Abstract

We present a new technique for the correction of nonuniform rotation distortion in catheter-based optical coherence tomography (OCT), based on the statistics of speckle between A-lines using intensity-based dynamic light scattering. This technique does not rely on tissue features and can be performed on single frames of data, thereby enabling real-time image correction. We demonstrate its suitability in a gastrointestinal (GI) balloon-catheter OCT system, determining the actual rotational speed with high temporal resolution, and present corrected cross-sectional and en face views showing significant enhancement of image quality.

© 2015 Optical Society of America

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Supplementary Material (4)

NameDescription
» Visualization 1: MP4 (3603 KB)      Analysis series
» Visualization 2: AVI (6325 KB)      Cross-sectional view of NURD correction
» Visualization 3: AVI (9027 KB)      En face projection of NURD correction
» Visualization 4: AVI (6209 KB)      Cross-sectional view of NURD correction

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