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    ADAPTIVE BILATERAL MATCHING FOR DECODER SIDE MOTION VECTOR REFINEMENT
    2.
    发明申请
    ADAPTIVE BILATERAL MATCHING FOR DECODER SIDE MOTION VECTOR REFINEMENT 有权

    公开(公告)号：US20220417522A1

    公开(公告)日：2022-12-29

    申请号：US17847942

    申请日：2022-06-23

    Applicant: QUALCOMM Incorporated

    Inventor： Han HUANG ,  Vadim SEREGIN ,  Wei-Jung CHIEN ,  Zhi ZHANG ,  Chun-Chi CHEN ,  Marta KARCZEWICZ

    IPC: H04N19/137 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70

    Abstract: Systems and techniques are provided for processing video data. For example, the systems and techniques can include obtaining a current picture of video data and obtaining reference pictures for the current picture from the video data. A merge mode candidate can be determined for the current picture. First and second motion vectors can be identified for the merge mode candidate. A motion vector search strategy can be selected for the merge mode candidate from a plurality of motion vector search strategies. The selected motion vector search strategy can be associated with one or more constraints corresponding to at least one of the first motion vector or the second motion vector. The selected motion vector search strategy can be used to determine refined motion vectors based on the first motion vector, the second motion vector, and the reference pictures. The merge mode candidate can be processed using the refined motion vectors.

    INTRA VIDEO CODING USING A DECOUPLED TREE STRUCTURE
    3.
    发明申请
    INTRA VIDEO CODING USING A DECOUPLED TREE STRUCTURE 审中-公开

    公开(公告)号：US20190313130A1

    公开(公告)日：2019-10-10

    申请号：US16452315

    申请日：2019-06-25

    Applicant: QUALCOMM Incorporated

    Inventor： Li ZHANG ,  Wei-Jung CHIEN ,  Jianle CHEN ,  Xin ZHAO ,  Marta KARCZEWICZ

    IPC: H04N19/96 ,  H04N19/186 ,  H04N19/463 ,  H04N19/11 ,  H04N19/593 ,  H04N19/46 ,  H04N19/70

    Abstract: An example device includes a memory and processing circuitry in communication with the memory. The processing circuitry of a device is configured to form a most probable mode (MPM) candidate list for a chroma block of the video data stored to the memory, such that the MPM candidate list includes one or more derived modes (DMs) associated with a luma block of the video data associated with the chroma block, and a plurality of luma prediction modes that can be used for coding luminance components of the video data. The processing circuitry is further configured to select a mode from the MPM candidate list, and to code the chroma block according to the mode selected from the MPM candidate list.

    INTRA PREDICTION MODE DECISION WITH REDUCED STORAGE
    5.
    发明申请
    INTRA PREDICTION MODE DECISION WITH REDUCED STORAGE 有权
    内部预测模式决策与减少存储

    公开(公告)号：US20140219349A1

    公开(公告)日：2014-08-07

    申请号：US13760750

    申请日：2013-02-06

    Applicant: QUALCOMM INCORPORATED

    Inventor： Wei-Jung CHIEN ,  Xianglin WANG ,  Marta KARCZEWICZ

    IPC: H04N7/26

    CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/433 ,  H04N19/436

    Abstract: In general, techniques are described for reducing the space required to store rate distortion values when selecting from multiple, different prediction modes. A video coding device comprising a processor may perform the techniques. The processor may determine first and second sets of intra-prediction modes for a current block of video data. The first and second sets of intra-prediction modes may include less intra-prediction modes, collectively, than a total number of intra-prediction modes. The processor may compute an approximate cost for each intra-prediction mode included in the first and second sets of intra-prediction modes. The processor may store the approximate cost for each intra-prediction mode identified in the first and second sets of intra-prediction modes to a memory. The processor may perform intra-prediction to encode the current block using a mode identified in at least one of the first or second set.

    Abstract translation: 通常，描述了当从多个不同的预测模式进行选择时，减少存储速率失真值所需的空间的技术。 包括处理器的视频编码装置可以执行这些技术。 处理器可以确定当前视频数据块的第一组和第二组帧内预测模式。 第一组和第二组帧内预测模式可以包括比帧内预测模式的总数更少的帧内预测模式。 处理器可以计算包括在第一和第二组帧内预测模式中的每个帧内预测模式的近似成本。 处理器可以将在第一和第二组帧内预测模式中识别的每个帧内预测模式的近似成本存储到存储器。 处理器可以执行帧内预测，​​以使用在第一或第二组中的至少一个中识别的模式对当前块进行编码。

    GROUP FLAG IN TRANSFORM COEFFICIENT CODING FOR VIDEO CODING
    10.
    发明申请
    GROUP FLAG IN TRANSFORM COEFFICIENT CODING FOR VIDEO CODING 有权
    用于视频编码的变换系数编码中的组标志

    公开(公告)号：US20130272414A1

    公开(公告)日：2013-10-17

    申请号：US13861319

    申请日：2013-04-11

    Applicant: QUALCOMM INCORPORATED

    Inventor： Joel SOLE ROJALS ,  Rajan Laxman JOSHI ,  Wei-Jung CHIEN ,  Jianle CHEN ,  Vadim SEREGIN ,  Marta KARCZEWICZ

    IPC: H04N7/50

    CPC classification number: H04N19/615 ,  H04N19/13 ,  H04N19/14 ,  H04N19/18 ,  H04N19/70

    Abstract: A method of decoding data indicative of a subset of transform coefficients is described. The coefficients are indicative of a block of video data. The method may include determining that no transform coefficient in the subset of transform coefficients has an absolute value greater than one, and, based on the determining, skipping one or more decoding passes on the subset of transform coefficients, the decoding passes relating to decoding level information associated with the subset of transform coefficients.

    Abstract translation: 描述了一种解码表示变换系数子集的数据的方法。 系数表示视频数据块。 该方法可以包括确定变换系数的子集中的变换系数不具有大于1的绝对值，并且基于确定，跳过变换系数子集上的一个或多个解码通过，与解码级相关的解码通过 与变换系数子集相关联的信息。

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