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Proceedings Paper

Structured illumination and time gated detection for diffuse optical imaging
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Paper Abstract

Temporal propagation of sinusoidally modulated light in in-homogeneous diffusive samples is investigated experimentally and by finite element simulations, showing that the amplitude and the phase of the sinusoid are affected by the presence of inclusions. Enhancement of imaging resolution with high spatial frequencies and early time-gating is shown. Detection of the phase of the modulated light is proposed as a new method for the accurate localization of tissue in-homogeneities. A fast 3-dimensional reconstruction based on the detection of spatially modulated light at a limited number of spatial frequencies is discussed.

Paper Details

Date Published: 9 July 2009
PDF: 7 pages
Proc. SPIE 7369, Diffuse Optical Imaging II, 73690Q (9 July 2009); doi: 10.1117/12.831701
Show Author Affiliations
Cosimo D'Andrea, National Lab. for Ultrafast and Ultraintense Optical Science, CNR (Italy)
Politecnico di Milano (Italy)
Andrea Bassi, National Lab. for Ultrafast and Ultraintense Optical Science, CNR (Italy)
Politecnico di Milano (Italy)
Gianluca Valentini, National Lab. for Ultrafast and Ultraintense Optical Science, CNR (Italy)
Politecnico di Milano, Istituto Italiano di Tecnologia (Italy)
Rinaldo Cubeddu, National Lab. for Ultrafast and Ultraintense Optical Science, CNR (Italy)
Politecnico di Milano, Istituto Italiano di Tecnologia (Italy)
Simon Arridge, Ctr. for Medical Image Computing, Univ. College London (United Kingdom)


Published in SPIE Proceedings Vol. 7369:
Diffuse Optical Imaging II
Rinaldo Cubeddu; Andreas H. Hielscher, Editor(s)

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