公开(公告)号：US20160373765A1

公开(公告)日：2016-12-22

申请号：US15254669

申请日：2016-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingyu Zhang ,  Oscar Au ,  Haitao Yang ,  Jiantong Zhou

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/593

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/593

Abstract: An intra-frame decoding method includes obtaining, from a video code stream, prediction mode information of a first signal component of a current block; determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode; obtaining a predicted value of a first signal component sampling point of the current block; and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

Abstract translation: 帧内解码方法包括从视频码流获取当前块的第一信号分量的预测模式信息; 根据当前块的第一信号分量的预测模式信息，从当前块的第一信号分量的预测模式集合确定当前块的第一信号分量的预测模式，其中预测模式集合 当前块的第一信号分量包括以上线性模型（LMA）模式和线性模型左（LML）模式中的至少一个; 获取当前块的第一信号分量采样点的预测值; 根据当前块的第一信号分量采样点的预测值，获得当前块的第一信号分量采样点的重构值。

公开(公告)号：US20220385920A1

公开(公告)日：2022-12-01

申请号：US17837574

申请日：2022-06-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingyu Zhang ,  Oscar Au ,  Haitao Yang ,  Jiantong Zhou

IPC: H04N19/159 ,  H04N19/14 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/593

Abstract: An intra-frame decoding method includes obtaining, from a video code stream, prediction mode information of a first signal component of a current block, determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode; obtaining a predicted value of a first signal component sampling point of the current block, and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

公开(公告)号：US20190268602A1

公开(公告)日：2019-08-29

申请号：US16394763

申请日：2019-04-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingyu Zhang ,  Oscar Au ,  Haitao Yang ,  Jiantong Zhou

IPC: H04N19/159 ,  H04N19/59 ,  H04N19/186 ,  H04N19/14 ,  H04N19/176 ,  H04N19/105 ,  H04N19/593

Abstract: An intra-frame decoding method is provided. The method includes: obtaining, from a video code stream, prediction mode information of a first signal component of a current block, determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode, obtaining a predicted value of a first signal component sampling point of the current block, and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

公开(公告)号：US10313677B2

公开(公告)日：2019-06-04

申请号：US15862240

申请日：2018-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingyu Zhang ,  Oscar Au ,  Haitao Yang ,  Jiantong Zhou

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/593 ,  H04N19/186 ,  H04N19/59 ,  H04N19/14

Abstract: An intra-frame decoding method includes obtaining, from a video code stream, prediction mode information of a first signal component of a current block; determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode; obtaining a predicted value of a first signal component sampling point of the current block; and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

公开(公告)号：US09900601B2

公开(公告)日：2018-02-20

申请号：US15254669

申请日：2016-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingyu Zhang ,  Oscar Au ,  Haitao Yang ,  Jiantong Zhou

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/593 ,  H04N19/186 ,  H04N19/59 ,  H04N19/14

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/593

Abstract: An intra-frame decoding method includes obtaining, from a video code stream, prediction mode information of a first signal component of a current block; determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode; obtaining a predicted value of a first signal component sampling point of the current block; and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

公开(公告)号：US09674529B2

公开(公告)日：2017-06-06

申请号：US14265491

申请日：2014-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Yang ,  Jiantong Zhou ,  Oscar Au

IPC: H04N19/593 ,  H04N19/176 ,  H04N19/11 ,  H04N19/70 ,  H04N19/186 ,  H04N19/157 ,  H04N19/44

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/70

Abstract: Embodiments of the present invention provide an intra-frame decoding method and apparatus for a signal component sampling point of an image block. The method includes: obtaining prediction mode information about a first signal component of a current block from a video code stream; determining a prediction mode for the first signal component of the current block, where the prediction mode for the first signal component of the current block is one of a DM mode and an LM mode; obtaining a prediction value of a first signal component sampling point of the current block according to the prediction mode for the first signal component of the current block; and obtaining a reconstruction value of the first signal component sampling point of the current block. The technical solutions provided by the embodiments of the present invention reduce complexity of implementing a decoding end.

公开(公告)号：US09462273B2

公开(公告)日：2016-10-04

申请号：US14265788

申请日：2014-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingyu Zhang ,  Oscar Au ,  Haitao Yang ,  Jiantong Zhou

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/14

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/593

Abstract: An intra-frame decoding method is provided. The method includes: obtaining, from a video code stream, prediction mode information of a first signal component of a current block; determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode; obtaining a predicted value of a first signal component sampling point of the current block; and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

Abstract translation: 提供帧内解码方法。 该方法包括：从视频码流获取当前块的第一信号分量的预测模式信息; 根据当前块的第一信号分量的预测模式信息，从当前块的第一信号分量的预测模式集合确定当前块的第一信号分量的预测模式，其中预测模式集合 当前块的第一信号分量包括以上线性模型（LMA）模式和线性模型左（LML）模式中的至少一个; 获取当前块的第一信号分量采样点的预测值; 根据当前块的第一信号分量采样点的预测值，获得当前块的第一信号分量采样点的重构值。

公开(公告)号：US20140233650A1

公开(公告)日：2014-08-21

申请号：US14265788

申请日：2014-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingyu Zhang ,  Oscar Au ,  Haitao Yang ,  Jiantong Zhou

IPC: H04N19/593 ,  H04N19/40

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/593

Abstract: An intra-frame decoding method is provided. The method includes: obtaining, from a video code stream, prediction mode information of a first signal component of a current block; determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode; obtaining a predicted value of a first signal component sampling point of the current block; and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

Abstract translation: 提供帧内解码方法。 该方法包括：从视频码流获取当前块的第一信号分量的预测模式信息; 根据当前块的第一信号分量的预测模式信息，从当前块的第一信号分量的预测模式集合确定当前块的第一信号分量的预测模式，其中预测模式集合 当前块的第一信号分量包括以上线性模型（LMA）模式和线性模型左（LML）模式中的至少一个; 获取当前块的第一信号分量采样点的预测值; 根据当前块的第一信号分量采样点的预测值，获得当前块的第一信号分量采样点的重构值。

公开(公告)号：US20140233641A1

公开(公告)日：2014-08-21

申请号：US14265491

申请日：2014-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Yang ,  Jiantong Zhou ,  Oscar Au

IPC: H04N19/593 ,  H04N19/44 ,  H04N19/46 ,  H04N19/103 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/70

Abstract: Embodiments of the present invention provide an intra-frame decoding method and apparatus for a signal component sampling point of an image block. The method includes: obtaining prediction mode information about a first signal component of a current block from a video code stream; determining a prediction mode for the first signal component of the current block, where the prediction mode for the first signal component of the current block is one of a DM mode and an LM mode; obtaining a prediction value of a first signal component sampling point of the current block according to the prediction mode for the first signal component of the current block; and obtaining a reconstruction value of the first signal component sampling point of the current block. The technical solutions provided by the embodiments of the present invention reduce complexity of implementing a decoding end.

Abstract translation: 本发明的实施例提供了一种用于图像块的信号分量采样点的帧内解码方法和装置。 该方法包括：从视频码流获取关于当前块的第一信号分量的预测模式信息; 确定当前块的第一信号分量的预测模式，其中当前块的第一信号分量的预测模式是DM模式和LM模式之一; 根据当前块的第一信号分量的预测模式，获得当前块的第一信号分量采样点的预测值; 并获得当前块的第一信号分量采样点的重构值。 由本发明的实施例提供的技术方案降低了实现解码端的复杂度。

公开(公告)号：US11375205B2

公开(公告)日：2022-06-28

申请号：US17104894

申请日：2020-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingyu Zhang ,  Oscar Au ,  Haitao Yang ,  Jiantong Zhou

IPC: H04N19/159 ,  H04N19/14 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/593

Abstract: An intra-frame decoding method includes obtaining, from a video code stream, prediction mode information of a first signal component of a current block, determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode, obtaining a predicted value of a first signal component sampling point of the current block, and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.