An endoscopic optical coherence tomography (OCT) probe that can perform full circumferential scans using a circular array of six micro-electro-mechanical system (MEMS) mirrors has been developed. Inside the OCT probe, each of the six MEMS mirrors forms an independent scanning unit; circumferential OCT images are acquired by off-centre scanning and combining the image data from the individual multiple scanning units. Here, an imaging analysis and reconstruction (IAR) method is proposed to construct endoscopic OCT volumetric images from the multiple individual MEMS scanning unit. Imaging procedures of six-MEMS mirrors-based, eight-MEMS mirrors-based and twelve-MEMS mirrors-based OCT probes have been analyzed theoretically. All the data sets are in the Cartesian coordinate system and need to be transformed as fan-shaped images located in the polar coordinate system. The 3-D volume rendering is employed for visualizing the endoscopic data. Typically, this method is used into the ima...

中文翻译：

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基于多微机电系统镜的偏心扫描光学相干层析成像探头的成像分析与重建方法

已开发出一种内窥镜光学相干断层扫描（OCT）探头，该探头可以使用六个微机电系统（MEMS）镜的圆形阵列执行全周扫描。在OCT探针内部，六个MEMS反射镜中的每一个都形成一个独立的扫描单元。通过偏心扫描并组合来自各个多个扫描单元的图像数据来获取周向OCT图像。在此，提出了一种成像分析和重建（IAR）方法来从多个单独的MEMS扫描单元构造内窥镜OCT体积图像。从理论上分析了基于六个MEMS反射镜，基于八个MEMS反射镜和基于十二个MEMS反射镜的OCT探头的成像过程。所有数据集都在笛卡尔坐标系中，并且需要转换为极坐标系中的扇形图像。3-D体绘制用于可视化内窥镜数据。通常，此方法用于图像中。