公开(公告)号：US20100097250A1

公开(公告)日：2010-04-22

申请号：US12572217

申请日：2009-10-01

申请人： Mehmet Umut Demircin ,  Vivienne Sze ,  Madhukar Budagavi

发明人： Mehmet Umut Demircin ,  Vivienne Sze ,  Madhukar Budagavi

IPC分类号： H03M7/00

CPC分类号： H03M7/48 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/61

摘要： A method of video decoding is provided that includes receiving a data stream comprising a sequence of syntax elements that were compressed using context-adaptive binary arithmetic coding (CABAC), such that the encoding of each bin of a bin string representative of a syntax element was performed by arithmetic encoding. Two consecutive bins of a syntax element are decoded in parallel. Speculative computation and prefetching is used to reduce the critical path and thereby improve processing speed.

摘要翻译： 提供了一种视频解码方法，包括接收包含使用上下文自适应二进制算术编码（CABAC）压缩的语法元素序列的数据流，使得表示语法元素的bin字符串的每个bin的编码为 通过算术编码进行。 并行解码两个连续的语法元素区块。 推算计算和预取用于减少关键路径，从而提高处理速度。

公开(公告)号：US20120014454A1

公开(公告)日：2012-01-19

申请号：US13184226

申请日：2011-07-15

申请人： Madhukar Budagavi ,  Mehmet Umut Demircin ,  Vivienne Sze

发明人： Madhukar Budagavi ,  Mehmet Umut Demircin ,  Vivienne Sze

IPC分类号： H04N7/26

CPC分类号： H04N19/436 ,  H04N19/13 ,  H04N19/139 ,  H04N19/176 ,  H04N19/91

摘要： A method and apparatus for parallel context processing for example for high coding efficient entropy coding in HEVC. The method comprising retrieving syntax element relating to a block of an image, grouping at least two bins belonging to similar context based on the syntax element, and coding the grouped bins in parallel.

摘要翻译： 用于并行上下文处理的方法和装置，例如用于HEVC中的高编码高效熵编码。 该方法包括检索与图像块相关的语法元素，基于语法元素对属于相似上下文的至少两个分组进行分组，并并行编码分组的分组。

公开(公告)号：US07932843B2

公开(公告)日：2011-04-26

申请号：US12572217

申请日：2009-10-01

申请人： Mehmet Umut Demircin ,  Vivienne Sze ,  Madhukar Budagavi

发明人： Mehmet Umut Demircin ,  Vivienne Sze ,  Madhukar Budagavi

IPC分类号： H03M7/00

CPC分类号： H03M7/48 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/61

摘要： A method of video decoding is provided that includes receiving a data stream comprising a sequence of syntax elements that were compressed using context-adaptive binary arithmetic coding (CABAC), such that the encoding of each bin of a bin string representative of a syntax element was performed by arithmetic encoding. Two consecutive bins of a syntax element are decoded in parallel. Speculative computation and prefetching is used to reduce the critical path and thereby improve processing speed.

摘要翻译： 提供了一种视频解码方法，包括接收包含使用上下文自适应二进制算术编码（CABAC）压缩的语法元素序列的数据流，使得表示语法元素的bin字符串的每个bin的编码为 通过算术编码进行。 并行解码两个连续的语法元素区块。 推算计算和预取用于减少关键路径，从而提高处理速度。

公开(公告)号：US09591320B2

公开(公告)日：2017-03-07

申请号：US13184226

申请日：2011-07-15

申请人： Madhukar Budagavi ,  Mehmet Umut Demircin ,  Vivienne Sze

发明人： Madhukar Budagavi ,  Mehmet Umut Demircin ,  Vivienne Sze

IPC分类号： H04N11/02 ,  H04N19/436 ,  H04N19/91

CPC分类号： H04N19/436 ,  H04N19/13 ,  H04N19/139 ,  H04N19/176 ,  H04N19/91

摘要： A method and apparatus for encoding and decoding video data. Including context encoding or decoding at least two bins of each significant transform coefficient in an array of transform coefficients and bypass encoding or decoding a sign indicator for each significant transform coefficient in an array related to a block of an image.

摘要翻译： 一种用于对视频数据进行编码和解码的方法和装置。 包括上下文编码或解码变换系数阵列中的每个有效变换系数的至少两个分组，并且对与图像的块相关的阵列中的每个有效变换系数进行旁路编码或解码符号指示符。

公开(公告)号：US10070152B2

公开(公告)日：2018-09-04

申请号：US13593973

申请日：2012-08-24

申请人： Vivienne Sze ,  Woo-Shik Kim ,  Madhukar Budagavi ,  Do-Kyoung Kwon ,  Minhua Zhou

发明人： Vivienne Sze ,  Woo-Shik Kim ,  Madhukar Budagavi ,  Do-Kyoung Kwon ,  Minhua Zhou

IPC分类号： H04N7/26 ,  H04N19/86 ,  H04N19/70 ,  H04N19/117 ,  H04N19/463 ,  H04N19/82 ,  H04N19/80 ,  H04N19/91

摘要： A method for sample adaptive offset (SAO) filtering and SAO parameter signaling in a video encoder is provided that includes determining SAO parameters for largest coding units (LCUs) of a reconstructed picture, wherein the SAO parameters include an indicator of an SAO filter type and a plurality of SAO offsets, applying SAO filtering to the reconstructed picture according to the SAO parameters, and entropy encoding LCU specific SAO information for each LCU of the reconstructed picture in an encoded video bit stream, wherein the entropy encoded LCU specific SAO information for the LCUs is interleaved with entropy encoded data for the LCUs in the encoded video bit stream. Determining SAO parameters may include determining the LCU specific SAO information to be entropy encoded for each LCU according to an SAO prediction protocol.

公开(公告)号：US20120287989A1

公开(公告)日：2012-11-15

申请号：US13470352

申请日：2012-05-13

申请人： Madhukar Budagavi ,  Vivienne Sze

发明人： Madhukar Budagavi ,  Vivienne Sze

IPC分类号： H04N7/30

CPC分类号： G06F17/147 ,  H04N19/122 ,  H04N19/134 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/42 ,  H04N19/46 ,  H04N19/48 ,  H04N19/61

摘要： A method for decoding an encoded video bit stream in a video decoder is provided that includes determining a scan pattern type for a transform block to be decoded, decoding a column position X and a row position Y of a last non-zero coefficient in the transform block from the encoded video bit stream, selecting a column-row inverse transform order when the scan pattern type is a first type, selecting a row-column inverse transform order when the scan pattern type is a second type, and performing one dimensional (1D) inverse discrete cosine transformation (IDCT) computations according to the selected transform order to inversely transform the transform block to generate a residual block.

摘要翻译： 提供了一种用于对视频解码器中的编码视频比特流进行解码的方法，包括确定用于要解码的变换块的扫描模式类型，解码列位置X和变换中的最后非零系数的行位置Y 从编码视频比特流中选择扫描图案类型是第一类型时的列行逆变换顺序，当扫描图案类型是第二类型时选择行列逆变换顺序，并且执行一维（1D ）逆离散余弦变换（IDCT）计算，以逆变换变换块以产生残差块。

公开(公告)号：US20120082233A1

公开(公告)日：2012-04-05

申请号：US13250689

申请日：2011-09-30

申请人： Vivienne Sze ,  Madhukar Budagavi

发明人： Vivienne Sze ,  Madhukar Budagavi

IPC分类号： H04N7/30

CPC分类号： H04N19/129 ,  H04N19/13 ,  H04N19/18 ,  H04N19/43 ,  H04N19/60 ,  H04N19/61

摘要： A method and apparatus for encoding bit code utilizing context dependency simplification to reduce dependent scans. The method includes retrieving at least one 2 dimensional array of transform coefficient, transforming the at least one 2 dimensional array of the significance map of the transform coefficient to a 1 dimensional coefficient scanning and determining at least one of scan direction, coding unit type and slice type assigned to transform coefficient, selecting neighbors based on at least one of scan direction and coding unit type and slice type, computing context index based on the values of the selected neighbors for context selection, and performing arithmetic coding to generate coded bit utilizing the computed context index and binarization.

摘要翻译： 一种使用上下文相关性简化来编码比特码以减少依赖扫描的方法和装置。 该方法包括检索变换系数的至少一个二维阵列，将变换系数的有效图的至少一个二维阵列变换为一维系数扫描，并确定扫描方向，编码单元类型和切片中的至少一个 分配给变换系数的类型，基于扫描方向和编码单元类型和片类型中的至少一个选择邻居，基于用于上下文选择的所选择的邻居的值来计算上下文索引，以及执行算术编码以利用所计算的 上下文索引和二值化。

公开(公告)号：US10123053B2

公开(公告)日：2018-11-06

申请号：US13478899

申请日：2012-05-23

申请人： Vivienne Sze ,  Madhukar Budagavi

发明人： Vivienne Sze ,  Madhukar Budagavi

IPC分类号： H04N19/463 ,  H04N19/91 ,  H04N19/13 ,  H04N19/61 ,  H04N19/107 ,  H04N19/86

摘要： A method for encoding a video sequence in a video encoder to generate a compressed video bit stream is provided that includes binarizing a plurality of syntax elements, wherein each binarized syntax element comprises a string of one or more binary symbols (bins), wherein a bin is one selected from a context-coded bin and bypass bin, encoding the context-coded bins of the binarized syntax elements using binary arithmetic encoding, and adding the bypass bins of the binarized syntax elements to the compressed video bit stream with no encoding.

公开(公告)号：US09154801B2

公开(公告)日：2015-10-06

申请号：US13250689

申请日：2011-09-30

申请人： Vivienne Sze ,  Madhukar Budagavi

发明人： Vivienne Sze ,  Madhukar Budagavi

IPC分类号： H04N19/13 ,  H04N19/43 ,  H04N19/61

CPC分类号： H04N19/129 ,  H04N19/13 ,  H04N19/18 ,  H04N19/43 ,  H04N19/60 ,  H04N19/61

摘要： A method and apparatus for encoding video data. At least a portion of a two dimensional array of transform coefficients representing a portion of video data is re-ordered to a one dimensional array of data by diagonally scanning the portion in at least two scan lines. Each scan line directed in a single common diagonal direction. Syntax elements representing at least a portion of the one dimensional array of data are then coded and transmitted.

摘要翻译： 一种用于编码视频数据的方法和装置。 表示视频数据的一部分的变换系数的二维阵列的至少一部分通过在至少两条扫描线中对角扫描来重新排列成一维数据阵列。 每个扫描线指向一个共同的对角线方向。 然后对表示一维数据数组的至少一部分的语法元素进行编码和发送。

公开(公告)号：US20120082215A1

公开(公告)日：2012-04-05

申请号：US13250749

申请日：2011-09-30

申请人： Vivienne Sze ,  Madhukar Budagavi

发明人： Vivienne Sze ,  Madhukar Budagavi

IPC分类号： H04N7/26 ,  H03M7/00

CPC分类号： H04N19/436 ,  H04N19/13

摘要： A method of entropy coding in a video encoder is provided that includes assigning a first bin to a first single-probability bin encoder based on a probability state of the first bin, wherein the first single-probability bin encoder performs binary arithmetic coding based on a first fixed probability state, assigning a second bin to a second single-probability bin encoder based on a probability state of the second bin, wherein the second single-probability bin encoder performs binary arithmetic coding based on a second fixed probability state different from the first fixed probability state, and coding the first bin in the first single-probability bin encoder and the second bin in the second single-probability bin encoder in parallel, wherein the first single-probability bin encoder uses a first rLPS table for the first fixed probability state and the second single-probability bin encoder uses a second rLPS table for the second fixed probability state.

摘要翻译： 提供了一种视频编码器中的熵编码方法，包括：基于第一个存储区的概率状态，将第一个存储区分配给第一个单一概率存储器编码器，其中第一个单概率存储器编码器基于 第一固定概率状态，基于所述第二仓的概率状态，将第二仓分配给第二单一概率仓编码器，其中所述第二单概率箱编码器执行基于与所述第一单概率箱编码器不同的第二固定概率状态的二进制算术编码 固定概率状态，并且并行地编码第一单概率bin编码器中的第一单个概率bin编码器和第二bin中的第一bin，其中第一单概率bin编码器使用第一固定概率的第一rLPS表 状态，第二单概率bin编码器使用第二固定概率状态的第二rLPS表。