Skip to main content

Real-time resampling in Fourier domain optical coherence tomography using a graphics processing unit

Van Der Jeught, S., Bradu, Adrian, Podoleanu, Adrian G.H. (2010) Real-time resampling in Fourier domain optical coherence tomography using a graphics processing unit. Journal of Biomedical Optics, 15 (3). 0-0. ISSN 1083-3668. (doi:10.1117/1.3437078) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1117/1.3437078

Abstract

Fourier domain optical coherence tomography (FD-OCT) requires either a linear-in-wavenumber spectrometer or a computationally heavy software algorithm to recalibrate the acquired optical signal from wavelength to wavenumber. The first method is sensitive to the position of the prism in the spectrometer, while the second method drastically slows down the system speed when it is implemented on a serially oriented central processing unit. We implement the full resampling process on a commercial graphics processing unit (GPU), distributing the necessary calculations to many stream processors that operate in parallel. A comparison between several recalibration methods is made in terms of performance and image quality. The GPU is also used to accelerate the fast Fourier transform (FFT) and to remove the background noise, thereby achieving full GPU-based signal processing without the need for extra resampling hardware. A display rate of 25 frames/sec is achieved for processed images (1024x1024 pixels) using a line-scan charge-coupled device (CCD) camera operating at 25.6 kHz.

Item Type: Article
DOI/Identification number: 10.1117/1.3437078
Uncontrolled keywords: Fourier domain optical coherence tomography, Graphics processing unit, Background noise, Commercial graphics, Fourier domain Optical coherence tomography, Graphics Processing Unit, Optical signals, Processed images, Recalibrations, Resampling, Software algorithms, Stream processor, Wave numbers, Fast Fourier transforms, Image quality, Program processors, Signal processing, Spectrometers, Spectrometry, Tomography, Computer graphics equipment, algorithm, computer program, Fourier analysis, instrumentation, letter, methodology, optical coherence tomography, signal processing, spectroscopy, Algorithms, Fourier Analysis, Signal Processing, Computer-Assisted, Software, Spectrum Analysis, Tomography, Optical Coherence
Subjects: Q Science > QC Physics
R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 16 Jul 2015 14:51 UTC
Last Modified: 29 May 2019 14:49 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49447 (The current URI for this page, for reference purposes)
  • Depositors only (login required):