公开(公告)号：US20160373743A1

公开(公告)日：2016-12-22

申请号：US15184118

申请日：2016-06-16

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/11 ,  H04N19/174 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70 ,  H04N19/82

CPC classification number: H04N19/11 ,  H04N19/117 ,  H04N19/136 ,  H04N19/139 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/59 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82

Abstract: A device for decoding video data includes a memory configured to store the video data; and one or more processors configured to decode syntax information that indicates a selected intra prediction mode for the block of video data from among a plurality of intra prediction modes. The one or more processors apply an N-tap intra interpolation filter to neighboring reconstructed samples of the block of video data according to the selected intra prediction mode, wherein N is greater than 2. The one or more processors reconstruct the block of video data based on the filtered neighboring reconstructed samples according to the selected intra prediction mode.

Abstract translation: 用于解码视频数据的设备包括被配置为存储视频数据的存储器; 以及一个或多个处理器，被配置为从多个帧内预测模式中解码指示用于视频数据块的所选帧内预测模式的语法信息。 一个或多个处理器根据所选择的帧内预测模式将N抽头内插滤波器应用于视频数据块的相邻重建样本，其中N大于2.一个或多个处理器重建基于视频数据的块 根据所选择的帧内预测模式对经滤波的相邻重建样本进行处理。

公开(公告)号：US20160366415A1

公开(公告)日：2016-12-15

申请号：US15174820

申请日：2016-06-06

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/136 ,  H04N19/176 ,  H04N19/139 ,  H04N19/51 ,  H04N19/119

CPC classification number: H04N19/136 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/463 ,  H04N19/51 ,  H04N19/577 ,  H04N19/70 ,  H04N19/82

Abstract: Techniques and systems are provided for coding video data. For example, a method of coding video data includes determining one or more illumination compensation parameters for a current block and coding the current block as part of an encoded bitstream using the one or more illumination compensation parameters. In some cases, the method can include determining one or more spatially neighboring samples for the current block and deriving the one or more illumination compensation parameters for the current block based on at least one of the one or more spatially neighboring samples. The method can further include signaling, individually, for the current block, an illumination compensation status in the encoded bitstream. The method can further include signaling at least one of the one or more illumination compensation parameters for the current block in the encoded bitstream.

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一个或多个照明补偿参数，并使用该一个或多个照明补偿参数将当前块编码为编码比特流的一部分。 在一些情况下，该方法可以包括确定当前块的一个或多个空间相邻样本，并且基于一个或多个空间相邻样本中的至少一个来导出当前块的一个或多个照明补偿参数。 该方法还可以包括针对当前块单独地发送编码比特流中的照明补偿状态。 该方法还可以包括对编码比特流中当前块的一个或多个照明补偿参数中的至少一个进行信令。

公开(公告)号：US09516309B2

公开(公告)日：2016-12-06

申请号：US13935041

申请日：2013-07-03

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N11/02 ,  H04N19/30 ,  H04N19/105 ,  H04N19/70 ,  H04N19/147 ,  H04N19/593 ,  H04N19/80 ,  H04N19/82 ,  H04N19/33 ,  H04N19/85 ,  H04N19/86

CPC classification number: H04N19/30 ,  H04N19/105 ,  H04N19/147 ,  H04N19/33 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/85 ,  H04N19/86

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 an enhancement layer weight and a base layer weight, and determines a value of a current video unit based on the difference video layer, a value of a video unit in the enhancement layer weighted by the enhancement layer weight, and a value of a video unit in the base layer weighted by the base layer weight.

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。 处理器确定增强层权重和基本层权重，并且基于差异视频层确定当前视频单元的值，由增强层权重加权的增强层中的视频单元的值和 由基层重量加权的基层中的视频单元。

公开(公告)号：US20160353112A1

公开(公告)日：2016-12-01

申请号：US15166144

申请日：2016-05-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Marta Karczewicz ,  Jianle Chen

IPC: H04N19/13 ,  H04N19/176 ,  H04N19/136 ,  H04N19/122 ,  H04N19/174 ,  H04N19/124

CPC classification number: H04N19/13 ,  H04N19/122 ,  H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/577 ,  H04N19/625 ,  H04N19/91

Abstract: A video coding device includes a memory configured to store video data and processor(s) configured to process at least a portion of the stored video data. The processor(s) are configured to identify a coefficient group (CG) that includes a current transform coefficient of the video data, the CG representing a subset of transform coefficients within a transform unit. The processor(s) are further configured to determine a size of the CG based on a combination of a transform size and one or both of (i) a coding mode associated with the transform unit, or (ii) a transform matrix associated with the transform unit.

Abstract translation: 视频编码装置包括被配置为存储视频数据的存储器和被配置为处理所存储的视频数据的至少一部分的处理器。 处理器被配置为识别包括视频数据的当前变换系数的系数组（CG），CG表示变换单元内的变换系数的子集。 处理器还被配置为基于变换大小和（i）与变换单元相关联的编码模式中的一者或两者的组合来确定CG的大小，或者（ii）与该变换单元相关联的变换矩阵 变换单元。

公开(公告)号：US20160353111A1

公开(公告)日：2016-12-01

申请号：US15166132

申请日：2016-05-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Marta Karczewicz ,  Jianle Chen

IPC: H04N19/13 ,  H04N19/174 ,  H04N19/159 ,  H04N19/577 ,  H04N19/126

CPC classification number: H04N19/13 ,  H04N19/122 ,  H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/577 ,  H04N19/625 ,  H04N19/91

Abstract: Context adaptive binary arithmetic coding (CABAC) techniques are generally described. Aspects of the techniques are generally directed to inheritance-based context initialization. An example video coding device includes a memory configured to store video data, and one or more processors. The processor(s) are configured to initialize context information for a current slice of a current picture by inheriting context information of a previously-coded block of a previously-coded picture of the stored video data as initialized context information for the current slice of the current picture. The processor(s) are further configured to code data of the current slice using the initialized context information.

Abstract translation: 通常描述上下文自适应二进制算术编码（CABAC）技术。 技术方面通常涉及基于继承的上下文初始化。 示例性视频编码设备包括被配置为存储视频数据的存储器和一个或多个处理器。 处理器被配置为通过将存储的视频数据的先前编码的图像的先前编码的块的上下文信息继承为当前图像的当前片段的初始化上下文信息来初始化当前图片的当前片段的上下文信息 当前图片。 处理器还被配置为使用初始化的上下文信息来对当前片的数据进行编码。

公开(公告)号：US20160353110A1

公开(公告)日：2016-12-01

申请号：US15166044

申请日：2016-05-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Xin Zhao ,  Xiang Li ,  Hongbin Liu ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/13 ,  H04N19/70 ,  H04N19/42 ,  H04N19/174 ,  H04N19/159

CPC classification number: H04N19/13 ,  H03M7/4018 ,  H03M7/6011 ,  H04N19/126 ,  H04N19/139 ,  H04N19/146 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/42 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

Abstract: An example method of entropy coding video data includes determining a window size of a plurality of window sizes for a context of a plurality of contexts used in a context-adaptive coding process to entropy code a value for a syntax element of the video data; entropy coding, based on a probability state of the context, a bin of the value for the syntax element; updating a probability state of the context based on the window size and the coded bin. The example method also includes entropy coding a next bin with the same context based on the updated probability state of the context.

Abstract translation: 熵编码视频数据的示例方法包括：确定用于上下文自适应编码处理中使用的多个上下文的上下文的多个窗口大小的窗口大小，以熵编码视频数据的语法元素的值; 熵编码，基于上下文的概率状态，语法元素的值的一个bin; 基于窗口尺寸和编码箱更新上下文的概率状态。 该示例方法还包括基于更新的上下文概率状态对具有相同上下文的下一个bin进行熵编码。

公开(公告)号：US20160353108A1

公开(公告)日：2016-12-01

申请号：US15166068

申请日：2016-05-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Xin Zhao ,  Xiang Li ,  Hongbin Liu ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/126 ,  H04N19/174 ,  H04N19/139 ,  H04N19/13

CPC classification number: H04N19/13 ,  H03M7/4018 ,  H03M7/6011 ,  H04N19/126 ,  H04N19/139 ,  H04N19/146 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/42 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

Abstract: An example method of entropy coding video data includes obtaining a pre-defined initialization value for a context of a plurality of contexts used in a context-adaptive entropy coding process to entropy code a value for a syntax element in a slice of the video data, wherein the pre-defined initialization value is stored with N-bit precision; determining, using a look-up table and based on the pre-defined initialization value, an initial probability state of the context for the slice of the video data, wherein a number of possible probability states for the context is greater than two raised to the power of N; and entropy coding, based on the initial probability state of the context, a bin of the value for the syntax element.

Abstract translation: 熵编码视频数据的示例方法包括：获得用于在上下文自适应熵编码处理中使用的多个上下文的上下文的预定义初始值，以熵编码视频数据片中语法元素的值， 其中预定义的初始化值以N位精度存储; 使用查找表并且基于预定义的初始化值来确定视频数据的切片的上下文的初始概率状态，其中上下文的可能概率状态的数量大于2 N的力量 以及基于上下文的初始概率状态的熵编码，用于语法元素的值的bin。

公开(公告)号：US09510020B2

公开(公告)日：2016-11-29

申请号：US13655009

申请日：2012-10-18

Applicant: Qualcomm Incorporated

Inventor： Geert Van der Auwera ,  Marta Karczewicz ,  Xianglin Wang

IPC: H04N7/32 ,  H04N19/86 ,  H04N19/176 ,  H04N19/70 ,  H04N19/117 ,  H04N19/157 ,  H04N19/182 ,  H04N19/82 ,  H04N19/12 ,  H04N19/61

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

Abstract: Techniques for coding video data include coding a plurality of blocks of video data, wherein at least one block of the plurality of blocks of video data is coded using a coding mode that is one of an intra pulse code modulation (IPCM) coding mode and a lossless coding mode. In some examples, the lossless coding mode may use prediction. The techniques further include assigning a non-zero quantization parameter (QP) value for the at least one block coded using the coding mode. The techniques also include performing deblocking filtering on one or more of the plurality of blocks of video data based on the coding mode used to code the at least one block and the assigned non-zero QP value for the at least one block.

Abstract translation: 用于对视频数据进行编码的技术包括对多个视频数据块进行编码，其中使用作为帧内脉码调制（IPCM）编码模式和编码模式之一的编码模式来对多个视频数据块中的至少一个块进行编码 无损编码模式。 在一些示例中，无损编码模式可以使用预测。 所述技术还包括为使用编码模式编码的至少一个块分配非零量化参数（QP）值。 所述技术还包括：基于用于对所述至少一个块进行编码的编码模式和所述至少一个块的所分配的非零QP值，对所述多个视频数据块中的一个或多个块执行去块滤波。

公开(公告)号：US09510000B2

公开(公告)日：2016-11-29

申请号：US14635958

申请日：2015-03-02

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N19/105 ,  H04N19/14 ,  H04N19/176 ,  H04N19/70 ,  H04N19/196 ,  H04N19/117 ,  H04N19/463 ,  H04N19/167

CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/14 ,  H04N19/167 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/70

Abstract: This disclosure describes techniques for performing sample adaptive offset signaling and coding in a video coding process. Techniques of the disclosure include both a merge-based and prediction-based signaling process for sample adaptive offset information (i.e., offset values and offset type). The techniques includes determining offset information for a current partition, comparing the offset information of the current partition with offset information of one or more neighbor partitions, coding a merge instruction in the case that the offset information of one of the one or more neighbor partitions is the same as the offset information of the current partition, and coding one of a plurality of prediction instructions in the case that the offset information of the one or more neighbor partitions is not the same as the offset information of the current partition.

公开(公告)号：US09445132B2

公开(公告)日：2016-09-13

申请号：US14021589

申请日：2013-09-09

Applicant: QUALCOMM Incorporated

Inventor： Liwei Guo ,  Marta Karczewicz ,  Joel Sole Rojals ,  Wei-Jung Chien ,  Rajan Laxman Joshi

IPC: G06K9/72 ,  H04N19/91 ,  H04N19/60 ,  H04N19/13 ,  H04N19/129 ,  H04N19/18

CPC classification number: H04N19/91 ,  H04N19/129 ,  H04N19/13 ,  H04N19/18 ,  H04N19/60

Abstract: In some examples, a video coder employs a two-level technique to code information that identifies a position within the block of transform coefficients of one of the coefficients that is a last significant coefficient (LSC) for the block according to a scanning order associated with the block of transform coefficients. For example, a video coder may code a sub-block position that identifies a position of one of the sub-blocks that includes the LSC within the block, and code a coefficient position that identifies a position of the LSC within the sub-block that includes the LSC.

Abstract translation: 在一些示例中，视频编码器采用两级技术来编码信息，该信息根据与该数据块相关联的扫描顺序来识别作为该块的最后有效系数（LSC）的一个系数的变换系数块内的位置 变换系数块。 例如，视频编码器可以对在块内标识包括LSC的子块之一的位置的子块位置进行编码，并对识别子块内的LSC的位置的系数位置进行编码， 包括LSC。