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    SOBREMUESTREO EN INTRAPREDICCIÓN PONDERADA LINEAL AFÍN
    42.
    发明专利
    SOBREMUESTREO EN INTRAPREDICCIÓN PONDERADA LINEAL AFÍN 未知

    公开(公告)号：AR119740A1

    公开(公告)日：2022-01-05

    申请号：ARP200101342

    申请日：2020-05-08

    Applicant: QUALCOMM INC

    Inventor： RAMASUBRAMONIAN ADARSH KRISHNAN ,  KARCZEWICZ MARTA ,  PHAM VAN LUONG ,  VAN DER AUWERA GEERT

    IPC: H04N19/593 ,  H04N19/85

    Abstract: Un dispositivo para decodificar datos de video determina que un bloque actual de datos de video está codificado en un modo de intrapredicción ponderada lineal afín (ALWIP); deriva, con base en un conjunto de muestras vecinas de borde izquierdo del bloque actual y un conjunto de muestras vecinas de borde superior del bloque actual, un subconjunto de muestras de borde izquierdo y un subconjunto de muestras de borde superior; aplica un modelo afín al subconjunto de muestras de borde izquierdo y al subconjunto de muestras de borde superior para generar un bloque intermedio de muestras intermedias; filtra las muestras intermedias para generar un bloque de predicción final; decodifica el bloque actual de datos de video basado en el bloque de predicción final.

    INTER-INTRA PREDICTION MODE FOR VIDEO DATA
    46.
    发明专利
    INTER-INTRA PREDICTION MODE FOR VIDEO DATA 未知

    公开(公告)号：SG11202107745VA

    公开(公告)日：2021-08-30

    申请号：SG11202107745V

    申请日：2020-02-05

    Applicant: QUALCOMM INC

    Inventor： PHAM VAN LUONG ,  VAN DER AUWERA GEERT ,  RAMASUBRAMONIAN ADARSH KRISHNAN ,  KARCZEWICZ MARTA

    IPC: H04N19/107 ,  H04N19/159 ,  H04N19/186

    Abstract: An example device for coding (encoding or decoding) video data includes a memory for storing video data and one or more processors implemented in circuitry and configured to form an inter-prediction block for a current chrominance block of the video data; form an intra-prediction block for the current chrominance block of the video data; determine a number of neighboring blocks to a luminance block corresponding to the current chrominance block that are intra-prediction coded; determine a first weight and a second weight according to the number of neighboring blocks that are intra-prediction coded; apply the first weight to the inter-prediction block and the second weight to the intra-prediction block; combine the first weighted inter-prediction block and the second weighted intra-prediction block to form a prediction block for the current chrominance block; and code the current chrominance block using the prediction block.

    MATRIX COMBINATION FOR MATRIX-WEIGHTED INTRA PREDICTION IN VIDEO CODING
    47.
    发明专利
    MATRIX COMBINATION FOR MATRIX-WEIGHTED INTRA PREDICTION IN VIDEO CODING 未知

    公开(公告)号：CA3150554A1

    公开(公告)日：2021-03-25

    申请号：CA3150554

    申请日：2020-09-18

    Applicant: QUALCOMM INC

    Inventor： BIATEK THIBAUD LAURENT ,  RAMASUBRAMONIAN ADARSH KRISHNAN ,  VAN DER AUWERA GEERT ,  KARCZEWICZ MARTA

    IPC: H04N19/59 ,  H04N19/593 ,  H04N19/70

    Abstract: A video decoder obtains a transpose flag from the bitstream. The video decoder determines an input vector based on neighboring samples for a current block of the video data. The transpose flag indicates whether the input vector is transposed. Additionally, the video decoder determines a prediction signal. Determining the prediction signal includes multiplying a MIP matrix by the input vector. The prediction signal includes values corresponding to a first set of locations in a prediction block for the current block and the MIP matrix corresponds to the MIP mode index. The video decoder applies an interpolation process to the prediction signal to determine values corresponding to a second set of locations in the prediction block for the current block.

    Position dependent intra prediction combination with wide angle intra prediction
    49.
    发明专利
    Position dependent intra prediction combination with wide angle intra prediction 未知

    公开(公告)号：AU2019306205A1

    公开(公告)日：2021-01-28

    申请号：AU2019306205

    申请日：2019-07-15

    Applicant: QUALCOMM INC

    Inventor： VAN DER AUWERA GEERT ,  RAMASUBRAMONIAN ADARSH KRISHNAN ,  KARCZEWICZ MARTA

    IPC: H04N19/11 ,  H04N19/105 ,  H04N19/119 ,  H04N19/167 ,  H04N19/176 ,  H04N19/593

    Abstract: Techniques are described using Position Dependent Intra Prediction Combination (PDPC) with wide angle intra prediction. For example, a size of the current block of video data can be determined. Based on the size, a wide angle intra-prediction mode can be determined for the current block. A prediction block for the current block can be determined using the wide angle intra-prediction mode. A prediction sample from the prediction block can be modified to generate a modified prediction sample using PDPC, which can include determining one or more reference samples that are external to the current block based on the wide angle intra-prediction mode, and modifying the prediction sample to generate the modified prediction sample based on the determined one or more reference samples.

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