JP6055043B2 - 復号方法および符号化方法 - Google Patents
復号方法および符号化方法 Download PDFInfo
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Description
本発明のいくつかの実施の形態においては、エントロピースライスのエントロピー復号は、複数のコンテキストモデルを初期化すること、および、該エントロピースライスのエントロピー復号を行っている間に該複数のコンテキストモデルのアップデートすること、を含んでいる。
本発明のいくつかの実施の形態には、スライスデータを、独立にエントロピー符号化および復号される複数のエントロピースライスに分割することによって、動画像ビットストリームを並列的にエントロピー符号化及び復号するための方法、装置、および、システムが含まれる。
Claims (2)
- 復号装置を用いた、動画像シーケンスの画像の復号方法であって、
ビットストリームを受信するステップと、
上記ビットストリームにおける上記画像の領域を示す再構成スライスを識別するステップと、
上記ビットストリームにおける、2つの分割されたスライスのヘッダのフラグを解析するステップと、
上記ヘッダにおける上記フラグに基づいて、上記再構成スライスの第1の分割されたスライスとして、上記2つの分割されたスライスの一方を識別し、かつ、上記再構成スライスの第2の分割されたスライスとして、上記2つの分割されたスライスの他方を識別するステップと
第1の復号データを生成するために上記第1の分割されたスライスをエントロピー復号するステップと、
第2の復号データを生成するために上記第2の分割されたスライスをエントロピー復号するステップとを含み、
上記第1の分割されたスライスのエントロピー復号は、上記再構成スライスにおける他の何れの分割されたスライスにも依存せず、
さらに、上記方法は、
上記再構成スライスによって示される上記画像の上記領域を、上記第1の復号データおよび上記第2の復号データを用いて再構成するステップを含み、
上記フラグが0のとき、上記分割されたスライスの上記ヘッダは第1の分割されたスライスのヘッダであり、
上記フラグが1のとき、上記分割されたスライスの上記ヘッダは第2の分割されたスライスのヘッダであり、
上記第2の分割されたスライスのヘッダは、上記第1の分割されたスライスのヘッダのスライス特性を共有している
ことを特徴とする方法。 - 符号化装置を用いた、動画像シーケンスの画像の符号化方法であって、
第1のエントロピー符号化データを生成するために、第1の分割されたスライスをエントロピー符号化するステップと、
第2のエントロピー符号化データを生成するために、第2の分割されたスライスをエントロピー符号化するステップとを含み、
上記画像の領域を示す再構成スライスが上記第1の分割されたスライスおよび上記第2の分割されたスライスを含んでおり
さらに、上記方法は、
上記第1の分割されたスライスのために、第1の分割されたスライスのヘッダを符号化するステップと、
上記第2の分割されたスライスのために、第2の分割されたスライスのヘッダを符号化するステップとを含み、
上記第1の分割されたスライスのヘッダおよび上記第2の分割されたスライスのヘッダの両方は、対応する分割されたスライスが上記第1の分割されたスライスであるか、あるいは、上記第2の分割されたスライスであるかを示すフラグを含んでおり、
上記第2の分割されたスライスのヘッダは、上記第1の分割されたスライスのヘッダのスライス特性を共有しており、
さらに、上記方法は、
上記第1の分割されたスライス、上記第2の分割されたスライス、上記第1の分割されたスライスのヘッダ、および上記第2の分割されたスライスのヘッダを含んでいる上記再構成スライスを含むビットストリームを送信するステップを含むことを特徴とする方法。
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US12/058,301 US8542748B2 (en) | 2008-03-28 | 2008-03-28 | Methods and systems for parallel video encoding and decoding |
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JP2010537070A Active JP5075988B2 (ja) | 2008-03-28 | 2009-03-25 | 動画像の並列的な符号化および復号のための方法、装置、および、システム |
JP2012187048A Active JP5529937B2 (ja) | 2008-03-28 | 2012-08-27 | 復号方法 |
JP2014085842A Active JP5786061B2 (ja) | 2008-03-28 | 2014-04-17 | 復号方法 |
JP2015147980A Active JP6068575B2 (ja) | 2008-03-28 | 2015-07-27 | 復号方法 |
JP2015147981A Active JP6055043B2 (ja) | 2008-03-28 | 2015-07-27 | 復号方法および符号化方法 |
JP2016234119A Active JP6267778B2 (ja) | 2008-03-28 | 2016-12-01 | 装置 |
JP2017246831A Active JP6556818B2 (ja) | 2008-03-28 | 2017-12-22 | 装置 |
JP2019128039A Active JP6810204B2 (ja) | 2008-03-28 | 2019-07-10 | 符号化方法および復号方法 |
JP2020205166A Active JP7096319B2 (ja) | 2008-03-28 | 2020-12-10 | 復号方法 |
JP2022100954A Active JP7348356B2 (ja) | 2008-03-28 | 2022-06-23 | 装置 |
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JP2012187048A Active JP5529937B2 (ja) | 2008-03-28 | 2012-08-27 | 復号方法 |
JP2014085842A Active JP5786061B2 (ja) | 2008-03-28 | 2014-04-17 | 復号方法 |
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JP2019128039A Active JP6810204B2 (ja) | 2008-03-28 | 2019-07-10 | 符号化方法および復号方法 |
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JP2022100954A Active JP7348356B2 (ja) | 2008-03-28 | 2022-06-23 | 装置 |
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EP (4) | EP2266319A4 (ja) |
JP (11) | JP5075988B2 (ja) |
CN (2) | CN104270645B (ja) |
BR (4) | BR122020000341B1 (ja) |
CY (1) | CY1123585T1 (ja) |
DK (1) | DK3086557T3 (ja) |
ES (1) | ES2830394T3 (ja) |
HK (1) | HK1206179A1 (ja) |
HR (1) | HRP20201803T1 (ja) |
HU (1) | HUE051657T2 (ja) |
LT (1) | LT3086557T (ja) |
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CN101803388B (zh) * | 2008-05-23 | 2012-11-21 | 松下电器产业株式会社 | 图像解码装置、图像解码方法、图像编码装置、以及图像编码方法 |
JP5050158B2 (ja) * | 2008-06-02 | 2012-10-17 | 株式会社メガチップス | トランスコーダ |
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JP5341104B2 (ja) * | 2008-12-08 | 2013-11-13 | パナソニック株式会社 | 画像復号化装置および画像復号化方法 |
JP2010141821A (ja) * | 2008-12-15 | 2010-06-24 | Toshiba Corp | ストリーミングプロセッサおよびプロセッサシステム |
EP2312854A1 (de) * | 2009-10-15 | 2011-04-20 | Siemens Aktiengesellschaft | Verfahren zur Codierung von Symbolen aus einer Folge digitalisierter Bilder |
CN102754437B (zh) * | 2009-10-29 | 2015-03-18 | 松下电器(美国)知识产权公司 | 图像编码方法、图像编码装置及集成电路 |
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