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Proceedings Paper

Absorption-phase duality in structured illumination transport of intensity (TIE) phase imaging
Author(s): Yunhui Zhu
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Paper Abstract

Robust phase retrieval is obtained by using structured illumination with the Transport of Intensity Equation (SI-TIE). By imposing a proportional relationship between the attenuation coefficient and the refractive index (known as the phase-absorption duality), we are allowed to reformulate the SI-TIE propagation equation to probably address both the transmission and diffraction signals using only a single shot of intensity measurement. The correlation between the phase and attenuation fixes the low frequency instability, resulting in robust phase imaging with enhanced sensitivity.

Paper Details

Date Published: 12 May 2016
PDF: 7 pages
Proc. SPIE 9847, Anomaly Detection and Imaging with X-Rays (ADIX), 984709 (12 May 2016); doi: 10.1117/12.2229094
Show Author Affiliations
Yunhui Zhu, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 9847:
Anomaly Detection and Imaging with X-Rays (ADIX)
Amit Ashok; Mark A. Neifeld; Michael E. Gehm, Editor(s)

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