公开(公告)号：US09357211B2

公开(公告)日：2016-05-31

申请号：US14137101

申请日：2013-12-20

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Jianle Chen ,  Marta Karczewicz ,  Vadim Seregin ,  Wei Pu ,  Krishnakanth Rapaka ,  Liwei Guo

IPC: H04N11/02 ,  H04N19/187 ,  H04N19/597 ,  H04N19/52 ,  H04N19/593 ,  H04N19/154 ,  H04N19/59

CPC classification number: H04N19/187 ,  H04N19/154 ,  H04N19/52 ,  H04N19/59 ,  H04N19/593 ,  H04N19/597

Abstract: An apparatus configured to code (e.g., encode or decode) video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a base layer and an enhancement layer. The processor is configured to up-sample a base layer reference block by using an up-sampling filter when the base and enhancement layers have different resolutions; perform motion compensation interpolation by filtering the up-sampled base layer reference block; determine base layer residual information based on the filtered up-sampled base layer reference block; determine weighted base layer residual information by applying a weighting factor to the base layer residual information; and determine an enhancement layer block based on the weighted base layer residual information. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编码（例如，编码或解码）的装置包括与存储器单元通信的存储器单元和处理器。 存储器单元被配置为存储与基本层和增强层相关联的视频信息。 处理器被配置为当基层和增强层具有不同分辨率时，通过使用上采样滤波器对基层参考块进行采样; 通过对上采样的基层参考块进行滤波来执行运动补偿内插; 基于滤波的上采样基层参考块确定基层残差信息; 通过对所述基本层残差信息应用加权因子来确定加权基本层残差信息; 并且基于加权的基本层残差信息来确定增强层块。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US09357195B2

公开(公告)日：2016-05-31

申请号：US13968362

申请日：2013-08-15

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang ,  Marta Karczewicz

IPC: H04N19/00 ,  H04N13/00 ,  H04N19/597 ,  H04N19/52

CPC classification number: H04N13/10 ,  H04N19/52 ,  H04N19/597

Abstract: A video coder determines a first picture order count (POC) value of a first reference picture associated with a first motion vector of a corresponding block that points in a first direction and determines whether a first reference picture list for the current block includes a reference picture having the first POC value; in response to the reference picture list not including the reference picture having the first POC value, determines a second POC value of a second reference picture associated with a second motion vector of the corresponding block that points in a second direction, determines whether the first reference picture list for the current block includes a reference picture having the second POC value and in response to the first reference picture list including the reference picture having the second POC value, decodes the current motion vector using the second motion vector of the corresponding block.

Abstract translation: 视频编码器确定与指向第一方向的相应块的第一运动矢量相关联的第一参考图片的第一图像顺序计数（POC）值，并确定当前块的第一参考图片列表是否包括参考图片 具有第一个POC值; 响应于不包括具有第一POC值的参考图像的参考图像列表，确定与在第二方向上指向的相应块的第二运动矢量相关联的第二参考图像的第二POC值，确定第一参考 当前块的图像列表包括具有第二POC值的参考图像，并且响应于包括具有第二POC值的参考图像的第一参考图像列表，使用相应块的第二运动矢量解码当前运动矢量。

公开(公告)号：US09357185B2

公开(公告)日：2016-05-31

申请号：US13669096

申请日：2012-11-05

Applicant: Qualcomm Incorporated

Inventor： Liwei Guo ,  Wei-Jung Chien ,  Marta Karczewicz

IPC: H04N19/10 ,  H03M7/40 ,  H04N19/176 ,  H04N19/13 ,  H04N19/18

CPC classification number: H04N19/10 ,  H03M7/4018 ,  H03M7/4037 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18

Abstract: A video encoder is configured to encode a binary sting indicating a position of a last significant coefficient within a video block. A video decoder is configured to decode the encoded binary string. The string may be coded using context adaptive binary arithmetic coding (CABAC). Binary indices of the binary string may be assigned a context. The context may be determined according to a mapping function. A context may be a assigned to one or more binary indices where each index is associated with a different block size. The last binary index of a 16×16 video block may share a context with the last binary index of a 32×32 video block.

Abstract translation: 视频编码器被配置为对指示视频块内的最后有效系数的位置的二进制编码进行编码。 视频解码器被配置为对编码的二进制串进行解码。 字符串可以使用上下文自适应二进制算术编码（CABAC）来编码。 二进制字符串的二进制索引可以被分配上下文。 上下文可以根据映射函数来确定。 上下文可以被分配给一个或多个二进制索引，其中每个索引与不同的块大小相关联。 16×16视频块的最后二进制索引可以与32×32视频块的最后二进制索引共享上下文。

公开(公告)号：US20160150234A1

公开(公告)日：2016-05-26

申请号：US14952438

申请日：2015-11-25

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Liwei Guo ,  Marta Karczewicz ,  Wei Pu ,  Joel Sole Rojals

IPC: H04N19/176 ,  H04N19/184 ,  H04N19/13 ,  H04N19/103

CPC classification number: H04N19/176 ,  H04N19/13 ,  H04N19/157 ,  H04N19/593

Abstract: A device for decoding video data may be configured to determine a block of the video data is coded using a palette-based coding mode; determine a sample of the block of video data is coded using a copy from top mode or an index mode; and decode a greater than zero flag to indicate whether a run value is greater than zero, wherein the run value specifies a number of samples subsequent to the sample that have a same mode as the sample.

Abstract translation: 用于解码视频数据的装置可以被配置为使用基于调色板的编码模式来确定视频数据的块被编码; 使用从顶部模式或索引模式的副本来确定视频数据块的样本被编码; 并且解码大于零的标志以指示运行值是否大于零，其中运行值指定样本之后的采样数与采样具有相同模式的样本数。

公开(公告)号：US20160134876A1

公开(公告)日：2016-05-12

申请号：US14536216

申请日：2014-11-07

Applicant: QUALCOMM Incorporated

Inventor： In Suk Chong ,  Sungwon Lee ,  Cheng-Teh Hsieh ,  Marta Karczewicz

IPC: H04N19/176 ,  H04N19/122 ,  H04N19/139 ,  H04N19/105

CPC classification number: H04N19/176 ,  H04N19/103 ,  H04N19/105 ,  H04N19/122 ,  H04N19/137 ,  H04N19/139

Abstract: Provided are techniques for low complexity video coding. For example, a video coder may be configured to calculate a first sum of absolute difference (SAD) value between a CU block and a corresponding block in a reference frame for the largest coding unit (LCU). The video coder may define conditions (e.g., background and/or homogeneous conditions) for the branching based at least in part on the first SAD value. The video coder may also determine the branching based on detecting the background or homogeneous condition, the branching including a first branch corresponding to both a first CU size of the CU block and a second CU size of a sub-block of the CU block. The video coder may then set the first branch to correspond to the first CU size, if the first CU size or the second CU size satisfies the background condition.

Abstract translation: 提供了用于低复杂度视频编码的技术。 例如，视频编码器可以被配置为计算CU块和用于最大编码单元（LCU）的参考帧中的对应块之间的绝对差（SAD）值的第一和。 视频编码器可以至少部分地基于第一SAD值来定义用于分支的条件（例如，背景和/或均匀条件）。 视频编码器还可以基于检测背景或均匀条件来确定分支，该分支包括对应于CU块的第一CU大小和CU块的子块的第二CU大小的第一分支。 如果第一CU大小或第二CU大小满足背景条件，则视频编码器然后可以将第一分支设置为对应于第一CU大小。

公开(公告)号：US09332257B2

公开(公告)日：2016-05-03

申请号：US14038524

申请日：2013-09-26

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Liwei Guo ,  Marta Karczewicz

IPC: H04N7/30 ,  H04N19/593 ,  H04N19/176 ,  H04N19/70 ,  H04N19/96 ,  H04N19/11 ,  H04N19/186 ,  H04N19/645

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/186 ,  H04N19/645 ,  H04N19/70 ,  H04N19/96

Abstract: Systems, methods, and devices for video coding that may obtain a rectangular chroma block having first and second square sub-blocks are disclosed. These systems, methods, and devices may also decode a first coded block flag (CBF) for the first square sub-block to indicate whether the first square sub-block includes at least one nonzero transform coefficient. These systems, methods, and devices may also decode a second CBF for the second square sub-block to indicate whether the second square sub-block includes at least one nonzero transform coefficient and not decoding a CBF for the rectangular chroma block.

Abstract translation: 公开了可获得具有第一和第二平方子块的矩形色度块的用于视频编码的系统，方法和装置。 这些系统，方法和设备还可以解码用于第一平方子块的第一编码块标志（CBF），以指示第一平方子块是否包括至少一个非零变换系数。 这些系统，方法和设备还可以解码用于第二平方子块的第二CBF，以指示第二平方子块是否包括至少一个非零变换系数，并且不解码矩形色度块的CBF。

公开(公告)号：US20160100176A1

公开(公告)日：2016-04-07

申请号：US14875398

申请日：2015-10-05

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/186 ,  H04N19/182

CPC classification number: H04N19/186 ,  H04N19/182 ,  H04N19/593 ,  H04N19/70

Abstract: Techniques are described where a current pixel that cannot be palette mode coded in copy above mode and is not coded in a copy index mode is palette mode coded based on a palette index of a diagonal pixel.

Abstract translation: 描述技术，其中在复制上述模式下不能被调色板模式编码的并且不以复制索引模式编码的当前像素是基于对角像素的调色板索引编码的调色板模式。

公开(公告)号：US20160094852A1

公开(公告)日：2016-03-31

申请号：US14869581

申请日：2015-09-29

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/186 ,  H04N19/13 ,  H04N19/93 ,  H04N19/176 ,  H04N19/103

CPC classification number: H04N19/186 ,  H04N19/103 ,  H04N19/13 ,  H04N19/176 ,  H04N19/70 ,  H04N19/91 ,  H04N19/93

Abstract: A method of decoding video data, the method comprising receiving a run-length sequence indicative of a binary vector, the binary vector comprising indications of locations of escape samples in a block of video data encoded using a palette-based coding mode, decoding the run-length sequence to obtain the binary vector, and decoding the block of video data using the binary vector. The method of claim 1 may further comprise receiving palette entries for the block of video data receiving one or more escape samples, and receiving a plurality of flags indicating the palette mode for each respective pixel in the block of video data.

Abstract translation: 一种解码视频数据的方法，所述方法包括接收指示二进制向量的游程长度序列，所述二进制向量包括使用基于调色板的编码模式编码的视频数据块中的转义样本的位置的指示， 长度序列来获得二进制向量，并使用二进制向量解码视频数据块。 权利要求1的方法还可以包括接收用于接收一个或多个转义样本的视频数据块的调色板条目，以及接收指示视频数据块中每个相应像素的调色板模式的多个标志。

公开(公告)号：US09288507B2

公开(公告)日：2016-03-15

申请号：US14309711

申请日：2014-06-19

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/51 ,  H04N19/583 ,  H04N19/597 ,  H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/176 ,  H04N19/513 ,  H04N19/70

Abstract: Techniques for advanced residual prediction (ARP) for coding video data may include inter-view ARP. Inter-view ARP may include identifying a disparity motion vector (DMV) for a current video block. The DMV is used for inter-view prediction of the current video block based on an inter-view reference video block. The techniques for inter-view ARP may also include identifying temporal reference video blocks in the current and reference views based on a temporal motion vector (TMV) of the inter-view reference video block, and determining a residual predictor block based on a difference between the temporal reference video blocks.

Abstract translation: 用于编码视频数据的高级残差预测（ARP）技术可以包括视频间ARP。 视图间ARP可以包括识别当前视频块的视差运动矢量（DMV）。 DMV用于基于视频间参考视频块的当前视频块的视图间预测。 用于互相观看的ARP的技术还可以包括基于视频间参考视频块的时间运动矢量（TMV）识别当前和参考视图中的时间参考视频块，以及基于视间参考视频块的时间参考视频块之间的差 时间参考视频块。

公开(公告)号：US09264713B2

公开(公告)日：2016-02-16

申请号：US13939037

申请日：2013-07-10

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Marta Karczewicz

IPC: H04N11/02 ,  H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/129 ,  H04N19/14 ,  H04N19/88 ,  H04N19/46

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/88

Abstract: Techniques are described for coding residual data of a prediction residual block with transform skipping. A transform may be skipped for a residual block when the residual block is coded using either a lossless coding mode or a lossy coding mode in a transform skip mode. According to the techniques, based on a transform being skipped for a residual block, a rotation unit included in a video encoder or a video decoder determines whether to rotate the residual block prior to coding residual data of the residual block. In some examples, a rotation value may be explicitly signaled between the video encoder and the video decoder. In other examples, the video encoder and the video decoder may each independently determine whether to rotate the residual block based on a type of boundary at two or more edges of the residual block.

Abstract translation: 描述了用于利用变换跳过对预测残差块的残差数据进行编码的技术。 当在变换跳过模式中使用无损编码模式或有损编码模式对残差块进行编码时，可以跳过残差块的变换。 根据该技术，基于对于残差块跳过的变换，包括在视频编码器或视频解码器中的旋转单元确定在编码残差块的残差数据之前是否旋转残差块。 在一些示例中，旋转值可以在视频编码器和视频解码器之间明确地发出信号。 在其他示例中，视频编码器和视频解码器可以各自独立地基于残差块的两个或多个边缘处的边界类型来独立地确定是否旋转残余块。