公开(公告)号：US20170064336A1

公开(公告)日：2017-03-02

申请号：US15252986

申请日：2016-08-31

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Marta Karczewicz ,  Jianle Chen

IPC: H04N19/61 ,  H04N19/96 ,  H04N19/122 ,  H04N19/124

CPC classification number: H04N19/61 ,  H04N19/122 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/197 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: A video coder, such as a video encoder or a video decoder, uses a first Rice parameter derivation method and a second Rice parameter derivation method for coding coefficient levels of the TU. The first Rice parameter derivation method is a statistics-based derivation method. The second Rice parameter derivation method is a template-based derivation method.

Abstract translation: 诸如视频编码器或视频解码器的视频编码器使用第一Rice参数导出方法和第二Rice参数导出方法来编码TU的系数级。 第一个Rice参数推导方法是基于统计的推导方法。 第二个Rice参数推导方法是基于模板的推导方法。

公开(公告)号：US09554150B2

公开(公告)日：2017-01-24

申请号：US14489679

申请日：2014-09-18

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen

IPC: H04N7/12 ,  H04N15/00 ,  H04N19/52 ,  H04N19/136 ,  H04N19/44 ,  H04N19/50 ,  H04N19/597 ,  H04N19/56 ,  H04N19/70 ,  H04N19/577

CPC classification number: H04N19/52 ,  H04N19/136 ,  H04N19/44 ,  H04N19/50 ,  H04N19/56 ,  H04N19/577 ,  H04N19/597 ,  H04N19/70

Abstract: A video coder generates a list of merging candidates for coding a video block of the 3D video. A maximum number of merging candidates in the list of merging candidates may be equal to 6. As part of generating the list of merging candidates, the video coder determines whether a number of merging candidates in the list of merging candidates is less than 5. If so, the video coder derives one or more combined bi-predictive merging candidates. The video coder includes the one or more combined bi-predictive merging candidates in the list of merging candidates.

Abstract translation: 视频编码器生成用于对3D视频的视频块进行编码的合并候选的列表。 合并候选列表中的最大合并候选数可以等于6.作为生成合并候选列表的一部分，视频编码器确定合并候选列表中的合并候选数是否小于5.如果 因此，视频编码器导出一个或多个组合的双重预测合并候选。 视频编码器包括合并候选列表中的一个或多个组合的双重预测合并候选。

公开(公告)号：US09549180B2

公开(公告)日：2017-01-17

申请号：US13865894

申请日：2013-04-18

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang ,  Marta Karczewicz

IPC: H04N19/00 ,  H04N19/51 ,  H04N19/597 ,  H04N19/52 ,  H04N19/513 ,  H04N19/436

CPC classification number: H04N19/597 ,  H04N19/436 ,  H04N19/513 ,  H04N19/52

Abstract: In one example, a video coder (e.g., a video encoder or a video decoder) is configured to determine that a current block of video data is coded using a disparity motion vector, wherein the current block is within a containing block, based on a determination that a neighboring block to the current block is also within the containing block, substitute a block outside the containing block and that neighbors the containing block for the neighboring block in a candidate list, select a disparity motion vector predictor from one of a plurality of blocks in the candidate list, and code the disparity motion vector based on the disparity motion vector predictor. In this manner, the techniques of this disclosure may allow blocks within the containing block to be coded in parallel.

Abstract translation: 在一个示例中，视频编码器（例如，视频编码器或视频解码器）被配置为使用视差运动矢量来确定视频数据的当前块被编码，其中当前块位于包含块内，基于 确定当前块的相邻块也在所述包含块内，替代所述包含块外的块，并且在候选列表中邻近所述相邻块的所述包含块，从多个子块中的一个中选择视差运动向量预测器 候选列表中的块，并且基于视差运动矢量预测器对视差运动矢量进行编码。 以这种方式，本公开的技术可以允许并行地对包含块内的块进行编码。

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：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。