Frequency Domain Methods for Demosaicking of Single-Chip RGB/NIR Image Sensors

Jeong,Kil Hyun

doi:https://doi.org/10.9708/jksci.2017.22.11.025

Journal of The Korea Society of Computer and Information

Abbr : JKSCI
2017, 22(11), pp.25-30
DOI :https://doi.org/10.9708/jksci.2017.22.11.025
Publisher : The Korean Society Of Computer And Information
Research Area : Computer Science

Jeong,Kil Hyun ¹

¹ 장안대학교

ABSTRACT

In this paper, We proposed an effective demosaicking method for single chip RGB-NIR sensors to recover RGB and NIR images. As the method operates in the spatial frequency domain, the frequency domain characteristics of the sampled CFA data are investigated. Using the luminance signal in the frequency domain and the chrominance signals are processed separately with different filters. The simulated images using the real images are compared with other state-of-art methods. As a result, the proposed demosaicking method resulted an effective calculation by a single processing which the existing alternating projection method requires repeated calculation.
KEYWORDS

Color Demosaicking , Near-Infrared , CFA(Color Filter Array)
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