Mathematics – Numerical Analysis
Scientific paper
2008-09-11
Commun. Math. Sci. 7(3), pp. 665-678 (2009)
Mathematics
Numerical Analysis
16 pages (6 figures). we now also present reconstructions with equation (3.5). we modified remark 3.2
Scientific paper
A method for photoacoustic tomography is presented that uses circular integrals of the acoustic wave for the reconstruction of a three-dimensional image. Image reconstruction is a two-step process: In the first step data from a stack of circular integrating are used to reconstruct the circular projection of the source distribution. In the second step the inverse circular Radon transform is applied. In this article we establish inversion formulas for the first step, which involves an inverse problem for the axially symmetric wave equation. Numerical results are presented that show the validity and robustness of the resulting algorithm.
Haltmeier Markus
Scherzer Otmar
Zangerl G.
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