## Source-detector calibration in three-dimensional Bayesian optical diffusion tomography

JOSA A, Vol. 19, Issue 10, pp. 1983-1993 (2002)

http://dx.doi.org/10.1364/JOSAA.19.001983

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### Abstract

Optical diffusion tomography is a method for reconstructing three-dimensional optical properties from light that passes through a highly scattering medium. Computing reconstructions from such data requires the solution of a nonlinear inverse problem. The situation is further complicated by the fact that while reconstruction algorithms typically assume exact knowledge of the optical source and detector coupling coefficients, these coupling coefficients are generally not available in practical measurement systems. A new method for estimating these unknown coupling coefficients in the three-dimensional reconstruction process is described. The joint problem of coefficient estimation and three-dimensional reconstruction is formulated in a Bayesian framework, and the resulting estimates are computed by using a variation of iterative coordinate descent optimization that is adapted for this problem. Simulations show that this approach is an accurate and efficient method for simultaneous reconstruction of absorption and diffusion coefficients as well as the coupling coefficients. A simple experimental result validates the approach.

© 2002 Optical Society of America

**OCIS Codes**

(100.3010) Image processing : Image reconstruction techniques

(100.3190) Image processing : Inverse problems

(100.6890) Image processing : Three-dimensional image processing

(170.5280) Medical optics and biotechnology : Photon migration

**Citation**

Seungseok Oh, Adam B. Milstein, R. P. Millane, Charles A. Bouman, and Kevin J. Webb, "Source-detector calibration in three-dimensional Bayesian optical diffusion tomography," J. Opt. Soc. Am. A **19**, 1983-1993 (2002)

http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-19-10-1983

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