Structured light field 3D imaging

In this paper, we propose a method by means of light field imaging under structured illumination to deal with high dynamic range 3D imaging. Fringe patterns are projected onto a scene and modulated by the scene depth then a structured light field is detected using light field recording devices. The...

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Published in:Optics express 2016-09, Vol.24 (18), p.20324-20334
Main Authors: Cai, Zewei, Liu, Xiaoli, Peng, Xiang, Yin, Yongkai, Li, Ameng, Wu, Jiachen, Gao, Bruce Z
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Language:English
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cited_by cdi_FETCH-LOGICAL-c372t-7b90ad76ac739f2159ffcb43e7cef837864e7ce746ac574eaeda6a0dab026173
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container_end_page 20334
container_issue 18
container_start_page 20324
container_title Optics express
container_volume 24
creator Cai, Zewei
Liu, Xiaoli
Peng, Xiang
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Li, Ameng
Wu, Jiachen
Gao, Bruce Z
description In this paper, we propose a method by means of light field imaging under structured illumination to deal with high dynamic range 3D imaging. Fringe patterns are projected onto a scene and modulated by the scene depth then a structured light field is detected using light field recording devices. The structured light field contains information about ray direction and phase-encoded depth, via which the scene depth can be estimated from different directions. The multidirectional depth estimation can achieve high dynamic 3D imaging effectively. We analyzed and derived the phase-depth mapping in the structured light field and then proposed a flexible ray-based calibration approach to determine the independent mapping coefficients for each ray. Experimental results demonstrated the validity of the proposed method to perform high-quality 3D imaging for highly and lowly reflective surfaces.
doi_str_mv 10.1364/OE.24.020324
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