公开(公告)号：US20150271524A1

公开(公告)日：2015-09-24

申请号：US14662071

申请日：2015-03-18

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen

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

CPC classification number: H04N19/597 ,  H04N19/30 ,  H04N19/51 ,  H04N19/52 ,  H04N19/70

Abstract: A device for encoding video data includes a memory configured to store video data and a video encoder comprising one or more processors configured to, for a current layer being encoded, determine that the current layer has no direct reference layers, based on determining that the current layer has no direct reference layers, set at least one of a first syntax element, a second syntax element, a third syntax element, or a fourth syntax element to a disabling value indicating that a coding tool corresponding to the syntax element is disabled for the current layer.

Abstract translation: 一种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，该视频编码器包括一个或多个处理器，该处理器被配置为：对于当前正被编码的层，基于确定当前层 层没有直接参考层，将至少一个第一语法元素，第二语法元素，第三语法元素或第四语法元素设置为指示与语法元素相对应的编码工具被禁用的禁用值 当前层

公开(公告)号：US20150103906A1

公开(公告)日：2015-04-16

申请号：US14513839

申请日：2014-10-14

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/11 ,  H04N19/46 ,  H04N19/593

CPC classification number: H04N19/11 ,  H04N19/17 ,  H04N19/46 ,  H04N19/593 ,  H04N19/597

Abstract: Techniques are described determining a partition pattern for intra-prediction encoding or decoding a depth block from a partition pattern of one or more partition patterns associated with smaller sized blocks. A video encoder may intra-prediction encode the depth block based on the determined partition pattern, and a video decoder may intra-prediction decode the depth block based on the determine partition pattern.

Abstract translation: 描述了技术，从与较小尺寸块相关联的一个或多个分区模式的分区模式确定用于帧内预测编码或解码深度块的分区模式。 视频编码器可以基于确定的分区模式对深度块进行帧内预测编码，并且视频解码器可以基于确定分区模式对深度块进行帧内预测解码。

公开(公告)号：US20150085930A1

公开(公告)日：2015-03-26

申请号：US14489679

申请日：2014-09-18

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen

IPC: H04N19/52

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：US20150085929A1

公开(公告)日：2015-03-26

申请号：US14497128

申请日：2014-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang

IPC: H04N19/513

CPC classification number: H04N19/53 ,  H04N19/197 ,  H04N19/52 ,  H04N19/56 ,  H04N19/597 ,  H04N19/96

Abstract: Techniques are described for sub-prediction unit (PU) based motion prediction for video coding in HEVC and 3D-HEVC. In one example, the techniques include an advanced temporal motion vector prediction (TMVP) mode to predict sub-PUs of a PU in single layer coding for which motion vector refinement may be allowed. The advanced TMVP mode includes determining motion vectors for the PU in at least two stages to derive motion information for the PU that includes different motion vectors and reference indices for each of the sub-PUs of the PU. In another example, the techniques include storing separate motion information derived for each sub-PU of a current PU predicted using a sub-PU backward view synthesis prediction (BVSP) mode even after motion compensation is performed. The additional motion information stored for the current PU may be used to predict subsequent PUs for which the current PU is a neighboring block.

Abstract translation: 描述了用于在HEVC和3D-HEVC中的视频编码的基于子预测单元（PU）的运动预测的技术。 在一个示例中，这些技术包括高级时间运动矢量预测（TMVP）模式，用于预测可以允许运动矢量细化的单层编码中的PU的子PU。 高级TMVP模式包括至少在两个阶段中确定PU的运动矢量，以导出PU的运动信息，其包括PU的每个子PU的不同的运动矢量和参考索引。 在另一示例中，这些技术包括存储针对使用次PU后视合成预测（BVSP）模式预测的当前PU预测的每个子PU导出的分离运动信息，即使在执行运动补偿之后。 为当前PU存储的附加运动信息可以用于预测当前PU是相邻块的后续PU。

公开(公告)号：US20150078450A1

公开(公告)日：2015-03-19

申请号：US14483983

申请日：2014-09-11

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang

IPC: H04N19/597 ,  H04N19/70 ,  H04N19/51

CPC classification number: H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/577 ,  H04N19/597 ,  H04N19/70

Abstract: Techniques for decoding video data include receiving residual data corresponding to a block of video data, wherein the block of video data is encoded using asymmetric motion partitioning, is uni-directionally predicted using backward view synthesis prediction (BVSP), and has a size of 16×12, 12×16, 16×4 or 4×16, partitioning the block of video data into sub-blocks, each sub-block having a size of 8×4 or 4×8, deriving a disparity motion vector for each of the sub-blocks from a corresponding depth block in a depth picture corresponding to a reference picture, synthesizing a respective reference block for each of the sub-blocks using the respective derived disparity motion vector, and decoding the block of video data by performing motion compensation on each of the sub-blocks using the residual data and the synthesized respective reference blocks.

Abstract translation: 用于对视频数据进行解码的技术包括：接收与视频数据块相对应的残差数据，其中使用非对称运动划分对视频数据块进行编码，使用后视合成预测（BVSP）进行单向预测，并且具有16的大小 ×12,12×16,16×4或4×16，将视频数据块划分为子块，每个子块的大小为8×4或4×8，导出每个子块的视差运动矢量 来自与参考图像相对应的深度图像中的对应深度块的子块，使用各个导出的视差运动矢量合成每个子块的相应参考块，并通过执行运动补偿来解码视频数据块 在使用残差数据和合成的各个参考块的每个子块上。

公开(公告)号：US20150049821A1

公开(公告)日：2015-02-19

申请号：US14458938

申请日：2014-08-13

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang

IPC: H04N19/80 ,  H04N13/00 ,  H04N19/176

CPC classification number: H04N19/176 ,  H04N13/122 ,  H04N19/597 ,  H04N19/80 ,  H04N19/82

Abstract: This disclosure describes techniques for in-loop depth map filtering for 3D video coding processes. In one example, a method of decoding video data comprises decoding a depth block corresponding to a texture block, receiving a respective indication of one or more offset values for the decoded depth block, and performing a filtering process on edge pixels of the depth block using at least one of the one or more offset values to create a filtered depth block.

Abstract translation: 本公开描述了用于3D视频编码处理的循环深度图过滤的技术。 在一个示例中，解码视频数据的方法包括对与纹理块对应的深度块进行解码，接收解码深度块的一个或多个偏移值的相应指示，以及使用 所述一个或多个偏移值中的至少一个以产生经滤波的深度块。

公开(公告)号：US20150023423A1

公开(公告)日：2015-01-22

申请号：US14333084

申请日：2014-07-16

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/583 ,  H04N19/176

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597

Abstract: Techniques are described for determining a block in a reference picture in a reference view based on a disparity vector for a current block. The techniques start the disparity vector from a bottom-right pixel in a center 2×2 sub-block within the current block, and determine a location within the reference picture to which the disparity vector refers. The determined block covers the location referred to by the disparity vector based on the disparity vector starting from the bottom-right pixel in the center 2×2 sub-block within the current block.

Abstract translation: 描述用于基于当前块的视差矢量在参考视图中确定参考图片中的块的技术。 该技术从当前块中的中心2×2子块的右下角像素开始视差矢量，并确定视差矢量所参考的参考图像内的位置。 所确定的块基于从当前块内的中心2×2子块中的右下像素开始的视差矢量来覆盖由视差矢量引用的位置。

公开(公告)号：US20140301454A1

公开(公告)日：2014-10-09

申请号：US14226012

申请日：2014-03-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Xin Zhao

IPC: H04N19/593 ,  H04N13/00

CPC classification number: H04N19/593 ,  H04N13/161 ,  H04N19/11 ,  H04N19/463 ,  H04N19/597 ,  H04N19/70 ,  H04N19/91 ,  H04N2213/005

Abstract: Techniques are described for encoding and decoding depth data for three-dimensional (3D) video data represented in a multiview plus depth format using depth coding modes that are different than high-efficiency video coding (HEVC) coding modes. Examples of additional depth intra coding modes available in a 3D-HEVC process include at least two of a Depth Modeling Mode (DMM), a Simplified Depth Coding (SDC) mode, and a Chain Coding Mode (CCM). In addition, an example of an additional depth inter coding mode includes an Inter SDC mode. In one example, the techniques include signaling depth intra coding modes used to code depth data for 3D video data in a depth modeling table that is separate from the HEVC syntax. In another example, the techniques of this disclosure include unifying signaling of residual information of depth data for 3D video data across two or more of the depth coding modes.

公开(公告)号：US20140254682A1

公开(公告)日：2014-09-11

申请号：US14198442

申请日：2014-03-05

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang

IPC: H04N13/00 ,  H04N19/583 ,  H04N19/597

CPC classification number: H04N13/106 ,  H04N19/56 ,  H04N19/597

Abstract: A video coder stores only one derived disparity vector (DDV) for a slice of a current picture of the video data. The video coder uses the DDV for the slice in a Neighboring Block Based Disparity Vector (NBDV) derivation process to determine a disparity vector for a particular block. Furthermore, the video coder stores, as the DDV for the slice, the disparity vector for the particular block.

Abstract translation: 视频编码器仅存储视频数据的当前图像的切片的一个派生视差矢量（DDV）。 视频编码器在基于相邻块的视差向量（NBDV）导出过程中使用DDV作为切片，以确定特定块的视差向量。 此外，视频编码器存储特定块的视差向量作为切片的DDV。

公开(公告)号：US20140184740A1

公开(公告)日：2014-07-03

申请号：US14140961

申请日：2013-12-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen

IPC: H04N19/597 ,  H04N19/593 ,  H04N19/51 ,  H04N19/44 ,  H04N19/503

CPC classification number: H04N19/597 ,  H04N19/139 ,  H04N19/159 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/593 ,  H04N19/70

Abstract: When a current view is a dependent texture view, a current coding unit (CU) is not intra coded, and a partitioning mode of the current CU is equal to PART_2N×2N, a video coder obtains, from a bitstream that comprises an encoded representation of the video data, a weighting factor index for the current CU, wherein the current CU is in a picture belonging to a current view. When the current view is not a dependent texture view, or the current CU is intra coded, or the partitioning mode of the current CU is not equal to PART_2N×2N, the video decoder assumes that the weighting factor index is equal to a particular value that indicates that residual prediction is not applied with regard to the current CU.

Abstract translation: 当当前视图是从属纹理视图时，当前编码单元（CU）不被帧内编码，并且当前CU的分割模式等于PART_2N×2N，视频编码器从包含编码表示的比特流 的当前CU的加权因子索引，其中当前CU在属于当前视图的图像中。 当当前视图不是依赖纹理视图，或当前CU被帧内编码，或当前CU的分割模式不等于PART_2N×2N时，视频解码器假定加权因子指数等于特定值 这表示对于当前CU不表示残差预测。