JP7282872B2 - ヒストリベースの動きベクトルに基づくインター予測方法及びその装置 - Google Patents
ヒストリベースの動きベクトルに基づくインター予測方法及びその装置 Download PDFInfo
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- H04N19/103—Selection of coding mode or of prediction mode
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- H04N19/174—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
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- H04N19/51—Motion estimation or motion compensation
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Description
Claims (3)
- デコーディング装置により実行される映像デコーディング方法において、
現在ブロックに対するHMVP(history-based motion vector prediction)バッファを導出するステップと、
前記現在ブロックに対するマージ候補リストを構成するためのマージ候補を導出するステップであって、前記マージ候補は空間的候補ブロック(spacial candidate blocks)に基づいて導出された空間的候補と時間的候補ブロック(temporal candidate blocks)に基づいて導出された時間的候補とを含み、前記HMVPバッファに含まれるHMVP候補は前記マージ候補リストのマージ候補として挿入され、前記HMVP候補は前記マージ候補リストにおいて前記時間的候補の後に挿入される、ステップと、
前記マージ候補リストの中の前記HMVP候補に基づいて前記現在ブロックの動き情報を導出するステップと、
前記動き情報に基づいて前記現在ブロックに対する予測サンプルを生成するステップと、
前記予測サンプルに基づいて復元サンプルを生成するステップとを含み、
前記マージ候補リストに含まれる前記マージ候補の中の前記HMVP候補は、ビットストリームから取得されたマージインデックスに基づいて示され、
前記現在ブロックは、コーディングトリーユニット(CTU)から分離されるコーディングユニット(CU)と関連し、
現在ピクチャに含まれるスライスは1つ以上のCTU行を含み、
前記HMVPバッファは、前記スライスのCTU行毎の1番目のCTUで初期化される、映像デコーディング方法。 - エンコーディング装置により実行される映像エンコーディング方法において、
現在ブロックに対するHMVP(history-based motion vector prediction)バッファを導出するステップと、
前記現在ブロックに対するマージ候補リストを構成するためのマージ候補を導出するステップであって、前記マージ候補は空間的候補ブロック(spacial candidate blocks)に基づいて導出された空間的候補と時間的候補ブロック(temporal candidate blocks)に基づいて導出された時間的候補とを含み、前記HMVPバッファに含まれるHMVP候補は前記マージ候補リストのマージ候補として挿入され、前記HMVP候補は前記マージ候補リストにおいて前記時間的候補の後に挿入される、ステップと、
前記マージ候補リストの前記HMVP候補に基づいて前記現在ブロックの動き情報を導出するステップと、
前記動き情報に基づいて前記現在ブロックに対する予測サンプルを生成するステップと、
前記予測サンプルに基づいてレジデュアルサンプルを導出するステップと、
前記レジデュアルサンプルについての情報を含む映像情報をエンコーディングするステップとを含み、
前記映像情報は、前記マージ候補リストに含まれる前記マージ候補の中の前記HMVP候補を示すマージインデックスを含み、
前記現在ブロックは、コーディングトリーユニット(CTU)から分離されるコーディングユニット(CU)と関連し、
現在ピクチャに含まれるスライスは1つ以上のCTU行を含み、
前記HMVPバッファは、前記スライスのCTU行毎の1番目のCTUで初期化される、映像エンコーディング方法。 - 映像に対するデータの送信方法であって、
ビットストリームを取得するステップであって、前記ビットストリームは、現在ブロックに対するHMVP(history-based motion vector prediction)バッファを導出し、前記現在ブロックに対するマージ候補リストを構成するためのマージ候補を導出し、前記マージ候補は空間的候補ブロック(spacial candidate blocks)に基づいて導出された空間的候補と時間的候補ブロック(temporal candidate blocks)に基づいて導出された時間的候補とを含み、前記HMVPバッファに含まれるHMVP候補は前記マージ候補リストのマージ候補として挿入され、前記HMVP候補は前記マージ候補リストにおいて前記時間的候補の後に挿入され、前記マージ候補リストの前記HMVP候補に基づいて前記現在ブロックの動き情報を導出し、前記動き情報に基づいて前記現在ブロックに対する予測サンプルを生成し、前記予測サンプルに基づいてレジデュアルサンプルを導出し、前記レジデュアルサンプルについての情報を含む映像情報をエンコーディングすることにより前記ビットストリームを生成することを実行して生成される、ステップと、
前記ビットストリームを含む前記データを送信するステップとを含み、
前記映像情報は、前記マージ候補リストに含まれる前記マージ候補の中の前記HMVP候補を示すマージインデックスを含み、
前記現在ブロックは、コーディングトリーユニット(CTU)から分離されるコーディングユニット(CU)と関連し、
現在ピクチャに含まれるスライスは1つ以上のCTU行を含み、
前記HMVPバッファは、前記スライスのCTU行毎の1番目のCTUで初期化される、送信方法。
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KR10-2018-0094609 | 2018-08-13 | ||
KR20180094609 | 2018-08-13 | ||
PCT/KR2019/010312 WO2020036417A1 (ko) | 2018-08-13 | 2019-08-13 | 히스토리 기반 움직임 벡터에 기반한 인터 예측 방법 및 그 장치 |
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KR (2) | KR20230085219A (ja) |
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CN116800982A (zh) | 2023-09-22 |
US11895315B2 (en) | 2024-02-06 |
CN116781930A (zh) | 2023-09-19 |
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