Multigrid-based reconstruction algorithm for quantitative photoacoustic tomography

This paper proposes a multigrid inversion framework for quantitative photoacoustic tomography reconstruction. The forward model of optical fluence distribution and the inverse problem are solved at multiple resolutions. A fixed-point iteration scheme is formulated for each resolution and used as a c...

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Bibliographic Details
Published in:Biomedical optics express 2015-07, Vol.6 (7), p.2424-2434
Main Authors: Li, Shengfu, Montcel, Bruno, Yuan, Zhen, Liu, Wanyu, Vray, Didier
Format: Article
Language:English
Subjects:
Acoustics
Engineering Sciences
Signal and Image processing
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Summary:This paper proposes a multigrid inversion framework for quantitative photoacoustic tomography reconstruction. The forward model of optical fluence distribution and the inverse problem are solved at multiple resolutions. A fixed-point iteration scheme is formulated for each resolution and used as a cost function. The simulated and experimental results for quantitative photoacoustic tomography reconstruction show that the proposed multigrid inversion can dramatically reduce the required number of iterations for the optimization process without loss of reliability in the results.
ISSN:2156-7085
2156-7085
DOI:10.1364/BOE.6.002424