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    DETERMINING PALETTE SIZE, PALETTE ENTRIES AND FILTERING OF PALETTE CODED BLOCKS IN VIDEO CODING
    21.
    发明申请
    DETERMINING PALETTE SIZE, PALETTE ENTRIES AND FILTERING OF PALETTE CODED BLOCKS IN VIDEO CODING 有权
    在视频编码中确定PALETTE SIZE，PALETTE ENTRIES和PALETTE编码块的过滤

    公开(公告)号：US20150281703A1

    公开(公告)日：2015-10-01

    申请号：US14667900

    申请日：2015-03-25

    Applicant: QUALCOMM Incorporated

    Inventor： Feng Zou ,  Wei Pu ,  Rajan Laxman Joshi ,  Joel Sole Rojals ,  Marta Karczewicz

    IPC: H04N19/186 ,  H04N19/176

    CPC classification number: H04N19/94 ,  H04N19/80

    Abstract: Techniques are described for palette-based coding. In palette-based coding, a video coder may form a palette as a table of colors for representing video data of a given block. Palette-based coding may be useful for coding blocks of video data having a relatively small number of colors. Rather than coding actual pixel values or their residuals for the given block, the video coder may code index values for one or more of the pixels. The index values map the pixels to entries in the palette representing the colors of the pixels. Techniques are described for determining whether to disable filtering, such as deblocking filtering or sample adaptive offset (SAO) filtering, of palette coded blocks at a video encoder or a video decoder. Techniques are also described for modify a palette size and palette entries of a palette at the video encoder based on rate-distortion costs.

    Abstract translation: 技术描述为基于调色板的编码。 在基于调色板的编码中，视频编码器可以形成调色板作为表示给定块的视频数据的颜色表。 基于调色板的编码对于具有相对较少颜色的视频数据的块的编码可能是有用的。 视频编码器不需要为给定块编码实际像素值或其残差，而是可以对一个或多个像素的索引值进行编码。 索引值将像素映射到调色板中表示像素颜色的条目。 描述了用于确定是否禁用在视频编码器或视频解码器处的调色板编码块的滤波，例如去块滤波或采样自适应偏移（SAO）滤波）的技术。 还描述了基于速率失真成本来修改视频编码器上的调色板尺寸和调色板条目的技术。

    QUANTIZATION PROCESSES FOR RESIDUE DIFFERENTIAL PULSE CODE MODULATION
    22.
    发明申请
    QUANTIZATION PROCESSES FOR RESIDUE DIFFERENTIAL PULSE CODE MODULATION 有权
    残留差分脉冲代码调制的量化过程

    公开(公告)号：US20150264376A1

    公开(公告)日：2015-09-17

    申请号：US14659358

    申请日：2015-03-16

    Applicant: QUALCOMM Incorporated

    Inventor： Feng Zou ,  Joel Sole Rojals ,  Rajan Laxman Joshi ,  Chao Pang ,  Marta Karczewicz

    IPC: H04N19/463 ,  H04N19/196 ,  H04N19/126

    CPC classification number: H04N19/463 ,  H04N19/126 ,  H04N19/157 ,  H04N19/197

    Abstract: In an example, system and method for coding encoded video data. A quantized residue differences block associated with a current block of a picture is generated and a reconstructed prediction residue for each quantized residue difference in the block of quantized residue differences is generated. Each reconstructed prediction residue is added to its corresponding original prediction value to produce a current block of a picture. Generating the reconstructed prediction residue includes performing inverse quantization on blocks of quantized residue differences, wherein the inverse quantization reconstructs data to which uniform quantization residue differential pulse code modulation (RDPCM) has been applied and wherein the quantization is of the form: ΔXq=floor((X+αQ)/Q) where Q is quantization step and α is quantization offset.

    Abstract translation: 在一个例子中，用于编码编码视频数据的系统和方法。 产生与图像的当前块相关联的量化残差差分块，并且生成量化残差差分块中每个量化残差差的重构预测残差。 将每个重建的预测残差加到其对应的原始预测值以产生图像的当前块。 生成重建的预测残差包括对量化残差差分块执行逆量化，其中逆量化重建已应用均匀量化残差差分脉冲编码调制（RDPCM）的数据，其中量化形式为：＆D​​gr; Xq = （（X +αQ）/ Q）其中Q是量化步长，α是量化偏移。

    Grouping palette bypass bins for video coding
    23.
    发明授权
    Grouping palette bypass bins for video coding 有权

    公开(公告)号：US11146788B2

    公开(公告)日：2021-10-12

    申请号：US15177201

    申请日：2016-06-08

    Applicant: QUALCOMM Incorporated

    Inventor： Rajan Laxman Joshi ,  Vadim Seregin ,  Wei Pu ,  Feng Zou ,  Marta Karczewicz

    IPC: H04N19/119 ,  H04N19/186 ,  H04N19/91 ,  H04N19/176 ,  H04N19/70 ,  H04N19/13 ,  H04N19/159 ,  H04N19/184

    Abstract: An example method of coding video data includes coding, from a coded video bitstream, a syntax element that indicates whether a transpose process is applied to palette indices of a palette for a current block of video data; decoding, from the coded video bitstream and at a position in the coded video bitstream that is after the syntax element that indicates whether the transpose process is applied to palette indices of the palette for the current block of video data, one or more syntax elements related to delta quantization parameter (QP) and/or chroma QP offsets for the current block of video data; and decoding the current block of video data based on the palette for the current block of video data and the one or more syntax elements related to delta QP and/or chroma QP offsets for the current block of video data.

    TREE-TYPE CODING FOR VIDEO CODING
    24.
    发明申请
    TREE-TYPE CODING FOR VIDEO CODING 审中-公开

    公开(公告)号：US20200267418A1

    公开(公告)日：2020-08-20

    申请号：US16798039

    申请日：2020-02-21

    Applicant: QUALCOMM Incorporated

    Inventor： Hsiao-Chiang Chuang ,  Xiang Li ,  Jianle Chen ,  Feng Zou ,  Wei-Jung Chien ,  Yi-Wen Chen ,  Marta Karczewicz

    IPC: H04N19/96 ,  H04N19/593 ,  H04N19/176 ,  H04N19/134 ,  H04N19/463 ,  H04N19/119

    Abstract: An example device includes a memory to store the video data, and processing circuitry in communication with the memory. The processing circuitry is configured to compare a value of a dimension of a current block of the stored video data to a value of a corresponding dimension of a neighboring block of the current block to obtain a relative dimension value. The processing circuitry is further configured to determine, based on the relative dimension value, that the current block is to be partitioned according to a prediction tree (PT) portion of a multi-type tree-based partitioning scheme. The PT portion comprises partitioning according to one of a binary tree structure or a center-side triple tree structure. The processing circuitry is further configured to partition, based on the determination, the current block according to the PT portion, to form a plurality of sub-blocks.

    PALETTE INDEX VALUE SWAPPING IN PALETTE MODE
    30.
    发明申请
    PALETTE INDEX VALUE SWAPPING IN PALETTE MODE 审中-公开
    PALETTE索引值在PALETTE模式中切换

    公开(公告)号：US20160255352A1

    公开(公告)日：2016-09-01

    申请号：US15152244

    申请日：2016-05-11

    Applicant: QUALCOMM Incorporated

    Inventor： Wei Pu ,  Marta Karczewicz ,  Feng Zou ,  Rajan Laxman Joshi ,  Vadim Seregin ,  Joel Sole Rojals

    IPC: H04N19/186 ,  H04N19/70 ,  H04N19/61 ,  H04N19/176

    CPC classification number: H04N19/186 ,  H03M7/40 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91 ,  H04N19/93 ,  H04N19/94

    Abstract: In an example, a method of decoding video data using palette mode may include receiving, from an encoded video bitstream, a first syntax element defining a value indicative of a scan order. The method may include receiving, from the encoded video bitstream, a second syntax element defining a value indicative of a swap operation. The method may include reconstructing a palette block from a plurality of palette index values based on the value of the second syntax element indicative of the swap operation.

    Abstract translation: 在一个示例中，使用调色板模式对视频数据进行解码的方法可以包括从编码视频比特流接收定义表示扫描顺序的值的第一语法元素。 该方法可以包括从编码视频比特流中接收定义表示交换操作的值的第二语法元素。 该方法可以包括基于指示交换操作的第二语法元素的值从多个调色板索引值重建调色板块。

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