公开(公告)号：US20160373745A1

公开(公告)日：2016-12-22

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 ,  H04N19/13 ,  H04N19/159 ,  H04N19/184

CPC classification number: H04N19/119 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/70 ,  H04N19/91

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.

Abstract translation: 编码视频数据的示例性方法包括从编码视频比特流中编码一个语法元素，该语法元素指示转置处理是否应用于当前视频数据块的调色板的调色板索引; 从经编码的视频比特流和编码视频比特流中的位于语法元素之后的位置，该语法元素指示转置处理是否被应用于当前视频数据块的调色板的调色板索引，一个或多个语法元素相关 到当前视频数据块的Δ量化参数（QP）和/或色度QP偏移量; 以及基于用于当前视频数据块的调色板和与当前视频数据块的delta QP和/或chroma QP偏移相关的一个或多个语法元素来解码当前视频数据块。

公开(公告)号：US20160373742A1

公开(公告)日：2016-12-22

申请号：US15184067

申请日：2016-06-16

Applicant: QUALCOMM Incorporated

Inventor： Xin Zhao ,  Jianle Chen ,  Li Zhang ,  Marta Karczewicz

IPC: H04N19/11 ,  H04N19/147 ,  H04N19/18 ,  H04N19/176

CPC classification number: H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91

Abstract: A device includes one or more processors configured to derive M most probable modes (MPMs) for intra prediction of a block of video data. A syntax element that indicates whether a MPM index or a non-MPM index is used to indicate a selected intra prediction mode of the plurality of intra prediction modes for intra prediction of the block of video data is decoded. The one or more processors are configured such that, based on the MPM index indicating the selected intra prediction mode, the one or more processors decode the non-MPM index. The non-MPM index is encoded in the bitstream as a code word shorter than [log2 N] bits if the non-MPM index satisfies a criterion and is encoded in the bitstream as a fixed length code with [log2 N] bits otherwise. The one or more processors reconstruct the block based on the selected intra prediction mode.

Abstract translation: 一种设备包括被配置为导出M个最可能模式（MPM）的一个或多个处理器，用于视频数据块的帧内预测。 指示MPM索引或非MPM索引是否用于指示用于视频数据块的帧内预测的多个帧内预测模式的所选帧内预测模式的语法元素被解码。 一个或多个处理器被配置为使得基于指示所选择的帧内预测模式的MPM索引，一个或多个处理器解码非MPM索引。 如果非MPM索引满足标准，则将非MPM索引作为比[log2N]比特短的代码字被编码在比特流中，否则以[log2 N]比特被编码在比特流中作为固定长度码。 一个或多个处理器基于所选择的帧内预测模式重构块。

公开(公告)号：US20160373741A1

公开(公告)日：2016-12-22

申请号：US15184033

申请日：2016-06-16

Applicant: QUALCOMM Incorporated

Inventor： Xin Zhao ,  Jianle Chen ,  Li Zhang ,  Marta Karczewicz

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/70 ,  H04N19/593

CPC classification number: H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91

Abstract: A device includes one or more processors configured to derive, from among a plurality of intra prediction modes, M most probable modes (MPMs) for intra prediction of a block of video data. A syntax element indicating whether a MPM index or a non-MPM index is used to indicate a selected intra prediction mode of the plurality of intra prediction modes for intra prediction of the block of video data is decoded. Based on the indicated one of the MPM index or the non-MPM index being the MPM index, the one or more processors select, for each of one or more context-modeled bins of the MPM index, based on intra prediction modes used to decode one or more neighboring blocks, a context index for the context-modeled bin. The one or more processors reconstruct the block of video data based on the selected intra prediction mode.

Abstract translation: 一种设备包括被配置为从多个帧内预测模式中导出用于视频数据块的帧内预测的M个最可能模式（MPM）的一个或多个处理器。 解码表示MPM索引或非MPM索引是否用于指示用于视频数据块的帧内预测的多个帧内预测模式的所选帧内预测模式的语法元素。 基于所指示的一个MPM索引或非MPM索引作为MPM索引，一个或多个处理器针对MPM索引的一个或多个上下文建模的存储体中的每一个，基于用于解码的帧内预测模式来选择 一个或多个相邻块，用于上下文建模的仓的上下文索引。 一个或多个处理器基于所选择的帧内预测模式重构视频数据块。

公开(公告)号：US20160366416A1

公开(公告)日：2016-12-15

申请号：US15174834

申请日：2016-06-06

Applicant: QUALCOMM Incorporated

Inventor： Hongbin Liu ,  Ying Chen ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/136 ,  H04N19/119 ,  H04N19/176 ,  H04N19/51

CPC classification number: H04N19/136 ,  G06T7/20 ,  G06T7/246 ,  G06T7/248 ,  H04N19/109 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/463 ,  H04N19/50 ,  H04N19/51 ,  H04N19/52 ,  H04N19/583 ,  H04N19/70

Abstract: Techniques and systems are provided for coding video data. For example, a method of coding video data includes determining motion information for a current block and determining an illumination compensation status for the current block. The method further includes coding the current block based on the motion information and the illumination compensation status for the current block. In some examples, the method further includes determining the motion information for the current block based on motion information of a candidate block. In such examples, the method further includes determining an illumination compensation status of the candidate block and deriving the illumination compensation status for the current block based on the illumination compensation status of the candidate block.

Abstract translation: 提供了用于编码视频数据的技术和系统。 例如，编码视频数据的方法包括确定当前块的运动信息并确定当前块的照明补偿状态。 该方法还包括基于当前块的运动信息和照明补偿状态对当前块进行编码。 在一些示例中，该方法还包括基于候选块的运动信息确定当前块的运动信息。 在这种示例中，该方法还包括基于候选块的照明补偿状态来确定候选块的照明补偿状态并导出当前块的照明补偿状态。

公开(公告)号：US20160360215A1

公开(公告)日：2016-12-08

申请号：US15176034

申请日：2016-06-07

Applicant: QUALCOMM Incorporated

Inventor： Dmytro Rusanovskyy ,  Sungwon Lee ,  Done Bugdayci Sansli ,  Joel Sole Rojals ,  Adarsh Krishnan Ramasubramonian ,  Marta Karczewicz

IPC: H04N19/169 ,  H04N19/615 ,  H04N19/186

CPC classification number: H04N19/1887 ,  H04N19/117 ,  H04N19/136 ,  H04N19/169 ,  H04N19/186 ,  H04N19/615 ,  H04N19/85 ,  H04N19/98

Abstract: This disclosure relates to processing video data, including processing video data to conform to a high dynamic range (HDR)/wide color gamut (WCG) color container. The techniques apply, on an encoding side, pre-processing of color values prior to application of a static transfer function and/or apply post-processing on the output from the application of the static transfer function. By applying pre-processing, the examples may generate color values that when compacted into a different dynamic range by application of the static transfer function linearize the output codewords. By applying post-processing, the examples may increase signal to quantization noise ratio. The examples may apply the inverse of the operations on the encoding side on the decoding side to reconstruct the color values.

Abstract translation: 本公开涉及处理视频数据，包括处理视频数据以符合高动态范围（HDR）/宽色域（WCG）颜色容器。 该技术在编码方面适用于在施加静态传递函数之前对颜色值进行预处理和/或对静态传递函数的应用的输出应用后处理。 通过应用预处理，这些示例可以产生当通过应用静态传递函数将输出码字线性化时压缩成不同动态范围的颜色值。 通过应用后处理，这些示例可以将信号增加到量化噪声比。 这些示例可以将解码侧的编码侧的操作的倒数应用于重构颜色值。

公开(公告)号：US20160360214A1

公开(公告)日：2016-12-08

申请号：US15175570

申请日：2016-06-07

Applicant: QUALCOMM Incorporated

Inventor： Joel Sole Rojals ,  Sungwon Lee ,  Dmytro Rusanovskyy ,  Adarsh Krishnan Ramasubramonian ,  Done Bugdayci Sansli ,  Marta Karczewicz

IPC: H04N19/187 ,  H04N19/136 ,  H04N19/132 ,  H04N19/182 ,  H04N19/176

CPC classification number: H04N19/187 ,  H04N1/64 ,  H04N5/20 ,  H04N9/68 ,  H04N19/12 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/46

Abstract: A device may determine, based on data in a bitstream, a luma sample (Y) of a pixel, a Cb sample of the pixel, and the Cr sample of the pixel. Furthermore, the device may obtain, from the bitstream, a first scaling factor and a second scaling factor. Additionally, the device may determine, based on the first scaling factor, the Cb sample for the pixel, and Y, a converted B sample (B′) for the pixel. The device may determine, based on the second scaling factor, the Cr sample for the pixel, and Y, a converted R sample (R′) for the pixel. The device may apply an electro-optical transfer function (EOTF) to convert Y′, R′, and B′ to a luminance sample for the pixel, a R sample for the pixel, and a B sample for the pixel, respectively.

Abstract translation: 设备可以基于比特流中的数据来确定像素的亮度样本（Y），像素的Cb样本和像素的Cr样本。 此外，设备可以从比特流获得第一缩放因子和第二缩放因子。 另外，设备可以基于第一缩放因子确定像素的Cb样本，以及Y，用于像素的转换的B样本（B'）。 该装置可以基于第二比例因子确定该像素的Cr样本，并且Y确定该像素的经转换的R个样本（R'）。 该装置可以应用电光传递函数（EOTF）来将Y'，R'和B'转换为像素的亮度样本，像素的R采样和像素的B采样。

公开(公告)号：US20160337662A1

公开(公告)日：2016-11-17

申请号：US15151429

申请日：2016-05-10

Applicant: QUALCOMM Incorporated

Inventor： Chao Pang ,  Krishnakanth Rapaka ,  Vadim Seregin ,  Marta Karczewicz ,  Rajan Laxman Joshi

IPC: H04N19/52 ,  H04N19/182 ,  H04N19/176

CPC classification number: H04N19/52 ,  H04N19/176 ,  H04N19/182 ,  H04N19/42 ,  H04N19/513 ,  H04N19/523 ,  H04N19/70

Abstract: An example method of decoding video data includes obtaining, from a video bitstream, a representation of a difference between a motion vector (MV) predictor and a MV that identifies a predictor block for a current block of video data in a current picture; obtaining, from the video bitstream, a syntax element indicating whether adaptive motion vector resolution (AMVR) is used for the current block; determining, based on the representation of the difference between the MV predictor and the MV that identifies the predictor block, a value of the MV; storing the value of the MV at fractional-pixel resolution regardless of whether AMVR is used for the current block and regardless of whether the predictor block is included in the current picture; determining, based on the value of the stored MV, pixel values of the predictor block; and reconstructing the current block based on the pixel values of the predictor block.

Abstract translation: 解码视频数据的示例性方法包括从视频比特流获得运动矢量（MV）预测器和标识当前图像中的当前视频数据块的预测块的MV之间的差异的表示; 从视频比特流获取指示对当前块使用自适应运动矢量分辨率（AMVR）的语法元素; 基于MV预测器和识别预测器块的MV之间的差异的表示来确定MV的值; 无论是否将AMVR用于当前块而不管预测块是否包含在当前图像中，都以分数像素分辨率存储MV的值; 基于所存储的MV的值来确定预测器块的像素值; 并且基于预测器块的像素值来重建当前块。

公开(公告)号：US09497473B2

公开(公告)日：2016-11-15

申请号：US14504097

申请日：2014-10-01

Applicant: QUALCOMM Incorporated

Inventor： Wei Pu ,  Jianle Chen ,  Marta Karczewicz ,  Woo-Shik Kim ,  Joel Sole Rojals

IPC: H04N19/70 ,  H04N19/44 ,  H04N19/597 ,  H04N19/105 ,  H04N19/136 ,  H04N19/50

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/136 ,  H04N19/50 ,  H04N19/597 ,  H04N19/70

Abstract: In one example, a device for coding video data includes a memory configured to store video data, and a video coder configured to code a value for a syntax element representative of whether a high bit depth is enabled for the video data, and when the value for the syntax element indicates that the high bit depth is enabled: code a value for a syntax element representative of the high bit depth for one or more parameters of the video data, code values for the parameters such that the values for the parameters are representative of bit depths that are based on the value for the syntax element representative of the high bit depth, and code the video data based at least in part on the values for the parameters.

Abstract translation: 在一个示例中，用于编码视频数据的设备包括被配置为存储视频数据的存储器，以及视频编码器，被配置为对代表视频数据的高位深度是否启用的语法元素的值进行编码， 因为语法元素指示高位深度被启用：为代表视频数据的一个或多个参数的代表高比特深度的语法元素的值编码，用于参数的代码值使得参数的值代表 基于表示高位深度的语法元素的值的位深度，并且至少部分地基于参数的值对视频数据进行编码。

公开(公告)号：US20160309154A1

公开(公告)日：2016-10-20

申请号：US15099256

申请日：2016-04-14

Applicant: QUALCOMM Incorporated

Inventor： Dmytro Rusanovskyy ,  Done Bugdayci Sansli ,  Joel Sole Rojals ,  Marta Karczewicz ,  Sungwon Lee ,  Adarsh Krishnan Ramasubramonian

IPC: H04N19/136 ,  G06T5/00 ,  H04N19/124 ,  H04N19/176 ,  G06T7/40 ,  H04N19/70

Abstract: This disclosure relates to processing video data, including processing video data to conform to a high dynamic range/wide color gamut (HDR/WCG) color container. As will be explained in more detail below, the techniques of the disclosure including dynamic range adjustment (DRA) parameters and apply the DRA parameters to video data in order to make better use of an HDR/WCG color container. The techniques of this disclosure may also include signaling syntax elements that allow a video decoder or video post processing device to reverse the DRA techniques of this disclosure to reconstruct the original or native color container of the video data.

Abstract translation: 本公开涉及处理视频数据，包括处理视频数据以符合高动态范围/宽色域（HDR / WCG）颜色容器。 如下面将更详细地解释的，本公开的技术包括动态范围调整（DRA）参数并将DRA参数应用于视频数据，以便更好地利用HDR / WCG颜色容器。 本公开的技术还可以包括允许视频解码器或视频后处理设备反转本公开的DRA技术以重建视频数据的原始或本机颜色容器的信令语法元素。

公开(公告)号：US09467692B2

公开(公告)日：2016-10-11

申请号：US14011441

申请日：2013-08-27

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Jianle Chen ,  Marta Karczewicz ,  Vadim Seregin

IPC: H04N19/00 ,  H04N19/187 ,  H04N19/593 ,  H04N19/30 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/129 ,  H04N19/11 ,  H04N19/103 ,  H04N19/117 ,  H04N19/136 ,  H04N19/18 ,  H04N19/33 ,  H04N19/59

CPC classification number: H04N19/30 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/129 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/187 ,  H04N19/33 ,  H04N19/46 ,  H04N19/59 ,  H04N19/593

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 video information associated with a reference layer and a corresponding enhancement layer. The processor determines a value of a video unit positioned at a position within the enhancement layer based at least in part on an intra prediction value weighted by a first weighting factor, wherein the intra prediction value is determined based on at least one additional video unit in the enhancement layer, and a value of a co-located video unit in the reference layer weighted by a second weighting factor, wherein the co-located video unit is located at a position in the reference layer corresponding to the position of the video unit in the enhancement layer. In some embodiments, the at least one of the first and second weighting factors is between 0 and 1.

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。 存储单元存储与参考层和对应的增强层相关联的视频信息。 处理器至少部分地基于由第一加权因子加权的帧内预测值来确定位于增强层内的位置处的视频单元的值，其中帧内预测值基于至少一个附加视频单元 所述增强层和由第二加权因子加权的参考层中的同位置视频单元的值，其中所述同位置视频单元位于与所述视频单元的位置对应的参考层中的位置 增强层。 在一些实施例中，第一和第二加权因子中的至少一个在0和1之间。