公开(公告)号：WO2015006703A2

公开(公告)日：2015-01-15

申请号：PCT/US2014046370

申请日：2014-07-11

Applicant: QUALCOMM INC

Inventor： RAPAKA KRISHNAKANTH ,  WANG YE-KUI ,  RAMASUBRAMONIAN ADARSH KRISHNAN ,  CHEN JIANLE

IPC: H04N19/70

CPC classification number: H04N19/36 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/30 ,  H04N19/436 ,  H04N19/597 ,  H04N19/70 ,  H04N19/96

Abstract: Bitstream restrictions or constraints on the partitioning of pictures across layers of video data are described. In some examples, the number of tiles per picture for each layer of a plurality of layers is constrained based on a maximum number of tiles per picture for the layer. In some examples, the number of tiles per picture for each layer of the plurality of layers is no greater than the maximum number of tiles per picture for the layer. In some examples, a sum of the numbers of tiles per picture for the plurality of layers is no greater than a sum of the maximum numbers of tiles per picture for the plurality of layers. In some examples, a second largest coding unit (LCU) or coding tree block (CTB) size for a second layer is constrained based on, e.g., to be equal to, a first LCU size for a first layer.

Abstract translation: 描述了跨视频数据层的图像划分的位流限制或限制。 在一些示例中，每个图层对于多个层的每层的瓦片数量基于该图层每图层的最大数量被约束。 在一些示例中，多个层中的每层的每个图像的瓦片数量不大于该层的每个图像的最大瓦片数。 在一些示例中，多个层的每个图像的瓦片数量之和不大于多个层的每个图像的最大瓦片数的总和。 在一些示例中，用于第二层的第二大编码单元（LCU）或编码树块（CTB）尺寸基于例如等于第一层的第一LCU大小来约束。

公开(公告)号：WO2014036174A2

公开(公告)日：2014-03-06

申请号：PCT/US2013057139

申请日：2013-08-28

Applicant: QUALCOMM INC

Inventor： RAPAKA KRISHNAKANTH ,  CHEN JIANLE ,  KARCZEWICZ MARTA ,  SEREGIN VADIM

CPC classification number: H04N19/30 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/129 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/187 ,  H04N19/33 ,  H04N19/46 ,  H04N19/59 ,  H04N19/593

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores video information associated with a reference layer and a corresponding enhancement layer. The processor determines a value of a video unit positioned at a position within the enhancement layer based at least in part on an intra prediction value weighted by a first weighting factor, wherein the intra prediction value is determined based on at least one additional video unit in the enhancement layer, and a value of a co-located video unit in the reference layer weighted by a second weighting factor, wherein the co-located video unit is located at a position in the reference layer corresponding to the position of the video unit in the enhancement layer. In some embodiments, the at least one of the first and second weighting factors is between 0 and 1.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。 存储器单元存储与参考层和对应的增强层相关联的视频信息。 处理器至少部分基于由第一加权因子加权的帧内预测值来确定位于增强层内的位置处的视频单元的值，其中帧内预测值是基于至少一个附加视频单元确定的 所述增强层以及所述参考层中的共址视频单元的值通过第二加权因子进行加权，其中所述共址视频单元位于所述参考层中与所述视频单元的位置相对应的位置处 增强层。 在一些实施例中，第一和第二加权因子中的至少一个在0和1之间。

公开(公告)号：WO2013181595A3

公开(公告)日：2014-02-20

申请号：PCT/US2013043706

申请日：2013-05-31

Applicant: QUALCOMM INC

Inventor： CHEN YING ,  WANG YE-KUI ,  CHEN JIANLE

CPC classification number: H04N19/30 ,  H04N19/00569 ,  H04N19/597 ,  H04N19/70

Abstract: A video encoder generates a syntax element that indicates whether a video unit of a current picture is predicted from an external picture. The external picture is in a different layer than the current picture. Furthermore, the video encoder outputs a video data bitstream that includes a representation of the syntax element. The video data bitstream may or may not include a coded representation of the external picture. A video decoder obtains the syntax element from the video data bitstream. The video decoder uses the syntax element in a process to reconstruct video data of a portion of the video unit.

Abstract translation: 视频编码器生成指示从外部图像预测当前图像的视频单元的语法元素。 外部图像与当前图片不同。 此外，视频编码器输出包括语法元素的表示的视频数据比特流。 视频数据比特流可以包括或可以不包括外部图像的编码表示。 视频解码器从视频数据比特流获得语法元素。 视频解码器使用处理中的语法元素来重构视频单元的一部分的视频数据。

公开(公告)号：WO2014134334A3

公开(公告)日：2015-01-08

申请号：PCT/US2014019083

申请日：2014-02-27

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  GUO LIWEI ,  CHEN JIANLE ,  RAPAKA KRISHNAKANTH

IPC: H04N19/33 ,  H04N19/51

CPC classification number: H04N19/33 ,  H04N19/43 ,  H04N19/513 ,  H04N19/52 ,  H04N19/55 ,  H04N19/61

Abstract: In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory unit configured to store video information associated with a base layer and/or an enhancement layer. The apparatus further comprises a processor operationally coupled to the memory unit. In one embodiment, the processor is configured to determine (430) a scaling factor based on spatial dimension values associated with the base and enhancement layers such that the scaling factor is constrained within a predetermined range. The processor is also configured to spatially scale (440) an element associated with the base layer or enhancement layer using the scaling factor and a temporal motion vector scaling process.

Abstract translation: 在一个实现中，提供了一种用于对视频信息进行编码或解码的装置。 该装置包括被配置为存储与基本层和/或增强层相关联的视频信息的存储器单元。 该装置还包括可操作地耦合到存储器单元的处理器。 在一个实施例中，处理器被配置为基于与基本和增强层相关联的空间维度值来确定（430）缩放因子，使得缩放因子被限制在预定范围内。 处理器还被配置为使用缩放因子和时间运动矢量缩放处理来空间地缩放（440）与基本层或增强层相关联的元素。

公开(公告)号：WO2014025801A3

公开(公告)日：2014-04-10

申请号：PCT/US2013053819

申请日：2013-08-06

Applicant: QUALCOMM INC

Inventor： GUO LIWEI ,  CHEN JIANLE ,  TU CHENGJIE ,  KARCZEWICZ MARTA ,  LI XIANG ,  SEREGIN VADIM

CPC classification number: H04N19/00151 ,  H04N19/119 ,  H04N19/122 ,  H04N19/139 ,  H04N19/147 ,  H04N19/187 ,  H04N19/30 ,  H04N19/50 ,  H04N19/52

Abstract: Systems and methods for determining information about an enhancement layer of digital video based on information included in a base layer of digital video are described. In one innovative aspect, an apparatus for coding digital video is provided. The apparatus includes a memory for storing a base layer of digital video information and an enhancement layer of digital video information. The apparatus determines a syntax element value for a portion of the enhancement layer based on a syntax element value for a corresponding portion of the base layer. Decoding devices and methods as well as corresponding encoding devices and methods are described.

Abstract translation: 描述了基于数字视频基础层中包含的信息确定关于数字视频增强层的信息的系统和方法。 在一个创新的方面，提供了一种用于编码数字视频的装置。 该装置包括用于存储数字视频信息的基础层和数字视频信息的增强层的存储器。 该装置基于用于基本层的相应部分的语法元素值来确定增强层的一部分的语法元素值。 描述设备和方法的解码以及对应的编码设备和方法。

公开(公告)号：WO2016205693A3

公开(公告)日：2017-02-02

申请号：PCT/US2016038145

申请日：2016-06-17

Applicant: QUALCOMM INC

Inventor： ZHAO XIN ,  CHEN JIANLE ,  ZHANG LI ,  KARCZEWICZ MARTA

IPC: H04N19/176 ,  H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91

CPC classification number: H04N19/11 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91

Abstract: A device includes one or more processors configured to derive, from among a plurality of intra prediction modes, M most probable modes (MPMs) for intra prediction of a block of video data. A syntax element indicating 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 is decoded. Based on the indicated one of the MPM index or the non-MPM index being the MPM index, the one or more processors select, for each of one or more context-modeled bins of the MPM index, based on intra prediction modes used to decode one or more neighboring blocks, a context index for the context-modeled bin. The one or more processors reconstruct the block of video data based on the selected intra prediction mode.

Abstract translation: 一种设备包括被配置为从多个帧内预测模式中导出用于视频数据块的帧内预测的M个最可能模式（MPM）的一个或多个处理器。 解码表示MPM索引或非MPM索引是否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所选帧内预测模式的语法元素。 基于所指示的一个MPM索引或非MPM索引作为MPM索引，一个或多个处理器针对MPM索引的一个或多个上下文建模的存储体中的每一个，基于用于解码的帧内预测模式来选择 一个或多个相邻块，用于上下文建模的仓的上下文索引。 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：WO2014107366A3

公开(公告)日：2015-04-16

申请号：PCT/US2013077451

申请日：2013-12-23

Applicant: QUALCOMM INC

Inventor： CHEN JIANLE ,  SEREGIN VADIM ,  GUO LIWEI ,  KARCZEWICZ MARTA

IPC: H04N19/59

CPC classification number: H04N19/33 ,  H04N19/105 ,  H04N19/134 ,  H04N19/174 ,  H04N19/187 ,  H04N19/59

Abstract: An apparatus for coding video information may include a memory unit configured to store video information associated with a picture and a processor in communication with the memory unit configured to resample video information of a reference picture to obtain a resampled picture having a plurality of slices and a different picture size than a picture to be encoded. Further, the processor may determine slice definitions for slices in the resampled picture. The slices of the resampled picture may correspond to slices of the reference picture. The processor may determine, based on the slice definitions, whether a slice of the resampled picture satisfies one or more slice definition rules. In response to determining that the slice of the resampled picture does not satisfy at least one slice definition rule, the processor can modify the slice definition for the slice so as to satisfy the slice definition rule.

Abstract translation: 用于对视频信息进行编码的装置可以包括：存储单元，被配置为存储与图像相关联的视频信息;处理器，与所述存储器单元进行通信，所述存储器单元被配置为对参考图像的视频信息进行重新采样，以获得具有多个切片的再采样图像， 与要编码的图片不同的图片大小。 此外，处理器可以确定重采样图像中的切片的切片定义。 重采样图像的切片可以对应于参考图片的切片。 处理器可以基于切片定义来确定重采样图像的切片是否满足一个或多个切片定义规则。 响应于确定重采样图像的切片不满足至少一个切片定义规则，处理器可以修改切片的切片定义以满足切片定义规则。

公开(公告)号：WO2015009629A2

公开(公告)日：2015-01-22

申请号：PCT/US2014046546

申请日：2014-07-14

Applicant: QUALCOMM INC

Inventor： RAPAKA KRISHNAKANTH ,  SEREGIN VADIM ,  CHEN JIANLE ,  WANG YE-KUI ,  KARCZEWICZ MARTA

IPC: H04N19/187

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/187 ,  H04N19/33 ,  H04N19/70

Abstract: An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a current layer and an enhancement layer, the current layer having a current picture. The processor is configured to determine whether the current layer may be coded using information from the enhancement layer, determine whether the enhancement layer has an enhancement layer picture corresponding to the current picture, and in response to determining that the current layer may be coded using information from the enhancement layer and that the enhancement layer has an enhancement layer picture corresponding to the current picture, code the current picture based on the enhancement layer picture. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编码的装置包括与存储器单元通信的存储器单元和处理器。 存储器单元被配置为存储与当前层和增强层相关联的视频信息，当前层具有当前图像。 处理器被配置为确定是否可以使用来自增强层的信息来编码当前层，确定增强层是否具有与当前图像对应的增强层图像，并且响应于确定当前层可以使用信息进行编码 并且增强层具有与当前画面相对应的增强层画面，基于增强层画面对当前画面进行编码。 处理器可以对视频信息进行编码或解码。

公开(公告)号：WO2014150864A2

公开(公告)日：2014-09-25

申请号：PCT/US2014024423

申请日：2014-03-12

Applicant: QUALCOMM INC

Inventor： GUO LIWEI ,  CHEN JIANLE ,  LI XIANG ,  RAPAKA KRISHNAKANTH ,  PU WEI ,  KARCZEWICZ MARTA

IPC: H04N19/187

CPC classification number: H04N19/439 ,  H04N19/117 ,  H04N19/132 ,  H04N19/187 ,  H04N19/33 ,  H04N19/34 ,  H04N19/46 ,  H04N19/59

Abstract: An apparatus configured to code video information comprises a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a reference layer (RL) and an enhancement layer (EL). The EL comprises an EL video unit and the RL comprises an RL video unit corresponding to the EL video unit. The processor is configured to perform upsampling and bit-depth conversion on pixel information of the RL video unit in a single combined process to determine predicted pixel information of the EL video unit, and determine the EL video unit using the predicted pixel information.

Abstract translation: 配置成对视频信息进行编码的装置包括存储器单元和与存储器单元通信的处理器。 存储器单元被配置为存储与参考层（RL）和增强层（EL）相关联的视频信息。 EL包括EL视频单元，并且RL包括对应于EL视频单元的RL视频单元。 处理器被配置为在单个组合处理中对RL视频单元的像素信息执行上采样和比特深度转换以确定EL视频单元的预测像素信息，并且使用预测像素信息来确定EL视频单元。

公开(公告)号：WO2013106674A3

公开(公告)日：2014-03-20

申请号：PCT/US2013021182

申请日：2013-01-11

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA ,  CHIEN WEI-JUNG ,  CHEN JIANLE

CPC classification number: H04N19/00072 ,  H04N19/129 ,  H04N19/13 ,  H04N19/18

Abstract: In an example, aspects of this disclosure relate to a process for video coding that includes determining that a set of support for selecting a context model to code a current significant coefficient flag of a transform coefficient of a block of video data includes at least one significant coefficient flag that is not available. The process also includes, based on the determination, modifying the set of support, and calculating a context for the current significant coefficient flag using the modified set of support. The process also includes applying context-adaptive binary arithmetic coding (CABAC) to code the current significant coefficient flag based on the calculated context.

Abstract translation: 在一个示例中，本公开的方面涉及用于视频编码的过程，其包括确定用于选择上下文模型的一组支持以编码视频数据块的变换系数的当前有效系数标志的方法包括至少一个有效值 系数标志不可用。 该过程还包括基于确定修改支持集合，以及使用修改的支持集合来计算当前重要系数标志的上下文。 该过程还包括应用上下文自适应二进制算术编码（CABAC）来基于所计算的上下文对当前有效系数标志进行编码。