Algorithmic Development
and Analysis of Pioneer
Techniques for
Imaging with waVES
The research project ADAPTIVES has been approved for funding by the European Research Council, through a Starting Independent Research Grand awarded to Chrysoula Tsogka Professor at the Dept. of Applied Mathematics, University of Crete and researcher at IACM/FORTH. Duration: 5 years.
Waves are been used for the detection and imaging of objects for many
years. We all know the radar, which uses electromagnetic waves, the sonar that
is based on acoustic waves, and medical ultrasound. In most of these
applications the materials encountered in practice are often complex and their
properties are not known - and cannot be estimated - in every detail. We,
therefore, model the propagation medium as a random process for which we know
some statistical properties. Our goal is to solve the imaging problem in a
regime where multipathing due to the heterogeneities
is important. The challenge is to
produce reliable, i.e., statistically stable, results, especially when there is
no a priori knowledge about the propagation medium. Recently we have developed
a coherent interferometric imaging methodology (CINT) that produces statistically
stable results in noisy environments. CINT is designed for imaging with partially
coherent array data recorded in richly scattering media.
It uses statistical smoothing techniques to obtain results that are independent
of the random medium realization.
In the project ADAPTIVES
we aim
to extend this methodology
along two complementary directions: novel types of applications (such as underwater acoustics and
seismic imaging), and further mathematical and numerical
development so as to assess and extend its range of applicability.
PhD and
postdoc positions available: The research to be carried out in the project ADAPTIVES
needs young researchers to get involved. Requirements are background in and/or an
interest in scientific computing, numerical solution of differential
equations (in particular wave propagation) and inverse
problems. The candidates will be
funded by the European Research Council. Applications should comprise a
letter of motivation, a CV plus the names and contact information of two
individuals who have agreed to send letters of recommendation.
Location: The positions are located at the institute of applied and computational mathematics (IACM) at FORTH, Heraklion, Crete, Greece (http://www.iacm.forth.gr/).
Contact: C. Tsogka, tsogka@tem.uoc.gr,
http://www.tem.uoc.gr/~tsogka