公开(公告)号：US20140092967A1

公开(公告)日：2014-04-03

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

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：US20130329806A1

公开(公告)日：2013-12-12

申请号：US13910023

申请日：2013-06-04

Applicant: QUALCOMM Incorporated

Inventor： Chengjie TU ,  Jianle CHEN ,  Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: In one example, an apparatus is configured to code video data. The apparatus comprises a processor configured to determine a base layer reference block for a current block. The base layer reference block may be located in the base layer. The processor is further configured to determine an enhancement layer reference block for the current block. The enhancement layer reference block may comprise a weighted sum of a first reference block located in the enhancement layer and a second reference block located in the enhancement layer. The processor is further configured to determine a reference block from the base layer reference block and the enhancement layer reference block.

Abstract translation: 在一个示例中，设备被配置为对视频数据进行编码。 该装置包括被配置为确定当前块的基本层参考块的处理器。 基层参考块可以位于基层中。 处理器还被配置为确定当前块的增强层参考块。 增强层参考块可以包括位于增强层中的第一参考块和位于增强层中的第二参考块的加权和。 处理器还被配置为从基本层参考块和增强层参考块确定参考块。

公开(公告)号：US20130287109A1

公开(公告)日：2013-10-31

申请号：US13869592

申请日：2013-04-24

Applicant: QUALCOMM INCORPORATED

Inventor： Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N7/50

CPC classification number: H04N19/176 ,  H04N19/119 ,  H04N19/136 ,  H04N19/139 ,  H04N19/157 ,  H04N19/187 ,  H04N19/33 ,  H04N19/46 ,  H04N19/537 ,  H04N19/61 ,  H04N19/70

Abstract: An apparatus for coding video data according to certain aspects includes a memory and a processor in communication with the memory. The memory stores the video data. The video data may include a base layer and an enhancement layer, the base layer including a base layer block and the enhancement layer including an enhancement layer block. The base layer block may be located at a position in the base layer corresponding to a position of the enhancement layer block in the enhancement layer. The processor determines, based on information associated with the base layer block, a partitioning mode of the enhancement layer block. The partitioning mode may indicate that the enhancement layer block is to be partitioned into a first partition and a second partition. The processor further performs motion compensation for the first partition and the second partition of the enhancement layer block.

Abstract translation: 根据某些方面的用于编码视频数据的装置包括与存储器通信的存储器和处理器。 存储器存储视频数据。 视频数据可以包括基本层和增强层，基本层包括基本层块，增强层包括增强层块。 基本层块可以位于与增强层中的增强层块的位置相对应的基本层中的位置。 处理器基于与基本层块相关联的信息确定增强层块的分割模式。 分区模式可以指示增强层块被划分成第一分区和第二分区。 处理器还对增强层块的第一分区和第二分区执行运动补偿。

公开(公告)号：US20130272411A1

公开(公告)日：2013-10-17

申请号：US13860491

申请日：2013-04-10

Applicant: QUALCOMM INCORPORATED

Inventor： Chengjie TU ,  Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N11/02

CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/11 ,  H04N19/13 ,  H04N19/147 ,  H04N19/176 ,  H04N19/187 ,  H04N19/30 ,  H04N19/33 ,  H04N19/52 ,  H04N19/91

Abstract: This disclosure pertains to video coding. Prediction information for a current block in an enhancement layer may be determined based at least in part on base layer information obtained by coding a base block in a base layer beneath the enhancement layer. This base block may occur in a position in the base layer such that it is co-located with a non-causal block in the enhancement layer (e.g., a block that occurs after the current block in the coding order of the enhancement layer). The prediction information determined for the current block may be used to code the current block (e.g., encoding or decoding the current block).

Abstract translation: 本公开涉及视频编码。 可以至少部分地基于通过对增强层下的基本层中的基本块进行编码获得的基本层信息来确定增强层中的当前块的预测信息。 该基块可以发生在基本层中的位置，使得其与增强层中的非因果块（例如，在增强层的编码顺序中的当前块之后发生的块）共同定位。 为当前块确定的预测信息可用于对当前块进行编码（例如，对当前块进行编码或解码）。

公开(公告)号：US20130272409A1

公开(公告)日：2013-10-17

申请号：US13860314

申请日：2013-04-10

Applicant: QUALCOMM INCORPORATED

Inventor： Vadim SEREGIN ,  Muhammed Zeyd COBAN ,  Xianglin WANG ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N11/02

CPC classification number: H04N19/56 ,  H04N19/172 ,  H04N19/433 ,  H04N19/44 ,  H04N19/51 ,  H04N19/52

Abstract: Techniques for encoding and decoding video data are described. A method of coding video may include determining a plurality of motion vector candidates for a block of video data for use in a motion vector prediction process, wherein each of the motion vector candidates points to a respective reference frame index, performing the motion vector prediction process using the motion vector candidates to determine a motion vector for the block of video data, and performing motion compensation for the block of video data using the motion vector and a common reference frame index, wherein the common reference frame index is used regardless of the respective reference frame index associated with the determined motion vector.

Abstract translation: 描述用于编码和解码视频数据的技术。 编码视频的方法可以包括确定用于运动矢量预测处​​理中的视频数据块的多个运动矢量候选，其中每个运动矢量候选指向相应的参考帧索引，执行运动矢量预测处​​理 使用运动矢量候选来确定视频数据块的运动矢量，并且使用运动矢量和公共参考帧索引对视频数据块执行运动补偿，其中使用公共参考帧索引而不管相应的 与确定的运动矢量相关联的参考帧索引。

公开(公告)号：US20130272377A1

公开(公告)日：2013-10-17

申请号：US13828173

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Marta KARCZEWICZ ,  Vadim SEREGIN ,  Xianglin WANG ,  Muhammed Zeyd Coban

IPC: H04N7/26 ,  H03M7/30

CPC classification number: H04N19/103 ,  H03M7/30 ,  H04N19/13 ,  H04N19/463 ,  H04N19/70

Abstract: In an example, aspects of this disclosure relate to a method for decoding a reference index syntax element in a video decoding process that includes decoding at least one bin of a reference index value with a context coding mode of a context-adaptive binary arithmetic coding (CABAC) process. The method also includes decoding, when the reference index value comprises more bins than the at least one bin coded with the context coded mode, at least another bin of the reference index value with a bypass coding mode of the CABAC process, and binarizing the reference index value.

Abstract translation: 在一个示例中，本公开的方面涉及用于对视频解码过程中的参考索引语法元素进行解码的方法，该方法包括使用上下文自适应二进制算术编码的上下文编码模式对参考索引值的至少一个bin进行解码（ CABAC）过程。 该方法还包括解码，当参考索引值包括比用上下文编码模式编码的至少一个分组的更多的分组时，至少具有CABAC处理的旁路编码模式的参考索引值的另一个bin，并且对参考进行二值化 指数值

公开(公告)号：US20130251030A1

公开(公告)日：2013-09-26

申请号：US13838270

申请日：2013-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/30 ,  H04N19/105 ,  H04N19/154 ,  H04N19/167 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/46 ,  H04N19/59

Abstract: An apparatus for coding video information according to certain aspects is disclosed. Multi-layer video steams including a base layer and an enhancement layer can be coded. Predictors generated for the base layer and the enhancement layer can be combined to form a final predictor of the enhancement layer. Each predictor can be weighted such that those predictors which are more likely to produce high quality results can be factored more heavily in the final predictor. The conditions upon which the respective weights for enhancement layer predictors and base layer predictors are determined may be implicitly derived from the predictors or characteristics thereof. Alternatively, data may be generated explicating indicating the weights or providing information from which the weights can be determined.

Abstract translation: 公开了一种根据某些方面对视频信息进行编码的装置。 可以编码包括基本层和增强层的多层视频流。 为基层和增强层生成的预测器可以组合以形成增强层的最终预测器。 每个预测器都可以被加权，使得最有可能产生高质量结果的那些预测变量在最终预测器中可以被更多地考虑在内。 确定增强层预测器和基础层预测器的相应权重的条件可以从预测器或其特征隐含地导出。 或者，可以生成说明表示权重的信息或提供可以从其确定权重的信息。

公开(公告)号：US20150264403A1

公开(公告)日：2015-09-17

申请号：US14216086

申请日：2014-03-17

Applicant: QUALCOMM INCORPORATED

Inventor： In Suk CHONG ,  Yang YU ,  Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N19/61 ,  H04N19/186 ,  H04N19/182 ,  H04N19/176 ,  H04N19/18

CPC classification number: H04N19/61 ,  H04N19/122 ,  H04N19/132 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18

Abstract: Systems and methods for low complexity forward transforms using zeroed-out coefficients are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory configured to store a video block. The video encoder further comprises a processor in communication with the memory. The processor is configured to determine a full power value of the video block. The processor is further configured to determine a reduced transform coefficient matrix, wherein the reduced transform coefficient matrix comprises an inner region of zero or non-zero values of the same inner region of a full transform coefficient matrix and an outer region of zero values, wherein the reduced transform coefficient matrix and the full transform coefficient matrix have the same size. The processor is further configured to determine a partial power value of the video block using the reduced transform coefficient matrix. The processor is further configured to transform the video block from a pixel domain to a coefficient domain using the reduced transform coefficient matrix based on the full power value and partial power value. The processor is further configured to encode the transformed video block.

Abstract translation: 本文描述了使用零缺失系数的低复杂度正向变换的系统和方法。 在本公开中描述的主题的一个方面提供了一种视频编码器，其包括被配置为存储视频块的存储器。 视频编码器还包括与存储器通信的处理器。 处理器被配置为确定视频块的全功率值。 处理器还被配置为确定缩小的变换系数矩阵，其中所述经简化的变换系数矩阵包括全变换系数矩阵和零值的外部区域的相同内部区域的零或非零值的内部区域，其中 减小的变换系数矩阵和全变换系数矩阵具有相同的大小。 处理器还被配置为使用缩减的变换系数矩阵来确定视频块的部分功率值。 处理器还被配置为使用基于全功率值和部分功率值的减小的变换系数矩阵将视频块从像素域变换到系数域。 处理器还被配置为对经变换的视频块进行编码。

公开(公告)号：US20140219349A1

公开(公告)日：2014-08-07

申请号：US13760750

申请日：2013-02-06

Applicant: QUALCOMM INCORPORATED

Inventor： Wei-Jung CHIEN ,  Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/433 ,  H04N19/436

Abstract: In general, techniques are described for reducing the space required to store rate distortion values when selecting from multiple, different prediction modes. A video coding device comprising a processor may perform the techniques. The processor may determine first and second sets of intra-prediction modes for a current block of video data. The first and second sets of intra-prediction modes may include less intra-prediction modes, collectively, than a total number of intra-prediction modes. The processor may compute an approximate cost for each intra-prediction mode included in the first and second sets of intra-prediction modes. The processor may store the approximate cost for each intra-prediction mode identified in the first and second sets of intra-prediction modes to a memory. The processor may perform intra-prediction to encode the current block using a mode identified in at least one of the first or second set.

Abstract translation: 通常，描述了当从多个不同的预测模式进行选择时，减少存储速率失真值所需的空间的技术。 包括处理器的视频编码装置可以执行这些技术。 处理器可以确定当前视频数据块的第一组和第二组帧内预测模式。 第一组和第二组帧内预测模式可以包括比帧内预测模式的总数更少的帧内预测模式。 处理器可以计算包括在第一和第二组帧内预测模式中的每个帧内预测模式的近似成本。 处理器可以将在第一和第二组帧内预测模式中识别的每个帧内预测模式的近似成本存储到存储器。 处理器可以执行帧内预测，​​以使用在第一或第二组中的至少一个中识别的模式对当前块进行编码。

公开(公告)号：US20130329789A1

公开(公告)日：2013-12-12

申请号：US13909911

申请日：2013-06-04

Applicant: Qualcomm Incorporated

Inventor： Xianglin WANG ,  Vadim SEREGIN

IPC: H04N7/32

CPC classification number: H04N19/50 ,  H04N19/33 ,  H04N19/463 ,  H04N19/59 ,  H04N19/597

Abstract: In one embodiment, a video coder for processing video data includes a processor and a memory. The processor is configured to downsample at least prediction mode information of a reference layer block. In addition, the processor is configured to predict at least one of an enhancement layer block or prediction mode information of the enhancement layer block based at least on the prediction mode information of the reference layer block before the processor downsamples the prediction mode information of the reference layer block. The memory is configured to store the prediction mode information of the reference layer block. The prediction mode information of the reference layer block, for example, includes an inter-prediction mode, an intra-prediction mode, or a motion vector of the reference layer block.

Abstract translation: 在一个实施例中，用于处理视频数据的视频编码器包括处理器和存储器。 处理器被配置为对参考层块的至少预测模式信息进行下采样。 此外，处理器被配置为在处理器下采样参考的预测模式信息之前，至少基于参考层块的预测模式信息来预测增强层块的增强层块或预测模式信息中的至少一个信息 层块。 存储器被配置为存储参考层块的预测模式信息。 参考层块的预测模式信息例如包括参考层块的帧间预测模式，帧内预测模式或运动矢量。