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An Edge-Preserving Super-Precision for Simultaneous Enhancement of Spacial and Grayscale Resolutions
http://hdl.handle.net/2237/14995
http://hdl.handle.net/2237/149952a05a7af-ed7a-4f63-a72f-b8d9a108a692
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-06-30 | |||||
タイトル | ||||||
タイトル | An Edge-Preserving Super-Precision for Simultaneous Enhancement of Spacial and Grayscale Resolutions | |||||
言語 | en | |||||
著者 |
HASEGAWA, Hiroshi
× HASEGAWA, Hiroshi× OHTSUKA, Toshinori× YAMADA, Isao× SAKANIWA, Kohichi |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | Copyright (C) 2008 IEICE | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | super-resolution | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Huber function | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | total variation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | set-theoretic approach | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | outer approximation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | hybrid steepest descent method | |||||
抄録 | ||||||
内容記述 | In this paper, we propose a method that recovers a smooth high-resolution image from several blurred and roughly quantized low-resolution images. For compensation of the quantization effect we introduce measurements of smoothness, Huber function that is originally used for suppression of block noises in a JPEG compressed image [Schultz & Stevenson '94] and a smoothed version of total variation. With a simple operator that approximates the convex projection onto constraint set defined for each quantized image [Hasegawa et al. '05], we propose a method that minimizes these cost functions, which are smooth convex functions, over the intersection of all constraint sets, i.e. the set of all images satisfying all quantization constraints simultaneously, by using hybrid steepest descent method [Yamada & Ogura '04]. Finally in the numerical example we compare images derived by the proposed method, Projections Onto Convex Sets (POCS) based conventinal method, and generalized proposed method minimizing energy of output of Laplacian. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Institute of Electronics, Information and Communication Engineers | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連情報 | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://www.ieice.org/jpn/trans_online/index.html | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0916-8508 | |||||
書誌情報 |
en : IEICE transactions on fundamentals of electronics, communications and computer sciences 巻 E91-A, 号 2, p. 673-681, 発行日 2008-02-01 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://www.ieice.org/jpn/trans_online/index.html | |||||
識別子タイプ | URI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/14995 | |||||
識別子タイプ | HDL |