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A Color Interpolation Method for Improved Edge Sensing  

Cho, Yang-Ki (청주대학교 전자공학과)
Kim, Hi-Seok (청주대학교 전자정보공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.12C, 2006 , pp. 1216-1223 More about this Journal
Abstract
In many imaging devices, a single image sensor is used, which is covered by a color filter array to filter out the specific color components from light. Since an image acquired from this image sensors have a color components at each pixel, it is needed to be reconstructed to a perfect image. In this paper, a new color interpolation method for the imaging devices having a single image sensor is proposed. The proposed method improves a edge sensing function to obtain satisfactory results in edges of an image, md presents a new inter-channel correlation for improving interpolation performance in smooth region. We have compared our method with several exiting methods, and our experimental results have proved better interpolation performance in comparing with the other results.
Keywords
Color interpolation; Demosaicing; Color filter array; Image sensor; Edge sensing;
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1 B. K. Gunturk, J. Glotzback, Y. Altunbasak, and et al., 'Demosaicking: color filter array interpolation,' IEEE Signal Processing Magazine, Vol. 22, Iss. 1, pp. 44-54, Jan. 2005   DOI   ScienceOn
2 P. S. Tsai, T. Acharya, and A. K. Ray, 'Adaptive fuzzy color interpolation,' Journal of Electronic Imaging, Vol. 11, Iss. 3, pp. 293-305, Jul. 2002   DOI   ScienceOn
3 L. Zhang and X. Wu, 'Color Demosaicking Via Directional Linear Minimum Mean Square-Error Estimation,' IEEE Trans. Image Processing, Vol. 14, Iss. 12, pp. 2167-2178, Dec. 2005   DOI   ScienceOn
4 C. A. Laroche and M. A. Prescott, 'Apparatus and method for adaptively interpolating a full color image utilizing chrominance gradients,' U.S. Patent 5,373,322, 1994
5 S. C. Pei and I. K. Tam, 'Effective color interpolation in CCD color filter arrays using signal correlation,' IEEE Trans. Circuits and Systems for Video Tech., Vol. 13, No.6, pp. 503-513, Jun. 2003   DOI   ScienceOn
6 B. E. Bayer, 'Color imaging array,' U.S. Patent 3,971,065, 1975
7 R. Ramanath, W. E. Synder, Y. Yoo, and et al., 'Color Image Processing Pipeline,' IEEE Signal Processing Magazine, Vol. 22, Iss. 1, pp. 34-43, Jan. 2005   DOI   ScienceOn
8 D. R. Cok, 'Signal processing method and apparatus for producing interpolated chrominance values in a sampled color image signal,' U.S. Patent 4,642,678, 1987
9 J. F. Hamilton Jr. and J. E. Adams Jr., 'Adapeve color plan interpolation in single sensor color electronic camera,' U.S. Patent 5,629,734, 1997