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    UNIFY INTRA BLOCK COPY AND INTER PREDICTION
    21.
    发明专利
    UNIFY INTRA BLOCK COPY AND INTER PREDICTION 未知

    公开(公告)号：CA2956082A1

    公开(公告)日：2016-02-25

    申请号：CA2956082

    申请日：2015-08-21

    Applicant: QUALCOMM INC

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

    IPC: H04N19/523 ,  H04N19/593

    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.

    INTRA PREDICTION FROM A PREDICTIVE BLOCK USING DISPLACEMENT VECTORS
    22.
    发明申请
    INTRA PREDICTION FROM A PREDICTIVE BLOCK USING DISPLACEMENT VECTORS 审中-公开
    使用位移矢量预测块的预测

    公开(公告)号：WO2014205339A3

    公开(公告)日：2015-02-26

    申请号：PCT/US2014043397

    申请日：2014-06-20

    Applicant: QUALCOMM INC

    Inventor： GUO LIWEI ,  PANG CHAO ,  KIM WOO-SHIK ,  PU WEI ,  SOLE ROJALS JOEL ,  JOSHI RAJAN LAXMAN ,  KARCZEWICZ MARTA

    IPC: H04N19/463 ,  H04N19/593

    CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/154 ,  H04N19/176 ,  H04N19/186 ,  H04N19/513 ,  H04N19/523 ,  H04N19/55 ,  H04N19/563 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82

    Abstract: Techniques coding video data, including a mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture, may include determining a predictive block of video data for the current block of video data, wherein the predictive block of video data is a reconstructed block of video data within the same picture as the current block of video data. A two-dimensional vector, which may be used by a video coder to identify the predictive block of video data, includes a horizontal displacement component and a vertical displacement component relative to the current block of video data. The mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture may be referred to as Intra Block Copy or Intra Motion Compensation.

    Abstract translation: 编码视频数据的技术，包括用于从同一图像内的视频数据的预测块对视频数据块进行帧内预测的模式，可以包括确定用于当前视频数据块的视频数据的预测块，其中视频预测块 数据是与当前视频数据块相同的图像内的视频数据的重建块。 可以由视频编码器使用以识别视频数据的预测块的二维向量包括相对于当前视频数据块的水平位移分量和垂直位移分量。 用于对来自同一图像内的视频数据的预测块的视频数据块进行帧内预测的模式可以被称为帧内复制或帧内补偿。

    SYSTEMS AND METHODS FOR INTRA-BLOCK COPY
    23.
    发明专利
    SYSTEMS AND METHODS FOR INTRA-BLOCK COPY 未知

    公开(公告)号：CA2952457C

    公开(公告)日：2022-12-13

    申请号：CA2952457

    申请日：2015-06-19

    Applicant: QUALCOMM INC

    Inventor： PANG CHAO ,  RAPAKA KRISHNAKANTH ,  LI XIANG ,  SOLE ROJALS JOEL ,  HSIEH CHENG-TEH ,  KARCZEWICZ MARTA

    IPC: H04N19/159 ,  H04N19/176 ,  H04N19/593

    Abstract: Techniques and systems are provided for encoding and decoding video data. For example, a method of encoding video data includes obtaining video data at an encoder, and determining to perform intra-picture prediction on the video data, using intra-block copy prediction, to generate the plurality of encoded video pictures. The method also includes performing the intra-picture prediction on the video data using the intra-block copy prediction, and, in response to determining to perform the intra-picture prediction on the video data using the intra-block copy prediction, disabling at least one of inter-picture bi-prediction or inter-picture uni-prediction for the plurality of encoded video pictures. The method also includes generating the plurality of encoded video pictures based on the received video data according to the performed intra-block copy prediction.

    UNIFY INTRA BLOCK COPY AND INTER PREDICTION
    26.
    发明专利
    UNIFY INTRA BLOCK COPY AND INTER PREDICTION 未知

    公开(公告)号：MY183928A

    公开(公告)日：2021-03-17

    申请号：MYPI2017700110

    申请日：2015-08-21

    Applicant: QUALCOMM INC

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

    Abstract: A video coder (20) may include (200) a current picture and a reference picture in a reference picture list. The video coder may determine (202) 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 (204) a temporal motion vector predictor from the co-located block and may determine (206) the temporal motion vector predictor has sub-pixel precision. The video coder may right-shift (208) the temporal motion vector predictor determined to have sub-pixel precision. In addition, the video coder may determine (210), based on the right-shifted temporal motion vector predictor, a predictive block within the current picture.

    UNIFY INTRA BLOCK COPY AND INTER PREDICTION
    28.
    发明专利
    UNIFY INTRA BLOCK COPY AND INTER PREDICTION 未知

    公开(公告)号：ZA201701288B

    公开(公告)日：2020-11-25

    申请号：ZA201701288

    申请日：2017-02-21

    Applicant: QUALCOMM INC

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

    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.

    previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo
    30.
    发明专利
    previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo 未知

    公开(公告)号：BR112018010664A2

    公开(公告)日：2018-11-13

    申请号：BR112018010664

    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: H04N19/119 ,  H04N19/132 ,  H04N19/186 ,  H04N19/593

    Abstract: um codificador de vídeo reconstrói um conjunto de amostras de referência de croma e reconstrói amostras de luma de uma unidade de previsão não quadrada. adicionalmente, o codificador de vídeo produz sub-amostras do conjunto de amostras de referência de luma de tal modo que um número total das amostras de referência de luma que são vizinhas a um lado mais longo do bloco de previsão não quadrado que é o mesmo que um número total das amostras de referência de luma que são vizinhas a um lado mais curto do bloco de previsão não quadrado. o codificador de vídeo determina um parâmetro de modelo linear (lm) com base na fórmula i, onde i é um número total de amostras de referência no conjunto de amostras de referência de luma, xi é uma amostra de referência de luma no conjunto de referência de luma, yi é uma amostra de referência de croma no conjunto de amostras de referência de croma. o codificador de vídeo utiliza o parâmetro lm em um processo para determinar valores de amostras de croma do bloco de previsão não quadrado.

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