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Proceedings Paper

Three-element phased-array approach to improve the spatial resolution in diffuse optical imaging
Author(s): N. Liu; A. Sassaroli; M. A. Zucker; S. Fantini
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Paper Abstract

A three-element phased array approach based on post processing of continuous wave data for enhancing the spatial resolution of highly scattering media is presented. The method is based on the scanning of a three sources -one detector array along the system under investigation. The sources are turned on and offin a sequential mode in order to avoid cross talk among them. At each position of the sources-detector system along the medium intensity data are collected from the sources, multiplied by amplitude and phase factors, and combined in a phased-array algorithm. Optimal choices of the amplitude and phase factors are discussed. Experimental and theoretical evidence of the improved spatial resolution obtained with this method is provided.

Paper Details

Date Published: 22 June 2005
PDF: 7 pages
Proc. SPIE 5771, Saratov Fall Meeting 2004: Optical Technologies in Biophysics and Medicine VI, (22 June 2005); doi: 10.1117/12.634819
Show Author Affiliations
N. Liu, Tufts Univ. (United States)
A. Sassaroli, Tufts Univ. (United States)
M. A. Zucker, Tufts Univ. (United States)
S. Fantini, Tufts Univ. (United States)

Published in SPIE Proceedings Vol. 5771:
Saratov Fall Meeting 2004: Optical Technologies in Biophysics and Medicine VI
Valery V. Tuchin, Editor(s)

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