中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.015 seconds)

    UNIFIED MERGE CANDIDATE LIST USAGE
    1.
    发明申请
    UNIFIED MERGE CANDIDATE LIST USAGE 有权

    公开(公告)号：US20210195234A1

    公开(公告)日：2021-06-24

    申请号：US16762777

    申请日：2018-11-14

    Applicant: Qualcomm Incorporated

    Inventor： Kai ZHANG ,  Jianle CHEN ,  Li ZHANG ,  Marta KARCZEWICZ

    IPC: H04N19/56 ,  H04N19/52 ,  H04N19/70 ,  H04N19/176

    Abstract: A video decoder including one or more processors configured to receive one or more bits, in a bitstream, that indicate the encoded current block of video data was encoded based on a unified candidate list that includes motion vector candidates based on one or more translational motion vectors, and motion vector candidates based on one or more affine motion vectors. A merge index represented in the bitstream may indicate which candidate in the unified candidate list is associated with the motionvector of the encoded current block of video data. Based on the merge index, the one or more processors are configured to select one or more motion vectors of a candidate from the unified candidate list, based on the merge index, where the candidate has one or more of the motion vectors corresponding to the translational motion vectors or affine motion vectors within the unified candidate list.

    IMPROVEMENTS TO ADVANCED TEMPORAL MOTION VECTOR PREDICTION
    2.
    发明申请
    IMPROVEMENTS TO ADVANCED TEMPORAL MOTION VECTOR PREDICTION 有权

    公开(公告)号：US20210099724A1

    公开(公告)日：2021-04-01

    申请号：US16982013

    申请日：2019-09-26

    Applicant: Qualcomm Incorporated

    Inventor： Yu HAN ,  Kai ZHANG ,  Li ZHANG ,  Wei-Jung CHIEN ,  Marta KARCZEWICZ

    IPC: H04N19/44 ,  H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

    Abstract: Methods and devices for decoding including a processor configured to determine which picture is a collocated picture, and determine a location of an associated block of the video data in the collocated picture that corresponds to the current block of video data in the current coding picture, based on using previously decoded blocks in the current coding picture to find an initial motion vector between the associated block in the collocated picture and the current block in the current coding picture, where the associated block of the video data includes at least one first derived motion vector. The processor configured to determine at least one second derived motion vector associated with the current block in the current coding picture, when the initial motion vector points to the collocated picture, based on the at least on first derived motion vector associated with the associated block in the collocated picture.

    INTRA PREDICTION IN VIDEO CODING
    3.
    发明申请
    INTRA PREDICTION IN VIDEO CODING 审中-公开

    公开(公告)号：US20190007688A1

    公开(公告)日：2019-01-03

    申请号：US16020179

    申请日：2018-06-27

    Applicant: QUALCOMM Incorporated

    Inventor： Kai ZHANG ,  Jianle CHEN ,  Xin ZHAO ,  Marta KARCZEWICZ

    IPC: H04N19/159 ,  H04N19/11 ,  H04N19/109 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

    Abstract: 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.

    CHROMA QUANTIZATION PARAMETER (QP) OFFSET
    5.
    发明申请
    CHROMA QUANTIZATION PARAMETER (QP) OFFSET 审中-公开

    公开(公告)号：US20190124330A1

    公开(公告)日：2019-04-25

    申请号：US16156894

    申请日：2018-10-10

    Applicant: QUALCOMM Incorporated

    Inventor： Wei-Jung CHIEN ,  Kai ZHANG ,  Yi-Wen CHEN ,  Marta KARCZEWICZ

    IPC: H04N19/124 ,  H04N19/186 ,  H04N19/174 ,  H04N19/103

    Abstract: Provided are systems, methods, and computer-readable medium for encoding and decoding video data. In various examples, a coding device can include multiple luma QP and chroma QP relationship tables. In performing quantization or inverse quantization one video data being encoded or decoded, respectively, the coding device can select a table. The table can be selected based on, for example, a slice type, a prediction mode, and/or a luminance value, among other factors. The coding device can then use the luma QP value to look up a chroma QP value from the table. The luma QP and chroma QP values can then be used in quantization or inverse quantization.

    MOTION INFORMATION PROPAGATION IN VIDEO CODING
    8.
    发明申请
    MOTION INFORMATION PROPAGATION IN VIDEO CODING 审中-公开

    公开(公告)号：US20180376164A1

    公开(公告)日：2018-12-27

    申请号：US16011340

    申请日：2018-06-18

    Applicant: QUALCOMM Incorporated

    Inventor： Kai ZHANG ,  Xiang LI ,  Jianle CHEN ,  Li ZHANG ,  Marta KARCZEWICZ

    IPC: H04N19/56 ,  H04N19/176

    Abstract: 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.

Patent Agency Ranking