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91. 发明授权

US08971412B2 Advanced interpolation techniques for motion compensation in video coding 有权
标题翻译：高级插值技术用于视频编码中的运动补偿
公开(公告)号：US08971412B2
公开(公告)日：2015-03-03
申请号：US12420256
申请日：2009-04-08
申请人： Yan Ye , Peisong Chen , Marta Karczewicz
发明人： Yan Ye , Peisong Chen , Marta Karczewicz
IPC分类号： H04N7/12 , H04N11/02 , H04N19/136 , H04N19/117 , H04N19/51 , H04N19/192 , H04N19/147 , H04N19/182 , H04N19/82
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。

92. 发明授权

US08665959B2 Block and partition signaling techniques for video coding 有权
标题翻译：用于视频编码的块和分区信令技术
公开(公告)号：US08665959B2
公开(公告)日：2014-03-04
申请号：US12979876
申请日：2010-12-28
申请人： Peisong Chen , Marta Karczewicz , Wei-Jung Chien , Xianglin Wang
发明人： Peisong Chen , Marta Karczewicz , Wei-Jung Chien , Xianglin Wang
IPC分类号： H04N7/12
CPC分类号： H04N19/46 , H04N19/105 , H04N19/70
摘要： A video block syntax element indicates whether all of the partitions of a video block are predicted based on a same reference list and no greater than quarter-pixel accuracy is used. If the video block syntax element is set, partition-level signaling of the reference lists is avoided. If the video block syntax element is not set, partition-level signaling of the reference lists occurs. If the video block syntax element is set, partition-level syntax elements may be used for each of the partitions of the video block, wherein the partition-level syntax elements each identify one of the reference lists and motion vector accuracy for a given one of the partitions.
摘要翻译：视频块语法元素指示基于相同的参考列表来预测视频块的所有分区，并且使用不大于四分之一像素的精度。如果设置了视频块语法元素，则避免了引用列表的分区级信令。如果未设置视频块语法元素，则发生引用列表的分区级信令。如果设置了视频块语法元素，则可以对视频块的每个分区使用分区级语法元素，其中分区级语法元素各自识别参考列表中的一个和运动矢量精度分区。

93. 发明授权

US08503527B2 Video coding with large macroblocks 有权
公开(公告)号：US08503527B2
公开(公告)日：2013-08-06
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 , H04N11/02
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.

94. 发明申请

US20130003849A1 VIDEO CODING USING ADAPTIVE MOTION VECTOR RESOLUTION 审中-公开
标题翻译：使用自适应运动矢量分辨率进行视频编码
公开(公告)号：US20130003849A1
公开(公告)日：2013-01-03
申请号：US13536218
申请日：2012-06-28
申请人： Wei-Jung Chien , Peisong Chen , Marta Karczewicz
发明人： Wei-Jung Chien , Peisong Chen , Marta Karczewicz
IPC分类号： H04N7/32
摘要： In one example, a device for coding video data includes a video coder configured to configured to code information representative of whether an absolute value of an x-component of a motion vector difference value for a current block of video data is greater than zero, code information representative of whether an absolute value of a y-component of the motion vector difference value is greater than zero, when the absolute value of the x-component is greater than zero, code information representative of the absolute value of the x-component, when the absolute value of the y-component is greater than zero, code information representative of the absolute value of the y-component, when the absolute value of the x-component is greater than zero, code a sign of the x-component, and when the absolute value of the y-component is greater than zero, code a sign of the y-component.
摘要翻译：在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为对表示当前视频数据块的运动矢量差值的x分量的绝对值是否大于零的代码进行编码;代码表示运动矢量差值的y分量的绝对值是否大于零的信息，当x分量的绝对值大于零时，表示x分量的绝对值的代码信息，当y分量的绝对值大于零时，表示y分量的绝对值的代码信息，当x分量的绝对值大于零时，编码x分量的符号，并且当y分量的绝对值大于零时，编码y分量的符号。

95. 发明申请

US20120147967A1 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：US20120147967A1
公开(公告)日：2012-06-14
申请号：US13311755
申请日：2011-12-06
申请人： Rahul P. Panchal , Marta Karczewicz , Peisong Chen
发明人： Rahul P. Panchal , Marta Karczewicz , Peisong Chen
IPC分类号： H04N7/32 , H04N7/26
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。

96. 发明申请

US20120147961A1 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：US20120147961A1
公开(公告)日：2012-06-14
申请号：US13302539
申请日：2011-11-22
申请人： Liwei Guo , Marta Karczewicz , Peisong Chen
发明人： Liwei Guo , Marta Karczewicz , Peisong Chen
IPC分类号： H04N7/28
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。

97. 发明申请

US20120082225A1 SELECTIVE INDICATION OF TRANSFORM SIZES 审中-公开
标题翻译：变压器尺寸的选择指标
公开(公告)号：US20120082225A1
公开(公告)日：2012-04-05
申请号：US13249015
申请日：2011-09-29
申请人： Peisong Chen , Marta Karczewicz , Rahul P. Panchal
发明人： Peisong Chen , Marta Karczewicz , Rahul P. Panchal
IPC分类号： H04N7/50
CPC分类号： H04N19/96 , H04N19/119 , H04N19/122 , H04N19/61 , H04N19/70
摘要： During a video encoding process, a video encoder may transform the residual data of a coding unit (CU) using a single transform if the CU only has a single prediction unit (PU). If the CU has multiple PUs, the video encoder may transform the residual data using multiple transforms. The video encoder outputs an indication of the size of a transform used to transform residual data of the CU only when the CU has more than one PU. If a video decoder receives such an indication, the video decoder may reconstruct residual data of the CU using a transform of the indicated size. Otherwise, the video decoder may reconstruct the residual data of the CU using a transform having same size as the CU.
摘要翻译：在视频编码处理期间，如果CU仅具有单个预测单元（PU），则视频编码器可以使用单个变换来变换编码单元（CU）的残差数据。如果CU具有多个PU，则视频编码器可以使用多个变换来变换残差数据。视频编码器仅在CU具有多于一个PU时输出用于变换CU的残留数据的变换大小的指示。如果视频解码器接收到这样的指示，则视频解码器可以使用所指示的大小的变换来重构CU的残留数据。否则，视频解码器可以使用具有与CU相同大小的变换来重构CU的残留数据。

98. 发明申请

US20120051431A1 MOTION DIRECTION BASED ADAPTIVE MOTION VECTOR RESOLUTION SIGNALING FOR VIDEO CODING 审中-公开
标题翻译：基于运动方向的自适应运动矢量分解信号用于视频编码
公开(公告)号：US20120051431A1
公开(公告)日：2012-03-01
申请号：US13172496
申请日：2011-06-29
申请人： Wei-Jung Chien , Marta Karczewicz , Peisong Chen
发明人： Wei-Jung Chien , Marta Karczewicz , Peisong Chen
IPC分类号： H04N7/26
CPC分类号： H04N19/523 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/52
摘要： Video coding devices may signal or determine sub-integer pixel precision for motion vectors based on a direction of prediction for the motion vector, e.g., whether a reference frame is to be displayed earlier or later than a current frame. In one example, an apparatus includes a video encoder configured to encode a block of video data using a motion vector that refers to a reference frame in one of a plurality of sets of reference frames with a selected sub-integer pixel precision, generate a value representative of the selected precision for the motion vector based on the one of the plurality of sets of reference frames referred to by the motion vector, and output the encoded block and the generated value representative of the selected precision for the motion vector. A video decoder may determine a sub-integer pixel precision for the motion vector based on the value.
摘要翻译：视频编码设备可以基于运动矢量的预测方向（例如，参考帧是要比当前帧更早还是晚于当前帧）来显示或确定运动矢量的亚整数像素精度。在一个示例中，一种设备包括：视频编码器，被配置为使用参考具有所选择的亚整数像素精度的多组参考帧之一中的参考帧的运动矢量对视频数据块进行编码，生成值基于由运动矢量引用的多组参考系中的一组参考运动矢量选择的精度的代表，并且输出代表运动矢量的选定精度的编码块和生成值。视频解码器可以基于该值确定运动矢量的子整数像素精度。

99. 发明申请

US20110200110A1 SMOOTHING OVERLAPPED REGIONS RESULTING FROM GEOMETRIC MOTION PARTITIONING 有权
标题翻译：根据几何运动分类得出的平滑覆盖区域
公开(公告)号：US20110200110A1
公开(公告)日：2011-08-18
申请号：US13013687
申请日：2011-01-25
申请人： Peisong Chen , Xianglin Wang , Marta Karczewicz
发明人： Peisong Chen , Xianglin Wang , Marta Karczewicz
IPC分类号： H04N7/32
CPC分类号： H04N19/615 , H04N19/119 , H04N19/122 , H04N19/137 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/537 , H04N19/543 , H04N19/66
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 prediction value of a pixel in a transition region of the block using a filter that applies a value for at least one neighboring pixel from the first partition and a value for at least one neighboring pixel from the second partition, calculate a residual value of the pixel in the transition region of the block based on the prediction value of the pixel in the transition region, and output the residual value of the pixel. In one example, a video decoder may use a similar filter to decode an the encoded block after receiving the residual value for the encoded block, and using a definition of the geometric motion partition line.
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分割成第一分区和第二分区，使用滤波器计算块的过渡区域中的像素的预测值其对来自第一分区的至少一个相邻像素应用值，并且从第二分区施加至少一个相邻像素的值，基于像素的预测值计算块的过渡区域中的像素的残留值并且输出像素的残留值。在一个示例中，视频解码器可以在接收到编码块的残余值之后使用类似的滤波器对编码块进行解码，并且使用几何运动分割线的定义。

100. 发明申请

US20110200109A1 FIXED POINT IMPLEMENTATION FOR GEOMETRIC MOTION PARTITIONING 有权
标题翻译：用于几何运动分配的固定点实现
公开(公告)号：US20110200109A1
公开(公告)日：2011-08-18
申请号：US13012126
申请日：2011-01-24
申请人： Rajan L. Joshi , Peisong Chen , Marta Karczewicz
发明人： Rajan L. Joshi , Peisong Chen , Marta Karczewicz
IPC分类号： H04N7/26
CPC分类号： H04N19/615 , H04N19/119 , H04N19/122 , H04N19/137 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/537 , H04N19/543 , H04N19/66
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。

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