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

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

Abstract

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.

MeSH terms

  • Algorithms*
  • Fingers / anatomy & histology
  • Humans
  • Interferometry / methods*
  • Signal Processing, Computer-Assisted*
  • Skin / anatomy & histology