公开(公告)号：WO2013166395A2

公开(公告)日：2013-11-07

申请号：PCT/US2013039483

申请日：2013-05-03

Applicant: QUALCOMM INC

Inventor： VAN DER AUWERA GEERT ,  KARCZEWICZ MARTA ,  JOSHI RAJAN LAXMAN ,  SEREGIN VADIM

IPC: H04N7/26

CPC classification number: H04N19/00775 ,  H04N19/176 ,  H04N19/60 ,  H04N19/70

Abstract: An example method includes determining whether an encoded block of residual video data was encoded losslessly in accordance with a lossless coding mode, based on whether transform operations were skipped during encoding of the block of residual video data, and if the block of residual video data was encoded losslessly, then decoding the encoded block of residual video data according to the lossless coding mode to form a reconstructed block of residual video data, where decoding the encoded block of residual data comprises bypassing quantization and sign hiding while decoding the encoded block of residual video data, and bypassing all loop filters with respect to the reconstructed block of residual video data.

Abstract translation: 一种示例性方法包括：基于在编码残差视频数据块期间是否跳过了变换操作，确定剩余视频数据的编码块是否根据无损编码模式无损编码，并且如果剩余视频数据块是 无损地编码，然后根据无损编码模式解码残余视频数据的编码块，以形成残余视频数据的重建块，其中对编码的残留数据块进行解码包括绕过量化和符号隐藏，同时解码编码的残留视频块 数据和绕过所有环路滤波器相对于重构的残留视频数据块。

公开(公告)号：WO2013096772A3

公开(公告)日：2013-10-31

申请号：PCT/US2012071252

申请日：2012-12-21

Applicant: QUALCOMM INC

Inventor： GUO LIWEI ,  WANG XIANGLIN ,  KARCZEWICZ MARTA

IPC: H04N7/26 ,  H04N7/34 ,  H04N7/50

CPC classification number: H04N19/00793 ,  H04N19/11 ,  H04N19/119 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

Abstract: In an example, aspects of this disclosure relate to a method for coding video data that includes predicting a first non-square partition of a current block of video data using a first intra-prediction mode, where the first non-square partition has a first size. The method also includes predicting a second non-square partition of the current block of video data using a second intra-prediction mode, where the second non-square partition has a second size different than the first size. The method also includes coding the current block based on the predicted first and second non-square partitions.

Abstract translation: 在一个示例中，本公开的方面涉及用于对视频数据进行编码的方法，该方法包括使用第一帧内预测模式预测当前视频数据块的第一非正方形分区，其中第一非正方形分区具有第一 尺寸。 该方法还包括使用第二帧内预测模式预测当前视频数据块的第二非正方形分区，其中第二非正方形分区具有与第一大小不同的第二大小。 该方法还包括基于预测的第一和第二非正方形分区对当前块进行编码。

公开(公告)号：WO2013155267A2

公开(公告)日：2013-10-17

申请号：PCT/US2013036123

申请日：2013-04-11

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  CHEN JIANLE ,  WANG XIANGLIN ,  KARCZEWICZ MARTA

IPC: H04N7/36

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/42 ,  H04N19/513 ,  H04N19/52 ,  H04N19/523

Abstract: A video decoder determines, based at least in part on a size of a prediction unit (PU), whether to round either or both a horizontal or a vertical component of a motion vector of the PU from sub-pixel accuracy to integer-pixel accuracy. The video decoder generates, based at least in part on the motion vector, a predictive sample block for the PU and generates, based in part on the predictive sample block for the PU, a reconstructed sample block.

Abstract translation: 视频解码器至少部分地基于预测单元（PU）的大小来确定是否将PU的运动矢量的水平或垂直分量从子像素精度舍入到整数像素精度 。 视频解码器至少部分地基于运动矢量生成PU的预测采样块，并且部分地基于PU的预测采样块产生重建的采样块。

公开(公告)号：WO2011103209A3

公开(公告)日：2012-09-13

申请号：PCT/US2011025122

申请日：2011-02-16

Applicant: QUALCOMM INC ,  JOSHI RAJAN L ,  CHEN PEISONG ,  KARCZEWICZ MARTA

Inventor： JOSHI RAJAN L ,  CHEN PEISONG ,  KARCZEWICZ MARTA

IPC: H04N7/26

CPC classification number: H04N19/523 ,  H04N19/186 ,  H04N19/513 ,  H04N19/61

Abstract: A video coding unit may be configured to encode or decode chrominance blocks of video data by reusing motion vectors for corresponding luminance blocks. A motion vector may have greater precision for chrominance blocks than luminance blocks, due to downsampling of chrominance blocks relative to corresponding luminance blocks. The video coding unit may interpolate values for a reference chrominance block by selecting interpolation filters based on the position of the pixel position pointed to by the motion vector. For example, a luminance motion vector may have one-quarter-pixel precision and a chrominance motion vector may have one-eighth-pixel precision. There may be interpolation filters associated with the quarter-pixel precisions. The video coding unit may use interpolation filters either corresponding to the pixel position or neighboring pixel positions to interpolate a value for the pixel position pointed to by the motion vector.

Abstract translation: 视频编码单元可以被配置为通过重新使用对应的亮度块的运动矢量来对视频数据的色度块进行编码或解码。 由于色度块相对于对应亮度块的下采样，运动矢量可能具有比亮度块更高的色度块精度。 视频编码单元可以通过基于由运动矢量指向的像素位置的位置来选择内插滤波器来内插参考色度块的值。 例如，亮度运动矢量可以具有四分之一像素精度，并且色度运动矢量可以具有八分之一像素的精度。 可以存在与四分之一像素精度相关联的内插滤波器。 视频编码单元可以使用对应于像素位置或相邻像素位置的插值滤波器来内插由运动矢量指向的像素位置的值。

公开(公告)号：WO2009089373A3

公开(公告)日：2011-06-30

申请号：PCT/US2009030468

申请日：2009-01-08

Applicant: QUALCOMM INC ,  KARCZEWICZ MARTA ,  YE YAN

Inventor： KARCZEWICZ MARTA ,  YE YAN

IPC: H04N7/26 ,  H03H17/02

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/134 ,  H04N19/169 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82

Abstract: This disclosure recognizes and exploits the fact that some of the filter coefficients defined at the encoder may possess symmetry relative to other filter coefficients. Accordingly, this disclosure describes techniques in which a first set of the filter coefficients are used to predictively encode a second set of the filter coefficients, thereby exploiting any symmetry between filter coefficients. Rather than communicate all of the filter coefficients to the decoding device, the encoding device may communicate the first set of filter coefficients and difference values associated with the second set of filter coefficients. Using this information, the decoder may be able to reconstruct all of the filter coefficients. In some cases, if exact symmetry is imposed, the need to send the difference values may be eliminated and the decoder may be able to derive the second set of filter coefficients from the first set of filter coefficients.

Abstract translation: 本公开识别和利用了在编码器处定义的一些滤波器系数相对于其它滤波器系数可能具有对称性的事实。 因此，本公开描述了其中使用第一组滤波器系数来预测性地编码第二组滤波器系数的技术，从而利用滤波器​​系数之间的任何对称性。 编码设备不是将所有的滤波器系数传送到解码设备，而是可以传送与第二组滤波器系数相关联的第一组滤波器系数和差值。 使用该信息，解码器可以能够重构所有的滤波器系数。 在一些情况下，如果施加精确的对称性，则可以消除发送差值的需要，并且解码器可以能够从第一组滤波器系数导出第二组滤波器系数。

公开(公告)号：WO2011002809A3

公开(公告)日：2011-06-23

申请号：PCT/US2010040475

申请日：2010-06-29

Applicant: QUALCOMM INC ,  KARCZEWICZ MARTA ,  CHIEN WEI-JUNG

Inventor： KARCZEWICZ MARTA ,  CHIEN WEI-JUNG

IPC: H04N7/36

CPC classification number: H04N19/00733 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/46 ,  H04N19/51 ,  H04N19/573 ,  H04N19/577

Abstract: In one aspect of this disclosure, template matching motion prediction is applied to B frames. In another aspect of this disclosure, template matching motion prediction as applied to video block coding may include generating a template offset, generating a weighted sum of absolute differences, selecting a number of hypotheses used to encode video blocks based on the cost associated with the number of hypotheses and signaling, with a new syntax, to a decoder, the number of hypotheses used in encoding, rejecting hypotheses if the difference in value between a hypothesis and a reference hypothesis is greater than a threshold value, and/or generating the content of a sub-block that does not have reconstructed data available by combining motion-compensated prediction and luma residuals.

Abstract translation: 在本公开的一个方面，模板匹配运动预测被应用于B帧。 在本公开的另一方面，应用于视频块编码的模板匹配运动预测可以包括生成模板偏移，产生绝对差的加权和，基于与数字相关联的成本来选择用于编码视频块的假设数 如果假设和参考假设之间的差异大于阈值，则将解码器中使用的假设的数量的假设和信号传递给解码器，拒绝假设，和/或产生内容 通过组合运动补偿预测和亮度残差，没有重建数据可用的子块。

公开(公告)号：WO2011035211A8

公开(公告)日：2011-04-28

申请号：PCT/US2010049402

申请日：2010-09-17

Applicant: QUALCOMM INC ,  CHEN YING ,  KARCZEWICZ MARTA

Inventor： CHEN YING ,  KARCZEWICZ MARTA

IPC: H04N7/24

CPC classification number: H04N19/0043 ,  H04N19/31 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/8451 ,  H04N21/85406

Abstract: A video coding apparatus may be configured to utilize media extractors in a media extractor track that reference two or more non-consecutive network access layer (NAL) units of a separate track. An example apparatus includes a multiplexer to construct a first track including a video sample comprising NAL units, based on encoded video data, wherein the video sample is included in an access unit, construct a second track including an extractor that identifies at least first one of the NAL units in the video sample of the first track, and wherein the extractor identifies a second NAL unit of the access unit, wherein the first identified NAL unit and the second identified NAL unit are non-consecutive, and include the first track and the second track in a video file conforming at least in part to ISO base media file format. The identified NAL units may be in separate tracks.

Abstract translation: 视频编码设备可以被配置为在参考单独轨道的两个或更多个非连续网络接入层（NAL）单元的媒体提取器轨道中利用媒体提取器。 一种示例性装置包括：复用器，基于编码的视频数据构建包括具有NAL单元的视频样本的第一轨道，其中视频样本被包括在访问单元中;构建包括提取器的第二轨道，该提取器至少标识第一 所述第一轨道的所述视频样本中的所述NAL单元，并且其中所述提取器识别所述存取单元的第二NAL单元，其中所述第一识别的NAL单元和所述第二识别的NAL单元是非连续的，并且包括所述第一轨道和 视频文件中的第二轨道至少部分符合ISO基本媒体文件格式。 确定的NAL单元可能处于不同的轨道。

公开(公告)号：WO2010075342A3

公开(公告)日：2010-11-04

申请号：PCT/US2009069124

申请日：2009-12-22

Applicant: QUALCOMM INC ,  YE YAN ,  KARCZEWICZ MARTA ,  CHIEN WEI-JUNG

Inventor： YE YAN ,  KARCZEWICZ MARTA ,  CHIEN WEI-JUNG

IPC: H04N7/26 ,  H04N7/36 ,  H04N7/50

CPC classification number: H04N19/85 ,  H04N19/117 ,  H04N19/137 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/523 ,  H04N19/61 ,  H04N19/82

Abstract: In one example, this disclosure describes filtering techniques for filtering of video blocks of a video unit. The filtering techniques may select one or more different types of filtering for each video block of the video unit based on various factors such as whether the video block is inter coded or intra coded, and whether adaptive interpolations were preformed during a motion compensation process during the encoding of the video block. When adaptive interpolations were performed, the adaptive interpolations may provide a level of filtering that renders additional filtering unnecessary or undesirable in some cases.

Abstract translation: 在一个示例中，本公开描述了用于过滤视频单元的视频块的滤波技术。 滤波技术可以基于各种因素来选择视频单元的每个视频块的一种或多种不同类型的滤波，例如视频块是帧间编码还是帧内编码，以及在运动补偿过程期间是否执行自适应插值 视频块的编码。 当执行自适应插值时，自适应插值可以提供一些过滤水平，这在一些情况下不必要地或不期望地进行额外的滤波。

公开(公告)号：WO2010045380A3

公开(公告)日：2010-06-10

申请号：PCT/US2009060707

申请日：2009-10-14

Applicant: QUALCOMM INC ,  KARCZEWICZ MARTA ,  PANCHAL RAHUL

Inventor： KARCZEWICZ MARTA ,  PANCHAL RAHUL

IPC: H04N7/26 ,  H04N7/30 ,  H04N7/36

CPC classification number: H04N19/13 ,  H04N19/105 ,  H04N19/129 ,  H04N19/139 ,  H04N19/157 ,  H04N19/159 ,  H04N19/17 ,  H04N19/174 ,  H04N19/18 ,  H04N19/184 ,  H04N19/187 ,  H04N19/34 ,  H04N19/46 ,  H04N19/51

Abstract: This disclosure describes methods that control the selection of predictive coding techniques for enhancement layer video blocks based on characteristics of vectorized entropy coding for such enhancement layer video blocks. In accordance with this disclosure, the predictive techniques used for predictive-based video coding of enhancement layer video blocks are dependent upon the vectorized entropy coding used for such enhancement layer video blocks. For each coded unit, predictive coding techniques (e.g. weighted or non weighted prediction) may be selected depending upon whether the vectorized entropy coding defines a single vector for the video blocks of that coded unit or multiple vectors for the video blocks of that coded unit.

Abstract translation: 本公开描述了基于用于这种增强层视频块的矢量化熵编码的特性来控制对增强层视频块的预测编码技术的选择的方法。 根据本公开，用于增强层视频块的基于预测的视频编码的预测技术取决于用于这种增强层视频块的矢量化熵编码。 对于每个编码单元，可以根据矢量化熵编码是否定义该编码单元的视频块的单个向量或该编码单元的视频块的多个向量来选择预测编码技术（例如加权或非加权预测）。

公开(公告)号：WO2009049260A3

公开(公告)日：2009-05-28

申请号：PCT/US2008079649

申请日：2008-10-10

Applicant: QUALCOMM INC ,  KARCZEWICZ MARTA ,  YE YAN

Inventor： KARCZEWICZ MARTA ,  YE YAN

IPC: H04N7/50

CPC classification number: H04N19/61 ,  H04N19/13 ,  H04N19/46 ,  H04N19/70

Abstract: This disclosure describes techniques for entropy coding of video blocks, and proposes a syntax element that may promote coding efficiency. The syntax element may identify a number of non-zero value sub-blocks within a video block, wherein the non-zero value sub-blocks comprise sub-blocks within the video block that include at least one non-zero coefficient. A method of coding a video block may comprise coding the syntax element, generating the non-zero value sub-blocks of the video block, and entropy coding the non-zero value sub-blocks.

Abstract translation: 本发明描述用于视频块的熵译码的技术，且提出可提升译码效率的语法元素。 语法元素可以识别视频块内的非零值子块的数目，其中非零值子块包括视频块内的包括至少一个非零系数的子块。 一种编码视频块的方法可包括译码语法元素，产生视频块的非零值子块，以及熵编码非零值子块。