About me

Hello! My name is Sébastien Lefèvre, and I am currently a Full Professor in Computer Science at the University of Bretagne Sud (Vannes Institute of Technology) since September 2010. My research activities take part in the OBELIX group from IRISA laboratory. My main research topics are image analysis/processing, pattern recognition and indexing, machine learning and data mining with applications in remote sensing.

Keywords: Mathematical morphology, image segmentation, hierarchical representations, scale-space, data mining, machine learning, remote sensing


Here are some latest actualities:
  • January 2016: Workshop on trees for computer vision (speakers: J.Matas, P.Salembier, M.Wilkinson, E.Aptoula) on January, 25th
  • January 2016: PhD thesis of Petra Bosilj to be defended on January, 25th)
  • December 2015: Paper presented at MMT 2015 (joint work with N.Ghouaiel)
  • November 2015: 2 Posters presented at Merigeo 2015 (joint works with: R.Giudici and L.Courtrai; M.Laroze and L.Courtrai)
  • November 2015: Session on Big Data in Earth Observation organized within the IRISA Data Science Symposium (co-chair T.Corpetti)
  • October 2015: Attended IIM 2015 as a Keynote and presented paper (joint work with P.Bosilj, E.Aptoula and E.Kijak)
  • October 2015: Paper presented at ACIVS 2015 (joint work with F.Merciol)
  • October 2015: 2 new PhD students: Roberto Giudici (supervision with L.Courtrai) and Nicolas Audebert (supervision with B. Le Saux, ONERA)
  • September 2015: Paper presented at ICIP 2015 (joint work with P.Bosilj, M.Wilkinson, E.Kijak)
  • September 2015: Paper presented at BMVC 2015 (joint work with P.Bosilj and E.Kijak)
  • July 2015: Paper presented at IGARSS 2015 (joint work with F.Merciol)
  • July 2015: Hosted visit of Erchan Aptoula from Okan University (Turkey), Jinchang Ren from University of Strathclyde (UK), Phil Hwang from Scottish Marine Institute (UK)
  • May 2015: 1 new postdoc: Bharath Bushan
  • May 2015: 3 papers presented at ISMM 2015 (joint works with: P.Bosilj, M.Wilkinson, E.Kijak; A.Al-Dujaili, F.Merciol; V.Curic, C.Luengo)
  • May 2015: Paper presented at GbR 2015 (joint work with Y.Cui and L.Chapel)
  • April 2015: 2 new internship students: Antoine Sauray (supervision with F.Merciol) and Mathieu Laroze (supervision with L.Courtrai)
  • December 2014: Hosted visit of Robert Jenssen from Tromsø, Norway
  • November 2014: Visited labs in Denmark (Blåtand program)
  • October 2014: Attended and presented paper at ICIP 2014 (joint work with E.Aptoula and N.Courty)
  • August 2014: Attended ICPR 2014 in Stockholm, Sweden
  • August 2014: Attended and presented paper at PRRS 2014 (joint work with L.Courtrai)
  • June 2014: Hosted visit of Cris Luengo from Uppsala University (Sweden)
  • June 2014: Hosted visit of Vladimir Curic from Uppsala University (Sweden)
  • May 2014: 1 new internship student: Abdullah Al-Dujaili from NTU Singapore (supervision with F.Merciol)
  • April 2014: Hosted visit of Norman Kerle from ITC/University of Twente (Netherlands)
  • April 2014: 2 new internship students: Mathieu Meunier (supervision with F.Merciol and P.Bosilj) and Steven Kerjouan (supervision with L.Coutrai and Ronan Pasco/SIAGM)
  • March 2014: Paper presented at IIM 2014 (joint work with F.Merciol and L.Chapel)
  • March 2014: Special Session on Image Retrieval in Remote Sensing to be held within (CBMI 2014)
  • November 2013: Kick-off of the ASTERIX project (with OSUR Rennes, LIVE Strasbourg and DYNAFOR Toulouse) aiming to address pattern recognition and machine learning issues faced with complex data from remote sensing (2013-2017, ANR JCJC funding)
  • October 2013: Kick-off of the SENSE project (with Lab-STICC) aiming to design an artificial retina mimicking the human eye (2013-2016, Labex CominLabs funding)
  • October 2013: 2 new PhD students: Romain Huet (supervision with N.Courty and Y. Le Guyadec) and Yanwei Cui (supervision with L.Chapel)
  • September 2013: Papers presented at GRETSI 2013 (joint work with F.Merciol and L.Chapel) and ICIAP 2013 (joint work with P.Bosilj and E.Kijak)
  • August 2013: Visited the University of Eastern Finland in Joensuu (SIPU group of Prof. P.Franti)


Current positions

  • Deputy-head of the doctoral school SICMA
  • Head of the OBELIX research team (IRISA, UBS/CNRS)
  • Teaching within Vannes Institute of Technology (IUT Vannes), UBS
  • Research within IRISA, a Joint Research Institute from CNRS, INRIA, UR1, UBS, Telecom Bretagne, ENS Rennes, INSA Rennes, Supelec

Short Vitae

  • since 2010. Full Professor at the University of South Brittany
  • 2012-2013. Head of the UBS Computer Science Lab (Vannes site of IRISA)
  • 2009-2010. Invited scientist within INRIA Rennes Bretagne Atlantique (TEXMEX team)
  • 2009. Habilitation à diriger des recherches (HDR) from University of Strasbourg
  • 2003-2010. Associate professor (Maître de Conférences) at the University of Strasbourg
  • 2002-2003. Assistant professor (ATER) at the University of Tours
  • 2002. Ph.D. degree at University of Tours, funded by ANRT & ATOS Origin, under the direction of Nicole Vincent.
  • 1999. DEA in System Control, University of Technology of Compiègne, equivalent to a Master Degree in Computer Science and Engineering,
  • 1999. Engineer diploma at UTC (University of Technology of Compiègne), Computer Engineering department, a French engineering school, equivalent to a Master Degree in Engineering.

PhD Students

I am (or was) implied in the advising process of the following PhD thesis:

  • Erchan Aptoula, who obtained his PhD thesis in 2008, supervised with Christian Ronse,
  • Sébastien Derivaux, who obtained his PhD thesis in 2009, supervised wit Jerzy Korczak and Cédric Wemmert,
  • Benjamin Perret, who finished his PhD thesis in 2010, supervised with Christophe Collet, Erik Slezak, and Vincent Mazet,
  • Jonathan Weber, who finished his PhD thesis in 2010, supervised with Pierre Gançarski.

  • Petra Bosilj, (started in 2012), supervised with Ewa Kijak.
  • Romain Huet, (started in 2013), supervised with Nicolas Courty and Yann Le Guyadec.
  • Yanwei Cui, (started in 2013), supervised with Laetitia Chapel.
  • Roberto Giudici, (started in 2015), supervised with Luc Courtrai.
  • Nicolas Audebert, (started in 2015), supervised with Bertrand Le Saux (ONERA).


Under construction.


The complete list can be found on HAL or my google scholar webpage. A local repository is also available for both my publications and talks.

HAL or my



Laboratoire IRISA
Campus de Tohannic
56000 Vannes, France
Phone : +33 (0)2 97 01 72 66
Sec. : +33 (0)2 97 01 72 35
Fax : +33 (0)2 97 01 72 79

In order to reach me

sebastien.lefevre _at_ irisa.fr