用于散斑减少的角高速大规模并行检测光谱域光相干断层扫描。

Angular high-speed massively parallel detection spectral-domain optical coherence tomography for speckle reduction.

出版信息

J Biomed Opt. 2011 Jun;16(6):060504. doi: 10.1117/1.3589093.

Abstract

We demonstrate speckle reduction based on angular compounding using parallel-detection spectral-domain optical coherence tomography (OCT). An ultrahigh-speed two-dimensional complementary metal-oxide semiconductor camera acquired angular and spectral interference fringes (128 × 1024 pixels) simultaneously at 15,000 frames/s for a single lateral point. A signal-to-noise ratio improvement of 8 dB was achieved for imaging human skin in vivo by averaging 121 angle-resolved OCT images.

摘要

我们展示了基于角度复合同步的散斑减少，使用的是平行检测光谱域光相干断层扫描（OCT）。超高速二维互补金属氧化物半导体相机以 15000 帧/秒的速度同时获取角度和光谱干涉条纹（128×1024 像素），用于单个横向点。通过平均 121 个角度分辨 OCT 图像，实现了 8dB 的信噪比提高，用于对体内人皮肤进行成像。