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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

WO2011130333A1 VARIABLE LENGTH CODING OF CODED BLOCK PATTERN (CBP) IN VIDEO COMPRESSION 审中-公开
标题翻译：编码块图案（CBP）在视频压缩中的可变长度编码
公开(公告)号：WO2011130333A1
公开(公告)日：2011-10-20
申请号：PCT/US2011/032193
申请日：2011-04-12
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , CHIEN, Wei-Jung , WANG, Xianglin
发明人： KARCZEWICZ, Marta , CHIEN, Wei-Jung , WANG, Xianglin
IPC分类号： H04N7/26
CPC分类号： H04N19/91 , H04N19/122 , H04N19/13 , H04N19/176 , H04N19/196 , H04N19/463 , H04N19/70
摘要： In one example, this disclosure describes method of coding video data. The method comprises coding a block of video data as one or more luminance blocks of transform coefficients and one or more chrominance blocks of transform coefficients, and coding a coded block pattern (CBP) for the block of video data. The CBP comprises syntax information that identifies whether non-zero data is included in each of the luminance blocks and each of the chrominance blocks. Coding the CBP includes selecting one or more variable length coding (VLC) tables based on a transform size used in performing one or more transforms on the one or more luminance blocks.
摘要翻译：在一个示例中，本公开描述了对视频数据进行编码的方法。该方法包括将视频数据块编码为变换系数的一个或多个亮度块和变换系数的一个或多个色度块，以及对视频数据块的编码块模式（CBP）进行编码。 CBP包括用于识别非零数据是否包括在每个亮度块和每个色度块中的语法信息。编码CBP包括基于在一个或多个亮度块上执行一个或多个变换所使用的变换大小来选择一个或多个可变长度编码（VLC）表。

3. 发明申请

WO2012173991A1 BORDER PIXEL PADDING FOR INTRA PREDICTION IN VIDEO CODING 审中-公开
标题翻译：用于视频编码的内部预测的边界像素包装
公开(公告)号：WO2012173991A1
公开(公告)日：2012-12-20
申请号：PCT/US2012/042052
申请日：2012-06-12
申请人： QUALCOMM INCORPORATED , WANG, Xianglin , CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Peisong , CHEN, Ying
发明人： WANG, Xianglin , CHIEN, Wei-Jung , KARCZEWICZ, Marta , CHEN, Peisong , CHEN, Ying
IPC分类号： H04N7/26 , H04N7/34 , H04N7/50
CPC分类号： H04N19/182 , H04N19/105 , H04N19/593 , H04N19/61
摘要： A video coder performs a padding operation that processes a set of border pixels according to an order. The order starts at a bottom-left border pixel and proceeds through the border pixels sequentially to a top-right border pixel. When the padding operation processes an unavailable border pixel, the padding operation predicts a value of the unavailable border pixel based on a value of a border pixel previously processed by the padding operation. The video coder may generate an intra-predicted video block based on the border pixels.
摘要翻译：视频编码器根据顺序执行处理一组边框像素的填充操作。该顺序从左下角的边框像素开始，并且顺序通过边框像素顺序到右上边框像素。当填补操作处理不可用边界像素时，填充操作基于先前由填充操作处理的边界像素的值来预测不可用边框像素的值。视频编码器可以基于边界像素生成帧内预测视频块。

4. 发明申请

WO2012167097A1 MEMORY EFFICIENT CONTEXT MODELING 审中-公开
标题翻译：记忆有效的背景建模
公开(公告)号：WO2012167097A1
公开(公告)日：2012-12-06
申请号：PCT/US2012/040483
申请日：2012-06-01
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , KARCZEWICZ, Marta , WANG, Xianglin
发明人： CHIEN, Wei-Jung , KARCZEWICZ, Marta , WANG, Xianglin
IPC分类号： H04N7/26 , H04N7/30
CPC分类号： H04N19/436 , H04N19/13 , H04N19/176 , H04N19/423 , H04N19/70 , H04N19/96
摘要： In an example, aspects of this disclosure relate to a method of coding video data that includes determining context information for a block of video data, where the block is included within a coded unit of video data, where the block is below a top row of blocks in the coded unit, and where the context information does not include information from an above-neighboring block in the coded unit. That method also includes entropy coding data of the block using the determined context information.
摘要翻译：在一个示例中，本公开的方面涉及一种对视频数据进行编码的方法，该方法包括确定视频数据块的上下文信息，其中该块被包括在视频数据的经译码单元中，其中该块位于视频数据的顶行之下编码单元中的块，并且其中上下文信息不包括来自编码单元中的相邻块的信息。该方法还包括使用所确定的上下文信息来熵编码块的数据。

5. 发明申请

WO2012094506A1 INDICATING INTRA-PREDICTION MODE SELECTION FOR VIDEO CODING USING CABAC 审中-公开
标题翻译：使用CABAC指示视频编码的预测模式选择
公开(公告)号：WO2012094506A1
公开(公告)日：2012-07-12
申请号：PCT/US2012/020346
申请日：2012-01-05
申请人： QUALCOMM Incorporated , KARCZEWICZ, Marta , WANG, Xianglin , CHIEN, Wei-Jung
发明人： KARCZEWICZ, Marta , WANG, Xianglin , CHIEN, Wei-Jung
IPC分类号： H04N7/26
CPC分类号： H04N19/13 , H04N19/11 , H04N19/137 , H04N19/139 , H04N19/196 , H04N19/463
摘要： For a block of video data, a video encoder can signal to a video decoder, using a context-based adaptive binary arithmetic coding (CABAC) process, a selected intra-prediction mode using a codeword that is mapped to a modified intra-prediction mode index. The video decoder can perform a context-based adaptive binary arithmetic coding (CABAC) process to determine the codeword signaled by the video encoder, determine the modified intra-prediction mode index corresponding to the codeword, determine most probable modes based on a context, map the modified intra-prediction mode index to an intra-prediction mode index by comparing the modified intra-prediction mode index to the mode indexes of the most probable modes, and determine the selected intra-prediction mode used to encode the block of video data based on the intra-prediction mode index.
摘要翻译：对于视频数据块，视频编码器可以使用基于上下文的自适应二进制算术编码（CABAC）处理视频解码器，使用映射到修改的帧内预测模式的码字来选择的帧内预测模式指数。视频解码器可以执行基于上下文的自适应二进制算术编码（CABAC）处理，以确定由视频编码器发信号的码字，确定对应于码字的经修改的帧内预测模式索引，基于上下文确定最可能的模式，映射通过将修改的帧内预测模式索引与最可能模式的模式索引进行比较来确定帧内预测模式索引到帧内预测模式索引，并且确定用于对视频数据块进行编码的所选择的帧内预测模式在帧内预测模式指标上。

6. 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。

7. 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。

8. 发明申请

WO2012170812A1 ENHANCED INTRA-PREDICTION MODE SIGNALING FOR VIDEO CODING USING NEIGHBORING MODE 审中-公开
标题翻译：使用相邻模式进行视频编码的增强型预测模式信号
公开(公告)号：WO2012170812A1
公开(公告)日：2012-12-13
申请号：PCT/US2012/041545
申请日：2012-06-08
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , KARCZEWICZ, Marta , WANG, Xianglin
发明人： CHIEN, Wei-Jung , KARCZEWICZ, Marta , WANG, Xianglin
IPC分类号： H04N7/26 , H04N7/34
CPC分类号： H04N19/593 , H04N19/11 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463
摘要： This disclosure describes techniques for intra-prediction mode signaling for video coding. In one example, a video coder is configured to determine, for a block of video data, a set of most probable intra-prediction modes such that the set of most probable intraprediction modes has a size that is equal to a predetermined number that is greater than or equal to two. The video coder is also configured to code a value representative of an actual intra-prediction mode for the block based at least in part on the set of most probable intraprediction modes and code the block using the actual intra-prediction mode. The video coder may further be configured to code the block using the actual intra-prediction mode, e.g., to encode or decode the block. Video encoders and video decoders may implement these techniques.
摘要翻译：本公开描述了用于视频编码的帧内预测模式信令的技术。在一个示例中，视频编码器被配置为针对视频数据块确定最可能的帧内预测模式的集合，使得最可能的预测模式的集合具有等于大于预定数量的大小大于或等于2。视频编码器还被配置为至少部分地基于最可能的预测模式的集合来编码表示块的实际帧内预测模式的值，并且使用实际帧内预测模式对块进行编码。视频编码器还可以被配置为使用实际的帧内预测模式对块进行编码，例如对块进行编码或解码。视频编码器和视频解码器可以实现这些技术。

9. 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。

10. 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。

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