中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

193 records (took 0.026 seconds)

    METHOD FOR SIGNALING PICTURE HEADER IN CODED VIDEO STREAM
    1.
    发明申请
    METHOD FOR SIGNALING PICTURE HEADER IN CODED VIDEO STREAM 有权

    公开(公告)号：US20250142103A1

    公开(公告)日：2025-05-01

    申请号：US19011256

    申请日：2025-01-06

    Applicant: Tencent America LLC

    Inventor： Byeongdoo CHOI ,  Shan LIU ,  Stephan WENGER

    IPC: H04N19/44 ,  H04N19/169 ,  H04N19/172 ,  H04N19/46

    Abstract: A method of decoding an encoded video bitstream using at least one processor includes obtaining a video coding layer (VCL) network abstraction layer (NAL) unit; determining whether the VCL NAL unit is a first VCL NAL unit of a picture unit (PU) containing the VCL NAL unit; based on determining that the VCL NAL unit is the first VCL NAL unit of the PU, determining whether the VCL NAL unit is a first VCL NAL unit of an access unit (AU) containing the PU; and based on determining that the VCL NAL unit is the first VCL NAL unit of the AU, decoding the AU based on the VCL NAL unit.

    SEI MESSAGE FOR FILM GRAIN SYNTHESIS
    2.
    发明申请
    SEI MESSAGE FOR FILM GRAIN SYNTHESIS 有权

    公开(公告)号：US20250106437A1

    公开(公告)日：2025-03-27

    申请号：US18895594

    申请日：2024-09-25

    Applicant: TENCENT AMERICA LLC

    Inventor： Stephan WENGER ,  Arianne HINDS

    IPC: H04N19/70 ,  H04N19/132 ,  H04N19/136 ,  H04N19/167 ,  H04N19/172

    Abstract: A method and apparatus comprising computer code configured to cause a processor or processors to obtain video data comprising at least one coded picture, reconstruct a coded picture including a film grain characteristics SEI message, an alpha channel information SEI message, and at least a first sample and a second sample and at least a third alpha map sample and a fourth alpha map sample, wherein after reconstruction the first sample and the third alpha map sample, and the second sample and first sample are spatially co-located; apply film grain synthesis to the first sample based on a first value of the third sample; and determine to not applying film grain syntheses to the second sample based on a second value of the fourth sample, wherein the first value and second value are different from each other.

    REQUIRED SUPPLEMENTARY ENHANCEMENT INFORMATION MESSAGES THROUGH PROFILE
    3.
    发明申请
    REQUIRED SUPPLEMENTARY ENHANCEMENT INFORMATION MESSAGES THROUGH PROFILE 有权

    公开(公告)号：US20250106420A1

    公开(公告)日：2025-03-27

    申请号：US18889642

    申请日：2024-09-19

    Applicant: TENCENT AMERICA LLC

    Inventor： Stephan WENGER

    IPC: H04N19/44 ,  H04N19/169 ,  H04N19/70

    Abstract: A method and apparatus comprising computer code configured to cause a processor or processors to obtain video data comprising at least one coded picture, identify, by a decoder, at least one first supplementary information enhancement (SEI) message type included with the video data and from a plurality of SEI message types that is required to be processed by the decoder, and the first SEI message type is selected based on a value of a profile indicator; and decode, by the decoder, the video data based on the first SEI message type.

    SCENE GRAPH TRANSLATION
    7.
    发明公开
    SCENE GRAPH TRANSLATION 审中-公开

    公开(公告)号：US20240104803A1

    公开(公告)日：2024-03-28

    申请号：US18215343

    申请日：2023-06-28

    Applicant: Tencent America LLC

    Inventor： Arianne HINDS ,  Paul Spencer DAWKINS ,  Stephan WENGER

    IPC: G06T11/20

    CPC classification number: G06T11/206 ,  G06T2210/32

    Abstract: Media data of a first scene graph is received. The first scene graph is created based on a first scene graph format. The first scene graph format includes a plurality of description components indicating attributes of the first scene graph. A plurality of metadata identifiers associated with the first scene graph format and a plurality of metadata identifiers associated with a second scene graph format are determined based on a lookup table. The lookup table identifies metadata identifiers associated with the first and second scene graph formats. A plurality of description components of the second scene graph format that indicates the attributes of the first scene graph is determined based on (i) the plurality of description components of the first scene graph format, (ii) the plurality of metadata identifiers associated with the first scene graph format, and (iii) the plurality of metadata identifiers associated with the second scene graph format.

    EFFICIENT SIGNALING OF PICTURE SIZE AND PARTITIONING INFORMATION
    10.
    发明公开
    EFFICIENT SIGNALING OF PICTURE SIZE AND PARTITIONING INFORMATION 审中-公开

    公开(公告)号：US20230300361A1

    公开(公告)日：2023-09-21

    申请号：US18324573

    申请日：2023-05-26

    Applicant: TENCENT AMERICA LLC

    Inventor： Byeongdoo CHOI ,  Stephan WENGER ,  Shan LIU

    IPC: H04N19/46 ,  H04N19/122 ,  H04N19/119 ,  H04N19/136

    CPC classification number: H04N19/46 ,  H04N19/122 ,  H04N19/119 ,  H04N19/136

    Abstract: A method of efficient signalizing of picture size and partitioning information in a video bitstream, is performed by at least one processor and includes obtaining, from a sequence parameter set (SPS) to which a coded picture refers, a flag indicating whether the picture size and partitioning information of the coded picture is included in the SPS, and determining whether the obtained flag indicates that the picture size and partitioning information is included in the SPS. The method further includes based on the flag being determined to indicate that the picture size and partitioning information is included in the SPS, obtaining, from the SPS, the picture size and partitioning information, and based on the flag being determined to indicate that the picture size and partitioning information is not included in the SPS, obtaining, from a video parameter set (VPS), the picture size and partitioning information that is included in the VPS.

Patent Agency Ranking