Proposed Algorithm Overview
A one-shot multispectral imaging system using a multispectral filter array (MSFA) provides a practical solution for compact, low-cost, and real-time multispectral imaging. However, multispectral demosaicking is a challenging problem because each spectral band is significantly undersampled in the MSFA. In this paper, we propose a novel demosaicking algorithm for the MSFA proposed in [1, 2]. Main contributions of this paper are (i) we utilize multispectral correlations for generating a guide image, which is effectively used for interpolation preserving image structures, and (ii) we effectively use residual interpolation (RI)  for generating the guide image and interpolating each spectral band. Experimental results demonstrate that our proposed algorithm significantly outperforms existing state-of-the-art algorithms.
- Multispectral Demosaicking with Novel Guide Image Generation and Residual Interpolation
Yusuke Monno, Daisuke Kiku, Sunao Kikuchi, Masayuki Tanaka and Masatoshi Okutomi
IEEE International Conference on Image Processing (ICIP2014), pp.645-649, October, 2014.[PDF,Poster]
Dataset and Code