Iftimia N, Jiang H
Department of Physics and Astronomy, Biomedical Optics Laboratory, Clemson University, Clemson, South Carolina 29634-0978, USA.
Appl Opt. 2000 Oct 1;39(28):5256-61. doi: 10.1364/ao.39.005256.
We present a detailed experimental study concerning quantitative optical property reconstruction of heterogeneous turbid media by use of absolute dc data only. We performed experiments by using tissuelike phantoms in both single-target and multitarget configurations in which variations in target size and optical contrast with the background were explored. Our results show that both scattering and absorption images can be reconstructed quantitatively by use of dc data only, whereas it was impossible to obtain such quantitative information in previously reported studies. We believe that this improvement is primarily a result of the realization of a novel data preprocessing/optimization scheme for accurately determining several critical parameters needed for reconstruction. The use of this data preprocessing/optimization scheme also eliminates the calibration reference measurement previously required for reconstruction. Experimental confirmation of this scheme is given in detail.
我们展示了一项详细的实验研究，该研究仅使用绝对直流数据来对非均匀混浊介质的定量光学特性进行重建。我们通过在单目标和多目标配置下使用组织样体模进行实验，其中探索了目标大小以及与背景的光学对比度的变化。我们的结果表明，仅使用直流数据就可以定量重建散射和吸收图像，而在先前报道的研究中无法获得此类定量信息。我们认为这一改进主要是由于实现了一种新颖的数据预处理/优化方案，用于准确确定重建所需的几个关键参数。使用这种数据预处理/优化方案还消除了先前重建所需的校准参考测量。详细给出了该方案的实验验证。
