Unknown

Dataset Information

0

GPU-accelerated non-uniform fast Fourier transform-based compressive sensing spectral domain optical coherence tomography.


ABSTRACT: We implemented the graphics processing unit (GPU) accelerated compressive sensing (CS) non-uniform in k-space spectral domain optical coherence tomography (SD OCT). Kaiser-Bessel (KB) function and Gaussian function are used independently as the convolution kernel in the gridding-based non-uniform fast Fourier transform (NUFFT) algorithm with different oversampling ratios and kernel widths. Our implementation is compared with the GPU-accelerated modified non-uniform discrete Fourier transform (MNUDFT) matrix-based CS SD OCT and the GPU-accelerated fast Fourier transform (FFT)-based CS SD OCT. It was found that our implementation has comparable performance to the GPU-accelerated MNUDFT-based CS SD OCT in terms of image quality while providing more than 5 times speed enhancement. When compared to the GPU-accelerated FFT based-CS SD OCT, it shows smaller background noise and less side lobes while eliminating the need for the cumbersome k-space grid filling and the k-linear calibration procedure. Finally, we demonstrated that by using a conventional desktop computer architecture having three GPUs, real-time B-mode imaging can be obtained in excess of 30 fps for the GPU-accelerated NUFFT based CS SD OCT with frame size 2048(axial) × 1,000(lateral).

SUBMITTER: Xu D 

PROVIDER: S-EPMC4083058 | biostudies-other | 2014 Jun

REPOSITORIES: biostudies-other

Similar Datasets

| S-EPMC3358119 | biostudies-other
| S-EPMC4114772 | biostudies-literature
| S-EPMC8433235 | biostudies-literature
| S-EPMC3288719 | biostudies-literature
| S-EPMC3443681 | biostudies-other
| S-EPMC5834390 | biostudies-literature
| S-EPMC6147431 | biostudies-literature
| S-EPMC3107871 | biostudies-literature
| S-EPMC4300192 | biostudies-literature
| S-EPMC8320867 | biostudies-literature