JP7481426B2 - 4:4:4の彩度形式でのビデオ符号化の方法および装置 - Google Patents
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Description
本出願は、全体として参照により組み込まれている、2019年9月23日出願の「METHODS AND APPARATUS OF VIDEO CODING IN 4:4:4 CHROMA FORMAT」という名称の米国特許仮出願第62/904,539号に対する優先権を主張する。
Claims (5)
- ビデオデータを復号する方法であって、
前記ビデオデータ内の符号化ユニットが単一木区分によって符号化されているか、それとも双対木区分によって符号化されているかを示す第1の構文要素を、ビットストリームから受信することと、
前記符号化ユニットが単一木区分を使用して符号化されるとの決定に従って、
第2の構文要素を前記ビデオデータから決定することであって、前記第2の構文要素の値が、前記符号化ユニットの残差データが適応色空間変換(ACT)を使用することに適用されるかどうかを示すことであって、各符号化ユニットが輝度成分および彩度成分の両方を含むことと、
前記第2の構文要素の0以外の値に従って、前記符号化ユニットの前記残差データで逆ACTを実行することと、
を含む方法。 - 前記ビットストリームから、前記符号化ユニットに対応するビデオデータを受信することであって、前記符号化ユニットは、イントラ予測モードで符号化され、各符号化ユニットは、2つの彩度成分および1つの輝度成分を有することと、
前記ビデオデータから第3の構文要素を決定することであって、前記第3の構文要素は、前記符号化ユニットの前記輝度成分のイントラ予測パラメータを表すことと、
前記第2の構文要素が、前記符号化ユニットの前記残差データが前記ACTを使用することに適用されることを示す0以外の値を有するとの決定に従って、
前記符号化ユニットの前記輝度成分と同じイントラ予測パラメータを前記符号化ユニットの前記2つの彩度成分に適用することと、
をさらに含む、請求項1に記載の方法。 - 1つまたは複数の処理ユニットと、
前記1つまたは複数の処理ユニットに結合されたメモリと、
前記1つまたは複数の処理ユニットによって実行されたときに、
ビデオデータ内の符号化ユニットが単一木区分によって符号化されているか、それとも双対木区分によって符号化されているかを示す第1の構文要素を、ビットストリームから受信することと、
前記符号化ユニットが単一木区分を使用して符号化されるとの決定に従って、
第2の構文要素を前記ビデオデータから決定することであって、前記第2の構文要素の値が、前記符号化ユニットの残差データが適応色空間変換(ACT)を使用することに適用されるかどうかを示すことであって、各符号化ユニットが輝度成分および彩度成分の両方を含むことと、
前記第2の構文要素の0以外の値に従って、前記符号化ユニットの前記残差データで逆ACTを実行することと、を電子装置に実行させる、前記メモリに格納された複数のプログラムと、
を備える電子装置。 - 前記複数のプログラムは、
前記ビットストリームから、前記符号化ユニットに対応するビデオデータを受信することであって、前記符号化ユニットは、イントラ予測モードで符号化され、各符号化ユニットは、2つの彩度成分および1つの輝度成分を有することと、
前記ビデオデータから第3の構文要素を決定することであって、前記第3の構文要素は、前記符号化ユニットの前記輝度成分のイントラ予測パラメータを表すことと、
前記第2の構文要素が、前記符号化ユニットの前記残差データが前記ACTを使用することに適用されることを示す0以外の値を有するとの決定に従って、
前記符号化ユニットの前記輝度成分と同じイントラ予測パラメータを前記符号化ユニットの前記2つの彩度成分に適用することと、
をさらに前記電子装置に実行させる、請求項3に記載の電子装置。 - 1つまたは複数の処理ユニットを有する電子装置による実行のための複数のプログラムを格納する非一時的コンピュータ可読記憶媒体であって、前記複数のプログラムは、前記1つまたは複数の処理ユニットによって実行されたときに、請求項1または2に記載の方法を前記電子装置に実行させる、非一時的コンピュータ可読記憶媒体。
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JP2017513335A (ja) | 2014-03-14 | 2017-05-25 | ヴィド スケール インコーポレイテッド | Rgbビデオコーディングエンハンスメントのためのシステムおよび方法 |
JP2017531382A (ja) | 2014-09-12 | 2017-10-19 | ヴィド スケール インコーポレイテッド | ビデオ符号化のための成分間相関解除 |
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US20220201301A1 (en) | 2022-06-23 |
KR20220138031A (ko) | 2022-10-12 |
JP2024038261A (ja) | 2024-03-19 |
WO2021061794A1 (en) | 2021-04-01 |
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