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：US20130336394A1

公开(公告)日：2013-12-19

申请号：US13914387

申请日：2013-06-10

Applicant: QUALCOMM Incorporated

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

IPC: H04N7/26

CPC classification number: H04N19/39 ,  H04N19/105 ,  H04N19/187 ,  H04N19/30 ,  H04N19/44

Abstract: An apparatus for coding video data using a single-loop decoding approach may include a memory unit and a processor in communication with the memory unit. In an embodiment, the memory unit stores the video data, the video data including a base layer and an enhancement layer. The base layer includes a base layer block, a non-constrained INTRA mode block, and an INTER mode block. The base layer block includes a sub-block located at least partially within one of the non-constrained INTRA mode block or the INTER mode block. The enhancement layer includes an enhancement layer block located at a position in the enhancement layer corresponding to a position of the base layer block in the base layer. The processor approximates pixel values of the sub-block and determines, based at least in part on the approximated pixel values, pixel values of the enhancement layer block.

Abstract translation: 使用单循环解码方法对视频数据进行编码的装置可以包括与存储器单元通信的存储器单元和处理器。 在实施例中，存储单元存储视频数据，视频数据包括基本层和增强层。 基本层包括基本层块，非约束INTRA模式块和INTER模式块。 基层块包括至少部分地位于非约束INTRA模块或INTER模块之一内的子块。 增强层包括位于增强层中位于基层中的基层块的位置的增强层块。 处理器近似子块的像素值，并且至少部分地基于近似像素值确定增强层块的像素值。

公开(公告)号：US20130272424A1

公开(公告)日：2013-10-17

申请号：US13863160

申请日：2013-04-15

Applicant: QUALCOMM INCORPORATED

Inventor： Joel SOLE ROJALS ,  Jianle CHEN ,  Wei-Jung CHIEN ,  Marta KARCZEWICZ

IPC: H04N7/50

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/18 ,  H04N19/467 ,  H04N19/48

Abstract: This disclosure proposes techniques for encoding and decoding transform coefficients in a video coding process. In particular, this disclosure proposes techniques determining whether or not to apply a sign data hiding process for a group of transform coefficients, and techniques for applying the sign data hiding process. In one example, this disclosure describes a method for decoding video data comprising determining a block of transform coefficients, determining whether to perform a sign data hiding process for at least one transform coefficient in the block of transform coefficients based on a single variable compared to a threshold, and decoding sign information for the block based on the determination of whether to perform the sign data hiding process.

Abstract translation: 本公开提出了在视频编码处理中对变换系数进行编码和解码的技术。 具体地，本公开提出了确定是否对一组变换系数应用符号数据隐藏处理的技术以及用于应用符号数据隐藏处理的技术。 在一个示例中，本公开描述了一种用于对视频数据进行解码的方法，包括：确定变换系数块，确定是否对变换系数块中的至少一个变换系数执行符号数据隐藏处理，基于与 基于是否执行符号数据隐藏处理的确定，对块的阈值和解码符号信息。

公开(公告)号：US20130272410A1

公开(公告)日：2013-10-17

申请号：US13860460

申请日：2013-04-10

Applicant: QUALCOMM INCORPORATED

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N7/36

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/42 ,  H04N19/513 ,  H04N19/52 ,  H04N19/523

Abstract: A video decoder determines, based at least in part on a size of a prediction unit (PU), whether to round either or both a horizontal or a vertical component of a motion vector of the PU from sub-pixel accuracy to integer-pixel accuracy. The video decoder generates, based at least in part on the motion vector, a predictive sample block for the PU and generates, based in part on the predictive sample block for the PU, a reconstructed sample block.

Abstract translation: 视频解码器至少部分地基于预测单元（PU）的大小来确定是否将PU的运动矢量的水平或垂直分量从子像素精度舍入到整数像素精度 。 视频解码器至少部分地基于运动矢量生成PU的预测采样块，并且部分地基于PU的预测采样块产生重建的采样块。

公开(公告)号：US20180376164A1

公开(公告)日：2018-12-27

申请号：US16011340

申请日：2018-06-18

Applicant: QUALCOMM Incorporated

Inventor： Kai ZHANG ,  Xiang LI ,  Jianle CHEN ,  Li ZHANG ,  Marta KARCZEWICZ

IPC: H04N19/56 ,  H04N19/176

Abstract: Techniques are directed to a device for decoding a current block of video data in a current coding picture. The device may include a memory configured to store video data. The device may also include a processor configured to generate a first prediction block for the current block of the video data in the current picture according to an intra-prediction mode and generate a second prediction block for the current block of the video data in the current picture the picture according to an inter-prediction mode. The processor may be configured to generate motion information propagated from the second prediction block of the picture to the first prediction block, and use the motion information to obtain a final prediction block, then generate a reconstructed block based on a combination of the final prediction block and a residual block.

公开(公告)号：US20150195561A1

公开(公告)日：2015-07-09

申请号：US14584473

申请日：2014-12-29

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/52 ,  H04N19/58

CPC classification number: H04N19/52 ,  H04N19/33 ,  H04N19/58 ,  H04N19/70

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 enhancement layer (EL) and a corresponding reference layer (RL). The processor is configured to: code an EL picture in a current access unit (AU), the EL coded using a first standard that is different from a second standard that is used to code the RL, wherein the coding of the EL picture is based on information associated with a RL picture in the current access unit, the information associated with the RL picture provided by an external means and consisting of: (1) decoded sample values of the RL picture; (2) a representation format of the RL picture; and (3) an indication of whether the RL picture is an instantaneous decoding refresh (IDR) 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。 存储器单元被配置为存储与增强层（EL）和对应的参考层（RL）相关联的视频信息。 处理器被配置为：对当前访问单元（AU）中的EL图像进行编码，EL使用与用于对RL编码的第二标准不同的第一标准进行编码，其中EL图像的编码基于 与当前访问单元中的RL图像相关联的信息，与由外部装置提供的RL图像相关联的信息，包括：（1）RL图像的解码样本值; （2）RL图像的表示格式; 和（3）RL图像是否是瞬时解码刷新（IDR）图像的指示。

公开(公告)号：US20140355676A1

公开(公告)日：2014-12-04

申请号：US14287797

申请日：2014-05-27

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN

IPC: H04N19/30

CPC classification number: H04N19/33 ,  H04N19/42 ,  H04N19/513

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 a reference layer picture and an enhancement layer picture. The processor is configured to: store video information associated with a reference layer picture and an enhancement layer picture; receive a scale factor that indicates a proportion of scaling between the reference layer picture and the enhancement layer picture in a first direction; determine, without performing a division operation, a rounding offset value using the scale factor; and determine a coordinate in the first direction of a first sample located in the reference layer picture that corresponds to a second sample located in the enhancement layer picture using the scale factor and the rounding offset value.

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参考层图像和增强层图像相关联的视频信息。 处理器被配置为：存储与参考层图像和增强层图像相关联的视频信息; 接收在第一方向上指示参考层图像和增强层图像之间的缩放比例的比例因子; 在不执行除法运算的情况下，使用比例因子确定舍入偏移值; 并且使用比例因子和舍入偏移值来确定位于参考层图像中的与位于增强层图像中的第二样本相对应的第一样本的第一方向上的坐标。

公开(公告)号：US20140294063A1

公开(公告)日：2014-10-02

申请号：US14228031

申请日：2014-03-27

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA ,  Ye-Kui WANG ,  Marta KARCZEWICZ

IPC: H04N19/105 ,  H04N19/30 ,  H04N19/503 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/30 ,  H04N19/33 ,  H04N19/46 ,  H04N19/503 ,  H04N19/593 ,  H04N19/70

Abstract: In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory unit configured to store reference layer pictures associated with a reference layer, an enhancement layer, or both. The apparatus further comprises a processor operationally coupled to the memory unit. In one embodiment, the processor is configured to restrict usage of at most one reference layer pictures that has a different spatial resolution than a current picture as an inter-layer reference picture, and predict the current picture using inter-layer prediction and the inter-layer reference picture.

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参考层，增强层或两者相关联的参考层图像的存储单元。 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，处理器被配置为将具有与当前图像不同的空间分辨率的至多一个参考层图像的使用限制为层间参考图像，并且使用层间预测和帧间预测来预测当前图像， 层参考图片。

公开(公告)号：US20140247879A1

公开(公告)日：2014-09-04

申请号：US14191311

申请日：2014-02-26

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Liwei GUO ,  Jianle CHEN ,  Krishnakanth RAPAKA

IPC: H04N19/30

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 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 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与基本层或增强层相关联的元素。

公开(公告)号：US20140098880A1

公开(公告)日：2014-04-10

申请号：US14035129

申请日：2013-09-24

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Xiang LI ,  Krishnakanth RAPAKA ,  Marta KARCZEWICZ ,  Ying CHEN

IPC: H04N7/36

CPC classification number: H04N19/159 ,  H04N19/176 ,  H04N19/33 ,  H04N19/463 ,  H04N19/517 ,  H04N19/52

Abstract: In one embodiment, an apparatus configured to code video data includes a processor and a memory unit. The memory unit stores video data associated with a first layer having a first spatial resolution and a second layer having a second spatial resolution. The video data associated with the first layer includes at least a first layer block and first layer prediction mode information associated with the first layer block, and the first layer block includes a plurality of sub-blocks where each sub-block is associated with respective prediction mode data of the first layer prediction mode information. The processor derives the predication mode data associated with one of the plurality of sub-blocks based at least on a selection rule, upsamples the derived prediction mode data and the first layer block, and associates the upsampled prediction mode data with each upsampled sub-block of the upsampled first layer block.

Abstract translation: 在一个实施例中，被配置为对视频数据进行编码的装置包括处理器和存储器单元。 存储单元存储与具有第一空间分辨率的第一层相关联的视频数据和具有第二空间分辨率的第二层。 与第一层相关联的视频数据至少包括与第一层块相关联的第一层块和第一层预测模式信息，并且第一层块包括多个子块，其中每个子块与相应的预测相关联 模式数据的第一层预测模式信息。 处理器至少基于选择规则导出与多个子块中的一个相关联的预测模式数据，对导出的预测模式数据和第一层块进行上采样，并将上采样的预测模式数据与每个上采样的子块相关联 的上采样第一层块。