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학술지 Real-Time Surface Tracking System using Common-Path Spectral Domain Optical Coherence Tomography
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저자
김거식, 박형준, 강현서, Jin U. Kang, 송철규
발행일
201211
출처
Optical Engineering, v.51 no.11, pp.1-4
ISSN
0091-3286
출판사
SPIE
DOI
https://dx.doi.org/10.1117/1.OE.51.11.113203
협약과제
12ZH1100, 산업계 기술지원사업, 김영선
초록
An enhanced surface tracking system based on optical coherence tomography (OCT) modality has been developed and tested for use in a surgical guidance system. A surface detection algorithm based on a Savitzky-Golay filter of A-scan data and thresholding was applied to realtime depth tracking. The algorithm output controlled a motorized stage to adjust the probe position according to the sample 's topological variance in real-time. As a result, the root mean square error (RMSE: 4.2 μm) of our algorithm was relatively lower than the conventional method (RMSE: 16.6 μm). Also, OCT images obtained using the algorithm showed a significantly extended imaging range and active surface tracking in real time. Consequently, the devised method demonstrated potential for use in systems for guiding surgical robots and endoscopic OCT. © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE).
키워드
Endoscopic optical coherence tomography, Optical coherence tomography, Surface tracking, Surgical guidance system
KSP 제안 키워드
A-scan, Active surface, Common path, Conventional methods, Depth tracking, Detection algorithm, Enhanced surface, OCT images, Optical Coherence Tomography(OCT), Optical instrumentation, Probe position