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Rotational distortion correction in endoscopic optical coherence tomography based on speckle decorrelation

机译:基于散斑去相关的内窥镜光学相干断层扫描中的旋转畸变校正

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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. (C) 2015 Optical Society of America
机译:我们基于基于强度的动态光散射,基于A线之间的斑点统计数据,提出了一种新技术,用于校正基于导管的光学相干断层扫描(OCT)中非均匀旋转畸变。该技术不依赖于组织特征,并且可以在单帧数据上执行,从而实现实时图像校正。我们证明了其在胃肠道(GI)球囊导管OCT系统中的适用性,确定了具有高时间分辨率的实际转速,并提出了校正后的横截面和正面视图,这些图像显着提高了图像质量。 (C)2015年美国眼镜学会

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