of popular science.

  • 2nd best paper for Ajustement de surfaces paramétriques sur nuages de points (Video), JFIG 2021