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：US09521425B2

公开(公告)日：2016-12-13

申请号：US14218487

申请日：2014-03-18

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang ,  Jewon Kang

IPC: H04N19/51 ,  H04N19/513 ,  H04N19/597 ,  H04N19/52 ,  H04N19/80

CPC classification number: H04N19/513 ,  H04N19/52 ,  H04N19/597 ,  H04N19/80

Abstract: A video decoder performs a neighboring-block based disparity vector (NBDV) derivation process to determine a disparity vector or performs a NBDV refinement (NBDV-R) process to determine the disparity vector. The video decoder uses the disparity vector as a disparity vector for a current block without using a median filtering process on multiple disparity motion vectors, wherein the current block is coded in either a skip mode or a direct mode. Furthermore, the video coder determines pixel values for the current block.

Abstract translation: 视频解码器执行基于相邻块的视差矢量（NBDV）导出处理以确定视差矢量或执行NBDV细化（NBDV-R）处理以确定视差矢量。 视频解码器使用视差矢量作为当前块的视差向量，而不对多个视差运动矢量使用中值滤波处理，其中当前块以跳过模式或直接模式进行编码。 此外，视频编码器确定当前块的像素值。

公开(公告)号：US20160316200A1

公开(公告)日：2016-10-27

申请号：US15103798

申请日：2013-12-13

Applicant: Li ZHANG ,  Hongbin LIU ,  Ying CHEN ,  QUALCOMM INCORPORATED

Inventor： Li Zhang ,  Hongbin Liu ,  Ying Chen

IPC: H04N19/107 ,  H04N19/70 ,  H04N19/463 ,  H04N19/597 ,  H04N19/159 ,  H04N19/182

CPC classification number: H04N19/107 ,  H04N19/159 ,  H04N19/182 ,  H04N19/463 ,  H04N19/597 ,  H04N19/70 ,  H04N19/91

Abstract: This disclosure describes techniques for signaling and processing information indicating simplified depth coding (SDC) for depth intra-prediction and depth inter-prediction modes in a 3D video coding process, such as a process defined by the 3D-HEVC extension to HEVC. In some examples, the disclosure describes techniques for unifying the signaling of SDC for depth intra-prediction and depth inter-prediction modes in 3D video coding. The signaling of SDC can be unified so that a video encoder or video decoder uses the same syntax element for signaling SDC for both the depth intra-prediction mode and the depth inter-prediction mode. Also, in some examples, a video coder may and/or process a residual value generated in the SDC mode using the same syntax structure, or same type of syntax structure, for both the depth intra-prediction mode and depth inter-prediction mode.

Abstract translation: 本公开描述了用于在3D视频编码过程（诸如由HEVC的3D-HEVC扩展定义的过程）中用于信令和处理用于指示用于深度帧内预测和深度帧间预测模式的简化深度编码（SDC）的信息的技术。 在一些示例中，本公开描述了用于在3D视频编码中统一SDC的信令用于深度帧内预测和深度帧间预测模式的技术。 可以统一SDC的信令，使得视频编码器或视频解码器使用相同的语法元素用于信令SDC用于深度帧内预测模式和深度帧间预测模式。 此外，在一些示例中，视频编码器可以使用与深度帧内预测模式和深度帧间预测模式两者相同的语法结构或相同类型的语法结构来处理在SDC模式中生成的残差值。

公开(公告)号：US20160286232A1

公开(公告)日：2016-09-29

申请号：US15080480

申请日：2016-03-24

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/119 ,  H04N19/139 ,  H04N19/44 ,  H04N19/70

CPC classification number: H04N19/513 ,  H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56 ,  H04N19/57 ,  H04N19/70 ,  H04N19/96

Abstract: In an example, a method of processing video data includes splitting a current block of video data into a plurality of sub-blocks for deriving motion information of the current block, where the motion information indicates motion of the current block relative to reference video data. The method also includes deriving, separately for each respective sub-block of the plurality of sub-blocks, motion information comprising performing a motion search for a first set of reference data that corresponds to a second set of reference data outside of each respective sub-block. The method also includes decoding the plurality of sub-blocks based on the derived motion information and without decoding syntax elements representative of the motion information.

Abstract translation: 在一个示例中，一种处理视频数据的方法包括：将当前视频数据块分解成多个子块，用于导出当前块的运动信息，其中运动信息指示当前块相对于参考视频数据的运动。 该方法还包括为多个子块中的每个相应子块分别导出运动信息，其包括对与第一组参考数据进行运动搜索，第一组参考数据对应于每个各个子块之外的第二组参考数据， 块。 该方法还包括基于导出的运动信息来解码多个子块，并且不对代表运动信息的语法元素进行解码。

公开(公告)号：US20160277762A1

公开(公告)日：2016-09-22

申请号：US15073171

申请日：2016-03-17

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/593 ,  H04N19/117 ,  H04N19/70 ,  H04N19/80 ,  H04N19/186 ,  H04N19/44

CPC classification number: H04N19/593 ,  H04N19/117 ,  H04N19/167 ,  H04N19/176 ,  H04N19/59

Abstract: Example techniques related to linear model (LM) prediction decoding or encoding are described. A video decoder or video encoder determines which filter to apply from a set of filters to downsample samples of a luma block and generate a predictive block for a corresponding chroma block based on characteristics of the chroma block.

Abstract translation: 描述与线性模型（LM）预测解码或编码相关的示例技术。 视频解码器或视频编码器确定从一组滤波器应用哪个滤波器到下采样亮度块的样本，并且基于色度块的特性为相应的色度块生成预测块。

公开(公告)号：US09438926B2

公开(公告)日：2016-09-06

申请号：US14133951

申请日：2013-12-19

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen

IPC: H04N11/02 ,  H04N19/52 ,  H04N19/597

CPC classification number: H04N19/52 ,  H04N19/597

Abstract: Techniques are described for determining whether a block in a candidate reference picture is available. A video coder may determine a location of a co-located largest coding unit (CLCU) in the candidate reference picture, where the CLCU is co-located with a LCU in a current picture, and the LCU includes a current block that is to be inter-predicted. The video coder may determine whether a block in the candidate reference picture is available based on a location of the block in the candidate reference picture relative to the location of the CLCU. If the block in the candidate reference picture is unavailable, the video coder may derive a disparity vector for the current block from a block other than the block determined to be unavailable.

Abstract translation: 描述了用于确定候选参考图片中的块是否可用的技术。 视频编码器可以在候选参考图像中确定共同位置最大编码单元（CLCU）的位置，其中CLCU与当前图像中的LCU位于同一位置，并且LCU包括将要存在的当前块 相互预测。 视频编码器可以基于候选参考图片中的块相对于CLCU的位置的位置来确定候选参考图片中的块是否可用。 如果候选参考图像中的块不可用，则视频编码器可以从除被确定为不可用的块之外的块中导出当前块的视差矢量。

公开(公告)号：US20160219283A1

公开(公告)日：2016-07-28

申请号：US15006994

申请日：2016-01-26

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/186 ,  H04N19/65 ,  H04N19/52 ,  H04N19/593 ,  H04N19/96 ,  H04N19/13 ,  H04N19/124 ,  H04N19/105 ,  H04N19/176 ,  H04N19/44

CPC classification number: H04N19/186 ,  H04N19/105 ,  H04N19/463 ,  H04N19/593

Abstract: A system and method for encoding and decoding video data. A predicted residual signal of a target color component is determined as a function of one or more linear parameters of a linear model and of a residual signal of a source color component. A residual signal of the target color component is determined as a function of a remaining residual signal of the target color component and of the predicted residual signal of the target color component.

Abstract translation: 一种用于对视频数据进行编码和解码的系统和方法。 根据线性模型的一个或多个线性参数和源颜色分量的残留信号来确定目标颜色分量的预测残差信号。 根据目标颜色成分的剩余残留信号和目标色彩分量的预测残差信号确定目标色彩分量的残差信号。

公开(公告)号：US09398284B2

公开(公告)日：2016-07-19

申请号：US13968140

申请日：2013-08-15

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang ,  Adarsh Krishnan Ramasubramonian

IPC: H04N19/00 ,  H04N13/00 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N13/161 ,  H04N19/597 ,  H04N19/70

Abstract: In one example, a video coder, such as a video encoder or a video decoder, is configured to code a value for a layer identifier in a slice header for a current slice in a current layer of multi-layer video data, and, when the value for the layer identifier is not equal to zero, code a first set of syntax elements in accordance with a base video coding standard, and code a second set of one or more syntax elements in accordance with an extension to the base video coding standard. The second set of syntax elements may include a syntax element representative of a position for an identifier of an inter-layer reference picture of a reference layer in a reference picture list, and the video coder may construct the reference picture list such that the identifier of the inter-layer reference picture is located in the determined position.

Abstract translation: 在一个示例中，诸如视频编码器或视频解码器的视频编码器被配置为对当前层中的多层视频数据中的当前片段的片标题中的层标识符的值进行编码，并且当 层标识符的值不等于零，根据基本视频编码标准对第一组语法元素进行编码，并且根据对基本视频编码标准的扩展来编码第二组一个或多个语法元素 。 第二组语法元素可以包括表示参考图片列表中参考层的层间参考图片的标识符的位置的语法元素，并且视频编码器可以构建参考图片列表，使得参考图片列表的标识符 层间参考图片位于确定的位置。

公开(公告)号：US20160165263A1

公开(公告)日：2016-06-09

申请号：US14906860

申请日：2013-12-24

Applicant: QUALCOMM INCORPORATED

Inventor： Li Zhang ,  Ying Chen ,  Vijayaraghavan Thirumalai ,  Hongbin Liu

IPC: H04N19/597 ,  H04N19/52 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/597 ,  H04N19/52 ,  H04N19/70 ,  H04N19/96

Abstract: A video coder determines a candidate for inclusion in a candidate list for a current prediction unit (PU). The candidate is based on motion parameters of a plurality of sub-PUs of the current PU. If a reference block corresponding to a sub-PU is not coded using motion compensated prediction, the video coder sets the motion parameters of the sub-PU to default motion parameters. For each respective sub-PU from the plurality of sub-PUs, if a reference block for the respective sub-PU is not coded using motion compensated prediction, the motion parameters of the respective sub-PU are not set in response to a subsequent determination that a reference block for any later sub-PU in an order is coded using motion compensated prediction.

Abstract translation: 视频编码器确定用于包括在当前预测单元（PU）的候选列表中的候选。 候选者基于当前PU的多个子PU的运动参数。 如果对应于子PU的参考块不使用运动补偿预测进行编码，则视频编码器将子PU的运动参数设置为默认运动参数。 对于来自多个子PU的各个子PU，如果不使用运动补偿预测对各个子PU的参考块进行编码，则不响应于随后的确定来设置各个子PU的运动参数 使用运动补偿预测编码用于任何后续子PU的参考块。

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。