Towards automatic calibration of Fourier-Domain OCT for robot-assisted vitreoretinal surgery

被引：39

作者：

Liu, Xuan ^{[1
]}

Balicki, Marcin ^{[2
]}

Taylor, Russell H. ^{[2
]}

Kang, Jin U. ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Elect & Comp Engn, Baltimore, MD 21211 USA

[2] Johns Hopkins Univ, Dept Comp Sci, Baltimore, MD 21211 USA

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 23期

基金：

美国国家卫生研究院;

关键词：

OPTICAL COHERENCE TOMOGRAPHY; TO-NOISE RATIO; SWEPT-SOURCE; HIGH-SPEED; ULTRAHIGH-RESOLUTION;

D O I：

10.1364/OE.18.024331

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a new real-time automatic spectral calibration (ASC) method for Fourier domain optical coherence tomography (FD OCT) that can be automatically performed by the system. The ASC method proposed can be performed during OCT scanning operation and does not require an external calibrating light source or a commercial optical spectrum analyzer. Spectral data used for calibration can be interferograms obtained from an arbitrary sample which may have complicated internal structures, such as ones found in biological tissue. Moreover, our ASC method incorporates known robot motion to calibrate physical pixel spacing of the A-scan in static or dynamic environments. Experimental results show that our ASC method can provide high-performance calibration for FD OCT in terms of axial resolution and ranging accuracy without increasing hardware complexity. (C) 2010 Optical Society of America

引用

页码：24331 / 24343

页数：13

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