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arXiv · 0808.3510

A Reconstruction Algorithm for Photoacoustic Imaging based on the Nonuniform FFT

M. Haltmeier·O. Scherzer·G. Zangerl
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Abstract

Fourier reconstruction algorithms significantly outperform conventional back-projection algorithms in terms of computation time. In photoacoustic imaging, these methods require interpolation in the Fourier space domain, which creates artifacts in reconstructed images. We propose a novel reconstruction algorithm that applies the one-dimensional nonuniform fast Fourier transform to photoacoustic imaging. It is shown theoretically and numerically that our algorithm avoids artifacts while preserving the computational effectiveness of Fourier reconstruction.

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M. Haltmeier, O. Scherzer, G. Zangerl. 2008-08-26. A Reconstruction Algorithm for Photoacoustic Imaging based on the Nonuniform FFT. https://doi.org/10.1109/tmi.2009.2022623

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