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    TECHNIQUES FOR SIGNALING MULTIVIEW VIEW POSITIONS IN SEI MESSAGE
    71.
    发明申请
    TECHNIQUES FOR SIGNALING MULTIVIEW VIEW POSITIONS IN SEI MESSAGE 有权

    公开(公告)号：US20230097425A1

    公开(公告)日：2023-03-30

    申请号：US17824639

    申请日：2022-05-25

    Applicant: Tencent America LLC

    Inventor： Byeongdoo CHOI ,  Shan LIU ,  Stephan WENGER ,  Arianne HINDS

    IPC: H04N19/46 ,  H04N19/88 ,  H04N19/597 ,  H04N19/172

    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes processing circuitry. The processing circuitry decodes pictures associated with views in a bitstream and determines, from a supplemental enhancement information (SEI) message, positions of multidimensional coordinates in a multidimensional space respectively for the views. In an example, a position of a view is defined in the SEI message by at least a vertical view position and a horizontal view position in the multidimensional space. Further, the processing circuitry determines a rendering picture from the pictures based on a rendering view that is defined by at least the vertical view position and the horizontal view position in the multidimensional space.

    MULTIVIEW-RELATED SUPPLEMENTARY ENHANCEMENT INFORMATION MESSAGES
    74.
    发明申请
    MULTIVIEW-RELATED SUPPLEMENTARY ENHANCEMENT INFORMATION MESSAGES 有权

    公开(公告)号：US20230007304A1

    公开(公告)日：2023-01-05

    申请号：US17850530

    申请日：2022-06-27

    Applicant: Tencent America LLC

    Inventor： Byeongdoo CHOI ,  Stephan WENGER ,  Xiang LI ,  Shan LIU

    IPC: H04N19/70 ,  H04N19/597

    Abstract: Aspects of the disclosure provide a method, an apparatus, and non-transitory computer-readable storage medium for video decoding. The apparatus includes processing circuitry configured to receive a first supplemental enhancement information (SEI) message including scalability dimension information (SDI). The first SEI message includes SDI of a plurality of views in a multiview bitstream including a coded video sequence (CVS) with a plurality of layers. The processing circuitry determines a value of a first syntax element sdi_view_id_val[] in the first SEI message. The first syntax element sdi_view_id_val[ ] indicates a view identifier (ViewId) of a layer in the plurality of layers. The processing circuitry determines, based on the first syntax element sdi_view_id_val[ ], a target layer of the plurality of layers to which a second syntax element of a second SEI message applies. The first syntax element sdi_view_id_val[] indicates a view of the plurality of views associated with the second syntax element.

    METHOD FOR SIGNALING OF REFERENCE PICTURE RESAMPLING WITH RESAMPLING PICTURE SIZE INDICATION IN VIDEO BISTREAM
    76.
    发明申请
    METHOD FOR SIGNALING OF REFERENCE PICTURE RESAMPLING WITH RESAMPLING PICTURE SIZE INDICATION IN VIDEO BISTREAM 有权

    公开(公告)号：US20220210428A1

    公开(公告)日：2022-06-30

    申请号：US17697402

    申请日：2022-03-17

    Applicant: TENCENT AMERICA LLC

    Inventor： Byeongdoo CHOI ,  Stephan WENGER ,  Shan LIU

    IPC: H04N19/132 ,  H04N19/196 ,  H04N19/172 ,  H04N19/184 ,  H04N19/146

    Abstract: A method, device, and computer-readable medium for decoding an encoded video bitstream using at least one processor, including obtaining a flag indicating that a conformance window is not used for reference picture resampling; based on the flag indicating that the conformance window is not used for the reference picture resampling, determining whether a resampling picture size is signaled; based on determining that the resampling picture size is signaled, determining a resampling ratio based on the resampling picture size; based on determining that the resampling picture size is not signaled, determining the resampling ratio based on an output picture size; and performing the reference picture resampling on a current picture using the resampling ratio.

    METHOD FOR LAYERWISE RANDOM ACCESS IN A CODED VIDEO STREAM
    77.
    发明申请
    METHOD FOR LAYERWISE RANDOM ACCESS IN A CODED VIDEO STREAM 有权

    公开(公告)号：US20220103850A1

    公开(公告)日：2022-03-31

    申请号：US17546780

    申请日：2021-12-09

    Applicant: TENCENT AMERICA LLC

    Inventor： Byeongdoo CHOI ,  Shan Liu ,  Stephan WENGER

    IPC: H04N19/46 ,  H04N19/129 ,  H04N19/172 ,  H04N19/169 ,  H04N19/159

    Abstract: A method of generating an encoded video bitstream, including obtaining an IRAP AU from a video bitstream; determining whether the IRAP AU is a first AU in a decoding order, whether each picture is an IDR picture, or whether each picture is a first picture of a layer following an EOS NAL unit; if so, setting a first flag for the IRAP AU equal to one; if not, determining whether a second flag for the IRAP AU is externally set to an external value; if so, setting the first flag for the IRAP AU equal to the external value; and if not, setting the first flag for the IRAP AU and the second flag for the IRAP AU equal to zero; encoding the video bitstream based on the first flag and the second flag; and transmitting the encoded video bitstream.

    METHOD AND APPARATUS FOR CLOUD GAMING
    80.
    发明申请
    METHOD AND APPARATUS FOR CLOUD GAMING 有权

    公开(公告)号：US20210283499A1

    公开(公告)日：2021-09-16

    申请号：US17184082

    申请日：2021-02-24

    Applicant: TENCENT AMERICA LLC

    Inventor： Guichun LI ,  Xiang LI ,  Xiaozhong XU ,  Byeongdoo CHOI ,  Shan LIU

    IPC: A63F13/355 ,  H04N19/52

    Abstract: Aspects of the disclosure provide methods and apparatuses for cloud gaming. In some examples, an apparatus for cloud gaming includes processing circuitry. For example, the processing circuitry receives a video sequence and metadata associated with the video sequence. The video sequence includes a sequence of picture frames generated in response to gaming control information, and the metadata is determined based on the gaming control information. The processing circuitry can determine, based on the metadata, an encoding configuration for encoding the video sequence. Then the processing circuitry encodes, based on the encoding configuration, the video sequence into a coded video bitstream.

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