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IEEE Trans Med Imaging. 2009 Sep;28(9):1468-72. doi: 10.1109/TMI.2009.2017740. Epub 2009 Mar 24.

Real-time FPGA processing for high-speed optical frequency domain imaging.

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  • 1Harvard Biophysics Program, Boston, MA 02115, USA. adrien.desjardins@post.harvard.edu


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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