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1. 发明授权

US11245912B2 Fast motion estimation for hierarchical coding structures 有权
公开(公告)号：US11245912B2
公开(公告)日：2022-02-08
申请号：US13548100
申请日：2012-07-12
申请人： Hyung Joon Kim , Minhua Zhou , Akira Osamoto , Hideo Tamama
发明人： Hyung Joon Kim , Minhua Zhou , Akira Osamoto , Hideo Tamama
IPC分类号： H04N19/192 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/51 , H04N19/593 , H04N19/103
摘要： A method for motion estimation is provided that includes determining a first motion vector for a first child coding unit (CU) of a parent CU and a second motion vector for a second child CU of the parent CU, wherein the first child CU, the second child CU, and the parent CU are in a CU hierarchy, wherein the first and second child CUs are smallest size CUs in the CU hierarchy, and wherein a first motion search type is used to determine the first motion vector and the second motion vector, selecting the first and second motion vectors as candidate predictors for the parent CU, selecting a predictor for a prediction unit (PU) of the first parent CU from the candidate predictors, and refining the predictor using a second motion search type to determine a motion vector for the PU.

2. 发明授权

US10440373B2 Method and apparatus for coding unit partitioning 有权
公开(公告)号：US10440373B2
公开(公告)日：2019-10-08
申请号：US13548085
申请日：2012-07-12
申请人： Hyung Joon Kim , Minhua Zhou , Akira Osamoto , Hideo Tamama
发明人： Hyung Joon Kim , Minhua Zhou , Akira Osamoto , Hideo Tamama
IPC分类号： H04N7/26 , H04N19/192 , H04N19/176 , H04N19/119 , H04N19/147 , H04N19/51 , H04N19/593 , H04N19/103
摘要： A method for coding unit partitioning in a video encoder is provided that includes performing intra-prediction on each permitted coding unit (CU) in a CU hierarchy of a largest coding unit (LCU) to determine an intra-prediction coding cost for each permitted CU, storing the intra-prediction coding cost for each intra-predicted CU in memory, and performing inter-prediction, prediction mode selection, and CU partition selection on each permitted CU in the CU hierarchy to determine a CU partitioning for encoding the LCU, wherein the stored intra-prediction coding costs for the CUs are used.

3. 发明申请

US20130016783A1 Method and Apparatus for Coding Unit Partitioning 审中-公开
标题翻译：编码单元分区的方法和装置
公开(公告)号：US20130016783A1
公开(公告)日：2013-01-17
申请号：US13548085
申请日：2012-07-12
申请人： Hyung Joon Kim , Minhua Zhou , Akira Osamoto , Hideo Tamama
发明人： Hyung Joon Kim , Minhua Zhou , Akira Osamoto , Hideo Tamama
IPC分类号： H04N7/32
CPC分类号： H04N19/192 , H04N19/103 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/51 , H04N19/593
摘要： A method for coding unit partitioning in a video encoder is provided that includes performing intra-prediction on each permitted coding unit (CU) in a CU hierarchy of a largest coding unit (LCU) to determine an intra-prediction coding cost for each permitted CU, storing the intra-prediction coding cost for each intra-predicted CU in memory, and performing inter-prediction, prediction mode selection, and CU partition selection on each permitted CU in the CU hierarchy to determine a CU partitioning for encoding the LCU, wherein the stored intra-prediction coding costs for the CUs are used.
摘要翻译：提供一种在视频编码器中编码单元划分的方法，其包括在最大编码单元（LCU）的CU分级中的每个允许编码单元（CU）上执行帧内预测，以确定每个允许CU的帧内预测编码成本将每个内部预测CU的帧内预测编码成本存储在存储器中，并且在CU分级中的每个允许的CU上执行帧间预测，预测模式选择和CU分区选择，以确定用于对LCU进行编码的CU划分，其中使用CU的存储的帧内预测编码成本。

4. 发明申请

US20130016787A1 Fast Motion Estimation For Hierarchical Coding Structures 审中-公开
标题翻译：分层编码结构的快速运动估计
公开(公告)号：US20130016787A1
公开(公告)日：2013-01-17
申请号：US13548100
申请日：2012-07-12
申请人： Hyung Joon Kim , Minhua Zhou , Akira Osamoto , Hideo Tamama
发明人： Hyung Joon Kim , Minhua Zhou , Akira Osamoto , Hideo Tamama
IPC分类号： H04N7/32
CPC分类号： H04N19/192 , H04N19/103 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/51 , H04N19/593
摘要： A method for motion estimation is provided that includes determining a first motion vector for a first child coding unit (CU) of a parent CU and a second motion vector for a second child CU of the parent CU, wherein the first child CU, the second child CU, and the parent CU are in a CU hierarchy, wherein the first and second child CUs are smallest size CUs in the CU hierarchy, and wherein a first motion search type is used to determine the first motion vector and the second motion vector, selecting the first and second motion vectors as candidate predictors for the parent CU, selecting a predictor for a prediction unit (PU) of the first parent CU from the candidate predictors, and refining the predictor using a second motion search type to determine a motion vector for the PU.
摘要翻译：提供了一种用于运动估计的方法，包括确定母CU的第一子编码单元（CU）的第一运动矢量和母CU的第二子CU的第二运动矢量，其中第一子CU，第二子CU 子CU和母CU在CU层级中，其中第一和第二子CU是CU层级中的最小尺寸CU，并且其中使用第一运动搜索类型来确定第一运动矢量和第二运动矢量，选择第一运动矢量和第二运动矢量作为母CU的候选预测器，从候选预测器中选择第一母CU的预测单元（PU）的预测器，并且使用第二运动搜索类型来精简预测器，以确定运动矢量为PU。

5. 发明申请

US20110142135A1 Adaptive Use of Quarter-Pel Motion Compensation 审中-公开
标题翻译：适应性使用四分之一运动补偿
公开(公告)号：US20110142135A1
公开(公告)日：2011-06-16
申请号：US12637742
申请日：2009-12-14
申请人： Madhukar Budagavi , Minhua Zhou , Hyung Joon Kim
发明人： Madhukar Budagavi , Minhua Zhou , Hyung Joon Kim
IPC分类号： H04N7/26
CPC分类号： H04N19/523 , H04N19/147
摘要： A method of encoding a digital video sequence is provided that includes disabling quarter-pel motion compensation for a first sequence of blocks in the digital video sequence, computing an average half-pel cost for the first sequence of blocks, computing an average quarter-pel cost for the first sequence of blocks, and enabling quarter-pel motion compensation for a second sequence of blocks in the digital video sequence based on a comparison of the average half-pel cost and the average quarter-pel cost.
摘要翻译：提供了一种对数字视频序列进行编码的方法，其包括禁用数字视频序列中的第一块块的四分之一像素运动补偿，计算第一序列块的平均半像素成本，计算平均四分之一像素基于平均半像素成本和平均四分之一成本的比较，为数字视频序列中的第二块块提供四分之一像素运动补偿。

6. 发明授权

US08885714B2 Method and system for intracoding in video encoding 有权
标题翻译：视频编码内编码的方法和系统
公开(公告)号：US08885714B2
公开(公告)日：2014-11-11
申请号：US12982482
申请日：2010-12-30
申请人： Madhukar Budagavi , Minhua Zhou
发明人： Madhukar Budagavi , Minhua Zhou
IPC分类号： H04N7/12 , H04N19/159 , H04N19/61 , H04N19/593 , H04N19/176 , H04N19/122
CPC分类号： H04N19/182 , H04N19/11 , H04N19/122 , H04N19/159 , H04N19/176 , H04N19/593 , H04N19/61
摘要： A method of intra-coding blocks of pixels in a digital video sequence is provided that includes selecting a block transform of a plurality of block transforms according to a spatial prediction mode used in generating a block of pixel residual values from a block of pixels, wherein the block transform is based on a single directional transform matrix predetermined for the spatial prediction mode and is a same size as the block of pixel values, applying the block transform to the block of pixel residual values to generate transform coefficients of the residual pixel values, and entropy coding the generated transform coefficients.
摘要翻译：提供了一种对数字视频序列中的像素块进行帧内编码的方法，其包括根据用于从像素块生成像素残差块的空间预测模式来选择多个块变换的块变换，其中块变换基于为空间预测模式预定的单一方向变换矩阵，并且具有与像素值相同的大小，将块变换应用于像素残差值块以产生残余像素值的变换系数，并对所生成的变换系数进行熵编码。

7. 发明申请

US20130128949A1 Early Stage Slice Cap Decision in Video Coding 有权
标题翻译：视频编码中的早期切片决策
公开(公告)号：US20130128949A1
公开(公告)日：2013-05-23
申请号：US13301774
申请日：2011-11-21
申请人： Osman Gokhan Sezer , Mehmet Umut Demircin , Minhua Zhou , Pramod Kumar Swami , Uday Kiran Pudipeddi
发明人： Osman Gokhan Sezer , Mehmet Umut Demircin , Minhua Zhou , Pramod Kumar Swami , Uday Kiran Pudipeddi
IPC分类号： H04N7/32 , H04N7/64 , H04N7/26
CPC分类号： H04N19/65 , H04N19/119 , H04N19/149 , H04N19/174 , H04N19/50
摘要： A method for making a slice cap decision during encoding of a video sequence in a video encoding pipe is provided that includes determining a prediction mode for a macroblock, computing an estimated encoded size of the macroblock based on an adaptive macroblock size estimation model, and making a slice cap decision for a current slice based on the estimated encoded macroblock size, wherein the slice cap decision is made prior to entropy coding the macroblock.
摘要翻译：提供一种在视频编码管道中的视频序列的编码期间进行切片帽决定的方法，包括：确定宏块的预测模式，基于自适应宏块尺寸估计模型计算宏块的估计编码大小，基于估计的编码宏块大小对当前切片进行切片帽决定，其中在对宏块进行熵编码之前进行切片帽决定。

8. 发明申请

US20120177122A1 METHOD, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR DETERMINING A MOTION VECTOR 有权
标题翻译：用于确定运动矢量的方法，系统和计算机程序产品
公开(公告)号：US20120177122A1
公开(公告)日：2012-07-12
申请号：US13344778
申请日：2012-01-06
申请人： Minhua Zhou
发明人： Minhua Zhou
IPC分类号： H04N7/32
CPC分类号： H04N19/52
摘要： A prediction unit is identified within a picture of a video sequence. The prediction unit is bordered by neighboring prediction units within the picture. The neighboring prediction units include first and second neighboring prediction units that are separated from one another by at least a third neighboring prediction unit. A subset of the neighboring prediction units is scanned to identify an MVP candidate. The subset includes at least the first and second neighboring prediction units and excludes at least the third neighboring prediction unit. An encoder calculates a difference between a motion vector of the MVP candidate and a motion vector of the prediction unit, and encodes the difference and an index to identify the MVP candidate. A decoder decodes the difference, and calculates the motion vector of the prediction unit by adding the difference to the motion vector of the MVP candidate.
摘要翻译：在视频序列的图片内识别预测单元。预测单元与图片内的相邻预测单元相邻。相邻预测单元包括由至少第三相邻预测单元彼此分离的第一和第二相邻预测单元。扫描邻近预测单元的子集以识别MVP候选。该子集至少包括第一和第二相邻预测单元，并且至少排除第三相邻预测单元。编码器计算MVP候选的运动矢量和预测单元的运动矢量之间的差，并对该差异和索引进行编码以识别MVP候选。解码器对该差异进行解码，并且通过将该差与MVP候选的运动矢量相加来计算预测单元的运动矢量。

9. 发明申请

US20120140815A1 Quantization Matrix Compression in Video Coding 有权
标题翻译：视频编码中的量化矩阵压缩
公开(公告)号：US20120140815A1
公开(公告)日：2012-06-07
申请号：US13305560
申请日：2011-11-28
申请人： Minhua Zhou , Vivienne Sze
发明人： Minhua Zhou , Vivienne Sze
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H04L65/4069 , H04L65/607 , H04N19/105 , H04N19/117 , H04N19/126 , H04N19/176 , H04N19/184 , H04N19/463 , H04N19/59 , H04N19/60 , H04N19/61 , H04N19/85
摘要： A method of quantization matrix compression in a video encoder is provided that includes preprocessing a quantization matrix by performing at least one selected from down-sampling the quantization matrix and imposing 135 degree symmetry on the quantization matrix, performing zigzag scanning on the pre-processed quantization matrix to generate a one dimensional (1D) sequence, predicting the 1D sequence to generate a residual 1D sequence, and coding the residual 1D sequence using kth order exp-Golomb coding to generate a compressed quantization matrix, wherein k≧0.
摘要翻译：提供了一种视频编码器中的量化矩阵压缩的方法，包括：通过执行从量化矩阵下采样和对量化矩阵施加135度对称性中选择的至少一个来对量化矩阵进行预处理，对预处理的量化执行Z字形扫描矩阵以产生一维（1D）序列，预测1D序列以产生残差1D序列，并使用第k阶exp-Golomb编码对剩余1D序列进行编码，以产生压缩量化矩阵，其中k≥0。

10. 发明申请

US20110216834A1 Fixed Length Coding Based Image Data Compression 有权
标题翻译：基于固定长度编码的图像数据压缩
公开(公告)号：US20110216834A1
公开(公告)日：2011-09-08
申请号：US13021405
申请日：2011-02-04
申请人： Minhua Zhou
发明人： Minhua Zhou
IPC分类号： H04N7/12
CPC分类号： H04N7/12
摘要： A method of compressing an image data block is provided that includes computing a pixel residual for each pixel in the image data block except a non-residual pixel, computing a compression level for the image data block based on a minimum pixel residual value and a maximum pixel residual value of the pixel residuals, encoding a compression flag for the image data block, wherein the compression flag includes an indicator identifying the compression level and a first portion of bits from the non-residual pixel, and generating a compressed block comprising a second portion of bits from the non-residual pixel and the pixel residuals encoded using fixed length coding based on the compression level.
摘要翻译：提供一种压缩图像数据块的方法，包括：计算除了非残差像素之外的图像数据块中的每个像素的像素残差，基于最小像素残差值和最大像素残差计算图像数据块的压缩级别对所述图像数据块进行压缩标志的编码，其中，所述压缩标志包括识别所述压缩级别的指示符和来自所述非残差像素的位的第一部分，以及生成包含第二数据块的压缩块来自非残差像素的位的部分和使用基于压缩级的固定长度编码进行编码的像素残差。

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