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Proceedings Paper

Phase-retrieved optical projection tomography for 3D imaging through scattering layers
Author(s): Daniele Ancora; Diego Di Battista; Georgia Giasafaki; Stylianos Psycharakis; Evangelos Liapis; Athanasios Zacharopoulos; Giannis Zacharakis
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Paper Abstract

Recently great progress has been made in biological and biomedical imaging by combining non-invasive optical methods, novel adaptive light manipulation and computational techniques for intensity-based phase recovery and three dimensional image reconstruction. In particular and in relation to the work presented here, Optical Projection Tomography (OPT) is a well-established technique for imaging mostly transparent absorbing biological models such as C. Elegans and Danio Rerio. On the contrary, scattering layers like the cocoon surrounding the Drosophila during the pupae stage constitutes a challenge for three dimensional imaging through such a complex structure. However, recent studies enabled image reconstruction through scattering curtains up to few transport mean free paths via phase retrieval iterative algorithms allowing to uncover objects hidden behind complex layers. By combining these two techniques we explore the possibility to perform a three dimensional image reconstruction of fluorescent objects embedded between scattering layers without compromising its structural integrity. Dynamical cross correlation registration was implemented for the registration process due to translational and flipping ambiguity of the phase retrieval problem, in order to provide the correct aligned set of data to perform the back-projection reconstruction. We have thus managed to reconstruct a hidden complex object between static scattering curtains and compared with the effective reconstruction to fully understand the process before the in-vivo biological implementation.

Paper Details

Date Published: 9 March 2016
PDF: 5 pages
Proc. SPIE 9718, Quantitative Phase Imaging II, 97181B (9 March 2016); doi: 10.1117/12.2211415
Show Author Affiliations
Daniele Ancora, Foundation for Research and Technology-Hellas (Greece)
Univ. of Crete (Greece)
Diego Di Battista, Foundation for Research and Technology-Hellas (Greece)
Univ. of Crete (Greece)
Georgia Giasafaki, Univ. of Crete (Greece)
Stylianos Psycharakis, Foundation for Research and Technology-Hellas (Greece)
Evangelos Liapis, Foundation for Research and Technology-Hellas (Greece)
Athanasios Zacharopoulos, Foundation for Research and Technology-Hellas (Greece)
Giannis Zacharakis, Foundation for Research and Technology-Hellas (Greece)

Published in SPIE Proceedings Vol. 9718:
Quantitative Phase Imaging II
Gabriel Popescu; YongKeun Park, Editor(s)

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