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researResearch - Télécom Bretagne

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esearc<br />

<strong>researResearch</strong><br />

SISE<br />

Information systems for surveillance<br />

of the environment<br />

Project Leader :<br />

Grégoire Mercier<br />

Departments:<br />

• Image and Information<br />

Processing,<br />

• Signal and Communications,<br />

• CITI (Télécom &<br />

Management SudParis)<br />

Aims and objectives throughout the project<br />

The aim of this project is to develop theoretical signal processing tools to<br />

answer the need for operational surveillance of the environment. It implies<br />

supplying detection maps of "concerned targets" from satellite and/or aircraft<br />

remote sensing data : detection maps of oil spills, detection maps of change<br />

following natural disasters, maps of changes of land use and planning. In this<br />

context identified difficulties concern the processing of heterogeneous data<br />

from various sensors (multispectral or hyperspectral optic imaging, thermal,<br />

radar imaging) or from identical sensors of different modalities (geometric<br />

acquisition, wavelength, polarisation, resolution…)<br />

Project team:<br />

René Garello,<br />

Grégoire Mercier,<br />

Dominique Pastor,<br />

Wojciech Pieczynski<br />

(Télécom & Management<br />

SudParis/CITI),<br />

Jordi Inglada (CNES),<br />

Bassam Abdel Latif,<br />

Marc Lennon (SAS Actimar),<br />

Abdourrahmane<br />

Mahamane Atto,<br />

Amandine Robin.<br />

In 2008, as planned, the developments followed mainly two axes:<br />

1- an axis dedicated to abrupt changes, which represents the main contractual<br />

activity notably in collaboration to the CNES. But it also benefited from the<br />

CARNOT project (superTemp) thanks to which a post-doctorate student<br />

carried out, in 2008, theoretical research into the indicators of change, mainly<br />

by using a non-parametric model of signal in a sparse representation.<br />

2- An axis, dedicated to the joint processing of heterogeneous data, where<br />

parametric and non-parametric materials were proposed. The first is only<br />

applicable to the detection of change between two observations and then are<br />

involved in Major Disaster context. The latter can be applied to time series of<br />

observations dedicated to the detection of progressive changes.<br />

Emerging activities appeared in 2008 within the SISE project. Notably the<br />

characterisation of high resolution multi-component signals (for instance<br />

polarimetric radar or hyperspectral signal characterisation). On this topic the<br />

actual bibliography concerns only panchromatic signal processing.<br />

186

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