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1. 发明授权

US09078007B2 Digital video coding with interpolation filters and offsets 有权
标题翻译：具有插值滤波器和偏移量的数字视频编码
公开(公告)号：US09078007B2
公开(公告)日：2015-07-07
申请号：US12432544
申请日：2009-04-29
申请人： Marta Karczewicz , Giovanni Motta , Yan Ye , Peisong Chen
发明人： Marta Karczewicz , Giovanni Motta , Yan Ye , Peisong Chen
IPC分类号： H04N19/147 , H04N19/61 , H04N19/117 , H04N19/136 , H04N19/19 , H04N19/192 , H04N19/82 , H04N19/523 , H04N19/59 , H04N19/80 , H04N19/577
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（例如帧或片段）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值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。

2. 发明授权

US08711930B2 Non-zero rounding and prediction mode selection techniques in video encoding 有权
标题翻译：视频编码中的非零舍入和预测模式选择技术
公开(公告)号：US08711930B2
公开(公告)日：2014-04-29
申请号：US12499998
申请日：2009-07-09
申请人： Marta Karczewicz , Peisong Chen , Yan Ye
发明人： Marta Karczewicz , Peisong Chen , Yan Ye
IPC分类号： H04N7/32
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。

3. 发明授权

US08634456B2 Video coding with large macroblocks 有权
标题翻译：具有大宏块的视频编码
公开(公告)号：US08634456B2
公开(公告)日：2014-01-21
申请号：US12562412
申请日：2009-09-18
申请人： Peisong Chen , Yan Ye , Marta Karczewicz
发明人： Peisong Chen , Yan Ye , Marta Karczewicz
IPC分类号： H04N7/12 , H04N11/02
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 16×16 pixels, for example, 64×64 pixels. In one example, an apparatus includes a video encoder configured to encode a video block having a size of more than 16×16 pixels, generate block-type syntax information that indicates the size of the block, and generate a coded block pattern value for the encoded block, wherein the coded block pattern value indicates whether the encoded block includes at least one non-zero coefficient. The encoder may set the coded block pattern value to zero when the encoded block does not include at least one non-zero coefficient or set the coded block pattern value to one when the encoded block includes a non-zero coefficient.
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，被配置为对具有大于16×16像素的大小的视频块进行编码，生成指示块大小的块类型语法信息，并生成用于编码块，其中编码块模式值指示编码块是否包括至少一个非零系数。当编码块不包括至少一个非零系数时，编码器可以将编码块模式值设置为零，或者当编码块包括非零系数时将编码块模式值设置为1。

4. 发明授权

US08483285B2 Video coding using transforms bigger than 4×4 and 8×8 有权
标题翻译：使用大于4×4和8×8的变换的视频编码
公开(公告)号：US08483285B2
公开(公告)日：2013-07-09
申请号：US12508434
申请日：2009-07-23
申请人： Yan Ye , Peisong Chen , Marta Karczewicz
发明人： Yan Ye , Peisong Chen , Marta Karczewicz
IPC分类号： H04N11/02
CPC分类号： H04N19/44 , H04N19/122 , H04N19/132 , H04N19/176 , H04N19/46 , H04N19/60 , H04N19/61 , H04N19/70
摘要： In a video processing system, a method and system for applying transforms larger than 8×8 and non-rectangular transforms, and generating transform size syntax elements indicative of the transforms for video decoding are provided. The transform size syntax element may be generated by an encoder based on a prediction block size of a video block and the contents of the video block. Further, the transform size syntax element may be generated according to a set of rules to select from 4×4, 8×8, and larger transform sizes during an encoding process. A decoder may perform an inverse transform based on the transform size syntax element and the rules used by the encoder. The transform size syntax element may be transmitted to the decoder as part of the encoded video bitstream.
摘要翻译：在视频处理系统中，提供了一种用于应用大于8×8和非矩形变换的变换以及生成表示用于视频解码的变换的变换大小语法元素的方法和系统。转换大小语法元素可以由编码器基于视频块的预测块大小和视频块的内容来生成。此外，可以根据一组规则来生成变换大小语法元素，以在编码处理期间从4×4,8×8和更大的变换大小进行选择。解码器可以基于变换大小语法元素和编码器使用的规则执行逆变换。变换大小语法元素可以作为编码视频比特流的一部分被发送到解码器。

5. 发明申请

US20100086032A1 VIDEO CODING WITH LARGE MACROBLOCKS 有权
标题翻译：视频编码与大型MACROBLOCKS
公开(公告)号：US20100086032A1
公开(公告)日：2010-04-08
申请号：US12562504
申请日：2009-09-18
申请人： Peisong Chen , Yan Ye , Marta Karczewicz
发明人： Peisong Chen , Yan Ye , Marta Karczewicz
IPC分类号： H04N7/12
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 16×16 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 16×16 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，一种装置包括：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，并且生成用于编码单元，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。

6. 发明授权

US08902972B2 Rate-distortion quantization for context-adaptive variable length coding (CAVLC) 有权
标题翻译：用于上下文自适应可变长度编码（CAVLC）的速率失真量化
公开(公告)号：US08902972B2
公开(公告)日：2014-12-02
申请号：US12338838
申请日：2008-12-18
申请人： Marta Karczewicz , Peisong Chen , Yan Ye
发明人： Marta Karczewicz , Peisong Chen , Yan Ye
IPC分类号： H04N7/26 , H04N19/126 , H04N19/124
CPC分类号： H04N19/124 , H04N19/126
摘要： In general, this disclosure provides techniques for quantization of the coefficients of video blocks in a manner that can achieve a desirable balance of rate and distortion. The described techniques may analyze a plurality of quantization levels associated with each individual coefficient to select the quantization level for the individual coefficients that results in a lowest coding cost. Since CAVLC does not encode each coefficient independently, the techniques may compute the coding costs for each of the candidate quantization levels associated with the individual coefficients based on quantization levels selected for previously quantized coefficients and estimated (or predicted) quantization levels for subsequent coefficients of a coefficient vector. The quantization levels for each of the coefficients are selected based on computed coding costs to obtain a set of quantized coefficients that minimize a rate-distortion model.
摘要翻译：通常，本公开提供了以可以实现速率和失真的期望平衡的方式来量化视频块的系数的技术。所描述的技术可以分析与每个单独系数相关联的多个量化级别，以选择导致最低编码成本的各个系数的量化级别。由于CAVLC不独立地对每个系数进行编码，所以这些技术可以基于针对先前量化的系数选择的量化级别和针对先前量化的系数的估计（或预测的）量化级别计算与各个系数相关联的每个候选量化级别的编码成本，系数向量。基于计算的编码成本来选择每个系数的量化级别，以获得最小化速率 - 失真模型的一组量化系数。

7. 发明授权

US08619856B2 Video coding with large macroblocks 有权
标题翻译：具有大宏块的视频编码
公开(公告)号：US08619856B2
公开(公告)日：2013-12-31
申请号：US12562438
申请日：2009-09-18
申请人： Peisong Chen , Yan Ye , Marta Karczewicz
发明人： Peisong Chen , Yan Ye , Marta Karczewicz
IPC分类号： H04N7/12
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 16×16 pixels, for example, 64×64 pixels. Each macroblock may be partitioned into two or more partitions, and two or more of the partitions may be encoded using different modes. In one example, an apparatus includes a video encoder configured to receive a video block having a size of more than 16×16 pixels, partition the block into partitions, encode one of the partitions using a first encoding mode, encode another of the partitions using a second encoding mode different from the first encoding mode, and generate block-type syntax information that indicates the size of the block and identifies the partitions and the encoding modes used to encode the partitions.
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。每个宏块可以被划分成两个或更多个分区，并且可以使用不同的模式对两个或更多个分区进行编码。在一个示例中，一种装置包括：视频编码器，被配置为接收尺寸大于16×16像素的视频块，将块划分成分区，使用第一编码模式对其中一个分区进行编码，使用与第一编码模式不同的第二编码模式，并生成指示块大小并识别用于对分区进行编码的分区和编码模式的块型语法信息。

8. 发明申请

US20110007802A1 NON-ZERO ROUNDING AND PREDICTION MODE SELECTION TECHNIQUES IN VIDEO ENCODING 有权
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：US20110007802A1
公开(公告)日：2011-01-13
申请号：US12499990
申请日：2009-07-09
申请人： Marta Karczewicz , Peisong Chen , Yan Ye
发明人： Marta Karczewicz , Peisong Chen , Yan Ye
IPC分类号： H04N7/46
CPC分类号： H04N19/577 , H04N19/105 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/573 , H04N19/61 , H04N19/91
摘要： In one aspect of this disclosure, rounding adjustments to bi-directional predictive data may be purposely eliminated to provide predictive data that lacks any rounding bias. In this case, rounded and unrounded predictive data may both be considered in a rate-distortion analysis to identify the best data for prediction of a given video block. In another 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，可以有意地消除对双向预测数据的舍入调整，以提供缺少任何舍入偏差的预测数据。在这种情况下，可以在速率失真分析中考虑四舍五入和未包围的预测数据，以识别用于预测给定视频块的最佳数据。在本公开的另一方面，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。

9. 发明申请

US20110007799A1 NON-ZERO ROUNDING AND PREDICTION MODE SELECTION TECHNIQUES IN VIDEO ENCODING 有权
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：US20110007799A1
公开(公告)日：2011-01-13
申请号：US12499998
申请日：2009-07-09
申请人： Marta Karczewicz , Peisong Chen , Yan Ye
发明人： Marta Karczewicz , Peisong Chen , Yan Ye
IPC分类号： H04N7/32
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。

10. 发明申请

US20100086029A1 VIDEO CODING WITH LARGE MACROBLOCKS 有权
标题翻译：视频编码与大型MACROBLOCKS
公开(公告)号：US20100086029A1
公开(公告)日：2010-04-08
申请号：US12562412
申请日：2009-09-18
申请人： Peisong Chen , Yan Ye , Marta Karczewicz
发明人： Peisong Chen , Yan Ye , Marta Karczewicz
IPC分类号： H04N7/12
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 16×16 pixels, for example, 64×64 pixels. In one example, an apparatus includes a video encoder configured to encode a video block having a size of more than 16×16 pixels, generate block-type syntax information that indicates the size of the block, and generate a coded block pattern value for the encoded block, wherein the coded block pattern value indicates whether the encoded block includes at least one non-zero coefficient. The encoder may set the coded block pattern value to zero when the encoded block does not include at least one non-zero coefficient or set the coded block pattern value to one when the encoded block includes a non-zero coefficient.
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来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，被配置为对具有大于16×16像素的大小的视频块进行编码，生成指示块大小的块类型语法信息，并生成用于编码块，其中编码块模式值指示编码块是否包括至少一个非零系数。当编码块不包括至少一个非零系数时，编码器可以将编码块模式值设置为零，或者当编码块包括非零系数时将编码块模式值设置为1。

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