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51. 发明申请

WO2011006003A1 NON-ZERO ROUNDING AND PREDICTION MODE SELECTION TECHNIQUES IN VIDEO ENCODING 审中-公开
标题翻译：视频编码中的非零圆和预测模式选择技术
公开(公告)号：WO2011006003A1
公开(公告)日：2011-01-13
申请号：PCT/US2010/041422
申请日：2010-07-08
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
发明人： KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
IPC分类号： H04N7/46 , H04N7/50
CPC分类号： H04N19/577
摘要： In one aspect of this disclosure, techniques are described for selecting among default weighted prediction, implicit weighted prediction, and explicit weighted prediction. In this context, techniques are also described for adding offset to prediction data, e.g., using the format of explicit weighted prediction to allow for offsets to predictive data that is otherwise determined by implicit or default weighted prediction.
摘要翻译：在本公开的一个方面，描述了用于在默认加权预测，隐式加权预测和显式加权预测之间进行选择的技术。在这种情况下，还描述了用于将偏移量添加到预测数据的技术，例如使用显式加权预测的格式来允许否则由隐含或默认加权预测确定的预测数据的偏移。

52. 发明申请

WO2011005268A2 NON-ZERO ROUNDING AND PREDICTION MODE SELECTION TECHNIQUES IN VIDEO ENCODING 审中-公开
标题翻译：视频编码中的非零圆和预测模式选择技术
公开(公告)号：WO2011005268A2
公开(公告)日：2011-01-13
申请号：PCT/US2009/050334
申请日：2009-07-10
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
发明人： KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
IPC分类号： H04N7/46 , H04N7/50
CPC分类号： H04N19/577

53. 发明申请

WO2010129883A1 VIDEO ENCODING WITH TEMPORALLY CONSTRAINED SPATIAL DEPENDENCY FOR LOCALIZED DECODING 审中-公开
标题翻译：用于本地化解码的视频编码具有临时限制的空间依赖
公开(公告)号：WO2010129883A1
公开(公告)日：2010-11-11
申请号：PCT/US2010/034064
申请日：2010-05-07
申请人： QUALCOMM INCORPORATED , TSAI, Ming-Chang , TENG, Chia-Yuan , YE, Yan
发明人： TSAI, Ming-Chang , TENG, Chia-Yuan , YE, Yan
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/55 , H04N19/132 , H04N19/136 , H04N19/162 , H04N19/17 , H04N19/176 , H04N19/61 , H04N19/70
摘要： This disclosure describes techniques for region-of-interest (ROI) encoding. In accordance with the techniques described herein, an encoding device may determine a temporal spatial dependency value for a candidate reference video block for inter-coding a current block in a video frame. The encoding device may compare the temporal spatial dependency value to a threshold value and select a coding mode for the current block based on the comparison. A decoding device may receive data defining a ROI as well as the temporal spatial dependency value and decode a video block in the ROI based at least in part on the temporal spatial dependency value. In this manner, the techniques of this disclosure may allow a video content viewer the ability to choose a ROI to watch.
摘要翻译：本公开描述了用于感兴趣区域（ROI）编码的技术。根据本文描述的技术，编码设备可以确定候选参考视频块的时间空间依赖性值，用于对视频帧中的当前块进行帧间编码。编码装置可以将时间空间相关性值与阈值进行比较，并且基于该比较选择当前块的编码模式。解码装置可以至少部分地基于时间空间依赖性值来接收定义ROI的数据以及时间空间相关性值并对ROI中的视频块进行解码。以这种方式，本公开的技术可以允许视频内容观看者选择要观看的ROI的能力。

54. 发明申请

WO2010039729A2 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：WO2010039729A2
公开(公告)日：2010-04-08
申请号：PCT/US2009/058836
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： H04N19/103 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/70
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, for example, 64x64 pixels. In one example, an apparatus includes a video encoder configured to receive a video coding unit, determine a first rate-distortion metric for encoding the video coding unit using first video blocks with sizes of 16x16 pixels, determine a second rate-distortion metric for encoding the video coding unit using second video blocks with sizes of more than 16x16 pixels, encode the video coding unit using the first video blocks when the first rate-distortion metric is less than second rate-distortion metric, and encode the video coding unit using the second video blocks when the second rate-distortion metric is less than the first rate-distortion metric.
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（例如，64×64像素）的宏块对视频流进行编码和解码。在一个示例中，一种装置包括视频编码器，其被配置为接收视频编码单元，使用尺寸为16×16像素的第一视频块确定用于对视频编码单元进行编码的第一速率 - 失真度量，确定用于编码的第二速率 - 失真度量使用尺寸大于16×16像素的第二视频块的视频编码单元，当第一速率 - 失真度量小于第二速率失真度量时，使用第一视频块对视频编码单元进行编码，并且使用当第二速率 - 失真度量小于第一速率 - 失真度量时，第二视频块。

55. 发明申请

WO2010039288A1 DIGITAL VIDEO CODING WITH INTERPOLATION FILTERS AND OFFSETS 审中-公开
标题翻译：数字视频编码与插值滤波器和偏移
公开(公告)号：WO2010039288A1
公开(公告)日：2010-04-08
申请号：PCT/US2009/043391
申请日：2009-05-08
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , MOTTA, Giovanni , YE, Yan , CHEN, Peisong
发明人： KARCZEWICZ, Marta , MOTTA, Giovanni , YE, Yan , CHEN, Peisong
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/19 , H04N19/192 , H04N19/523 , H04N19/59 , H04N19/61 , H04N19/82
摘要： This disclosure describes techniques for encoding digital video data using interpolation filters and offsets. An encoder may be configured to select interpolation filters for sub-pixel precision motion estimation based on historical interpolation results obtained for previously encoded video units, such as frames or slices. The encoder also may be configured to compute and assign offsets to the sub-pixel positions after interpolation based on differences between a reference unit and the unit to be coded. The computation and assignment of offsets may be performed before motion estimation. Motion estimation may be refined so that the motion search considers sub-pixel positions to which offsets have been previously added and evaluates sub-pixel positions that have a non-zero offset. In some cases, interpolation filter selection, offset computation, and/or refined motion estimation for a given unit may be performed in a single encoding pass.
摘要翻译：本公开描述了使用内插滤波器和偏移量对数字视频数据进行编码的技术。编码器可以被配置为基于针对先前编码的视频单元（诸如帧或片）获得的历史插值结果来选择子像素精度运动估计的内插滤波器。编码器还可以被配置为基于参考单元和要编码的单元之间的差异来计算和分配插补之后的子像素位置的偏移。可以在运动估计之前执行偏移的计算和分配。可以改进运动估计，使得运动搜索考虑先前已经添加了偏移的子像素位置，并评估具有非零偏移的子像素位置。在一些情况下，可以在单个编码过程中执行用于给定单元的内插滤波器选择，偏移计算和/或精细运动估计。

56. 发明申请

WO2009126937A1 OFFSETS AT SUB-PIXEL RESOLUTION 审中-公开
标题翻译：子像素分辨率偏移
公开(公告)号：WO2009126937A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/040279
申请日：2009-04-10
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , YE, Yan
发明人： KARCZEWICZ, Marta , YE, Yan
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50
CPC分类号： H04N19/00739 , H04N19/117 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/192 , H04N19/523 , H04N19/61 , H04N19/80 , H04N19/82
摘要： This disclosure describes techniques applied during video encoding and decoding processes. In one example, a method of encoding video data comprises calculating a plurality of offset values for a coded unit of the video data, wherein the offset values are associated with a plurality of different integer and sub-integer pixel locations, applying the offset values to predictive video blocks to generate offset predictive video blocks, and encoding video blocks of the coded unit based on the offset predictive video blocks. In another example, a method of decoding video data comprises receiving a plurality of offset values for a coded unit of the video data, wherein the offset values are associated with a plurality of different integer and sub-integer pixel locations, applying the offset values to predictive video blocks to generate offset predictive video blocks, and decoding video blocks of the coded unit based on the offset predictive video blocks.
摘要翻译：本公开描述了在视频编码和解码过程中应用的技术。在一个示例中，视频数据的编码方法包括：计算视频数据的编码单位的多个偏移值，其中偏移值与多个不同的整数和子整数像素位置相关联，将偏移值应用于预测视频块以产生偏移预测视频块，以及基于偏移预测视频块对编码单元的视频块进行编码。在另一示例中，解码视频数据的方法包括接收视频数据的经译码单元的多个偏移值，其中偏移值与多个不同的整数和子整数像素位置相关联，将偏移值应用于用于产生偏移预测视频块的预测视频块，以及基于偏移预测视频块来对经译码单元的视频块进行解码。

57. 发明申请

WO2009126928A1 SYMMETRY FOR INTERPOLATION FILTERING OF SUB-PIXEL POSITIONS IN VIDEO CODING 审中-公开
标题翻译：用于视频编码中子像素位置的插值滤波的对称性
公开(公告)号：WO2009126928A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/040267
申请日：2009-04-10
申请人： QUALCOMM INCORPORATED , YE, Yan , KARCZEWICZ, Marta
发明人： YE, Yan , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/523 , H04N19/117 , H04N19/136 , H04N19/147 , H04N19/182 , H04N19/192 , H04N19/196 , H04N19/463 , H04N19/82
摘要： This disclosure describes filtering techniques applied by an encoder and a decoder during the prediction stage of a video encoding and/or decoding process. The filtering techniques may enhance the accuracy of predictive data used during fractional interpolation, and may improve predictive data of integer blocks of pixels. There are several aspects to this disclosure, including a useful twelve -pixel filter support that may be used for interpolation, techniques that use coefficient symmetry and pixel symmetry to reduce the amount of data needed to be sent between an encoder and a decoder to configure the filter support for interpolation, and techniques for filtering data at integer pixel locations in a manner that is similar to sub-pixel interpolation. Other aspects of this disclosure concern techniques for encoding information in the bitstream to convey the type of filter used, and possibly the filter coefficients used. Predictive coding of filter coefficients is also described.
摘要翻译：本公开描述了在视频编码和/或解码过程的预测阶段期间由编码器和解码器应用的滤波技术。滤波技术可以增强在分数插值期间使用的预测数据的精度，并且可以改善整数像素块的预测数据。本公开有几个方面，包括可用于插值的有用的十二像素滤波器支持，使用系数对称性和像素对称性的技术来减少在编码器和解码器之间发送的数据量以配置用于内插的滤波器支持，以及以类似于子像素插值的方式在整数像素位置处对数据进行滤波的技术。本公开的其它方面涉及用于对位流中的信息进行编码以传送所使用的滤波器的类型以及可能使用的滤波器系数的技术。还描述了滤波器系数的预测编码。

58. 发明申请

WO2009105726A1 TWO PASS QUANTIZATION FOR CABAC CODERS 审中-公开
标题翻译： CABAC编码器的两次通过量化
公开(公告)号：WO2009105726A1
公开(公告)日：2009-08-27
申请号：PCT/US2009/034793
申请日：2009-02-20
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
发明人： KARCZEWICZ, Marta , CHEN, Peisong , YE, Yan
IPC分类号： H04N7/26
CPC分类号： H04N19/132 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/91
摘要： This disclosure describes techniques for quantizing coefficients of a video block for a video coding process that supports context-based adaptive binary arithmetic coding (CABAC). A method may comprise estimating a last non-zero coefficient of the video block, and generating a set of quantized coefficients for the video block based on an assumption that the estimated last non-zero coefficient is actually the last non-zero coefficient of the video block.
摘要翻译：本公开描述了用于量化用于支持基于上下文的自适应二进制算术编码（CABAC）的视频编码处理的视频块的系数的技术。一种方法可以包括估计视频块的最后非零系数，并且基于估计的最后非零系数实际上是视频的最后非零系数的假设来生成视频块的一组量化系数块。

59. 发明申请

WO2009089370A1 QUANTIZATION BASED ON RATE-DISTORTION MODELING FOR CABAC CODERS 审中-公开
标题翻译：基于CABAC编码器速率失真建模的量化
公开(公告)号：WO2009089370A1
公开(公告)日：2009-07-16
申请号：PCT/US2009/030465
申请日：2009-01-08
申请人： QUALCOMM INCORPORATED , KARCZEWICZ, Marta , YE, Yan
发明人： KARCZEWICZ, Marta , YE, Yan
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H04N19/13 , H04N19/132 , H04N19/147 , H04N19/176 , H04N19/18 , H04N19/19 , H04N19/91
摘要： This disclosure describes techniques for quantizing coefficients of a video block for a video coding process that supports context-based adaptive binary arithmetic coding (CABAC). A method may comprise generating a plurality of sets of quantized coefficients for the video block, wherein each of the sets of quantized coefficients is defined based on an assumption that a particular one of the coefficients of the video block corresponds to a last non-zero coefficient of the video block, estimating a plurality of costs associated with coding the video block via the CABAC, wherein the estimated costs are based respectively on different ones of the sets of quantized coefficients, and selecting a given one of the sets of quantized coefficients associated with a lowest cost.
摘要翻译：本公开描述了用于量化用于支持基于上下文的自适应二进制算术编码（CABAC）的视频编码处理的视频块的系数的技术。方法可以包括为视频块生成多组量化系数，其中基于视频块的系数中的特定一个对应于最后非零系数的假设来定义每个量化系数集合估计经由CABAC对与视频块进行编码相关联的多个成本，其中估计成本分别基于量化系数集合中的不同的成本，并且选择与所述视频块相关联的量化系数集合中的给定的一组成本最低。

60. 发明申请

WO2009052205A1 SCALABLE VIDEO CODING TECHNIQUES FOR SCALABLE BITDEPTHS 审中-公开
标题翻译：可扩展比特率的可扩展视频编码技术
公开(公告)号：WO2009052205A1
公开(公告)日：2009-04-23
申请号：PCT/US2008/080030
申请日：2008-10-15
申请人： QUALCOMM INCORPORATED , YE, Yan , KARCZEWICZ, Marta , CHUNG, Hyukjune
发明人： YE, Yan , KARCZEWICZ, Marta , CHUNG, Hyukjune
IPC分类号： H04N7/26
CPC分类号： H04N19/36 , H04N19/109 , H04N19/11 , H04N19/176 , H04N19/34 , H04N19/46 , H04N19/51
摘要： This disclosure describes video coding techniques that are executed in a bitdepth-based scalable video coding (SVC) scheme. Base layer video data and enhancement layer video data may be defined at different bitdepths. The techniques of this disclosure concern the coding of enhancement layer video blocks using a unique combination of inter-layer predictive coding modes after determining that inter-layer prediction should be used. In particular, two or more different inter-layer predictive coding modes may be utilized block corresponding to inter base layer blocks, and one of these inter-layer predictive coding modes may also be utilized for blocks corresponding to intra base layer blocks. Syntax information can be generated at the encoder and communicated with the bitstream, so that a decoder can use the proper inter-layer predictive coding mode in the decoding.
摘要翻译：本公开描述了在基于位差的可分级视频编码（SVC）方案中执行的视频编码技术。基层视频数据和增强层视频数据可以在不同的位差定义。在确定应当使用层间预测之后，本公开的技术涉及使用层间预测编码模式的唯一组合的增强层视频块的编码。特别地，可以使用对应于基本基本层块的两个或更多个不同的层间预测编码模式，并且这些层间预测编码模式中的一个也可以用于对应于内部基本层块的块。语法信息可以在编码器处产生并与比特流通信，从而解码器可以在解码中使用适当的层间预测编码模式。

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