Accurate and efficient Monte Carlo solutions to the radiative transport equation in the spatial frequency domain

被引：27
|
作者：
Gardner, Adam R. [1 ]
Venugopalan, Vasan [1 ]
机构：
[1] Univ Calif Irvine, Dept Chem Engn & Mat Sci, Laser Microbeam & Med Program, Beckman Laser Inst, Irvine, CA 92697 USA
来源：
OPTICS LETTERS | 2011年 / 36卷 / 12期
基金：
美国国家卫生研究院;
关键词：
PHOTON MIGRATION; MEDIA;
D O I：
10.1364/OL.36.002269
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present an approach to solving the radiative transport equation (RTE) for layered media in the spatial frequency domain (SFD) using Monte Carlo (MC) simulations. This is done by obtaining a complex photon weight from analysis of the Fourier transform of the RTE. We also develop a modified shortcut method that enables a single MC simulation to efficiently provide RTE solutions in the SFD for any number of spatial frequencies. We provide comparisons between the modified shortcut method and conventional discrete transform methods for SFD reflectance. Further results for oblique illumination illustrate the potential diagnostic utility of the SFD phase-shifts for analysis of layered media. (c) 2011 Optical Society of America
引用
收藏
页码：2269 / 2271
页数：3
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