2009 Fiscal Year Final Research Report
Development of high-speed time domain optical coherence tomography and imaging of blood vessels
| Project/Area Number |
20700375
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Biomedical engineering/Biological material science
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| Research Institution | Yamagata University |
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Principal Investigator |
WATANABE Yuuki Yamagata University, 大学院・理工学研究科, 准教授 (00333328)
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| Project Period (FY) |
2008 – 2009
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| Keywords | OCT / ラインカメラ / GPU |
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| Research Abstract |
We developed a high-speed linear detection time-domain optical coherence tomography (OCT) technique that detected a reflective grating-generated spatial optical delay in the reference arm using a line scan camera during probe-beam scanning. The image processing that involve a reference intensity removal, high pass fingering 1 D Hilbert transform and log scaling were accelerated by the GPU (graphics processing unit) with many stream processors, which realized highly parallel processing. A display rate of 94 frames per second for processed images with 500 lateral A-scans was achieved using an InGaAs line scan camera (512 pixels) operated at 47,000 lines/s. Our OCT system was successfully used to image the human finger in vivo with 93-dB sensitivity.
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Research Products
(6 results)
