Open AccessMultidimensional object acquisition by single-shot phase imaging with a coded aperture
Author(s) -
Ryoichi Horisaki,
Jun Tanida
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.009696
Subject(s) - coded aperture , phase retrieval , optics , computer science , multispectral image , single shot , computer vision , monochrome , artificial intelligence , iterative reconstruction , aperture (computer memory) , synthetic aperture radar , spectral imaging , algorithm , physics , fourier transform , acoustics , detector , quantum mechanics
We propose a generalized framework for quantitatively acquiring multidimensional complex objects based on single-shot phase imaging with a coded aperture (SPICA). In multidimensional SPICA, a propagating field from a multidimensional complex object is sieved by a coded aperture, the sieved field is modulated by an optical element, which is called coding optics, and then the resultant field is captured by a monochrome image sensor. The original complex field is reconstructed from the single captured intensity image by a phase retrieval algorithm with a support constraint of the coded aperture and a sparsity-based reconstruction algorithm based on compressive sensing. We also present theoretical conditions for the proposed method. As a demonstration, we numerically verified an application of this generalized framework for single-shot acquisition of depth-variant multispectral objects.