Share Email Print

Journal of Biomedical Optics • Open Access

Four-dimensional structural and Doppler optical coherence tomography imaging on graphics processing units

Paper Abstract

The authors present the application of graphics processing unit (GPU) programming for real-time three-dimensional (3-D) Fourier domain optical coherence tomography (FdOCT) imaging with implementation of flow visualization algorithms. One of the limitations of FdOCT is data processing time, which is generally longer than data acquisition time. Utilizing additional algorithms, such as Doppler analysis, further increases computation time. The general purpose computing on GPU (GPGPU) has been used successfully for structural OCT imaging, but real-time 3-D imaging of flows has so far not been presented. We have developed software for structural and Doppler OCT processing capable of visualization of two-dimensional (2-D) data (2000 A-scans, 2048 pixels per spectrum) with an image refresh rate higher than 120 Hz. The 3-D imaging of <b<100×100</b< A-scans data is performed at a rate of about 9 volumes per second. We describe the software architecture, organization of threads, and optimization. Screen shots recorded during real-time imaging of a flow phantom and the human eye are presented.

Paper Details

Date Published: 5 October 2012
PDF: 3 pages
J. Biomed. Opt. 17(10) 100502 doi: 10.1117/1.JBO.17.10.100502
Published in: Journal of Biomedical Optics Volume 17, Issue 10
Show Author Affiliations
Marcin Sylwestrzak, Nicolaus Copernicus Univ. (Poland)
Daniel Szlag, Nicolaus Copernicus Univ. (Poland)
Maciej Szkulmowski, Nicolaus Copernicus Univ. (Poland)
Iwona M. Gorczynska, Nicolaus Copernicus Univ. (Poland)
Danuta Bukowska, Nicolaus Copernicus Univ. (Poland)
Maciej Wojtkowski, Nicolaus Copernicus Univ. (Poland)
Piotr Targowski, Nicolaus Copernicus Univ. (Poland)

© SPIE. Terms of Use
Back to Top