用于手动扫描光学相干断层扫描的基于互相关的图像采集技术。
Cross-correlation-based image acquisition technique for manually-scanned optical coherence tomography.
作者信息
Ahmad Adeel, Adie Steven G, Chaney Eric J, Sharma Utkarsh, Boppart Stephen A
机构信息
Beckman Institute for Advanced Science and Technology, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
出版信息
Opt Express. 2009 May 11;17(10):8125-36. doi: 10.1364/oe.17.008125.
Abstract
We present a novel image acquisition technique for Optical Coherence Tomography (OCT) that enables manual lateral scanning. The technique compensates for the variability in lateral scan velocity based on feedback obtained from correlation between consecutive A-scans. Results obtained from phantom samples and biological tissues demonstrate successful assembly of OCT images from manually-scanned datasets despite non-uniform scan velocity and abrupt stops encountered during data acquisition. This technique could enable the acquisition of images during manual OCT needle-guided biopsy or catheter-based imaging, and for assembly of large field-of-view images with hand-held probes during intraoperative in vivo OCT imaging.
摘要
我们提出了一种用于光学相干断层扫描（OCT）的新型图像采集技术，该技术能够进行手动横向扫描。该技术基于从连续A扫描之间的相关性获得的反馈来补偿横向扫描速度的变化。从体模样本和生物组织获得的结果表明，尽管在数据采集过程中遇到扫描速度不均匀和突然停止的情况，但仍能从手动扫描的数据集中成功组装OCT图像。该技术可以在手动OCT针引导活检或基于导管的成像过程中采集图像，也可以在术中体内OCT成像期间使用手持探头组装大视野图像。
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