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    METHOD OF INTRA PREDICTING A BLOCK OF A PICTURE
    71.
    发明申请
    METHOD OF INTRA PREDICTING A BLOCK OF A PICTURE 有权

    公开(公告)号：US20210281835A1

    公开(公告)日：2021-09-09

    申请号：US17328352

    申请日：2021-05-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Alexey Konstantinovich FILIPPOV ,  Vasily Alexeevich RUFITSKIY ,  Jianle CHEN

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

    Abstract: The present disclosure provides methods and devices of intra predicting a block of a picture. The method comprises for a sample of the block: obtaining a predicted sample value from one or more reference sample values by performing intra-prediction using a DC intra-prediction mode; multiplying the predicted sample value by a sample weighting factor to produce a weighted predicted sample value; adding an additional value to the weighted predicted sample value to produce a non-normalized predicted sample value; and normalizing the non-normalized predicted sample value by an arithmetic right shift; wherein the sample weighting factor is ((2

    METHOD AND APPARATUS FOR INTERPOLATION FILTERING FOR INTRA- AND INTER-PREDICTION IN VIDEO CODING
    74.
    发明申请
    METHOD AND APPARATUS FOR INTERPOLATION FILTERING FOR INTRA- AND INTER-PREDICTION IN VIDEO CODING 有权

    公开(公告)号：US20210127110A1

    公开(公告)日：2021-04-29

    申请号：US17142170

    申请日：2021-01-05

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Alexey Konstantinovich FILIPPOV ,  Jianle Chen ,  Vasily Alexeevich RUFITSKIY

    IPC: H04N19/117 ,  H04N19/176

    Abstract: A method of video coding, wherein the method comprises inter-prediction processing of a first block, wherein the inter-prediction processing comprises subpixel interpolation filtering of samples of a reference block; intra-prediction processing of a second block, wherein the intra-prediction processing comprises subpixel interpolation filtering of reference samples; wherein the method further comprises selecting interpolation filter coefficients for the subpixel interpolation filtering based on a subpixel offset between integer reference sample positions and fractional reference samples' positions, wherein for the same subpixel offsets the same interpolation filter coefficients are selected for intra-prediction processing and inter-prediction processing.

    APPARATUS AND METHOD FOR CODING AN IMAGE
    75.
    发明申请
    APPARATUS AND METHOD FOR CODING AN IMAGE 有权

    公开(公告)号：US20210006779A1

    公开(公告)日：2021-01-07

    申请号：US17027157

    申请日：2020-09-21

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Alexey Konstantinovich FILIPPOV ,  Vasily Alexeevich RUFITSKIY

    IPC: H04N19/105 ,  H04N19/132 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

    Abstract: Methods, systems, devices, and apparatus for image processing are provided. In one aspect, a method includes: intra-predicting a block of an image based on reference samples of the image, the reference samples being arranged in one or more reference sample sets each including a coherent set of reference samples and including one or more reference samples adjoining the block; segmenting each of the one or more reference sample sets into a sequence of three or more subsets including a first subset, a last subset, and one or more intermediary subsets located therebetween; determining a weight value for each subset, weight values of the one or more intermediary subsets being lower than weight values of the first subset and the last subset; fitting a plane to the reference samples of the image using the determined weight values; and generating an intra-predicted block based on the plane.

    INTRA-PREDICTION APPARATUS FOR REMOVING A DIRECTIONAL INTRA-PREDICTION MODE FROM A SET OF PREDETERMINED DIRECTIONAL INTRA-PREDICTION MODES
    76.
    发明申请
    INTRA-PREDICTION APPARATUS FOR REMOVING A DIRECTIONAL INTRA-PREDICTION MODE FROM A SET OF PREDETERMINED DIRECTIONAL INTRA-PREDICTION MODES 审中-公开

    公开(公告)号：US20190313093A1

    公开(公告)日：2019-10-10

    申请号：US16449121

    申请日：2019-06-21

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Alexey Konstantinovich FILIPPOV ,  Vasily Alexeevich RUFITSKIY

    IPC: H04N19/11 ,  H04N19/176 ,  H04N19/139 ,  H04N19/105

    Abstract: The disclosure relates to an intra-prediction apparatus for removing a directional intra-prediction mode from a set of predetermined directional intra-prediction modes. The intra-prediction apparatus comprises a reference sample determining unit configured to select the directional intra-prediction mode from the set of predetermined directional intra-prediction modes, and to determine a plurality of available reference samples, a directional intra-prediction mode removing unit configured to remove the directional intra-prediction mode from the set of predetermined directional intra-prediction modes if a length (LRSlonger) associated with the plurality of available reference samples is smaller than a multiple of a length (Llonger) of a first side of the video coding block for obtaining a reduced set, and an intra-prediction unit configured to intra-predict pixel values of pixels of the rectangular video coding block on the basis of the reduced set. The intra-prediction apparatus can further comprise an area determining unit.

    DISTANCE WEIGHTED BI-DIRECTIONAL INTRA PREDICTION
    77.
    发明申请
    DISTANCE WEIGHTED BI-DIRECTIONAL INTRA PREDICTION 审中-公开

    公开(公告)号：US20190238837A1

    公开(公告)日：2019-08-01

    申请号：US16383205

    申请日：2019-04-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Alexey Konstantinovich FILIPPOV ,  Vasily Alexeevich RUFITSKIY

    IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/577

    CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/577 ,  H04N19/593 ,  H04N19/80

    Abstract: A current video coding block of a frame of a video signal is intra predicted. The current video coding block comprises a plurality of pixels and each pixel is associated with a pixel value. On the basis of a plurality of primary reference pixel values a plurality of secondary reference pixel values are generated. The plurality of primary reference pixel values are associated with a plurality of primary reference pixels located in neighboring video coding blocks of the current video coding block. Each of the secondary reference pixel values is generated on the basis of two or more of the primary reference pixel values. The pixel values of the pixels of the current video coding block are intra predicted on the basis of the plurality of primary reference pixel values and the plurality of secondary reference pixel values.

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