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Real-Time FPGA Processing for High-Speed Optical Frequency Domain Imaging

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6 Author(s)
Desjardins, A.E. ; Harvard Biophys. Program, Boston, MA, USA ; Vakoc, B.J. ; Suter, M.J. ; Seok-Hyun Yun
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We present a novel algorithm for reconstructing interferograms acquired in optical frequency domain imaging (OFDI). The algorithm was developed specifically for processing in field programmable gate arrays (FPGAs) and featured the use of a finite-impulse-response (FIR) filter implementation of B-spline interpolation for efficiently re-sampling k-space. When implemented in FPGAs, the algorithm allowed for real-time processing of interferograms acquired with a high-speed OFDI system at 54 kHz and a sampling rate of 100 MS/s.

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Medical Imaging, IEEE Transactions on  (Volume:28 ,  Issue: 9 )