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    METHOD AND APPARATUS OF HIGH-LEVEL SYNTAX FOR SMOOTHING INTRA-PREDICTION TECHNIQUES
    62.
    发明申请
    METHOD AND APPARATUS OF HIGH-LEVEL SYNTAX FOR SMOOTHING INTRA-PREDICTION TECHNIQUES 有权

    公开(公告)号：US20230087640A1

    公开(公告)日：2023-03-23

    申请号：US18058139

    申请日：2022-11-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Alexey Konstantinovich FILIPPOV ,  Vasily Alexeevich RUFITSKIY ,  Elena Alexandrovna ALSHINA

    IPC: H04N19/117 ,  H04N19/82 ,  H04N19/159 ,  H04N19/186 ,  H04N19/176

    Abstract: A method comprising: signaling a set of low-level indicators for a predicted block, wherein each of the indicators of the set enables or disables an intra prediction smoothing mechanism for the predicted block; signaling a first set of high-level indicators on a slice-level or a higher level, wherein each of the high-level indicators of the first set determines signaling for an intra prediction smoothing mechanism which is enabled or disabled by an indicator of the set of low-level indicators; and signaling a second set of high-level indicators, wherein each of the high-level indicators of the second set determines the presence of at least one of the corresponding high-level indicators of the first set, and wherein the values of corresponding high-level indicators of the first set are inferred to be zero when the value signaled by high-level indicator of the second set is zero.

    METHOD AND APPARATUS OF COMBINED INTRA-INTER PREDICTION USING MATRIX-BASED INTRA PREDICTION
    65.
    发明申请
    METHOD AND APPARATUS OF COMBINED INTRA-INTER PREDICTION USING MATRIX-BASED INTRA PREDICTION 有权

    公开(公告)号：US20220256141A1

    公开(公告)日：2022-08-11

    申请号：US17703661

    申请日：2022-03-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Alexey Konstantinovich FILIPPOV ,  Vasily Alexeevich RUFITSKIY ,  Elena Alexandrovna ALSHINA

    IPC: H04N19/105 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176

    Abstract: It is provided a method for combined inter-intra prediction of a current block in video coding wherein combined intra-inter-prediction is used for providing a prediction block and wherein the weights for the intra- and inter-prediction blocks used to obtain the prediction block can be finely tuned. In particular, the method comprises determining prediction information for a neighboring block adjacent to the current block, the prediction information comprising a prediction mode used for prediction of the neighboring block, determining whether matrix-based intra prediction, MIP, is to be used for the prediction of the current block and predicting the current block as a weighted sum of an intra-predicted block and an inter-predicted block, wherein weights of the inter-predicted block and the intra-predicted block are determined based on the prediction information for the neighboring block and the determining whether MIP is to be used for the prediction of the current block.

    METHOD AND APPARATUS FOR INTRA PREDICTION
    70.
    发明申请
    METHOD AND APPARATUS FOR INTRA PREDICTION 有权

    公开(公告)号：US20210314576A1

    公开(公告)日：2021-10-07

    申请号：US17345449

    申请日：2021-06-11

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

    Abstract: Apparatuses and methods for intra predicting a block are described. The method of intra predicting a current block can include obtaining a predicted sample value from one or more reference sample values by using an intra prediction mode, obtaining at least one additional reference sample value in accordance with the intra prediction mode, and obtaining a thresholded additional reference sample value based on the additional reference sample value. The method can also include calculating an additional value from the thresholded additional reference sample value, multiplying the predicted sample value by a sample weighting factor, resulting in a weighted predicted sample value, adding the additional value to the weighted predicted sample value, resulting in a non-normalized predicted sample value, and normalizing the non-normalized predicted sample value, resulting in a normalized predicted sample values. The accuracy for the intra prediction is thus increased.

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