Open AccessSequential filtering for color image acquisition
Author(s) -
Ariel Raz,
David Mendlovic
Publication year - 2014
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.22.026878
Subject(s) - demosaicing , image quality , monochromatic color , artificial intelligence , color filter array , computer vision , computer science , color difference , color gel , bayer filter , color image , filter (signal processing) , image processing , optics , pipeline (software) , aperture (computer memory) , noise (video) , color space , image sensor , image (mathematics) , materials science , physics , layer (electronics) , composite material , acoustics , programming language , thin film transistor
We present an alternative method of color imaging. It utilizes a single standard Si-based image sensor and a clear aperture, tunable, color filter. Within this scheme, three monochromatic frames are taken; each is acquired with a single color and with a fraction of the total acquisition duration. This scheme offers several advantages compared to standard Bayer-demosaicing schemes. Among them - significantly higher resolution, flexibility in exposure durations, improved noise performance and in sum - better image quality. This paper presents both color filter design and the adjusted image pipeline. Lastly, the proposed imaging scheme and the Bayer scheme are compared in terms of MSE.