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Article

Optoacoustic Tomography Using Accelerated Sparse Recovery and Coherence Factor Weighting

1
Institute for Biological and Medical Imaging, Helmholtz Zentrum München, Oberschleißheim, Germany
2
Chair for Biological Imaging, Technische Universität München, München, Germany
*
Author to whom correspondence should be addressed.
Tomography 2016, 2(2), 138-145; https://doi.org/10.18383/j.tom.2016.00148
Received: 6 May 2016 / Revised: 8 May 2016 / Accepted: 8 May 2016 / Published: 1 June 2016
Sparse recovery algorithms have shown great potential to accurately reconstruct images using limited-view optoacoustic (photoacoustic) tomography data sets, but these are computationally expensive. In this paper, we propose an improvement of the fast converging Split Augmented Lagrangian Shrinkage Algorithm method based on least square QR inversion for improving the reconstruction speed. We further show image fidelity improvement when using a coherence factor to weight the reconstruction result. Phantom and in vivo measurements show that the accelerated Split Augmented Lagrangian Shrinkage Algorithm method with coherence factor weighting offers images with reduced artifacts and provides faster convergence compared with existing sparse recovery algorithms.
Keywords: optoacoustic tomography; photoacoustic tomography; model-based reconstruction; sparse recovery method optoacoustic tomography; photoacoustic tomography; model-based reconstruction; sparse recovery method
MDPI and ACS Style

He, H.; Prakash, J.; Buehler, A.; Ntziachristos, V. Optoacoustic Tomography Using Accelerated Sparse Recovery and Coherence Factor Weighting. Tomography 2016, 2, 138-145. https://doi.org/10.18383/j.tom.2016.00148

AMA Style

He H, Prakash J, Buehler A, Ntziachristos V. Optoacoustic Tomography Using Accelerated Sparse Recovery and Coherence Factor Weighting. Tomography. 2016; 2(2):138-145. https://doi.org/10.18383/j.tom.2016.00148

Chicago/Turabian Style

He, Hailong, Jaya Prakash, Andreas Buehler, and Vasilis Ntziachristos. 2016. "Optoacoustic Tomography Using Accelerated Sparse Recovery and Coherence Factor Weighting" Tomography 2, no. 2: 138-145. https://doi.org/10.18383/j.tom.2016.00148

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