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    Low-complexity design for FRUC
    1.
    发明授权
    Low-complexity design for FRUC 有权

    公开(公告)号：US10785494B2

    公开(公告)日：2020-09-22

    申请号：US16131860

    申请日：2018-09-14

    Applicant: QUALCOMM Incorporated

    Inventor： Wei-Jung Chien ,  Hsiao-Chiang Chuang ,  Xiang Li ,  Jianle Chen ,  Li Zhang ,  Marta Karczewicz

    IPC: H04N19/44 ,  H04N19/513 ,  H04N19/577 ,  H04N19/176 ,  H04N19/523 ,  H04N19/56 ,  H04N19/52 ,  H04N19/573

    Abstract: A method of decoding video data includes constructing, by a video decoder implemented in processing circuitry, a candidate list of motion vector information for a portion of a current frame. The method includes receiving, by the video decoder, signaling information indicating starting motion vector information of the candidate list of motion vector information, the starting motion vector information indicating an initial position in a reference frame. The method includes refining, by the video decoder, based on one or more of bilateral matching or template matching, the starting motion vector information to determine refined motion vector information indicating a refined position in the reference frame that is within a search range from the initial position. The method includes generating, by the video decoder, a predictive block based on the refined motion vector information and decoding, by the video decoder, the current frame based on the predictive block.

    Affine motion prediction for video coding
    3.
    发明授权
    Affine motion prediction for video coding 有权

    公开(公告)号：US10560712B2

    公开(公告)日：2020-02-11

    申请号：US15587044

    申请日：2017-05-04

    Applicant: QUALCOMM Incorporated

    Inventor： Feng Zou ,  Jianle Chen ,  Marta Karczewicz ,  Xiang Li ,  Hsiao-Chiang Chuang ,  Wei-Jung Chien

    IPC: H04N19/513 ,  H04N19/124 ,  H04N19/18 ,  H04N19/44 ,  H04N19/567 ,  H04N19/91

    Abstract: An example method includes obtaining, for a current block of video data, values of motion vectors (MVs) of an affine motion model of a neighboring block of video data; deriving, from the values of the MVs of the affine motion model of the neighboring block, values of predictors for MVs of an affine motion model of the current block; decoding, from a video bitstream, a representation of differences between the values of the MVs of the affine motion model for the current block and the values of the predictors; determining the values of the MVs of the affine motion model for the current block from the values of the predictors and the decoded differences; determining, based on the determined values of the MVs of the affine motion model for the current block, a predictor block of video data; and reconstructing the current block based on the predictor block.

    LOW-COMPLEXITY DESIGN FOR FRUC
    4.
    发明申请
    LOW-COMPLEXITY DESIGN FOR FRUC 审中-公开

    公开(公告)号：US20190110058A1

    公开(公告)日：2019-04-11

    申请号：US16131860

    申请日：2018-09-14

    Applicant: QUALCOMM Incorporated

    Inventor： Wei-Jung Chien ,  Hsiao-Chiang Chuang ,  Xiang Li ,  Jianle Chen ,  Li Zhang ,  Marta Karczewicz

    IPC: H04N19/44 ,  H04N19/513 ,  H04N19/176 ,  H04N19/573 ,  H04N19/577

    Abstract: A method of decoding video data includes constructing, by a video decoder implemented in processing circuitry, a candidate list of motion vector information for a portion of a current frame. The method includes receiving, by the video decoder, signaling information indicating starting motion vector information of the candidate list of motion vector information, the starting motion vector information indicating an initial position in a reference frame. The method includes refining, by the video decoder, based on one or more of bilateral matching or template matching, the starting motion vector information to determine refined motion vector information indicating a refined position in the reference frame that is within a search range from the initial position. The method includes generating, by the video decoder, a predictive block based on the refined motion vector information and decoding, by the video decoder, the current frame based on the predictive block.

    INTRA PREDICTION TECHNIQUES FOR VIDEO CODING
    5.
    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

    Applicant: QUALCOMM Incorporated

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

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

    Abstract: 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.

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