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http://dx.doi.org/10.5573/ieie.2014.51.9.129

Color Interpolation Algorithm for Pixel Resolution Modus of Image Sensor  

Kim, Bu-Gong (Department of Electronics Engineering, Korea Polytechnic University)
Kim, Moon-Cheol (Department of Electronics Engineering, Korea Polytechnic University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.9, 2014 , pp. 129-138 More about this Journal
Abstract
Various interpolations for digital imaging devices with a single image sensor have proposed. However, conventional methods did not consider the resolution modus of image sensor using periodic sampling. Therefore, the resulting images have problems such as quality degradation and color artifacts(color moire, zipper). In this paper, we propose a color interpolation algorithm for pixel resolution modus of image sensor. The proposed algorithm consisted of an initial step to compensate edge prediction effectively and refinement step using minimum directions for pixel resolution modus. To analyze a result of the proposed algorithm with conventional methods, we evaluated subjectively using images quality comparison and objectively using PSNR(Peak Signal to Noise Ratio). Experimental results showed that the proposed algorithm was more successful in eliminating the color artifacts than conventional methods judged by both objective and subjective criteria.
Keywords
Color Filter Array(CFA); Demosaicking; Interpolation; Binning; Skipping;
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Times Cited By KSCI : 2  (Citation Analysis)
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