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Journal of Biomedical Optics

On the use of frequency-domain reconstruction algorithms for photoacoustic imaging
Author(s): Rainer J. Schulze; Otmar Scherzer; Gerhard Zangerl; Markus Holotta; Dirk Meyer; Florian Handle; Robert Nuster; Günther Paltauf
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Paper Abstract

We investigate the use of a frequency-domain reconstruction algorithm based on the nonuniform fast Fourier transform (NUFFT) for photoacoustic imaging (PAI). Standard algorithms based on the fast Fourier transform (FFT) are computationally efficient, but compromise the image quality by artifacts. In our previous work we have developed an algorithm for PAI based on the NUFFT which is computationally efficient and can reconstruct images with the quality known from temporal backprojection algorithms. In this paper we review imaging qualities, such as resolution, signal-to-noise ratio, and the effects of artifacts in real-world situations. Reconstruction examples show that artifacts are reduced significantly. In particular, image details with a larger distance from the detectors can be resolved more accurately than with standard FFT algorithms.

Paper Details

Date Published: 1 August 2011
PDF: 7 pages
J. Biomed. Opt. 16(8) 086002 doi: 10.1117/1.3605696
Published in: Journal of Biomedical Optics Volume 16, Issue 8
Show Author Affiliations
Rainer J. Schulze, Austrian Academy of Sciences (Austria)
Otmar Scherzer, Austrian Academy of Sciences (Austria)
Gerhard Zangerl, Univ. Wien (Austria)
Markus Holotta, Innsbruck Medical Univ. (Austria)
Dirk Meyer, Leopold-Franzens-Univ. Innsbruck (Austria)
Florian Handle, Innsbruck Medical Univ. (Austria)
Robert Nuster, Karl-Franzens-Univ. Graz (Austria)
Günther Paltauf, Karl-Franzens-Univ. Graz (Austria)

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