Didier COQUIN

University Professor, IUT Annecy, Networks and Telecoms Department

Contact

E-mail: didier.coquin -@- univ-smb.fr

Telephone: +33(0) 4 50 09 65 46 - fax: +33(0) 4 50 09 65 .

Office: A118

Address: LISTIC - Polytech Annecy-Chambéry, BP 80439, 74944 Annecy le Vieux Cedex, France

Research topics.

Since July 2018, my work has been in theAFuTé group(Learning, Fusionand Remote Sensing). My research work revolves around the general theme of using fusion methods for decision support in a context of imperfect, uncertain or even complementary data. It is structured around 3 axes:

  • Interval approach and thick fuzzy sets
  • Credibilist approaches
  • Merging additional information

from September 2014 to July 2018: Leader of the Combination and Decision (CoDe) group.

  • My work focuses on the combination of sub-classifiers for tree species recognition based on a photo of one of its leaves. The recognition task is made complex since there is high intra-class variability and high inter-class similarity. Belief function theory is applied to the output of each sub-classifier (random forests) to refine the results by reducing the effect of uncertainty on leaf characteristics. New work has been carried out on the architecture of the fusion system, so that it can adapt to the different modalities (leaf, bark, fruit, flower, ....) present in the input. We developed a hierarchical fusion system by combining the different outputs of the system using belief function theory.
  • I am also working on multi-sensor information fusion using belief function theory. In one application, we have combined the output of a Takagi Sugeno constant-conclusion fuzzy system with a credibilistic combination system that removes ambiguities about the color detected by the cameras. In a second application, we improved the perception of the humanoid robot NAO, by adding 2D and 3D cameras, in its immediate environment. Each camera provides information in the form of an image. After processing and extracting the useful information, we merged these different sources to make a decision. The combination by the Dempster-Shafer operator increases the rate of good decisions.
  • In collaboration with the EDYTEM laboratory, we have been working on multispectral image processing and data spatialization for the characterization of organic matter in sedimentary cores. We have VNIR and SWIR images with different resolutions. First of all, the images have to be re-aligned, and as the wavelengths of these images do not overlap, the fusion problem remains complex. Four methods have been developed, the first of which combines hyper-spectral and conventional methods to create quantitative predictive models. The second enables the spatial registration of different hyper-spectral images at the lowest resolution. The third deals with the fusion of the latter at the highest resolution. Finally, the last section focuses on sediment deposits (laminae, floods, etc.) to add a temporal dimension to our studies.

January 2013 to August 2014: Leader of the Fusion d'Information pour l'Aide à la Décision (FIAD) group.

Sept. 2010 to Sept. 2012: EFIX theme leader:InformationExtractionand Fusionfrom ComplexSystems

  • Main contribution to the "Fusion Method" axis, with particular emphasis on image processing applications. My work focuses on the development of numerical and symbolic criteria for the comparison and evaluation of image processing.
  • Contribution also on Performance evaluation of information fusion systems. System performance is based on the definition of a "mission-quality" criterion associated with each block (Extraction, Representation, Fusion, Decision) of the system.

Publications

referenced in HAL

Teaching at IUT Annecy, in BUT Networks and Telecoms

  • Responsible for 1st year Computer Science courses (Resource 107: Programming fundamentals) the language used is Python
  • Head of SAé Data processing 1st year (Create computer tools and applications for R&T) the language used is Python
  • Responsible for 1st year Computer Science courses (Resource 208: Structured data analysis and processing) in Python
  • Responsible for 1st year Telecommunications courses (Resource 205: Signals and Systems for Transmissions)
  • Responsible for 2nd year Telecommunications courses (Resource 305: Digital Transmission Chain)
  • Course leader, 2nd year Probability and Statistics TD (Resources 405)
  • Participation in TD/TP on other resources taught by colleagues in the department.
  • Responsible for DATA931: Machine Learning: 5th year of engineering school at Polytech Annecy.

Responsibilities within the R&T department

  • Head of R&T since July 2022 .
  • Head of Continuing Studies from July 2020 to July 2022.
  • Head of R&T department from July 2014 to July 2020.

Research activities.

Animations / research groups.

December 15, 2022: organization with Su Ruan and Mauro Dalla Mura of the meeting: Multimodal machine learning and information fusion: 3rd edition (GDR ISIS - Thème B)

January 19, 2022: organization with Su Ruan and Mauro Dalla Mura of the meeting: Multimodal machine learning and information fusion: 2nd edition (GDR ISIS - Thème B)

In October 2013, with Thierry Denoeux, I organized a meeting on Information Fusion within theme A of the GRD ISIS: Apport de la théorie de l'incertain en fusion d'informations(GDR ISIS - Thème A).

from July 2007 to November 2012: Member of the steering committee for action 3: SCATI (Systèmes Complexes pour l'Analyse et le Traitement d'Images) with Rémy Mullot and Régis Clouard, of theme B (Image et Vision) of the GDR ISIS.

Reviewed by: Fuzzy sets and Systems, IEEE Transactions on Fuzzy Systems, IEEE Transactions on Pattern Analysis and Machine Intelligence, IEEE Transactions on Image Processing, IEEE Transactions on Instrumentation & Measurement, Pattern Recognition Letters, International Journal of Multimedia Information Retrieval, Computational Intelligence and Neuroscience, Computers in Biology and Medicine, Computers and Electronics in Agriculture, Biosystems Engineering, ...

Conference reviewer for ACIVS (2004, 2005), SPIE ISOT (2005, 2006, 2007, 2008), IEA/AIE (2006), IEEE ISOT (2009, 2010), HSI (2015), CIVEMSA (2017), CTIC (2017, 2019), FUZZ-IEEE (2019)

 

Research projects

2018-2022: Participation in theINTERREG France-Switzerland CIME program led by Frédéric POURRAZ.

2016-2020: LISTIC manager of theANR ReVeRIES (Reconnaissance de Végétaux Récréative, Interactive et Educative sur Smartphone) project led by LIUM (Université du Mans). The aim of this project is twofold: on the one hand, the recognition of plants by smartphone-type applications, based on digital image analysis and data fusion; on the other, the development of a fun and educational application for academics and the creation of "citizen science" inventories. http://reveries-project.fr

To download the JAVA applet (RF-EkNN): Evidential two-step tree species recognition approach from leaves and barks, click here: https: //projects.listic.univ-smb.fr/reveries/RF_EkNN.zip

2010-2014: LISTIC manager of theANR ReVeS (Plant Recognition for Smartphone Interfaces) project led by LIRIS (Lyon). We are interested in the fusion of heterogeneous information (data extracted from tree leaves, GPS data, phytogeographical data) that will help decision-making (giving the application user the 5 most likely trees based on a photo of one of its leaves). http://liris. cnrs.fr/reves/

 

Thesis in progress:

...

Defended theses:

PAGNIER Fanny: "Méthodes d'aide à la décision pour caractériser la vigilance requise en terrain avalancheux", co-supervisors: Frédéric Pourraz, Hervé Verjus, Gilles Mauris, defended June 19, 2023.

JACQ Kévin: "Multispectral image processing and data spatialization for the characterization of organic matter in natural solid phases", co-supervisor: Bernard Fanget (EDYTEM). defended November 27, 2019.

BEN AMEUR Rihab: "Multimodal fusion for tree species recognition", co-supervisor: Lionel Valet, defended June 4, 2018.

NGUYEN Thanh Long: "Multi-sensor information fusion for NAO robot control", co-supervisor: Reda Boukezzoula, defended April 5, 2017.

CERUTTI Guillaume: "Segmentation and interpretation of natural images for tree leaf identification on smartphone", co-supervisors: Laure Tougne and Antoine Vacavant, defended November 21, 2013.

LAMALLEM Abdellah: "Performance evaluation of an information fusion system: application to 3D image processing". co-supervisor: Lionel Valet, defended July 17, 2012.

IONESCU Bogdan: "Symbolic characterization of image sequences: application to animated films", thesis supervisor Patrick Lambert, defended May 7, 2007.

CHEHADEH Yousra: "Local distance operators in rectangular and parallelepiped meshes: application to image analysis", thesis supervisor Philippe Bolon, defended October 1, 1997.

Program Committee.

Member of the Program Committee of the SPIE ISOT (International Symposium on Optomechatronic Technologies) annual conference Session: Computer Vision Systems, from 2005 to 2008 and co-chair of this conference. In 2009, this conference became an IEEE conference. In 2010, this conference will be held in Toronto (Canada).

Organization of the special session: Information Fusion Systems (SPS 30) of the IPMU 2010 congress, Dortmund, Germany, then IPMU 2012 in Catania (Italy), IPMU 2016 in Eindhoven, IPMU 2018 in Cadiz, and IPMU 2020 in Lisbon (Portugal): " Belief function theory and Its Applications".

University authorities.

Elected member of CODUS (2012-2016).

LISTIC representative atDoctoral School-SISEO (2012-2016).

Elected member of the Commission de Spécialistes 61ème/63ème sections then 27ème/61ème sections since 1995.

Elected member of the Annecy IUT Board of Directors from 2002 to 2005.

Member of the Annecy IUT Board of Directors from July 2014 to July 2020

Elected member of the Annecy IUT Board of Directors since July 2021.

Appointed member of the Commission de Spécialistes 61ème section de l'INPG from 1998 to 2005.

Groupe Télécom national coordinator for the 28 R&T departments in France and mainland France from 2003 to 2009.

Career path.

  • Habilitation à Diriger des Recherches - December 2007 - Université de Savoie.
  • PhD in Signal Processing and Telecommunications - 1991 - Université de RENNES 1
  • DEA in Signal Processing and Telecommunications - 1987 - University of RENNES 1
  • Master's degree in EEA - 1986 - University of RENNES 1
  • EEA degree - 1985 - University of RENNES 1
  • DEUG A: Mathematics and Physics - 1984 - University of RENNES 1.

Professional experience.

  • University Professor, Annecy IUT R&T department, since 01-09-2012.
  • Senior lecturer, Annecy IUT R&T department, from 01-09-1998 to 31-08-2012
  • Lecturer, IUT d'Annecy GEII department, from 01-10-1992 to 31-08-1998
  • Research Engineer, Société FAROS, from 01-07-1992 to 30-09-1992
  • ATER - ENSSAT Lannion, University of RENNES 1 from 01-10-1990 to 30-06-1992
  • ALER - ENSSAT Lannion, University of RENNES 1 from 01-10-1988 to 30-09-1990
  • Associate Assistant - ENSSAT Lannion, University of RENNES 1 from 01-09-1987 to 30-09-1988