Image Processing for Space & Earth Observations
Multisource & Multispectral Image Processing via Bayesian Inference
MIV team ICUBE

CNRSUnistra

Christophe Collet
Professor
Employer: Unistra (since Sep 2001)

c.collet@unistra.fr

Phone: +33 368 854 332
Fax:

Office C402
MIV ICUBE - Telecom Physique
Pôle API, Bd Sébastien Brant CS 10413
67412 Illkirch Cedex - France

  • Who Am I?
  • Research Interests
  • Related Research Projects
  • Related Software Projects
  • Publications
  • Links
  • Who Am I?

    Educational Background

    Academic Positions

    Research Interests

    Keywords:

    Applications I am interested in

    • SONAR imaging, Tri-band SPOT images, Infrared image sequences
    • Multispectral and hyperspectral imaging in astronomy, Polarimetric imaging (remote sensing)
    • Multimodal imaging (medical imaging, biology)

    Favorite Approaches & Methods

    • Statistical approaches to image analysis, statistical estimation
    • Hierarchical Markovian segmentation using multiresolution models (Markov trees, wavelets)
    • Optimization techniques (multigrid, genetic...), Bayesian inference on graphs

    PhD theses I have advised

    Related Research Projects

    FILTER: Display only the projects of which C. Collet is the P.I.

    Astronomy & Astrophysics

    SpatioSpectralSEGOct 2014-
    Spatio-spectral segmentation for astro-cubes
    Keywords: Hyperspectral data segmentation, MUSE instrument, Bayesian inference, Markov Fields, Circum-Galactic Medium,Inter-Galactic Medium

    Group participants: C. Collet [P.I.], J. Courbot, V. Mazet, E. Monfrini
    DSIMOct 2014-Sep 2018
    Spectroscopic Decomposition in Multispectral Images
    Keywords: Inverse problems, Bayesian inference, MCMC algorithms, Sparse approximation, Joint decomposition of spectra, multispectral images

    Group participants: V. Mazet [P.I.], C. Collet, S. Faisan, M. Louys, F. Salzenstein
    CubeExtractJan 2013-Jul 2013
    Cube Extraction
    Keywords: cube preview, hyperspectral, adaptive binning

    Group participants: M. Louys [P.I.], C. Collet
    SpectroDecJan 2011-Dec 2012
    Sparse approximation for spectroscopic signals decomposition
    Keywords: spectroscopic signals decomposition, photoelectron spectroscopy, radioastronomy, inverse problems, sparse approximation, Monte Carlo Markov chain methods (MCMC).

    Group participants: V. Mazet [P.I.], C. Collet, S. Faisan, H. Mortada
    CubeCombinaisonFusionJan 2009-Jan 2013
    Hyperspectral data fusion
    Keywords: optimal data fusion, spatial and spectral super-resolution, model-based, recursive update, Bayesian inference

    Group participants: C. Collet [P.I.], F. Salzenstein, V. Mazet
    CubeDeconvolutionJan 2009-Jan 2013
    Deconvolution of hyperspectral observations with varying PSF
    Keywords: deconvolution, varying PSF, astronomical data cube

    Group participants: V. Mazet, C. Collet
    CubeSourceSeparationJan 2009-Jan 2013
    Source separation in hyperspectral deep field observations
    Keywords: source separation, decomposition into elementary signals, astronomical data cube

    Group participants: C. Collet, V. Mazet, F. Salzenstein, M. Louys
    CubeVisualizationJan 2009-Jan 2013
    Development of a visualization tool enabling large IFU data cubes upload, navigation and interpretation
    Keywords: Visualization, massive data sets, hyperspectral data, IFU

    Group participants: M. Louys [P.I.], V. Mazet, C. Collet
    GalaxyClassificationOct 2007-Oct 2010
    Galaxy classification using both spatial (morphological) and spectral aspects
    Keywords: galaxy classification, multivariate cube, decomposition into structures, Bayesian inference, mathematical morphology

    Group participants: C. Collet [P.I.], V. Mazet
    AstroCubeSegmentationSep 2006-Dec 2009
    Hyperspectral data cube segmentation of astronomical images
    Keywords: Data cube, spectral line estimation, mixture of Gaussians, decomposition into elementary patterns, MCMC

    Group participants: V. Mazet [P.I.], C. Collet
    DeepSkyFusionDec 2005-Dec 2008
    Multisource data fusion and 2D super-resolution
    Keywords: data fusion, spatial and spectral super-resolution, model-based, recursive update, Bayesian inference

    Group participants: C. Collet, F. Salzenstein, M. Louys
    LSBGalaxyDetectFeb 2005-Dec 2008
    LSB galaxy detection using a Markov quadtree
    Keywords: detection, Markov quadtree, low surface brightness galaxies

    Group participants: C. Collet [P.I.], M. Louys
    CopulaHMTSegmentOct 2004-Dec 2005
    Copulas theory and pairwise quadtree
    Keywords: Copula theory, Markov pairwise quadtree

    Group participant: C. Collet
    MultiColorVizOct 2003-Jun 2006
    Color visualization of hyperspectral images
    Keywords: Multispectral, color display, HSV space, Fisher analysis, PCA, Markovian segmentation

    Group participants: C. Collet, M. Louys
    HyperGalaxyClassOct 2003-Nov 2006
    Hyperspectral data cube analysis for galaxy classification
    Keywords: hyperspectral, galaxy classification, meanshift, projection, segmentation, reduction

    Group participants: C. Collet [P.I.], M. Louys
    QTreeRestoFusionOct 2002-Jun 2005
    Fusion/denoising in wavelet space using a Markov quadtree
    Keywords: Multispectral image fusion, denoising, Markov, quadtree, wavelets

    Group participant: C. Collet
    FuzzyMarkovSegmentJan 2002-Dec 2010
    Non-Stationary Fuzzy Markov Chain/Field Segmentation
    Keywords: Markov field, Markov chain, fuzzy models, fuzzy triplet Markov chain, non-stationary Markov chain

    Group participants: F. Salzenstein [P.I.], C. Collet
    MissingMultiSegmentAOct 2001-Jun 2003
    Noise modeling, outliers and missing data management for segmentation tasks with multiwavelength images
    Keywords: outliers, missing data, quadtree, unsupervised segmentation

    Group participants: C. Collet [P.I.], M. Louys
    QTreeMultiSegmentOct 1999-Jun 2004
    Multiresolution Markov Modeling for Multichannel Segmentation
    Keywords: Unsupervised segmentation, Markovian quadtree, Generalized Gaussian model, multispectral data

    Group participants: C. Collet [P.I.], M. Louys

    Planetary Imaging (Small Bodies & Planets)

    3DSpaceFusionDec 2005-Nov 2008
    Multisource data fusion, 3D surface recovery and super-resolution
    Keywords: 3D surface recovery, reflectance estimation, data fusion, super-resolution, model-based, recursive update, Bayesian inference

    Group participant: C. Collet

    Remote Sensing (Earth Observation)

    LowSNRSpatSpecDetectJun 2014-Jun 2015
    Spatio-spectral Gaussian random field modeling approach for target detection on hyperspectral data in very low SNR
    Keywords: remote sensing, gaussian fields, detection changes, temporal series, hyperspectral, multiband

    Group participants: C. Collet [P.I.], F. Salzenstein
    DetectChangeUrbanMapsSep 2012-
    Detection Changes in hyperspectral remote sensing urban maps
    Keywords: change detection , hyperspectral observations, remote sensing

    Group participants: C. Collet [P.I.], V. Mazet
    ReflectanceFusionDec 2005-Nov 2008
    Multisource, multispectral data fusion and super-resolution
    Keywords: Data fusion, super-resolution, pan-sharpening, model-based, Bayesian inference

    Group participant: C. Collet
    ImPolarJan 2003-Jul 2004
    Segmentation of Multicomponent Mueller Images
    Keywords: Multidimensional polarization encoded images, Mueller matrix, Bayesian segmentation

    Group participant: C. Collet
    CorrNoiseWaterSegmentOct 1999-Jun 2003
    Multiscale Markov Modeling for Segmentation and Nautical Chart Update
    Keywords: Unsupervised segmentation, Markovian quadtree, Generalized Gaussian model, SPOT, multispectral data, bathymetry

    Group participant: C. Collet [P.I.]
    MissingMultiSegmentEOct 1998-Jun 2003
    Noise modeling, outliers and missing data management for segmentation tasks with multiwavelength images
    Keywords: outliers, missing data, quadtree, unsupervised segmentation

    Group participant: C. Collet [P.I.]

    Other applications

    PursuitProjFaintDetectMar 2015-Jul 2015
    Faint spread object detection in hyperspectral images with constant false alarm rate using Pursuit Projection methods
    Keywords: hyperstectral,detection, pursuit projection

    Group participant: C. Collet [P.I.]

    Related Software Projects

    HyperFusionJan 2009 - Jan 2013maintained
    Hyperspectral Fusion
    Keywords: hyperspectral, fusion, Bayesian framework, uncertainties, datacubes, HDF5

    Group participant: C. Collet [P.I.]
    AÏDAMay 2003 - Dec 2008unmaintained
    Astronomical Image processing Distribution Architecture
    Keywords: multiwavelength analysis, reduction, denoising, segmentation, fusion, classification, visualization

    Group participants: C. Collet [P.I.], M. Louys
    MARSIAAMay 2001 - May 2004unmaintained
    MARkovian Statistical Image Analysis for Astronomy
    Keywords: Markov chain, Markov tree, multiband segmentation

    Group participants: C. Collet [P.I.], M. Louys

    Links


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