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Kim, Jeong-Yeon
Division of General Studies
Research Interests
  • Internationalization of higher education

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Ultra-Fast Displaying Spectral Domain Optical Doppler Tomography System Using a Graphics Processing Unit

Cited 13 times inthomson ciCited 12 times inthomson ci
Title
Ultra-Fast Displaying Spectral Domain Optical Doppler Tomography System Using a Graphics Processing Unit
Author
Jeong, HyosangCho, Nam HyunJung, UnsangLee, ChanghoKim, Jeong-YeonKim, Jeehyun
Keywords
CUDA; GPU; OCT; ODT; Real-time
Issue Date
201206
Publisher
MDPI AG
Citation
SENSORS, v.12, no.6, pp.6920 - 6929
Abstract
We demonstrate an ultrafast displaying Spectral Domain Optical Doppler Tomography system using Graphics Processing Unit (GPU) computing. The calculation of FFT and the Doppler frequency shift is accelerated by the GPU. Our system can display processed OCT and ODT images simultaneously in real time at 120 fps for 1,024 pixels x 512 lateral A-scans. The computing time for the Doppler information was dependent on the size of the moving average window, but with a window size of 32 pixels the ODT computation time is only 8.3 ms, which is comparable to the data acquisition time. Also the phase noise decreases significantly with the window size. Since the performance of a real-time display for OCT/ODT is very important for clinical applications that need immediate diagnosis for screening or biopsy. Intraoperative surgery can take much benefit from the real-time display flow rate information from the technology. Moreover, the GPU is an attractive tool for clinical and commercial systems for functional OCT features as well.
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DOI
http://dx.doi.org/10.3390/s120606920
ISSN
1424-8220
Appears in Collections:
DGS_Journal Papers
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