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：US20140254679A1

公开(公告)日：2014-09-11

申请号：US14194159

申请日：2014-02-28

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Ying Chen ,  Xiang Li ,  Ye-Kui Wang

IPC: H04N19/39 ,  H04N19/51 ,  H04N19/577

CPC classification number: H04N19/105 ,  H04N19/167 ,  H04N19/187 ,  H04N19/30 ,  H04N19/39 ,  H04N19/513 ,  H04N19/577 ,  H04N19/597

Abstract: A method of coding video data includes upsampling at least a portion of a reference layer picture to an upsampled picture having an upsampled picture size. The upsampled picture size has a horizontal upsampled picture size and a vertical upsampled picture size. At least one of the horizontal or vertical upsampled picture sizes may be different than a horizontal picture size or vertical picture size, respectively, of an enhancement layer picture. In addition, position information associated with the upsampled picture may be signaled. An inter-layer reference picture may be generated based on the upsampled picture and the position information.

Abstract translation: 编码视频数据的方法包括将参考层图像的至少一部分上采样为具有上采样图像大小的上采样图像。 上采样图像尺寸具有水平上采样图像尺寸和垂直上采样图像尺寸。 水平或垂直上采样图像尺寸中的至少一个可以分别与增强层图像的水平图像尺寸或垂直图像尺寸不同。 此外，可以发出与上采样图像相关联的位置信息。 可以基于上采样图像和位置信息来生成层间参考图像。

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。

公开(公告)号：US20140192153A1

公开(公告)日：2014-07-10

申请号：US14137358

申请日：2013-12-20

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen

IPC: H04N19/597 ,  H04N19/44 ,  H04N19/33 ,  H04N19/593

Abstract: Techniques for encapsulating video streams containing multiple coded views in a media file are described herein. In one example, a method includes parsing a track of multiview video data, wherein the track includes at least one depth view. The method further includes parsing information to determine a spatial resolution associated with the depth view, wherein decoding the spatial resolution does not require parsing of a sequence parameter set of the depth view. Another example method includes composing a track of multiview video data, wherein the track includes the one or more views. The example method further includes composing information to indicate a spatial resolution associated with the depth view, wherein decoding the spatial resolution does not require parsing of a sequence parameter set of the depth view.

Abstract translation: 这里描述了用于将包含多个编码视图的视频流封装在媒体文件中的技术。 在一个示例中，一种方法包括解析多视角视频数据的轨道，其中轨道包括至少一个深度视图。 该方法还包括解析信息以确定与深度视图相关联的空间分辨率，其中解码空间分辨率不需要解析深度视图的序列参数集。 另一示例性方法包括组成多视点视频数据的轨道，其中轨道包括一个或多个视图。 示例性方法还包括组合信息以指示与深度视图相关联的空间分辨率，其中解码空间分辨率不需要解析深度视图的序列参数集。

公开(公告)号：US20140161189A1

公开(公告)日：2014-06-12

申请号：US14098369

申请日：2013-12-05

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/51

CPC classification number: H04N19/31 ,  H04N19/103 ,  H04N19/105 ,  H04N19/107 ,  H04N19/136 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/577 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

Abstract: In an example, a method of coding video data includes determining, for a first block of video data in a first layer of video data, a temporal motion vector and associated temporal reference picture for predicting the first block, where the temporal reference picture has a picture order count value. The method also includes determining a disparity reference block in a disparity reference picture indicated by a disparity vector associated with the first block, and determining whether a decoded picture buffer contains a temporal-disparity reference picture in the second view and having the picture order count value of the temporal reference picture. When the decoded picture buffer does not contain a temporal-disparity reference picture in the second view and having the picture order count value of the temporal reference picture, the method includes modifying an inter-view residual prediction process for predicting residual data of the first block.

Abstract translation: 在一个示例中，视频数据的编码方法包括：对第一视频数据层中的视频数据的第一块确定用于预测第一块的时间运动矢量和相关联的时间参考图像，其中时间参考图片具有 图片顺序计数值。 该方法还包括确定由与第一块相关联的视差矢量指示的视差参考画面中的视差参考块，以及确定解码图像缓冲器是否包含第二视图中的时间 - 视差参考图像，并具有图像顺序计数值 的时间参考图片。 当解码图像缓冲器在第二视图中不包含时间 - 视差参考图像并且具有时间参考图像的图像顺序计数值时，该方法包括修改用于预测第一块的残差数据的视图间残差预测处理 。

公开(公告)号：US20130195171A1

公开(公告)日：2013-08-01

申请号：US13753250

申请日：2013-01-29

Applicant: Qualcomm Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen

IPC: H04N7/26

CPC classification number: H04N19/174 ,  H04N19/46 ,  H04N19/70

Abstract: A device comprising a video file creation module is configured to obtain a plurality of slices of coded video content. Parameter sets are associated with the coded video content. The video creation module encapsulates the plurality of slices of coded video content within one or more access units of a video stream. A first type of parameter set may be encapsulated within one or more access units of the video stream. A second type of parameter set may be encapsulated within a sample description. The sample description may include a dedicated array for parameter sets.

Abstract translation: 包括视频文件创建模块的装置被配置为获得多个编码视频内容片段。 参数集与编码的视频内容相关联。 视频创建模块将多个编码视频内容片段封装在视频流的一个或多个访问单元内。 第一类型的参数集可以被封装在视频流的一个或多个访问单元内。 第二种类型的参数集可以封装在样本描述中。 示例描述可以包括用于参数集的专用阵列。

公开(公告)号：US20130155184A1

公开(公告)日：2013-06-20

申请号：US13720622

申请日：2012-12-19

Applicant: Qualcomm Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang ,  Li Zhang

IPC: H04N7/26 ,  H04N13/00

CPC classification number: H04N19/50 ,  H04N13/161 ,  H04N13/349 ,  H04N19/124 ,  H04N19/44 ,  H04N19/597 ,  H04N19/91

Abstract: A video encoder generates, based on a reference picture set of a current view component, a reference picture list for the current view component. The reference picture set includes an inter-view reference picture set. The video encoder encodes the current view component based at least in part on one or more reference pictures in the reference picture list. In addition, the video encoder generates a bitstream that includes syntax elements indicating the reference picture set of the current view component. A video decoder parses, from the bitstream, syntax elements indicating the reference picture set of the current view component. The video decoder generates, based on the reference picture set, the reference picture list for the current view component. In addition, the video decoder decodes at least a portion of the current view component based on one or more reference pictures in the reference picture list.

公开(公告)号：US20130128965A1

公开(公告)日：2013-05-23

申请号：US13678374

申请日：2012-11-15

Applicant: Qualcomm Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/50 ,  H04N19/00 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/157 ,  H04N19/167 ,  H04N19/51 ,  H04N19/53 ,  H04N19/597

Abstract: The techniques of this disclosure may be generally related 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.

Abstract translation: 本公开的技术通常可以与在深度视图组件中对块进行编码时使用与深度视图组件中的块相对应的纹理视图组件的相应块的运动信息相关。 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。

公开(公告)号：US11330284B2

公开(公告)日：2022-05-10

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 ,  H04N19/513 ,  H04N19/70 ,  H04N19/56 ,  H04N19/46 ,  H04N19/96 ,  H04N19/109 ,  H04N19/57 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44

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.