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    INTRA MODE EXTENSIONS FOR DIFFERENCE DOMAIN INTRA PREDICTION
    81.
    发明申请
    INTRA MODE EXTENSIONS FOR DIFFERENCE DOMAIN INTRA PREDICTION 有权
    用于差异域内预测的内部模式扩展

    公开(公告)号：US20140010280A1

    公开(公告)日：2014-01-09

    申请号：US13935402

    申请日：2013-07-03

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

    IPC: H04N7/32

    CPC classification number: H04N19/103 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/187 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70

    Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding base layer of the video information. The processor determines a DC prediction value for a video unit associated with the difference video layer while refraining from using pixel information from a neighboring area of the video unit, wherein the DC prediction value is equal to zero or is offset by an offset value. The DC prediction value is a prediction value used in intra prediction based at least on an average of neighboring video units of the video unit. The processor further determines a value of the video unit based at least in part on the DC prediction value.

    Abstract translation: 根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储与视频信息的增强层和对应的基本层之间的差异导出的像素信息的差异视频层相关联的差分视频信息。 处理器在禁止使用来自视频单元的相邻区域的像素信息的同时，确定与差分视频层相关联的视频单元的DC预测值，其中DC预测值等于零或被偏移值偏移。 DC预测值是至少基于视频单元的相邻视频单元的平均值在帧内预测中使用的预测值。 处理器还至少部分地基于DC预测值来确定视频单元的值。

    GROUPING OF BYPASS-CODED BINS FOR SAO SYNTAX ELEMENTS
    82.
    发明申请
    GROUPING OF BYPASS-CODED BINS FOR SAO SYNTAX ELEMENTS 有权
    用于SAO SYNTAX元件的旁路编码组的分组

    公开(公告)号：US20130336382A1

    公开(公告)日：2013-12-19

    申请号：US13767676

    申请日：2013-02-14

    Applicant: QUALCOMM INCORPORATED

    Inventor： Joel SOLE ROJALS ,  In Suk CHONG ,  Marta KARCZEWICZ

    IPC: H04N7/26

    CPC classification number: H04N19/136 ,  H04N19/13 ,  H04N19/184 ,  H04N19/70 ,  H04N19/82

    Abstract: A video encoder generates a sequence of sample adaptive offset (SAO) syntax elements for a coding tree block. The SAO syntax elements include regular context-adaptive binary arithmetic coding (CABAC) coded bins for a color component and bypass-coded bins for the color component. None of the bypass-coded bins is between two of the regular CABAC-coded bins in the sequence. The video encoder uses regular CABAC to encode the regular CABAC-coded bins and uses bypass coding to encode the bypass-coded bins. The video encoder outputs the SAO syntax elements in a bitstream. A video decoder receives the bitstream, uses regular CABAC to decode the regular CABAC-coded bins, uses bypass coding to decode the bypass-coded bins, and modifies a reconstructed picture based on the SAO syntax elements.

    Abstract translation: 视频编码器生成用于编码树块的采样自适应偏移（SAO）语法元素的序列。 SAO语法元素包括用于颜色分量的常规上下文自适应二进制算术编码（CABAC）编码箱和用于颜色分量的旁路编码箱。 没有一个旁路编码的存储区位于序列中的两个常规CABAC编码区间之间。 视频编码器使用常规CABAC对常规CABAC编码的存储区进行编码，并使用旁路编码对旁路编码的存储区进行编码。 视频编码器输出比特流中的SAO语法元素。 视频解码器接收比特流，使用常规CABAC来解码常规CABAC编码箱，使用旁路编码来解码旁路编码箱，并且基于SAO语法元素修改重构图像。

    VIDEO CODING WITH LARGE MACROBLOCKS
    83.
    发明申请
    VIDEO CODING WITH LARGE MACROBLOCKS 有权

    公开(公告)号：US20130308701A1

    公开(公告)日：2013-11-21

    申请号：US13948056

    申请日：2013-07-22

    Applicant: QUALCOMM Incorporated

    Inventor： Peisong CHEN ,  Marta KARCZEWICZ ,  Yan YE

    IPC: H04N7/34

    CPC classification number: H04N19/70 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

    Abstract: Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16×16 pixels. In one example, an apparatus includes a video encoder configured to encode a coded unit comprising a plurality of video blocks, wherein at least one of the plurality of video blocks comprises a size of more than 16×16 pixels and to generate syntax information for the coded unit that includes a maximum size value, wherein the maximum size value indicates a size of a largest one of the plurality of video blocks in the coded unit. The syntax information may also include a minimum size value. In this manner, the encoder may indicate to a decoder the proper syntax decoder to apply to the coded unit.

    UNIFORM GRANULARITY FOR QUANTIZATION MATRIX IN VIDEO CODING
    84.
    发明申请
    UNIFORM GRANULARITY FOR QUANTIZATION MATRIX IN VIDEO CODING 审中-公开
    用于量化矩阵在视频编码中的均匀度

    公开(公告)号：US20130272390A1

    公开(公告)日：2013-10-17

    申请号：US13863197

    申请日：2013-04-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： Rajan Laxman JOSHI ,  Joel SOLE ROJALS ,  Marta KARCZEWICZ

    IPC: H04N7/26

    CPC classification number: H04N19/176 ,  H04N19/126 ,  H04N19/18 ,  H04N19/46

    Abstract: The techniques of this disclosure are directed toward the use of modified quantization parameter (QP) values to calculate quantized and dequantized transform coefficients of a video block with uniform QP granularity. Conventionally, when a quantization matrix is used during quantization and dequantization of transform coefficients, the quantization matrix entries act as scale factors of a quantizer step-step corresponding to a base QP value, which results in non-uniform QP granularity. To provide uniform QP granularity across all quantization matrix entries, the techniques include calculating modified QP values for transform coefficients based on associated quantization matrix entries used as offsets to a base QP value. At a video decoder, the techniques include calculating dequantized transform coefficients from quantized transform coefficients based on the modified QP values. At a video encoder, the techniques include calculating quantized transform coefficients from transform coefficients based on the modified QP values.

    Abstract translation: 本公开的技术涉及使用修改的量化参数（QP）值来计算具有均匀QP粒度的视频块的量化和去量化的变换系数。 通常，当在量化和变换系数的逆量化期间使用量化矩阵时，量化矩阵条目用作对应于基本QP值的量化器步长的比例因子，这导致不均匀的QP粒度。 为了在所有量化矩阵条目上提供均匀的QP粒度，该技术包括基于用作基本QP值的偏移的相关联的量化矩阵条目来计算变换系数的修正QP值。 在视频解码器中，技术包括基于经修改的QP值从量化变换系数计算去量化变换系数。 在视频编码器中，技术包括基于修改的QP值来计算来自变换系数的量化变换系数。

    INTRA PREDICTION USING ENHANCED INTERPOLATION FILTERS
    86.
    发明申请
    INTRA PREDICTION USING ENHANCED INTERPOLATION FILTERS 有权

    公开(公告)号：US20250030888A1

    公开(公告)日：2025-01-23

    申请号：US18908535

    申请日：2024-10-07

    Applicant: QUALCOMM Incorporated

    Inventor： Bappaditya RAY ,  Vadim SEREGIN ,  Marta KARCZEWICZ

    IPC: H04N19/593 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/174 ,  H04N19/176 ,  H04N19/80

    Abstract: Techniques are described herein for processing video data using enhanced interpolation filters for intra-prediction. For instance, a device can determine an intra-prediction mode for predicting a block of video data. The device can determine a type of smoothing filter to use for the block of video data, wherein the type of the smoothing filter is determined based at least in part on comparing at least one of a width of the block of video data and a height of the block of video data to a first threshold. The device can further perform intra-prediction for the block of video data using the determined type of smoothing filter and the intra-prediction mode.

    METHODS AND APPARATUS FOR LOSSLESS COMPRESSION OF GPU DATA
    88.
    发明申请
    METHODS AND APPARATUS FOR LOSSLESS COMPRESSION OF GPU DATA 有权

    公开(公告)号：US20220254070A1

    公开(公告)日：2022-08-11

    申请号：US17169342

    申请日：2021-02-05

    Applicant: QUALCOMM Incorporated

    Inventor： Ankitesh Kumar SINGH ,  Cheng-Teh HSIEH ,  Marta KARCZEWICZ

    IPC: G06T9/00 ,  G06T1/20 ,  G06T7/90

    Abstract: The present disclosure relates to methods and devices for data or graphics processing including an apparatus, e.g., a GPU. The apparatus may receive at least one bitstream including a plurality of bits, each of the bits corresponding to a position in the at least one bitstream, and each of the bits being associated with color data. The apparatus may also arrange an order of the plurality of bits in the at least one bitstream, such that at least one of the bits corresponds to an updated position in the at least one bitstream. Additionally, the apparatus may convert, upon arranging the order of the bits, the color data associated with each of the plurality of bits in the at least one bitstream. The apparatus may also compress, upon converting the color data associated with each of the bits, the plurality of bits in the at least one bitstream.

    ADAPTIVE LOOP FILTERING FOR COLOR FORMAT SUPPORT
    89.
    发明申请
    ADAPTIVE LOOP FILTERING FOR COLOR FORMAT SUPPORT 有权

    公开(公告)号：US20210329272A1

    公开(公告)日：2021-10-21

    申请号：US17230823

    申请日：2021-04-14

    Applicant: QUALCOMM Incorporated

    Inventor： Dmytro RUSANOVSKYY ,  Yan ZHANG ,  Marta KARCZEWICZ

    IPC: H04N19/186 ,  H04N19/117 ,  H04N19/184 ,  H04N19/174

    Abstract: Systems and techniques are described herein for processing video data. For example, a process can include obtaining a video bitstream, the video bitstream including adaptive loop filter (ALF) data. The process can further include determining a value of an ALF chroma filter signal flag from the ALF data, the value of the ALF chroma filter signal flag indicating whether chroma ALF filter data is signaled in the video bitstream. The process can further include processing at least a portion of a slice of video data based on the value of the ALF chroma filter signal flag.

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