Skip to main content

Sparse Representation of Multivalued Images: Application in Astrophysics

Objective

Modern imaging instruments generally provide multi-value datasets, which means that for a given image pixel, we do not only have one measurement (such as the intensity) but a set of ancillary data. This could be information on color, but in general this extra data set can also be much more complex. The proposed interdisciplinary project intends to develop the next generation of sparse representation methods for complex multi-valued astronomical data in order to probe the fine structure and extract information in high dimensional astronomical data sets. Objectives: Our project will have three main scientific directions: i) Find new decompositions for sparse representation of complex multi-valued data, ii) develop new scheme for data restoration, component separation, data compression using the new sparse representations and iii) apply the new developed techniques on astronomical data. Originality: New sparse representations for such data set is essential for fundamental progress in a wide range of problem areas where traditional multiscale methods have now run their course. Expected results: Our effort will result in three main deliverables. Theory: Coherent, comprehensive knowledge, showing what can and cannot be accomplished with sparse representation. Tools: A wide range of practical algorithms and a unified, publicly available software environment -- SparseAstro-Lab -- deploying them. Applications: Our main initial focus will be on the analysis of data in astronomy, such as those coming soon from the satellites PLANCK, HERSCHELL or GLAST.

Call for proposal

ERC-2008-AdG
See other projects for this call

Funding Scheme

ERC-AG - ERC Advanced Grant

Host institution

COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Address
Rue Leblanc 25
75015 Paris 15
France
Activity type
Research Organisations
EU contribution
€ 2 268 600
Principal investigator
Jean-Luc Starck (Dr.)
Administrative Contact
Nathalie Judas (Ms.)

Beneficiaries (1)

COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
France
EU contribution
€ 2 268 600
Address
Rue Leblanc 25
75015 Paris 15
Activity type
Research Organisations
Principal investigator
Jean-Luc Starck (Dr.)
Administrative Contact
Nathalie Judas (Ms.)