公开(公告)号：US20160105657A1

公开(公告)日：2016-04-14

申请号：US14871235

申请日：2015-09-30

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Rajan Laxman Joshi ,  Marta Karczewicz

IPC: H04N9/75 ,  H04N9/64 ,  H04N19/136 ,  H04N19/50 ,  H04N19/176 ,  G06T9/20 ,  H04N5/232

CPC classification number: H04N9/75 ,  G06T9/20 ,  H04N5/23206 ,  H04N9/642 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/50 ,  H04N19/60 ,  H04N19/61 ,  H04N19/85

Abstract: A video coder transforms, based on a difference between a bit depth of an initial luma sample and a bit depth of initial chroma samples, a set of initial samples to a set of modified samples. The set of initial samples may include the initial luma sample and the initial chroma samples. The initial chroma samples may include an initial Cb sample and an initial Cr sample. The set of modified samples may include a modified luma sample and modified chroma samples. The modified chroma samples may include a modified Cb sample and a modified Cr sample. Additionally, the video coder adds the modified samples to corresponding samples of a predictive block to produce reconstructed samples.

Abstract translation: 视频编码器基于初始亮度样本的位深度和初始色度样本的位深度之间的差异将一组初始样本转换为一组修改的样本。 初始样本集可以包括初始亮度样本和初始色度样本。 初始色度样品可以包括初始Cb样品和初始Cr样品。 经修改的样品组可包括经修改的亮度样本和经修改的色度样本。 修饰的色度样品可以包括修饰的Cb样品和修饰的Cr样品。 另外，视频编码器将修改的样本添加到预测块的相应样本以产生重建的样本。

公开(公告)号：US09258562B2

公开(公告)日：2016-02-09

申请号：US13772917

申请日：2013-02-21

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N13/00 ,  H04N19/51 ,  H04N19/597 ,  H04N19/52 ,  H04N19/46

CPC classification number: H04N19/52 ,  H04N19/46 ,  H04N19/597

Abstract: In some example techniques for generating and updating depth map estimates used for inter-view motion prediction and/or inter-view residual prediction for coding multiview video data, each of a plurality of dependent views is associated with a dependent depth view estimate, which may be generated or updated based on coding of the texture data of the dependent view relative to a base view. In such examples, each of the dependent depth map estimates may be warped to the base view to produce a respective one of a plurality of base depth map estimates. Each dependent depth map estimate and the respective base depth map estimate for a depth map estimate pair associated with the respective one of the plurality of dependent views.

Abstract translation: 在用于生成和更新用于视频间运动预测和/或用于编码多视点视频数据的视频间残差预测的深度图估计的一些示例性技术中，多个从属视图中的每一个与从属深度视图估计相关联， 基于相对于基本视图的从属视图的纹理数据的编码来生成或更新。 在这样的示例中，依赖深度图估计中的每一个可以被扭曲到基本视图以产生多个基本深度图估计中的相应的一个。 每个相关深度图估计和与多个从属视图中的相应一个相关联的深度图估计对的相应基准深度图估计。

公开(公告)号：US20150326880A1

公开(公告)日：2015-11-12

申请号：US14651886

申请日：2012-12-14

Applicant: Liu HE ,  Li ZHANG ,  Ying CHEN ,  QUALCOMM INCORPORATED

Inventor： Liu He ,  Li Zhang ,  Ying Chen

IPC: H04N19/597 ,  H04N19/52

CPC classification number: H04N19/597 ,  H04N19/196 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/59

Abstract: The techniques of this disclosure generally relate to using motion information for a corresponding block from a texture view component that corresponds with a block in a depth view component in coding the block in the depth view component. In some examples, for coding purposes, the techniques may use motion information when the spatial resolution of the texture view component is different than the spatial resolution of the depth view component. Among the various IMVP techniques described in this disclosure, this disclosure describes IVMP techniques for use in coding scenarios where a partition of a depth view macroblock (MB) corresponds to a texture view MB that is either intra coded or partitioned into four partitions.

Abstract translation: 本公开的技术通常涉及对于在深度视图组件中编码块中的与深度视图组件中的块相对应的纹理视图组件，使用用于相应块的运动信息。 在一些示例中，为了编码的目的，当纹理视图组件的空间分辨率不同于深度视图组件的空间分辨率时，技术可以使用运动信息。 在本公开中描述的各种IMVP技术中，本公开描述了在编码场景中使用的IVMP技术，其中深度视图宏块（MB）的分区对应于被帧内编码或分割成四个分区的纹理视图MB。

公开(公告)号：US20150264405A1

公开(公告)日：2015-09-17

申请号：US14656516

申请日：2015-03-12

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Marta Karczewicz ,  Joel Sole Rojals ,  Woo-Shik Kim

IPC: H04N19/70 ,  H04N19/186 ,  H04N19/176 ,  H04N19/60

CPC classification number: H04N19/126 ,  H04N19/102 ,  H04N19/103 ,  H04N19/11 ,  H04N19/12 ,  H04N19/134 ,  H04N19/136 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/186 ,  H04N19/196 ,  H04N19/33 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70

Abstract: In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine whether to use color-space conversion for a coding unit and set a value of a syntax element of the coding unit to indicate the use of color-space conversion. The video coder may apply a color-space transform process in encoding the coding unit. The video coder may decode the syntax element of the coding unit. The video coder may determine whether a value of the syntax element indicates that the coding unit was encoded using color-space conversion. The video coder may apply a color-space inverse transform process in decoding the coding unit in response to determining that the syntax element indicates that the coding unit was coded using color-space conversion.

Abstract translation: 通常，本公开描述了使用颜色空间转换处理对视频块进行编码的技术。 诸如视频编码器或视频解码器的视频编码器可以确定是否对编码单元使用色彩空间转换，并且设置编码单元的语法元素的值来指示使用色彩空间转换。 视频编码器可以在对编码单元进行编码时应用颜色空间变换处理。 视频编码器可以解码编码单元的语法元素。 视频编码器可以确定语法元素的值是否指示使用颜色空间转换编码单元。 视频编码器可以响应于确定语法元素指示使用颜色空间转换对编码单元进行编码，可以对解码编码单元中的颜色空间逆变换处理进行应用。

公开(公告)号：US20150195562A1

公开(公告)日：2015-07-09

申请号：US14592767

申请日：2015-01-08

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Joel Sole Rojals ,  Marta Karczewicz ,  Hongbin Liu ,  Li Zhang ,  Jianle Chen

IPC: H04N19/523 ,  H04N19/176 ,  H04N19/139 ,  H04N19/513 ,  H04N19/105

CPC classification number: H04N19/523 ,  H04N19/105 ,  H04N19/109 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/53 ,  H04N19/533 ,  H04N19/56

Abstract: A device for decoding video data includes a memory configured to store video data and a video decoder comprising one or more processors configured to adaptively select motion vector precision for motion vectors used to encode blocks of video data.

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和包括一个或多个处理器的视频解码器，该处理器被配置为自适应地选择用于编码视频数据块的运动矢量的运动矢量精度。

公开(公告)号：US20150030073A1

公开(公告)日：2015-01-29

申请号：US14339256

申请日：2014-07-23

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang

IPC: H04N19/51 ,  H04N13/00 ,  H04N19/176 ,  H04N19/597 ,  H04N19/583

CPC classification number: H04N13/161 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/597

Abstract: In accordance with one or more techniques of this disclosure, a video coder may divide a current prediction unit (PU) into a plurality of sub-PUs. Each of the sub-PUs may have a size smaller than a size of the PU. Furthermore, the current PU may be in a depth view of the multi-view video data. For each respective sub-PU from the plurality of sub-PUs, the video coder may identify a reference block for the respective sub-PU. The reference block may be co-located with the respective sub-PU in a texture view corresponding to the depth view. The video coder may use motion parameters of the identified reference block for the respective sub-PU to determine motion parameters for the respective sub-PU.

Abstract translation: 根据本公开的一种或多种技术，视频编码器可以将当前预测单元（PU）划分为多个子PU。 每个子PU可以具有小于PU的尺寸的尺寸。 此外，当前PU可以是多视图视频数据的深度视图。 对于来自多个子PU的每个各个子PU，视频编码器可以识别相应的子PU的参考块。 参考块可以与对应于深度视图的纹理视图中的相应子PU共定位。 视频编码器可以使用所识别的参考块的相应子PU的运动参数来确定各个子PU的运动参数。

公开(公告)号：US20140307795A1

公开(公告)日：2014-10-16

申请号：US14247928

申请日：2014-04-08

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Li Zhang

IPC: H04N19/583

CPC classification number: H04N19/52 ,  H04N19/597

Abstract: In one example, a device for coding video data includes a video coder configured to code motion information for a block of multiview video data, wherein the motion information includes a reference index that identifies a reference picture comprising a source for backward-warping view synthesis prediction (BVSP), perform BVSP on a portion of the reference picture to produce a BVSP reference block, and predict the block using the BVSP reference block.

Abstract translation: 在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为对多视点视频数据块编码运动信息，其中所述运动信息包括标识包括用于后向翘曲视图合成预测的源的参考图像的参考索引 （BVSP），在参考图像的一部分上执行BVSP以产生BVSP参考块，并使用BVSP参考块预测块。

公开(公告)号：US20140294061A1

公开(公告)日：2014-10-02

申请号：US14225985

申请日：2014-03-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Xin Zhao

IPC: H04N19/11 ,  H04N19/187 ,  H04N19/196 ,  H04N19/14

CPC classification number: H04N19/11 ,  H04N19/14 ,  H04N19/187 ,  H04N19/197 ,  H04N19/463 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70 ,  H04N19/91

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.

Abstract translation: 描述了使用与高效率视频编码（HEVC）编码模式不同的深度编码模式来编码和解码以多视图加深度格式表示的三维（3D）视频数据的深度数据的编码和解码技术。 在3D-HEVC过程中可用的附加深度帧内编码模式的示例包括深度建模模式（DMM），简化深度编码（SDC）模式和链式编码模式（CCM）中的至少两个。 此外，附加深度编码模式的示例包括Inter SDC模式。 在一个示例中，这些技术包括用于在与HEVC语法分离的深度建模表中用于对3D视频数据的深度数据进行编码的信令深度帧内编码模式。 在另一示例中，本公开的技术包括跨越两个或更多个深度编码模式统一用于3D视频数据的深度数据的残留信息的信令。

公开(公告)号：US20140253681A1

公开(公告)日：2014-09-11

申请号：US14149260

申请日：2014-01-07

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N13/00

CPC classification number: H04N13/161 ,  H04N19/105 ,  H04N19/172 ,  H04N19/513 ,  H04N19/573 ,  H04N19/577 ,  H04N19/597 ,  H04N19/80

Abstract: A video coder scales a motion vector of a current prediction unit (PU) of a current picture in order to compensate for a difference in temporal distance. In addition, the video coder determines a predictive block for the current PU, determines a disparity reference block based on samples of the disparity reference picture at a location indicated by a disparity vector of the current PU, and determines, based on samples of the fixed reference picture at a location indicated by the scaled motion vector, a temporal-disparity reference block for the current PU. The video coder then determines a residual predictor for the current PU. Each sample of the residual predictor for the current PU indicates a difference between a sample of the temporal-disparity reference block for the current PU and a corresponding sample of the disparity reference block.

Abstract translation: 视频编码器缩放当前图像的当前预测单元（PU）的运动矢量，以补偿时间距离的差异。 此外，视频编码器确定当前PU的预测块，基于当前PU的视差向量指示的位置处的视差参考图像的样本来确定视差参考块，并且基于固定 在由缩放的运动矢量指示的位置处的参考图像，用于当前PU的时间 - 视差参考块。 视频编码器然后确定当前PU的剩余预测器。 当前PU的剩余预测器的每个样本表示当前PU的时间 - 视差参考块的样本与视差参考块的相应样本之间的差。

公开(公告)号：US20140241430A1

公开(公告)日：2014-08-28

申请号：US14189648

申请日：2014-02-25

Applicant: Qualcomm Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Jewon Kang

IPC: H04N19/51 ,  H04N19/597

CPC classification number: H04N19/51 ,  H04N19/44 ,  H04N19/52 ,  H04N19/53 ,  H04N19/56

Abstract: In one example of the disclosure, a method of coding video data comprises coding video data using texture-first coding, and performing an NBDV derivation process for a block of the video data using a plurality of neighboring blocks. The NBDV derivation process comprises designating a motion vector associated with a neighboring block of the plurality of neighboring blocks coded with a block-based view synthesis prediction (BVSP) mode as an available disparity motion.

Abstract translation: 在本公开的一个示例中，视频数据编码的方法包括使用纹理优先编码对视频数据进行编码，以及使用多个相邻块对视频数据的块执行NBDV导出处理。 NBDV导出处理包括指定与基于块视图合成预测（BVSP）模式编码的多个相邻块的相邻块相关联的运动矢量作为可用视差运动。