Open AccessA zero-crossing detection method applied to Doppler OCT
Author(s) -
Zhiqiang Xu,
Lionel Carrion,
R. Maciejko
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.004394
Subject(s) - zero crossing , laminar flow , doppler effect , optics , zero (linguistics) , signal (programming language) , physics , signal processing , laser doppler velocimetry , computer science , telecommunications , blood flow , radar , mechanics , medicine , linguistics , philosophy , quantum mechanics , astronomy , voltage , programming language
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.