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91. 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。

92. 发明申请

WO2013003284A1 QUANTIZATION IN VIDEO CODING 审中-公开
标题翻译：视频编码中的量化
公开(公告)号：WO2013003284A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/044031
申请日：2012-06-25
申请人： QUALCOMM INCORPORATED , JOSHI, Rajan Laxman , WANG, Xianglin , VAN DER AUWERA, Geert , KARCZEWICZ, Marta
发明人： JOSHI, Rajan Laxman , WANG, Xianglin , VAN DER AUWERA, Geert , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/90 , H04N19/124 , H04N19/126 , H04N19/147 , H04N19/172 , H04N19/174 , H04N19/46 , H04N19/61
摘要： Aspects of this disclosure relate to methods for providing greater control over an amount of quantization for video coding. A first example includes determining a quantization parameter (QP) for coding residual video data, where the QP is indexed to a quantizer step size; determining a quantization scaling value for scaling the quantizer step size, and coding the residual video data using the scaled quantizer step size. A second example includes selecting between at least two QP granularities.
摘要翻译：本公开的方面涉及用于提供对视频编码的量化量的更大控制的方法。第一示例包括确定用于编码残余视频数据的量化参数（QP），其中QP被索引到量化器步长; 确定用于缩放量化器步长的量化缩放值，以及使用缩放的量化器步长对残差视频数据进行编码。第二示例包括在至少两个QP粒度之间进行选择。

93. 发明申请

WO2012088453A2 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：WO2012088453A2
公开(公告)日：2012-06-28
申请号：PCT/US2011/066931
申请日：2011-12-22
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , WANG, Xianglin
发明人： KARCZEWICZ, Marta , WANG, Xianglin
IPC分类号： H04N7/26
CPC分类号： H04N19/93 , H04N19/13 , H04N19/136 , H04N19/159 , H04N19/176 , H04N19/18
摘要： This disclosure describes techniques for coding transform coefficients for a block of video data. According to some aspects of this disclosure, an encoder or decoder may map between a code number cn and last_pos and level_ID syntax elements associated with a block of video data based on a scaling factor S. The scaling factor S may be based on a size of the block of video data being coded.
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，编码器或解码器可基于缩放因子S在代码号cn与last_pos和与视频数据块相关联的level_ID语法元素之间进行映射。缩放因子S可基于该视频数据块被编码。

94. 发明申请

WO2012092282A1 VIDEO CODING USING MAPPED TRANSFORMS AND SCANNING MODES 审中-公开
标题翻译：使用映射变换和扫描模式进行视频编码
公开(公告)号：WO2012092282A1
公开(公告)日：2012-07-05
申请号：PCT/US2011/067398
申请日：2011-12-27
申请人： QUALCOMM INCORPORATED , CHEN, Peisong , ZHENG, Yunfei , JOSHI, Rajan, L. , COBAN, Muhammed, Zeyd , KARCZEWICZ, Marta
发明人： CHEN, Peisong , ZHENG, Yunfei , JOSHI, Rajan, L. , COBAN, Muhammed, Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50
CPC分类号： H04N19/60 , H04N19/122 , H04N19/129 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/46
摘要： A video encoder may transform residual data by using a transform selected from a group of transforms. The transform is applied to the residual data to create a two-dimensional array of transform coefficients. A scanning mode is selected to scan the transform coefficients in the two-dimensional array into a one-dimensional array of transform coefficients. The combination of transform and scanning mode may be selected from a subset of combinations that is based on an intra-prediction mode. The scanning mode may also be selected based on the transform used to create the two-dimensional array. The transforms and/or scanning modes used may be signaled to a video decoder.
摘要翻译：视频编码器可以通过使用从一组变换中选择的变换来变换残差数据。将变换应用于残差数据以创建变换系数的二维阵列。选择扫描模式以将二维阵列中的变换系数扫描成变换系数的一维阵列。可以从基于帧内预测模式的组合的子集中选择变换和扫描模式的组合。也可以基于用于创建二维阵列的变换来选择扫描模式。所使用的变换和/或扫描模式可以被通知给视频解码器。

95. 发明申请

WO2012078388A1 USE OF MOTION VECTORS IN EVALUATING GEOMETRIC PARTITIONING MODES 审中-公开
标题翻译：运动矢量在评估几何分割模式中的运用
公开(公告)号：WO2012078388A1
公开(公告)日：2012-06-14
申请号：PCT/US2011/062224
申请日：2011-11-28
申请人： QUALCOMM Incorporated , GUO, Liwei , KARCZEWICZ, Marta , CHEN, Peisong
发明人： GUO, Liwei , KARCZEWICZ, Marta , CHEN, Peisong
IPC分类号： H04N7/26
CPC分类号： H04N19/543 , H04N19/119 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/56 , H04N19/61
摘要： During a video encoding process, rectangular prediction units (PUs) for a coding unit (CU) are generated. Furthermore, a geometric partitioning mode is used to generate a first and a second geometric PU for the CU. The first and second geometric PUs are associated with different geometric partitions of a sample block of the CU. One of the rectangular PUs is identified as overlapping the first geometric PU. The motion vector of the identified rectangular PU is used to identify a given area of a reference frame. The given area of a reference frame is then used as a starting point of a search to identify a reference sample for the first geometric PU. A motion vector for the first geometric PU indicates a position of the reference sample relative to a position of the first geometric PU. A prediction block is generated using the motion vector for first geometric PU.
摘要翻译：在视频编码处理期间，生成用于编码单元（CU）的矩形预测单元（PU）。此外，使用几何划分模式来为CU产生第一和第二几何PU。第一和第二几何PU与CU的样本块的不同几何分区相关联。矩形PU之一被识别为与第一几何PU重叠。所识别的矩形PU的运动矢量用于识别参考帧的给定区域。然后将参考帧的给定区域用作搜索的起始点，以识别第一几何PU的参考样本。第一几何PU的运动矢量表示参考样本相对于第一几何PU的位置的位置。使用第一几何PU的运动矢量生成预测块。

96. 发明申请

WO2011130186A2 FIXED POINT IMPLEMENTATION FOR GEOMETRIC MOTION PARTITIONING 审中-公开
标题翻译：用于几何运动分配的固定点实现
公开(公告)号：WO2011130186A2
公开(公告)日：2011-10-20
申请号：PCT/US2011/031997
申请日：2011-04-11
申请人： QUALCOMM INCORPORATED , JOSHI, Rajan, L. , CHEN, Peisong , KARCZEWICZ, Marta
发明人： JOSHI, Rajan, L. , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/119 , H04N19/122 , H04N19/137 , H04N19/17 , H04N19/176 , H04N19/46 , H04N19/52 , H04N19/523 , H04N19/543 , H04N19/61 , H04N19/80
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 slope value and a y-intercept value of the geometric motion partition line, wherein the slope value and the y-intercept value comprise integer values, calculate a mask indicative of pixels of the block in the first partition and pixels of the block in the second partition, encode the first partition and the second partition based on the mask, and output the encoded first partition, the encoded second partition, the slope value, and the y-intercept value. This may allow for a fixed point implementation. A video decoder may receive the slope and y-intercept values to calculate the mask and decode the block based on the mask.
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划分为第一分区和第二分区，计算几何运动分割线的斜率值和y截距值，其中所述斜率值和所述y截距值包括整数值，计算指示所述第一分区中的块的像素的掩模和所述第二分区中的块的像素，基于所述掩码对所述第一分区和所述第二分区进行编码，并输出编码的第一分区，编码的第二分区，斜率值和y截距值。这可能允许固定点实现。视频解码器可以接收斜率和y截距值以计算掩码并基于掩码解码块。

97. 发明申请

WO2011103209A2 CHROMINANCE HIGH PRECISION MOTION FILTERING FOR MOTION INTERPOLATION 审中-公开
标题翻译：用于运动插值的高精度运动滤波
公开(公告)号：WO2011103209A2
公开(公告)日：2011-08-25
申请号：PCT/US2011/025122
申请日：2011-02-16
申请人： QUALCOMM INCORPORATED , JOSHI, Rajan L. , CHEN, Peisong , KARCZEWICZ, Marta
发明人： JOSHI, Rajan L. , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/36
CPC分类号： H04N19/523 , H04N19/186 , H04N19/513 , H04N19/61
摘要： A video coding unit may be configured to encode or decode chrominance blocks of video data by reusing motion vectors for corresponding luminance blocks. A motion vector may have greater precision for chrominance blocks than luminance blocks, due to downsampling of chrominance blocks relative to corresponding luminance blocks. The video coding unit may interpolate values for a reference chrominance block by selecting interpolation filters based on the position of the pixel position pointed to by the motion vector. For example, a luminance motion vector may have one-quarter-pixel precision and a chrominance motion vector may have one-eighth-pixel precision. There may be interpolation filters associated with the quarter-pixel precisions. The video coding unit may use interpolation filters either corresponding to the pixel position or neighboring pixel positions to interpolate a value for the pixel position pointed to by the motion vector.
摘要翻译：视频编码单元可以被配置为通过重新使用对应的亮度块的运动矢量来对视频数据的色度块进行编码或解码。由于色度块相对于对应亮度块的下采样，运动矢量可能具有比亮度块更高的色度块精度。视频编码单元可以通过基于由运动矢量指向的像素位置的位置来选择内插滤波器来内插参考色度块的值。例如，亮度运动矢量可以具有四分之一像素精度，并且色度运动矢量可以具有八分之一像素的精度。可以存在与四分之一像素精度相关联的内插滤波器。视频编码单元可以使用对应于像素位置或相邻像素位置的插值滤波器来内插由运动矢量指向的像素位置的值。

98. 发明申请

WO2011002813A1 VIDEO CODING BASED ON FIRST ORDER PREDICTION AND PRE-DEFINED SECOND ORDER PREDICTION MODE 审中-公开
标题翻译：基于第一阶预测和预定义第二订单预测模式的视频编码
公开(公告)号：WO2011002813A1
公开(公告)日：2011-01-06
申请号：PCT/US2010/040481
申请日：2010-06-29
申请人： QUALCOMM INCORPORATED , JOSHI, Rajan L. , CHEN, Peisong , KARCZEWICZ, Marta
发明人： JOSHI, Rajan L. , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/567 , H04N19/102 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/147 , H04N19/176 , H04N19/61
摘要： This disclosure describes video encoding and decoding techniques in which a first order prediction process and a second order prediction process are used in combination to generate predictive video blocks for video coding. First order prediction may be similar to conventional motion estimation and motion compensation that generates residual video blocks. The second order prediction may involve a process similar to conventional intra prediction, but is performed on the residual video blocks. The techniques of this disclosure may pre-define the second order prediction to a specific mode, such as a mode similar to the intra-DC mode used in intra coding. In addition, the techniques of this disclosure may combine aspects of the first order and second order prediction into a single process so that the effects of second order prediction on the residuals are taken into account during the first order prediction process, which may improve compression.
摘要翻译：本公开描述了视频编码和解码技术，其中组合使用一阶预测处理和二阶预测处理以产生用于视频编码的预测视频块。第一阶预测可以类似于产生残余视频块的常规运动估计和运动补偿。二阶预测可以涉及与常规帧内预测类似的处理，但是对剩余视频块执行。本公开的技术可以预定义到特定模式的二阶预测，例如类似于帧内编码中使用的DC内模式的模式。此外，本公开的技术可以将一阶和二阶预测的方面组合成单个过程，使得在第一阶预测过程期间考虑二阶预测对残差的影响，这可以改善压缩。

99. 发明申请

WO2010039728A2 VIDEO CODING WITH LARGE MACROBLOCKS 审中-公开
标题翻译：视频编码与大型MACROBLOCKS
公开(公告)号：WO2010039728A2
公开(公告)日：2010-04-08
申请号：PCT/US2009/058833
申请日：2009-09-29
申请人： QUALCOMM Incorporated , CHEN, Peisong , YE, Yan , KARCZEWICZ, Marta
发明人： CHEN, Peisong , YE, Yan , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50
CPC分类号： H04N19/70 , H04N19/103 , H04N19/147 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/593 , H04N19/61
摘要： Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16x16 pixels. In one example, an apparatus includes a video encoder configured to encode a coded unit comprising a plurality of video blocks, wherein at least one of the plurality of video blocks comprises a size of more than 16x16 pixels and to generate syntax information for the coded unit that includes a maximum size value, wherein the maximum size value indicates a size of a largest one of the plurality of video blocks in the coded unit. The syntax information may also include a minimum size value. In this manner, the encoder may indicate to a decoder the proper syntax decoder to apply to the coded unit.
摘要翻译：描述了使用比常规视频编码和解码标准规定的宏块大的宏块对数字视频数据进行编码和解码的技术。例如，这些技术包括使用包括大于16×16像素的宏块对视频流进行编码和解码。在一个示例中，一种设备包括：视频编码器，被配置为对包括多个视频块的编码单元进行编码，其中所述多个视频块中的至少一个包括大于16×16像素的大小，并且生成所述经编码单元的语法信息其包括最大尺寸值，其中所述最大尺寸值指示所述经编码单元中的所述多个视频块中最大的一个的尺寸。语法信息还可以包括最小大小值。以这种方式，编码器可以向解码器指示适用于编码单元的适当的语法解码器。

100. 发明申请

WO2009126921A1 ADVANCED INTERPOLATION TECHNIQUES FOR MOTION COMPENSATION IN VIDEO CODING 审中-公开
标题翻译：视频编码中运动补偿的先进插值技术
公开(公告)号：WO2009126921A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/040260
申请日：2009-04-10
申请人： QUALCOMM INCORPORATED , YE, Yan , CHEN, Peisong , KARCZEWICZ, Marta
发明人： YE, Yan , CHEN, Peisong , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/00139 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/182 , H04N19/192 , H04N19/523 , H04N19/82
摘要： This disclosure describes various interpolation techniques performed by an encoder and a decoder during the motion compensation process of video coding. In one example, an encoder interpolates pixel values of reference video data based on a plurality of different pre defined interpolation filters. In this example, the decoder receives a syntax element that identifies an interpolation filter, and interpolates pixel values of reference video data based on the interpolation filter identified by the syntax element. In another example, a method of interpolating predictive video data includes generating half-pixel values based on integer pixel values, rounding the half-pixel values to generate half-pixel interpolated values, storing the half-pixel values as non-rounded versions of the half-pixel values, and generating quarter-pixel values based on the non-rounded versions of the half-pixel values and the integer pixel values.
摘要翻译：本公开描述了在视频编码的运动补偿过程期间由编码器和解码器执行的各种插值技术。在一个示例中，编码器基于多个不同的预定义内插滤波器来内插参考视频数据的像素值。在该示例中，解码器接收标识内插滤波器的语法元素，并且基于由语法元素识别的内插滤波器内插参考视频数据的像素值。在另一示例中，内插预测性视频数据的方法包括基于整数像素值生成半像素值，对半像素值进行舍入以产生半像素内插值，将半像素值存储为非整数版本的基于半像素值和整数像素值的非圆形版本生成四分之一像素值。

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