JP2017135730A - ビデオ信号処理方法及び装置 - Google Patents
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Abstract
Description
〔先行技術文献〕
〔非特許文献〕
〔非特許文献1〕「Section 8.4, Inter prediction process」(H.264/AVC、2005年版)
Claims (5)
- デコーディング装置により符号化ビデオ信号を含むビットストリームをデコーディングする方法であって、
前記デコーディング装置により、前記ビットストリームから現在ブロックの動きベクトルの差を導出し、
前記デコーディング装置により、前記現在ブロックに使用される動きベクトル候補を示す、前記現在ブロックの動きベクトル指示情報を前記ビットストリームから取得し、
前記デコーディング装置により、空間的動きベクトルと時間的動きベクトルのうち少なくとも1つからなる複数の動きベクトル候補を含む、前記現在ブロックの動きベクトル候補セットを決定し、
前記デコーディング装置により、前記動きベクトル候補セットからの前記動きベクトル指示情報に対応する前記動きベクトル候補として、前記現在ブロックの予測された動きベクトルを決定し、
前記デコーディング装置により、前記予測された動きベクトル及び前記現在ブロックの前記動きベクトルの差を使用して前記現在ブロックに動き補償を行うことを含む、方法。 - 前記現在ブロックとして同じレファレンスインデックスを有する近隣ブロックの動きベクトルは前記空間的動きベクトルとして使用され、前記近隣ブロックは前記現在ブロックに近接する左ブロック及び上ブロックの一つである、請求項1に記載の方法。
- 前記現在ブロックとして同じレファレンスインデックスを有する近隣ブロックが存在しない場合、前記近隣ブロックの動きベクトルは、前記現在ブロックのピクチャ番号と前記近隣ブロックのピクチャ番号との差に基づいてスケールされる、請求項1に記載の方法。
- 前記時間的動きベクトルは、前記現在ブロックを含む現在ピクチャ以外のピクチャの前記現在ブロックと同一の位置のブロックの動きベクトルである、請求項1に記載の方法。
- ビットストリームから現在ブロックの動きベクトルの差を導出し、前記現在ブロックに使用される動きベクトル候補を示す前記現在ブロックの動きベクトル指示情報を前記ビットストリームから取得するように構成されたエントロピーデコーディング部と、
空間的動きベクトルと時間的動きベクトルのうち少なくとも1つからなる複数の動きベクトル候補を含む、前記現在ブロックの動きベクトル候補セットを決定するように構成され、前記動きベクトル候補セットからの前記動きベクトル指示情報に対応する前記動きベクトル候補として、前記現在ブロックの予測された動きベクトルを決定するように構成され、前記予測された動きベクトル及び前記現在ブロックの前記動きベクトルの差を使用して前記現在ブロックに動き補償を行うように構成されたインター予測部と、を備えた符号化ビデオ信号を含むビットストリームのデコーディング装置。
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US98043507P | 2007-10-16 | 2007-10-16 | |
US98043407P | 2007-10-16 | 2007-10-16 | |
US98043207P | 2007-10-16 | 2007-10-16 | |
US60/980,435 | 2007-10-16 | ||
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US1680807P | 2007-12-27 | 2007-12-27 | |
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JP2012200528A Active JP5638580B2 (ja) | 2007-10-16 | 2012-09-12 | ビデオ信号処理方法及び装置 |
JP2014214584A Active JP6109803B2 (ja) | 2007-10-16 | 2014-10-21 | ビデオ信号処理方法及び装置 |
JP2017041905A Active JP6411565B2 (ja) | 2007-10-16 | 2017-03-06 | ビデオ信号処理方法及び装置 |
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EP (2) | EP2621172A3 (ja) |
JP (5) | JP2011501555A (ja) |
KR (8) | KR102139535B1 (ja) |
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