公开(公告)号：US09667942B2

公开(公告)日：2017-05-30

申请号：US14084347

申请日：2013-11-19

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Jewon Kang ,  Li Zhang

IPC: H04N13/00 ,  H04N19/105 ,  H04N19/176 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N13/161 ,  H04N19/105 ,  H04N19/176 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

Abstract: A method of coding video data includes deriving prediction weights for illumination compensation of luma samples of a video block partition once for the video block partition such that the video block partition has a common set of prediction weights for performing illumination compensation of the luma samples regardless of a transform size for the video block partition, calculating a predicted block for the video block partition using the prediction weights using illumination compensation, and coding the video block partition using the predicted block.

公开(公告)号：US09615090B2

公开(公告)日：2017-04-04

申请号：US14140961

申请日：2013-12-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen

IPC: H04N19/597 ,  H04N19/503 ,  H04N19/159 ,  H04N19/70 ,  H04N19/51 ,  H04N19/44 ,  H04N19/139 ,  H04N19/46 ,  H04N19/593

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.

公开(公告)号：US20170094274A1

公开(公告)日：2017-03-30

申请号：US15278855

申请日：2016-09-28

Applicant: QUALCOMM Incorporated

Inventor： Wei-Jung Chien ,  Chao Pang ,  Li Zhang ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/124 ,  H04N19/91 ,  H04N19/50 ,  H04N19/44

CPC classification number: H04N19/124 ,  H04N19/11 ,  H04N19/119 ,  H04N19/122 ,  H04N19/126 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176 ,  H04N19/43 ,  H04N19/44 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593 ,  H04N19/91

Abstract: An example device includes a memory device configured to store encoded video data, and processing circuitry coupled to the memory device. The processing circuitry is configured to determine that a rectangular transform unit (TU) of the stored video data includes a number of pixel rows denoted by a first integer value ‘K’ and a number of pixel columns denoted by a second integer value ‘L,’ where K has a value equal to an integer value ‘m’ left shifted by one, and where L has a value equal to an integer value ‘n’ left shifted by one, to determine that a sum of n and m is an odd number, and based on the sum of n and m being the odd number, to add a delta quantization parameter value to a quantization parameter (QP) value for the rectangular TU to obtain a modified QP value for the rectangular TU.

公开(公告)号：US09544601B2

公开(公告)日：2017-01-10

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 ,  H04N19/597 ,  H04N19/17

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：US09538180B2

公开(公告)日：2017-01-03

申请号：US14107144

申请日：2013-12-16

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N7/50 ,  H04N19/51 ,  H04N19/597 ,  H04N19/513 ,  H04N19/573 ,  H04N19/593

CPC classification number: H04N19/513 ,  H04N19/573 ,  H04N19/593 ,  H04N19/597

Abstract: During a process to derive an inter-view predicted motion vector candidate (IPMVC) for an Advanced Motion Vector Prediction (AMVP) candidate list, a video coder determines, based on a disparity vector of a current prediction unit (PU), a reference PU for the current PU. Furthermore, when a first reference picture of the reference PU has the same picture order count (POC) value as a target reference picture of the current PU, the video coder determines an IPMVC based on a first motion vector of the reference PU. Otherwise, when a second reference picture of the reference PU has the same POC value as the target reference picture of the current PU, the video coder determines the IPMVC based on a second motion vector of the reference PU.

Abstract translation: 在导出用于高级运动矢量预测（AMVP）候选列表的视角间预测运动矢量候选（IPMVC）的过程中，视频编码器基于当前预测单元（PU）的视差向量来确定参考PU 用于当前的PU。 此外，当参考PU的第一参考图像具有与当前PU的目标参考图片相同的图像顺序计数（POC）值时，视频编码器基于参考PU的第一运动矢量来确定IPMVC。 否则，当参考PU的第二参考图像具有与当前PU的目标参考图像相同的POC值时，视频编码器基于参考PU的第二运动矢量来确定IPMVC。

公开(公告)号：US20160373782A1

公开(公告)日：2016-12-22

申请号：US15184089

申请日：2016-06-16

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/583 ,  H04N19/124 ,  H04N19/523 ,  H04N19/174 ,  H04N19/513

CPC classification number: H04N19/583 ,  H04N19/11 ,  H04N19/124 ,  H04N19/13 ,  H04N19/136 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463 ,  H04N19/513 ,  H04N19/523 ,  H04N19/593 ,  H04N19/91

Abstract: A device for decoding video data includes one or more processors configured to derive M most probable modes (MPMs) for intra prediction of a block of video data, wherein M is greater than 3. The one or more processors decode 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. The one or more processors decode the indicated one of the MPM index or the non-MPM index. Furthermore, the one or more processors reconstruct the block of video data based on the selected intra prediction mode.

Abstract translation: 用于解码视频数据的设备包括一个或多个处理器，其被配置为导出M个用于视频数据块的帧内预测的最可能模式（MPM），其中M大于3.一个或多个处理器解码语法元素，其指示是否 MPM索引或非MPM索引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选择的帧内预测模式。 一个或多个处理器解码指​​示的一个MPM索引或非MPM索引。 此外，一个或多个处理器基于所选择的帧内预测模式来重构视频数据块。

公开(公告)号：US20160373770A1

公开(公告)日：2016-12-22

申请号：US15184103

申请日：2016-06-16

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/176 ,  H04N19/124 ,  H04N19/182 ,  H04N19/513 ,  H04N19/82 ,  H04N19/174

CPC classification number: H04N19/176 ,  H04N19/11 ,  H04N19/124 ,  H04N19/136 ,  H04N19/174 ,  H04N19/182 ,  H04N19/463 ,  H04N19/513 ,  H04N19/59 ,  H04N19/593 ,  H04N19/80 ,  H04N19/82

Abstract: A device for decoding video data includes one or more processors configured to decode syntax information that indicates a selected intra prediction mode for a block of video data from among a plurality of intra prediction modes. The plurality of intra prediction modes includes greater than 33 angular intra prediction modes. The angular intra prediction modes defined such that interpolation is performed in 1/32 pel accuracy. The one or more processors reconstruct the block of video data based on the selected intra prediction mode.

Abstract translation: 用于解码视频数据的设备包括一个或多个处理器，被配置为对多个帧内预测模式中的视频数据块指示所选择的帧内预测模式的语法信息进行解码。 多个帧内预测模式包括大于33个角度帧内预测模式。 角度帧内预测模式被定义为使得以1/32像素精度执行插值。 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：US20160373769A1

公开(公告)日：2016-12-22

申请号：US15184051

申请日：2016-06-16

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/176 ,  H04N19/124 ,  H04N19/513 ,  H04N19/174 ,  H04N19/182

CPC classification number: H04N19/176 ,  H04N19/11 ,  H04N19/117 ,  H04N19/124 ,  H04N19/136 ,  H04N19/174 ,  H04N19/182 ,  H04N19/463 ,  H04N19/513 ,  H04N19/59 ,  H04N19/593 ,  H04N19/82

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. As part of deriving the M most probable modes, the one or more processors define a representative intra prediction mode for a left neighboring column and use the representative intra prediction mode for the left neighboring column as an MPM for the left neighboring column, and/or define a representative intra prediction mode for an above neighboring row and use the representative intra prediction mode for the above neighboring row as an MPM for the above neighboring row. A syntax element that indicates whether an MPM index or a non-MPM index is used to indicate a selected intra prediction mode for intra prediction of the block is decoded. 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。 作为导出M个最可能模式的一部分，一个或多个处理器为左相邻列定义代表性的帧内预测模式，并将左邻近列的代表性帧内预测模式用作左相邻列的MPM，和/或 定义上述相邻行的代表性帧内预测模式，并将上述相邻行的代表性帧内预测模式用作上述相邻行的MPM。 指示用于指示用于块的帧内预测的所选择的帧内预测模式的MPM索引或非MPM索引的语法元素被解码。 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：US20160353113A1

公开(公告)日：2016-12-01

申请号：US15166153

申请日：2016-05-26

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Marta Karczewicz ,  Jianle Chen ,  Wei-Jung Chien

IPC: H04N19/13 ,  H04N19/122 ,  H04N19/625

CPC classification number: H04N19/13 ,  H04N19/122 ,  H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/577 ,  H04N19/625 ,  H04N19/91

Abstract: A video coding device includes processor(s) configured to determine, for each of a plurality of bins of a value for a syntax element of a current transform coefficient, contexts using respective corresponding bins of values for the syntax element of previously coded transform coefficients. The processor(s) are configured to determine a context for an ith bin of the value for the syntax element of the current transform coefficient using a corresponding ith bin of a value for the syntax element of a previously coded transform coefficient. To use the corresponding ith bin of the value for the syntax element of the previously coded transform coefficient, the processor(s) are configured to use only the ith bin, and no other bins, of the value for the syntax element of the previously coded transform coefficient. ‘i’ represents a non-negative integer.

Abstract translation: 视频编码装置包括处理器，其被配置为使用对于先前编码的变换系数的语法元素的各个对应的值来确定针对当前变换系数的语法元素的值的多个块中的每一个的上下文。 处理器被配置为使用对于先前编码的变换系数的语法元素的值的对应的第i个bin来确定当前变换系数的语法元素的值的第i个bin的上下文。 为了使用对于先前编码的变换系数的语法元素的值的对应的第i个bin，处理器被配置为仅使用先前编码的转换系数的语法元素的值的第i个bin，而不使用其他bin 变换系数。 'i'表示非负整数。

公开(公告)号：US09503720B2

公开(公告)日：2016-11-22

申请号：US13801350

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

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

IPC: H04N7/12 ,  H04N11/02 ,  H04N7/26 ,  H04N19/583 ,  H04N19/597 ,  H04N19/52 ,  H04N19/139 ,  H04N19/70 ,  H04N19/51 ,  H04N19/105

CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/139 ,  H04N19/52 ,  H04N19/597 ,  H04N19/70

Abstract: In one example, a device includes a video coder (e.g., a video encoder or a video decoder) configured to determine that a block of video data is to be coded in accordance with a three-dimensional extension of High Efficiency Video Coding (HEVC), and, based the determination that the block is to be coded in accordance with the three-dimensional extension of HEVC, disable temporal motion vector prediction for coding the block. The video coder may be further configured to, when the block comprises a bi-predicted block (B-block), determine that the B-block refers to a predetermined pair of pictures in a first reference picture list and a second reference picture list, and, based on the determination that the B-block refers to the predetermined pair, equally weight contributions from the pair of pictures when calculating a predictive block for the block.

Abstract translation: 在一个示例中，设备包括被配置为根据高效率视频编码（HEVC）的三维扩展来确定视频数据块要被编码的视频编码器（例如，视频编码器或视频解码器） 并且基于根据HEVC的三维扩展来确定块要被编码的确定，禁止对块进行编码的时间运动矢量预测。 视频编码器还可以被配置为当块包括双预测块（B块）时，确定B块参考第一参考图像列表和第二参考图像列表中的预定图像对， 并且基于当计算块的预测块时，基于B块参考预定对的确定，来自该对图像的同等重量贡献。