首页> 外文会议>Conference on Optical Coherence tomography and coherence domain optical methods in biomedicine XXI >High contrast and polarization-artifact-free optical coherence tomography by maximum a-posteriori estimation
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High contrast and polarization-artifact-free optical coherence tomography by maximum a-posteriori estimation

机译:通过最大A-Bouthiori估计通过高对比度和极化 - 无仿真光学相干断层扫描

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We propose a maximum a-posteriori (MAP) intensity estimator to improve the image contrast of polarization diversity (PD)-OCT imaging to achieve high contrast polarization-artifact-free images. The MAP estimator compensates for the inevitable reduction of signal-to-noise ratio (SNR) in PD-OCT caused by the splitting of power into two polarization detection channels. It also has low noise-offset in low intensity regions such as the vitreous. This method is applied to posterior eye images, and shows high-contrast, polarization-artifact-free images. This method also enables attenuation coefficient imaging with finer differentiation of attenuation levels.
机译:我们提出了最大A-Bouthiori(MAP)强度估计器,以改善偏振分集(PD)-OCT成像的图像对比度,以实现高对比度极化 - 无伪图像。地图估计器补偿了由电力分离为两个偏振检测通道引起的PD-OT0中的信噪比(SNR)的不可避免地降低。它在低强度区域中也具有低噪声偏移,例如玻璃体。该方法应用于后眼图像,并显示出高对比度,极化 - 无伪图像的图像。该方法还可以使衰减系数成像具有更精细的衰减水平的分化。

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