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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 5 — Mar. 1, 2010
  • pp: 688–690

Hybrid Fourier-real space method for diffuse optical tomography

Jorge Ripoll  »View Author Affiliations

Optics Letters, Vol. 35, Issue 5, pp. 688-690 (2010)

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Optical tomography has recently witnessed a substantial increase in the size of the data sets used, mainly owing to the use of CCD cameras. Larger data sets render 3D reconstructions more robust, quantitative, and reproducible, but also significantly increase the computing time needed to generate the reconstructed data. Approaches working with spatial-frequencies instead of real space variables seem to be the method of choice in this case, and a direct inversion method that can produce three-dimensional images from very large detector numbers ( > 10 5 ) using either very large source numbers ( > 10 3 ) [ Phys. Rev. E 64, 035601 (2001) ] or structured illumination [ Opt. Lett. 34, 983 (2009) ] has been presented. However, most small animal imaging setups typically incur a practical upper limit of only 10 2 sources mainly due to imaging time constraints, and currently all relying on point source illumination. In this Letter, what we believe to be a new approach, which combines Fourier and real space functions, is shown, which fills the gap between traditional fiber-based small data sets that are solved in real space and the very large data sets solved entirely in spatial-frequency domain.

© 2010 Optical Society of America

OCIS Codes
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.5280) Medical optics and biotechnology : Photon migration
(170.6510) Medical optics and biotechnology : Spectroscopy, tissue diagnostics
(280.0280) Remote sensing and sensors : Remote sensing and sensors

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: November 10, 2009
Revised Manuscript: January 13, 2010
Manuscript Accepted: January 15, 2010
Published: February 25, 2010

Virtual Issues
Vol. 5, Iss. 6 Virtual Journal for Biomedical Optics

Jorge Ripoll, "Hybrid Fourier-real space method for diffuse optical tomography," Opt. Lett. 35, 688-690 (2010)

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