Open AccessComputational phase modulation in light field imaging
Author(s) -
Tomoya Nakamura,
Ryoichi Horisaki,
Jun Tanida
Publication year - 2013
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.21.029523
Subject(s) - projector , optics , light field , structured light 3d scanner , computer science , projection (relational algebra) , phase (matter) , spatial light modulator , phase modulation , modulation (music) , iterative reconstruction , image sensor , structured light , phase retrieval , physics , computer vision , algorithm , phase noise , fourier transform , scanner , quantum mechanics , acoustics
We propose a scheme for modulating phase computationally in light field imaging systems. In a camera system based on the scheme, light field (LF) data is obtained by array-based optics, and the data is computationally projected into a single image with arbitrary phase modulation. In a projector system based on the scheme, LF data with arbitrary phase modulation is computationally generated before optical projection, and the phase-modulated image is projected by array-based optics. We describe the system design and required conditions based on the sampling theorem. We experimentally verified the proposed scheme based on camera and projector systems. In the experiment, we demonstrated a super-resolution camera and projector with extended depth-of-field without estimating the object's shape.