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Journal of Biomedicine and BiotechnologyVolume 2008 2008, Article ID 784354, 5 pages

Research ArticleAdvanced Computing and Simulation Laboratory AXL, Department of Electrical and Computer Systems Engineering, Monash University, Clayton, VIC 3800, Australia

Received 8 September 2007; Accepted 19 December 2007

Academic Editor: Daniel Howard

Copyright © 2008 Chintha C. Handapangoda and Malin Premaratne. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An approximate numerical technique for modeling optical pulse propagationthrough weakly scattering biological tissue is developed by solvingthe photon transport equation in biological tissue that includes varyingrefractive index and varying scattering-absorption coefficients. The proposedtechnique involves first tracing the ray paths defined by the refractiveindex profile of the medium by solving the eikonal equation usinga Runge-Kutta integration algorithm. The photon transport equation issolved only along these ray paths, minimizing the overall computationalburden of the resulting algorithm. The main advantage of the current algorithmis that it enables to discretise the pulse propagation space adaptivelyby taking optical depth into account. Therefore, computationalefficiency can be increased without compromising the accuracy of the algorithm.





Autor: Chintha C. Handapangoda and Malin Premaratne

Fuente: https://www.hindawi.com/



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