JP6200049B2 - 映像情報のシグナリング方法及び映像情報のシグナリング方法を用いた映像情報の復号化方法 - Google Patents
映像情報のシグナリング方法及び映像情報のシグナリング方法を用いた映像情報の復号化方法 Download PDFInfo
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Description
Claims (8)
- スキップフラグと、マージフラグと、パーティションタイプに関する情報と、を有する予測情報を受信するステップと、
スキップモードが適用されるか否かを示す前記スキップフラグを確認するステップと、
前記スキップフラグの値が0である場合、前記パーティションタイプに関する情報に基づいて現在ブロックのパーティションタイプを決定するステップと、
前記パーティションタイプに基づいて導出された前記現在ブロックにマージモードが適用されるか否かを示す前記マージフラグを確認するステップと、
前記マージフラグを確認するステップの結果に基づいて、前記現在ブロックに対するインター予測を実行して、予測サンプルを導出するステップと、を有し、
前記パーティションタイプに関する情報は、前記現在ブロックの前記パーティションタイプに関するバイナリコードを有し、
2N×2Nのパーティションタイプに関するバイナリコードは「1」であり、2N×Nのパーティションタイプに関するバイナリコードは「01」であり、N×2Nのパーティションタイプに関するバイナリコードは「001」である、映像復号化装置による映像の復号化方法。 - 前記マージフラグの値が1である場合、現在ブロックの周辺ブロックの動きベクトルが前記現在ブロックの動きベクトルとして使用され、
前記予測サンプルは、前記現在ブロックの動きベクトルに基づいて導出される、請求項1に記載の映像の復号化方法。 - 前記マージフラグの値が0である場合、前記現在ブロックの動きベクトルは、i)前記現在ブロックの周辺ブロックの動きベクトル、および、ii)シグナリングされた動きベクトルの差に基づいて導出される、請求項1に記載の映像の復号化方法。
- 前記マージフラグの値が1である場合、前記現在ブロックの空間周辺ブロックおよび時間周辺ブロックを有する周辺ブロックから選択されたブロックの動きベクトルが、前記現在ブロックの動きベクトルとして使用され、
前記予測サンプルは、前記現在ブロックの動きベクトルに基づいて導出される、請求項1に記載の映像の復号化方法。 - 符号化ユニットに関するスプリットフラグを受信するステップと、
前記スキップフラグを確認するステップの前に、前記スプリットフラグに基づいて現在符号化ユニットを導出するステップと、をさらに有する、請求項1に記載の映像の復号化方法。 - 前記現在ブロックは、前記パーティションタイプに基づいて前記現在符号化ユニットから分割される、請求項5に記載の映像の復号化方法。
- 前記現在符号化ユニットのサイズが最小符号化ユニットのサイズと同じである場合のみ、N×Nのパーティションタイプが使用可能である、請求項5に記載の映像の復号化方法。
- 前記N×Nのパーティションタイプのバイナリコードは、1を用いずに複数の0で構成される、請求項7に記載の映像の復号化方法。
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