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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 14 — Jul. 15, 2001
  • pp: 1066–1068

Photon-transport forward model for imaging in turbid media

M. Xu, W. Cai, M. Lax, and R. R. Alfano  »View Author Affiliations


Optics Letters, Vol. 26, Issue 14, pp. 1066-1068 (2001)
http://dx.doi.org/10.1364/OL.26.001066


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Abstract

A photon-transport forward model for image reconstruction in turbid media is derived that treats weak inhomogeneities through a Born approximation of the Boltzmann radiative transfer equation. This model can conveniently replace the commonly used diffusion approximation in optical tomography. An analytical expression of the background Green's function is obtained from the cumulant solution of the Boltzmann equation. Our model provides the correct behavior of photon migration at early times and reduces at long times to the center-moved diffusion approximation. Numerical comparisons between this model and the standard and center-moved diffusion models are presented.

© 2001 Optical Society of America

OCIS Codes
(030.5620) Coherence and statistical optics : Radiative transfer
(170.6960) Medical optics and biotechnology : Tomography
(290.7050) Scattering : Turbid media

Citation
M. Xu, W. Cai, M. Lax, and R. R. Alfano, "Photon-transport forward model for imaging in turbid media," Opt. Lett. 26, 1066-1068 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-14-1066

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