Correcting Optical-Axis Calculation in Polarization-Sensitive Optical Coherence Tomography

被引:8
|
作者
Fan, Chuanmao [1 ]
Yao, Gang [1 ]
机构
[1] Univ Missouri, Dept Biol Engn, Columbia, MO 65211 USA
基金
美国国家科学基金会;
关键词
Biomedical optical imaging; image processing; optical imaging; polarization; BIOLOGICAL TISSUE; BIREFRINGENCE; OCT;
D O I
10.1109/TBME.2010.2053927
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Polarization-sensitive optical coherence tomography (PSOCT) has found many applications in imaging birefringence tissue samples. Polarization-sensitive detection is often implemented by utilizing a circularly polarized incident light and detecting the two orthogonal horizontal- and vertical-polarized interference components. However, the obtained optical axes images were inappropriately represented as depth-dependent periodic maps in all reported studies. A detailed analysis confirmed that this misrepresentation was caused by the accumulation of optical retardation with depth. A simple method was proposed to numerically correct this optical-axis calculation. Experimental studies in tendon tissue demonstrated that this method can be applied to map the 2-D optical-axis distributions in enface PSOCT images.
引用
收藏
页码:2556 / 2559
页数:4
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