公开(公告)号：US09807424B2

公开(公告)日：2017-10-31

申请号：US13311834

申请日：2011-12-06

申请人： Liwei Guo ,  Peisong Chen ,  Marta Karczewicz

发明人： Liwei Guo ,  Peisong Chen ,  Marta Karczewicz

IPC分类号： H04N7/32 ,  H04N19/86 ,  H04N19/159 ,  H04N19/176 ,  H04N19/117 ,  H04N19/127 ,  H04N19/17 ,  H04N19/80

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/127 ,  H04N19/159 ,  H04N19/17 ,  H04N19/176 ,  H04N19/80

摘要： During a video encoding or decoding process, a predicted prediction block is generated for a CU. The CU may have two or more prediction units (PUs). A computing device selects a neighbor region size. After the computing device selects the neighbor region size, samples in a transition zone of the prediction block are identified. Samples associated with a first PU are in the transition zone if neighbor regions that contain the samples also contain samples associated with a second PU. Samples associated with the second PU may be in the transition zone if neighbor regions that contain the samples also contain samples associated with the first PU. The neighbor regions have the selected neighbor region size. A smoothing operation is then performed on the samples in the transition zone.

公开(公告)号：US09654776B2

公开(公告)日：2017-05-16

申请号：US13013706

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： H04N19/119 ,  H04N19/52 ,  H04N19/122 ,  H04N19/137 ,  H04N19/17 ,  H04N19/537 ,  H04N19/543

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 geometric partition and a second geometric partition using a geometric motion partition line, wherein the block comprises N×N pixels, divide the block of video data into four equally-sized, non-overlapping (N/2)×(N/2) sub-blocks, and encode at least one of the sub-blocks through which the geometric motion partition line passes using a transform size smaller than (N/2)×(N/2). The video encoder may determine transform sizes for the sub-blocks based on whether the geometric motion partition line passes through the sub-blocks. In one example, a video decoder may inverse transform the sub-blocks, and may determine transform sizes for the sub-blocks based on whether the geometric motion partition line passes through the sub-blocks.

公开(公告)号：US09237355B2

公开(公告)日：2016-01-12

申请号：US12945170

申请日：2010-11-12

申请人： Wei-Jung Chien ,  Marta Karczewicz ,  Peisong Chen

发明人： Wei-Jung Chien ,  Marta Karczewicz ,  Peisong Chen

IPC分类号： H04N11/02 ,  H04N19/58 ,  H04N19/52 ,  H04N19/176 ,  H04N19/147 ,  H04N19/172 ,  H04N19/46 ,  H04N19/102 ,  H04N19/61 ,  H04N19/523

CPC分类号： H04N19/58 ,  H04N19/102 ,  H04N19/147 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/523 ,  H04N19/61

摘要： A video encoder may encode video data by adaptively selecting between one-eighth-pixel and one-quarter-pixel precision motion vectors, and signal the selected precision. In one example, an apparatus includes a video encoder to encode a block of video data using a one-eighth-pixel precision motion vector when use of the one-eighth-pixel precision motion vector is determined to be preferable for the block over a one-quarter-pixel precision motion vector, and to generate a signal value indicative of the use of the one-eighth-pixel precision motion vector for the block, and an output interface to output the encoded block and the signal value. A video decoder may be configured to receive the signal value and the encoded block, analyze the signal value to determine whether the block was encoded using one-eighth-pixel precision or one-quarter-pixel precision, and decode the block based on the determination.

摘要翻译： 视频编码器可以通过在八分之一像素和四分之一像素精度的运动矢量之间进行自适应选择来对视频数据进行编码，并且将所选精度发信号。 在一个示例中，一种装置包括：视频编码器，当使用八分之一像素的精确运动矢量被确定为优于一块时，使用八分之一像素精度的运动矢量对视频数据块进行编码 并且生成指示使用该块的八分之一像素精度运动矢量的信号值，以及输出接口以输出编码块和信号值。 视频解码器可以被配置为接收信号值和编码块，分析信号值以确定块是使用八分之一像素精度还是四分之一像素精度进行编码，并且基于该确定对块进行解码 。

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。

公开(公告)号：US08948241B2

公开(公告)日：2015-02-03

申请号：US12757231

申请日：2010-04-09

申请人： Ying Chen ,  Peisong Chen ,  Marta Karczewicz

发明人： Ying Chen ,  Peisong Chen ,  Marta Karczewicz

IPC分类号： H04N21/43 ,  H04N21/63 ,  H04N21/435 ,  H04N21/2343 ,  H04N21/235 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/434 ,  H04N21/6336 ,  H04N21/845

CPC分类号： H04N21/435 ,  H04N21/234327 ,  H04N21/235 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/4347 ,  H04N21/6336 ,  H04N21/8451

摘要： Source and destination video devices may use data structures that signal details of an operation point for an MPEG-2 (Motion Picture Experts Group) System bitstream. In one example, an apparatus includes a multiplexer that constructs a data structure corresponding to a multiview video coding (MVC) operation point of an MPEG-2 (Motion Picture Experts Group) System standard bitstream, wherein the data structure signals a rendering capability value that describes a rendering capability to be satisfied by a receiving device to use the MVC operation point, a decoding capability value that describes a decoding capability to be satisfied by the receiving device to use the MVC operation point, and a bitrate value that describes a bitrate of the MVC operation point, and that includes the data structure as part of the bitstream, and an output interface that outputs the bitstream comprising the data structure.

摘要翻译： 源和目的地视频设备可以使用信号来表示MPEG-2（运动图像专家组）系统比特流的操作点的细节的数据结构。 在一个示例中，一种装置包括多路复用器，其构建与MPEG-2（运动图像专家组）系统标准比特流的多视点视频编码（MVC）操作点相对应的数据结构，其中数据结构发出一个渲染能力值， 描述了接收装置要使用MVC操作点满足的呈现能力，描述由接收装置使用MVC操作点要解决的解码能力的解码能力值，以及描述了MVC操作点的比特率的比特率值 MVC操作点，并且包括作为比特流的一部分的数据结构以及输出包括数据结构的比特流的输出接口。

公开(公告)号：US08780999B2

公开(公告)日：2014-07-15

申请号：US12709323

申请日：2010-02-19

申请人： Ying Chen ,  Marta Karczewicz ,  Peisong Chen

发明人： Ying Chen ,  Marta Karczewicz ,  Peisong Chen

IPC分类号： H04N7/12

CPC分类号： H04N21/8451 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N21/21805 ,  H04N21/234327 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/4345 ,  H04N21/4347

摘要： A demultiplexer may assemble view components of sub-bitstreams. In one example, an apparatus comprises a demultiplexer that produces a multiview video coding (MVC) standard compliant bitstream from a received bitstream comprising a primary sub-bitstream and an embedded sub-bitstream. To produce the MVC standard compliant bitstream, the demultiplexer determines whether a view component of the primary sub-bitstream has a view order index that is greater than a view order index of a view component of the embedded sub-bitstream, and to add the view component from the sub-bitstream for which the view order index is lower to the produced bitstream. The received bitstream may comprise delimiter network abstraction layer (NAL) units between each view component to differentiate the view components. The apparatus may further comprise a video decoder to decode the bitstream produced by the demultiplexer.

摘要翻译： 解复用器可以组合子比特流的视图分量。 在一个示例中，设备包括解复用器，其从包含主子比特流和嵌入子比特流的接收比特流中产生多视图视频编码（MVC）标准兼容比特流。 为了产生符合MVC标准的比特流，解复用器确定主子比特流的视图分量是否具有大于嵌入子比特流的视图分量的视图订单索引的视图订单索引，并且添加视图 来自视频顺序索引低于所生成的比特流的子比特流的分量。 所接收的比特流可以包括在每个视图组件之间的定界符网络抽象层（NAL）单元，以区分视图组件。 该装置还可以包括视频解码器，以解码由解复用器产生的比特流。

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。

公开(公告)号：US08665964B2

公开(公告)日：2014-03-04

申请号：US12495613

申请日：2009-06-30

申请人： Rajan L. Joshi ,  Peisong Chen ,  Marta Karczewicz

发明人： Rajan L. Joshi ,  Peisong Chen ,  Marta Karczewicz

IPC分类号： H04N7/18

CPC分类号： H04N19/567 ,  H04N19/102 ,  H04N19/105 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/61

摘要： This disclosure describes video encoding and decoding techniques in which a first order prediction process and a second order prediction process are used in combination to generate predictive video blocks for video coding. First order prediction may be similar to conventional motion estimation and motion compensation that generates residual video blocks. The second order prediction may involve a process similar to conventional intra-prediction, but is performed on the residual video blocks. The techniques of this disclosure may pre-define the second order prediction to a specific mode, such as a mode similar to the intra-DC mode used in intra coding. In addition, the techniques of this disclosure may combine aspects of the first order and second order prediction into a single process so that the effects of second order prediction on the residuals are taken into account during the first order prediction process, which may improve compression.

摘要翻译： 本公开描述了视频编码和解码技术，其中组合使用一阶预测处理和二阶预测处理以产生用于视频编码的预测视频块。 第一阶预测可以类似于产生残余视频块的常规运动估计和运动补偿。 二阶预测可以涉及与常规帧内预测类似的处理，但是对剩余视频块执行。 本公开的技术可以预定义到特定模式的二阶预测，例如类似于帧内编码中使用的DC内模式的模式。 此外，本公开的技术可以将一阶和二阶预测的方面组合成单个过程，使得在第一阶预测过程期间考虑二阶预测对残差的影响，这可以改善压缩。

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。

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。