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Fractal Image Coding Based on Classified Range Regions
http://hdl.handle.net/2237/14996
http://hdl.handle.net/2237/149960efd8cf6-00e1-4dc4-8f93-f6eed15ce2b6
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 | Fractal Image Coding Based on Classified Range Regions | |||||
言語 | en | |||||
著者 |
OHYAMA, Hiroshi
× OHYAMA, Hiroshi× KIMOTO, Tadahiko× USUI, Shin'ichi× FUJII, Toshiaki× TANIMOTO, Masayuki |
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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) 1998 IEICE | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | fractal image coding | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | iterated function system | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | variable shape | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | block merging | |||||
抄録 | ||||||
内容記述 | A fractal image coding scheme using classified range regions is proposed. Two classes of range regions, shade and nonshade, are defined here, A shade range region is encoded by the average gray level, while a nonshade range region is encoded by IFS parameters. To obtain classified range regions, the two-stage block merging scheme is proposed. Each range region is produced by merging primitive square blocks. Shade range regions are obtained at the first stage, and from the rest of primitive blocks nonshade range regions are obtained at the second stage. Furthermore, for increasing the variety of region shape, the 8-directional block merging scheme is defined by extension of the 4-directional scheme. Also, two similar schemes for encoding region shapes, each corresponding to the 4-directional block merging scheme and the 8-directional block merging scheme, are proposed. From the results of simulation by using a test image, it was demonstrated that the variety of region shape allows large shade range regions to be extracted efficiently, and these large shade range regions are more effective in reduction of total amount of codebits with less increase of degradation of reconstructed image quality than large nonshade range regions. The 8-directional merging and coding scheme and the 4-directional scheme reveal almost the same coding performance, which is improved than that of the quad-tree partitioning scheme. Also, these two schemes achieve almost the same reconstructed image quality. | |||||
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 | 0916-8516 | |||||
書誌情報 |
en : IEICE transactions on communications 巻 E81-B, 号 12, p. 2257-2268, 発行日 1998-12-20 |
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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/2237/14996 | |||||
識別子タイプ | HDL |