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：US08804827B2

公开(公告)日：2014-08-12

申请号：US14102186

申请日：2013-12-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Yang ,  Jiantong Zhou

IPC: H04N7/50

CPC classification number: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593

Abstract: Embodiments of the present invention provide an encoding or decoding method and apparatus. The method includes: extracting first information in a bitstream; determining a chroma component intra prediction mode according to the first information; when the chroma component intra prediction mode cannot be determined according to the first information, extracting second information in the bitstream; and determining the chroma component intra prediction mode according to the second information, where the first information includes information for indicating whether the chroma component intra prediction mode is a DM mode or an LM mode, the second information is used to indicate a remaining mode as the chroma component intra prediction mode, and the remaining mode is one of available chroma component intra prediction modes other than a mode that may be determined according to the first information.

Abstract translation: 本发明的实施例提供一种编码或解码方法和装置。 该方法包括：提取比特流中的第一信息; 根据第一信息确定色度分量帧内预测模式; 当色度分量帧内预测模式不能根据第一信息确定时，提取比特流中的第二信息; 以及根据所述第二信息确定所述色度分量帧内预测模式，其中所述第一信息包括用于指示所述色度分量帧内预测模式是DM模式还是LM模式的信息，所述第二信息用于将剩余模式指示为 色度分量帧内预测模式，并且剩余模式是可以根据第一信息确定的模式之外的可用色度分量帧内预测模式之一。