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31. 发明申请

WO2012075193A1 CODING THE POSITION OF A LAST SIGNIFICANT COEFFICIENT WITHIN A VIDEO BLOCK BASED ON A SCANNING ORDER FOR THE BLOCK IN VIDEO CODING 审中-公开
标题翻译：根据视频编码中的块的扫描顺序编码视频块中的最后一个重要系数的位置
公开(公告)号：WO2012075193A1
公开(公告)日：2012-06-07
申请号：PCT/US2011/062715
申请日：2011-11-30
申请人： QUALCOMM Incorporated , SOLE ROJALS, Joel , COBAN, Muhammed Zeyd , ZHENG, Yunfei , JOSHI, Rajan L. , KARCZEWICZ, Marta
发明人： SOLE ROJALS, Joel , COBAN, Muhammed Zeyd , ZHENG, Yunfei , JOSHI, Rajan L. , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50 , H03M7/40
CPC分类号： H04N19/13 , H03M7/30 , H03M7/40 , H03M7/4018 , H03M7/6035 , H04N19/176 , H04N19/436 , H04N19/61 , H04N19/70 , H04N19/91
摘要： In one example, 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 x- and y-coordinates that indicate a position of a last non-zero coefficient within the block according to a scanning order associated with the block when the scanning order comprises a first scanning order, and code interchanged x- and y-coordinates that indicate the position of the last non-zero coefficient within the block according to the scanning order when the scanning order comprises a second scanning order, wherein the second scanning order is different than the first scanning order.
摘要翻译：在一个示例中，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，其中所述装置包括视频编码器，其被配置为编码指示最后非零位置的x坐标和y坐标当扫描顺序包括第一扫描顺序时，根据与块相关联的扫描顺序，块内的系数，以及根据扫描指示块内的最后非零系数的位置的代码交换的x和y坐标当扫描顺序包括第二扫描顺序时，其中第二扫描顺序不同于第一扫描顺序。

32. 发明申请

WO2012068021A1 PARALLEL CONTEXT CALCULATION IN VIDEO CODING 审中-公开
标题翻译：并行计算在视频编码
公开(公告)号：WO2012068021A1
公开(公告)日：2012-05-24
申请号：PCT/US2011/060619
申请日：2011-11-14
申请人： QUALCOMM Incorporated , COBAN, Muhammed Zeyd , ZHENG, Yunfei , SOLE ROJALS, Joel , JOSHI, Rajan L. , KARCZEWICZ, Marta
发明人： COBAN, Muhammed Zeyd , ZHENG, Yunfei , SOLE ROJALS, Joel , JOSHI, Rajan L. , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/436 , H04N19/102 , H04N19/129 , H04N19/13 , H04N19/134 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/463
摘要： In one example, a method for coding video data includes identifying a scan path for scanning significance information associated with a quantized transform coefficient. The method also includes determining a context support neighborhood for entropy coding the significance information associated with the quantized transform coefficient, wherein the context support neighborhood excludes one or more context support elements that are located in the scan path. The method also includes coding the significance information using the modified context support neighborhood.
摘要翻译：在一个示例中，用于编码视频数据的方法包括识别用于扫描与量化变换系数相关联的有效信息的扫描路径。该方法还包括确定用于熵编码与量化变换系数相关联的重要性信息的上下文支持邻域，其中上下文支持邻域排除位于扫描路径中的一个或多个上下文支持元素。该方法还包括使用修改的上下文支持邻域对重要性信息进行编码。

33. 发明申请

WO2012045037A3 ZERO-OUT OF HIGH FREQUENCY COEFFICIENTS AND ENTROPY CODING RETAINED COEFFICIENTS USING A JOINT CONTEXT MODEL 审中-公开
标题翻译：高频系数零OUT和熵编码未分配利润系数使用联合上下文模型
公开(公告)号：WO2012045037A3
公开(公告)日：2012-05-18
申请号：PCT/US2011054418
申请日：2011-09-30
申请人： QUALCOMM INC , 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：本发明描述用于使用在具有不同尺寸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，联合上下文模型可具有16×16的第二大小的变换具有32×32的第一尺寸单元和变换单元之间共享。执行熵使用联合上下文模型之间共享变换具有不同尺寸的可降低的必要存储上下文和概率的存储器的量，并减少维护的上下文模型的计算成本单位进行编码。在一个示例中，联合上下文模型可具有第一尺寸具有系数置零，以产生具有所述第二尺寸的保留系数块和变换具有第二大小为单位变换单元之间共享。在另一个示例中，联合上下文模型可以在具有第一大小的变换单元和具有第二大小的变换单元之间共享。

34. 发明申请

WO2012045037A2 ZERO-OUT OF HIGH FREQUENCY COEFFICIENTS AND ENTROPY CODING RETAINED COEFFICIENTS USING A JOINT CONTEXT MODEL 审中-公开
标题翻译：使用联合语境模型对高频系数和熵编码保留系数进行归零
公开(公告)号：WO2012045037A2
公开(公告)日：2012-04-05
申请号：PCT/US2011/054418
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的变换单元和具有第二大小为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尺寸的系数被清零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之间的变换单元之间共享。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。

35. 发明申请

WO2012009566A2 ENTROPY CODING OF BINS ACROSS BIN GROUPS USING VARIABLE LENGTH CODEWORDS 审中-公开
标题翻译：使用可变长度编码器对BIN组进行熵编码
公开(公告)号：WO2012009566A2
公开(公告)日：2012-01-19
申请号：PCT/US2011/044060
申请日：2011-07-14
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , JOSHI, Rajan, L.
发明人： KARCZEWICZ, Marta , JOSHI, Rajan, L.
IPC分类号： H04N7/26
CPC分类号： H03M7/40 , H04N19/13
摘要： This disclosure describes techniques for entropy coding bins representing video data symbols with reduced bottlenecks in the entropy coding process. The techniques of this disclosure enable an entropy coding device to perform entropy coding of bins grouped into bin subsets from across different bin groups, e.g., context groups or probability groups, using variable length codewords. In one example, the bins may be assigned to context groups with no context dependencies between the context groups. In another example, the bins may be assigned to probability groups associated with different intervals of probability states. The bins may be grouped into the bin subsets according to determined formations of the bin subsets. In this way, the entropy coding device may reduce an amount of bin and codeword buffering by efficiently forming the bin subsets and designing variable length codewords for each of the bin subsets.
摘要翻译：本公开描述了用于熵编码表示具有熵编码处理中的瓶颈的视频数据符号的盒的技术。本公开的技术使得熵编码设备能够使用可变长度码字来对来自跨不同的存储体组（例如，上下文组或概率组）的bin子集进行熵编码。在一个示例中，可以将这些分配给上下文组，而上下文组之间没有上下文依赖性。在另一个示例中，可以将该箱分配给与不同的概率状态间隔相关联的概率组。根据箱子子集的确定的形式，箱可以被分组到箱子子集中。以这种方式，熵编码装置可以通过有效地形成bin子集并且为每个bin子集设计可变长度码字来减少bin和码字缓冲量。

36. 发明申请

WO2011163629A1 INCLUSION OF SWITCHED INTERPOLATION FILTER COEFFICIENTS IN A COMPRESSED BIT-STREAM 审中-公开
标题翻译：在压缩比特流中的开关插入滤波器系数的包含
公开(公告)号：WO2011163629A1
公开(公告)日：2011-12-29
申请号：PCT/US2011/041892
申请日：2011-06-24
申请人： QUALCOMM INCORPORATED , JOSHI, Rajan, L. , KARCZEWICZ, Marta , PANCHAL, Rahul, P.
发明人： JOSHI, Rajan, L. , KARCZEWICZ, Marta , PANCHAL, Rahul, P.
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/523 , H04N19/117 , H04N19/172 , H04N19/176 , H04N19/70 , H04N19/82
摘要： In one example, an encoder may apply a plurality of pre-defined interpolation filters to units of video data, such as frames of reference video, in order to generate a plurality of different interpolated prediction data. The encoder may also at times determine that a new interpolation filter or set of interpolation filters might improve coding quality by either improving video compression or improving reconstructed image quality. The encoder may also signal to a video decoder whether one of the pre-defined interpolation filters was used or a new set of interpolation filters was used. The encoder may also signal to a video decoder whether to continue using the new set of interpolation filters, or whether to revert back to using the pre-defined set of interpolation filters. A video decoder can decode video data based on data received from the video encoder.
摘要翻译：在一个示例中，编码器可以将多个预定义的内插滤波器应用于诸如参考视频帧的视频数据的单元，以便生成多个不同的内插预测数据。编码器还可以有时确定新的内插滤波器或内插滤波器组可以通过改进视频压缩或改善重建的图像质量来提高编码质量。编码器还可以向视频解码器发信号通知是否使用了预定义的内插滤波器之一或使用了一组新的内插滤波器。编码器还可以向视频解码器发信号通知是否继续使用新的内插滤波器组，或者是否还原回使用预定义的内插滤波器组。视频解码器可以基于从视频编码器接收的数据来解码视频数据。

37. 发明申请

WO2011005578A3 16-POINT TRANSFORM FOR MEDIA DATA CODING 审中-公开
公开(公告)号：WO2011005578A3
公开(公告)日：2011-01-13
申请号：PCT/US2010/039676
申请日：2010-06-23
申请人： QUALCOMM Incorporated , REZNIK, Yuriy , JOSHI, Rajan L. , KARCZEWICZ, Marta
发明人： REZNIK, Yuriy , JOSHI, Rajan L. , KARCZEWICZ, Marta
IPC分类号： G06F17/14 , H04N7/26
摘要： In general, techniques are described for implementing a 16-point inverse discrete cosine transform (IDCT) that is capable of applying multiple IDCTs of different sizes. For example, an apparatus comprising a 16-point inverse discrete cosine transform of type II (IDCT-II) unit may implement these techniques. The 16-point IDCT-II unit performs these IDCTs-II of different sizes to transform data from a spatial to a frequency domain. The 16-point IDCT-II unit includes an 8-point IDCT-II unit that performs one of the IDCTs-II of size 8 and a first 4-point IDCT-II unit that performs one of the IDCTs-II of size 4. The 8-point IDCT-II unit includes the first 4-point DCT-II unit. The 16-point IDCT-II unit also comprises an inverse 8-point DCT-IV unit that includes a second 4-point IDCT-II unit and a third 4-point IDCT-II unit. Each of the second and third 4-point IDCT-II units performs one of the IDCTs-II of size 4.

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