Graphics processing unit-accelerated real-time compressive sensing spectral domain optical coherence tomography

Daguang Xu*, Yong Huang, Jin U. Kang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

In this paper, we systematically demonstrate two real-time CS SD OCT systems based on a conventional desktop having three GPUs. The first one takes fast Fourier transform (FFT) as the sensing technique and under-sampled linear wavenumber spectral sampling as input data, while the second one uses non-uniform fast Fourier transform (NUFFT) and under-sampled nonlinear wavenumber spectral sampling, respectively. The maximum reconstruction speed of 72k and 33.5k A-line/s were achieved for these two systems, respectively, with A-scan size 2048. It is >100 times faster than the C++ implementation and >400 times faster than the MATLAB implementation. Finally, we present real-time dispersion compensated image reconstruction for both systems.

Original languageEnglish
Title of host publicationThree-Dimensional and Multidimensional Microscopy
Subtitle of host publicationImage Acquisition and Processing XXII
EditorsThomas G. Brown, Carol J. Cogswell, Tony Wilson
PublisherSPIE
ISBN (Electronic)9781628414202
DOIs
Publication statusPublished - 2015
Externally publishedYes
EventThree-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXII - San Francisco, United States
Duration: 9 Feb 201512 Feb 2015

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume9330
ISSN (Print)1605-7422

Conference

ConferenceThree-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXII
Country/TerritoryUnited States
CitySan Francisco
Period9/02/1512/02/15

Keywords

  • Compressive sensing
  • graphics processing unit
  • image processing
  • optical coherence tomography
  • reconstruction algorithm

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