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Research on high-resolution imaging technology based on light field manipulation for a lenslet-based plenoptic camera
Liu, Xincheng1,2,3; Ma, Haotong1,2; Ren, Ge1,2; Qi, Bo1,2; Xie, Zongliang1,2,3; Chu, Junqiu1,2,3; Bai, Junjie1,2,3
Source PublicationAPPLIED OPTICS
Volume57Issue:33Pages:9877-9886
2018-11-20
Language英语
ISSN1559-128X
DOI10.1364/AO.57.009877
Indexed BySCI ; Ei
WOS IDWOS:000450620700022
EI Accession Number20184806161774
SubtypeJ
AbstractIn this paper, an aberration correction method for an extended target is proposed to solve the problem of the lenslet-based plenoptic camera not imaging clearly under the influence of aberrations. We propose a light field manipulation method to improve performance of the light field imaging system. The principle of this method is that the sub-aperture images extracted from the raw light field image are offset when the light field imaging system is affected by aberrations, and the symmetrical arrangement of the sub-aperture image array is destroyed. By repairing the symmetrical arrangement of the sub-aperture image array, the influence of phase aberrations on the imaging system can be eliminated, and the resolution of the plenoptic camera can be improved. We use an image correlation algorithm to process the sub-aperture images of the plenoptic camera, calculate and compensate each sub-aperture image's displacement caused by aberrations, and restore the symmetrical arrangement of the sub-aperture image array; then, a corrected high-resolution refocused image can be generated. In particular, this method uses only the raw light field information obtained by the plenoptic camera in a single exposure, without adding other hardware devices. Furthermore, it takes the extended target itself as the reference image, so the ideal position need not be calibrated in advance. Also, the parallax information of the sub-aperture images is retained, and the method is simple and easy to use. Numerical simulation and experimental results show that the technology proposed in this paper can work well for high-resolution imaging of a plenoptic camera with phase aberrations. This method can be potentially applied to analyze lens aberration, media-induced image distortion such as water turbulence in underwater imaging, and atmospheric turbulence in remote imaging. It may have important application prospects in the fields of astronomical object detection, remote sensing, etc. (C) 2018 Optical Society of America
KeywordAtmospheric turbulence Cameras Geometrical optics Image enhancement Image resolution Imaging systems Object detection Remote sensing Underwater imaging
EI KeywordsAtmospheric turbulence ; Cameras ; Geometrical optics ; Image enhancement ; Image resolution ; Imaging systems ; Object detection ; Remote sensing ; Underwater imaging
EI Classification Number443.1 Atmospheric Properties ; 723.2 Data Processing and Image Processing ; 741.1 Light/Optics ; 742.2 Photographic Equipment ; 746 Imaging Techniques
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Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/9258
Collection光电工程总体研究室(一室)
Affiliation1.Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu; 610209, China;
2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
3.University of Chinese Academy of Sciences, Beijing; 100039, China
Recommended Citation
GB/T 7714
Liu, Xincheng,Ma, Haotong,Ren, Ge,et al. Research on high-resolution imaging technology based on light field manipulation for a lenslet-based plenoptic camera[J]. APPLIED OPTICS,2018,57(33):9877-9886.
APA Liu, Xincheng.,Ma, Haotong.,Ren, Ge.,Qi, Bo.,Xie, Zongliang.,...&Bai, Junjie.(2018).Research on high-resolution imaging technology based on light field manipulation for a lenslet-based plenoptic camera.APPLIED OPTICS,57(33),9877-9886.
MLA Liu, Xincheng,et al."Research on high-resolution imaging technology based on light field manipulation for a lenslet-based plenoptic camera".APPLIED OPTICS 57.33(2018):9877-9886.
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