公开(公告)号：US09467701B2

公开(公告)日：2016-10-11

申请号：US13739598

申请日：2013-01-11

Applicant: Qualcomm Incorporated

Inventor： Liwei Guo ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/50 ,  H04N19/96 ,  H04N19/46 ,  H04N19/186 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/96 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/70

Abstract: A video encoder generates a bitstream that includes a residual quad tree (RQT) for a coding unit (CU). The CU is larger than a maximum-allowable transform unit (TU) size and the RQT includes a hierarchy of nodes. A root node of the RQT corresponds to the CU as a whole and leaf nodes of the RQT correspond to TUs of the CU. The root node is associated with a coded block flag (CBF) for a chroma component. The CBF for the chroma component indicates whether any of the TUs of the CU are associated with a significant coefficient block that is based on samples of the particular chroma component. A video decoder receives the bitstream and determines, based on the CBF, whether coefficient blocks associated with TUs that correspond to the leaf nodes include non-zero coefficients.

Abstract translation: 视频编码器生成包括用于编码单元（CU）的残余四叉树（RQT）的比特流。 CU大于最大允许变换单位（TU）大小，并且RQT包括节点层级。 RQT的根节点对应于CU，并且RQT的叶节点对应于CU的TU。 根节点与色度分量的编码块标志（CBF）相关联。 用于色度分量的CBF指示CU中的任何TU是否与基​​于特定色度分量的样本的显着系数块相关联。 视频解码器接收比特流并且基于CBF确定与叶节点对应的TU相关联的系数块是否包括非零系数。

公开(公告)号：US20160261870A1

公开(公告)日：2016-09-08

申请号：US14737271

申请日：2015-06-11

Applicant: QUALCOMM Incorporated

Inventor： Chengjie Tu ,  Wei-Jung Chien ,  Xianglin Wang ,  Jaehong Chon ,  In Suk Chong ,  Marta Karczewicz ,  Woo-Shik Kim ,  Xin Zhao

IPC: H04N19/147 ,  H04N19/14 ,  H04N19/174 ,  H04N19/176

CPC classification number: H04N19/14 ,  H04N19/109 ,  H04N19/119 ,  H04N19/147 ,  H04N19/157 ,  H04N19/174 ,  H04N19/176 ,  H04N19/567

Abstract: A video encoding device comprises a memory configured to store video data and at least one processor configured to: select one of a full rate-distortion (RD) checking scheme or a fast RD checking scheme, determine an RD cost associated with encoding a block of the video data based on the selected full RD checking scheme or fast RD checking scheme, determine a partitioning scheme for the block based on the determined RD cost, and encode the block using the determined partitioning scheme based on the determined RD cost.

Abstract translation: 视频编码装置包括：存储器，被配置为存储视频数据;以及至少一个处理器，被配置为：选择全速率失真（RD）检查方案或快速RD检查方案之一，确定与编码块 基于所选择的完整RD检查方案或快速RD检查方案的视频数据基于确定的RD成本确定块的分区方案，并且基于确定的RD成本使用确定的分区方案对块进行编码。

公开(公告)号：US09432685B2

公开(公告)日：2016-08-30

申请号：US14099800

申请日：2013-12-06

Applicant: QUALCOMM Incorporated

Inventor： Jaehong Chon ,  In Suk Chong ,  Hariharan Ganesh Lalgudi ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04B1/66 ,  H04N19/513 ,  H04N19/187 ,  H04N19/52 ,  H04N19/436

CPC classification number: H04N19/513 ,  H04N19/187 ,  H04N19/436 ,  H04N19/52

Abstract: A video coding device configured according to some aspects of this disclosure includes a memory configured to store a plurality of motion vector candidates. Each motion vector candidate can corresponding to at least one of a plurality of prediction units (PUs) partitioned in a parallel motion estimation region (MER). The video coding device also includes a processor in communication with the memory. The processor is configured to select a subset of the plurality of motion vector candidates to include in a merge candidate list. The selection can be based on a priority level of each motion vector candidate. The processor can be further configured to generate the merge candidate list to include the selected motion vector candidates.

Abstract translation: 根据本公开的一些方面配置的视频编码装置包括被配置为存储多个运动矢量候选的存储器。 每个运动矢量候选可以对应于在并行运动估计区域（MER）中分割的多个预测单元（PU）中的至少一个。 视频编码装置还包括与存储器通信的处理器。 处理器被配置为选择多个运动矢量候选的子集以包括在合并候选列表中。 该选择可以基于每个运动矢量候选的优先级。 处理器可以被进一步配置成生成合并候选列表以包括所选择的运动向量候选。

公开(公告)号：US09426463B2

公开(公告)日：2016-08-23

申请号：US13761924

申请日：2013-02-07

Applicant: Qualcomm Incorporated

Inventor： Vadim Seregin ,  Xianglin Wang ,  Joel Sole Rojals ,  Muhammed Zeyd Coban ,  Marta Karczewicz

IPC: H04N19/159 ,  H04N19/577 ,  H04N19/51 ,  H04N19/52 ,  H04N19/176 ,  H04N19/109

CPC classification number: H04N19/51 ,  H04N19/109 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/577

Abstract: A video coding device generates a motion vector (MV) candidate list for a prediction unit (PU) of a coding unit (CU) that is partitioned into four equally-sized PUs. The video coding device converts a bi-directional MV candidate in the MV candidate list into a uni-directional MV candidate. In addition, the video coding device determines a selected MV candidate in the merge candidate list and generates a predictive video block for the PU based at least in part on one or more reference blocks indicated by motion information specified by the selected MV candidate.

Abstract translation: 视频编码装置生成被划分为四个相同尺寸的PU的编码单元（CU）的预测单元（PU）的运动矢量（MV）候选列表。 视频编码装置将MV候选列表中的双向MV候选转换为单向MV候选。 此外，视频编码装置在合并候选列表中确定选定的MV候选，并且至少部分地基于由所选择的MV候选项指定的运动信息指示的一个或多个参考块生成用于PU的预测视频块。

公开(公告)号：US09392268B2

公开(公告)日：2016-07-12

申请号：US14035674

申请日：2013-09-24

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Xianglin Wang ,  Chengjie Tu ,  Ying Chen ,  Marta Karczewicz

IPC: H04N7/26 ,  H04N19/105 ,  H04N19/52 ,  H04N19/30

CPC classification number: H04N19/105 ,  H04N19/30 ,  H04N19/52

Abstract: Systems, methods, and devices for coding video data are described herein. In some aspects, a memory is configured to store the video data associated with a base layer and an enhancement layer. The base layer may comprise a reference block and base layer motion information associated with the reference block. The enhancement layer may comprise a current block. A processor operationally coupled to the memory is configured to determine a position of the base layer motion information in a candidate list based on a prediction mode in a plurality of prediction modes used at the enhancement layer. The processor is further configured to perform a prediction of the current block based at least in part on the candidate list.

Abstract translation: 本文描述了用于编码视频数据的系统，方法和设备。 在一些方面，存储器被配置为存储与基本层和增强层相关联的视频数据。 基本层可以包括与参考块相关联的参考块和基本层运动信息。 增强层可以包括当前块。 可操作地耦合到存储器的处理器被配置为基于在增强层处使用的多种预测模式中的预测模式来确定候选列表中的基本层运动信息的位置。 处理器还被配置为至少部分地基于候选列表来执行当前块的预测。

公开(公告)号：US09386305B2

公开(公告)日：2016-07-05

申请号：US13682293

申请日：2012-11-20

Applicant: Qualcomm Incorporated

Inventor： In Suk Chong ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N7/26 ,  H04N11/02 ,  H04N19/66 ,  H04N19/115 ,  H04N19/70 ,  H04N19/61 ,  H04N19/117 ,  H04N19/136 ,  H04N19/18 ,  H04N19/174 ,  H04N19/17 ,  H04N19/82

CPC classification number: H04N19/115 ,  H04N19/117 ,  H04N19/136 ,  H04N19/17 ,  H04N19/174 ,  H04N19/18 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

Abstract: This disclosure relates to techniques for performing sample adaptive offset (SAO) processes in a video coding process. A video coder may store sets of SAO information. The SAO information may include data indicative of offset values. The video coder may also store mapping information that maps at least some of the sets of SAO information for one or more sequence partitions of a frame of video data. Additionally, the video coder may perform the SAO processes for one of the partitions of the frame based on the stored SAO information and the stored mapping information.

Abstract translation: 本公开涉及用于在视频编码过程中执行采样自适应偏移（SAO）处理的技术。 视频编码器可以存储一组SAO信息。 SAO信息可以包括指示偏移值的数据。 视频编码器还可以存储映射信息，其映射视频数据帧的一个或多个序列分区的SAO信息集合中的至少一些。 此外，视频编码器可以基于存储的SAO信息和存储的映射信息，对帧的一个分区执行SAO处理。

公开(公告)号：US09363516B2

公开(公告)日：2016-06-07

申请号：US13744019

申请日：2013-01-17

Applicant: Qualcomm Incorporated

Inventor： Geert Van der Auwera ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/26 ,  H04N19/85 ,  H04N19/117 ,  H04N19/186 ,  H04N19/82

CPC classification number: H04N19/85 ,  H04N19/117 ,  H04N19/186 ,  H04N19/82

Abstract: A video coding device is configured to obtain an array of sample values. The sample values may be formatted according to a 4:2:0, 4:2:2, or 4:4:4 chroma format. The video coding device determines whether to apply a first filter to rows of chroma sample values associated with defined horizontal edges within the array. The video coding device determines whether to apply a second filter to columns of chroma sample values associated with defined vertical edges. The horizontal and vertical edges may be separated by a number of chroma samples according to a deblocking grid.

Abstract translation: 视频编码装置被配置为获得样本值的数组。 样本值可以根据4：2：0,4：2：2或4：4：4色度格式进行格式化。 视频编码装置确定是否将第一滤波器应用于与阵列内的限定水平边缘相关联的色度采样值的行。 视频编码装置确定是否对与定义的垂直边缘相关联的色度样本值的列应用第二滤波器。 根据解块栅格，水平和垂直边缘可以被多个色度样本分开。

公开(公告)号：US09338451B2

公开(公告)日：2016-05-10

申请号：US13861302

申请日：2013-04-11

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N11/02 ,  H04N19/51 ,  H04N19/52 ,  H04N19/463 ,  H04N19/174 ,  H04N19/43 ,  H04N19/436 ,  H04N19/56

CPC classification number: H04N19/51 ,  H04N19/174 ,  H04N19/43 ,  H04N19/436 ,  H04N19/463 ,  H04N19/52 ,  H04N19/56

Abstract: In one example, an apparatus for coding video data comprises a video coder configured to, for a parallel motion estimation (PME) region comprising a plurality of blocks of video data within the PME region, identify a common set of spatial candidate blocks outside of and adjacent to the PME region, each of the common set of spatial candidate blocks at a respective, predefined location relative to the PME region and, for each of the blocks within the PME region for which motion information prediction is performed, generate a respective motion information candidate list, wherein, for at least some of the blocks within the PME region for which motion information prediction is performed, generating the motion information candidate list comprises evaluating motion information of at least one of the common set of spatial candidate blocks for inclusion in the motion information candidate list for the block.

Abstract translation: 在一个示例中，用于对视频数据进行编码的装置包括：视频编码器，被配置为：对于包括PME区域内的多个视频数据块的并行运动估计（PME）区域，识别出在该PME区域外的一组共同的空间候选块， 与PME区域相邻，在相对于PME区域的相应的预定位置处的每个公共空间候选块集合以及对于执行运动信息预测的PME区域内的每个块生成相应的运动信息 候选列表，其中，对于执行运动信息预测的PME区域中的至少一些块生成运动信息候选列表，包括评估所述公共空间候选块中的至少一个的运动信息，以包含在所述候选列表中 块的运动信息候选列表。

公开(公告)号：US20150229955A1

公开(公告)日：2015-08-13

申请号：US14695941

申请日：2015-04-24

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/109 ,  H04N19/159 ,  H04N19/577

CPC classification number: H04N19/52 ,  H04N19/109 ,  H04N19/159 ,  H04N19/176 ,  H04N19/577

Abstract: A computing device determines whether a prediction unit (PU) in a B slice is restricted to uni-directional inter prediction. In addition, the computing device generates a merge candidate list for the PU and determines a selected merge candidate in the merge candidate list. If the PU is restricted to uni-directional inter prediction, the computing device generates a predictive video block for the PU based on no more than one reference block associated with motion information specified by the selected merge candidate. If the PU is not restricted to uni-directional inter prediction, the computing device generates the predictive video block for the PU based on one or more reference blocks associated with the motion information specified by the selected merge candidate.

Abstract translation: 计算装置确定B片中的预测单元（PU）是否被限制为单向帧间预测。 此外，计算装置生成PU的合并候选列表，并确定合并候选列表中所选择的合并候选。 如果PU被限制为单向帧间预测，则计算设备基于与由所选择的合并候选指定的运动信息相关联的不超过一个参考块来生成PU的预测视频块。 如果PU不限于单向帧间预测，则计算设备基于与由所选择的合并候选指定的运动信息相关联的一个或多个参考块生成PU的预测视频块。

公开(公告)号：US20140294078A1

公开(公告)日：2014-10-02

申请号：US14227839

申请日：2014-03-27

Applicant: QUALCOMM Incorporated

Inventor： Vadim Seregin ,  Xianglin Wang ,  Joel Sole Rojals

IPC: H04N19/51 ,  H04N19/577

CPC classification number: H04N19/513 ,  H04N19/109 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/426 ,  H04N19/503 ,  H04N19/577

Abstract: In one example, an apparatus for coding video data comprises a video coder configured to obtain a motion vector for predicting a video block with a non-4:2:0 chroma format, determine a video block size for the video block, modify the motion vector to generate a modified motion vector for obtaining samples of at least one reference picture with which to predict the video block if the video block size meets a size criterion, and generate a prediction block for the video block using the samples of the at least one reference picture and the modified motion vector.

Abstract translation: 在一个示例中，用于对视频数据进行编码的装置包括视频编码器，被配置为获得用于以非4：2：0色度格式预测视频块的运动矢量，确定视频块的视频块大小，修改运动 向量，以产生修改的运动矢量，用于获得至少一个参考图像的样本，以便如果所述视频块大小满足大小标准则用于预测所述视频块，并且使用所述至少一个参考图像的采样生成所述视频块的预测块 参考图片和修改的运动矢量。