Weber Anke, Cheney Michael, Smithwick Quinn, Elsner Ann
Opt Express. 2004 Oct 18;12(21):5178-90. doi: 10.1364/opex.12.005178.
We applied a polarimetric analysis to retinal imaging, to examine the potential improvement in characterizing blood vessels. To minimize the reflection artifact of the superficial wall of the blood vessel, we computed depolarized light images by removing the polarization retaining light reaching the instrument. These depolarized light images were compared to images from the average of all the light. Michelson contrast was computed for the vessel profiles across arteries and veins, and was higher for the depolarized light images. Depolarized light images provide one step towards improving the characterization of retinal blood vessels.
我们将偏振分析应用于视网膜成像，以检验在表征血管方面的潜在改进。为了最小化血管浅表壁的反射伪影，我们通过去除到达仪器的保留偏振光来计算去偏振光图像。将这些去偏振光图像与所有光的平均值所形成的图像进行比较。计算了动脉和静脉血管轮廓的迈克尔逊对比度，去偏振光图像的对比度更高。去偏振光图像为改善视网膜血管的表征迈出了一步。
