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Proceedings Paper

Computational resolution enhancement for mesh-based x-ray phase imaging
Author(s): Congxiao He; Danielle Hayden; Carolyn A. MacDonald; Jonathan C. Petruccelli
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Paper Abstract

X ray phase imaging can offer significantly improved image contrast between materials of similar atomic number compared to traditional imaging, although it typically requires small, low power sources to generate the required spatial coherence. We have demonstrated the use of a simple wire mesh and Fourier transform techniques to overcome this limitation, essentially by observing shifts in the mesh. However, the resolution of that technique is limited by the mesh period. Here we demonstrate greatly improved spatial resolution by the application of wider windowing and appropriate combinations of Fourier components from multiple images acquired while spatially shifting the grid.

Paper Details

Date Published: 14 May 2018
PDF: 9 pages
Proc. SPIE 10669, Computational Imaging III, 106690Q (14 May 2018); doi: 10.1117/12.2305097
Show Author Affiliations
Congxiao He, Univ. at Albany (United States)
Danielle Hayden, Univ. at Albany (United States)
Carolyn A. MacDonald, Univ. at Albany (United States)
Jonathan C. Petruccelli, Univ. at Albany (United States)

Published in SPIE Proceedings Vol. 10669:
Computational Imaging III
Abhijit Mahalanobis; Amit Ashok; Lei Tian; Jonathan C. Petruccelli, Editor(s)

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