Combined speckle- and propagation-based single shot two-dimensional phase retrieval method

Single-shot two-dimensional (2D) phase retrieval (PR) can recover the phase shift distribution within an object from a single 2D x-ray phase contrast image (XPCI). Two competing XPCI imaging modalities often used for single-shot 2D PR to recover material properties critical for predictive performance capabilities are: speckle-based (SP-XPCI) and propagation-based (PB-XPCI) XPCI imaging. However, PR from SP-XPCI and PB-XPCI images are, respectively, limited to reconstructing accurately slowly and rapidly varying features due to noise and differences in their contrast mechanisms. Herein, we consider a combined speckle- and propagation-based XPCI (SPB-XPCI) image by introducing a mask to generate a reference pattern and imaging in the near-to-holographic regime to induce intensity modulations in the image. We develop a single-shot 2D PR method for SPB-XPCI images of pure phase objects without imposing restrictions such as object support constraints. It is compared against PR methods inspired by those developed for SP-XPCI and PB-XPCI on simulated and experimental images of a thin glass shell before and during shockwave compression. Reconstructed phase maps show improvements in quantitative scores of root-mean-square error and structural similarity index measure using our proposed method.

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Publication Details

Journal
Optics Express
Published
2024-11-11
DOI
https://doi.org/10.1364/oe.531269
Citations
3
Primary Topic
Advanced X-ray Imaging Techniques
Type
article
Field-Weighted Citation Impact
1.82

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Combined speckle- and propagation-based single shot two-dimensional phase retrieval method

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article

Combined speckle- and propagation-based single shot two-dimensional phase retrieval method

C. A. Bolme, Daniel Hodge, Richard L. Sandberg, A. E. Gleason, Silvia Pandolfi, Andrew F. T. Leong, Eric Galtier, Thomas E. Carver, Bob Nagler, Kyle Ramos, Dimitri Khaghani, Hae Ja Lee, Anne Sakdinawat, Pawel Kozłowski, Stefano Marchesini, Eric Cunningham, D. S. Montgomery, Hussein Aluie, Kelin Kurzer-Ogul, Yanwei Liu, Jessica K. Shang, Kenan Li, John L. Barber
article en
3 citations

Abstract

Single-shot two-dimensional (2D) phase retrieval (PR) can recover the phase shift distribution within an object from a single 2D x-ray phase contrast image (XPCI). Two competing XPCI imaging modalities often used for single-shot 2D PR to recover material properties critical for predictive performance capabilities are: speckle-based (SP-XPCI) and propagation-based (PB-XPCI) XPCI imaging. However, PR from SP-XPCI and PB-XPCI images are, respectively, limited to reconstructing accurately slowly and rapidly varying features due to noise and differences in their contrast mechanisms. Herein, we consider a combined speckle- and propagation-based XPCI (SPB-XPCI) image by introducing a mask to generate a reference pattern and imaging in the near-to-holographic regime to induce intensity modulations in the image. We develop a single-shot 2D PR method for SPB-XPCI images of pure phase objects without imposing restrictions such as object support constraints. It is compared against PR methods inspired by those developed for SP-XPCI and PB-XPCI on simulated and experimental images of a thin glass shell before and during shockwave compression. Reconstructed phase maps show improvements in quantitative scores of root-mean-square error and structural similarity index measure using our proposed method.

Optics ExpressVol. 32(26)
Brigham Young University (US), SLAC National Accelerator Laboratory (US), Sorbonne Université (FR), University of Rochester (US), Stanford University (US)
National Science Foundation, U.S. Department of Energy, National Nuclear Security Administration, Fusion Energy Sciences, Laboratory Directed Research and Development, Los Alamos National Laboratory
Openalex Percentile: Top 15%
Advanced X-ray Imaging Techniques
1.82
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