Photoacoustic imaging

Doctoral student: 
VAUTHRIN Margaux
Date de soutenance: 
Monday, July 3, 2017
Supervisors: 
Name: 
T. Faouzi
Laboratory: 
LJK
Name: 
L. Desbat
Laboratory: 
TIMC
Name: 
J. Boutet
Laboratory: 
CEA-Leti
Summary: 

The aim of this thesis is to study the photoacoustic inverse problem. First, we solve numerically the photoacoustic direct problem, i.e. the optical diffusion equation and the wave propagation equation. In a second part, we introduce a correction of the acoustic speed that will improve the reconstruction of the initial pressure and of the optical properties. We solve this problem numerically for a piecewise constant medium with different methods (time reversal, minimization).