1 May 2004 Digital signal processor-based real-time optical Doppler tomography system
Author Affiliations +
J. of Biomedical Optics, 9(3), (2004). doi:10.1117/1.1695409
We present a real-time data-processing and display unit based on a custom-designed digital signal processor (DSP) module for imaging tissue structure and Doppler blood flow. The DSP module is incorporated into a conventional optical coherence tomography system. We also demonstrate the flexibility of embedding advanced Doppler processing algorithms in the DSP module. Two advanced velocity estimation algorithms previously introduced by us are incorporated in this DSP module. Experiments on Intralipid flow demonstrate that a pulsatile flow of several hundred pulses per minute can be faithfully captured in M-scan mode by this DSP system. In vivo imaging of a rat's abdominal blood flow is also presented.
Shikui Yan, Daqing Piao, Yueli Chen, Quing Zhu, "Digital signal processor-based real-time optical Doppler tomography system," Journal of Biomedical Optics 9(3), (1 May 2004). http://dx.doi.org/10.1117/1.1695409

Digital signal processing

Signal processing

Image processing

Filtering (signal processing)

Optical filters

Doppler effect

Electronic filtering

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