A Reconstruction Algorithm for Multi-Spectral Image Demosaicing

Hemant K. Aggarwal, Angshul Majumdar, and Rabab Ward


Multi-Spectral Images, Demosaicing, Least-Square, PSNR, Structural-Similarity


We have proposed a method by which compact and low-cost multi-spectral cameras can be designed based on the concept of single-sensor cameras. A filter pattern have been proposed to capture intensity values from multiple bands by using single-sensor. Our approach is based on representing central pixel in a window as a linear combination of neighboring intensity values from same and other bands. The proposed method can be applied to multi-spectral images with few bands. We did comparison of our method with two existing algorithms using peak signal to noise ratio (PSNR) and structural-similarity (SSIM) and found that experimental results were better both visually as well as quantitatively.

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