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Proceedings Paper

Photoacoustic image reconstruction from full field data in heterogeneous media
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Paper 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 onestep 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.

Paper Details

Date Published: 27 February 2019
PDF: 10 pages
Proc. SPIE 10878, Photons Plus Ultrasound: Imaging and Sensing 2019, 108783D (27 February 2019); doi: 10.1117/12.2508541
Show Author Affiliations
Markus Haltmeier, Univ. Innsbruck (Austria)
Gerhard Zangerl, Univ. Innsbruck (Austria)
Linh V. Nguyen, Univ. of Idaho (United States)
Robert Nuster, Karl-Franzens-Univ. Graz (Austria)

Published in SPIE Proceedings Vol. 10878:
Photons Plus Ultrasound: Imaging and Sensing 2019
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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