Real-time correction of nonuniform rotational distortion in endoscopic OCT
Haoran Zhang,
Jianlong Yang,
Jingqian Zhang
et al.
Abstract:Endoscopic optical coherence tomography (OCT) is progressively used in endoluminal imaging because of its high scanning speed and near-cellular spatial resolution. Scanning of the endoscopic probe is implemented mechanically to achieve circumferential rotation and axial pullback. However, this scanning suffers from nonuniform rotational distortion (NURD) due to mechanical friction between the rotating probe and protecting sheath, irregular motor rotation, and so on. Correction of NURD is a prerequisite for end… Show more
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