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arXiv · 1505.02740

Noise Robustness of a Combined Phase Retrieval and Reconstruction Method for Phase-Contrast Tomography

Rasmus Dalgas Kongskov·Jakob Sauer Jørgensen·Henning Friis Poulsen·Per Christian Hansen
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Abstract

Classical reconstruction methods for phase-contrast tomography consist of two stages: phase retrieval and tomographic reconstruction. A novel algebraic method combining the two was suggested by Kostenko et al. (Opt. Express, 21, 12185, 2013) and preliminary results demonstrating improved reconstruction compared to a two-stage method given. Using simulated free-space propagation experiments with a single sample-detector distance, we thoroughly compare the novel method with the two-stage method to address limitations of the preliminary results. We demonstrate that the novel method is substantially more robust towards noise; our simulations point to a possible reduction in counting times by an order of magnitude.

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Rasmus Dalgas Kongskov, Jakob Sauer Jørgensen, Henning Friis Poulsen, Per Christian Hansen. 2015-09-07. Noise Robustness of a Combined Phase Retrieval and Reconstruction Method for Phase-Contrast Tomography. https://arxiv.org/abs/1505.02740

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