Simplified processing of weighted prediction syntax and semantics using a bit depth variable for high precision data

    公开(公告)号:US10999574B2

    公开(公告)日:2021-05-04

    申请号:US14533347

    申请日:2014-11-05

    Inventor: Yue Yu Limin Wang

    Abstract: Particular embodiments may remove a condition check in the semantics for checking a high-precision data flag. This simplifies the semantics used in the encoding and decoding process. In this case, even if the high-precision data flag is not set, the value of the weighted prediction syntax element is set by the BitDepth variable. However, even if the BitDepth is not considered high-precision data, such as 8 bits, the range for the weighted prediction syntax element is still the same as the fixed value. For example, the syntax elements luma_offset_l0[i], luma_offset_l1[i], delta_chroma_offset_l0[i][j], and delta_chroma_offset_l1[i][j] use the variable BitDepth as described above whether the flag extended_precision_processing_flag is enabled and not enabled to indicate whether the bit depth is above a threshold.

    CONSTRAINING NUMBER OF BITS GENERATED RELATIVE TO VBV BUFFER
    2.
    发明申请
    CONSTRAINING NUMBER OF BITS GENERATED RELATIVE TO VBV BUFFER 有权
    限制与VBV缓冲器相关的生成数量

    公开(公告)号:US20160234506A1

    公开(公告)日:2016-08-11

    申请号:US15041106

    申请日:2016-02-11

    Abstract: A method is provided for encoding multiple video frames in parallel. The method includes the steps of generating an estimated starting fullness level of a VBV buffer before encoding begins, beginning parallel frame encoding, monitoring the number of bits produced for each parallel frame during encoding, tracking the number of unencoded CTUs within each parallel frame during encoding, continuously updating an actual fullness level of the VBV buffer relative to each parallel frame during encoding, and encoding in skip mode any remaining unencoded CTUs in a particular frame and any preceding frames when the difference between the actual fullness level for a frame and a minimum fullness level for the VBV Buffer equals the number of remaining unencoded CTUs in that particular frame.

    Abstract translation: 提供了一种并行编码多个视频帧的方法。 该方法包括以下步骤:在编码开始之前产生VBV缓冲器的估计开始饱和度水平,开始并行帧编码,监视在编码期间为每个并行帧产生的位数,在编码期间跟踪每个并行帧内未编码的CTU的数量 在编码期间相对于每个并行帧连续地更新VBV缓冲器的实际丰满度级别,并且在跳过模式下编码特定帧和任何前一帧中的任何剩余的未编码的CTU,当帧的实际饱和度水平与最小值之间的差 VBV缓冲区的饱和度级别等于该特定帧中剩余的未编码CTU的数量。

    MODIFIED HEVC TRANSFORM TREE SYNTAX
    3.
    发明申请
    MODIFIED HEVC TRANSFORM TREE SYNTAX 审中-公开
    改良的HEVC变形树体系

    公开(公告)号:US20150092862A1

    公开(公告)日:2015-04-02

    申请号:US14504020

    申请日:2014-10-01

    Inventor: Yue Yu Limin Wang

    CPC classification number: H04N19/60 H04N19/503 H04N19/593 H04N19/61 H04N19/70

    Abstract: A method, apparatus, article of manufacture, and a memory structure for performing transform tree processing in advanced coding schemes is disclosed. Logical statements having two operands that can result in negative flag indexes have been replaced with conditional multiple logical statements with single operands.

    Abstract translation: 公开了一种用于在高级编码方案中执行变换树处理的方法,装置,制品和存储器结构。 具有可能导致负标志索引的两个操作数的逻辑语句已被替换为具有单个操作数的条件多个逻辑语句。

    INTRA BLOCK COPY FOR INTRA SLICES IN HIGH EFFICIENCY VIDEO CODING (HEVC)
    8.
    发明申请
    INTRA BLOCK COPY FOR INTRA SLICES IN HIGH EFFICIENCY VIDEO CODING (HEVC) 有权
    高效率视频编码(HEVC)内部片内嵌块复制

    公开(公告)号:US20150139296A1

    公开(公告)日:2015-05-21

    申请号:US14546315

    申请日:2014-11-18

    Inventor: Yue Yu Limin Wang

    Abstract: A method for decoding high efficiency video coding, comprising determining whether a coding unit is within an intra slice or an inter slice, determining whether intra block copy has been enabled, reviewing syntax for said coding unit for an intra block copy flag when the coding unit is within an intra slice and intra block copy has been enabled, and omitting reviewing the syntax for the intra block copy flag when the coding unit is within an inter slice.

    Abstract translation: 一种用于解码高效率视频编码的方法,包括:确定编码单元是否在片内或片间内,确定帧内块是否已被启用,当编码单元检查帧内块复制标志时,检查所述编码单元的语法 在片内并且块内副本已经被启用,并且当编码单元在片间内时,省略对块内拷贝标志的语法的检查。

    Bit depth variable for high precision data in weighted prediction syntax and semantics

    公开(公告)号:US10432963B2

    公开(公告)日:2019-10-01

    申请号:US14533369

    申请日:2014-11-05

    Inventor: Yue Yu Limin Wang

    Abstract: 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.

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