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21. 发明申请

WO2013039908A2 NON-SQUARE TRANSFORM UNITS AND PREDICTION UNITS IN VIDEO CODING 审中-公开
标题翻译：视频编码中的非方形变换单元和预测单元
公开(公告)号：WO2013039908A2
公开(公告)日：2013-03-21
申请号：PCT/US2012/054654
申请日：2012-09-11
申请人： QUALCOMM Incorporated , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
发明人： WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
IPC分类号： H04N7/26 , H04N7/34 , H04N7/50
CPC分类号： H04N19/61 , H04N19/11 , H04N19/122 , H04N19/157 , H04N19/176 , H04N19/593
摘要： This disclosure proposes techniques for transform partitioning in an intra-prediction video coding process. In one example, for a given intra-predicted block, a reduced number of transform unit partition options is allowed, based on certain conditions. In another example, transform units are decoupled from prediction units for intra-predicted block. For a given prediction unit, transforms of different sizes and shapes from the prediction unit may be applied. In another example, a reduced number of intra-prediction modes are allowed for a prediction unit having a non-square shape.
摘要翻译：本公开提出了用于帧内预测视频编码过程中的变换划分的技术。在一个示例中，对于给定帧内预测块，基于特定条件允许减少数量的变换单元分割选项。在另一个例子中，变换单元与帧内预测块的预测单元分离。对于给定的预测单元，可以应用来自预测单元的不同尺寸和形状的变换。在另一个例子中，对于具有非正方形形状的预测单元，允许减少数量的帧内预测模式。

22. 发明申请

WO2013009845A2 CODING SYNTAX ELEMENTS USING VLC CODEWORDS 审中-公开
标题翻译：使用VLC编码的编码语音元素
公开(公告)号：WO2013009845A2
公开(公告)日：2013-01-17
申请号：PCT/US2012/046218
申请日：2012-07-11
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , GUO, Liwei , WANG, Xianglin
发明人： KARCZEWICZ, Marta , GUO, Liwei , WANG, Xianglin
IPC分类号： G06T1/20
CPC分类号： H04N19/91
摘要： This disclosure describes techniques for coding transform coefficients for a block of video data. According to these techniques, a video coder (a video encoder or video decoder) stores a first VLC table array selection table in memory, and an indication of at least one difference between the first VLC table array selection table and a second VLC table array selection table. The video coder reconstructs at least one entry of the second VLC table array selection table based on the first VLC table array selection table using the stored indication of the difference between the first VLC table array selection table and a second VLC table array selection table. The video coder uses the reconstructed at least one entry of the second VLC table array selection table to code at least one block of video data.
摘要翻译：本公开描述了用于编码视频数据块的变换系数的技术。根据这些技术，视频编码器（视频编码器或视频解码器）将第一VLC表阵列选择表存储在存储器中，并且指示第一VLC表阵列选择表和第二VLC表阵列选择之间的至少一个差异表。视频编码器使用存储的第一VLC表阵列选择表和第二VLC表阵列选择表之间的差的指示，基于第一VLC表阵列选择表，重建第二VLC表阵列选择表的至少一个条目。视频编码器使用重构的第二VLC表阵列选择表的至少一个条目来编码至少一个视频数据块。

23. 发明申请

WO2013003747A1 SIGNALING SYNTAX ELEMENTS FOR TRANSFORM COEFFICIENTS FOR SUB-SETS OF A LEAF-LEVEL CODING UNIT 审中-公开
标题翻译：用于叶片编码单元子集的变换系数的信号语音元素
公开(公告)号：WO2013003747A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/044990
申请日：2012-06-29
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , WANG, Xianglin , GUO, Liwei
发明人： KARCZEWICZ, Marta , WANG, Xianglin , GUO, Liwei
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/14 , H04N19/129 , H04N19/132 , H04N19/46 , H04N19/61 , H04N19/70
摘要： This disclosure describes techniques for coding transform coefficients for a block of video data. According to these techniques, a video encoder divides a leaf-level unit of video data into a plurality of transform coefficient sub-sets. The video encoder generates, for a sub-set of the plurality of transform coefficient sub-sets, a syntax element that indicates whether or not the sub-set includes any non-zero coefficients. In some examples, the video encoder may selectively determine whether to generate the syntax element for each sub-set. A decoder may read an entropy encoded bit stream that includes the syntax element, and determine whether to decode the sub-set based on the syntax element.
摘要翻译：本公开描述了用于编码视频数据块的变换系数的技术。根据这些技术，视频编码器将视频数据的叶级单元划分为多个变换系数子集。视频编码器针对多个变换系数子集的子集生成指示子集是否包括任何非零系数的语法元素。在一些示例中，视频编码器可以选择性地确定是否为每个子集生成语法元素。解码器可以读取包括语法元素的熵编码比特流，并且基于语法元素确定是否解码子集。

24. 发明申请

WO2013003466A1 CODING SYNTAX ELEMENTS USING VLC CODEWORDS 审中-公开
标题翻译：使用VLC编码的编码语音元素
公开(公告)号：WO2013003466A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/044408
申请日：2012-06-27
申请人： QUALCOMM INCORPORATED , GUO, Liwei , SOLE ROJALS, Joel , KARCZEWICZ, Marta , WANG, Xianglin
发明人： GUO, Liwei , SOLE ROJALS, Joel , KARCZEWICZ, Marta , WANG, Xianglin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/00121 , H04N19/13 , H04N19/134 , H04N19/167 , H04N19/176 , H04N19/61 , H04N19/70 , H04N19/93
摘要： This disclosure describes techniques for coding transform coefficients for a block of video data. For example, according to one embodiment, a video encoder determines an IrglPos value associated with the transform coefficient based on the noTrl value and a position k of the transform in the scan order of the block of video data based on using at least one table that defines an IrglPos value for more than one potential noTrl value for the scan order of the block of video data. In one embodiment, the video decoder uses the determined IrglPos value associated with the transform coefficient to perform a structured mapping to determine a code number cn based on a determined value for the level lD syntax element and a determined value for the run syntax element.
摘要翻译：本公开描述了用于编码视频数据块的变换系数的技术。例如，根据一个实施例，视频编码器基于使用至少一个表格，基于视频数据块的扫描顺序中的noTr值和变换的位置k来确定与变换系数相关联的IrglPos值，为视频数据块的扫描顺序为多个潜在的noTrl值定义IrglPos值。在一个实施例中，视频解码器使用与变换系数相关联的确定的IrglPos值来执行结构化映射，以基于级别lD语法元素的确定值和运行语法元素的确定值来确定代码数量cn。

25. 发明申请

WO2013040370A1 LINE BUFFER REDUCTION FOR SHORT DISTANCE INTRA - PREDICTION IN VIDEO CODING 审中-公开
标题翻译：线路缓冲器减少短距离内窥镜 - 视频编码中的预测
公开(公告)号：WO2013040370A1
公开(公告)日：2013-03-21
申请号：PCT/US2012/055442
申请日：2012-09-14
申请人： QUALCOMM INCORPORATED , GUO, Liwei , KARCZEWICZ, Marta , WANG, Xianglin
发明人： GUO, Liwei , KARCZEWICZ, Marta , WANG, Xianglin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/13 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/91
摘要： A video coder, such as a video encoder or a video decoder, identifies an entropy coding context in a set of one or more entropy coding contexts. The video coder identifies the entropy coding context without reference to a neighboring coding unit that is above a current coding unit in a current picture. The video coder then entropy codes a short distance intra-prediction (SDIP) syntax element of a coding unit (CU) using the identified entropy coding context. The SDIP syntax element at least partially defines a mode by which the CU is partitioned into a set of one or more transform units.
摘要翻译：诸如视频编码器或视频解码器的视频编码器识别一组或多个熵编码上下文中的熵编码上下文。视频编码器不参照当前图像中当前编码单元之上的相邻编码单元来识别熵编码上下文。视频编码器然后使用所识别的熵编码上下文对编码单元（CU）的短距离帧内预测（SDIP）语法元素进行熵编码。 SDIP语法元素至少部分地定义了CU被分割成一组一个或多个变换单元的模式。

26. 发明申请

WO2013006297A1 APPLYING NON-SQUARE TRANSFORMS TO VIDEO DATA 审中-公开
标题翻译：将非正方形变换应用于视频数据
公开(公告)号：WO2013006297A1
公开(公告)日：2013-01-10
申请号：PCT/US2012/044043
申请日：2012-06-25
申请人： QUALCOMM INCORPORATED , GUO, Liwei , SOLE ROJALS, Joel , JOSHI, Rajan Laxman , CHEN, Peisong , WANG, Xianglin , KARCZEWICZ, Marta
发明人： GUO, Liwei , SOLE ROJALS, Joel , JOSHI, Rajan Laxman , CHEN, Peisong , WANG, Xianglin , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/96 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/46 , H04N19/70
摘要： In one example, a device for coding video data includes a video coder, such as a video encoder or a video decoder, that is configured to code information indicative of whether a transform unit of the video data is square or non-square, and code data of the transform unit based at least in part on whether the transform unit is square or non- square. In this manner, the video coder may utilize non-square transform units. The video coder may be configured to use non-square transform units for certain situations, such as only for chrominance or luminance components or only when a corresponding prediction unit is non-square. The video coder may further be configured to perform an entropy coding process that selects context for coding data of the transform unit based on whether the transform unit is square or non-square.
摘要翻译：在一个示例中，用于编码视频数据的设备包括诸如视频编码器或视频解码器的视频编码器，其被配置为对指示视频数据的变换单元是正方形还是非正方形的信息进行编码，以及代码所述变换单元的数据至少部分地基于所述变换单元是平方还是非正方形。以这种方式，视频编码器可以利用非正方形变换单元。视频编码器可以被配置为在诸如仅用于色度或亮度分量的某些情况下使用非平方变换单元，或者仅当相应的预测单元是非正方形时才使用。视频编码器还可以被配置为执行熵编码处理，其基于变换单元是正方形还是非正方形来选择用于对变换单元的数据进行编码的上下文。

27. 发明申请

WO2012166963A1 RUN-MODE BASED COEFFICIENT CODING FOR VIDEO CODING 审中-公开
标题翻译：基于运行模式的视频编码系统编码
公开(公告)号：WO2012166963A1
公开(公告)日：2012-12-06
申请号：PCT/US2012/040272
申请日：2012-05-31
申请人： QUALCOMM Incorporated , GUO, Liwei , KARCZEWICZ, Marta , WANG, Xianglin
发明人： GUO, Liwei , KARCZEWICZ, Marta , WANG, Xianglin
IPC分类号： H04N7/26 , H04N7/30
CPC分类号： H04N19/93 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/91
摘要： A video coding device is configured to code coefficients of residual blocks of video data. When a coefficient of a transform unit of video data has a scan order value that is less than a threshold and when the coefficient is the last significant coefficient in a scan order in the transform unit, the video coding device may execute a function to determine a mapping between data for the coefficient and a codeword index value, and code the data for the coefficient using a codeword associated with the codeword index value. The video coding device may comprise a video encoder or a video decoder, in some examples.
摘要翻译：视频编码装置被配置为对视频数据的残留块的系数进行编码。当视频数据的变换单位的系数具有小于阈值的扫描顺序值，并且当系数是变换单元中的扫描顺序中的最后有效系数时，视频编码装置可以执行确定在系数的数据和码字索引值之间进行映射，并且使用与码字索引值相关联的码字对系数的数据进行编码。在一些示例中，视频编码装置可以包括视频编码器或视频解码器。

28. 发明申请

WO2013002895A1 TRANSITION BETWEEN RUN AND LEVEL CODING MODES 审中-公开
标题翻译：运行和电平编码模式之间的过渡
公开(公告)号：WO2013002895A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/037291
申请日：2012-05-10
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , GUO, Liwei , WANG, Xianglin
发明人： KARCZEWICZ, Marta , GUO, Liwei , WANG, Xianglin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/18 , H04N19/103 , H04N19/13 , H04N19/14 , H04N19/46 , H04N19/61 , H04N19/70
摘要： This disclosure describes techniques for coding transform coefficients for a block of video data. According to some aspects of this disclosure, a video coder (e.g., encoder, decoder) may code a first coefficient of a leaf-level unit of video data using a run encoding mode. The coder may code a second coefficient of the leaf-level unit of video data using a level encoding mode. After coding at least one coefficient using the level coding mode, the coder may use the run coding mode to code a third other coefficient of the leaf-level unit of video data. According to other aspects, an encoder may signal, to a decoder, at least one indication of a transition between level and run coding modes. According to still other aspects, a coder may automatically determine when to transition between the level and run coding modes.
摘要翻译：本公开描述了用于编码视频数据块的变换系数的技术。根据本公开的一些方面，视频编码器（例如，编码器，解码器）可以使用运行编码模式来编码视频数据的叶级单元的第一系数。编码器可以使用电平编码模式来编码视频数据的叶级单元的第二系数。在使用电平编码模式编码至少一个系数之后，编码器可以使用运行编码模式来编码视频数据的叶级单元的第三其他系数。根据其它方面，编码器可以向解码器发送电平和运行编码模式之间的转换的至少一个指示。根据其他方面，编码器可以自动确定何时在电平和运行编码模式之间转换。

29. 发明申请

WO2012122355A1 TRANSFORMS IN VIDEO CODING 审中-公开
标题翻译：视频编码中的变换
公开(公告)号：WO2012122355A1
公开(公告)日：2012-09-13
申请号：PCT/US2012/028233
申请日：2012-03-08
申请人： QUALCOMM INCORPORATED , CHEN, Ying , GUO, Liwei , CHEN, Peisong , KARCZEWICZ, Marta , WANG, Xianglin
发明人： CHEN, Ying , GUO, Liwei , CHEN, Peisong , KARCZEWICZ, Marta , WANG, Xianglin
IPC分类号： H04N7/26
CPC分类号： H04N19/186 , H04N19/122 , H04N19/176 , H04N19/96
摘要： Aspects of this disclosure relate to a method of coding video data. In an example, the method includes determining a first residual quadtree (RQT) depth at which to apply a first transform to luma information associated with a block of video data, wherein the RQT represents a manner in which transforms are applied to luma information and chroma information. The method also includes determining a second RQT depth at which to apply a second transform to the chroma information associated with the block of video data, wherein the second RQT depth is different than the first RQT depth. The method also includes coding the luma information at the first RQT depth and the chroma information at the second RQT depth.
摘要翻译：本公开的方面涉及对视频数据进行编码的方法。在一个示例中，该方法包括确定将第一变换应用于与视频数据块相关联的亮度信息的第一残余四叉树（RQT）深度，其中RQT表示将变换应用于亮度信息和色度的方式信息。该方法还包括确定将第二变换应用于与视频数据块相关联的色度信息的第二RQT深度，其中第二RQT深度不同于第一RQT深度。该方法还包括以第一RQT深度编码亮度信息和在第二RQT深度对色度信息进行编码。

30. 发明申请

WO2019178721A1 IMPROVEMENTS TO ADVANCED TEMPORAL MOTION VECTOR PREDICTION 审中-公开
公开(公告)号：WO2019178721A1
公开(公告)日：2019-09-26
申请号：PCT/CN2018/079458
申请日：2018-03-19
申请人： QUALCOMM INCORPORATED , HAN, Yu , ZHANG, Kai , ZHANG, Li , CHIEN, Wei-Jung , KARCZEWICZ, Marta
发明人： HAN, Yu , ZHANG, Kai , ZHANG, Li , CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N19/51
摘要： Methods and devices for decoding including a processor configured to determine which picture is a collocated picture, and determine a location of an associated block of the video data in the collocated picture that corresponds to the current block of video data in the current coding picture, based on using previously decoded blocks in the current coding picture to find an initial motion vector between the associated block in the collocated picture and the current block in the current coding picture, where the associated block of the video data includes at least one first derived motion vector. The processor configured to determine at least one second derived motion vector associated with the current block in the current coding picture, when the initial motion vector points to the collocated picture, based on the at least on first derived motion vector associated with the associated block in the collocated picture.

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