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1. 发明申请

WO2013012867A3 BUFFERING PREDICTION DATA IN VIDEO CODING 审中-公开
公开(公告)号：WO2013012867A3
公开(公告)日：2013-01-24
申请号：PCT/US2012/047073
申请日：2012-07-17
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , ZHENG, Yunfei , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
发明人： CHIEN, Wei-Jung , ZHENG, Yunfei , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
IPC分类号： H04N7/26 , H04N7/34 , H04N7/36
摘要： In an example, aspects of this disclosure relate to a method of coding video data that generally includes determining prediction information for a block of video data, where the block is included in a coded unit of video data and positioned below a top row of above-neighboring blocks in the coded unit, and where the prediction information for the block is based on prediction information from one or more other blocks in the coded unit but not based on prediction information from any of the top row of blocks in the coded unit. The method also generally includes coding the block based on the determined prediction information.

2. 发明申请

WO2013003741A1 VLC COEFFICIENT CODING FOR LUMA AND CHROMA BLOCK 审中-公开
标题翻译：用于LUMA和CHROMA块的VLC系数编码
公开(公告)号：WO2013003741A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/044976
申请日：2012-06-29
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , WANG, Xianglin , CHIEN, Wei-Jung , GUO, Liwei
发明人： KARCZEWICZ, Marta , WANG, Xianglin , CHIEN, Wei-Jung , GUO, Liwei
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50 , H03M7/30
CPC分类号： H04N19/91 , H04N19/13 , H04N19/176 , H04N19/186 , H04N19/60 , H04N19/61
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) determines whether a block of video data is a luma block or a chroma block. If the block of video data is a luma block, the video coder adaptively updates a VLC table index value based on a code number cn and value of a scaling factor. However, if the block of video data is a chroma block, the video coder adaptively updates the VLC table index value based on the code number cn and without using the scaling factor. The video coder uses the updated VLC table index value to select a VLC table of a plurality of VLC tables that are used to encode or decode the block of video data.
摘要翻译：本公开描述了用于对视频数据块的变换系数进行编码的技术。根据这些技术，视频编码器（视频编码器或视频解码器）确定视频数据块是亮度块还是色度块。如果视频数据块是亮度块，则视频编码器基于码数cn和缩放因子的值自适应地更新VLC表索引值。然而，如果视频数据块是色度块，则视频编码器基于码数cn自适应地更新VLC表索引值，而不使用缩放因子。视频编码器使用更新的VLC表索引值来选择用于对视频数据块进行编码或解码的多个VLC表的VLC表。

3. 发明申请

WO2012078767A1 CODEWORD ADAPTATION FOR VARIABLE LENGTH CODING 审中-公开
标题翻译：可变长度编码的编码器适配
公开(公告)号：WO2012078767A1
公开(公告)日：2012-06-14
申请号：PCT/US2011/063757
申请日：2011-12-07
申请人： QUALCOMM Incorporated , CHIEN, Wei-Jung , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
发明人： CHIEN, Wei-Jung , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
IPC分类号： H03M7/42 , H03M7/40 , H04N7/26
CPC分类号： H03M7/40 , H03M7/42 , H04N19/91
摘要： In one example, this disclosure describes a method of codeword adaptation for variable length coding. The method includes applying a first codeword adaptation scheme to groups of codewords in a variable length coding (VLC) table to change mappings of codewords within the groups to events in the VLC table; and applying a second codeword adaptation scheme to individual codewords within the groups of codewords in the VLC table to change mappings of the codewords to the events within the groups in the VLC table.
摘要翻译：在一个示例中，本公开描述了用于可变长度编码的码字适配的方法。所述方法包括：在可变长度编码（VLC）表中应用码字组适配方案以改变所述组内的码字的映射到所述VLC表中的事件的映射; 以及将所述VLC表中的码字组内的各个码字应用第二码字适配方案，以将所述码字的映射改变为所述VLC表中的组内的事件。

4. 发明申请

WO2012078762A1 CODEWORD ADAPTATION FOR VARIABLE LENGTH CODING 审中-公开
标题翻译：可变长度编码的编码器适配
公开(公告)号：WO2012078762A1
公开(公告)日：2012-06-14
申请号：PCT/US2011/063750
申请日：2011-12-07
申请人： QUALCOMM Incorporated , CHIEN, Wei-Jung , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
发明人： CHIEN, Wei-Jung , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
IPC分类号： H03M7/42 , H03M7/40 , H04N7/26
CPC分类号： H03M7/40 , H03M7/42 , H04N19/91
摘要： In one example, this disclosure describes a method of codeword adaptation for variable length coding. The method comprises applying a first codeword adaptation scheme to a first group of codewords of a variable length coding (VLC) table to change a mapping of codewords to events in the VLC table; and applying a second codeword adaptation scheme to a second group of codewords of the VLC table to change the mapping of the codewords to the events in the VLC table.
摘要翻译：在一个示例中，本公开描述了用于可变长度编码的码字适配的方法。该方法包括将第一码字适配方案应用于可变长度编码（VLC）表的第一组码字，以改变码字到VLC表中的事件的映射; 以及将第二码字适配方案应用于所述VLC表的第二组码字，以将所述码字的映射改变为所述VLC表中的事件。

5. 发明申请

WO2012094234A1 VARIABLE LENGTH CODING OF VIDEO BLOCK COEFFICIENTS 审中-公开
标题翻译：视频块系数的可变长度编码
公开(公告)号：WO2012094234A1
公开(公告)日：2012-07-12
申请号：PCT/US2011/067893
申请日：2011-12-29
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , WANG, Xianglin , CHIEN, Wei-Jung , GUO, Liwei
发明人： KARCZEWICZ, Marta , WANG, Xianglin , CHIEN, Wei-Jung , GUO, Liwei
IPC分类号： H04N7/26 , H04N7/30 , H03M7/42
CPC分类号： H03M7/42 , H04N19/13 , H04N19/60 , H04N19/93
摘要： This disclosure describes techniques for coding transform coefficients for a block of video data. According to some aspects of this disclosure, a coder (e.g., an encoder or decoder) may map between a code number cn and level_ID and run values associated with a first transform coefficient of the block of video data according to a first technique (e.g., a structured mapping), and map between a code number cn and level_ID and run values associated with a second coefficient of the block using a second technique. According to other aspects of this disclosure, the coder may map between a code number cn and level_ID and run syntax elements using different mathematical relationships, depending on a determined value of the code number cn or the level_ID syntax element. For example, the coder may access a mapping table of a plurality of mapping tables differently, dependent on the determined value.
摘要翻译：本公开描述了用于对视频数据块的变换系数进行编码的技术。根据本公开的一些方面，编码器（例如，编码器或解码器）可以根据第一技术（例如，编码器或解码器）在视频数据块的第一变换系数与代码号cn和level_ID之间映射运行值，结构化映射），并且使用第二技术在代码号cn和level_ID之间映射和与块的第二系数相关联的运行值。根据本公开的其他方面，编码器可以根据代码号cn或level_ID语法元素的确定值，在代码号cn和level_ID之间映射并使用不同的数学关系运行语法元素。例如，编码器可以根据确定的值不同地访问多个映射表的映射表。

6. 发明申请

WO2012078756A1 CODEWORD ADAPTATION FOR VARIABLE LENGTH CODING 审中-公开
标题翻译：可变长度编码的编码器适配
公开(公告)号：WO2012078756A1
公开(公告)日：2012-06-14
申请号：PCT/US2011/063740
申请日：2011-12-07
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
发明人： CHIEN, Wei-Jung , WANG, Xianglin , KARCZEWICZ, Marta , GUO, Liwei
IPC分类号： H03M7/42 , H03M7/40 , H04N7/26
CPC分类号： H03M7/40 , H03M7/42 , H04N19/91
摘要： In one example, this disclosure describes a method of codeword adaptation for variable length coding. The method comprises determining if a number codewords stored in a variable length coding (VLC) table satisfies a threshold; selecting a codeword adaptation scheme from a group of two or more codeword adaptation schemes based on whether the number of codewords satisfies the threshold; and applying the selected adaptation scheme to the codewords stored in the VLC table.
摘要翻译：在一个示例中，本公开描述了用于可变长度编码的码字适配的方法。该方法包括确定存储在可变长度编码（VLC）表中的数字码字是否满足阈值; 基于所述码字的数量是否满足所述阈值，从一组两个或多个码字自适应方案中选择码字适配方案; 以及将所选择的适配方案应用于存储在VLC表中的码字。

7. 发明申请

WO2012167119A1 INTRA PREDICTION MODE CODING WITH DIRECTIONAL PARTITIONS 审中-公开
标题翻译：内部预测模式编码与方向分区
公开(公告)号：WO2012167119A1
公开(公告)日：2012-12-06
申请号：PCT/US2012/040510
申请日：2012-06-01
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , ZHENG, Yunfei , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , ZHENG, Yunfei , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/34
CPC分类号： H04N19/11 , H04N19/176 , H04N19/46 , H04N19/593
摘要： A video coder can determine a most probable mode for a block of video data using non-square partitions based on the direction of the non-square partitions. When the direction of the non-square partitions is vertical, an intra prediction mode of a left-neighboring block can be selected as the most probable intra prediction mode, and when the direction of the non-square partitions is horizontal, an intra prediction mode of an above-neighboring block can be selected as the most probable intra prediction mode.
摘要翻译：视频编码器可以基于非正方形分区的方向，使用非正方形分区来确定视频数据块的最可能模式。当非正方形分区的方向是垂直方向时，可以选择左相邻块的帧内预测模式作为最可能的帧内预测模式，并且当非正方形分区的方向是水平时，帧内预测模式可以选择上述相邻块作为最可能的帧内预测模式。

8. 发明申请

WO2012116212A1 HIERARCHY OF MOTION PREDICTION VIDEO BLOCKS 审中-公开
标题翻译：运动预测视频块的分层
公开(公告)号：WO2012116212A1
公开(公告)日：2012-08-30
申请号：PCT/US2012/026368
申请日：2012-02-23
申请人： QUALCOMM INCORPORATED , ZHENG, Yunfei , CHIEN, Wei-Jung , KARCZEWICZ, Marta
发明人： ZHENG, Yunfei , CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/157 , H04N19/105 , H04N19/176 , H04N19/51 , H04N19/52
摘要： A video decoder is configured to obtain an index value for a current video block. The video decoder obtains a partition type for a current video block. The video decoder selects one of a plurality of defined sets of ordered candidate predictive video blocks based on the partition type of the current video block. A video decoder selects a predictive video block from a selected one of the plurality of defined sets of ordered candidate predictive video blocks based on an index value. A video decoder generates a motion vector for a current video block based on motion information of the predictive video block.
摘要翻译：视频解码器被配置为获得当前视频块的索引值。视频解码器获得当前视频块的分区类型。视频解码器基于当前视频块的分区类型来选择多个定义的有序候选预测视频块集合中的一个。视频解码器基于索引值从多个定义的有序候选预测视频块集合中的所选择的一个中选择预测视频块。视频解码器基于预测视频块的运动信息生成当前视频块的运动矢量。

9. 发明申请

WO2012128903A1 BI-PREDICTIVE MERGE MODE BASED ON UNI-PREDICTIVE NEIGHBORS IN VIDEO CODING 审中-公开
标题翻译：基于视频编码中的预测邻域的BI预测算法模式
公开(公告)号：WO2012128903A1
公开(公告)日：2012-09-27
申请号：PCT/US2012/027136
申请日：2012-02-29
申请人： QUALCOMM INCORPORATED , ZHENG, Yunfei , CHIEN, Wei-Jung , KARCZEWICZ, Marta
发明人： ZHENG, Yunfei , CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/36 , H04N7/46
CPC分类号： H04N19/196 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/197 , H04N19/46 , H04N19/463 , H04N19/52 , H04N19/577
摘要： This disclosure describes a bi-predictive merge mode in which a bi-predictive video block inherits motion information from two different neighboring blocks, wherein the two different neighboring blocks were each encoded in a uni-predictive mode. Bi-predictive coding may improve the ability to achieve compression in video coding. The described bi-predictive merge mode may increase the number of bi-predictive candidates that can be used in the context of merge mode coding by allowing two separate uni-predicted neighbors to be used to define bi-predictive motion information for a video block.
摘要翻译：本公开描述了双预测合并模式，其中双预测视频块从两个不同的相邻块继承运动信息，其中两个不同的相邻块每个以单一预测模式编码。双重预测编码可以提高在视频编码中实现压缩的能力。所描述的双重预测合并模式可以通过允许使用两个单独的非预测邻居来定义用于视频块的双向预测运动信息来增加可以在合并模式编码的上下文中使用的双向预测候选的数量。

10. 发明申请

WO2012121808A1 MOTION VECTOR PREDICTORS (MVPs) FOR BI-PREDICTIVE INTER MODE IN VIDEO CODING 审中-公开
标题翻译：运动矢量预测器（MVPs）用于视频编码中的双重预测互动
公开(公告)号：WO2012121808A1
公开(公告)日：2012-09-13
申请号：PCT/US2012/021885
申请日：2012-01-19
申请人： QUALCOMM Incorporated , ZHENG, Yunfei , CHIEN, Wei-Jung , KARCZEWICZ, Marta
发明人： ZHENG, Yunfei , CHIEN, Wei-Jung , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/463 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/52
摘要： This disclosure describes video coding techniques applicable to a bipredictive intermode that uses adaptive motion vector prediction (AMVP). In particular, this disclosure describes techniques for encoding or decoding video data in which AMVP is used to code a first motion vector and a second motion vector associated with a current video block that is coded in the bipredictive inter mode. More specifically, this disclosure describes techniques in which one motion vector of a bipredictive video block can be used to define a candidate motion vector predictor (MVP) for predicting another motion vector of the bipredictive video block. In many examples, a scaled version of the first motion vector of the bipredictive video block is used as the MVP for the second motion vector of the bipredictive video block. By defining an additional MVP candidate for the second motion vector of a bipredictive video block, improved compression may be achieved.
摘要翻译：本公开描述了适用于使用自适应运动矢量预测（AMVP）的双重预测模式的视频编码技术。具体地，本公开描述了用于编码或解码视频数据的技术，其中使用AMVP来编码第一运动矢量和与以双重预测帧间模式编码的当前视频块相关联的第二运动矢量。更具体地，本公开描述了其中可以使用双重预测视频块的一个运动矢量来定义用于预测双预测视频块的另一运动矢量的候选运动矢量预测器（MVP）的技术。在许多示例中，将双预测视频块的第一运动矢量的缩放版本用作双预测视频块的第二运动矢量的MVP。通过为双预测视频块的第二运动矢量定义附加MVP候选，可以实现改进的压缩。

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