Flexible A-scan rate MHz OCT: Computational downscaling by coherent averaging

机译：灵活的A扫描速率MHz OCT：通过相干平均进行计算缩减

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In order to realize fast OCT-systems with adjustable line rate, we investigate averaging of image data from an FDML based MHz-OCT-system. The line rate can be reduced in software and traded in for increased system sensitivity and image quality. We compare coherent and incoherent averaging to effectively scale down the system speed of a 3.2 MHz FDML OCT system to around 100 kHz in postprocessing. We demonstrate that coherent averaging is possible with MHz systems without special interferometer designs or digital phase stabilisation. We show OCT images of a human finger knuckle joint in vivo with very high quality and deep penetration.

机译：为了实现具有可调线速的快速OCT系统，我们研究了基于FDML的MHz-OCT系统的图像数据平均。可以在软件中降低线路速率，并以折价换取更高的系统灵敏度和图像质量。我们比较了相干和不相干的平均值，以在后期处理中将3.2 MHz FDML OCT系统的系统速度有效地降低到100 kHz左右。我们证明，在没有特殊干涉仪设计或数字相位稳定的情况下，MHz系统可以进行相干平均。我们显示了人的指关节关节的OCT图像，具有很高的质量和深层渗透力。

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《Optical Coherence tomography and coherence domain optical methods in biomedicine XX》|2016年|96970S.1-96970S.5|共5页
会议地点 San Francisco CA(US)
作者
Tom Pfeiffer; Wolfgang Wieser; Thomas Klein; Markus Petermann; Jan-Phillip Kolb; Matthias Eibl; Robert Huber;
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作者单位

Institut fuer Biomedizinische Optik, Universitaet zu Luebeck, Peter-Monnik-Weg 4, 23562 Lubeck, Germany;

Optores GmbH, Gollierstr. 70, 80339 Munich, Germany;

Optores GmbH, Gollierstr. 70, 80339 Munich, Germany;

Lehrstuhl fuer BioMolekulare Optik, Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, Oettingenstr. 67, 80538 Munich, Germany,Optores GmbH, Gollierstr. 70, 80339 Munich, Germany;

Institut fuer Biomedizinische Optik, Universitaet zu Luebeck, Peter-Monnik-Weg 4, 23562 Lubeck, Germany;

Institut fuer Biomedizinische Optik, Universitaet zu Luebeck, Peter-Monnik-Weg 4, 23562 Lubeck, Germany;

Institut fuer Biomedizinische Optik, Universitaet zu Luebeck, Peter-Monnik-Weg 4, 23562 Lubeck, Germany,Optores GmbH, Gollierstr. 70, 80339 Munich, Germany;

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关键词
Optical coherence tomography; OCT; tunable laser; Fourier domain mode locking; averaging; MHz OCT;

机译：光学相干断层扫描；华侨城;可调激光器傅立叶域模式锁定；平均兆赫OCT;

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专利

1. Implementations of three OCT angiography (OCTA) methods with 1.7 MHz A-scan rate OCT system on imaging of human retinal and choroidal vasculature [J] . Poddar Raju, Werner John S. Optics & Laser Technology . 2018,第期

机译：具有1.7MHz A扫描速率OCT系统的三八八八型血管造影（OCTA）方法的实施方法 - 人类视网膜和脉络膜脉管系统成像
2. High-resolution retinal swept source optical coherence tomography with an ultra-wideband Fourier-domain mode-locked laser at MHz A-scan rates [J] . Jan Philip Kolb, Tom Pfeiffer, Matthias Eibl, Biomedical Optics Express . 2018,第1期

机译：高分辨率视网膜扫描源光学相干断层扫描，MHz A扫描速率的超宽带傅里叶域锁模激光器
3. Spectral domain optical coherence tomography of multi-MHz A-scan rates at 1310 nm range and real-time 4D-display up to 41 volumes/second [J] . Dong-hak Choi, Hideaki Hiro-Oka, Kimiya Shimizu, Biomedical Optics Express . 2012,第12期

机译：光谱域光学相干断层扫描技术，在1310 nm范围内具有多MHz A扫描速率，并且实时4D显示速度高达每秒41卷
4. Flexible A-scan rate MHz OCT: Computational downscaling by coherent averaging [C] . Tom Pfeiffer, Wolfgang Wieser, Thomas Klein, Conference on Optical Coherence tomography and coherence domain optical methods in biomedicine XX . 2016

机译：灵活的A扫描速率MHz OCT：通过相干平均计算缩小
5. A 10-bit 100MHz analog -to -digital converter in 0.25μm CMOS using folding, interpolation and averaging techniques [D] . Carnu, Ovidiu. 2005

机译：使用折叠，插值和平均技术为0.25μm的10位100MHz模拟-Digital转换器
6. Flexible A-scan rate MHz-OCT: efficient computational downscaling by coherent averaging [O] . Tom Pfeiffer, Madita Göb, Wolfgang Draxinger, 2020

机译：灵活的A扫描速率MHz-OCT：通过相干平均值高效计算缩小
7. Flexible A-scan rate MHz OCT: Computational downscaling by coherent averaging [O] . Pfeiffer, Tom, Wieser, Wolfgang, Klein, Thomas, 2016

机译：灵活的a扫描速率mHz OCT：通过相干计算降尺度平均

Flexible A-scan rate MHz OCT: Computational downscaling by coherent averaging

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