Paper
17 September 2014 Computational techniques in propagation-based x-ray phase imaging
Author Affiliations +
Abstract
X–ray phase imaging utilizes a variety of techniques to render phase information as intensity contrast and these intensity images can in some cases be processed to retrieve quantitative phase. A subset of these techniques use free space propagation to generate phase contrast and phase can be recovered by inverting differential equations governing propagation. Two techniques to generate quantitative phase reconstructions from a single phase contrast image are described in detail, along with regularization techniques to reduce the influence of noise. Lastly, a recently developed technique utilizing a binary–amplitude grid to enhance signal strength in propagation–based techniques is described.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan C. Petruccelli, Sajjad Tahir, Sajid Bashir, Adam Pan, Lei Tian, Ling Xu, C. A. MacDonald, and George Barbastathis "Computational techniques in propagation-based x-ray phase imaging", Proc. SPIE 9209, Advances in Computational Methods for X-Ray Optics III, 92090P (17 September 2014); https://doi.org/10.1117/12.2062917
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Cited by 2 scholarly publications.
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KEYWORDS
Phase contrast

Phase imaging

Signal attenuation

Sensors

Spatial frequencies

Phase measurement

Geometrical optics

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