Transverse flow velocity quantification using optical coherence tomography with correlation

被引：31
|
作者：
Shen, Z. Y. [1 ,2 ]
Wang, M. [1 ,2 ]
Ji, Y. H. [3 ,4 ]
He, Y. H. [1 ,2 ]
Dai, X. S. [1 ]
Li, P. [1 ]
Ma, H. [1 ,2 ]
机构：
[1] Tsinghua Univ, Lab Opt Imaging & Sensing, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China
[2] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[3] S China Normal Univ, MOE Key Lab Laser Life Sci, Guangzhou 510631, Guangdong, Peoples R China
[4] S China Normal Univ, Inst Laser Life Sci, Guangzhou 510631, Guangdong, Peoples R China
来源：
LASER PHYSICS LETTERS | 2011年 / 8卷 / 04期
关键词：
optical coherence tomography; transverse velocity; correlation; TISSUES IN-VITRO; DOPPLER TOMOGRAPHY; BLOOD-FLOW; HUMAN SKIN; VISUALIZATION; DIFFUSION; GLYCEROL; SPEED;
D O I：
10.1002/lapl.201010126
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We describe a method that uses classic optical coherence tomography to measure the transverse fluid-flow velocity quantitatively without knowing the Doppler angle. An intensity based cross-correlation calculation is taken point-to-pointly between two close cross sections of the scattering fluid to estimate the time delay for scattering particles passing through the two sections which are scanned alternately. The transverse velocity distribution of the scattering fluid-flow in the whole section is achieved finally. The experimental results agree well with the preset ones. This method is insensitive to the Doppler angle and provides a variable velocity detection range in different application conditions. (C) 2011 by Astro Ltd. Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA
引用
收藏
页码：318 / 323
页数：6
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