JP5745693B2 - 時間的な予測動きベクトル誘導方法及びこのような方法を用いる装置 - Google Patents
時間的な予測動きベクトル誘導方法及びこのような方法を用いる装置 Download PDFInfo
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Description
(mvLXCol)及びコロケーテッドブロック使用可能性情報(availableFlagLXCol)を算出する(ステップS420)。
Claims (14)
- 映像信号を復号化する方法であって、
最大の符号化単位の境界に現在ブロックの境界が接するか否かに基づいて、コロケーテッドピクチャ内のコロケーテッドブロックを決定するステップと、
コロケーテッドブロックの動きベクトルを用いて、前記現在ブロックの時間的な予測動きベクトルを得るステップと、
前記時間的な予測動きベクトルを含む動きベクトル候補リストを発生するステップと、 発生された前記動きベクトル候補リストに基づいて、前記現在ブロックの画面間予測を実行するステップと、
を備えることを特徴とする映像信号を復号化する方法。 - 前記コロケーテッドピクチャは、コロケーテッド参照インデックスに基づいて決定され、前記コロケーテッド参照インデックスは、前記コロケーテッドブロックを含むピクチャを同定することを特徴とする請求項1に記載の方法。
- 前記現在ブロック及び前記最大の符号化単位が接する前記境界は、下側境界であることを特徴とする請求項1に記載の方法。
- 前記時間的な予測動きベクトルは、前記コロケーテッドブロックの前記動きベクトルをスケーリングすることによって得られることを特徴とする請求項1に記載の方法。
- 前記現在ブロックを含む現在ピクチャと、前記現在ブロックの参照ピクチャとの間の時間的な距離に基づいて、前記コロケーテッドブロックの前記動きベクトルはスケーリングされることを特徴とする請求項4に記載の方法。
- 前記コロケーテッドピクチャと、前記コロケーテッドブロックの参照ピクチャとの間の時間的な距離に基づいて、前記コロケーテッドブロックの前記動きベクトルはスケーリングされることを特徴とする請求項4に記載の方法。
- 前記コロケーテッドブロックの前記動きベクトルは、第1の時間的な距離と第2の時間的な距離に基づいてスケーリングされ、前記第1の時間的な距離は、前記現在ブロックを含む現在ピクチャと前記現在ブロックの参照ピクチャとの間の時間的な距離であり、前記第2の時間的な距離は、前記コロケーテッドピクチャと前記コロケーテッドブロックの参照ピクチャとの間の時間的な距離であることを特徴とする請求項4に記載の方法。
- 映像信号を復号化する装置であって、
最大の符号化単位の境界に現在ブロックの境界が接するか否かに基づいて、コロケーテッドピクチャ内のコロケーテッドブロックを決定するように構成され、前記コロケーテッドブロックの動きベクトルを用いて、前記現在ブロックの時間的な予測動きベクトルを得るように構成され、前記時間的な予測動きベクトルを含む動きベクトル候補リストを発生するように構成され、発生された前記動きベクトル候補リストに基づいて、前記現在ブロックの画面間予測を実行するように構成された画面内予測ユニットを備えることを特徴とする映像信号を復号化する装置。 - 前記コロケーテッドピクチャは、コロケーテッド参照インデックスに基づいて決定され、前記コロケーテッド参照インデックスは、前記コロケーテッドブロックを含むピクチャを同定することを特徴とする請求項8に記載の装置。
- 前記現在ブロック及び前記最大の符号化単位が接する前記境界は、下側境界であることを特徴とする請求項8に記載の方法。
- 前記時間的な予測動きベクトルは、前記コロケーテッドブロックの前記動きベクトルをスケーリングすることによって得られることを特徴とする請求項8に記載の装置。
- 前記現在ブロックを含む現在ピクチャと、前記現在ブロックの参照ピクチャとの間の時間的な距離に基づいて、前記コロケーテッドブロックの前記動きベクトルはスケーリングされることを特徴とする請求項11に記載の装置。
- 前記コロケーテッドピクチャと、前記コロケーテッドブロックの参照ピクチャとの間の時間的な距離に基づいて、前記コロケーテッドブロックの前記動きベクトルはスケーリングされることを特徴とする請求項8に記載の装置。
- 前記コロケーテッドブロックの前記動きベクトルは、第1の時間的な距離と第2の時間的な距離に基づいてスケーリングされ、前記第1の時間的な距離は、前記現在ブロックを含む現在ピクチャと前記現在ブロックの参照ピクチャとの間の時間的な距離であり、前記第2の時間的な距離は、前記コロケーテッドピクチャと前記コロケーテッドブロックの参照ピクチャとの間の時間的な距離であることを特徴とする請求項8に記載の装置。
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PCT/KR2012/007174 WO2013036041A2 (ko) | 2011-09-09 | 2012-09-06 | 시간적 예측 움직임 벡터 유도 방법 및 이러한 방법을 사용하는 장치 |
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CN (19) | CN107483928B (ja) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015167372A (ja) * | 2011-09-09 | 2015-09-24 | ケィティ、コーポレーションKt Corporation | 時間的な予測動きベクトル誘導方法及びこのような方法を用いる装置 |
US10523967B2 (en) | 2011-09-09 | 2019-12-31 | Kt Corporation | Method for deriving a temporal predictive motion vector, and apparatus using the method |
US10805639B2 (en) | 2011-09-09 | 2020-10-13 | Kt Corporation | Method for deriving a temporal predictive motion vector, and apparatus using the method |
US11089333B2 (en) | 2011-09-09 | 2021-08-10 | Kt Corporation | Method for deriving a temporal predictive motion vector, and apparatus using the method |
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