公开(公告)号：US20150264400A1

公开(公告)日：2015-09-17

申请号：US14216369

申请日：2014-03-17

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/60 ,  H04N19/42

CPC classification number: H04N19/60 ,  H04N19/42

Abstract: Systems and methods for low complexity forward transforms using mesh-based calculations are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory configured to store video information. The video encoder further comprises a processor in communication with the memory. The processor is configured to decompose a transform into multiple transform stages. The processor is further configured to transform the video information using the multiple stages to determine a transform stage output at each transform stage. The processor is further configured to constrain the transform stage output at each transform stage to a predetermined bit depth. The processor is further configured to perform operations on the constrained transform output of a last stage of the multiple stages, wherein the operations are only available for use with data having the predetermined bit depth.

Abstract translation: 本文描述了使用基于网格的计算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信息的存储器。 视频编码器还包括与存储器通信的处理器。 处理器被配置为将变换分解成多个变换阶段。 处理器还被配置为使用多级转换视频信息，以确定在每个变换阶段的变换级输出。 处理器还被配置为将每个变换级的变换级输出约束到预定位深度。 处理器还被配置为对多级的最后阶段的约束变换输出执行操作，其中该操作仅可用于具有预定位深度的数据。

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：US20140092983A1

公开(公告)日：2014-04-03

申请号：US14038524

申请日：2013-09-26

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman JOSHI ,  Liwei GUO ,  Marta KARCZEWICZ

IPC: H04N7/30

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/186 ,  H04N19/645 ,  H04N19/70 ,  H04N19/96

Abstract: Systems, methods, and devices for video coding that may obtain a rectangular chroma block having first and second square sub-blocks are disclosed. These systems, methods, and devices may also decode a first coded block flag (CBF) for the first square sub-block to indicate whether the first square sub-block includes at least one nonzero transform coefficient. These systems, methods, and devices may also decode a second CBF for the second square sub-block to indicate whether the second square sub-block includes at least one nonzero transform coefficient and not decoding a CBF for the rectangular chroma block.

Abstract translation: 公开了可获得具有第一和第二平方子块的矩形色度块的用于视频编码的系统，方法和装置。 这些系统，方法和设备还可以解码用于第一平方子块的第一编码块标志（CBF），以指示第一平方子块是否包括至少一个非零变换系数。 这些系统，方法和设备还可以解码用于第二平方子块的第二CBF，以指示第二平方子块是否包括至少一个非零变换系数，并且不解码矩形色度块的CBF。

公开(公告)号：US20140064361A1

公开(公告)日：2014-03-06

申请号：US14014016

申请日：2013-08-29

Applicant: Qualcomm Incorporated

Inventor： Marta KARCZEWICZ ,  Liwei GUO ,  Joel SOLE ROJALS

IPC: H04N7/26

CPC classification number: H04N19/30 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/46

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 obtains residue block information based at least in part on video information associated with the reference layer and the enhancement layer. The processor determines an adjustment transform function based on a transform function associated with the video information. The processor determines a transform block based on the adjusted transform function and the residue block information.

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和对应的增强层相关联的视频信息。 处理器至少部分地基于与参考层和增强层相关联的视频信息获得残留块信息。 处理器基于与视频信息相关联的变换函数来确定调整变换功能。 处理器基于经调整的变换函数和残差块信息来确定变换块。

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。

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。

公开(公告)号：US20140003532A1

公开(公告)日：2014-01-02

申请号：US13929198

申请日：2013-06-27

Applicant: QUALCOMM Incorporated

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

IPC: H04N7/26

CPC classification number: H04N19/463 ,  H04N19/174 ,  H04N19/436 ,  H04N19/91

Abstract: The techniques of this disclosure allow for wavefront parallel processing of video data with limited synchronization points. In one example, a method of decoding video data comprises synchronizing decoding of a first plurality of video block rows at a beginning of each video block row in the first plurality of video block rows, decoding the first plurality of video block rows in parallel, wherein decoding does not include any synchronization between any subsequent video block in the first plurality of video block rows, and synchronizing decoding of a second plurality of video block rows at a beginning of each video block row in the second plurality of video block rows.

Abstract translation: 本公开的技术允许具有有限同步点的视频数据的波前并行处理。 在一个示例中，解码视频数据的方法包括在第一多个视频块行中的每个视频块行的开始处对第一多个视频块行进行同步解码，并行解码第一多个视频块行，其中 解码不包括第一多个视频块行中的任何后续视频块之间的任何同步，并且在第二多个视频块行中的每个视频块行的开始处同步第二多个视频块行的解码。