22 February 2017 High-speed complete OCT signal processing solution
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Abstract
Optical coherence tomography (OCT) imaging systems can now produce MB=s to GB=s data streams. We present a complete solution for signal acquisition up to 4 GS/s and on-board field programmable gate array (FPGA) OCT processing matching the high acquisition speed. On-board OCT signal processing virtually eliminates the downstream signal processing and data throughput bottleneck. Complex filtering allows for windowing and dispersion compensation. Data is zero-padded when the number of samples is not a power of 2. The Fast Fourier Transform (FFT) engine can match the maximum acquisition speed when performing 4096-point FFTs. Output data can be linear amplitude or logarithmic and represented on several floating-point or integer precisions. This hardware solution comes with dedicated software and software development kit.
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Romain Deterre, Romain Deterre, Routzbeh Khatibi, Routzbeh Khatibi, Etienne De Montigny, Etienne De Montigny, Muneeb Khalid, Muneeb Khalid, } "High-speed complete OCT signal processing solution", Proc. SPIE 10076, High-Speed Biomedical Imaging and Spectroscopy: Toward Big Data Instrumentation and Management II, 100761G (22 February 2017); doi: 10.1117/12.2250219; https://doi.org/10.1117/12.2250219
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