公开(公告)号：US20130272412A1

公开(公告)日：2013-10-17

申请号：US13861294

申请日：2013-04-11

Applicant: QUALCOMM INCORPORATED

Inventor： Vadim Seregin ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/34

CPC classification number: H04N19/176 ,  H04N19/52 ,  H04N19/593

Abstract: In one example, an apparatus for coding video data comprises a video coder configured to generate first and second lists of motion information candidates, respectively, for first and second video block using a common list construction process, wherein the common list construction process is common to at least a first motion information prediction mode and a second motion information prediction mode. The video coder is further configured to code the first video block using the first motion information prediction mode based on a first motion information candidate selected from the first list, and code the second video block using the second motion information prediction mode based on a second motion information candidate selected from the second list.

Abstract translation: 在一个示例中，用于编码视频数据的装置包括视频编码器，被配置为使用公共列表构造处理分别为第一和第二视频块生成运动信息候选的第一和第二列表，其中公共列表构造过程与 至少第一运动信息预测模式和第二运动信息预测模式。 视频编码器还被配置为基于从第一列表中选择的第一运动信息候选，使用第一运动信息预测模式对第一视频块进行编码，并且使用基于第二运动的第二运动信息预测模式对第二视频块进行编码 信息候选者从第二列表中选择。

公开(公告)号：US20130259141A1

公开(公告)日：2013-10-03

申请号：US13826124

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Geert Van der Auwera ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/134 ,  H04N19/14 ,  H04N19/174 ,  H04N19/186 ,  H04N19/82

Abstract: In one example, an apparatus for processing video data comprises a video coder configured to, for each of the one or more chrominance components, calculate a chrominance quantization parameter for a common edge between two blocks of video data based on a first luminance quantization parameter for the first block of video data, a second luminance quantization parameter for the second block of video data, and a chrominance quantization parameter offset value for the chrominance component. The video coder is further configured to determine a strength for a deblocking filter for the common edge based on the chrominance quantization parameter for the chrominance component, and apply the deblocking filter according to the determined strength to deblock the common edge.

Abstract translation: 在一个示例中，用于处理视频数据的设备包括：视频编码器，被配置为，对于所述一个或多个色度分量中的每一个，基于第一亮度量化参数计算两个视频数据块之间的共同边缘的色度量化参数， 视频数据的第一块，第二视频数据块的第二亮度量化参数，以及色度分量的色度量化参数偏移值。 视频编码器还被配置为基于用于色度分量的色度量化参数来确定用于公共边缘的去块滤波器的强度，并且根据确定的强度应用去块滤波器以解除公共边缘。

公开(公告)号：US20130188744A1

公开(公告)日：2013-07-25

申请号：US13744019

申请日：2013-01-17

Applicant: QUALCOMM INCORPORATED

Inventor： Geert Van der Auwera ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/85 ,  H04N19/117 ,  H04N19/186 ,  H04N19/82

Abstract: A video coding device is configured to obtain an array of sample values. The sample values may be formatted according to a 4:2:0, 4:2:2, or 4:4:4 chroma format. The video coding device determines whether to apply a first filter to rows of chroma sample values associated with defined horizontal edges within the array. The video coding device determines whether to apply a second filter to columns of chroma sample values associated with defined vertical edges. The horizontal and vertical edges may be separated by a number of chroma samples according to a deblocking grid.

Abstract translation: 视频编码装置被配置为获得样本值的数组。 样本值可以根据4：2：0,4：2：2或4：4：4色度格式进行格式化。 视频编码装置确定是否将第一滤波器应用于与阵列内的限定水平边缘相关联的色度采样值的行。 视频编码装置确定是否对与定义的垂直边缘相关联的色度样本值的列应用第二滤波器。 根据解块栅格，水平和垂直边缘可以被多个色度样本分开。

公开(公告)号：US20130188701A1

公开(公告)日：2013-07-25

申请号：US13744128

申请日：2013-01-17

Applicant: Qualcomm Incorporated

Inventor： Sanjeev Kumar ,  Hsiao-Chiang Chuang ,  Shu Xiao ,  Kai Wang ,  Vladan Andrijanic ,  Xianglin Wang ,  Wei-Jung Chien ,  Marta Karczewicz ,  Vadim Seregin

IPC: H04N7/26

CPC classification number: H04N19/50 ,  H04N19/11 ,  H04N19/156 ,  H04N19/174 ,  H04N19/436

Abstract: The techniques of this disclosure are generally related to parallel coding of video units that reside along rows or columns of blocks in largest coding units. For example, the techniques include removing intra-prediction dependencies between two video units in different rows or columns to allow for parallel coding of rows or columns of the video units.

Abstract translation: 本公开的技术通常涉及以最大编码单元沿着行或列的行驻留的视频单元的并行编码。 例如，这些技术包括去除不同行或列中的两个视频单元之间的帧内预测依赖性，以允许视频单元的行或列的并行编码。

公开(公告)号：US20130188700A1

公开(公告)日：2013-07-25

申请号：US13744087

申请日：2013-01-17

Applicant: QUALCOMM INCORPORATED

Inventor： Liwei Guo ,  Muhammed Zeyd Coban ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/50 ,  H03M7/4018 ,  H04N19/13 ,  H04N19/21 ,  H04N19/60 ,  H04N19/91

Abstract: Techniques for coding data, such as, e.g., video data, include coding a first syntax element, conforming to a particular type of syntax element, of a first slice of video data, conforming to a first slice type, using an initialization value set. The techniques further include coding a second syntax element, conforming to the same type of syntax element, of a second slice of video data, conforming to a second slice type, using the same initialization value set. In this example, the first slice type may be different from the second slice type. Also in this example, at least one of the first slice type and the second slice type may be a temporally predicted slice type. For example, the at least one of the first and second slice types may be a unidirectional inter-prediction (P) slice type, or a bi-directional inter-prediction (B) slice type.

Abstract translation: 用于编码数据（例如，视频数据）的技术包括使用初始化值集合来编码符合第一切片类型的第一片视频数据的符合特定类型的语法元素的第一语法元素。 所述技术还包括使用相同的初始化值集合来编码符合第二片类型的视频数据的第二片段的符合相同类型的语法元素的第二语法元素。 在该示例中，第一切片类型可以不同于第二切片类型。 同样在该示例中，第一切片类型和第二切片类型中的至少一个可以是时间预测的切片类型。 例如，第一和第二切片类型中的至少一个可以是单向帧间预测（P）切片类型或双向帧间预测（B）切片类型。

公开(公告)号：US20130170562A1

公开(公告)日：2013-07-04

申请号：US13727031

申请日：2012-12-26

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/117 ,  H04N19/14 ,  H04N19/17 ,  H04N19/82 ,  H04N19/86

Abstract: In one example, a video coding device is configured to decode four blocks of video data, wherein the four blocks are non-overlapping and share one common point such that four edge segments are formed by the four blocks, for each of the four edge segments, determine whether to deblock the respective edge segment based on a first analysis of at least one line of pixels that is perpendicular to the respective edge segment and that intersects the respective edge segment, for each of the four edge segments that was determined to be deblocked, determine whether to apply a strong filter or a weak filter to the respective edge segment based on a second analysis of the at least one line of pixels for the respective edge, and deblock the four edge segments based on the determinations.

Abstract translation: 在一个示例中，视频编码设备被配置为对四个视频数据块进行解码，其中四个块是不重叠的并且共享一个公共点，使得四个边缘段由四个块形成，四个边缘段中的每一个 基于对于被确定为被去块的四个边缘片段中的每一个，基于垂直于相应边缘片段并且与相应边缘片段相交的至少一行像素的第一次分析，确定是否去块相应的边缘片段 基于对于相应边缘的至少一行像素的第二分析，确定是否对相应边缘段应用强滤波器或弱滤波器，以及基于确定来解除四个边缘段。

公开(公告)号：US20130114730A1

公开(公告)日：2013-05-09

申请号：US13670167

申请日：2012-11-06

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Joel Sole Rojals ,  Xianglin Wang ,  Marta Karczewicz ,  Vadim Seregin

IPC: H04N7/30

CPC classification number: H04N19/70 ,  H04N19/12 ,  H04N19/129 ,  H04N19/156 ,  H04N19/196 ,  H04N19/463 ,  H04N19/625

Abstract: This disclosure describes techniques for coding significant coefficient information for a video block in a transform skip mode. The transform skip mode may provide a choice of a two-dimensional transform mode, a horizontal one-dimensional transform mode, a vertical one-dimensional transform mode, or a no transform mode. In other cases, the transform skip mode may provide a choice between a two-dimensional transform mode and a no transform mode. The techniques include selecting a transform skip mode for a video block, and coding significant coefficient information for the video block using a coding procedure defined based at least in part on the selected transform skip mode. Specifically, the techniques include using different coding procedures to code one or more of a position of a last non-zero coefficient and a significance map for the video block in the transform skip mode.

Abstract translation: 本公开描述了用于以变换跳过模式对视频块的有效系数信息进行编码的技术。 变换跳过模式可以提供二维变换模式，水平一维变换模式，垂直一维变换模式或无变换模式的选择。 在其他情况下，变换跳过模式可以提供二维变换模式和无变换模式之间的选择。 这些技术包括：选择用于视频块的变换跳过模式，以及使用至少部分地基于所选择的变换跳过模式定义的编码过程来编码视频块的有效系数信息。 具体地说，这些技术包括使用不同的编码程序对变换跳过模式中的视频块的最后非零系数的位置和重要性映射的一个或多个进行编码。

公开(公告)号：US20130114717A1

公开(公告)日：2013-05-09

申请号：US13669992

申请日：2012-11-06

Applicant: Qualcomm Incorporated

Inventor： Yunfei Zheng ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/26 ,  H04N7/36

CPC classification number: H04N19/52 ,  H04N19/109 ,  H04N19/119 ,  H04N19/147 ,  H04N19/154 ,  H04N19/176 ,  H04N19/46 ,  H04N19/96

Abstract: In generating a candidate list for inter prediction video coding, a video coder can perform pruning operations when adding spatial candidates and temporal candidates to a candidate list while not performing pruning operations when adding an artificially generated candidate to the candidate list. The artificially generated candidate can have motion information that is the same as motion information of a spatial candidate or temporal candidate already in the candidate list.

Abstract translation: 在生成帧间预测视频编码的候选列表时，视频编码器可以在向候选列表添加人为生成的候选者时，在不进行剪枝操作的情况下，向候选列表添加空格候选和时间候选，进行修剪操作。 人为生成的候选者可以具有与已经在候选列表中的空间候选或时间候选的运动信息相同的运动信息。

公开(公告)号：US20130114691A1

公开(公告)日：2013-05-09

申请号：US13665403

申请日：2012-10-31

Applicant: Qualcomm Incorporated

Inventor： Liwei Guo ,  Marta Karczewicz ,  Xianglin Wang

IPC: H04N7/26

CPC classification number: H03M7/4018 ,  H04N19/13 ,  H04N19/61

Abstract: In one example, an apparatus for context adaptive entropy coding a video unit comprises a coder configured to code a syntax element, wherein a first value of the syntax element indicates that one or more of a plurality of context states are initialized using an adaptive initialization mode for the video unit, and a second value of the syntax element indicates that each of the plurality of context states is initialized using a default initialization mode for the video unit. In some examples, when the syntax element has the first value, the coder is further configured to code a map that indicates which of the context states are initialized using the adaptive initialization mode, and to further code either an initial state value for those contexts, or information from which the initial state values of those adaptively initialized context may be derived.

Abstract translation: 在一个示例中，用于视频单元的上下文自适应熵编码的装置包括被配置为对语法元素进行编码的编码器，其中语法元素的第一值指示使用自适应初始化模式来初始化多个上下文状态中的一个或多个 并且所述语法元素的第二值指示使用所述视频单元的默认初始化模式来初始化所述多个上下文状态中的每一个。 在一些示例中，当语法元素具有第一值时，编码器还被配置为使用自适应初始化模式编码指示哪个上下文状态被初始化的映射，并且进一步对这些上下文的初始状态值进行编码， 或者可以导出这些自适应初始化上下文的初始状态值的信息。

公开(公告)号：US20130114675A1

公开(公告)日：2013-05-09

申请号：US13665467

申请日：2012-10-31

Applicant: Qualcomm Incorporated

Inventor： Liwei Guo ,  Xianglin Wang ,  Marta Karczewicz ,  Joel Sole Rojals

IPC: H04N7/26 ,  H03M7/00

CPC classification number: H03M7/4018 ,  H04N19/13

Abstract: In one example, an apparatus for context adaptive entropy coding may include a coder configured to determine one or more initialization parameters for a context adaptive entropy coding process based on one or more initialization parameter index values. The coder may be further configured to determine one or more initial context states for initializing one or more contexts of the context adaptive entropy coding process based on the initialization parameters. The coder may be still further configured to initialize the contexts based on the initial context states. In some examples, the initialization parameters may be included in one or more tables, wherein, to determine the initialization parameters, the coder may be configured to map the initialization parameter index values to the initialization parameters in the tables. Alternatively, the coder may be configured to calculate the initialization parameters using the initialization parameter index values and one or more formulas.

Abstract translation: 在一个示例中，用于上下文自适应熵编码的装置可以包括编码器，其被配置为基于一个或多个初始化参数索引值来确定用于上下文自适应熵编码处理的一个或多个初始化参数。 编码器还可以被配置为基于初始化参数确定用于初始化上下文自适应熵编码处理的一个或多个上下文的一个或多个初始上下文状态。 编码器还可以进一步配置为基于初始上下文状态来初始化上下文。 在一些示例中，初始化参数可以被包括在一个或多个表中，其中为了确定初始化参数，编码器可以被配置为将初始化参数索引值映射到表中的初始化参数。 或者，编码器可以被配置为使用初始化参数索引值和一个或多个公式来计算初始化参数。