公开(公告)号：US20130272380A1

公开(公告)日：2013-10-17

申请号：US13839855

申请日：2013-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： Wei-Jung CHIEN ,  Jianle CHEN ,  Muhammed Zeyd COBAN ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/103 ,  H04N19/107 ,  H04N19/13 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91 ,  H04N21/236

Abstract: A video encoding device is configured to generate a first group of syntax elements. Each syntax element in the first group indicates whether a prediction mode of a respective prediction unit (PU) is based on an index into a list of most probable modes. A second group of syntax elements is generated that correspond to respective syntax elements in the first group. The syntax elements in the second group identify either an index into the list of most probable modes or an intra-prediction mode. The first group of syntax elements are context adaptive binary arithmetic coding (CABAC) encoded, and the second group of syntax elements are bypass encoded. A video decoder is configured to receive the entropy encoded first and second groups of syntax elements. The video decoder CABAC decodes the first group of flags and bypass decodes the second group of flags.

Abstract translation: 视频编码设备被配置为生成第一组语法元素。 第一组中的每个语法元素指示相应预测单元（PU）的预测模式是否基于最可能模式列表中的索引。 生成与第一组中的相应语法元素对应的第二组语法元素。 第二组中的语法元素标识最可能模式列表中的索引或帧内预测模式。 第一组语法元素是上下文自适应二进制算术编码（CABAC）编码，第二组语法元素被旁路编码。 视频解码器被配置为接收熵编码的第一和第二组语法元素。 视频解码器CABAC对第一组标志进行解码，并对第二组标志进行旁路解码。

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：US20140328398A1

公开(公告)日：2014-11-06

申请号：US14266658

申请日：2014-04-30

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Xiang LI ,  Marta KARCZEWICZ ,  Vadim SEREGIN

IPC: H04N19/587 ,  H04N19/31

CPC classification number: H04N19/31 ,  H04N19/33 ,  H04N19/587

Abstract: An apparatus for coding video information according to certain aspects includes a memory and a processor. The memory unit is configured to store video information associated with an interlayer reference picture for a current picture to be coded. The processor is configured to: receive information relating to a plurality of interlayer reference offsets that are configured to define a region of a resampled version of the interlayer reference picture, wherein the region is used to generate a prediction of the current picture, and wherein the plurality of interlayer reference offsets include a left offset, a top offset, a right offset, and a bottom offset that are each specified relative to the current picture; determine based at least in part on the plurality of interlayer reference offsets whether to resample the interlayer reference picture; and in response to determining to resample the interlayer reference picture, resample the interlayer reference picture.

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和处理器。 存储单元被配置为存储与要编码的当前图像的中间层参考图片相关联的视频信息。 处理器被配置为：接收与被配置为定义中间参考图像的再采样版本的区域的多个层间参考偏移相关的信息，其中该区域用于生成当前图像的预测，并且其中 多个层间参考偏移包括相对于当前画面各自指定的左偏移，顶偏移，右偏移和底偏移; 至少部分地基于所述多个层间参考偏移确定是否重新采样所述中间层参考图像; 并且响应于确定重新采样层间参考图片，对层间参考图片进行重新采样。

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：US20140044180A1

公开(公告)日：2014-02-13

申请号：US13963982

申请日：2013-08-09

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Vadim SEREGIN

IPC: H04N7/36

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

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 enhancement layer and base layer video information and a completed merge candidate list. The processor is in communication with the memory and is configured to create the completed merge candidate list associated with the enhancement layer video information. The processor is further configured to add base layer motion vector information as a candidate into the completed candidate list after the completed merge candidate list has been created to create a final candidate 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。 存储单元存储增强层和基本层视频信息以及完成的合并候选列表。 处理器与存储器通信，并被配置为创建与增强层视频信息相关联的完成的合并候选列表。 处理器还被配置为在已经创建完成的合并候选列表以创建最终候选列表之后，将基本层运动矢量信息作为候选者添加到完成的候选列表中。

公开(公告)号：US20140044179A1

公开(公告)日：2014-02-13

申请号：US13958262

申请日：2013-08-02

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/36

CPC classification number: H04N19/51 ,  H04N19/30 ,  H04N19/46 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  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 of a reference layer and an enhancement layer. The processor determines a value of a current video unit of the enhancement layer based on, at least in part, explicit hypotheses and implicit hypotheses calculated from movement information from the reference layer.

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。 存储单元存储参考层和增强层的视频信息。 至少部分地基于来自参考层的运动信息计算的显式假设和隐含假设，处理器确定增强层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。