| アイテムタイプ |
共通アイテムタイプ(1) |
| 公開日 |
2025-02-18 |
| タイトル |
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|
タイトル |
Fast image-enlargement algorithm for the augmentation of the high-frequency component by employing a hierarchical predefined codebook |
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言語 |
en |
| その他のタイトル |
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その他のタイトル |
FAST IMAGE-ENLARGEMENT ALGORITHM FOR THE AUGMENTATION OF THE HIGH-FREQUENCY COMPONENT BY EMPLOYING A HIERARCHICAL PREDEFINED CODEBOOK |
|
言語 |
en |
| 著者 |
田向, 権
Kawano, Hideaki
Suetake, Noriaki
Cha, Byungki
Aso, Takeshi
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| 著作権関連情報 |
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権利情報 |
ICIC International Copyright (c) 2013 |
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
High-quality image enlargement is achieved by the augmentation of the high-frequency components that deteriorate as a result of image enlargement. A codebook-based method, which utilizes the relationship of the low- and high-frequency image components, is a proven method of high-quality image enlargement. However, this method requires a significant calculation time to be employed for a codebook search process, and thus is not suitable for real-time processing. In this paper, we propose a fast image-enlargement algorithm. that includes a hierarchical predefined codebook and a fast edge-patch detection rule. A hierarchical codebook search reduces the number of comparisons that need to be made in comparison with a conventional full codebook search. In addition, applying the augmentation of the high-frequency components to only the edge patches detected under the proposed rule reduces the calculation time. The experimental results show that the calculation time of the proposed method is around 180 times faster than that of the fastest existing codebook-based method. The proposed method realizes high-quality image enlargement in terms of both objective and subjective evaluations in comparison with conventional methods. |
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言語 |
en |
| 書誌情報 |
en : International Journal of Innovative Computing, Information and Control
巻 9,
号 2,
p. 903-914,
発行日 2013-05-21
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| キーワード |
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主題Scheme |
Other |
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主題 |
Image enlargement |
| キーワード |
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主題Scheme |
Other |
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主題 |
Image scaling |
| キーワード |
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主題Scheme |
Other |
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主題 |
Hierarchical codebook |
| キーワード |
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主題Scheme |
Other |
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主題 |
Edge detection |
| キーワード |
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主題Scheme |
Other |
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主題 |
Fast algorithm |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| CRID |
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識別子タイプ |
CRID |
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関連識別子 |
https://cir.nii.ac.jp/crid/1010000782075338368 |
| NCID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA12218449 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1349-4198 |
| 研究者情報 |
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|
URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/100000641_ja.html |
| 論文ID（連携） |
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|
値 |
10444484 |
| 連携ID |
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値 |
12778 |
10444484.pdf (1.6 MB)
