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首页> 外文期刊>Optics Letters >Single-camera sequential-scan-based polarization-sensitive SDOCT for retinal imaging
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Single-camera sequential-scan-based polarization-sensitive SDOCT for retinal imaging

机译：单相机基于顺序扫描的偏振敏感SDOCT用于视网膜成像

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摘要

A single-camera, high-speed, polarization-sensitive, spectral-domain optical-coherence-tomography systemnwas developed to measure the polarization properties of the in vivo human retina. A novel phase-nunwrapping method in birefringent media is described to extract the total reflectivity, accumulative retar-ndance, and fast-axis orientation from a specially designed sequence of polarization states incident on thensample. A quarter-wave plate was employed to test the performance of the system. The average error andnstandard deviation of retardation measurements were 3.2° and 2.3°, respectively, and of the fast-axis orien-ntation 1.2° and 0.7° over the range of 0°–180°. The depolarization properties of the retinal pigment epithe-nlium were clearly observed in both retardance and fast-axis orientation image. A normalized standard de-nviation of the retardance and of the fast-axis orientation is introduced to segment the polarization-nscrambling layer of the retinal pigment epithelium. © 2009 Optical Society of America
机译：开发了一种单相机，高速，偏振敏感的光谱域光学相干断层扫描系统，以测量体内人视网膜的偏振特性。描述了一种在双折射介质中新颖的相位解缠方法，该方法可从专门设计的入射在样品上的偏振态序列中提取总反射率，累积阻滞和快轴取向。使用四分之一波片来测试系统的性能。延迟测量的平均误差和标准偏差分别为3.2°和2.3°，在0°–180°范围内，快速轴定向的平均误差为1.2°和0.7°。视网膜色素上皮细胞的去极化特性在延迟和快速轴取向图像中均清晰可见。引入延迟和快速轴取向的标准化标准偏差以分割视网膜色素上皮的偏振加扰层。 ©2009美国眼镜学会

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  • 来源
    《Optics Letters》 |2009年第2期|p.205-207|共3页
  • 作者

    Mingtao Zhao* and Joseph A. Izatt;

  • 作者单位

    Department of Biomedical Engineering, Fitzpatrick Institute for Photonics, Duke University, 136 Hudson Hall,Box 90281, Durham, North Carolina 27705, USA* Corresponding author: mingtao.zhao@duke.edu;

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