Open AccessStructured light field 3D imaging
Author(s) -
Zewei Cai,
Xiaoli Liu,
Xiang Peng,
Yilong Yin,
Ameng Li,
Jiachen Wu,
Bruce Z. Gao
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.020324
Subject(s) - structured light , light field , optics , depth of field , computer science , calibration , high dynamic range , phase retrieval , field (mathematics) , phase (matter) , integral imaging , high dynamic range imaging , structured light 3d scanner , computer vision , artificial intelligence , dynamic range , physics , image (mathematics) , fourier transform , mathematics , scanner , quantum mechanics , pure mathematics
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.