Abstract : We consider the reconstruction of internal elastic displacements from ultrasound measurements , which finds applications in the medical imaging modality called elastography. By appropriate interferometry and windowed Fourier transforms of the ultrasound measurements, we propose a reconstruction procedure of the vectorial structure of spatially varying elastic displacements in biological tissues. This provides a modeling and generalization of scalar reconstruction procedures routinely used in elastography. The proposed algorithm is justified using a single scattering approximation and local asymptotic analysis. Its validity is assessed by numerical simulations.
Type de document :
Article dans une revue
SIAM Journal on Imaging Sciences, Society for Industrial and Applied Mathematics, 2015, 8 (2), pp.1070-1089. 〈10.1137/140988504〉
https://hal.inria.fr/hal-01188761
Contributeur : Sébastien Imperiale
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Soumis le : lundi 31 août 2015 - 14:47:56
Dernière modification le : lundi 3 décembre 2018 - 15:46:13
Document(s) archivé(s) le : mardi 1 décembre 2015 - 10:32:44
