JP2019198101A - インタ予測方法及びその装置 - Google Patents
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Abstract
Description
A1:(x−1,y+nPSH)
B0:(x+nPSW−1,y−1)
B1:(x+nPSW,y−1)
ここで、(x,y)は現予測ユニット1525内の最も左上に位置するピクセルの座標を示し、座標は現予測ユニット1525が属するピクチャの最も左上位置を基準に決定される。また、nPSHは現予測ユニット1525の高さを示し、nPSWは現予測ユニット1525の幅を示す。
A1’: (((x>>nMER)<<nMER)-1, y+nPSH)
B0’: (x+nPSW-1, ((y>>nMER)<<nMER)-1)
B1’: (x+nPSW, ((y>>nMER)<<nMER)-1)
ここで、nMERはMERの大きさ(幅/高さ)の対数値を示す。
distX=x%nMER
distY=y%nMER
ここで、distXは現予測ユニット1520からMERまでの水平距離を示し、 distYは現予測ユニット1520からMERまでの水平距離を示す。(x,y)は現予測ユニット1520内の最も左上に位置するピクセルの座標を示し、nMERはMERの大きさを示す。
Claims (12)
- 復号器により実行される映像復号方法であって、
並列マージレベルについての情報を含むビットストリームを受信するステップと、
現ブロックのためのマージ候補リストを構成するステップであって、前記マージ候補リストは複数の空間マージ候補を含む、ステップと、
前記マージ候補リストに基づいて前記現ブロックの動き情報を導出するステップと、
前記導出された動き情報に基づいて前記現ブロックに関する予測されたブロックを導出するステップと、
前記予測されたブロックに基づいて復元ブロックを生成するステップとを含み、
前記現ブロックは並列マージ領域に属し、前記並列マージ領域のサイズは前記並列マージレベルについての情報にしたがって決定され、
前記現ブロックは予測ユニット(PU)に対応し、前記予測ユニットは符号化ユニットから分割された複数の予測ユニットの一つであり、
前記並列マージ領域内の前記複数の予測ユニットは、前記複数の空間マージ候補を共有し、
前記複数の空間マージ候補は、前記並行マージ領域として同じサイズを有する2N×2N予測ユニットの複数の空間マージ候補と同一であり、
前記現ブロックに対する前記複数の空間マージ候補は、前記並行マージ領域の、左下隅に最も近く位置するブロック、左側に隣接するブロック、右上隅に最も近く位置するブロック、上側に隣接するブロック、及び左上隅に最も近く位置するブロックから導出される、映像復号方法。 - 前記並列マージレベルについての情報はピクチャパラメータセットに含まれる、請求項1に記載の映像復号方法。
- 前記並列マージレベルについての情報の値が0である時、前記並列マージ領域の前記サイズは、4×4である、請求項1に記載の映像復号方法。
- 前記並列マージレベルについての情報の値が0より大きい時、前記並列処理領域内に含まれる前記複数の予測ユニットのための複数の動き情報は、並列に導出できる、請求項1に記載の映像復号方法。
- 前記並列マージレベルについての情報の値が1である時、前記並列マージ領域の前記サイズは、8×8であり、
前記並列マージレベルについての情報の値が2である時、前記並列マージ領域の前記サイズは、16×16である、請求項1に記載の映像復号方法。 - 前記並列マージレベルについての情報の値が3である時、前記並列マージ領域の前記サイズは、32×32であり、
前記並列マージレベルについての情報の値が4である時、前記並列マージ領域の前記サイズは、64×64である、請求項1に記載の映像復号方法。 - 前記符号化ユニットのサイズが8×8であり、前記並列マージ領域のサイズが4×4より大きい時、前記複数の予測ユニットは、前記複数の空間マージ候補を共有する、請求項1に記載の映像復号方法。
- 並列マージレベルについての情報を含むビットストリームを受信するエントロピ復号器と、
現ブロックのためのマージ候補リストを構成し、前記マージ候補リストに基づいて前記現ブロックの動き情報を導出し、前記マージ候補リストは複数の空間マージ候補を含み、前記導出した動き情報に基づいて前記現ブロックに関する予測されたブロックを導出する予測部と、
前記予測されたブロックに基づいて復元ブロックを生成するアダー(adder)と、を備え、
前記現ブロックは並列マージ領域に属し、前記並列マージ領域のサイズは前記並列マージレベルについての情報にしたがって決定され、
前記現ブロックは予測ユニット(PU)に対応し、前記予測ユニットは符号化ユニット(CU)から分割された複数の予測ユニットの一つであり、
前記並列マージ領域内の前記複数の予測ユニットは前記複数の空間マージ候補を共有し、
前記複数の空間マージ候補は、前記並行マージ領域として同じサイズを有する2N×2N予測ユニットの複数の空間マージ候補と同一であり、
前記現ブロックに対する前記複数の空間マージ候補は、前記並行マージ領域の、左下隅に最も近く位置するブロック、左側に隣接するブロック、右上隅に最も近く位置するブロック、上側に隣接するブロック、及び左上隅に最も近く位置するブロックから導出される、映像復号装置。 - 前記並列マージレベルについての情報はピクチャパラメータセットに含まれる、請求項8に記載の装置。
- 前記並列マージレベルについての情報の値が0である時、前記並列マージ領域の前記サイズは、4×4である、請求項8に記載の装置。
- 前記並列マージレベルについての情報の値が0より大きい時、前記並列処理領域内に含まれる前記複数の予測ユニットのための複数の動き情報は、並列に導出できる、請求項8に記載の装置。
- 前記符号化ユニットのサイズが8×8であり、前記並列マージ領域のサイズが4×4より大きい時、前記複数の予測ユニットは、前記空間マージ候補を共有する、請求項8に記載の装置。
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| US201161532562P | 2011-09-09 | 2011-09-09 | |
| US61/532,562 | 2011-09-09 | ||
| US201161540543P | 2011-09-29 | 2011-09-29 | |
| US61/540,543 | 2011-09-29 | ||
| US201161557337P | 2011-11-08 | 2011-11-08 | |
| US61/557,337 | 2011-11-08 | ||
| US201161557861P | 2011-11-09 | 2011-11-09 | |
| US61/557,861 | 2011-11-09 | ||
| US201161563817P | 2011-11-27 | 2011-11-27 | |
| US61/563,817 | 2011-11-27 | ||
| US201161578832P | 2011-12-21 | 2011-12-21 | |
| US61/578,832 | 2011-12-21 | ||
| US201261583622P | 2012-01-06 | 2012-01-06 | |
| US61/583,622 | 2012-01-06 | ||
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| JP2019119980A Active JP6764507B2 (ja) | 2011-09-09 | 2019-06-27 | インタ予測方法及びその装置 |
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| WO2021085401A1 (ja) | 2019-10-31 | 2021-05-06 | 株式会社クラレ | プラスチックシンチレーションファイバ及びその製造方法 |
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| US9094689B2 (en) * | 2011-07-01 | 2015-07-28 | Google Technology Holdings LLC | Motion vector prediction design simplification |
| ES3064084T3 (en) | 2011-09-09 | 2026-04-22 | Lg Electronics Inc | Image decoding apparatus, image encoding apparatus, and apparatus for transmitting data for an image |
| US9736489B2 (en) * | 2011-09-17 | 2017-08-15 | Qualcomm Incorporated | Motion vector determination for video coding |
| JP5746792B2 (ja) * | 2011-09-23 | 2015-07-08 | ケィティ、コーポレーションKt Corporation | マージ候補ブロック誘導方法及びこのような方法を用いる装置 |
| JP2013118627A (ja) * | 2011-10-31 | 2013-06-13 | Jvc Kenwood Corp | 動画像復号装置、動画像復号方法、動画像復号プログラム、受信装置、受信方法及び受信プログラム |
| CN109996082B (zh) | 2011-11-08 | 2022-01-25 | 韩国电子通信研究院 | 用于共享候选者列表的方法和装置 |
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