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http://dx.doi.org/10.5909/JBE.2009.14.6.742

Demosaicing Algorithm Using Directional Neighboring Pixels  

Kim, Hee-Chang (Hanyang Univ. Dept. of Electronics and Computer Engineering)
Jeong, Je-Chang (Hanyang Univ. Dept. of Electronics and Computer Engineering)
Publication Information
Journal of Broadcast Engineering / v.14, no.6, 2009 , pp. 742-748 More about this Journal
Abstract
Most commercial digital still cameras use a single sensor array (e.g., CMOS or CCD) with color filter array (CFA) to reduce the cost and size. Since the image obtained with CFA has only one color value per pixel, the demosaicing is needed to acquire missing two color values. Although many demosaicing methods have been proposed, they still have artifacts such as rainbow and zippering artifact. In this paper, we propose the simple demosaicing algorithm using tendency of neighbor pixels with the enhanced weighting function. In the experimental results, our algorithm shows much better subjective qualities of the images than conventional demosaicing algorithm and improves objective qualities.
Keywords
Demosaicing; Bayer color filter; Color interpolation; Color filter array; Weighted direction;
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1 D. R. Cok, 'Signal Processing method and apparatus for producing interpolated chrominance values in a sampled color image signal,' U.S. Patent 4642678, Feb.1987
2 N. Kehtarnavaz, H. Oh, and Y. Yoo, 'Color filter array interpolation using correlations and directional derivatives,' Journal of Electronic Imaging, vol.12, no.4, pp.621-632, Oct. 2003   DOI
3 Bahadir K. Gunturk, Yucel Altunbasak, and Russell M. Mersereau, 'Color plane interpolation using alternating projections,' IEEE Trans. Image Process., vol. 11, no. 9, pp 997-1013, Sept. 2002   DOI   ScienceOn
4 Wonjae Lee, Seongjoo Lee, and Jaeseok Kim, 'Cost-efffective color filter array demosaicing using spatial correlation,', IEEE Trans Consumer Electronics, vol.52, no. 2, pp 547-554, May 2006   DOI   ScienceOn
5 S.C. Pei and I. K. Tam, 'Effective color interpolation in CCD color filter arrays using signal correlation,' IEEE Trans.Circuits Syst. Video Technol., vol.13, no.6, pp.503-513, Jun. 2003   DOI   ScienceOn
6 D. Darian Muresan and Thomas W. Parks, 'Demosaicing using optimal recovery,' IEEE Transactions Image Processing, vol.14, no. 2, pp 267-278, Feb.2005   DOI   ScienceOn
7 J. A. Weldy, 'Otimized design for a single-sensor color electronic camera system,' in Proc. SPIE, pp.300-307, 1988
8 B. E. Bayer, 'Color imaging array,' U.S. Patent 3971065, Jul. 1976
9 Hung-An Chang and Homer Chen, 'Directionally weighted color interpolation for digital cameras,' in proc.IEEE Int. Symp. on Cir. and Syst., vol.6, pp.6284-6287 23-26 May. 2005   DOI
10 B. Eamanath, W.E. Synder, and G. L. Bilbro, 'Demosaicking methods for Bayer color array,' Journal of Electronic Imaging, vol.11, no.3, pp.306-315, Jul. 2002   DOI   ScienceOn