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Proceedings Paper

Transport of intensity phase imaging using Bessel sources
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Paper Abstract

Propagation-based phase contrast using the transport of intensity equation (TIE) allows rapid, deterministic phase retrieval from defocused images. For weakly attenuating objects, phase can be retrieved from a single image. However, the TIE suffers from significant low frequency artifacts due to enhancement of noise during phase retrieval. We demonstrate that by patterning the illumination source as approximately a modified Bessel function of the 2nd kind of zero order, quantitative phase can be imaged directly at the detector within a spatial frequency band. Outside of that band, Bessel sources still improve low frequency performance in phase retrieval.

Paper Details

Date Published: 20 May 2016
PDF: 14 pages
Proc. SPIE 9870, Computational Imaging, 98700C (20 May 2016); doi: 10.1117/12.2222157
Show Author Affiliations
Jonathan C. Petruccelli, Univ. at Albany (United States)
Tonmoy Chakraborty, Univ. at Albany (United States)


Published in SPIE Proceedings Vol. 9870:
Computational Imaging
Abhijit Mahalanobis; Kenneth S. Kubala; Amit Ashok; Jonathan C. Petruccelli; Lei Tian, Editor(s)

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