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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
Conference Name10th International Conference on Information Optics and Photonics
Source PublicationTenth International Conference on Information Optics and Photonics
Volume10964
Conference Date2018-07-08
Conference PlaceBeijing, China
PublisherSPIE
Contribution Rank1
AbstractLight 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.
Department信息光子学研究室
DOI10.1117/12.2504224
Indexed ByEI
ISBN9781510625792
Language英语
ISSN0277786X;1996763X
EI Accession Number20190206347243
Citation statistics
Document Type会议论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31141
Collection信息光子学研究室
Affiliation1.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
Recommended Citation
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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