Freehand OCT with real-time lateral motion tracking

Xuan Liu, Yong Huang, Peter Gehlbach, Jin U. Kang

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Freehand optical coherence tomography (OCT) systems without mechanical scanners can offer greater freedom to access and image sites of interest. However, the scanning velocity during freehand scan is irregular; therefore pseudo B-scan images obtained by stacking sequentially acquired A-scans have a non-uniform spatial sampling rate in the lateral dimension. In this study, we developed a speckle decorrelation method to estimate lateral displacement between sequentially acquired A-scans and used the information extracted from speckle analysis to correct the time-varying lateral scanning speed. We applied this method to a handheld OCT probe and performed calibration experiments to validate our model. Furthermore we demonstrated distortion-free, freehand OCT imaging of various samples including human tissue, in vivo.

源语言英语
主期刊名Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII
DOI
出版状态已出版 - 2013
已对外发布
活动Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII - San Francisco, CA, 美国
期限: 4 2月 20136 2月 2013

出版系列

姓名Progress in Biomedical Optics and Imaging - Proceedings of SPIE
8571
ISSN(印刷版)1605-7422

会议

会议Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVII
国家/地区美国
San Francisco, CA
时期4/02/136/02/13

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