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    Intra prediction in video coding
    4.
    发明授权
    Intra prediction in video coding 有权

    公开(公告)号：US10764587B2

    公开(公告)日：2020-09-01

    申请号：US16020179

    申请日：2018-06-27

    申请人： QUALCOMM Incorporated

    发明人： Kai Zhang ,  Jianle Chen ,  Xin Zhao ,  Marta Karczewicz

    IPC分类号： H04N19/159 ,  H04N19/593 ,  H04N19/109 ,  H04N19/11 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

    摘要： An apparatus configured to encode or decode video data that includes a memory configured to store at least one reconstructed sample of video data and at least one processor, in communication with the memory, that is configured to identify at least one reconstructed sample, determine at least one extended angular intra prediction mode to use for intra prediction of at least one sample of a current block, intra predict, using the at least one extended angular intra prediction mode, at least one sample of the current block based on the at least one reconstructed sample, extended angular intra prediction modes including angular intra prediction modes other than angular prediction modes between horizontal −45 degrees and vertical −45 degrees, and encode or decode the current block based on the at least one predicted sample.

    Geometry-based priority for the construction of candidate lists
    5.
    发明授权
    Geometry-based priority for the construction of candidate lists 有权

    公开(公告)号：US10721489B2

    公开(公告)日：2020-07-21

    申请号：US15695606

    申请日：2017-09-05

    申请人： QUALCOMM Incorporated

    发明人： Yi-Wen Chen ,  Wei-Jung Chien ,  Li Zhang ,  Kai Zhang ,  Marta Karczewicz

    IPC分类号： H04N19/52 ,  H04N19/13 ,  H04N19/176 ,  H04N19/139 ,  H04N19/174 ,  H04N19/597 ,  H04N19/189

    摘要： In one example, a device includes a memory configured to store the video data; and one or more processors implemented in circuitry and configured to determine a plurality of distances between a first representative point of a current block of video data and a plurality of second representative points of neighboring blocks to the current block, add one or more of the neighboring blocks as candidates to a candidate list of the current block in an order according to the distances between the first representative point and the second representative points, and code the current block using the candidate list. The candidate list may be, for example, a merge list, an AMVP list, or a most probable mode list. Alternatively, the candidate list may be a list of candidates from which to determine context information for context-adaptive binary arithmetic coding (CABAC).

    Motion information propagation in video coding
    6.
    发明授权
    Motion information propagation in video coding 有权

    公开(公告)号：US10687077B2

    公开(公告)日：2020-06-16

    申请号：US16011340

    申请日：2018-06-18

    申请人： QUALCOMM Incorporated

    发明人： Kai Zhang ,  Xiang Li ,  Jianle Chen ,  Li Zhang ,  Marta Karczewicz

    IPC分类号： H04N19/56 ,  H04N19/176 ,  H04N19/52 ,  H04N19/196 ,  H04N19/159 ,  H04N19/109 ,  H04N19/172

    摘要： Techniques are directed to a device for decoding a current block of video data in a current coding picture. The device may include a memory configured to store video data. The device may also include a processor configured to generate a first prediction block for the current block of the video data in the current picture according to an intra-prediction mode and generate a second prediction block for the current block of the video data in the current picture the picture according to an inter-prediction mode. The processor may be configured to generate motion information propagated from the second prediction block of the picture to the first prediction block, and use the motion information to obtain a final prediction block, then generate a reconstructed block based on a combination of the final prediction block and a residual block.

    INTRA PREDICTION TECHNIQUES FOR VIDEO CODING
    10.
    发明申请
    INTRA PREDICTION TECHNIQUES FOR VIDEO CODING 审中-公开

    公开(公告)号：US20180199062A1

    公开(公告)日：2018-07-12

    申请号：US15866287

    申请日：2018-01-09

    申请人： QUALCOMM Incorporated

    发明人： Kai Zhang ,  Jianle Chen ,  Vadim Seregin ,  Hsiao-Chiang Chuang ,  Xiang Li ,  Li Zhang ,  Cheng-Teh Hsieh ,  Marta Karczewicz

    IPC分类号： H04N19/593 ,  H04N19/59 ,  H04N19/13 ,  H04N19/96

    摘要： A video decoder determines a current block of a current picture of video data has a size of P×Q, wherein P is a first value corresponding to a width of the current block and Q is a second value corresponding to a height of the current block, wherein P is not equal to Q, wherein the current block includes a short side and a long side, and wherein the first value added to the second value does not equal a value that is a power of 2; decodes the current block of video data using intra DC mode prediction, wherein decoding the current block of video data using intra DC mode prediction comprises performing a shift operation to calculate a DC value and generating a prediction block for the current block of video data using the calculated DC value; and outputs a decoded version of the current picture.