JPWO2020050684A5 - - Google Patents
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- JPWO2020050684A5 JPWO2020050684A5 JP2021512701A JP2021512701A JPWO2020050684A5 JP WO2020050684 A5 JPWO2020050684 A5 JP WO2020050684A5 JP 2021512701 A JP2021512701 A JP 2021512701A JP 2021512701 A JP2021512701 A JP 2021512701A JP WO2020050684 A5 JPWO2020050684 A5 JP WO2020050684A5
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- 239000011159 matrix material Substances 0.000 claims 20
- 239000000523 sample Substances 0.000 claims 12
- 238000000034 method Methods 0.000 claims 8
- 238000003672 processing method Methods 0.000 claims 8
- 238000004590 computer program Methods 0.000 claims 6
- 239000013074 reference sample Substances 0.000 claims 6
- 238000005070 sampling Methods 0.000 claims 2
Claims (23)
現在ブロックのイントラ予測モードを決定するステップと、
前記現在ブロックのイントラ予測に用いられる参照サンプルを決定するステップと、
前記イントラ予測モードに基づいて、所定の行列を決定するステップと、
前記参照サンプル及び行列に基づいて、前記現在ブロックを予測するステップと、を含み、
前記参照サンプル及び行列に基づいて、前記現在ブロックを予測するステップは、
前記参照サンプルに前記行列を適用することで予測ブロックを生成するステップを含む、ビデオ信号処理方法。 A video signal processing method, performed by a decoder,
determining the intra-prediction mode of the current block;
determining reference samples to be used for intra prediction of the current block;
determining a predetermined matrix based on the intra prediction mode;
predicting the current block based on the reference samples and matrix;
Predicting the current block based on the reference samples and matrix comprises:
A method of processing a video signal, comprising generating a prediction block by applying said matrix to said reference samples.
前記現在ブロックの隣接領域を決定するステップと、
前記決定された隣接領域に対してダウンサンプリングを行うステップと、を含み、
前記隣接領域は、複数のサンプルグループに分けられ、
前記サンプルグループは、1つ又は1つ以上のサンプルからなり、
前記サンプルグループの代表値は、前記参照サンプルで決定され、
前記代表値は、平均値、最小値、最大値、最頻値又は中間値のうちのいずれか1つである
請求項1に記載のビデオ信号処理方法。 The step of determining the reference sample comprises:
determining neighboring regions of the current block;
down-sampling the determined neighboring regions;
the contiguous region is divided into a plurality of sample groups;
The sample group consists of one or more samples,
a representative value for the sample group is determined for the reference sample;
The video signal processing method according to claim 1, wherein said representative value is one of an average value, minimum value, maximum value, mode value and median value.
前記符号化情報は、前記現在ブロックの大きさ及び形状を含む
請求項1に記載のビデオ信号処理方法。 the matrix is determined by further considering coding information of the current block;
2. The method of claim 1, wherein the encoding information includes size and shape of the current block.
前記生成された予測ブロックの全て又は一部の予測サンプルを再配列するステップを更に含む
請求項1に記載のビデオ信号処理方法。 Predicting the current block based on the reference samples and matrix comprises:
2. The method of claim 1, further comprising rearranging prediction samples of all or part of the generated prediction block.
前記予測ブロック又は前記現在ブロックに隣接する再構築されたサンプルのうちの少なくとも1つに基づいて、前記現在ブロックに対して補間を行うことを更に含む
請求項1に記載のビデオ信号処理方法。 Predicting the current block based on the reference samples and matrix comprises:
2. The method of claim 1, further comprising interpolating for the current block based on at least one of the predicted block or reconstructed samples adjacent to the current block.
現在ブロックのイントラ予測モードを決定するステップと、
前記現在ブロックのイントラ予測に用いられる参照サンプルを決定するステップと、
前記イントラ予測モードに基づいて、所定の行列を決定するステップと、
前記参照サンプル及び行列に基づいて、前記現在ブロックを予測するステップと、を含み、
前記参照サンプル及び行列に基づいて、前記現在ブロックを予測するステップは、
前記参照サンプルに前記行列を適用することで予測ブロックを生成するステップを含む、ビデオ信号処理方法。 A video signal processing method, performed by an encoder,
determining the intra-prediction mode of the current block;
determining reference samples to be used for intra prediction of the current block;
determining a predetermined matrix based on the intra prediction mode;
predicting the current block based on the reference samples and matrix;
Predicting the current block based on the reference samples and matrix comprises:
A method of processing a video signal, comprising generating a prediction block by applying said matrix to said reference samples.
前記現在ブロックの隣接領域を決定するステップと、
前記決定された隣接領域に対してダウンサンプリングを行うステップと、を含み、
前記隣接領域は、複数のサンプルグループに分けられ、
前記サンプルグループは、1つ又は1つ以上のサンプルからなり、
前記サンプルグループの代表値は、前記参照サンプルで決定され、
前記代表値は、平均値、最小値、最大値、最頻値又は中間値のうちのいずれか1つである
請求項6に記載のビデオ信号処理方法。 The step of determining the reference sample comprises:
determining neighboring regions of the current block;
down-sampling the determined neighboring regions;
the contiguous region is divided into a plurality of sample groups;
The sample group consists of one or more samples,
a representative value for the sample group is determined for the reference sample;
7. The video signal processing method according to claim 6, wherein said representative value is one of an average value, minimum value, maximum value, mode value and median value.
前記符号化情報は、前記現在ブロックの大きさ及び形状を含む
請求項6に記載のビデオ信号処理方法。 the matrix is determined by further considering coding information of the current block;
7. The method of claim 6, wherein the encoding information includes size and shape of the current block.
前記生成された予測ブロックの全て又は一部の予測サンプルを再配列するステップを更に含む
請求項6に記載のビデオ信号処理方法。 Predicting the current block based on the reference samples and matrix comprises:
7. The method of claim 6, further comprising rearranging prediction samples of all or part of the generated prediction block.
前記予測ブロック又は前記現在ブロックに隣接する再構築されたサンプルのうちの少なくとも1つに基づいて、前記現在ブロックに対して補間を行うことを更に含む
請求項6に記載のビデオ信号処理方法。 Predicting the current block based on the reference samples and matrix comprises:
7. The method of claim 6, further comprising interpolating for the current block based on at least one of the predicted block or reconstructed samples adjacent to the current block.
現在ブロックのイントラ予測モードを決定するように構成される第1決定ユニットと、
前記現在ブロックのイントラ予測に用いられる参照サンプルを決定するように構成される第2決定ユニットと、
前記イントラ予測モードに基づいて、所定の行列を決定するように構成される第3決定ユニットと、
前記参照サンプルに前記行列を適用することで予測ブロックを生成するように構成される生成ユニットと、を含む、ビデオ信号処理用の復号装置。 A decoding device for video signal processing,
a first determining unit configured to determine an intra-prediction mode of a current block;
a second determining unit configured to determine reference samples to be used for intra prediction of the current block;
a third determining unit configured to determine a predetermined matrix based on the intra prediction mode;
a generating unit configured to generate a prediction block by applying said matrix to said reference samples.
前記現在ブロックの隣接領域を決定し、
前記決定された隣接領域に対してダウンサンプリングを行うように構成され、
前記隣接領域は、複数のサンプルグループに分けられ、
前記サンプルグループは、1つ又は1つ以上のサンプルからなり、
前記サンプルグループの代表値は、前記参照サンプルで決定され、
前記代表値は、平均値、最小値、最大値、最頻値又は中間値のうちのいずれか1つである
請求項11に記載のビデオ信号処理用の復号装置。 The second determining unit further:
determining neighboring regions of the current block;
configured to perform downsampling on the determined adjacent region;
the contiguous region is divided into a plurality of sample groups;
The sample group consists of one or more samples,
a representative value for the sample group is determined for the reference sample;
12. The decoding device for video signal processing according to claim 11, wherein said representative value is one of an average value, a minimum value, a maximum value, a mode value and a median value.
前記符号化情報は、前記現在ブロックの大きさ及び形状を含む
請求項11に記載のビデオ信号処理用の復号装置。 the matrix is determined by further considering coding information of the current block;
The decoding device for video signal processing according to claim 11, wherein the encoding information includes the size and shape of the current block.
前記生成された予測ブロックの全て又は一部の予測サンプルを再配列するように構成される
請求項11に記載のビデオ信号処理用の復号装置。 The generating unit further comprises:
12. A decoding device for video signal processing according to claim 11, arranged to rearrange the prediction samples of all or part of the generated prediction block.
前記予測ブロック又は前記現在ブロックに隣接する再構築されたサンプルのうちの少なくとも1つに基づいて、前記現在ブロックに対して補間を行うように構成される
請求項11に記載のビデオ信号処理用の復号装置。 The generating unit further comprises:
12. The video signal processing device of claim 11, configured to perform interpolation for the current block based on at least one of the predicted block or reconstructed samples neighboring the current block. decryption device.
プロセッサと、
前記プロセッサで実行可能なコンピュータプログラムを記憶するように構成されるメモリと、を備え、
前記コンピュータプログラムが前記プロセッサによって実行されるとき、前記プロセッサは、請求項1~5のいずれか一項に記載のビデオ信号処理方法を実施するように構成される、デコーダー。 a decoder,
a processor;
a memory configured to store a computer program executable by the processor;
A decoder, wherein, when said computer program is executed by said processor, said processor is adapted to implement the video signal processing method according to any one of claims 1 to 5.
現在ブロックのイントラ予測モードを決定するように構成される第1決定ユニットと、
前記現在ブロックのイントラ予測に用いられる参照サンプルを決定するように構成される第2決定ユニットと、
前記イントラ予測モードに基づいて、所定の行列を決定するように構成される第3決定ユニットと、
前記参照サンプルに前記行列を適用することで予測ブロックを生成するように構成される生成ユニットと、を含む、ビデオ信号処理用の符号化装置。 An encoding device for video signal processing, comprising:
a first determining unit configured to determine an intra-prediction mode of a current block;
a second determining unit configured to determine reference samples to be used for intra prediction of the current block;
a third determining unit configured to determine a predetermined matrix based on the intra prediction mode;
a generation unit configured to generate a prediction block by applying said matrix to said reference samples.
前記現在ブロックの隣接領域を決定し、
前記決定された隣接領域に対してダウンサンプリングを行うように構成され、
前記隣接領域は、複数のサンプルグループに分けられ、
前記サンプルグループは、1つ又は1つ以上のサンプルからなり、
前記サンプルグループの代表値は、前記参照サンプルで決定され、
前記代表値は、平均値、最小値、最大値、最頻値又は中間値のうちのいずれか1つである
請求項17に記載のビデオ信号処理用の符号化装置。 The second determining unit further:
determining neighboring regions of the current block;
configured to perform downsampling on the determined adjacent region;
the contiguous region is divided into a plurality of sample groups;
The sample group consists of one or more samples,
a representative value for the sample group is determined for the reference sample;
18. The encoding device for video signal processing according to claim 17, wherein said representative value is one of an average value, a minimum value, a maximum value, a mode value and a median value.
前記符号化情報は、前記現在ブロックの大きさ及び形状を含む
請求項17に記載のビデオ信号処理用の符号化装置。 the matrix is determined by further considering coding information of the current block;
18. The encoding apparatus for video signal processing as claimed in claim 17, wherein the encoding information includes the size and shape of the current block.
前記生成された予測ブロックの全て又は一部の予測サンプルを再配列するように構成される
請求項17に記載のビデオ信号処理用の符号化装置。 The generating unit further comprises:
18. A coding device for processing video signals according to claim 17, arranged to rearrange the prediction samples of all or part of the generated prediction block.
前記予測ブロック又は前記現在ブロックに隣接する再構築されたサンプルのうちの少なくとも1つに基づいて、前記現在ブロックに対して補間を行うように構成される
請求項17に記載のビデオ信号処理用の符号化装置。 The generating unit further comprises:
18. The video signal processing device of claim 17, configured to perform interpolation for the current block based on at least one of the predicted block or reconstructed samples adjacent to the current block. Encoding device.
プロセッサと、
前記プロセッサで実行可能なコンピュータプログラムを記憶するように構成されるメモリと、を備え、
前記コンピュータプログラムが前記プロセッサによって実行されるとき、前記プロセッサは、請求項6~10のいずれか一項に記載のビデオ信号処理方法を実施するように構成される、エンコーダー。 an encoder,
a processor;
a memory configured to store a computer program executable by the processor;
An encoder, wherein when said computer program is executed by said processor, said processor is arranged to implement the video signal processing method according to any one of claims 6 to 10.
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