Programme Scientifique

Keynote: Stefan Zellmann, Senior Researcher Compute Science (lundi 14h-15h)

Hardware-Accelerated Ray Tracing for Sci-Vis and Beyond     

Abstract: Using ray tracing for sci-vis is an obvious choice since GPU vendors integrate that technique as first-class citizen in their chip designs. Apart from the obvious approach to use ray tracing cores for first-hit computation, these hardware units are generally useful as they provide access to optimized tree traversal. If developers are able to map their algorithms to compatible problems implementable on that hardware they can exploit those properties and benefit from hardware acceleration. The talk will discuss applications and algorithms from sci-vis and beyond, which, by using hardware ray tracing, can be accelerated significantly. These algorithms include random access to spatial field structures or neighbor queries on scattered data or graphs. The talk will also discuss challenges when mapping such algorithms to the hardware, such as the need for clever combinations of hardware and software traversal in cases where multiple data structures are involved.

Biography: Stefan Zellmann received his degree in information systems in 2009, specializing on markerless augmented reality on mobile phones. In 2014 he received his PhD in computer science from the University of Cologne. During his PhD studies he specialized in rendering on many-core systems and co-processors, with a focus on scientific visualization, volume rendering, and real-time ray tracing. In 2021 he finished his post-doctoral studies on real-time ray tracing and became a private lecturer (Habilitation) at the University of Cologne.

From 2017 to 2018 he worked as a guest researcher at the University of California, San Diego, on volume rendering in virtual reality. From 2021 he became a senior researcher at the Bonn-Rhein-Sieg University of Applied Sciences. In 2022 he became PI of a research project on visualization of adaptive mesh refinement data at the University of Cologne.

Stefan Zellmann is active in the open source community and regularly contributes to projects on real-time ray tracing and scientific visualization.

Session : Keynote (lundi 14h-15h)

• Stefan Zellmann
  "Hardware-Accelerated Ray Tracing for Sci-Vis and Beyond"

Session : VolVis (lundi 15h20-16h20)

• Mathieu Westphal 
  "Designing a user centric VR UI/UX for scientific visualization" [PDF]
• Antoine Thebault, Stéphanie Prévost, Laurent Lucas & Leonardo Brenner
  "Visualisation Volumique Interactive Out-of-Core de séquences temporelles de données 3D multivariées" [PDF]
• Vinojan Rajendiran, Jonathan Sarton, Jean-Michel Dischler
  "Volume visualization with ray-guided segment query" [PDF]

Session : InfoVis (lundi 16h25-17h05)

• Katerina Batziakoudi, Stéphanie Rey et Jean-Daniel Fekete
  "Remise en cause de l’échelle logarithmique pour les diagrammes en bar" [PDF]
• Ambre Assor, Mickaël Sereno et Jean-Daniel Fekete
  "Visualisation à l’Echelle de Séquences d’Evènements Issus de Dossiers Médicaux Electroniques" [PDF]

Session : FlowVis (lundi 17h10-17h50)

• Nicolas Courilleau, Louis-Wilhelm Raban-Schürmann, Daniel Meneveaux, Kamel Abed-Meraim & Anas Sakout
  "Lightweight Visualisation for Vortex Tracking in Airflow Acquisition" [PDF]
• Cyprien Plateau–Holleville & Bruno Lévy
  "Rendu pour la simulation de fluide basée transport optimal semi-discret partiel" [PDF]

Session : CADVis (mardi 8h45-9h45)

• Michael Migliore
  "F3D - A fast and minimalist 3D viewer" [PDF]
• Khalfoun Rayan et Maxime Stauffert
  "Transformation entre représentations NURBS et Bézier" [PDF]
• Tristan Cheny, Etienne Corman, Nicolas Ray, Franck Ledoux, Dmitry Sokolov
  "Utilisation d’axes médians pour le maillage quadrangulaire structure par blocs" [PDF]

Session : TopoVis (mardi 10h05-10h45)

• Mohamed Kissi, Mathieu Pont, Joshua A. Levine & Julien Tierny
  "Un Solveur Pratique pour la Simplification Topologique de Données Scalaires" [PDF]
• Mattéo Clémot, Julie Digne & Julien Tierny
  "Réduction de dimension sous contraintes topologiques" [PDF]

Demos (lundi 17h55-19h)

• Martial Mancip
  "Mur d'images virtuel VRWall avec Hololens2"
• Michael Migliore
  "F3D - A fast and minimalist 3D viewer" 

Table ronde (mardi 10h50-11h50)

• Tobias Isenberg, DR Inria, Université Paris-Saclay
• Bart Lamiroy, PR URCA - resp. du programme IA4U
• Mathieu Westphal, Ingénieur expert chez Kitware
• Maxime Stauffert, Ingénieur Chercheur, CEA
  
  De l’analyse à l’impact : la visualisation face aux mutations de l’IA
  
  Cette table ronde proposera un échange autour des dynamiques actuelles entre intelligence artificielle et visualisation. Elle explorera les avancées récentes du domaine, les thématiques arrivées à maturité ou en perte de vitesse, ainsi que les verrous scientifiques majeurs. L’objectif est d’interroger les grands enjeux de recherche à venir, tout en réfléchissant à la place croissante de la visualisation dans la société. Un éclairage particulier sera porté sur la position de la recherche française dans le paysage international, à travers le prisme du dialogue entre IA et visualisation.