公开(公告)号：US09906789B2

公开(公告)日：2018-02-27

申请号：US15649412

申请日：2017-07-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Yang ,  Bin Li ,  Houqiang Li ,  Jiantong Zhou

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/186 ,  H04N19/159 ,  H04N19/46 ,  H04N19/44 ,  H04N19/593 ,  H04N19/196 ,  H04N19/463

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.

公开(公告)号：US20160373767A1

公开(公告)日：2016-12-22

申请号：US15240436

申请日：2016-08-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Yang ,  Amin Zheng ,  Yuan Yuan ,  Oscar Au

IPC: H04N19/174 ,  H04N19/184 ,  H04N19/593 ,  H04N19/129 ,  H04N19/146

CPC classification number: H04N19/174 ,  H04N19/129 ,  H04N19/146 ,  H04N19/184 ,  H04N19/593

Abstract: Encoding and decoding methods and apparatuses, which can fully utilize a spatial correlation in video information, thereby improving compression efficiency during encoding and decoding where the method includes determining, according to a total coding cost of a target image, a first processing order of multiple code blocks groups included in the target image, encoding a code blocks group of the multiple code blocks groups according to the first processing order, to generate a bitstream, and writing the first processing order to the bitstream. A first processing order of multiple code blocks groups included in a target image is determined according to a total coding cost of the target image, and the multiple code blocks groups are encoded and decoded according to the first processing order such that a spatial correlation in video information may be fully utilized, thereby improving compression efficiency during encoding and decoding.

Abstract translation: 可以充分利用视频信息中的空间相关性的编码和解码方法和装置，从而在编码和解码期间提高压缩效率，其中该方法包括根据目标图像的总编码成本确定多个代码的第一处理顺序 块组，包括在目标图像中，根据第一处理顺序对多个码块组的码块组进行编码，以生成比特流，并将第一处理顺序写入比特流。 根据目标图像的总编码成本确定包含在目标图像中的多个码块组的第一处理顺序，并且根据第一处理顺序对多个码块组进行编码和解码，使得视频中的空间相关性 可以充分利用信息，从而提高编码和解码期间的压缩效率。

公开(公告)号：US20160277734A1

公开(公告)日：2016-09-22

申请号：US15071269

申请日：2016-03-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changquan Ai ,  Shaobo Zhang ,  Haitao Yang

IPC: H04N19/105 ,  H04N19/172 ,  H04N19/44

Abstract: A video frame decoding method and apparatus in order to implement efficient and fast video decoding. The method includes acquiring a target time point of a video, obtaining a frame number of a corresponding random access frame according to the target time point, obtaining a frame number of a frame that can be independently decoded, where the dependency set includes at least one dependency, and the dependency represents a correspondence between a frame number of a random access frame and a frame number of a frame that can be independently decoded, and obtaining, according to the frame number of the frame that can be independently decoded, video data of the frame that can be independently decoded, and decoding the random access frame.

Abstract translation: 视频帧解码方法和装置，以实现高效快速的视频解码。 该方法包括获取视频的目标时间点，根据目标时间点获得对应的随机接入帧的帧号，获得可独立解码的帧的帧号，其中依赖关系集包括至少一个 依赖性，依赖性表示随机接入帧的帧号与可以独立解码的帧的帧号之间的对应关系，并且根据可以独立解码的帧的帧号获得视频数据 可以独立解码的帧，并对随机接入帧进行解码。

公开(公告)号：US09426461B2

公开(公告)日：2016-08-23

申请号：US13942411

申请日：2013-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiali Fu ,  Haitao Yang ,  Jingjing Dai ,  Zilian Qu

IPC: H04N7/26 ,  H04N19/50 ,  H04N19/159 ,  H04N19/176 ,  H04N19/13 ,  H04N19/463 ,  H04N19/105 ,  H04N19/593

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593

Abstract: A method and an apparatus for binarizing an intra prediction mode are provided. The method includes: acquiring an intra prediction mode of a luma component; if the intra prediction mode of the luma component is one kind of prediction mode in M, modifying a value of a serial number of a prediction mode Luma Angle of a chroma component to I; sequencing all prediction modes of the chroma component according to a preset rule; and performing binarization on the modified Luma Angle, and sending the binarized Luma Angle to a decoding end. A method for coding an intra prediction mode and a method and an apparatus for decoding an intra prediction mode are further provided. According to the present invention, coding efficiency is improved.

Abstract translation: 提供了一种用于二值化帧内预测模式的方法和装置。 该方法包括：获得亮度分量的帧内预测模式; 如果亮度分量的帧内预测模式是M中的一种预测模式，则将色度分量的预测模式亮度角的序列号的值修改为I; 根据预设规则对色度分量的所有预测模式进行排序; 并对修改的亮度角执行二值化，并将二值化的亮度角发送到解码端。 还提供了一种帧内预测模式的编码方法以及用于对帧内预测模式进行解码的方法和装置。 根据本发明，编码效率提高。

公开(公告)号：US09351001B2

公开(公告)日：2016-05-24

申请号：US14839626

申请日：2015-08-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Haitao Yang ,  Bin Li ,  Houqiang Li ,  Jiantong Zhou

IPC: H04N7/12 ,  H04N19/11 ,  H04N19/176 ,  H04N19/46 ,  H04N19/186 ,  H04N19/44 ,  H04N19/593

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.

公开(公告)号：US20130315304A1

公开(公告)日：2013-11-28

申请号：US13942411

申请日：2013-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiali Fu ,  Haitao Yang ,  Jingjing Dai ,  Zilian Qu

IPC: H04N7/32

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593

Abstract: A method and an apparatus for binarizing an intra prediction mode are provided. The method includes: acquiring an intra prediction mode of a luma component; if the intra prediction mode of the luma component is one kind of prediction mode in M, modifying a value of a serial number of a prediction mode Luma Angle of a chroma component to I; sequencing all prediction modes of the chroma component according to a preset rule; and performing binarization on the modified Luma Angle, and sending the binarized Luma Angle to a decoding end. A method for coding an intra prediction mode and a method and an apparatus for decoding an intra prediction mode are further provided. According to the present invention, coding efficiency is improved.

Abstract translation: 提供了一种用于二值化帧内预测模式的方法和装置。 该方法包括：获得亮度分量的帧内预测模式; 如果亮度分量的帧内预测模式是M中的一种预测模式，则将色度分量的预测模式亮度角的序列号的值修改为I; 根据预设规则对色度分量的所有预测模式进行排序; 并对修改的亮度角执行二值化，并将二值化的亮度角发送到解码端。 还提供了一种帧内预测模式的编码方法以及用于对帧内预测模式进行解码的方法和装置。 根据本发明，编码效率提高。

公开(公告)号：US20130215964A1

公开(公告)日：2013-08-22

申请号：US13847044

申请日：2013-03-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Yang ,  Jiantong Zhou

IPC: H04N7/26

CPC classification number: H04N19/50 ,  H04N19/129 ,  H04N19/157 ,  H04N19/176 ,  H04N19/61

Abstract: A scanning method and device, and a reverse scanning method and device in coding and decoding technologies are provided. The scanning method includes: receiving quantized transformed coefficients of a current block; obtaining a prediction direction of the current block; finding, according to the prediction direction, a scanning order corresponding to the prediction direction of the current block from a mapping relationship table of the prediction direction and the scanning order, wherein at least one scanning order in the mapping relationship table of the prediction direction and the scanning order corresponds to at least two prediction directions; and performing scanning processing on the coefficients by using the scanning order corresponding to the prediction direction of the current block. With the solutions of the present invention, the number of the scanning orders used in coding and decoding is decreased, and system complexity of a codec system is reduced.

Abstract translation: 提供了扫描方法和装置，以及编码和解码技术中的反向扫描方法和装置。 扫描方法包括：接收当前块的量化变换系数; 获取当前块的预测方向; 根据预测方向，从预测方向和扫描顺序的映射关系表中，找出与当前块的预测方向对应的扫描顺序，其中，在预测方向的映射关系表中的至少一个扫描顺序和 扫描顺序对应于至少两个预测方向; 利用与当前块的预测方向对应的扫描顺序，对系数进行扫描处理。 通过本发明的解决方案，编码和解码中使用的扫描次数减少，编解码系统的系统复杂度降低。

公开(公告)号：US12289455B2

公开(公告)日：2025-04-29

申请号：US18581610

申请日：2024-02-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang Ma ,  Fan Mu ,  Yin Zhao ,  Haitao Yang

IPC: H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: This application provides a chroma block prediction method and apparatus. The method includes: obtaining chroma values of chroma samples; obtaining, luma values of luma samples corresponding to the chroma samples; obtaining, from the luma values, a first luma set and a second luma set; grouping the chroma values into a first chroma set and a second chroma set; determining a scaling coefficient in a linear model based on an average value of luma values in the first luma set, an average value of luma values in the second luma set, an average value of chroma values in the first chroma set, and an average value of chroma values in the second chroma set; determining, based on the scaling coefficient, an offset factor in the linear model; and determining prediction information of the chroma block based on the scaling coefficient and the offset factor.

公开(公告)号：US12262053B2

公开(公告)日：2025-03-25

申请号：US18544099

申请日：2023-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Ma ,  Jianle Chen ,  Haitao Yang

IPC: H04N19/11 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/593

Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a video signal partitioned into a chroma block and a first neighboring luma block. The mechanism also includes encoding prediction information for chroma samples of the chroma block into a bitstream. The prediction information for the chroma samples is determined via intra-prediction based on down-sampled neighboring luma samples. The down-sampled neighboring luma samples are generated from a single row of luma samples from the first neighboring luma block. A bitstream including the prediction information for the chroma samples is transmitted to support decoding and display of the chroma samples.

公开(公告)号：US12225186B2

公开(公告)日：2025-02-11

申请号：US17644603

申请日：2021-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Chen ,  Haitao Yang ,  Lian Zhang

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: This application discloses an apparatus for constructing a merge candidate motion information list, including: one or more processors; a non-transitory memory storage comprising instructions which when executed by the one or more processors, cause the apparatus to obtain first motion information and add the first motion information to a first candidate motion information set, to obtain a second candidate motion information set; obtain second motion information based on an HMVP candidate motion information list; when the second motion information is different from all motion information in the second candidate motion information set, add the second motion information to the second candidate motion information set, to obtain a merge candidate motion information list, wherein a quantity of pieces of motion information in the merge candidate motion information set is equal to a preset threshold. Implementing this application reduces complexity in constructing the merge candidate motion information list, and improve coding efficiency.