Multi-spectral demosaicing technique for single-sensor imaging

Abstract

A generic-filter array design have been proposed to capture multi-spectral images using hypothetical single-sensor multi-spectral cameras. The design idea is based on uniform sampling of intensity values from each band irrespective of spectral properties of any particular band. A reconstruction technique have also been proposed to linearly interpolate unknown intensity values of other bands at each pixel. Proposed technique was evaluated using two multispectral image datasets where one was of Landsat satellite and another was of cooled CCD camera Apogee Alta U260. Quantitative evaluation of the proposed technique was done using peak signal to noise ratio.