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    Luma and Chroma Block Partitioning
    111.
    发明申请
    Luma and Chroma Block Partitioning 有权

    公开(公告)号：US20210037242A1

    公开(公告)日：2021-02-04

    申请号：US17072865

    申请日：2020-10-16

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yin Zhao ,  Haitao Yang ,  Jianle Chen ,  Jiali Fu

    IPC: H04N19/119 ,  H04N19/132 ,  H04N19/96 ,  H04N19/159 ,  H04N19/46 ,  H04N19/186 ,  H04N19/169

    Abstract: A video coding mechanism is disclosed. The mechanism includes obtaining a coding tree unit including luma samples and chroma samples. The mechanism partitions the luma samples and the chroma samples according to a common coding tree when a size of a first coding tree node exceeds a threshold. The mechanism also partitions the luma samples with a luma coding sub-tree when a size of a second coding tree node is equal to or less than the threshold. The mechanism also chroma samples with a chroma coding sub-tree when a size of a third coding tree node is equal to or less than the threshold. The luma coding sub-tree contains a different set of split modes than the chroma coding sub-tree.

    Motion compensating prediction method and apparatus
    112.
    发明授权
    Motion compensating prediction method and apparatus 有权

    公开(公告)号：US10911767B2

    公开(公告)日：2021-02-02

    申请号：US16385600

    申请日：2019-04-16

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiang Ma ,  Haitao Yang

    IPC: H04N19/51 ,  H04N19/182 ,  H04N19/59 ,  H04N19/597 ,  H04N19/513

    Abstract: A motion compensating prediction method includes: determining a location of an initial reference pixel of a current pixel in a reference image, where the current pixel is located in a first sub-image in a current image, when the initial reference pixel is located outside a second sub-image at a location corresponding to the first sub-image in the reference image, determining a location of a target reference pixel of the current pixel in the reference image based on the location of the initial reference pixel, where location precision of the target reference pixel is limited to being less than or equal to preset pixel location precision, and determining a predicted value of a pixel value of the current pixel based on a pixel value of the target reference pixel and/or a pixel value of a neighboring pixel of the target reference pixel.

    Motion-compensated prediction method and apparatus
    114.
    发明授权
    Motion-compensated prediction method and apparatus 有权

    公开(公告)号：US10779000B2

    公开(公告)日：2020-09-15

    申请号：US16371486

    申请日：2019-04-01

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiang Ma ,  Haitao Yang

    IPC: H04N19/52 ,  H04N19/182 ,  H04N19/547 ,  H04N19/597 ,  H04N19/176 ,  H04N19/85 ,  H04N19/105

    Abstract: Embodiments of this application provide a motion-compensated prediction method which includes determining a location that is of an initial reference pixel of a current pixel and that is in a reference image, where the current pixel is located in a first sub-image in the current image; when the initial reference pixel is located outside a second sub-image that is in the reference image and that is at a location corresponding to the first sub-image, determining, based on the location of the initial reference pixel, a location that is of a target reference pixel of the current pixel and that is in the reference image; and determining a prediction value of a pixel value of the current pixel based on a pixel value of the target reference pixel and/or a pixel value of a neighboring pixel of the target reference pixel.

    Motion Compensating Prediction Method and Apparatus
    116.
    发明申请
    Motion Compensating Prediction Method and Apparatus 审中-公开

    公开(公告)号：US20190273936A1

    公开(公告)日：2019-09-05

    申请号：US16385600

    申请日：2019-04-16

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiang Ma ,  Haitao Yang

    IPC: H04N19/51 ,  H04N19/597 ,  H04N19/59 ,  H04N19/182

    Abstract: A motion compensating prediction method includes: determining a location of an initial reference pixel of a current pixel in a reference image, where the current pixel is located in a first sub-image in a current image, when the initial reference pixel is located outside a second sub-image at a location corresponding to the first sub-image in the reference image, determining a location of a target reference pixel of the current pixel in the reference image based on the location of the initial reference pixel, where location precision of the target reference pixel is limited to being less than or equal to preset pixel location precision, and determining a predicted value of a pixel value of the current pixel based on a pixel value of the target reference pixel and/or a pixel value of a neighboring pixel of the target reference pixel.

    Method and apparatus for acquiring video bitstream
    117.
    发明授权
    Method and apparatus for acquiring video bitstream 有权

    公开(公告)号：US10404606B2

    公开(公告)日：2019-09-03

    申请号：US15177751

    申请日：2016-06-09

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhuoyi Lv ,  Jiantong Zhou ,  Jiali Fu ,  Haitao Yang

    IPC: H04L12/825 ,  H04N21/258 ,  H04N21/262 ,  H04N21/442 ,  H04N21/845 ,  H04N21/2343 ,  H04N21/462 ,  H04L29/06

    Abstract: Embodiments of the present invention disclose a method and an apparatus for acquiring a video bitstream, and relate to the field of information technologies, which can improve network bandwidth utilization. The method includes: firstly, acquiring, by a terminal, a minimum bit rate corresponding to a parameter of the terminal; then, sending, by the terminal, a video bitstream acquiring request to a server, and when receiving the video bitstream acquiring request sent by the terminal, sending, by the server, an MPD to the terminal; and finally, receiving, by the terminal, the MPD sent by the server, and acquiring a video bitstream according to the MPD and the minimum bit rate. The embodiments of the present invention are applicable to a case in which a user downloads video data by using a terminal.

    Encoding and Decoding Methods and Apparatuses
    120.
    发明申请
    Encoding and Decoding Methods and Apparatuses 审中-公开
    编码和解码方法和装置

    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。

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