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Multimode-fiber/scattering-medium computational optical endoscopic imaging based on digital wavefront modulation
Ren, Liyong1; Zhuang, Bin1,2; Zhao, Guangzhi1,2; Xu, Chengfang1,2; Geng, Yi1,2; Chen, Hui1,2; He, Zhengquan1; Hu, Baowen1; Li, Yulin1
2018
会议名称10th International Conference on Information Optics and Photonics
会议录名称Tenth International Conference on Information Optics and Photonics
卷号10964
会议日期2018-07-08
会议地点Beijing, China
出版者SPIE
产权排序1
摘要Light wave becomes extremely distorted when it passes through a turbid medium. Indeed, the inhomogeneity of scattering medium and the mode dispersion of multimode optical fiber (MMF) always distort the propagation of light waves since they divert the propagation direction and disorder the spatial relationship of rays from the object. This becomes a big challenge for the applications of biological tissues endoscopic imaging. To overcome this problem, many methods based on computational optical imaging schemes have been reported and such a research has become a hot topic in recent years. These methods include the computational ghost imaging, the digital phase conjugation, the speckle correlation, the wavefront shaping, and the optical transmission matrix, etc. In this paper, we report our recent works on computational optical imaging based on digital wavefront modulation, which might be useful for the applications of endoscopy. On one hand, we propose a round-trip imaging method based on the optical transmission matrix of scattering medium, where the light wave is distorted twice. The object is recovered directly from the distorted output wave, while no scanning is required during the imaging process; one the other hand, by modulating the amplitude instead of the phase of the incident light wavefront, we propose a high-speed binary amplitude-only modulation method to focus and scan light through an MMF based on the digital micro-mirror device (DMD). This method can also be extended to focus and scan light at multiple planes along the axial direction by just modifying the input wavefront accordingly. © 2018 SPIE.
作者部门信息光子学研究室
DOI10.1117/12.2504224
收录类别EI
ISBN号9781510625792
语种英语
ISSN号0277786X;1996763X
EI入藏号20190206347243
引用统计
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/31141
专题信息光子学研究室
作者单位1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式
GB/T 7714
Ren, Liyong,Zhuang, Bin,Zhao, Guangzhi,et al. Multimode-fiber/scattering-medium computational optical endoscopic imaging based on digital wavefront modulation[C]:SPIE,2018.
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