公开(公告)号：WO2015138943A2

公开(公告)日：2015-09-17

申请号：PCT/US2015020514

申请日：2015-03-13

Applicant: QUALCOMM INC

Inventor： ZHANG LI ,  CHEN JIANLE ,  KARCZEWICZ MARTA ,  SOLE ROJALS JOEL ,  KIM WOO-SHIK

IPC: H04N19/176

CPC classification number: H04N19/126 ,  H04N19/102 ,  H04N19/103 ,  H04N19/11 ,  H04N19/12 ,  H04N19/134 ,  H04N19/136 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/186 ,  H04N19/196 ,  H04N19/33 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70

Abstract: In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine whether to use color-space conversion for a coding unit and set a value of a syntax element of the coding unit to indicate the use of color-space conversion. The video coder may apply a color-space transform process in encoding the coding unit. The video coder may decode the syntax element of the coding unit. The video coder may determine whether a value of the syntax element indicates that the coding unit was encoded using color-space conversion. The video coder may apply a color-space inverse transform process in decoding the coding unit in response to determining that the syntax element indicates that the coding unit was coded using color-space conversion.

Abstract translation: 一般来说，本发明描述用于使用色彩空间转换过程来译码视频块的技术。 诸如视频编码器或视频解码器的视频译码器可确定是否对编码单元使用色彩空间转换且将编码单元的语法元素的值设定为指示使用色彩空间转换。 视频译码器可在编码单元中应用色彩空间变换过程。 视频译码器可解码译码单元的语法元素。 视频译码器可确定语法元素的值是否指示编码单元是使用色彩空间转换来编码的。 视频译码器可响应于确定语法元素指示编码单元是使用色彩空间转换来译码而将解码编码单元应用色彩空间逆变换过程。

公开(公告)号：WO2014105818A3

公开(公告)日：2015-09-11

申请号：PCT/US2013077473

申请日：2013-12-23

Applicant: QUALCOMM INC

Inventor： VAN DER AUWERA GEERT ,  KARCZEWICZ MARTA

IPC: H04N19/30 ,  H04N19/103 ,  H04N19/136 ,  H04N19/182 ,  H04N19/186 ,  H04N19/187 ,  H04N19/196 ,  H04N19/50

CPC classification number: H04N19/103 ,  H04N19/136 ,  H04N19/182 ,  H04N19/187 ,  H04N19/196 ,  H04N19/33 ,  H04N19/50

Abstract: An apparatus for coding video data according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores video data. The video data may include a base layer comprising samples with a lower bit depth and an enhancement layer comprising samples with a higher bit depth. The processor predicts the values of samples in the enhancement layer based on the values of samples in the base layer. The prediction performed by the processor includes applying a preliminary mapping to the base layer samples to obtain preliminary predictions, and then applying adaptive adjustments to the preliminary predictions to obtain refined predictions. Parameters used for the adaptive adjustments may depend on the values and distribution of base layer samples. The processor may encode or decode the video data.

Abstract translation: 根据某些方面的用于编码视频数据的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储视频数据。 视频数据可以包括包括具有较低位深度的样本的基本层和包括具有较高位深度的样本的增强层。 处理器基于基本层中的样本的值来预测增强层中的样本的值。 由处理器执行的预测包括将初步映射应用于基本层样本以获得初步预测，然后对初步预测应用适应性调整以获得精细预测。 用于自适应调整的参数可能取决于基层样本的值和分布。 处理器可以对视频数据进行编码或解码。

公开(公告)号：WO2014205339A3

公开(公告)日：2015-02-26

申请号：PCT/US2014043397

申请日：2014-06-20

Applicant: QUALCOMM INC

Inventor： GUO LIWEI ,  PANG CHAO ,  KIM WOO-SHIK ,  PU WEI ,  SOLE ROJALS JOEL ,  JOSHI RAJAN LAXMAN ,  KARCZEWICZ MARTA

IPC: H04N19/463 ,  H04N19/593

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/154 ,  H04N19/176 ,  H04N19/186 ,  H04N19/513 ,  H04N19/523 ,  H04N19/55 ,  H04N19/563 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82

Abstract: Techniques coding video data, including a mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture, may include determining a predictive block of video data for the current block of video data, wherein the predictive block of video data is a reconstructed block of video data within the same picture as the current block of video data. A two-dimensional vector, which may be used by a video coder to identify the predictive block of video data, includes a horizontal displacement component and a vertical displacement component relative to the current block of video data. The mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture may be referred to as Intra Block Copy or Intra Motion Compensation.

Abstract translation: 编码视频数据的技术，包括用于从同一图像内的视频数据的预测块对视频数据块进行帧内预测的模式，可以包括确定用于当前视频数据块的视频数据的预测块，其中视频预测块 数据是与当前视频数据块相同的图像内的视频数据的重建块。 可以由视频编码器使用以识别视频数据的预测块的二维向量包括相对于当前视频数据块的水平位移分量和垂直位移分量。 用于对来自同一图像内的视频数据的预测块的视频数据块进行帧内预测的模式可以被称为帧内复制或帧内补偿。

公开(公告)号：WO2014153343A3

公开(公告)日：2015-02-19

申请号：PCT/US2014031039

申请日：2014-03-18

Applicant: QUALCOMM INC

Inventor： THIRUMALAI VIJAYARAGHAVAN ,  ZHANG LI ,  CHEN YING ,  KARCZEWICZ MARTA

IPC: H04N19/597

CPC classification number: H04N13/0048 ,  H04N19/597

Abstract: A video coder can be configured to perform texture first coding for a first texture view, a first depth view, a second texture view, and a second depth view; for a macroblock of the second texture view, locate a depth block of the first depth view that corresponds to the macroblock; based on at least one depth value of the depth block, derive a disparity vector for the macroblock; code a first sub-block of the macroblock based on the derived disparity vector; and, code a second sub-block of the macroblock based on the derived disparity vector.

Abstract translation: 视频编码器可以被配置为对第一纹理视图，第一深度视图，第二纹理视图和第二深度视图执行纹理第一编码; 对于第二纹理视图的宏块，定位与宏块对应的第一深度视图的深度块; 基于所述深度块的至少一个深度值，导出所述宏块的视差向量; 基于导出的视差矢量对宏块的第一子块进行编码; 并且基于导出的视差矢量对该宏块的第二子块进行编码。

公开(公告)号：WO2013192164A3

公开(公告)日：2014-12-04

申请号：PCT/US2013046289

申请日：2013-06-18

Applicant: QUALCOMM INC

Inventor： JOSHI RAJAN LAXMAN ,  VAN DER AUWERA GEERT ,  KARCZEWICZ MARTA

IPC: H04N19/82 ,  H04N19/70

CPC classification number: H04N19/85 ,  H04N19/00903 ,  H04N19/127 ,  H04N19/162 ,  H04N19/176 ,  H04N19/70 ,  H04N19/82

Abstract: Techniques described herein are related to harmonizing the signaling of coding modes and filtering in video coding. In one example, a method of decoding video data is provided that includes decoding a first syntax element to determine whether PCM coding mode is used for one or more video blocks, wherein the PCM coding mode refers to a mode that codes pixel values as PCM samples. The method further includes decoding a second syntax element to determine whether in-loop filtering is applied to the one or more video blocks. Responsive to the first syntax element indicating that the PCM coding mode is used, the method further includes applying in-loop filtering to the one or more video blocks based at least in part on the second syntax element and decoding the one or more video blocks based at least in part on the first and second syntax elements.

Abstract translation: 本文描述的技术涉及协调编码模式的信令和视频编码中的滤波。 在一个示例中，提供了解码视频数据的方法，其包括对第一语法元素进行解码以确定PCM编码模式是否用于一个或多个视频块，其中PCM编码模式是将像素值编码为PCM样本的模式 。 该方法还包括解码第二语法元素以确定是否将一个或多个视频块应用于环路滤波。 响应于指示使用PCM编码模式的第一语法元素，该方法还包括至少部分地基于第二语法元素对一个或多个视频块应用循环过滤，并且基于一个或多个视频块进行解码 至少部分地基于第一和第二语法元素。

公开(公告)号：WO2013106739A3

公开(公告)日：2014-03-20

申请号：PCT/US2013021278

申请日：2013-01-11

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

CPC classification number: H04N19/119 ,  H03M7/4018 ,  H04N19/13 ,  H04N19/18 ,  H04N19/91

Abstract: In one example, a device for coding video data includes a video coder configured to determine values for coded sub-block flags of one or more neighboring sub-blocks to a current sub-block, determine a context for coding a transform coefficient of the current sub-block based on the values for the coded sub-block flags, and entropy code the transform coefficient using the determined context.

Abstract translation: 在一个示例中，用于编码视频数据的设备包括视频编码器，被配置为将当前子块的一个或多个相邻子块的编码子块标志的值确定为当前子块，确定用于编码当前的变换系数的上下文 基于编码子块标志的值的子块，并且使用所确定的上下文熵代码变换系数。

公开(公告)号：WO2013106729A3

公开(公告)日：2014-03-20

申请号：PCT/US2013021261

申请日：2013-01-11

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

IPC: H04N19/00

CPC classification number: H04N19/119 ,  H03M7/4018 ,  H04N19/13 ,  H04N19/18 ,  H04N19/91

Abstract: In one example, a device for coding video data includes a video coder configured to determine whether a transform coefficient of a video block is a DC transform coefficient, when the transform coefficient is determined to be the DC transform coefficient of the video block, determine a context for coding the transform coefficient based on the transform coefficient being the DC transform coefficient without regard for a size of the video block, and entropy code the transform coefficient using the determined context.

Abstract translation: 在一个示例中，用于编码视频数据的设备包括视频编码器，被配置为当变换系数被确定为视频块的DC变换系数时，确定视频块的变换系数是否是DC变换系数，确定 用于基于作为DC变换系数的变换系数对变换系数进行编码的上下文，而不考虑视频块的大小，以及使用所确定的上下文对变换系数进行熵编码。

公开(公告)号：WO2013184954A2

公开(公告)日：2013-12-12

申请号：PCT/US2013044576

申请日：2013-06-06

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  TU CHENGJIE ,  CHEN JIANLE ,  KARCZEWICZ MARTA

IPC: H04N5/92

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33

Abstract: In one embodiment, a video coder for coding video data includes a processor and a memory. The processor selects a filter set from a multiple filter sets for upsampling reference layer video data based at least on a prediction operation mode for enhanced layer video data and upsamples the reference layer video data using the selected filter set. Some of the multiple filter sets have some different filter characteristics from one another, and the upsampled reference layer video data has the same spatial resolution as the enhanced layer video data. The processor further codes the enhanced layer video data based at least on the upsampled reference layer video data and the prediction operation mode. The memory stores the upsampled reference layer video data.

Abstract translation: 在一个实施例中，用于编码视频数据的视频编码器包括处理器和存储器。 处理器至少基于用于增强层视频数据的预测操作模式从多个滤波器组中选择用于上采样参考层视频数据的滤波器组，并使用所选择的滤波器组对参考层视频数据进行上采样。 多个滤波器组中的一些具有彼此具有一些不同的滤波器特性，并且上采样的参考层视频数据具有与增强层视频数据相同的空间分辨率。 处理器至少基于上采样的参考层视频数据和预测操作模式来对增强层视频数据进行编码。 存储器存储上采样的参考层视频数据。

公开(公告)号：WO2013112729A3

公开(公告)日：2013-11-28

申请号：PCT/US2013022979

申请日：2013-01-24

Applicant: QUALCOMM INC

Inventor： WANG XIANGLIN ,  SEREGIN VADIM ,  CHEN JIANLE ,  KARCZEWICZ MARTA

IPC: H04N7/36 ,  H04N7/26 ,  H04N7/50

CPC classification number: H04N19/513 ,  H04N19/00684 ,  H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/194 ,  H04N19/436 ,  H04N19/52 ,  H04N19/61

Abstract: An example video encoder is configured to receive an indication of merge mode coding of a block within a parallel motion estimation region (PMER), generate a merge mode candidate list comprising one or more spatial neighbor motion vector (MV) candidates and one or more temporal motion vector prediction (TMVP) candidates, wherein motion information of at least one of the spatial neighbor MV candidates is known to be unavailable during coding of the block at an encoder, determine an index value identifying, within the merge mode candidate list, one of the TMVP candidates or the spatial neighbor MV candidates for which motion information is available during coding of the particular block, and merge mode code the block using the identified MV candidate.

Abstract translation: 示例性视频编码器被配置为接收在并行运动估计区域（PMER）内的块的合并模式编码的指示，生成包括一个或多个空间相邻运动向量（MV）候选的合并模式候选列表和一个或多个时间 运动矢量预测（TMVP）候选，其中已知空间相邻MV候选中的至少一个的运动信息在编码器处的块的编码期间不可用，确定在合并模式候选列表中识别在 在特定块的编码期间运动信息可用的TMVP候选或空间相邻MV候选，并且合并模式使用所识别的MV候选对该块进行编码。

公开(公告)号：WO2013106336A3

公开(公告)日：2013-11-14

申请号：PCT/US2013020685

申请日：2013-01-08

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  WANG XIANGLIN ,  CHEN JIANLE ,  KARCZEWICZ MARTA

IPC: H04N7/26

CPC classification number: H04N19/00587 ,  H04N19/503 ,  H04N19/52 ,  H04N19/61

Abstract: A video coding device configured according to some aspects of this disclosure includes a memory configured to store an initial list of motion vector candidates and a temporal motion vector predictor (TMVP). The video coding device also includes a processor in communication with the memory. The processor is configured to obtain a merge candidate list size value (N) and identify motion vector candidates to include in a merge candidate list having a list size equal to the merge candidate list size value. The merge candidate list may be a merge motion vector (MV) candidate list or a motion vector predictor (MVP) candidate list (also known as an AM VP candidate list). The processor generates the merge candidate list such that the merge candidate list includes the TMVP, regardless of the list size.

Abstract translation: 根据本发明的一些方面配置的视频译码装置包括经配置以存储运动向量候选者的初始列表和时间运动向量预测器（TMVP）的存储器。 视频编码设备还包括与存储器通信的处理器。 处理器被配置为获得合并候选列表大小值（N）并识别要包括在具有与合并候选列表大小值相等的列表大小的合并候选列表中的运动矢量候选。 合并候选者列表可以是合并运动向量（MV）候选者列表或运动向量预测器（MVP）候选者列表（也被称为AM VP候选者列表）。 处理器生成合并候选者列表，使得合并候选者列表包括TMVP，而与列表大小无关。