专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 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。

12. 发明申请

WO2011100465A8 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：WO2011100465A8
公开(公告)日：2012-03-29
申请号：PCT/US2011024393
申请日：2011-02-10
申请人： QUALCOMM INC , CHEN YING , CHEN PEISONG , KARCZEWICZ MARTA
发明人： CHEN YING , CHEN PEISONG , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/132 , H04N19/107 , H04N19/109 , H04N19/119 , H04N19/176 , H04N19/61 , H04N19/70 , H04N19/96
摘要： A video coder may utilize large macroblocks having more than 16x16 pixels. Syntax for the large macroblocks may define whether a bitstream includes large macroblocks, such as superblocks having 64x64 pixels or bigblocks having 32x32 pixels. The syntax may be included in a slice header or a sequence parameter set. The large macroblocks may also be encoded according to a large macroblock syntax. The bitstream may further include syntax data that indicates a level value based on whether the bitstream includes any of the large macroblocks, for example, as a smallest-sized luminance prediction block. A decoder may use the level value to determine whether the decoder is capable of decoding the bitstream.
摘要翻译：视频编码器可以利用具有大于16×16像素的大宏块。大宏块的语法可以定义比特流是否包括大宏块，例如具有64×64像素的超块或具有32×32像素的大块。语法可以包括在片头或序列参数集中。大宏块也可以根据大的宏块语法进行编码。比特流还可以包括基于比特流是否包括任何大宏块，例如作为最小尺寸的亮度预测块来指示电平值的语法数据。解码器可以使用电平值来确定解码器是否能够对比特流进行解码。

13. 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。

14. 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。

15. 发明申请

WO2008106656A3 SYSTEMS AND METHODS FOR ADAPTIVELY DETERMINING I FRAMES FOR CHANNEL ACQUISITION AND BASE AND ENHANCEMENT LAYER BALANCING 审中-公开
标题翻译：用于自适应确定I通道获取和基准和增强层平衡的系统和方法
公开(公告)号：WO2008106656A3
公开(公告)日：2009-12-10
申请号：PCT/US2008055555
申请日：2008-02-29
申请人： QUALCOMM INC , CHEN PEISONG
发明人： CHEN PEISONG
IPC分类号： H04N7/26
CPC分类号： H04N19/146 , H04N19/107 , H04N19/132 , H04N19/172 , H04N19/30
摘要： The invention includes apparatus, systems and methods for processing multimedia data. A method of processing multimedia data may include encoding a frame of the multimedia data as an I frame, a channel switch frame, and a P frame and selecting the encoded I frame if a size of the encoded I frame and a size of the encoded channel switch frame and the encoded P frame meet a first condition. An apparatus for processing multimedia data may include an encoder for encoding a frame of the multimedia data as an I frame, a channel switch frame, and a P frame and selecting the encoded I frame if a size of the encoded I frame and a size of the encoded channel switch frame and the encoded P frame meet a first condition.
摘要翻译：本发明包括用于处理多媒体数据的装置，系统和方法。处理多媒体数据的方法可以包括将多媒体数据的帧编码为I帧，信道切换帧和P帧，并且如果编码的I帧的大小和编码信道的大小，则选择编码的I帧开关帧和编码的P帧满足第一个条件。用于处理多媒体数据的装置可以包括用于将多媒体数据的帧作为I帧，信道切换帧和P帧进行编码的编码器，并且如果编码的I帧的大小和编码的I帧的大小编码信道切换帧和编码P帧满足第一条件。

16. 发明申请

WO2013006297A9 APPLYING NON-SQUARE TRANSFORMS TO VIDEO DATA 审中-公开
标题翻译：对视频数据应用非平方转换
公开(公告)号：WO2013006297A9
公开(公告)日：2013-03-07
申请号：PCT/US2012044043
申请日：2012-06-25
申请人： QUALCOMM INC , GUO LIWEI , SOLE ROJALS JOEL , JOSHI RAJAN LAXMAN , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
发明人： GUO LIWEI , SOLE ROJALS JOEL , JOSHI RAJAN LAXMAN , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
IPC分类号： H04N7/26
CPC分类号： H04N19/96 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/46 , H04N19/70
摘要： In one example, a device for coding video data includes a video coder, such as a video encoder or a video decoder, that is configured to code information indicative of whether a transform unit of the video data is square or non-square, and code data of the transform unit based at least in part on whether the transform unit is square or non- square. In this manner, the video coder may utilize non-square transform units. The video coder may be configured to use non-square transform units for certain situations, such as only for chrominance or luminance components or only when a corresponding prediction unit is non-square. The video coder may further be configured to perform an entropy coding process that selects context for coding data of the transform unit based on whether the transform unit is square or non-square.
摘要翻译：在一个示例中，用于对视频数据进行译码的设备包括视频译码器，例如视频编码器或视频译码器，其经配置以译码指示视频数据的变换单元是正方形还是非正方形的信息，且代码变换单元的数据至少部分基于变换单元是正方形还是非正方形。以此方式，视频译码器可使用非正方形变换单元。视频译码器可经配置以针对某些情况使用非正方形变换单元，例如仅针对色度或亮度分量或仅当对应预测单元为非正方形时使用非正方形变换单元。视频译码器可进一步经配置以执行熵编码过程，所述熵译码过程基于变换单元是正方形还是非正方形而选择用于编码变换单元的数据的上下文。

17. 发明申请

WO2011103213A3 ENCODING MOTION VECTORS FOR GEOMETRIC MOTION PARTITIONING 审中-公开
标题翻译：编码运动矢量进行几何运动分区
公开(公告)号：WO2011103213A3
公开(公告)日：2012-02-16
申请号：PCT/US2011025126
申请日：2011-02-16
申请人： QUALCOMM INC , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
发明人： CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/36
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, determine a first motion vector for the first partition and a second motion vector for the second partition, encode the first motion vector based on a first motion predictor selected from motion vectors for blocks neighboring the first partition, encode the second motion vector based on a second motion predictor selected from motion vectors for blocks neighboring the second partition, wherein the blocks neighboring the second partition are determined independently of the blocks neighboring the first partition, and output the encoded first and second motion vectors. A video decoder may similarly decode the motion vectors based on determining the first and second motion predictors for the first and second partitions.
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，确定第一分区的第一运动矢量和第二分区的第二运动矢量基于从与第一分区相邻的块的运动矢量中选择的第一运动预测器对第一运动矢量进行编码，基于从邻近于第二分区的块的运动矢量中选择的第二运动预测器对第二运动矢量进行编码，其中块相邻独立于与第一分区相邻的块独立地确定第二分区，并且输出编码的第一和第二运动矢量。视频解码器可以基于确定第一和第二分区的第一和第二运动预测器来类似地解码运动矢量。

18. 发明申请

WO2012015650A2 CODING MOTION PREDICTION DIRECTION IN VIDEO CODING 审中-公开
标题翻译：编码运动预测方向在视频编码
公开(公告)号：WO2012015650A2
公开(公告)日：2012-02-02
申请号：PCT/US2011044732
申请日：2011-07-20
申请人： QUALCOMM INC , CHIEN WEI-JUNG , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA , CHEN YING , COBAN MUHAMMED Z
发明人： CHIEN WEI-JUNG , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA , CHEN YING , COBAN MUHAMMED Z
IPC分类号： H04N7/26 , H04N7/36 , H04N7/46 , H04N7/50
CPC分类号： H04N19/52 , H04N19/109 , H04N19/114 , H04N19/115 , H04N19/13 , H04N19/159 , H04N19/162 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/573 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/91
摘要： This disclosure relates to techniques for reducing a cost of coding prediction information in video coding. Video blocks in a generalized P/B (GPB) frame are encoded using up to two motion vectors calculated from reference pictures in two separate reference picture lists that are identical. When one of the reference picture lists is preferred over the other reference picture list, the preferred reference picture list may be used for unidirectional prediction, by default. When a GPB frame is enabled such that the first and second reference picture lists are identical, either of the first and second reference picture lists may be used for unidirectional prediction. The techniques include coding one or more syntax elements indicating that a video block is coded using one of the unidirectional prediction mode with respect to a reference picture in a reference picture list and the bidirectional prediction mode using less than two bits.
摘要翻译：本公开涉及用于降低视频编码中的预测信息编码成本的技术。广义P / B（GPB）帧中的视频块使用相同的两个单独参考图片列表中的参考图片计算的最多两个运动矢量进行编码。当参考图像列表中的一个优于另一个参考图像列表时，默认情况下优选的参考图像列表可用于单向预测。当启用GPB帧使得第一和第二参考图片列表相同时，第一和第二参考图片列表中的任一个可以用于单向预测。这些技术包括编码一个或多个语法元素，其指示使用单向预测模式中的一个相对于参考图像列表中的参考图像和使用少于两个比特的双向预测模式来编码视频块。

19. 发明申请

WO2011103210A3 SMOOTHING OVERLAPPED REGIONS RESULTING FROM GEOMETRIC MOTION PARTITIONING 审中-公开
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：WO2011103210A3
公开(公告)日：2012-02-02
申请号：PCT/US2011025123
申请日：2011-02-16
申请人： QUALCOMM INC , CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
发明人： CHEN PEISONG , WANG XIANGLIN , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , H04N7/36
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。

20. 发明申请

WO2009008897A2 EARLY RENDERING FOR FAST CHANNEL SWITCHING 审中-公开
标题翻译：用于快速通道切换的早期渲染
公开(公告)号：WO2009008897A2
公开(公告)日：2009-01-15
申请号：PCT/US2007078922
申请日：2007-09-19
申请人： QUALCOMM INC , GAO QIANG , CHEN PEISONG
发明人： GAO QIANG , CHEN PEISONG
IPC分类号： H04N7/24 , H04N5/44 , H04N19/895
CPC分类号： H04N21/44016 , H04N5/4401 , H04N19/895 , H04N21/23424 , H04N21/4307 , H04N21/4382 , H04N21/4384 , H04N21/44004
摘要： The disclosure relates to techniques for switching between channels of digital multimedia content. In particular, a decoding device decodes and renders to a display at least one frame of a segment of data prior to receiving the entire segment. In certain aspects, the decoding device may render one of the frames of the segment and freeze the rendered frame until the decoding device receives all of the frames of the segment. In other aspects, the decoding device may render frames of one or more segments at a reduced rendering rate until the receiving and rendering operations of decoding device are synchronized such that the rendering of the current segment occurs at substantially the same time as the receiving of the next segment. By rendering at least frame prior to receiving the entire segment the decoding device more quickly displays content to a user during a channel switching event.
摘要翻译：本公开涉及用于在数字多媒体内容的频道之间切换的技术。具体而言，解码设备在接收整个段之前解码并呈现至少一个数据段的帧。在某些方面，解码设备可以渲染片段的一个帧并冻结渲染的帧，直到解码设备接收到片段的全部帧。在其他方面，解码设备可以以降低的渲染速率渲染一个或多个分段的帧，直到解码设备的接收和渲染操作被同步，使得当前分段的渲染基本上与接收下一部分。通过在接收整个片段之前渲染至少帧，解码设备在频道切换事件期间更快地向用户显示内容。

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