Color Demosaicing Using Asymmetric Directional Interpolation and Hue Vector Smoothing
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概要
- 論文の詳細を見る
This paper presents a color demosaicing method applied to the Bayer pattern color filter array (CFA). Reliable estimation of an edge direction, edge-directed asymmetric interpolation, and the use of color samples at immediate neighbors are considered as the key guidelines for smooth and sharp image restoration. Also, special interest is directed to local areas that are rich in high spatial frequency variations. For suppression of false colors likely to occur in those areas, a hue vector representation is introduced so that the spatial correlation between different color components may be exploited in consistent with the local constant-hue principle. Smoothing is repeated in the hue vector field a few times. Experimental results have shown preferable performances in terms of PSNR, CIELAB color difference, hue angle difference, CIE chromaticity and visual appearance, in particular resulting in less false colors.
- （社）電子情報通信学会の論文
- 2008-04-01
著者
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KIKUCHI Hisakazu
Department of Electrical and Electronic Engineering, Niigata University
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MURAMATSU Shogo
Department of Electrical and Electronic Engineering, Niigata University
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TAKAHASHI Yoshihisa
Department of Pathology, Teikyo University School of Medicine
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Takahashi Yoshihisa
Department Of Electrical And Electronic Engineering Niigata University
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Takahashi Yoshihisa
Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute
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Muramatsu S
Department Of Electrical And Electronic Engineering Niigata University
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Muramatsu Shogo
Niigata Univ. Niigata Jpn
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HIRAKI Kentaro
Oki Data Corporation
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Kikuchi Hisakazu
Niigata Univ. Niigata Jpn
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Kikuchi Hisakazu
Dept. Of Electrical And Electronic Eng. Niigata University
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Kikuchi Hisakazu
Department Of Electrical And Electronic Engineering Graduate School Of Science And Technology
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Muramatsu Shogo
Department Of Electrical And Electronic Engineering Niigata University
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Muramatsu Shogo
Dept. Of Electrical And Electronic Eng. Niigata University
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