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用于测量混浊介质光学参数的加法-加倍反演算法的修正

Correction of an adding-doubling inversion algorithm for the measurement of the optical parameters of turbid media.

作者信息

Lemaillet Paul, Cooksey Catherine C, Hwang Jeeseong, Wabnitz Heidrun, Grosenick Dirk, Yang Lin, Allen David W

机构信息

National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA.

National Institute of Standards and Technology, 325 Broadway Street, Boulder, CO 80305, USA.

出版信息

Biomed Opt Express. 2017 Dec 4;9(1):55-71. doi: 10.1364/BOE.9.000055. eCollection 2018 Jan 1.

Abstract

We present broadband measurements of the optical properties of tissue-mimicking solid phantoms using a single integrating sphere to measure the hemispherical reflectance and transmittance under a direct illumination at the normal incident angle. These measurements are traceable to reflectance and transmittance scales. An inversion routine using the output of the adding-doubling algorithm restricted to the reflectance and transmittance under a direct illumination was developed to produce the optical parameters of the sample along with an uncertainty budget at each wavelength. The results for two types of phantoms are compared to measurements by time-resolved approaches. The results between our method and these independent measurements agree within the estimated measurement uncertainties.

摘要

我们展示了使用单个积分球对仿组织固体模型的光学特性进行的宽带测量,以测量在垂直入射角的直接照明下的半球反射率和透射率。这些测量可追溯到反射率和透射率标度。开发了一种反演程序,该程序使用限于直接照明下的反射率和透射率的加倍算法输出,以生成样品的光学参数以及每个波长下的不确定度预算。将两种类型模型的结果与时间分辨方法的测量结果进行了比较。我们的方法与这些独立测量结果之间的差异在估计的测量不确定度范围内。

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