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21. 发明申请

WO2011103209A3 CHROMINANCE HIGH PRECISION MOTION FILTERING FOR MOTION INTERPOLATION 审中-公开
标题翻译：用于运动插值的高精度运动滤波
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
申请人： QUALCOMM INC , JOSHI RAJAN L , CHEN PEISONG , KARCZEWICZ MARTA
发明人： JOSHI RAJAN L , CHEN PEISONG , KARCZEWICZ MARTA
IPC分类号： H04N7/26
CPC分类号： H04N19/523 , H04N19/186 , H04N19/513 , H04N19/61
摘要： 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.
摘要翻译：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。

22. 发明申请

WO2009089373A3 VIDEO CODING WITH COMPRESSION OF FILTER COEFFICIENTS DEPENDING ON HORIZONTAL AND VERTICAL SYMMETRY OF THE FILTER TAP MATRIX AND THE POSITION OF A FILTER TAP RELATIVE TO THE CENTRAL TAP 审中-公开
标题翻译：根据滤波器阵列的水平和垂直对称性以及相对于中心带的滤波器位置的滤波器系数的压缩编码
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
申请人： QUALCOMM INC , KARCZEWICZ MARTA , YE YAN
发明人： KARCZEWICZ MARTA , YE YAN
IPC分类号： H04N7/26 , H03H17/02
CPC分类号： H04N19/86 , H04N19/117 , H04N19/134 , H04N19/169 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/82
摘要： 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.
摘要翻译：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。

23. 发明申请

WO2011002809A3 TEMPLATE MATCHING FOR VIDEO CODING 审中-公开
标题翻译：模式匹配视频编码
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
申请人： QUALCOMM INC , KARCZEWICZ MARTA , CHIEN WEI-JUNG
发明人： KARCZEWICZ MARTA , CHIEN WEI-JUNG
IPC分类号： H04N7/36
CPC分类号： H04N19/00733 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/46 , H04N19/51 , H04N19/573 , H04N19/577
摘要： 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.
摘要翻译：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。

24. 发明申请

WO2011035211A8 MEDIA EXTRACTOR TRACKS FOR FILE FORMAT TRACK SELECTION 审中-公开
标题翻译：媒体提取器轨道文件格式轨道选择
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
申请人： QUALCOMM INC , CHEN YING , KARCZEWICZ MARTA
发明人： CHEN YING , KARCZEWICZ MARTA
IPC分类号： H04N7/24
CPC分类号： H04N19/0043 , H04N19/31 , H04N19/597 , H04N19/61 , H04N19/70 , H04N21/234327 , H04N21/8451 , H04N21/85406
摘要： 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.
摘要翻译：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。

25. 发明申请

WO2010075342A3 COMBINED SCHEME FOR INTERPOLATION FILTERING, IN-LOOP FILTERING AND POST-LOOP FILTERING IN VIDEO CODING 审中-公开
标题翻译：嵌入式过滤，视频编码中的环路滤波和后循环滤波的组合方案
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
申请人： QUALCOMM INC , YE YAN , KARCZEWICZ MARTA , CHIEN WEI-JUNG
发明人： YE YAN , KARCZEWICZ MARTA , CHIEN WEI-JUNG
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50
CPC分类号： H04N19/85 , H04N19/117 , H04N19/137 , H04N19/176 , H04N19/182 , H04N19/46 , H04N19/523 , H04N19/61 , H04N19/82
摘要： 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.
摘要翻译：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。

26. 发明申请

WO2010045380A3 WEIGHTED PREDICTION BASED ON VECTORIZED ENTROPY CODING 审中-公开
标题翻译：基于加密熵编码的加权预测
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
申请人： QUALCOMM INC , KARCZEWICZ MARTA , PANCHAL RAHUL
发明人： KARCZEWICZ MARTA , PANCHAL RAHUL
IPC分类号： H04N7/26 , H04N7/30 , H04N7/36
CPC分类号： 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
摘要： 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.
摘要翻译：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）。

27. 发明申请

WO2009049260A3 ENTROPY CODING OF INTERLEAVED SUB-BLOCKS OF A VIDEO BLOCK 审中-公开
标题翻译：视频块交错分块的熵编码
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
申请人： QUALCOMM INC , KARCZEWICZ MARTA , YE YAN
发明人： KARCZEWICZ MARTA , YE YAN
IPC分类号： H04N7/50
CPC分类号： H04N19/61 , H04N19/13 , H04N19/46 , H04N19/70
摘要： 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.
摘要翻译：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。

28. 发明申请

WO2012154576A3 OFFSET TYPE AND COEFFICIENTS SIGNALING METHOD FOR SAMPLE ADAPTIVE OFFSET 审中-公开
标题翻译：偏移类型和系数自适应偏差的信号方法
公开(公告)号：WO2012154576A3
公开(公告)日：2013-05-02
申请号：PCT/US2012036562
申请日：2012-05-04
申请人： QUALCOMM INC , CHONG IN SUK , VAN DER AUWERA GEERT , KARCZEWICZ MARTA
发明人： CHONG IN SUK , VAN DER AUWERA GEERT , KARCZEWICZ MARTA
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/117 , H04N19/14 , H04N19/167 , H04N19/176 , H04N19/196 , H04N19/463 , H04N19/70
摘要： This disclosure describes techniques for performing sample adaptive offset signaling and coding in a video coding process. Techniques of the disclosure include both a merge-based and prediction-based signaling process for sample adaptive offset information (i.e., offset values and offset type). The techniques includes determining offset information for a current partition, comparing the offset information of the current partition with offset information of one or more neighbor partitions, coding a merge instruction in the case that the offset information of one of the one or more neighbor partitions is the same as the offset information of the current partition, and coding one of a plurality of prediction instructions in the case that the offset information of the one or more neighbor partitions is not the same as the offset information of the current partition.
摘要翻译：本公开描述了在视频编码过程中执行采样自适应偏移信令和编码的技术。本公开的技术包括用于样本自适应偏移信息（即，偏移值和偏移类型）的基于合并和基于预测的信令过程。所述技术包括确定当前分区的偏移信息，将当前分区的偏移信息与一个或多个相邻分区的偏移信息进行比较，在一个或多个相邻分区之一的偏移信息为与当前分区的偏移信息相同，并且在一个或多个相邻分区的偏移信息与当前分区的偏移信息不相同的情况下编码多个预测指令之一。

29. 发明申请

WO2013006446A9 CONTEXT ADAPTIVE ENTROPY CODING FOR NON-SQUARE BLOCKS IN VIDEO CODING 审中-公开
标题翻译：视频编码中非方块的上下文自适应熵编码
公开(公告)号：WO2013006446A9
公开(公告)日：2013-02-28
申请号：PCT/US2012044967
申请日：2012-06-29
申请人： QUALCOMM INC , SOLE ROJALS JOEL , JOSHI RAJAN LAXMAN , KARCZEWICZ MARTA
发明人： SOLE ROJALS JOEL , JOSHI RAJAN LAXMAN , KARCZEWICZ MARTA
IPC分类号： H04N7/26
CPC分类号： H04N19/60 , H04N19/129 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/45 , H04N19/625 , H04N19/91 , H04N19/93 , H04W88/02
摘要： Disclosed are techniques for coding coefficients of a video block having a nonsquare shape defined by a width and a height, comprising coding one or more of x- and y-coordinates that indicate a position of a last non-zero coefficient within the block according to an associated scanning order, including coding each coordinate by determining one or more contexts used to code the coordinate based on one of the width and the height that corresponds to the coordinate, and coding the coordinate by performing a context adaptive entropy coding process based on the contexts. Also disclosed are techniques for coding information that identifies positions of non-zero coefficients within the block, including determining one or more contexts used to code the information based on one or more of the width and the height, and coding the information by performing a context adaptive entropy coding process based on the contexts.
摘要翻译：公开了用于对具有由宽度和高度限定的非正方形形状的视频块的系数进行编码的技术，该技术包括对x和y坐标中的一个或多个进行编码，所述一个或多个坐标指示块内最后一个非零系数的位置，相关联的扫描顺序，包括通过基于对应于所述坐标的宽度和高度中的一个确定用于对坐标进行编码的一个或多个上下文来编码每个坐标，以及通过执行上下文自适应熵编码处理对坐标进行编码，所述上下文自适应熵编码处理基于上下文。还公开了用于编码识别块内的非零系数的位置的信息的技术，包括基于宽度和高度中的一个或多个确定用于对信息进行编码的一个或多个上下文，并且通过执行上下文对信息进行编码基于上下文的自适应熵编码过程。

30. 发明申请

WO2011005572A3 8-POINT TRANSFORM FOR MEDIA DATA CODING 审中-公开
标题翻译：用于媒体数据编码的8点变换
公开(公告)号：WO2011005572A3
公开(公告)日：2012-05-31
申请号：PCT/US2010039657
申请日：2010-06-23
申请人： QUALCOMM INC , REZNIK YURIY , JOSHI RAJAN L , KARCZEWICZ MARTA
发明人： REZNIK YURIY , JOSHI RAJAN L , KARCZEWICZ MARTA
IPC分类号： G06F17/14 , H04N7/26
CPC分类号： H04N19/625 , G06F17/147 , H04N19/60
摘要： In general, techniques are described for implementing an 8-point inverse discrete cosine transform (IDCT). An apparatus comprising an 8-point inverse discrete cosine transform (IDCT) hardware unit may implement these techniques to transform media data from a frequency domain to a spatial domain. The 8-point IDCT hardware unit includes an even portion comprising factors A, B that are related to a first scaled factor (µ) in accordance with a first relationship. The 8-point IDCT hardware unit also includes an odd portion comprising third, fourth, fifth and sixth internal factors (G, D, E, Z) that are related to a second scaled factor (?) in accordance with a second relationship. The first relationship relates the first scaled factor to the first and second internal factors. The second relationship relates the second scaled factor to the third, fourth, fifth and sixth internal factors.
摘要翻译：通常，描述了用于实现8点逆离散余弦变换（IDCT）的技术。包括8点逆离散余弦变换（IDCT）硬件单元的装置可实施这些技术以将媒体数据从频域转换为空间域。 8点IDCT硬件单元包括与根据第一关系的第一缩放因子（μ）相关的因子A，B的偶数部分。 8点IDCT硬件单元还包括与根据第二关系的第二缩放因子（α）相关的第三，第四，第五和第六内部因素（G，D，E，Z）的奇数部分。第一个关系将第一个缩放因子与第一个和第二个内部因素相关联。第二个关系将第二个比例因素与第三个，第四个，第五个和第六个内部因素联系起来。

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