公开(公告)号：US09516332B2

公开(公告)日：2016-12-06

申请号：US14133994

申请日：2013-12-19

Applicant: QUALCOMM Incorporated

Inventor： Jewon Kang ,  Ying Chen ,  Li Zhang ,  Marta Karczewicz

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

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

Abstract: A video coder searches a set of neighbor blocks to generate a plurality of disparity vector candidates. Each of the neighbor blocks is a spatial or temporal neighbor of a current block. The video coder determines, based at least in part on the plurality of disparity vector candidates, a final disparity vector for the current block.

Abstract translation: 视频编码器搜索一组相邻块以产生多个视差向量候选。 每个相邻块是当前块的空间或时间邻居。 视频编码器至少部分地基于多个视差向量候选来确定当前块的最终视差向量。

公开(公告)号：US09516306B2

公开(公告)日：2016-12-06

申请号：US14225985

申请日：2014-03-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Xin Zhao

IPC: H04N19/11 ,  H04N19/597 ,  H04N19/196 ,  H04N19/70 ,  H04N19/593 ,  H04N19/14 ,  H04N19/187 ,  H04N19/463 ,  H04N19/91

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：US09491461B2

公开(公告)日：2016-11-08

申请号：US14037738

申请日：2013-09-26

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Vadim Seregin ,  Li Zhang ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N19/51 ,  H04N19/52 ,  H04N19/30 ,  H04N19/61 ,  H04N19/31 ,  H04N19/58 ,  H04N19/513

CPC classification number: H04N19/521 ,  H04N19/30 ,  H04N19/31 ,  H04N19/52 ,  H04N19/58 ,  H04N19/61

Abstract: In one example, a device includes a video coder configured to determine a first co-located reference picture for generating a first temporal motion vector predictor candidate for predicting a motion vector of a current block, determine a second co-located reference picture for generating a second temporal motion vector predictor candidate for predicting the motion vector of the current block, determine a motion vector predictor candidate list that includes at least one of the first temporal motion vector predictor candidate and the second temporal motion vector predictor candidate, select a motion vector predictor from the motion vector predictor candidate list, and code the motion vector of the current block relative to the selected motion vector predictor.

Abstract translation: 在一个示例中，设备包括视频编码器，该视频编码器被配置为确定用于生成用于预测当前块的运动矢量的第一时间运动矢量预测器候选的第一同位置参考图像，确定第二同位置参考图像以产生 用于预测当前块的运动矢量的第二时间运动矢量预测器候选，确定包括第一时间运动矢量预测器候选和第二时间运动矢量预测器候选中的至少一个的运动矢量预测器候选列表，选择运动矢量预测器 并且对当前块相对于所选择的运动矢量预测器的运动矢量进行编码。

公开(公告)号：US09445076B2

公开(公告)日：2016-09-13

申请号：US13802344

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/00 ,  H04N13/00 ,  H04N19/597 ,  H04N19/52 ,  H04N19/139 ,  H04N19/513

CPC classification number: H04N13/161 ,  H04N19/139 ,  H04N19/513 ,  H04N19/52 ,  H04N19/597

Abstract: When coding multiview video data, a video coder can code one or more pictures in one or more reference views, including a first reference view and determine a disparity vector for a current block based on motion information of one or more neighboring blocks of the current block, wherein the current block is in a second view, wherein the disparity vector points from the current block to a corresponding block in a picture of the same time instance in one of the one or more reference views.

Abstract translation: 当编码多视点视频数据时，视频编码器可以在包括第一参考视图的一个或多个参考视图中编码一个或多个图像，并且基于当前块的一个或多个相邻块的运动信息确定当前块的视差向量 其中当前块在第二视图中，其中视差矢量从当前块指向在一个或多个参考视图之一中的相同时间实例的图片中的对应块。

公开(公告)号：US09344737B2

公开(公告)日：2016-05-17

申请号：US14839326

申请日：2015-08-28

Applicant: QUALCOMM Incorporated

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

IPC: H04N7/26 ,  H04N7/12 ,  H04N5/225 ,  H04N13/00 ,  H04N19/50 ,  H04N19/597 ,  H04N19/124 ,  H04N19/44 ,  H04N19/91 ,  H04N13/04

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.

Abstract translation: 视频编码器基于当前视图组件的参考画面集合生成当前视图组件的参考画面列表。 参考图像集包括视频间参考图像集合。 视频编码器至少部分地基于参考图片列表中的一个或多个参考图片对当前视图分量进行编码。 此外，视频编码器生成包括指示当前视图组件的参考画面组的语法元素的比特流。 视频解码器从比特流解析指示当前视图分量的参考图像组的语法元素。 视频解码器基于参考图像集合生成当前视图分量的参考图片列表。 此外，视频解码器基于参考图片列表中的一个或多个参考图片解码当前视图组件的至少一部分。

公开(公告)号：US09325990B2

公开(公告)日：2016-04-26

申请号：US13937130

申请日：2013-07-08

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Vadim Seregin ,  Marta Karczewicz ,  Li Zhang

IPC: H04N11/02 ,  H04N19/503 ,  H04N19/105 ,  H04N19/147 ,  H04N19/172

CPC classification number: H04N19/503 ,  H04N19/105 ,  H04N19/147 ,  H04N19/172

Abstract: A first reference index value indicates a position, within a reference picture list associated with a current prediction unit (PU) of a current picture, of a first reference picture. A reference index of a co-located PU of a co-located picture indicates a position, within a reference picture list associated with the co-located PU of the co-located picture, of a second reference picture. When the first reference picture and the second reference picture belong to different reference picture types, a video coder sets a reference index of a temporal merging candidate to a second reference index value. The second reference index value is different than the first reference index value.

Abstract translation: 第一参考索引值指示与第一参考图片的当前图片的当前预测单元（PU）相关联的参考图片列表内的位置。 同位置图片的同位置PU的参考索引指示与第二参考图片的同位置图片的同位置PU相关联的参考图片列表内的位置。 当第一参考图像和第二参考图像属于不同的参考图像类型时，视频编码器将时间合并候选的参考索引设置为第二参考索引值。 第二参考索引值不同于第一参考索引值。

公开(公告)号：US20150373325A1

公开(公告)日：2015-12-24

申请号：US14743829

申请日：2015-06-18

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Wei Pu ,  Vadim Seregin ,  Li Zhang ,  Joel Sole Rojals ,  Feng Zou ,  Rajan Laxman Joshi

IPC: H04N19/119 ,  H04N19/159 ,  H04N19/587 ,  H04N19/107

CPC classification number: H04N19/593 ,  H04N19/503

Abstract: Techniques are described for palette-based video coding. In palette-based coding, a video coder may form a “palette” as a table of colors for representing video data of a particular area (e.g., a given block). Rather than coding actual pixel values (or their residuals), the video coder may code palette index values for one or more of the pixels that correspond to entries in the palette representing the colors of the pixels. A palette may be explicitly encoded, predicted from previous palette entries, or a combination thereof. In this disclosure, techniques are described for coding a block of video data that has a single color value using a single color mode as a sub-mode of a palette coding mode. The disclosed techniques enable a block having a single color value to be coded with a reduced number of bits compared to a normal mode of the palette coding mode.

Abstract translation: 描述了基于调色板的视频编码技术。 在基于调色板的编码中，视频编码器可以形成“调色板”作为用于表示特定区域（例如给定块）的视频数据的颜色表。 视频编码器不必对实际像素值（或其残差）进行编码，而是可以对与表示像素的颜色的调色板中的条目相对应的一个或多个像素编码调色板索引值。 调色板可以被显式编码，从先前调色板条目预测或其组合。 在本公开中，描述了用于使用单色模式将具有单一颜色值的​​视频数据块编码为调色板编码模式的子模式的技术。 与调色板编码模式的正常模式相比，所公开的技术使具有单个颜色值的块以减少的位数被编码。

公开(公告)号：US20150264364A1

公开(公告)日：2015-09-17

申请号：US14656532

申请日：2015-03-12

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/186 ,  H04N19/176 ,  H04N19/103 ,  H04N19/44 ,  H04N19/33 ,  H04N19/61

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 a coding mode used to encode the video data. The coding mode may be one of a lossy coding mode or a lossless coding mode. The video coder may determine a color-space transform process dependent on the coding mode used to encode the video data. The video coder may apply the color-space transform process in encoding the video data. In decoding the video data, independent of whether the coding mode is the lossy coding mode or the lossless coding mode, the video coder may apply the same color-space inverse transform process in a decoding loop of the encoding process.

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用于编码视频数据的编码模式。 编码模式可以是有损编码模式或无损编码模式之一。 视频编码器可以根据用于编码视频数据的编码模式来确定色空间变换处理。 视频编码器可以在编码视频数据时应用颜色空间变换处理。 在解码视频数据时，与编码模式是有损编码模式还是无损编码模式无关，视频编码器可以在编码处理的解码循环中应用相同的颜色空间逆变换处理。

公开(公告)号：US20150195559A1

公开(公告)日：2015-07-09

申请号：US14592819

申请日：2015-01-08

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Chao Pang ,  Li Zhang ,  Joel Sole Rojals ,  Marta Karczewicz

IPC: H04N19/513 ,  H04N19/52

CPC classification number: H04N19/513 ,  H04N19/11 ,  H04N19/154 ,  H04N19/186 ,  H04N19/52 ,  H04N19/593

Abstract: A device for coding video data, the device comprising a memory configured to store video data and a video coder comprising one or more processors configured to: determine a coding unit of a picture of the video data is coded using an intra block copy mode; determine a vector for a first chroma block of the coding unit; locate a first chroma reference block using the vector, wherein the first chroma reference block is in the picture; predict the first chroma block based on the first chroma reference block; locate a second chroma reference block using the vector, wherein the second chroma reference block is in the picture; and predict a second chroma block of the coding unit based on the second chroma reference block.

Abstract translation: 一种用于对视频数据进行编码的装置，所述装置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编码器，该处理器被配置为：使用帧内块复制模式来确定视频数据的图像的编码单元; 确定编码单元的第一色度块的向量; 使用向量来定位第一色度参考块，其中第一色度参考块在图像中; 基于第一色度参考块预测第一色度块; 使用向量来定位第二色度参考块，其中第二色度参考块在图像中; 并且基于第二色度参考块预测编码单元的第二色度块。

公开(公告)号：US20150085935A1

公开(公告)日：2015-03-26

申请号：US14496991

申请日：2014-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Geert Van der Auwera ,  Li Zhang ,  Hongbin Liu

IPC: H04N19/597 ,  H04N19/583 ,  H04N19/51

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

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.