Desjardins Adrien E, Vakoc Benjamin J, Suter Melissa J, Yun Seok-Hyun, Tearney Guillermo J, Bouma Brett E
Harvard Biophysics Program, Boston, MA 02115, USA.
IEEE Trans Med Imaging. 2009 Sep;28(9):1468-72. doi: 10.1109/TMI.2009.2017740. Epub 2009 Mar 24.
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.
我们提出了一种用于重建在光学频域成像（OFDI）中获取的干涉图的新颖算法。该算法是专门为在现场可编程门阵列（FPGA）中进行处理而开发的，其特点是使用了B样条插值的有限脉冲响应（FIR）滤波器实现，以有效地对k空间进行重采样。当在FPGA中实现时，该算法允许对由高速OFDI系统以54 kHz的频率和100 MS/s的采样率获取的干涉图进行实时处理。
