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    INTRA MOTION COMPENSATION EXTENSIONS
    11.
    发明专利
    INTRA MOTION COMPENSATION EXTENSIONS 未知

    公开(公告)号：CA2913804A1

    公开(公告)日：2015-01-15

    申请号：CA2913804

    申请日：2014-07-11

    Applicant: QUALCOMM INC

    Inventor： PANG CHAO ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

    IPC: H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/51

    Abstract: A video coder comprising one or more processors determines that a current block of the video data is encoded using an intra motion compensation (IMC) mode, wherein the current block is in a frame of video; determines an offset vector for a first color component of the current block of the video data; locates, in the frame of video, a reference block of the first color component using the offset vector; modifies the offset vector to generate a modified offset vector in response to the offset vector pointing to a sub-pixel position for a second color component of the current block of video data; locates, in the frame of video, a reference block for the second color component using the modified offset vector; and codes the current block based on the reference block for the first color component and the reference block for the second color component.

    Intra block copy prediction restrictions for parallel processing
    14.
    发明专利
    Intra block copy prediction restrictions for parallel processing 未知

    公开(公告)号：AU2015330676B2

    公开(公告)日：2019-09-26

    申请号：AU2015330676

    申请日：2015-10-09

    Applicant: QUALCOMM INC

    Inventor： RAPAKA KRISHNAKANTH ,  PANG CHAO ,  SEREGIN VADIM ,  KARCZEWICZ MARTA

    IPC: H04N19/11 ,  H04N19/157 ,  H04N19/174 ,  H04N19/436 ,  H04N19/55 ,  H04N19/593

    Abstract: A video decoder can be configured to, for one or more blocks coded with wavefront parallel processing enabled, determine a coding tree block (CTB) delay, wherein the CTB delay identifies a delay between when a first row of CTBs starts being decoded and when a second row of CTBs below the first row of CTBs starts being decoded; for a current block of video data coded in an intra-block copy (IBC) mode and coded with wavefront parallel processing disabled, determine an IBC prediction region for the current block within a picture that includes the current block based on the CTB delay that was determined for the one or more blocks coded with wavefront parallel processing enabled; identify, from within the determined IBC prediction region for the current block, a predictive block for the current block; and IBC decode the current block based on the predictive block.

    modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo?
    15.
    发明专利
    modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo? 未知

    公开(公告)号：BR112018010660A8

    公开(公告)日：2019-02-26

    申请号：BR112018010660

    申请日：2016-11-23

    Applicant: QUALCOMM INC

    Inventor： GUOXIN JIN ,  JIANLE CHEN ,  LI ZHANG ,  MARTA KARCZEWICZ ,  PANG CHAO ,  WEI-JUNG CHIEN ,  XIANG LI ,  XIN ZHAO

    IPC: G06F17/14 ,  H04N19/119 ,  H04N19/42 ,  H04N19/60 ,  H04N19/625

    Abstract: como parte de um processo de codificação de dados de vídeo, um codificador de vídeo aplica uma transformada a um bloco residual não-quadrado para gerar um bloco de coeficientes de transformada. adicionalmente, o codificador de vídeomodifica os coeficientes de transformada de modo que cada respectivo coeficiente de transformada do bloco de coeficientes de transformada se baseie no respectivo coeficiente de transformada desquantizado multiplicado por um fator v2 ou uma aproximação de v2. como parte de um processo de decodificação de dados de vídeo, um decodificador de vídeo aplica, pelo decodificador de vídeo, um processo de desquantização para transformar os coeficientes de um bloco de transformada não-quadrado. o decodificador de vídeo modifica os coeficientes de transformada desquantizados de modo que cada respectivo coeficiente de transformada desquantizado dos coeficientes de transformada desquantizados se baseie no respectivo coeficiente de transformada desquantizado dividido por um fator v2 ou uma aproximação de v2.

    Search region determination for inter coding within a particular picture of video data
    18.
    发明专利
    Search region determination for inter coding within a particular picture of video data 未知

    公开(公告)号：AU2016261848A1

    公开(公告)日：2017-11-02

    申请号：AU2016261848

    申请日：2016-05-11

    Applicant: QUALCOMM INC

    Inventor： PANG CHAO ,  RAPAKA KRISHNAKANTH ,  SEREGIN VADIM ,  KARCZEWICZ MARTA ,  JOSHI RAJAN LAXMAN

    IPC: H04N19/523 ,  H04N19/57

    Abstract: An example method of encoding video data includes determining a resolution that will be used for a motion vector that identifies a predictor block in a current picture of video data for a current block in the current picture of video data; determining, based on the determined resolution, a search region for the current block such that a size of the search region is smaller where the resolution is fractional-pixel than where the resolution is integer-pixel; selecting, from within the search region, a predictor block for the current block; determining the motion vector that identifies the selected predictor block for the current block; and encoding, in a coded video bitstream, a representation of the motion vector.

    Copia intrabloque e inter-predicción unificadas
    19.
    发明专利
    Copia intrabloque e inter-predicción unificadas 未知

    公开(公告)号：CO2017001556A2

    公开(公告)日：2017-05-31

    申请号：CO2017001556

    申请日：2017-02-17

    Applicant: QUALCOMM INC

    Inventor： WANG YE-KUI ,  PANG CHAO ,  RAPAKA KRISHNAKANTH ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

    IPC: H04N19/52 ,  H04N19/159 ,  H04N19/176 ,  H04N19/523 ,  H04N19/593 ,  H04N19/70

    Abstract: Un codificador de video puede incluir una imagen actual y una imagen de referencia en un listado de imágenes de referencia. El codificador de video puede determinar un bloque colocalizado de la imagen de referencia. El bloque colocalizado se colocaliza con un bloque actual de la imagen actual. Además, el codificador de video deriva un predictor del vector de movimiento temporal del bloque colocalizado y puede determinar si el predictor del vector de movimiento temporal tiene precisión de subpíxel. El codificador de video puede desplazar a la derecha el predictor del vector de movimiento temporal determinado que tiene precisión de subpíxel. Además, el codificador de video puede determinar, sobre la base del predictor del vector de movimiento temporal desplazado a la derecha, un bloque predictivo dentro de la imagen actual.

    UNIFY INTRA BLOCK COPY AND INTER PREDICTION
    20.
    发明专利
    UNIFY INTRA BLOCK COPY AND INTER PREDICTION 未知

    公开(公告)号：PH12017500141B1

    公开(公告)日：2017-05-29

    申请号：PH12017500141

    申请日：2017-01-23

    Applicant: QUALCOMM INC

    Inventor： PANG CHAO ,  RAPAKA KRISHNAKANTH ,  WANG YE-KUI ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

    IPC: H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/523 ,  H04N19/593 ,  H04N19/70

    Abstract: A video coder may include a current picture and a reference picture in a reference picture list. The video coder may determine a co-located block of the reference picture. The co-located block is co-located with a current block of the current picture. Furthermore, the video coder derives a temporal motion vector predictor from the co-located block and may determine the temporal motion vector predictor has sub-pixel precision. The video coder may right-shift the temporal motion vector predictor determined to have sub-pixel precision. In addition, the video coder may determine, based on the right-shifted temporal motion vector predictor, a predictive block within the current picture.

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