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    Modification of picture parameter set (PPS) for HEVC extensions
    2.
    发明授权
    Modification of picture parameter set (PPS) for HEVC extensions 有权

    公开(公告)号：US12075071B2

    公开(公告)日：2024-08-27

    申请号：US17700196

    申请日：2022-03-21

    申请人： ARRIS Enterprises LLC

    发明人： Yue Yu ,  Limin Wang

    IPC分类号： H04N19/30 ,  H04N19/70 ,  H04N19/46

    CPC分类号： H04N19/30 ,  H04N19/70 ,  H04N19/46

    摘要： A method, apparatus, article of manufacture, and a memory structure for signaling extension functions used in decoding a sequence comprising a plurality of pictures, each picture processed at least in part according to a picture parameter set is disclosed. In one embodiment, the method comprises reading a first extension flag signaling a first extension function in the processing of the sequence and determining if the first extension flag has a first value. Further, the method reads a second extension flag signaling a second extension function in the processing of the sequence and performs the second extension function according to the read second extension flag only if the first extension flag has a first value.

    BIT DEPTH VARIABLE FOR HIGH PRECISION DATA IN WEIGHTED PREDICTION SYNTAX AND SEMANTICS
    9.
    发明公开
    BIT DEPTH VARIABLE FOR HIGH PRECISION DATA IN WEIGHTED PREDICTION SYNTAX AND SEMANTICS 审中-公开

    公开(公告)号：US20230239498A1

    公开(公告)日：2023-07-27

    申请号：US18124503

    申请日：2023-03-21

    申请人： ARRIS Enterprises LLC

    发明人： Yue Yu ,  Limin Wang

    IPC分类号： H04N19/46 ,  H04N19/70 ,  H04N19/186 ,  H04N19/172

    CPC分类号： H04N19/46 ,  H04N19/70 ,  H04N19/172 ,  H04N19/186

    摘要： Particular embodiments provide a variable, BitDepth, that may be set at a value based on a number of bits used to represent pixels in pictures of a video. The variable may be used in syntax elements in HEVC, such as the HEVC range extension, but other coding standards may be used. By using the variable, different resolutions for the video may be accommodated during the encoding and decoding process. For example, the number of pixels in the pictures may be represented by 8 bits, 10 bits, 12 bits, or another number of bits depending on the resolution. Using the BitDepth variable in the syntax provides flexibility in the motion estimation and motion compensation process. For example, syntax elements used in the weighted prediction process may take into account different numbers of bits used to represent the pictures.