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Journal of Biomedical Optics • Open Access

Real-time diffuse optical tomography based on structured illumination
Author(s): Samuel Bélanger; Maxime Abran; Xavier Intes; Christian Casanova; Frederic Lesage

Paper Abstract

A new optical acquisition scheme based on a pair of digital micromirror devices is developed and applied to three-dimensional tomographic imaging of turbid media. By using pairs of illumination-detection patterns with a single detector, we were able to perform high-resolution quantitative volumetric imaging of absorption heterogeneities embedded in optically thick samples. Additionally, a tomographic reconstruction algorithm was implemented on a graphical processor unit to provide optical reconstructions at a frame rate of 2 Hz. The structured illumination method proposed in this work has significant cost advantages over camera systems, as only a single detector is required. This configuration also has the potential to increase frame rate.

Paper Details

Date Published: 1 January 2010
PDF: 7 pages
J. Biomed. Opt. 15(1) 016006 doi: 10.1117/1.3290818
Published in: Journal of Biomedical Optics Volume 15, Issue 1
Show Author Affiliations
Samuel Bélanger, Ecole Polytechnique de Montréal (Canada)
Maxime Abran, Ecole Polytechnique de Montréal (Canada)
Xavier Intes, Rensselaer Polytechnic Institute (United States)
Christian Casanova, Univ. de Montréal (Canada)
Frederic Lesage, Ecole Polytechnique de Montréal (Canada)

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