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The Second-Order Born Approximation in Diffuse Optical Tomography

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  • Kiwoon Kwon

Abstract

Diffuse optical tomography is used to find the optical parameters of a turbid medium with infrared red light. The problem is mathematically formulated as a nonlinear problem to find the solution for the diffusion operator mapping the optical coefficients to the photon density distribution on the boundary of the region of interest, which is also represented by the Born expansion with respect to the unperturbed photon densities and perturbed optical coefficients. We suggest a new method of finding the solution by using the second-order Born approximation of the operator. The error analysis for the suggested method based on the second-order Born approximation is presented and compared with the conventional linearized method based on the first-order Born approximation. The suggested method has better convergence order than the linearized method, and this is verified in the numerical implementation.

Suggested Citation

  • Kiwoon Kwon, 2012. "The Second-Order Born Approximation in Diffuse Optical Tomography," Journal of Applied Mathematics, Hindawi, vol. 2012, pages 1-15, March.
    • Handle: RePEc:hin:jnljam:637209
    DOI: 10.1155/2012/637209
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