公开(公告)号：US20140269939A1

公开(公告)日：2014-09-18

申请号：US14205006

申请日：2014-03-11

Applicant: QUALCOMM Incorporated

Inventor： Liwei GUO ,  Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA ,  Wei PU ,  Marta KARCZEWICZ

IPC: H04N19/597 ,  H04N19/117 ,  H04N19/136 ,  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: 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位深度转换，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：US20140010310A1

公开(公告)日：2014-01-09

申请号：US13934542

申请日：2013-07-03

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/36

CPC classification number: H04N19/51 ,  H04N19/30 ,  H04N19/52 ,  H04N19/523 ,  H04N19/59

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 difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding base layer of the video information. The processor determines pixel accuracy of motion predictor information, determines a motion vector based on the pixel accuracy of the motion predictor information, and determines a value of a video unit based at least in part on the motion vector.

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。 存储单元存储与视频信息的增强层和对应的基本层之间的差异导出的像素信息的差异视频层相关联的差分视频信息。 处理器确定运动预测器信息的像素精度，基于运动预测器信息的像素精度确定运动矢量，并且至少部分地基于运动矢量确定视频单元的值。

公开(公告)号：US20140010300A1

公开(公告)日：2014-01-09

申请号：US13935283

申请日：2013-07-03

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/30 ,  H04N19/105 ,  H04N19/147 ,  H04N19/33 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/85 ,  H04N19/86

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 difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding base layer of the video information. The processor determines a value of a video unit based on a reference video unit or spatial neighboring video unit within the difference video layer and applies a smoothing filter to the reference video unit or spatial neighboring video unit.

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。 存储单元存储与视频信息的增强层和对应的基本层之间的差异导出的像素信息的差异视频层相关联的差分视频信息。 处理器基于差分视频层内的参考视频单元或空间相邻视频单元来确定视频单元的值，并将平滑滤波器应用于参考视频单元或空间相邻视频单元。

公开(公告)号：US20150103904A1

公开(公告)日：2015-04-16

申请号：US14513089

申请日：2014-10-13

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Ye-Kui WANG ,  Jianle CHEN ,  Fnu HENDRY

IPC: H04N19/44

CPC classification number: H04N19/44 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

Abstract: Systems and methods for inter-layer reference picture set derivation based on sub-layer reference prediction dependency are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory configured to store one or more direct reference layer pictures of one or more current pictures in a sequence, wherein the one or more current pictures are associated with a current layer, the current layer being associated with the one or more direct reference layers. The video encoder further comprises a processor in communication with the memory unit. The memory unit is configured to set an indication associated with a current picture to indicate whether all of the one or more direct reference layer pictures of the current picture that are not restricted for use in inter-layer prediction are included in an inter-layer reference picture set associated with the current picture.

Abstract translation: 本文描述了基于子层参考预测依赖性的层间参考图像集导出的系统和方法。 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一个或多个当前图像的序列中的一个或多个直接参考图像图像的存储器，其中所述一个或多个当前图像与当前层相关联 当前层与该一个或多个直接参考层相关联。 视频编码器还包括与存储器单元通信的处理器。 存储器单元被配置为设置与当前图像相关联的指示，以指示是否将不限于在层间预测中使用的当前图片的一个或多个直接参考图像图片全部包括在层间参考中 与当前图片相关联的图片集。

公开(公告)号：US20150010051A1

公开(公告)日：2015-01-08

申请号：US14318230

申请日：2014-06-27

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Ying CHEN ,  Ye-Kui WANG ,  Krishnakanth RAPAKA ,  Fnu HENDRY

IPC: H04N19/105 ,  H04N19/196 ,  H04N19/187

CPC classification number: H04N19/105 ,  H04N19/174 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70

Abstract: A method of coding video data includes receiving one or more layers of video information. Each layer may include at least one picture. The method can include determining a number of active reference layer pictures associated with at least one picture of the one or more layers. The method can further include determining a number of direct reference layers associated with the at least one of the one or more layers. Based on the number of direct reference layers equaling the number of active reference layer pictures, the method can further include refraining from further signaling inter-layer reference picture information in any video slice associated with at least one of a video parameter set (VPS), a sequence parameter set (SPS), or a picture parameter set (PPS). Additionally or alternatively, based on the number of direct reference layers equaling the number of active reference layer pictures, the method can include adding to the inter-layer reference picture set all direct reference layer pictures for any video slice associated with at least one of a video parameter set (VPS), a sequence parameter set (SPS), or a picture parameter set (PPS).

Abstract translation: 一种编码视频数据的方法包括接收一层或多层视频信息。 每个层可以包括至少一个图片。 该方法可以包括确定与一个或多个层的至少一个图片相关联的多个活动参考图层图片。 该方法还可以包括确定与一个或多个层中的至少一个层相关联的多个直接参照层。 基于等于有效参考层图像数量的直接参考层的数量，该方法还可以包括在与视频参数集（VPS）中的至少一个相关联的任何视频片段中避免进一步的信令层间参考图像信息， 序列参数集（SPS）或图像参数集（PPS）。 附加地或替代地，基于等于有效参考层图像的数量的直接参考层的数量，该方法可以包括向层间参考图像集合添加与以下各项中的至少一个相关联的任何视频片段的所有直接参考图像图像： 视频参数集（VPS），序列参数集（SPS）或图像参数集（PPS）。

公开(公告)号：US20140301458A1

公开(公告)日：2014-10-09

申请号：US14243835

申请日：2014-04-02

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N19/31 ,  H04N19/187

CPC classification number: H04N19/31 ,  H04N19/187 ,  H04N19/70

Abstract: An apparatus configured to code (e.g., encode or decode) 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 video layer comprising one or more temporal sub-layers. The processor is configured to determine presence information for a coded video sequence in a bitstream, the presence information indicating whether said one or more temporal sub-layers of the video layer are present in the bitstream. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编码（例如，编码或解码）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包括一个或多个时间子层的视频层相关联的视频信息。 处理器被配置为确定比特流中的编码视频序列的存在信息，表示视频层的所述一个或多个时间子层是否存在于比特流中的存在信息。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140198846A1

公开(公告)日：2014-07-17

申请号：US14154077

申请日：2014-01-13

Applicant: QUALCOMM Incorporated

Inventor： Liwei GUO ,  Krishnakanth RAPAKA ,  Jianle CHEN ,  Xiang LI ,  Vadim SEREGIN ,  Marta KARCZEWICZ ,  Wei PU

IPC: H04N19/593 ,  H04N19/33

CPC classification number: H04N19/117 ,  H04N19/30 ,  H04N19/33 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61

Abstract: An apparatus configured to code (e.g., encode or decode) 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 base layer and an enhancement layer, the enhancement layer comprising an enhancement layer (EL) block and the base layer comprising a base layer (BL) block that is co-located with the enhancement layer block. The processor is configured to determine predicted pixel information of the EL block by applying a prediction function to pixel information of the BL block, and to determine the EL block using the predicted pixel information. The processor may encode or decode the video information.

Abstract translation: 被配置为对视频信息进行编码（例如，编码或解码）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基本层和增强层相关联的视频信息，所述增强层包括增强层（EL）块，并且所述基本层包括与增强层位于同一位置的基本层（BL）块 层块。 处理器被配置为通过对BL块的像素信息应用预测函数来确定EL块的预测像素信息，并且使用预测像素信息来确定EL块。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140072041A1

公开(公告)日：2014-03-13

申请号：US14019468

申请日：2013-09-05

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA

IPC: H04N7/32

CPC classification number: H04N19/46 ,  H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/30 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593

Abstract: An apparatus for coding video data according to certain aspects includes a memory and a processor in communication with the memory. The memory is configured to store video information, such as base layer video information and enhancement layer video information. The processor is configured to determine a value of a current video unit of enhancement layer video information based at least on a weighted inter-layer predictor and a weighted intra-layer predictor of at least one color component of the current video unit.

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。 存储器被配置为存储诸如基本层视频信息和增强层视频信息的视频信息。 处理器被配置为至少基于加权层间预测器和当前视频单元的至少一个颜色分量的加权层内预测器来确定增强层视频信息的当前视频单元的值。

公开(公告)号：US20140044178A1

公开(公告)日：2014-02-13

申请号：US13957841

申请日：2013-08-02

Applicant: QUALCOMM Incorporated

Inventor： Xiang LI ,  Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/32

CPC classification number: H04N19/50 ,  H04N19/105 ,  H04N19/149 ,  H04N19/172 ,  H04N19/30 ,  H04N19/34 ,  H04N19/597

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. The processor determines a value of a current video unit based on, at least in part, a reconstruction value associated with the reference layer and an adjusted difference prediction value. The adjusted difference prediction value is equal to a difference between a prediction of a current layer and a prediction of the reference layer multiplied by a weighting factor that is different from 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。 存储单元存储与参考层相关联的视频信息。 该处理器至少部分地基于与参考层相关联的重建值和调整差分预测值来确定当前视频单元的值。 调整差分预测值等于当前层的预测与参考层的预测乘以与1不同的加权因子之间的差。

公开(公告)号：US20140010279A1

公开(公告)日：2014-01-09

申请号：US13935383

申请日：2013-07-03

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth RAPAKA ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/103 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/187 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/593 ,  H04N19/70

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 difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding reconstructed base layer of the video information. The processor determines a Most Probable Mode (MPM) list associated with the difference video layer based on the characteristics of the difference video layer, and determines a value of a current video unit based on the difference video layer and the MPM list.

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。 存储单元存储与从视频信息的增强层和对应的重建基础层之间的差导出的像素信息的差分视频层相关联的差分视频信息。 处理器基于差分视频层的特性确定与差分视频层相关联的最可能模式（MPM）列表，并且基于差分视频层和MPM列表确定当前视频单元的值。