A practical approach to eliminate autocorrelation artefacts for volume-rate spectral domain optical coherence tomography.
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.
Wang
Ruikang K
RK
Department of Biomedical Engineering, Oregon Health & Science University, Beaverton, OR 97006, USA. r.k.wang@bme.ogi.edu
Ma
Zhenhe
Z
D000465:Algorithms; D016477:Artifacts; D005385:Fingers / Q000033:anatomy & histology; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012867:Skin / Q000166:cytology; D013223:Statistics as Topic; D041623:Tomography, Optical Coherence / Q000379:methods*