公开(公告)号：US20140301460A1

公开(公告)日：2014-10-09

申请号：US14245864

申请日：2014-04-04

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Xianglin Wang

IPC: H04N19/146 ,  H04N19/593

CPC classification number: H04N19/11 ,  H04N19/14 ,  H04N19/146 ,  H04N19/147 ,  H04N19/149 ,  H04N19/18 ,  H04N19/19 ,  H04N19/593

Abstract: This disclosure describes techniques for rate control for intra coded frames. In one example of the disclosure, a rate control parameter may be calculated using a target bit rate and a complexity measure. In one example, the complexity measure is calculated with a sum of absolute transformed differences (SATD) calculation of an intra-coded frame.

Abstract translation: 本公开描述了用于帧内编码帧的速率控制的技术。 在本公开的一个示例中，可以使用目标比特率和复杂度度量来计算速率控制参数。 在一个示例中，使用帧内编码帧的绝对变换差（SATD）计算的和来计算复杂度度量。

公开(公告)号：US20140286412A1

公开(公告)日：2014-09-25

申请号：US14223945

申请日：2014-03-24

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Joel Sole Rojals ,  Marta Karczewicz

IPC: H04N19/593 ,  H04N19/65

CPC classification number: H04N19/467 ,  H04N19/436 ,  H04N19/593 ,  H04N19/70

Abstract: A video coder may generate a predictive block. As part of generating the predictive block, the video coder may use at least one of a losslessly reconstructed sample to left of a current sample in a current row of a predictive block and a losslessly reconstructed sample for a row of the predictive block above the current row for DC prediction of the current sample.

Abstract translation: 视频编码器可以生成预测块。 作为生成预测块的一部分，视频编码器可以使用在预测块的当前行中的当前样本的左侧的无损重建样本中的至少一个以及当前值之上的预测块的行的无损重建样本中的至少一个 行用于当前样本的直流预测。

公开(公告)号：US20140198855A1

公开(公告)日：2014-07-17

申请号：US14153284

申请日：2014-01-13

Applicant: QUALCOMM Incorporated

Inventor： Joel Sole Rojals ,  Marta Karczewicz

IPC: H04N19/593

CPC classification number: H04N19/11 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/59 ,  H04N19/593 ,  H04N19/70

Abstract: Systems, devices, and methods for coding video data may limit an intra-prediction angle to predict a chroma component from a reference array. The limited intra-prediction angle used varies between a value that is less than or equal to a maximum intra-prediction angle of a luma component. The systems, devices, and methods for coding video data may code a chroma intra-coded current block based on the limited intra-prediction angle. In another example, systems devices, and methods for coding video data may extend the reference array based on reference values that are outside the reference array in a video coding scheme including a number of intra-prediction angles, store prediction values in the extended reference array, and intra-coding a current block based on at least the prediction values in the extended reference array.

Abstract translation: 用于编码视频数据的系统，设备和方法可以限制帧内预测角度以从参考阵列预测色度分量。 所使用的有限帧内预测角度在小于或等于亮度分量的最大帧内预测角度的值之间变化。 用于编码视频数据的系统，设备和方法可以基于有限的帧内预测角度对色度帧内编码的当前块进行编码。 在另一示例中，用于编码视频数据的系统设备和方法可以基于包括多个帧内预测角度的视频编码方案中的参考阵列之外的参考值来扩展参考阵列，在扩展参考阵列中存储预测值 并且至少基于扩展参考阵列中的预测值对当前块进行帧内编码。

公开(公告)号：US20140176674A1

公开(公告)日：2014-06-26

申请号：US14133994

申请日：2013-12-19

Applicant: QUALCOMM Incorporated

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

IPC: H04N13/00

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：US20140168363A1

公开(公告)日：2014-06-19

申请号：US14104053

申请日：2013-12-12

Applicant: QUALCOMM Incorporated

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

IPC: H04N13/00 ,  H04N19/597 ,  H04N19/11 ,  H04N19/55 ,  H04N19/593 ,  H04N19/44

CPC classification number: H04N13/128 ,  H04N19/105 ,  H04N19/11 ,  H04N19/156 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/55 ,  H04N19/593 ,  H04N19/597

Abstract: A parent block is partitioned into the plurality of blocks and a disparity vector derivation process is performed to derive a disparity vector for a representative block in the plurality of blocks. A video encoder generates a bitstream that includes a coded representation of the video data in part by performing, based on the derived disparity vector and without separately deriving disparity vectors for any block in the plurality of blocks other than the representative block, inter-view prediction for two or more blocks in the plurality of blocks. A video decoder reconstructs sample blocks for two or more blocks in the plurality of blocks in part by performing, based on the derived disparity vector and without separately deriving disparity vectors for any block in the plurality of blocks other than the representative block, inter-view prediction for the two or more blocks in the plurality of blocks.

Abstract translation: 将父块划分为多个块，并执行视差矢量导出处理以导出多个块中的代表块的视差矢量。 视频编码器生成包括视频数据的编码表示的比特流，部分地通过基于导出的视差向量执行，并且除了代表块之外的多个块中的任何块的任何块没有单独导出视差向量，视角间预测 对于多个块中的两个或更多块。 视频解码器部分地通过基于导出的视差向量来执行多个块中的两个或更多个块的采样块，并且除了代表块之外的多个块中的任何块的任何块没有单独导出视差矢量， 预测多个块中的两个或多个块。

公开(公告)号：US20140161188A1

公开(公告)日：2014-06-12

申请号：US14098344

申请日：2013-12-05

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N7/36 ,  H04N7/32 ,  H04N7/26

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 a location of a temporal reference block indicated by a temporal motion vector to a current block of video data, where the current block and the temporal reference block are located in a first layer of video data. The method also includes interpolating, with a first type of interpolation, a location of a disparity reference block indicated by a disparity vector of the current block, where the disparity reference block is located in a second, different layer, and where the first type of interpolation comprises a bi-linear filter. The method also includes determining a temporal-disparity reference block of the disparity reference block indicated by a combination of the temporal motion vector and the disparity vector, and coding the current block based on the temporal reference block, the disparity reference block, and the temporal-disparity reference block.

Abstract translation: 在一个示例中，视频数据的编码方法包括：将由时间运动矢量指示的时间参考块的位置确定为视频数据的当前块，其中当前块和时间参考块位于第一层视频中 数据。 该方法还包括利用第一类型的内插来插值由当前块的视差向量指示的视差参考块的位置，其中视差参考块位于第二不同层中，并且其中第一类型 插值包括双线性滤波器。 该方法还包括确定由时间运动矢量和视差向量的组合指示的视差参考块的时间 - 视差参考块，并且基于时间参考块，视差参考块和时间参数块对当前块进行编码 二极性参考块。

公开(公告)号：US20140140399A1

公开(公告)日：2014-05-22

申请号：US14084285

申请日：2013-11-19

Applicant: QUALCOMM INCORPORATED

Inventor： Vadim Seregin ,  Ye-Kui Wang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/187

CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/187 ,  H04N19/30

Abstract: A method of coding video data includes receiving video information associated with a first layer and a second layer and determining whether at least one of the first layer and the second layer is a default layer. The method can include at least partially restricting inter-layer prediction when neither the first layer nor the second layer is the default layer. A default layer can be a base layer or an enhancement layer. A flag can be received that indicates that inter-layer prediction is to be restricted. In addition, the method can include determining whether inter-layer prediction is allowed for the video information associated with the first layer, and determining whether inter-layer prediction is partially allowed for the video information associated with the second layer such that motion compensation is not used with the second layer video information.

Abstract translation: 一种编码视频数据的方法包括接收与第一层和第二层相关联的视频信息，并且确定第一层和第二层中的至少一个是默认层。 当第一层和第二层都不是默认层时，该方法可以包括至少部分限制层间预测。 默认层可以是基础层或增强层。 可以接收到指示层间预测被限制的标志。 此外，该方法可以包括确定是否允许与第一层相关联的视频信息的层间预测，以及确定是否部分地允许与第二层相关联的视频信息的层间预测，使得运动补偿不是 与第二层视频信息一起使用。

公开(公告)号：US20140086328A1

公开(公告)日：2014-03-27

申请号：US14035754

申请日：2013-09-24

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/52 ,  H04N19/30 ,  H04N19/31

Abstract: In one example, a device includes a video coder configured to determine a temporal motion vector predictor for a motion vector associated with a block of video data of a current picture of a first, non-base layer of a plurality of layers of video data using a temporal motion vector prediction process, wherein the temporal motion vector prediction process includes identifying a co-located picture from which to derive the temporal motion vector predictor, and restrict the temporal motion vector prediction process such that the co-located picture used to derive the temporal motion vector predictor is not located in a layer other than the first layer of the plurality of layers of video data.

Abstract translation: 在一个示例中，设备包括视频编码器，其被配置为确定与多个视频数据层的第一非基本层的当前图像的视频数据块相关联的运动向量的时间运动矢量预测器，其使用 时间运动矢量预测处​​理，其中所述时间运动矢量预测处​​理包括识别从其导出时间运动矢量预测器的同位置画面，并且限制时间运动矢量预测处​​理，使得用于导出 时间运动矢量预测器不位于多个视频数据层中的第一层之外的层中。

公开(公告)号：US20140078251A1

公开(公告)日：2014-03-20

申请号：US14031791

申请日：2013-09-19

Applicant: QUALCOMM Incorporated

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

IPC: H04N13/00

CPC classification number: H04N13/161 ,  H04N19/105 ,  H04N19/134 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597 ,  H04N19/70

Abstract: When coding multiview video data, a video encoder and video decoder may select a candidate picture from one of one or more random access point view component (RAPVC) pictures and one or more pictures having a lowest temporal identification value. The video encoder and video decoder may determine whether a block in the selected candidate picture is inter-predicted with a disparity motion vector and determine a disparity vector for a current block of a current picture based on the disparity motion vector. The video encoder and video decoder may inter-prediction encode or decode, respectively, the current block based on the determined disparity vector.

Abstract translation: 当编码多视点视频数据时，视频编码器和视频解码器可以从一个或多个随机接入点视图分量（RAPVC）图像和具有最低时间标识值的一个或多个图像中的一个中选择候选图像。 视频编码器和视频解码器可以确定所选择的候选图像中的块是否以视差运动矢量进行预测，并且基于视差运动矢量来确定当前图像的当前块的视差向量。 视频编码器和视频解码器可以基于所确定的视差矢量来分别对当前块进行预测编码或解码。

公开(公告)号：US20130343464A1

公开(公告)日：2013-12-26

申请号：US13922851

申请日：2013-06-20

Applicant: Qualcomm Incorporated

Inventor： Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N7/30

CPC classification number: H04N19/60 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

Abstract: A device for coding video data includes a video coder configured to: determine for a chroma transform block (TB) a sub-sampling format for the chroma TB; based on the sub-sampling format for the chroma TB, identify one or more corresponding luma TBs; determine, for each of the one or more corresponding luma TBs, if the corresponding luma TB is coded using a transform skip mode; and, based on a number of the one or more corresponding luma TBs coded using the transform skip mode being greater than or equal to a threshold value, determine that the chroma TB is coded in the transform skip mode.

Abstract translation: 用于编码视频数据的设备包括视频编码器，其被配置为：为色度变换块（TB）确定色度TB的子采样格式; 基于色度TB的子采样格式，识别一个或多个对应的亮度TB; 对于一个或多个对应亮度TB中的每一个，确定如果使用变换跳过模式对相应亮度TB进行编码; 并且基于使用变换跳过模式编码的一个或多个相应亮度TB的数量大于或等于阈值的数量，确定色变TB以变换跳过模式被编码。