A zero-crossing detection method applied to Doppler OCT.
We present a numerical method based on the detection of the zero-crossing points in an OCT signal for the measurement of the Doppler frequency in a laminar flow. This method is compared to other processing approaches currently used in Doppler OCT. The results show that in the case of laminar flow the zero-crossing method gives the most precise results, especially in the higher velocity regime.
Xu
Zhiqiang
Z
Optoelectronics Laboratory, Engineering Physics, Ecole Polytechnique, P.O. Box 6079, Station "Centre-ville", Montréal, Quebec H3C3A7, Canada.
Carrion
Lionel
L
Maciejko
Roman
R
D000465:Algorithms; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D017078:Laser-Doppler Flowmetry / Q000379:methods*; D041623:Tomography, Optical Coherence / Q000379:methods*