Open AccessSnapshot multispectral polarization imaging using a photonic crystal filter array
Author(s) -
Kazuma Shinoda,
Yasuo Ohtera,
Madoka Hasegawa
Publication year - 2018
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.26.015948
Subject(s) - multispectral image , optics , rgb color model , polarization (electrochemistry) , snapshot (computer storage) , liquid crystal tunable filter , materials science , pixel , polarizing filter , color filter array , optical filter , computer science , artificial intelligence , physics , color gel , liquid crystal , chemistry , thin film transistor , layer (electronics) , composite material , operating system
A new filter array and a demosaicking method for snapshot multispectral polarization imaging are proposed in this paper. The proposed filter array is a thin-film wavy multilayer structure regarded as a photonic crystal that can be fabricated using the autocloning method. The multispectral polarization filter array is developed by altering the wave structure of the photonic crystal at each pixel. In addition, we propose a demosaicking method for multispectral polarization images by considering snapshot imaging as a linear model. In the experiments, we evaluated the recovered spectrum error in some color charts and showed various demosaicked images such as multispectral polarization images, specific-band degree of linear polarization images, polarized RGB images, and non-polarized RGB images.