专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2013006297A9 APPLYING NON-SQUARE TRANSFORMS TO VIDEO DATA 审中-公开
标题翻译：对视频数据应用非平方转换
公开(公告)号：WO2013006297A9
公开(公告)日：2013-03-07
申请号：PCT/US2012044043
申请日：2012-06-25
申请人： QUALCOMM INC , 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，用于对视频数据进行译码的设备包括视频译码器，例如视频编码器或视频译码器，其经配置以译码指示视频数据的变换单元是正方形还是非正方形的信息，且代码变换单元的数据至少部分基于变换单元是正方形还是非正方形。以此方式，视频译码器可使用非正方形变换单元。视频译码器可经配置以针对某些情况使用非正方形变换单元，例如仅针对色度或亮度分量或仅当对应预测单元为非正方形时使用非正方形变换单元。视频译码器可进一步经配置以执行熵编码过程，所述熵译码过程基于变换单元是正方形还是非正方形而选择用于编码变换单元的数据的上下文。

2. 发明申请

WO2013012930A1 COEFFICIENT SCANNING IN VIDEO CODING 审中-公开
标题翻译：视频编码中的系统扫描
公开(公告)号：WO2013012930A1
公开(公告)日：2013-01-24
申请号：PCT/US2012047220
申请日：2012-07-18
申请人： QUALCOMM INC , JOSHI RAJAN LAXMAN , SOLE ROJALS JOEL , KARCZEWICZ MARTA , ZHENG YUNFEI , WANG XIANGLIN
发明人： JOSHI RAJAN LAXMAN , SOLE ROJALS JOEL , KARCZEWICZ MARTA , ZHENG YUNFEI , WANG XIANGLIN
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/625 , H04N19/129 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/436 , H04N19/61
摘要： In an example, aspects of this disclosure relate to a method for decoding transform coefficients in a video decoding process that includes decoding a one-dimensional array of transform coefficients, and performing a scan on the one-dimensional array of transform coefficients according to a sub-block scan order and a coefficient scan order to produce a block of transform coefficients, where the sub-block scan order comprises an order in which each sub-block of a plurality of sub-blocks within the block is scanned, and where the coefficient scan order comprises an order in which the transform coefficients corresponding to each sub-block of the plurality of sub-blocks are scanned.
摘要翻译：在一个示例中，本公开的方面涉及用于解码视频解码处理中的变换系数的方法，该方法包括对变换系数的一维阵列进行解码，以及根据子像素对变换系数的一维阵列进行扫描块扫描顺序和系数扫描顺序以产生变换系数块，其中子块扫描顺序包括其中扫描块内的多个子块的每个子块的顺序，并且其中系数扫描顺序包括扫描与多个子块中的每个子块相对应的变换系数的顺序。

3. 发明申请

WO2013009845A3 CODING SYNTAX ELEMENTS USING VLC CODEWORDS 审中-公开
标题翻译：使用VLC CODEWORDS编码语法元素
公开(公告)号：WO2013009845A3
公开(公告)日：2013-07-11
申请号：PCT/US2012046218
申请日：2012-07-11
申请人： QUALCOMM INC , KARCZEWICZ MARTA , GUO LIWEI , WANG XIANGLIN
发明人： KARCZEWICZ MARTA , GUO LIWEI , WANG XIANGLIN
IPC分类号： H04N7/30
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：本发明描述用于译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。视频译码器使用所存储的第一VLC表阵列选择表与第二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。视频译码器使用重建的第二VLC表阵列选择表的至少一个条目来编码视频数据的至少一个块。

4. 发明申请

WO2013002895A8 TRANSITION BETWEEN RUN AND LEVEL CODING MODES 审中-公开
标题翻译：运行和等级编码模式之间的转换
公开(公告)号：WO2013002895A8
公开(公告)日：2013-11-28
申请号：PCT/US2012037291
申请日：2012-05-10
申请人： QUALCOMM INC , 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：本发明描述用于译码视频数据块的变换系数的技术。根据本公开的一些方面，视频译码器（例如，编码器，解码器）可使用游程编码模式对视频数据的叶级单元的第一系数进行译码。编码器可以使用电平编码模式对视频数据的叶级单元的第二系数进行编码。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。根据其他方面，编码器可以向解码器发信号通知级别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级别和运行编码模式之间转换。

5. 发明申请

WO2013039908A3 NON-SQUARE TRANSFORM UNITS AND PREDICTION UNITS IN VIDEO CODING 审中-公开
标题翻译：非正方形变形单元和预测单元在视频编码中的应用
公开(公告)号：WO2013039908A3
公开(公告)日：2013-05-10
申请号：PCT/US2012054654
申请日：2012-09-11
申请人： QUALCOMM INC , 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 , H04N19/00781 , 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：本公开提出了在帧内预测视频编码处理中进行变换划分的技术。在一个示例中，对于给定的帧内预测块，基于某些条件允许减少数量的变换单元分区选项。在另一示例中，变换单元与用于帧内预测块的预测单元去耦。对于给定的预测单元，可以应用来自预测单元的不同大小和形状的变换。在另一示例中，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。

6. 发明申请

WO2013012867A2 BUFFERING PREDICTION DATA IN VIDEO CODING 审中-公开
标题翻译：缓冲视频编码中的预测数据
公开(公告)号：WO2013012867A2
公开(公告)日：2013-01-24
申请号：PCT/US2012047073
申请日：2012-07-17
申请人： QUALCOMM INC , 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
CPC分类号： H04N19/11 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/51 , H04N19/593
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.
摘要翻译：在示例中，本公开的方面涉及一种对视频数据进行译码的方法，该方法通常包括确定视频数据块的预测信息，其中该块被包括在视频数据的经译码单元中且定位于上方行的顶行之下，并且其中块的预测信息基于来自编码单元中的一个或更多个其它块的预测信息，但是不基于来自编码单元中的最上面一行块中的任何一个块的预测信息。该方法一般还包括基于所确定的预测信息对块进行编码。

7. 发明申请

WO2011103213A3 ENCODING MOTION VECTORS FOR GEOMETRIC MOTION PARTITIONING 审中-公开
标题翻译：编码运动矢量进行几何运动分区
公开(公告)号：WO2011103213A3
公开(公告)日：2012-02-16
申请号：PCT/US2011025126
申请日：2011-02-16
申请人： QUALCOMM INC , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
发明人： CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/615 , H04N19/119 , H04N19/122 , H04N19/137 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/537 , H04N19/543 , H04N19/66
摘要： In one example, an apparatus includes a video encoder configured to partition a block of video data into a first partition and a second partition using a geometric motion partition line, determine a first motion vector for the first partition and a second motion vector for the second partition, encode the first motion vector based on a first motion predictor selected from motion vectors for blocks neighboring the first partition, encode the second motion vector based on a second motion predictor selected from motion vectors for blocks neighboring the second partition, wherein the blocks neighboring the second partition are determined independently of the blocks neighboring the first partition, and output the encoded first and second motion vectors. A video decoder may similarly decode the motion vectors based on determining the first and second motion predictors for the first and second partitions.
摘要翻译：在一个示例中，一种装置包括视频编码器，其被配置为使用几何运动分割线将视频数据块分割成第一分区和第二分区，确定第一分区的第一运动矢量和第二分区的第二运动矢量基于从与第一分区相邻的块的运动矢量中选择的第一运动预测器对第一运动矢量进行编码，基于从邻近于第二分区的块的运动矢量中选择的第二运动预测器对第二运动矢量进行编码，其中块相邻独立于与第一分区相邻的块独立地确定第二分区，并且输出编码的第一和第二运动矢量。视频解码器可以基于确定第一和第二分区的第一和第二运动预测器来类似地解码运动矢量。

8. 发明申请

WO2012015650A2 CODING MOTION PREDICTION DIRECTION IN VIDEO CODING 审中-公开
标题翻译：编码运动预测方向在视频编码
公开(公告)号：WO2012015650A2
公开(公告)日：2012-02-02
申请号：PCT/US2011044732
申请日：2011-07-20
申请人： QUALCOMM INC , CHIEN WEI-JUNG , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA , CHEN YING , COBAN MUHAMMED Z
发明人： CHIEN WEI-JUNG , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA , CHEN YING , COBAN MUHAMMED Z
IPC分类号： H04N7/26 , H04N7/36 , H04N7/46 , H04N7/50
CPC分类号： H04N19/52 , H04N19/109 , H04N19/114 , H04N19/115 , H04N19/13 , H04N19/159 , H04N19/162 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/573 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/91
摘要： This disclosure relates to techniques for reducing a cost of coding prediction information in video coding. Video blocks in a generalized P/B (GPB) frame are encoded using up to two motion vectors calculated from reference pictures in two separate reference picture lists that are identical. When one of the reference picture lists is preferred over the other reference picture list, the preferred reference picture list may be used for unidirectional prediction, by default. When a GPB frame is enabled such that the first and second reference picture lists are identical, either of the first and second reference picture lists may be used for unidirectional prediction. The techniques include coding one or more syntax elements indicating that a video block is coded using one of the unidirectional prediction mode with respect to a reference picture in a reference picture list and the bidirectional prediction mode using less than two bits.
摘要翻译：本公开涉及用于降低视频编码中的预测信息编码成本的技术。广义P / B（GPB）帧中的视频块使用相同的两个单独参考图片列表中的参考图片计算的最多两个运动矢量进行编码。当参考图像列表中的一个优于另一个参考图像列表时，默认情况下优选的参考图像列表可用于单向预测。当启用GPB帧使得第一和第二参考图片列表相同时，第一和第二参考图片列表中的任一个可以用于单向预测。这些技术包括编码一个或多个语法元素，其指示使用单向预测模式中的一个相对于参考图像列表中的参考图像和使用少于两个比特的双向预测模式来编码视频块。

9. 发明申请

WO2011103210A3 SMOOTHING OVERLAPPED REGIONS RESULTING FROM GEOMETRIC MOTION PARTITIONING 审中-公开
标题翻译：根据几何运动分类得出的平滑覆盖区域
公开(公告)号：WO2011103210A3
公开(公告)日：2012-02-02
申请号：PCT/US2011025123
申请日：2011-02-16
申请人： QUALCOMM INC , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
发明人： CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/615 , H04N19/119 , H04N19/122 , H04N19/137 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/537 , H04N19/543 , H04N19/66
摘要： In one example, an apparatus includes a video encoder configured to partition a block of video data into a first partition and a second partition using a geometric motion partition line, calculate a prediction value of a pixel in a transition region of the block using a filter that applies a value for at least one neighboring pixel from the first partition and a value for at least one neighboring pixel from the second partition, calculate a residual value of the pixel in the transition region of the block based on the prediction value of the pixel in the transition region, and output the residual value of the pixel. In one example, a video decoder may use a similar filter to decode an the encoded block after receiving the residual value for the encoded block, and using a definition of the geometric motion partition line.
摘要翻译：在一个示例中，一种装置包括视频编码器，其被配置为使用几何运动分割线将视频数据块分割成第一分区和第二分区，使用滤波器计算块的过渡区域中的像素的预测值其对来自第一分区的至少一个相邻像素应用值，并且从第二分区施加至少一个相邻像素的值，基于像素的预测值计算块的过渡区域中的像素的残留值并且输出像素的残留值。在一个示例中，视频解码器可以在接收到编码块的残余值之后使用类似的滤波器对编码块进行解码，并且使用几何运动分割线的定义。

10. 发明申请

WO2012015650A3 CODING OF INTER PREDICTION MODES AND OF REFERENCE PICTURE LIST INDEXES FOR VIDEO CODING 审中-公开
标题翻译：互相预测模式的编码和视频编码的参考图像列表索引
公开(公告)号：WO2012015650A3
公开(公告)日：2012-03-22
申请号：PCT/US2011044732
申请日：2011-07-20
申请人： QUALCOMM INC , CHIEN WEI-JUNG , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA , CHEN YING , COBAN MUHAMMED Z
发明人： CHIEN WEI-JUNG , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA , CHEN YING , COBAN MUHAMMED Z
IPC分类号： H04N7/26 , H04N7/36 , H04N7/46 , H04N7/50
CPC分类号： H04N19/52 , H04N19/109 , H04N19/114 , H04N19/115 , H04N19/13 , H04N19/159 , H04N19/162 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/573 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/91
摘要： This disclosure relates to techniques for reducing a cost of coding prediction information in video coding. Video blocks in a generalized P/B (GPB) frame are encoded using up to two motion vectors calculated from reference pictures in two separate reference picture lists that are identical. When one of the reference picture lists is preferred over the other reference picture list, the preferred reference picture list may be used for unidirectional prediction, by default. When a GPB frame is enabled such that the first and second reference picture lists are identical, either of the first and second reference picture lists may be used for unidirectional prediction. The techniques include coding one or more syntax elements indicating that a video block is coded using one of the unidirectional prediction mode with respect to a reference picture in a reference picture list and the bidirectional prediction mode using less than two bits.
摘要翻译：本公开涉及用于降低视频编码中的预测信息编码成本的技术。广义P / B（GPB）帧中的视频块使用相同的两个单独参考图片列表中的参考图片计算的最多两个运动矢量进行编码。当参考图像列表中的一个优于另一个参考图像列表时，默认情况下优选的参考图像列表可用于单向预测。当启用GPB帧使得第一和第二参考图片列表相同时，第一和第二参考图片列表中的任一个可以用于单向预测。这些技术包括编码一个或多个语法元素，其指示使用单向预测模式中的一个相对于参考图像列表中的参考图像和使用少于两个比特的双向预测模式来编码视频块。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式