专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 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。

3. 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。

4. 发明申请

WO2010083438A8 FILTER PREDICTION BASED ON ACTIVITY METRICS IN VIDEO CODING 审中-公开
标题翻译：基于视频编码的活动度量的滤波器预测
公开(公告)号：WO2010083438A8
公开(公告)日：2011-11-17
申请号：PCT/US2010021239
申请日：2010-01-15
申请人： QUALCOMM INC , CHEN PEISONG , KARCZEWICZ MARTA , MOTTA GIOVANNI , YE YAN
发明人： CHEN PEISONG , KARCZEWICZ MARTA , MOTTA GIOVANNI , YE YAN
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/61 , H04N19/80 , H04N19/82
摘要： This disclosure describes techniques associated with filtering of video data in a video encoding and/or decoding process. In accordance with this disclosure, filtering is applied at an encoder, and filter information is encoded in the bitstream to identify the filtering that was applied at the encoder. Different types of filtering may be applied based on an activity metric determined for the video data. Moreover, in accordance with this disclosure, the manner in which the filter information is encoded into the bitstream may be dependent on the activity metric. In particular, for a first range of the activity metric, one or more filters are encoded directly, and for a second range of the activity metric, one or more filters are predictively encoded.
摘要翻译：本公开描述与视频编码和/或解码过程中的视频数据的过滤相关联的技术。根据本公开，在编码器处应用滤波，并且将滤波器信息编码在比特流中以识别在编码器处应用的滤波。可以基于为视频数据确定的活动度量来应用不同类型的过滤。此外，根据本公开，过滤器信息被编码到比特流中的方式可以取决于活动度量。特别地，对于活动度量的第一范围，一个或多个过滤器被直接编码，并且对于活动度量的第二范围，一个或多个过滤器被预测编码。

5. 发明申请

WO2010039731A3 VIDEO CODING WITH LARGE MACROBLOCKS 审中-公开
标题翻译：视频编码与大型MACROBLOCKS
公开(公告)号：WO2010039731A3
公开(公告)日：2010-06-17
申请号：PCT/US2009058839
申请日：2009-09-29
申请人： QUALCOMM INC , CHEN PEISONG , YE YAN , KARCZEWICZ MARTA
发明人： CHEN PEISONG , YE YAN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/50
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 16x16 pixels, for example, 64x64 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 16x16 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，设备包括：视频编码器，被配置为接收具有大于16×16像素的大小的视频块，将块划分成分区，使用第一编码模式对所述分区中的一个编码，使用第二编码模式对另一分区进行编码编码模式不同于第一编码模式，并且生成指示块的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。

6. 发明申请

WO2009049250A3 ADAPTIVE CODING OF VIDEO BLOCK HEADER INFORMATION 审中-公开
标题翻译：视频块头信息的自适应编码
公开(公告)号：WO2009049250A3
公开(公告)日：2009-05-28
申请号：PCT/US2008079636
申请日：2008-10-10
申请人： QUALCOMM INC , YE YAN , KARCZEWICZ MARTA , PANCHAL RAHUL
发明人： YE YAN , KARCZEWICZ MARTA , PANCHAL RAHUL
IPC分类号： H04N7/26
CPC分类号： H04N19/12 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/70
摘要： This disclosure describes techniques for adaptively coding video block header information based on previously encoded video blocks. A video encoder may adaptively select a coding table for use in encoding a syntax element of a current video block based on corresponding syntax elements of one or more previously encoded blocks. In one aspect, the video encoder may adaptively select the coding table for use in encoding a block type of the current block based on block types of one or more video blocks adjacent to the current video block, i.e., neighboring video blocks. The video encoder may also predict one or more other header syntax elements of the current block based on at least one of the previously encoded video blocks. If prediction is successful, the video encoder may encode a flag to indicate the success of prediction.
摘要翻译：本发明描述用于基于先前经编码视频块自适应地译码视频块标头信息的技术。视频编码器可基于一个或一个以上先前经编码块的对应语法元素自适应地选择用于编码当前视频块的语法元素的编码表。在一个方面，视频编码器可基于与当前视频块相邻的一个或一个以上视频块（即，相邻视频块）的块类型自适应地选择用于编码当前块的块类型的编码表。视频编码器还可基于先前经编码视频块中的至少一者来预测当前块的一个或一个以上其它标头语法元素。如果预测成功，则视频编码器可编码标志以指示预测的成功。

7. 发明申请

WO2008157431A2 ADAPTIVE COEFFICIENT SCANNING FOR VIDEO CODING 审中-公开
标题翻译：用于视频编码的自适应系数扫描
公开(公告)号：WO2008157431A2
公开(公告)日：2008-12-24
申请号：PCT/US2008067020
申请日：2008-06-13
申请人： QUALCOMM INC , YE YAN , KARCZEWICZ MARTA
发明人： YE YAN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/30 , H04N7/34 , H04N7/36
CPC分类号： H04N19/625 , H04N19/103 , H04N19/11 , H04N19/12 , H04N19/122 , H04N19/129 , H04N19/13 , H04N19/147 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/19 , H04N19/196 , H04N19/197 , H04N19/42 , H04N19/46 , H04N19/463 , H04N19/48 , H04N19/593 , H04N19/61 , H04N19/70
摘要： This disclosure describes techniques for scanning coefficients of video blocks. In particular, the techniques of this disclosure adapt a scan order used to scan a two dimensional block of coefficients into a one dimensional coefficient vector based on statistics associated with one or more previously coded blocks. For example, statistics that indicate the likelihood that a given coefficient value in each position of a two dimensional block is zero or non zero may be collected for one or more previously coded blocks. At some point, an adjustment to the scan order can be made in order to better ensure that non-zero coefficients are grouped together near the front of the one dimensional coefficient vector, which can improve the effectiveness of entropy coding. The collection of statistics and adjustment of scan order may be made separately for each possible prediction mode.
摘要翻译：本公开描述了用于扫描视频块的系数的技术。特别地，本发明的技术根据与一个或多个先前编码的块相关联的统计数据，将用于将二维系数块扫描成一维系数向量的扫描顺序。例如，可以为一个或多个先前编码的块收集指示二维块的每个位置中的给定系数值为零或非零的可能性的统计。在某点上，可以对扫描顺序进行调整，以便更好地确保将非零系数分组在一维系数向量的前面附近，这可以提高熵编码的有效性。扫描顺序的统计和调整的收集可以针对每个可能的预测模式分别进行。

8. 发明申请

WO2009126915A8 RATE-DISTORTION DEFINED INTERPOLATION FOR VIDEO CODING BASED ON FIXED FILTER OR ADAPTIVE FILTER 审中-公开
标题翻译：基于固定滤波器或自适应滤波器的视频编码速率定义插值
公开(公告)号：WO2009126915A8
公开(公告)日：2010-12-23
申请号：PCT/US2009040254
申请日：2009-04-10
申请人： QUALCOMM INC , YE YAN , KARCZEWICZ MARTA
发明人： YE YAN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/523 , H04N19/117 , H04N19/122 , H04N19/147 , H04N19/182 , H04N19/192 , H04N19/46 , H04N19/635 , H04N19/82
摘要： This disclosure describes filtering techniques applied by an encoder and a decoder during the prediction stage of a video encoding and/or decoding process. The filtering techniques may enhance the accuracy of predictive data used during fractional interpolation, and may improve predictive data of integer blocks of pixels. There are several aspects to this disclosure, including a useful twelve-pixel filter support that may be used for interpolation, techniques that use coefficient symmetry and pixel symmetry to reduce the amount of data needed to be sent between an encoder and a decoder to configure the filter support for interpolation, and techniques for filtering data at integer pixel locations in a manner that is similar to sub-pixel interpolation. Other aspects of this disclosure concern techniques for encoding information in the bitstream to convey the type of filter used, and possibly the filter coefficients used. Predictive coding of filter coefficients is also described.
摘要翻译：本公开描述了在视频编码和/或解码过程的预测阶段期间由编码器和解码器应用的滤波技术。滤波技术可以增强在分数插值期间使用的预测数据的精度，并且可以改善整数像素块的预测数据。本公开的方面有几个方面，包括可用于插值的有用的十二像素滤波器支持，使用系数对称性和像素对称性的技术来减少在编码器和解码器之间发送的数据量以配置用于内插的滤波器支持，以及以类似于子像素插值的方式在整数像素位置处对数据进行滤波的技术。本公开的其它方面涉及用于对位流中的信息进行编码以传送所使用的滤波器的类型以及可能使用的滤波器系数的技术。还描述了滤波器系数的预测编码。

9. 发明申请

WO2010039492A3 OFFSET CALCULATION IN SWITCHED INTERPOLATION FILTERS 审中-公开
标题翻译：开关插入滤波器的偏移计算
公开(公告)号：WO2010039492A3
公开(公告)日：2011-12-22
申请号：PCT/US2009057831
申请日：2009-09-22
申请人： QUALCOMM INC , KARCZEWICZ MARTA , MOTTA GIOVANNI , YE YAN , PEISONG CHEN
发明人： KARCZEWICZ MARTA , MOTTA GIOVANNI , YE YAN , PEISONG CHEN
IPC分类号： H04N7/26
CPC分类号： H04N7/50 , H04N19/172 , H04N19/176 , H04N19/52 , H04N19/523 , H04N19/577 , H04N19/61
摘要： This disclosure describes techniques for adding offset to predictive video blocks during video coding. In one example, a method of encoding a video block includes interpolating a first block of predictive values based on a first reference video unit within a first list of reference data, and a second block of predictive values based on a second reference video unit within a second list of reference data, calculating, for sub-integer pixel positions, a first offset value based on the first block and the current video block, and a second offset value based on the first offset value and the second block, determining a final block of offset values based on the first block of predictive values, the second block of predictive values, the first offset values, and the second offset values, and encoding the current video block based on the final block of offset values.
摘要翻译：本公开描述了在视频编码期间将偏移量添加到预测视频块的技术。在一个示例中，编码视频块的方法包括基于第一参考数据列表内的第一参考视频单元和基于第一参考视频单元中的第二参考视频单元的第二块预测值来内插第一预测值块参考数据的第二列表，针对子整数像素位置，基于第一块和当前视频块计算第一偏移值，以及基于第一偏移值和第二块计算第二偏移值，确定最终块基于预测值的第一块，预测值的第二块，第一偏移值和第二偏移值，并且基于最终的偏移值块对当前视频块进行编码。

10. 发明申请

WO2010039728A3 VIDEO CODING WITH LARGE MACROBLOCKS 审中-公开
标题翻译：视频编码与大型宏块
公开(公告)号：WO2010039728A3
公开(公告)日：2010-07-08
申请号：PCT/US2009058833
申请日：2009-09-29
申请人： QUALCOMM INC , CHEN PEISONG , YE YAN , KARCZEWICZ MARTA
发明人： CHEN PEISONG , YE YAN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/50
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 16x16 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 16x16 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更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经译码单元进行编码，其中所述多个视频块中的至少一者包含大于16×16像素的尺寸且产生用于所述经译码单元的语法信息其包括最大大小值，其中所述最大大小值指示所述经译码单元中的所述多个视频块中的最大一者的大小。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合适的语法解码器以应用于编码单元。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式