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    INTRA BLOCK COPY PREDICTION RESTRICTIONS IN VIDEO CODING
    1.
    发明申请
    INTRA BLOCK COPY PREDICTION RESTRICTIONS IN VIDEO CODING 有权

    公开(公告)号：US20220377350A1

    公开(公告)日：2022-11-24

    申请号：US17817128

    申请日：2022-08-03

    Applicant: QUALCOMM Incorporated

    Inventor： Vadim Seregin ,  Luong Pham Van ,  Wei-Jung Chien ,  Cheng-Teh Hsieh ,  Marta Karczewicz

    IPC: H04N19/159 ,  H04N19/96 ,  H04N19/176 ,  H04N19/105

    Abstract: An example method includes determining, for each respective coding block of a plurality of coding blocks of a current coding tree unit (CTU) of video data in a current picture of video data, a respective search area of a plurality of respective search areas, wherein at least one of the plurality of search areas includes samples of the current picture located outside of the current CTU, and wherein at least one of the plurality of search areas does not include samples of the current picture located outside of the current CTU; selecting, for each respective coding block and from within the respective search area for the respective coding block, a respective predictor block of a plurality of predictor blocks; and reconstructing samples of each respective coding block based on samples included in a corresponding predictor block in the plurality of predictor blocks.

    Low-frequency non-separable transform (LFNST) simplifications
    2.
    发明授权
    Low-frequency non-separable transform (LFNST) simplifications 有权

    公开(公告)号：US11206400B2

    公开(公告)日：2021-12-21

    申请号：US17029416

    申请日：2020-09-23

    Applicant: QUALCOMM Incorporated

    Inventor： Hilmi Enes Egilmez ,  Cheng-Teh Hsieh ,  Vadim Seregin ,  Marta Karczewicz

    IPC: H04N19/119 ,  H04N19/96 ,  H04N19/186 ,  H04N19/176

    Abstract: An example method of decoding video data includes receiving encoded data for a current block. The method further includes determining whether single tree partitioning is enabled for the current block and decoding the encoded data to generate luma transform coefficients for the current block and chroma transform coefficients for the current block. The method further includes, in response to determining that the single tree partitioning is enabled for the current block, applying an inverse low-frequency non-separable transform (LFNST) to only the luma transform coefficients for the current block to produce a residual block for the current block. The method further includes reconstructing the current block of the video data using the residual block and a prediction block for the current block.

    SIMPLIFIED PALETTE PREDICTOR UPDATE FOR VIDEO CODING
    3.
    发明申请
    SIMPLIFIED PALETTE PREDICTOR UPDATE FOR VIDEO CODING 有权

    公开(公告)号：US20210092393A1

    公开(公告)日：2021-03-25

    申请号：US17029767

    申请日：2020-09-23

    Applicant: QUALCOMM Incorporated

    Inventor： Yung-Hsuan Chao ,  Cheng-Teh Hsieh ,  Marta Karczewicz

    IPC: H04N19/132 ,  H04N19/146 ,  H04N19/186 ,  H04N19/176

    Abstract: An example device includes a memory configured to store at least a portion of an encoded video bitstream; and one or more processors that are implemented in circuitry and configured to: determine, based on a parameter of a first block of video data, a maximum number of entries to be used for palette-mode coding of the current block; generate, based on the determined maximum number of entries and based on a palette predictor, a palette for the first block of video data, the palette including one or more entries each including a palette index that is associated with a color value; decode, from the encoded video bitstream and for the first block of video data, index values for samples of the first block that identify entries in the palette; and reconstruct, based on the index values, the samples of the first block.

    PARTIAL RECONSTRUCTION BASED TEMPLATE MATCHING FOR MOTION VECTOR DERIVATION
    5.
    发明申请
    PARTIAL RECONSTRUCTION BASED TEMPLATE MATCHING FOR MOTION VECTOR DERIVATION 审中-公开

    公开(公告)号：US20190014342A1

    公开(公告)日：2019-01-10

    申请号：US16024032

    申请日：2018-06-29

    Applicant: QUALCOMM Incorporated

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

    IPC: H04N19/577 ,  H04N19/44 ,  H04N19/82 ,  H04N19/105 ,  H04N19/583

    Abstract: A method of decoding video data includes determining, by a video decoder, a neighboring block in a current frame is inter coded. The method includes, in response to determining the neighboring block is inter coded, determining, by the video decoder, a template for a current block in the current frame based on a partial reconstruction of the neighboring block. The method includes determining, by the video decoder, a reference block in a reference frame corresponding to the template for the current block and determining, by the video decoder, motion vector information for the current frame based on the reference block and the template. The method includes generating, by the video decoder, a predictive block for the current block of video data based on the motion vector information and decoding, by the video decoder, the current block of video data based on the predictive block.

    INTERLEAVE BLOCK PROCESSING ORDERING FOR VIDEO DATA CODING
    10.
    发明申请
    INTERLEAVE BLOCK PROCESSING ORDERING FOR VIDEO DATA CODING 有权
    用于视频数据编码的交叉块处理订购

    公开(公告)号：US20130301712A1

    公开(公告)日：2013-11-14

    申请号：US13856285

    申请日：2013-04-03

    Applicant: QUALCOMM INCORPORATED

    Inventor： Cheng-Teh Hsieh ,  Sumit Mohan ,  Ling Feng Huang ,  Feng Ge ,  Stephen Cheung

    IPC: H04N7/30

    CPC classification number: H04N19/60 ,  H04N19/129 ,  H04N19/156 ,  H04N19/176 ,  H04N19/186 ,  H04N19/436

    Abstract: Systems and methods for interleaving video sub-blocks in video coding are described herein. In one aspect, an apparatus includes a memory and a video coder. The memory stores a first video block and a second video block. The first video block and the second video block include sub-blocks. The video coder processes a first sub-block of the first video block according to a first process and a second process, and processes a second sub-block of the first video block according to the first process and the second process after processing the first sub-block of the first video block according to the first process and the second process. Further, the video coder processes a first sub-block of the second video block according to the first process before processing the second sub-block of the first video block according to the first process.

    Abstract translation: 本文描述了用于在视频编码中交织视频子块的系统和方法。 一方面，一种装置包括存储器和视频编码器。 存储器存储第一视频块和第二视频块。 第一视频块和第二视频块包括子块。 视频编码器根据第一处理和第二处理处理第一视频块的第一子块，并且在处理第一子图之后根据第一处理和第二处理处理第一视频块的第二子块 - 根据第一处理和第二处理的第一视频块的块。 此外，根据第一处理，视频编码器根据第一处理在处理第一视频块的第二子块之前处理第二视频块的第一子块。

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