基于旋转偏振角的线偏振扫描成像方法研究

被引:9
作者
蒋啸宇
曾楠
何永红
马辉
机构
[1] 清华大学深圳研究生院光学检测与成像实验室
关键词
偏振成像; 线偏振; 偏振角; 各向异性度;
D O I
暂无
中图分类号
O436.3 [偏振与色散];
学科分类号
070207 ; 0803 ;
摘要
提出一种基于旋转偏振角的新的偏振光成像方法:改变入射线偏振光偏振角和检偏角,采集样品图像系列,总结出背向散射光2个正交偏振分量的光强差关于入射线偏振光偏振角和检偏角的函数关系式.通过对模拟散射介质,猪肉脂肪,猪肉骨骼肌和牛肉骨骼肌等样品进行实验,论证了偏振差函数式中各个参数与样品光学特性之间的联系,并从中提取出2个相互独立的参数,分别表征样品的纤维方向角和光学各向异性度,从而实现对样品浅表层光学特性进行定量测量.和普通光强图像相比,用这些独立的光学信息生成不同基色的图像,能更直观明了地区分组织结构差异,具有潜在的临床医学应用价值,如成为一种皮肤疾病、皮肤损伤的检测方法.
引用
收藏
页码:659 / 663
页数:5
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