JP2007525067A - 低複雑性空間スケーラブル符号化のための方法および装置 - Google Patents
低複雑性空間スケーラブル符号化のための方法および装置 Download PDFInfo
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Abstract
ビットストリームを発生する高解像度エンコーダ(348)と、を具える。
Description
これらの従来技術の欠点および不利な点は、複雑性の低い空間スケーラブル符号化のための装置および方法によって解決される。
Claims (12)
- 高解像度のビデオ・シーケンスを受信し、標準解像度のビットストリームおよび高解像度のスケーラブル・ビットストリームを供給する空間スケーラブル・ビデオ・エンコーダ(300)であって、
受信したシーケンスに応答する、標準解像度のエンコーダ(312)と、
標準解像度エンコーダ(312)に結合され、受信した高解像度シーケンスを表す信号と、受信して標準解像度にしたシーケンスを表す信号とを選択する選択器(346)と、
選択器(346)に結合され、高解像度スケーラブル・ビットストリームを供給する高解像度エンコーダ(348)と、から成る、前記空間スケーラブル・ビデオ・エンコーダ(300)。 - 標準解像度エンコーダ(312)に結合され、受信したビデオ・シーケンスに応答する標準解像度イントラ(intra)デコーダ(322)を更に具える、請求項1記載のエンコーダ。
- 高解像度エンコーダがノン‐スケーラブルである、請求項1記載のエンコーダ。
- 標準解像度エンコーダに結合される、Iピクチャの指標(indicator)とIスライスの指標のうち少なくとも1つを具える、請求項1記載のエンコーダ。
- 標準解像度エンコーダがノン‐スケーラブルである、請求項1記載のエンコーダ。
- 標準解像度エンコーダに結合されるダウンサンプラ(310)と、
標準解像度イントラ・エンコーダに結合されるアップサンプラ(330)と、を更に具える、請求項2記載のエンコーダ。 - 標準解像度エンコーダ(312)に結合される、標準解像度フレーム・ストア(314)を更に具える、請求項1記載のエンコーダ。
- 標準解像度イントラ・デコーダと選択器との間に結合される加算装置(342)を更に具える、請求項2記載のエンコーダ。
- 高解像度エンコーダに結合される高解像度フレーム・ストア(350)を更に具える、請求項1記載のエンコーダ。
- 高解像度エンコーダに結合される高解像度フレーム・ストア(350)と、
標準解像度イントラ・デコーダ(322)と高解像度フレーム・ストア(350)との間に結合される加算装置(344)と、を更に具える、請求項2記載のエンコーダ。 - 高解像度ビデオ画像を受信するステップと、
受信した画像を標準解像度にダウンサンプリングするステップと、
標準解像度画像がIピクチャとして符号化されるかどうかを表示するステップと、
標準解像度画像を符号化するステップと、
符号化標準解像度画像を符号化標準解像度ビットストリーム内に出力するステップと、
符号化された標準解像度のIピクチャを、符号化された標準解像度のビットストリームから復号化するステップと、
復号化された標準解像度のIピクチャをアップサンプリングするステップと、
復号化されてアップサンプリングされた標準解像度のIピクチャを高解像度ビデオ画像から差し引き、差分画像を形成するステップと、
Iピクチャの存在が表示されると、それに応答し、受信した高解像度ビデオ画像と差分画像とを選択するステップと、
選択した画像を高解像度で符号化するステップと、から成る、符号化された空間スケーラブル・ビデオ・データを発生する符号化方法。 - 高解像度ビデオ画像を、それがIピクチャとして表示されなければ記憶するステップと、
アップサンプリングしたIピクチャと差分画像を加算し高解像度Iピクチャを形成するステップと、
高解像度のIピクチャを記憶するステップと、
記憶した少なくとも1つの画像を検索して選択した画像を、それがIピクチャとして表示されなければ高解像度で符号化するステップと、から成る請求項11記載の符号化方法。
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US47973403P | 2003-06-19 | 2003-06-19 | |
PCT/US2004/019682 WO2004114672A1 (en) | 2003-06-19 | 2004-06-17 | Method and apparatus for low-complexity spatial scalable encoding |
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JP2007525067A true JP2007525067A (ja) | 2007-08-30 |
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JP2006517402A Pending JP2007524280A (ja) | 2003-06-19 | 2004-06-17 | 低複雑性空間スケーラブル復号化のための方法および装置 |
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EP (2) | EP1634460B1 (ja) |
JP (2) | JP2007525067A (ja) |
KR (2) | KR101047541B1 (ja) |
CN (2) | CN100505879C (ja) |
BR (2) | BRPI0411540A (ja) |
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CN100505879C (zh) | 2009-06-24 |
EP1634461A2 (en) | 2006-03-15 |
KR101047541B1 (ko) | 2011-07-08 |
WO2004114671A3 (en) | 2005-04-14 |
EP1634460A1 (en) | 2006-03-15 |
US20060146931A1 (en) | 2006-07-06 |
KR101046912B1 (ko) | 2011-07-07 |
CN100553332C (zh) | 2009-10-21 |
KR20060025554A (ko) | 2006-03-21 |
BRPI0411540A (pt) | 2006-08-01 |
BRPI0411655A (pt) | 2006-08-08 |
CN1810036A (zh) | 2006-07-26 |
CN1810035A (zh) | 2006-07-26 |
EP1634460B1 (en) | 2014-08-06 |
JP2007524280A (ja) | 2007-08-23 |
WO2004114672A1 (en) | 2004-12-29 |
KR20060024417A (ko) | 2006-03-16 |
WO2004114671A2 (en) | 2004-12-29 |
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