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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Fractal Image Coding Based on Classified Range Regions

http://hdl.handle.net/2237/14996
http://hdl.handle.net/2237/14996
0efd8cf6-00e1-4dc4-8f93-f6eed15ce2b6
名前 / ファイル ライセンス アクション
469.pdf 469.pdf (2.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
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

WEKO 41238

en OHYAMA, Hiroshi

Search repository
KIMOTO, Tadahiko

× KIMOTO, Tadahiko

WEKO 41239

en KIMOTO, Tadahiko

Search repository
USUI, Shin'ichi

× USUI, Shin'ichi

WEKO 41240

en USUI, Shin'ichi

Search repository
FUJII, Toshiaki

× FUJII, Toshiaki

WEKO 41241

en FUJII, Toshiaki

Search repository
TANIMOTO, Masayuki

× TANIMOTO, Masayuki

WEKO 41242

en TANIMOTO, Masayuki

Search repository
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
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
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