JP2016036162A - 参照ユニット決定方法及び装置 - Google Patents
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- H04N19/103—Selection of coding mode or of prediction mode
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- H04N19/172—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 picture, frame or field
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Abstract
Description
Claims (5)
- 再構成された隣接ユニットの中から候補ユニットを選択するステップ;
前記選択された候補ユニットに基づいて復号化対象ユニットのインター予測に関連する候補集合(candidate set)を生成するステップ;及び、
前記生成された候補集合と、符号化パラメータ識別子とに基づいて前記復号化対象ユニットのインター予測を実行するステップであって、前記符号化パラメータ識別子は、前記生成された候補集合から前記復号化対象ユニットのインター予測のために用いられる参照ユニットの動きベクトルを指示する、ステップ;を含み、
前記選択された候補ユニットは、前記復号化対象ユニットとは異なるピクチャリストを有するが前記再構成された隣接ユニットのうち前記復号化対象ユニットと同一の参照ピクチャを参照するユニットを示すことを特徴とする映像復号化方法。 - 前記候補ユニットを選択するステップは、
前記再構成された隣接ユニットのうち前記復号化対象ユニットに隣接する左側隣接ユニットから第1の候補ユニットを選択するステップ;及び、
前記再構成された隣接ユニットのうち前記復号化対象ユニットに隣接する上段隣接ユニットから第2の候補ユニットを選択するステップを含むことを特徴とする請求項1に記載の方法。 - 前記左側隣接ユニットは、左側最下段コーナーユニット及び左側隣接ユニットを含み、前記上段隣接ユニットは、上段右側コーナーユニット、上段隣接ユニット及び上段左側隣接ユニットを含むことを特徴とする請求項2に記載の方法。
- 前記第1の候補ユニットが、前記左側隣接ユニットがイントラモードで符号化されているか否かに基づいて選択され、前記第2の候補ユニットが、前記上段近隣ユニットがイントラモードで符号化されているか否かに基づいて選択されることを特徴とする請求項2に記載の方法。
- 選択される前記候補ユニットの個数は、所定の個数N(Nは0より大きい整数値)で制限されることを特徴とする請求項1に記載の方法。
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EP (4) | EP4340362A3 (ja) |
JP (11) | JP5668149B2 (ja) |
KR (11) | KR101588601B1 (ja) |
CN (15) | CN105611298B (ja) |
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