LJK (UMR 5224)

Laboratory Jean Kuntzmann

Lab home-page : http://ljk.imag.fr/
AERES evaluation report : Report May 2010 (pdf, 162,46 ko)
Publications'URLs : LJK's publications
Applied mathematics and computer graphics
Topics Statistics, applied probabilities, machine learning, PDE's, dynamical systems, optimization, numerical analysis, symbolic and scientific computing, stochastic computing, algorithmic geometry, image processing, computer vision, animation
Highlights and distinctions Marie-Paule Cani 2007 Irène Joliot-Curie Prize
2011 Eurographics Outstanding technical award
Georges-Henri Cottet Senior member of Institut Universitaire de France (since 2009)
Anestis Antoniadis 2010 Pierre Simon de Laplace Prize
Antoine Girard 2009 George Axelby Outstanding Paper Award
Sylvain Lefebvre 2010 Eurographics Young Researchers Award
François Sillion 2011 Eurographics Outstanding technical award
AERES assessment A+ "The international visibility and scientific excellence of many teams is one of the strong points of LJK"
Faculty 115
Researchers 38
Habilitation 43
"Produisants AERES" 88%
PhD students 94
Publications Journals : 119
Conferences: 88
Funding K€
Mean value per year


The Laboratoire Jean Kuntzmann (LJK) is a research center in applied mathematics and computer graphics. Bringing together 15 teams from statistics to cryptology and computer vision, the LJK fosters research in computational modeling, that links a wide spectrum of mathematical and computational techniques, from analysis to algorithms. A second trademark of the research developed at the LJK is its marked interdisciplinary character. A recent CNRS survey identifies more than 50 current or recent interactions with scientists from other fields, that resulted in co-authored publications. Interactions are particularly strong with biology, health-sciences, environmental sciences and physics. As a result, LJK members are actively contributing to some of the great scientific challenges of our time, but also stimulate new mathematical development motivated by other sciences. Examples of applications of our research include new numerical models for fluid/structure interactions, coupling of models and data assimilation for meteorology, verification and analysis of hybrid systems, stochastic optimization and stochastic algorithms, statistical methods for image analysis and data classification, novel methods for image classification that allow dealing with very large databases, and real time animation of physically plausible complex scenes. The LJK has recently launched two exciting projects that should boost its attractivity:

  • MaiMoSINe (maison de la modélisation) designed as a hub for interdisciplinay collaborative research in environmental sciences and nanosciences, and as a training center for potential users (from the academic world or industry) of new mathematical tools and developments.
  • AMIES, an agency for the promotion of mathematics in industry (a project with a national scope, selected in the first labex contest).

Since 2007, 22 ANR projects have been coordinated by members of the LJK, as well as 2 FP6 STREPS and 2 Marie-Curie training networks, 2 national GDR. Members of the LJK have organized several major national and international conferences (e.g. SMAI 2007, ECCV 2008).In terms of valorisation, the LJK has contracts with several industrial partners, either large groups (e.g. AXA, Biomérieux, Dassault, GDF Suez, EDF, Xerox) or small businesses (e.g. Dalmin SPA, Milpix, Infiniscale).