Heterogeneity-Projection Hard-Decision Color Interpolation Using Spectral-Spatial Correlation

doi:10.1109/TIP.2006.884943

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 期刊論文 > Item 987654321/60914

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题名:	Heterogeneity-Projection Hard-Decision Color Interpolation Using Spectral-Spatial Correlation
作者:	Tsai, Chi-yi;Song, Kai-tai
贡献者:	淡江大學電機工程學系
关键词:	image representation;Adaptive filtering;color artifacts;color filter array (CFA) demosaicing;color reproduction;digital cameras
日期:	2007-01-01
上传时间:	2011-10-15 01:05:01 (UTC+8)
出版者:	IEEE
摘要:	This paper presents a novel heterogeneity-projection hard-decision (HPHD) color interpolation procedure for reproduction of Bayer mosaic images. The proposed algorithm aims to estimate the optimal interpolation direction and perform hard-decision interpolation, in which each pixel only needs to be interpolated once. A new heterogeneity-projection scheme based on a novel spectral-spatial correlation concept is proposed to estimate the best interpolation direction directly from the original mosaic image. Using the proposed heterogeneity-projection scheme, a hard-decision rule can be decided before performing the interpolation. The advantage of this scheme is that it provides an efficient way for decision-based algorithms to generate improved results using fewer computations. Compared with three recently reported demosaicing techniques, Gunturk's, Lu's, and Li's methods, the proposed HPHD outperforms all of them in both PSNR values and S-CIELAB DeltaEab * measures by utilizing 25 natural images from Kodak PhotoCD
關聯:	IEEE Transactions on Image Processing 16(1), pp.78-91
DOI:	10.1109/TIP.2006.884943
显示于类别:	[電機工程學系暨研究所] 期刊論文

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