Correction algorithm of restriction of linear phase-shift error in complex spectral OCT system

ZHENG Yu; LI Gang; LIU Jing-jing; ZHANG Tai-shi; LIN Ling

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Correction algorithm of restriction of linear phase-shift error in complex spectral OCT system

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- Correction algorithm of restriction of linear phase-shift error in complex spectral OCT system
- Optics and Precision Engineering Vol. 15, Issue 5, Pages: 753-760(2007)
- 作者机构：
  
  1. 天津大学精密仪器与光电子工程学院天津,300072
  2. 天津工业大学信息与通信工程学院天津,300160
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391;R814.42
- Received：10 December 2006，
  
  Revised：18 February 2007，
  
  Published Online：30 May 2007，
  
  Published：30 May 2007
- 稿件说明：
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ZHENG Yu, LI Gang, LIU Jing-jing, et al. Correction algorithm of restriction of linear phase-shift error in complex spectral OCT system[J]. Optics and precision engineering, 2007, 15(5): 753-760.
DOI：

ZHENG Yu, LI Gang, LIU Jing-jing, et al. Correction algorithm of restriction of linear phase-shift error in complex spectral OCT system[J]. Optics and precision engineering, 2007, 15(5): 753-760. DOI：

摘要

从理论上详细分析了经典相移算法对线性相移误差的敏感度

用频域和空域两种分析方法对定步长算法抑制线性相移误差的能力进行了分析。建立了含有线性相移误差复频域OCT空域分析法的仿真模型

并对测试样品进行了实验。实验结果表明

五帧相移算法对真实层析结构影响小

对镜像尾迹有完全的抑制作用

能够真正地实现100%的全量程的有效探测。

Abstract

The conventional phase-shift methods in acquiring initial phase under the impact of linear-shift error are analyzed

and the ability of a fixed step algorithm to restrict the linear phase-shift error is researched by frequency domain and spatial domain analysis methods. The emalation model of a Complex Spectral Optical Coherence Tomography(CSOCT) spatial analysis for linear phase-shift is established

and the results are given in accordance with emulation in spatial domain and experiment. The analysis indicates that five frame phase-shift method impacts real structures of the sample in a least degree

restricts mirror image best and obtains images of the sample in 100% range.

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