1 January 2007 Frequency tracking in optical Doppler tomography using an adaptive notch filter
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Abstract
Optical Doppler tomography is a valuable functional extension of optical coherence tomography (OCT) that can be used to study subsurface blood flows of biological tissues. We propose a novel frequency estimation technique that uses an adaptive notch filter (ANF) to track the depth-resolved Doppler frequency. This new technique is a minimal-parameter filter and works in the time domain without the need of Fourier transformation. Therefore, the algorithm has a computationally efficient structure that may be well suited for implementation in real-time ODT systems. Our simulations and imaging results also demonstrate that this filter has good performance in terms of noise robustness and estimation accuracy compared with existing estimation algorithms.
© (2007) Society of Photo-Optical Instrumentation Engineers (SPIE)
Yueli Chen, Yueli Chen, Peter K. Willett, Peter K. Willett, Quing Zhu, Quing Zhu, } "Frequency tracking in optical Doppler tomography using an adaptive notch filter," Journal of Biomedical Optics 12(1), 014018 (1 January 2007). https://doi.org/10.1117/1.2710240 . Submission:
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