Photoacoustic image reconstruction from full field data in heterogeneous media
Abstract
We consider image reconstruction in full-field photoacoustic tomography, where 2D projections of the full 3D acoustic pressure distribution at a given time T>0 are collected. We discuss existing results on the stability and uniqueness of the resulting image reconstruction problem and review existing reconstruction algorithms. Open challenges are also mentioned. Additionally, we introduce novel one-step reconstruction methods allowing for a variable speed of sound. We apply preconditioned iterative and variational regularization methods to the one-step formulation. Numerical results using the one-step formulation are presented, together with a comparison with the previous two-step approach for full-field photoacoustic tomography
Keywords
Cite
@article{arxiv.1901.06503,
title = {Photoacoustic image reconstruction from full field data in heterogeneous media},
author = {Markus Haltmeier and Gerhard Zangerl and Robert Nuster and Linh V. Nguyen},
journal= {arXiv preprint arXiv:1901.06503},
year = {2024}
}
Comments
This paper is a proceeding to our presentation (paper 10878-119) at the Photons Plus Ultrasound: Imaging and Sensing conference (within the SPIE Photonics West), Poster Sunday, February 03, 2019