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公开(公告)号：US20200252645A1
公开(公告)日：2020-08-06
申请号：US16858222
申请日：2020-04-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huanbang CHEN , Haitao YANG , Shan GAO , Jiantong ZHOU , Shan LIU
Abstract: A method includes obtaining a first motion vector of a motion compensation unit included in an affine code block. The method also includes determining a second motion vector based on the first motion vector, where a precision of the second motion vector matches a motion vector precision of a storage unit corresponding to the motion compensation unit. The method further includes determining a third motion vector based on the second motion vector, where there is a preset correspondence between the third motion vector and the second motion vector, and the third motion vector is used for subsequent encoding/decoding processing.
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公开(公告)号：US20170034510A1
公开(公告)日：2017-02-02
申请号：US15294498
申请日：2016-10-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haitao YANG , Bin LI , Houqiang LI , Jiantong ZHOU
IPC: H04N19/11 , H04N19/186 , H04N19/159 , H04N19/176
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。
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公开(公告)号：US20150296221A1
公开(公告)日：2015-10-15
申请号：US14750608
申请日：2015-06-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haitao YANG , Bin LI , Houqiang LI , Jiantong ZHOU
IPC: H04N19/593 , H04N19/46 , H04N19/11 , H04N19/186 , H04N19/176 , H04N19/44
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。
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公开(公告)号：US20130315309A1
公开(公告)日：2013-11-28
申请号：US13947681
申请日：2013-07-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sixin LIN , Mingyuan YANG , Jiantong ZHOU , Haoping YU
IPC: H04N7/36
CPC classification number: H04N19/533 , H04N19/52 , H04N19/523 , H04N19/56
Abstract: Embodiments of the present invention provide a motion prediction or compensation method during a video coding and decoding process. A motion prediction or compensation method provided in the embodiments of the present invention includes: acquiring a candidate motion vector set; conducting a refined search for an optimal motion vector based on information of the candidate motion vector set; and performing motion prediction or compensation by using the motion vector acquired by the refined search. This improves coding performance and meanwhile maintains reasonable complexity.
Abstract translation: 本发明的实施例在视频编码和解码过程中提供运动预测或补偿方法。 本发明实施例提供的运动预测或补偿方法包括：获取候选运动矢量集; 基于候选运动矢量集的信息进行精确搜索最优运动矢量; 以及通过使用由精细搜索获得的运动矢量来执行运动预测或补偿。 这提高了编码性能，同时保持了合理的复杂性。
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5.发明申请公开(公告)号：US20180249160A1
公开(公告)日：2018-08-30
申请号：US15962149
申请日：2018-04-25
Inventor： Zhijie ZHAO , Jiantong ZHOU , Yiqun LIU , Joern OSTERMANN
IPC: H04N19/124 , H04N19/50 , H04N19/176 , H04N19/91
CPC classification number: H04N19/124 , H04N19/107 , H04N19/146 , H04N19/176 , H04N19/50 , H04N19/91 , H04N19/94
Abstract: An encoder for obtaining training signals and to train a codebook for vector quantization of a video sequence of subsequent frames is provided, each frame being subdivided into coding blocks. The encoder comprises a scalar quantization unit configured to obtain, for each coding block of one or more training frames of the video sequence, a scalar quantized signal from a prediction error, an entropy coding unit configured to entropy code, for each coding block of each training frame, the scalar quantized signal into an output signal, a data selection unit configured to select, from among the training frames, one or several coding blocks depending on a cost function of their respective output signal, and to obtain, for each selected coding block, a training signal derived from the prediction error of the selected coding block and configured to train the codebook for vector quantization of the video sequence.
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Patent Agency Ranking
公开(公告)号：US20160007020A1
公开(公告)日：2016-01-07
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: H04N19/11 , H04N19/186 , H04N19/46 , H04N19/176 , 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.
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公开(公告)号：US20140341282A1
公开(公告)日：2014-11-20
申请号：US14317040
申请日：2014-06-27
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Haitao YANG , Bin LI , Houqiang LI , Jiantong ZHOU
IPC: 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.
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。
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公开(公告)号：US20140233643A1
公开(公告)日：2014-08-21
申请号：US14266149
申请日：2014-04-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jin SONG , Jiantong ZHOU
IPC: H04N19/61 , H04N19/593
CPC classification number: H04N19/61 , H04N19/122 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/46
Abstract: Embodiments of the present invention disclose a transformation mode encoding and decoding method and apparatus. A correlation between the prediction mode and the transformation mode is used, and an optimal transformation mode candidate set is simplified, thereby saving resources when an index of an optimal transformation mode is encoded in encoding header information. In addition, encoding efficiency is higher when an encoding end elects a transformation mode.
Abstract translation: 本发明的实施例公开了一种变换模式编码和解码方法和装置。 使用预测模式和变换模式之间的相关性，并且简化了最佳变换模式候选集合，从而在编码头信息中编码最佳变换模式的索引时节省资源。 此外，当编码端选择变换模式时，编码效率更高。
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公开(公告)号：US20240054623A1
公开(公告)日：2024-02-15
申请号：US18494247
申请日：2023-10-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hu CHEN , Quanhe YU , Weiwei XU , Jiantong ZHOU , Ruihua LI
CPC classification number: G06T5/009 , G06T5/40 , G06T7/50 , G06T2207/10012 , G06T2207/10024 , G06T2207/20208
Abstract: This application relates to the field of image processing technologies, and discloses an image processing method and system, and a device, to resolve a problem that tone mapping greatly affects perception of a binocular 3D image. Based on a disparity map of a binocular image, a tone mapping curve is determined for a display device to display an image, instead of being generated merely based on image content. This makes a contrast of a tone mapped binocular image reach at least a level before tone mapping, thereby meeting a minimum disparity variation requirement for 3D perception by human eyes, and improving 3D perception of a 3D image displayed by the display device.
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公开(公告)号：US20220335962A1
公开(公告)日：2022-10-20
申请号：US17857725
申请日：2022-07-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin WANG , Bingyin XIA , Zhe WANG , Jiantong ZHOU
Abstract: An audio encoding method and device and an audio decoding method and device are provided. The audio encoding method includes: obtaining a current frame of an audio signal, where the current frame includes a high frequency band signal and a low frequency band signal; obtaining a compatible layer encoding parameter of the current frame based on the high frequency band signal and the low frequency band signal; obtaining an enhancement layer encoding parameter of the current frame based on the high frequency band signal; and performing bitstream multiplexing on the compatible layer encoding parameter and the enhancement layer encoding parameter to obtain an encoded bitstream.
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