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61. 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。

62. 发明申请

WO2012116095A1 MULTI-METRIC FILTERING 审中-公开
标题翻译：多重滤波
公开(公告)号：WO2012116095A1
公开(公告)日：2012-08-30
申请号：PCT/US2012/026166
申请日：2012-02-22
申请人： QUALCOMM Incorporated , CHONG, In Suk , KARCZEWICZ, Marta
发明人： CHONG, In Suk , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/117 , H04N7/26255 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/42 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/82 , H04N19/85 , H04N19/96
摘要： A filter unit of a video encoder or video decoder can determine a first metric for a group of pixels within a block of pixels based on a comparison of a subset of the pixels in the block to other pixels in the block; determine a filter based on the first metric; and generate a filtered image by applying the filter to the group of pixels. The subset of pixels can be selected to not include pixels on the boundary of the block of pixels.
摘要翻译：视频编码器或视频解码器的滤波器单元可以基于块中的像素的子集与块中的其他像素的比较来确定像素块内的像素组的第一度量; 基于第一个度量确定一个过滤器; 并通过将滤波器应用于像素组来生成滤波图像。可以选择像素的子集以不包括像素块的边界上的像素。

63. 发明申请

WO2012102927A1 PERFORMING MOTION VECTOR PREDICTION FOR VIDEO CODING 审中-公开
标题翻译：执行视频编码运动矢量预测
公开(公告)号：WO2012102927A1
公开(公告)日：2012-08-02
申请号：PCT/US2012/021742
申请日：2012-01-18
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , CHEN, Peisong , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , CHEN, Peisong , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/68
CPC分类号： H04N19/61 , H04N19/46 , H04N19/51 , H04N19/52 , H04N19/70 , H04N19/895
摘要： In general, techniques are described for performing motion vector prediction for video coding. An apparatus comprising a motion compensation unit may implement the techniques. The motion compensation unit determines spatial candidate motion vectors (MVPs) associated with a current portion of a video frame and prunes the spatial candidate motion vectors to remove duplicates without removing a temporal candidate motion vector. The motion compensation unit selects one of the temporal candidate motion vector or one of the spatial candidate motion vectors remaining after pruning as a selected candidate motion vector based on a motion vector predictor (MVP) index signaled in a bitstream and performs motion compensation based on the selected candidate motion vector.
摘要翻译：通常，描述了用于执行视频编码的运动矢量预测的技术。包括运动补偿单元的装置可以实现这些技术。运动补偿单元确定与视频帧的当前部分相关联的空间候选运动矢量（MVP），并修剪空间候选运动矢量以去除重复，而不去除时间候选运动矢量。运动补偿单元基于在比特流中发信号的运动矢量预测器（MVP）索引，选择剪枝之后剩余的时间候选运动矢量或空间候选运动矢量中的一个作为选择的候选运动矢量，并基于选择的候选运动矢量。

64. 发明申请

WO2012087713A1 MODE DEPENDENT SCANNING OF COEFFICIENTS OF A BLOCK OF VIDEO DATA 审中-公开
标题翻译：视频数据块的系数的模式相关扫描
公开(公告)号：WO2012087713A1
公开(公告)日：2012-06-28
申请号：PCT/US2011/064964
申请日：2011-12-14
申请人： QUALCOMM INCORPORATED , ZHENG, Yunfei , COBAN, Muhammed Zeyd , SOLE ROJALS, Joel , KARCZEWICZ, Marta
发明人： ZHENG, Yunfei , COBAN, Muhammed Zeyd , SOLE ROJALS, Joel , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/157 , H04N19/129 , H04N19/134 , H04N19/146 , H04N19/176 , H04N19/196 , H04N19/46
摘要： This disclosure describes apparatuses and methods of encoding coefficients associated with a block of video data. In one example, a method may comprise selecting a scan order for the coefficients based on an intra coding mode used to predict the block of video data and a transform block size used in transforming the block of video data, and generating a syntax element to communicate the selected scan order for the block of video data.
摘要翻译：本公开描述了与视频数据块相关联的编码系数的装置和方法。在一个示例中，方法可以包括基于用于预测视频数据块的帧内编码模式和用于变换视频数据块的变换块大小，选择用于系数的扫描顺序，以及生成用于通信的语法元素所选择的视频数据块的扫描顺序。

65. 发明申请

WO2012078748A1 ADAPTIVE SUPPORT FOR INTERPOLATING VALUES OF SUB-PIXELS FOR VIDEO CODING 审中-公开
标题翻译：用于插入视频编码的子像素值的自适应支持
公开(公告)号：WO2012078748A1
公开(公告)日：2012-06-14
申请号：PCT/US2011/063730
申请日：2011-12-07
申请人： QUALCOMM INCORPORATED , PANCHAL, Rahul, P. , KARCZEWICZ, Marta , CHEN, Peisong
发明人： PANCHAL, Rahul, P. , KARCZEWICZ, Marta , CHEN, Peisong
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/523 , H04N19/117 , H04N19/154 , H04N19/182 , H04N19/80
摘要： This disclosure describes techniques for calculating values of sub-integer pixels applied by an encoder and a decoder to encode blocks of video data. In one example, a video encoder is configured to receive values for a full integer pixel positions of a reference sample, apply an interpolation filter to a first set of the values for the full integer pixel positions to calculate a value for a first sub-integer pixel of one of the full integer pixel positions, apply the interpolation filter to a second, different set of the values for the full integer pixel positions to calculate a value for a second, different sub- integer pixel of the one of the full integer pixel positions, encode a current block of pixels using a motion vector that points to one of the first sub-integer pixel and the second sub-integer pixel.
摘要翻译：本公开描述了用于计算由编码器和解码器应用的子整数像素的值以编码视频数据块的技术。在一个示例中，视频编码器被配置为接收参考样本的整个整数像素位置的值，将内插滤波器应用于全整数像素位置的值的第一组，以计算第一子整数的值将全部整数像素位置之一的像素应用于完整整数像素位置的第二个不同的值组，以计算整数像素之一的第二个不同的子整数像素的值位置，使用指向第一子整数像素和第二子整数像素之一的运动矢量对当前像素块进行编码。

66. 发明申请

WO2012075181A1 SEPARATELY CODING THE POSITION OF A LAST SIGNIFICANT COEFFICIENT OF A VIDEO BLOCK IN VIDEO CODING 审中-公开
标题翻译：在视频编码中单独编码视频块的最新重要系数的位置
公开(公告)号：WO2012075181A1
公开(公告)日：2012-06-07
申请号：PCT/US2011/062700
申请日：2011-11-30
申请人： QUALCOMM INCORPORATED , SOLE ROJALS, Joel , JOSHI, Rajan L. , KARCZEWICZ, Marta
发明人： SOLE ROJALS, Joel , JOSHI, Rajan L. , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50 , H03M7/40
CPC分类号： H04N19/00157 , H03M7/4018 , H03M7/4075 , H03M7/6035 , H04N19/129 , H04N19/13 , H04N19/14 , H04N19/176 , H04N19/18 , H04N19/436 , H04N19/61 , H04N19/70
摘要： An apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, wherein the apparatus includes a video coder configured to code information that identifies a position of a last nonzero coefficient within the block according to a scanning order associated with the block prior to coding information that identifies positions of other nonzero coefficients within the block, including at least one of the following: coding a one-dimensional position within the block that identifies the position of the last nonzero coefficient; coding a two-dimensional position within the block that identifies the position of the last nonzero coefficient, and coding a flag that indicates whether the last nonzero coefficient is located within a range of positions within the block, and coding the one-dimensional position when the last nonzero coefficient is located within the range, and otherwise coding the two-dimensional position.
摘要翻译：公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置，其中该装置包括视频编码器，其被配置为根据与该数据块相关联的扫描顺序来识别块内最后一个非零系数的位置的信息编码信息之前的块，其识别所述块内的其他非零系数的位置，包括以下中的至少一个：对所述块内的一维位置进行编码，所述一维位置标识所述最后非零系数的位置; 编码所述块内的二维位置，其识别所述最后非零系数的位置，以及编码指示所述最后非零系数是否位于所述块内的位置范围内的标志，以及当所述一维位置在最后一个非零系数位于该范围内，否则编码二维位置。

67. 发明申请

WO2012074772A1 VIDEO CODING USING FUNCTION-BASED SCAN ORDER FOR TRANSFORM COEFFICIENTS 审中-公开
标题翻译：使用基于功能的扫描序列进行变换系统的视频编码
公开(公告)号：WO2012074772A1
公开(公告)日：2012-06-07
申请号：PCT/US2011/061222
申请日：2011-11-17
申请人： QUALCOMM INCORPORATED , WANG, Xianglin , JOSHI, Rajan, L. , COBAN, Muhammed, Zeyd , KARCZEWICZ, Marta
发明人： WANG, Xianglin , JOSHI, Rajan, L. , COBAN, Muhammed, Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/14 , H04N19/129 , H04N19/176 , H04N19/196 , H04N19/197
摘要： Video coding devices and methods use a function-based definition of scan order to scan transform coefficients associated with a block of residual video data. A video coder may define a scan order for coefficients based on a predefined function and one or more parameter values. A video encoder may use a function-based scan order to scan a two-dimensional array of coefficients to produce a one-dimensional array of coefficients for use in producing encoded video data. The video encoder may signal the parameters to a video decoder, or the video decoder may infer one or more of the parameters. The video decoder may use the function-based scan order to scan a one-dimensional array of coefficients to reproduce the two-dimensional array of coefficients for use in producing decoded video data. In each case, the scan order may vary according to the parameter values, which may include block size, orientation, and/or orientation strength.
摘要翻译：视频编码设备和方法使用扫描顺序的基于功能的定义来扫描与一组残留视频数据相关联的变换系数。视频编码器可以基于预定义的功能和一个或多个参数值来定义系数的扫描顺序。视频编码器可以使用基于功能的扫描顺序来扫描系数的二维阵列以产生用于产生编码视频数据的一维系数阵列。视频编码器可以将参数发送给视频解码器，或者视频解码器可以推断一个或多个参数。视频解码器可以使用基于功能的扫描顺序来扫描系数的一维阵列，以再现用于产生解码视频数据的二维系数阵列。在每种情况下，扫描顺序可以根据可能包括块大小，取向和/或取向强度的参数值而变化。

68. 发明申请

WO2012045041A1 ENTROPY CODING COEFFICIENTS USING A JOINT CONTEXT MODEL 审中-公开
标题翻译：使用联合语境模型进行熵编码系统
公开(公告)号：WO2012045041A1
公开(公告)日：2012-04-05
申请号：PCT/US2011/054425
申请日：2011-09-30
申请人： QUALCOMM INCORPORATED , SOLE ROJALS, Joel , JOSHI, Rajan, L. , KARCZEWICZ, Marta
发明人： SOLE ROJALS, Joel , JOSHI, Rajan, L. , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/13 , H04N19/132 , H04N19/14 , H04N19/146 , H04N19/149 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/625 , H04N19/64 , H04N19/91
摘要： This disclosure describes techniques for performing entropy encoding and decoding of video coefficients using a joint context model shared between transform units having different sizes. For example, the joint context model may be shared between transform units having a first size of 32x32 and transform units having a second size of 16x16. Performing entropy coding using a joint context model shared between transform units having different sizes may reduce an amount of memory necessary to store contexts and probabilities, and reduce computational costs of maintaining context models. In one example, the joint context model may be shared between transform units having the first size with coefficients zeroed out to generate a retained coefficient block having the second size and transform units having the second size. In another example, the joint context model may be shared between transform units having the first size and transform units having the second size.
摘要翻译：本公开描述了使用在具有不同大小的变换单元之间共享的联合上下文模型来执行视频系数的熵编码和解码的技术。例如，联合上下文模型可以在第一大小为32×32的变换单元和第二大小为16×16的变换单元之间共享。使用具有不同大小的变换单元之间共享的联合上下文模型执行熵编码可以减少存储上下文和概率所需的存储量，并且减少维护上下文模型的计算成本。在一个示例中，联合上下文模型可以在具有第一大小的变换单元之间共享以产生具有第二尺寸的保留系数块和具有第二尺寸的变换单元。在另一示例中，联合上下文模型可以在具有第一尺寸的变换单元和具有第二尺寸的变换单元之间共享。

69. 发明申请

WO2012030433A1 MULTI-INPUT ADAPTIVE FILTER BASED ON COMBINATION OF SUM-MODIFIED LAPLACIAN FILTER INDEXING AND QUADTREE PARTITIONING 审中-公开
标题翻译：基于改进的LAPLACIAN滤波器索引和四分法分割的组合的多输入自适应滤波器
公开(公告)号：WO2012030433A1
公开(公告)日：2012-03-08
申请号：PCT/US2011/043445
申请日：2011-07-08
申请人： QUALCOMM INCORPORATED , CHONG, In, Suk , KARCZEWICZ, Marta , CHIEN, Wei-Jung
发明人： CHONG, In, Suk , KARCZEWICZ, Marta , CHIEN, Wei-Jung
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/439 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/42 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/85 , H04N19/96
摘要： Filtering is applied at a video encoder, and filter information is encoded in the bitstream to enable a video decoder to identify the filtering that was applied at the video encoder. The video decoder receives encoded video data that includes the filter information, decodes the video data, and applies filtering based on the filtering information. In this way, the decoder applies the same filtering that was applied at the encoder. Video can be encoded utilizing multiple filters with Laplacian filter indexing for multiple inputs for coded units partitioned using a quadtree partitioning scheme.
摘要翻译：过滤应用于视频编码器，并且滤波器信息被编码在比特流中以使视频解码器能够识别在视频编码器处应用的滤波。视频解码器接收包括滤波器信息的编码视频数据，对视频数据进行解码，并根据滤波信息应用滤波。以这种方式，解码器应用在编码器处应用的相同的滤波。可以使用具有拉普拉斯滤波器索引的多个滤波器对视频进行编码，用于使用四叉树分区方案分割的编码单元的多个输入。

70. 发明申请

WO2012024080A1 LOW COMPLEXITY ADAPTIVE FILTER 审中-公开
标题翻译：低复杂自适应滤波器
公开(公告)号：WO2012024080A1
公开(公告)日：2012-02-23
申请号：PCT/US2011/046232
申请日：2011-08-02
申请人： QUALCOMM INCORPORATED , CHIEN, Wei-Jung , CHONG, In Suk , KARCZEWICZ, Marta
发明人： CHIEN, Wei-Jung , CHONG, In Suk , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/82 , H04N19/117 , H04N19/14 , H04N19/192 , H04N19/46 , H04N19/61 , H04N19/96
摘要： An interim filter determined for a previous series of video blocks can be applied to a current series of video blocks to determine an interim filter map for the current series of video blocks. Based on the interim filter map, a decoding filter can be determined. By applying the decoding filter to the current series of video blocks, a decoding filtering map can be determined. Based on CUs identified as having filtering off by the decoding filtering map, an interim filter for the current series of video blocks can be determined. The decoding filter and decoding filtering map can be transmitted to a decoder, while the interim filter and interim filter map may not be transmitted to a decoder. The interim filter for the current series of video blocks can be used to generate an interim filter map for a next series of video blocks.
摘要翻译：为先前的一系列视频块确定的中间滤波器可以应用于当前系列的视频块，以确定当前系列视频块的临时滤波器图。基于临时滤波器图，可以确定解码滤波器。通过将解码滤波器应用于当前系列视频块，可以确定解码滤波图。基于被识别为通过解码滤波图进行滤波的CU，可以确定当前系列视频块的临时滤波器。解码滤波器和解码滤波图可以被发送到解码器，而中间滤波器和中间滤波器图可以不被发送到解码器。用于当前系列视频块的临时滤波器可用于为下一系列视频块生成临时滤波器图。

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