Role of higher-order scattering in solutions to the forward and inverse optical-imaging problems in random media

被引：7

作者：

SevickMuraca, EM

Heintzelman, DL

Lee, J

Troy, TL

Paithankar, DY

机构：

[1] School of Chemical Engineering, Purdue University, West Lafeyette, IN

来源：

APPLIED OPTICS | 1997年 / 36卷 / 34期

关键词：

photon migration imaging; image reconstruction; frequency-domain; inverse problem; biomedical optical imaging;

D O I：

10.1364/AO.36.009058

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

From analytical and numerical solutions that predict the scattering of diffuse photon density waves and from experimental measurements of changes in phase shift theta and ac amplitude demodulation M caused by the presence of single and double cylindrical heterogeneities, we show that second-and higher-order perturbations can affect the prediction of the propagation characteristics of diffuse photon density waves. Our experimental results for perfect absorbers in a lossless medium suggest that the performance of fast inverse-imaging algorithms that use first-order Born or Rytov approximations might have inherent limitations compared with inverse solutions that use iterative solutions of a linear perturbation equation or numerical solutions of the diffusion equation. (C) 1997 Optical Society of America.

引用

页码：9058 / 9067

页数：10

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[2]

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