中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1201 records (took 0.03 seconds)

    SIGNALLING OF GENERAL CONSTRAINS FLAG
    141.
    发明申请
    SIGNALLING OF GENERAL CONSTRAINS FLAG 有权

    公开(公告)号：US20230115541A1

    公开(公告)日：2023-04-13

    申请号：US17992270

    申请日：2022-11-22

    Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

    Inventor： Zhipin Deng ,  Ye-kui Wang ,  Li Zhang ,  Kai Zhang

    IPC: H04N19/70 ,  H04N19/46 ,  H04N19/169 ,  H04N19/186 ,  H04N19/174

    Abstract: Methods, systems, apparatus for video processing are described. The processing may include encoding, decoding or transcoding. One example video processing method includes performing a conversion between a video and a bitstream of the video according to a rule, and wherein the rule specifies that a syntax element is included in a profile, tier, level information syntax structure to indicate whether one or more general constraint information syntax elements are included in a general constraint information syntax structure and/or whether the general constraint information syntax structure is included in the profile, tier, level information syntax structure.

    CONDITIONAL SIGNALING OF VIDEO CODING SYNTAX ELEMENTS
    143.
    发明申请
    CONDITIONAL SIGNALING OF VIDEO CODING SYNTAX ELEMENTS 有权

    公开(公告)号：US20230114860A1

    公开(公告)日：2023-04-13

    申请号：US17973810

    申请日：2022-10-26

    Applicant: Bytedance Inc.

    Inventor： Li Zhang ,  Ye-kui Wang ,  Kai Zhang

    IPC: H04N19/70 ,  H04N19/46 ,  H04N19/105 ,  H04N19/174

    Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video including one or more pictures and a bitstream of the video according to a format rule. The format rule specifies that a first syntax element that indicates whether motion vector difference for a particular reference picture list (RPL) is indicated is conditionally included in the bitstream based on (i) whether a second syntax element indicating whether an RPL information is included in a picture header and/or (ii) a number of reference pictures in the particular RPL in case that the RPL information is present in the picture header.

    TMVP derivation
    146.
    发明授权
    TMVP derivation 有权

    公开(公告)号：US11627308B2

    公开(公告)日：2023-04-11

    申请号：US17126707

    申请日：2020-12-18

    Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

    Inventor： Li Zhang ,  Kai Zhang ,  Hongbin Liu ,  Yue Wang

    IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/30 ,  H04N19/517 ,  H04N19/137

    Abstract: A video processing method includes deriving multiple temporal motion vector prediction (TMVP) candidates for a video block in a current picture based on multiple blocks associated with a second block in one or more pictures that are temporally co-located with the current picture, wherein the current picture is excluded from the one or more pictures, and the second block is temporally collocated with the video block, wherein the second block has a same size as the video block, and wherein a relative position of the second block to a top-left corner of a second picture of the one or more pictures is same as that of the video block to a top-left corner of the current picture; adding the multiple TMVP candidates to a motion candidate list associated with the video block; and performing a conversion between the video block and a bitstream.

    Matrix-based intra prediction using upsampling
    148.
    发明授权
    Matrix-based intra prediction using upsampling 有权

    公开(公告)号：US11616957B2

    公开(公告)日：2023-03-28

    申请号：US17479360

    申请日：2021-09-20

    Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

    Inventor： Zhipin Deng ,  Kai Zhang ,  Li Zhang ,  Hongbin Liu ,  Jizheng Xu

    IPC: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  G06F7/78 ,  G06F17/16

    Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block using a matrix based intra prediction (MIP) mode in which a prediction block of the current video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and followed by an upsampling operation, where the upsampling operation is performed, in both a vertical direction and a horizontal direction in a fixed order, on samples obtained from the matrix vector multiplication operation.

Patent Agency Ranking