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A new image coding technique with low entropy using a flexible zerotree
http://hdl.handle.net/10191/6216
http://hdl.handle.net/10191/6216032569ad-e725-4871-8bdb-5b2a3eae6c2c
名前 / ファイル | ライセンス | アクション |
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1_0022.pdf (752.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-04-08 | |||||
タイトル | ||||||
タイトル | A new image coding technique with low entropy using a flexible zerotree | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A new image coding technique with low entropy using a flexible zerotree | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | image compression | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | wavelet transform | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | zerotree coding | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | entropy coding | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Joo, Sanghyun
× Joo, Sanghyun× Kikuchi, Hisakazu× Sasaki, Shigenobu× Shin, Jaeho |
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著者別名 | ||||||
識別子 | 5772 | |||||
識別子Scheme | WEKO | |||||
姓名 | 菊池, 久和 | |||||
著者別名 | ||||||
識別子 | 5773 | |||||
識別子Scheme | WEKO | |||||
姓名 | 佐々木, 重信 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A zerotree image-coding scheme is introduced that effectively exploits the inter-scale self-similarities found in the octave decomposition by a wavelet transform. A zerotree is usuful for efficiently coding wavelet coefficients ; its efficiency was proved by Shapiro's EZW. In the EZW coder, wavelet coefficients are sympolized, then entropy-coded for further compression. In this paper, we analyze the symbols produced by the EZW coder and discuss the entropy for a symbol. We modify the procedure used for symbol-stream generation to produce lower entropy. First, we modify the fixed relation between a parent and children used in the EZW coder to raise the propability that a significant parent has significant children. The modified relation is flexibly modified again based on the observation that a significant coefficient is more likely to have significant coefficients in its neighborhood. The three relations are compared in terms of the number of symbols they produce. | |||||
書誌情報 |
IEICE transactions on communications en : IEICE transactions on communications 巻 E81-B, 号 12, p. 2528-2535, 発行日 1998-12 |
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出版者 | ||||||
出版者 | The Institute of Electronics, Information and Communication Engineers | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 09168516 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10826261 | |||||
権利 | ||||||
権利情報 | copyright©1998 IEICE(許諾番号07RB0183) | |||||
著者版フラグ | ||||||
値 | publisher | |||||
異版である | ||||||
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/ |