Wang Ruikang K, Ma Zhenhe
Department of Biomedical Engineering, Oregon Health & Science University, Beaverton, OR 97006, USA.
Phys Med Biol. 2006 Jun 21;51(12):3231-9. doi: 10.1088/0031-9155/51/12/015. Epub 2006 Jun 6.
A simple method is introduced to eliminate the autocorrelation artefacts in ultrafast spectral domain optical coherence tomography (SOCT) by use of the ensemble average of spectra within an individual B scan as the background signal, and then subtracting this from all the A scans within that B scan before performing the FFTs. This is updated continuously frame by frame. The method is tested on a volume-rate (C-mode) SOCT system to image the human fingertip in vivo with a volume rate at 8 s.
介绍了一种简单的方法，通过将单个B扫描内的光谱总体平均值用作背景信号，来消除超快光谱域光学相干断层扫描（SOCT）中的自相关伪影，然后在执行快速傅里叶变换（FFT）之前，从该B扫描内的所有A扫描中减去此背景信号。该过程逐帧连续更新。该方法在体速率（C模式）SOCT系统上进行了测试，以8秒的体速率对活体人体指尖进行成像。
