An Iterative MPEG Super-Resolution with an Outer Approximation of Framewise Quantization Constraint(Image)
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概要
- 論文の詳細を見る
In this paper, we present a novel iterative MPEG super-resolution method based on an embedded constraint version of Adaptive projected subgradient method [Yamada & Ogura 2003]. We propose an efficient operator that approximates convex projection onto a set characterizing framewise quantization, whereas a conventional method can only handle a convex projection defined for each DCT coefficient of a frame. By using the operator, the proposed method generates a sequence that efficiently approaches to a solution of super-resolution problem defined in terms of quantization error of MPEG compression.
- 社団法人電子情報通信学会の論文
- 2005-09-01
著者
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山田 勲
千葉大理
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山田 勲
Department Of Physics Faculty Of Science Chiba University
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Yamada I
Tokyo Inst. Of Technol. Tokyo Jpn
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HASEGAWA Hiroshi
Dept. of Electrical Engineering & Computer Science, Nagoya University
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YAMADA Isao
Dept. of Communications & Integrated Systems, Tokyo Institute of Technology
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SAKANIWA Kohichi
Dept. of Communications & Integrated Systems, Tokyo Institute of Technology
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ONO Toshiyuki
Dept. of Communications & Integrated Systems, Tokyo Institute of Technology
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Sakaniwa Kohichi
Tokyo Inst. Of Technol. Tokyo Jpn
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Sakaniwa Kohichi
The Dept. Of Electrical And Electronic Eng. Tokyo Institute Of Technology
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Sakaniwa Kohichi
Dept. Of Communications And Integrated Systems Tokyo Institute Of Technology
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Yamada I
Dept. Of Communications & Integrated Systems Tokyo Institute Of Technology
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Yamada I
Himeji Inst. Of Technol. Hyogo Jpn
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Hasegawa H
Dept. Of Electrical Engineering & Computer Science Nagoya University
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Ono Toshiyuki
Dept. Of Communications & Integrated Systems Tokyo Institute Of Technology
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Sakaniwa K
Dept. Of Communications & Integrated Systems Tokyo Institute Of Technology
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Yamada Isao
Dept. Communications And Integrated Systems Tokyo Institute Of Technology
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Hasegawa Hiroshi
Dept. Environ. Sci. Shiga Pref. Univ.
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