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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 18, Iss. 1 — Jan. 1, 2001
  • pp: 224–231

Vertex/propagator model for least-scattered photons traversing a turbid medium

Ruikang K. Wang and Michael Wilson  »View Author Affiliations


JOSA A, Vol. 18, Issue 1, pp. 224-231 (2001)
http://dx.doi.org/10.1364/JOSAA.18.000224


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Abstract

The least-scattered photons that arrive at a detector through highly scattering tissues have the potential to image internal structures, functions, and status with high imaging resolution. In contrast, optical diffusing tomography is based on the use of the late-arriving photons, which have been diffusely scattered, leading to very low imaging resolution. A good model of the early-arriving photons, i.e., the least-scattered photons, may have a significant effect on the development of imaging algorithms and a further understanding of imaging mechanisms within current high-resolution optical-imaging techniques. We describe a vertex/propagator approach that attempts to find the probabilities for least-scattered photons traversing a scattering medium, based on analytical expressions for photon histories. The basic mathematical derivations for the model are outlined, and the results are discussed and found to be in very good agreement with those from the Monte Carlo simulations.

© 2001 Optical Society of America

OCIS Codes
(170.1650) Medical optics and biotechnology : Coherence imaging
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.7050) Medical optics and biotechnology : Turbid media
(290.4210) Scattering : Multiple scattering

Citation
Ruikang K. Wang and Michael Wilson, "Vertex/propagator model for least-scattered photons traversing a turbid medium," J. Opt. Soc. Am. A 18, 224-231 (2001)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-18-1-224

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