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91. 发明授权

US09008189B2 Methods and devices for context modeling to enable modular processing 有权
标题翻译：用于上下文建模以实现模块化处理的方法和设备
公开(公告)号：US09008189B2
公开(公告)日：2015-04-14
申请号：US13354448
申请日：2012-01-20
申请人： Nguyen Nguyen , Tianying Ji , Dake He
发明人： Nguyen Nguyen , Tianying Ji , Dake He
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/60 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/463
CPC分类号： H04N19/60 , H04N19/13 , H04N19/176 , H04N19/18 , H04N19/196 , H04N19/463
摘要： Methods of encoding and decoding for video data are described for encoding or decoding coefficients for a transform unit. In particular, the significant-coefficient flags for a coefficient group are encoded and decoded based upon a context determination, and the context is determined based upon the values of neighboring flags. The neighborhood used to determine the context varies depending on whether the significant-coefficient flag to be encoded or decoded is in the right column or bottom row of the coefficient group or not. If it is in the right column or bottom row one of the alternative context neighborhoods is used to avoid relying on significant-coefficient flags in other coefficient groups except for the flags immediately adjacent the right border and bottom border of the coefficient group, and the flag diagonally to the lower-right.
摘要翻译：描述了用于视频数据的编码和解码的方法，用于对变换单元的系数进行编码或解码。特别地，基于上下文确定对系数组的有效系数标志进行编码和解码，并且基于相邻标志的值确定上下文。用于确定上下文的邻域取决于要编码或解码的有效系数标志是否在系数组的右列或底行。如果它在右列或底行中，则使用替代上下文邻域之一来避免依赖于除系数组的右边界和底边界之外的标志紧邻的其他系数组中的有效系数标志，并且标志对角线到右下角。

92. 发明授权

US08768080B2 Coding of residual data in predictive compression 有权
标题翻译：预测压缩中残留数据的编码
公开(公告)号：US08768080B2
公开(公告)日：2014-07-01
申请号：US13334345
申请日：2011-12-22
申请人： Dake He , Jin Meng
发明人： Dake He , Jin Meng
IPC分类号： G06K9/36
CPC分类号： H04N19/176 , H04N19/124 , H04N19/13 , H04N19/136 , H04N19/18 , H04N19/21 , H04N19/48 , H04N19/50 , H04N19/61 , H04N19/91
摘要： Encoding input data includes: generating a first block of coefficients based on a transform performed on a residual block of data for multiple pixels; generating reference information based on a reference block of data corresponding to the residual block of data; and determining losslessly decodable code values representing the first block of coefficients based on the reference information.
摘要翻译：编码输入数据包括：基于对多个像素的剩余数据块执行的变换来生成第一系数块; 基于与所述剩余数据块相对应的数据的参考块生成参考信息; 以及基于所述参考信息确定表示所述第一系数块的无损解码代码值。

93. 发明授权

US08761240B2 Methods and devices for data compression using context-based coding order 失效
标题翻译：使用基于上下文的编码顺序进行数据压缩的方法和设备
公开(公告)号：US08761240B2
公开(公告)日：2014-06-24
申请号：US13181576
申请日：2011-07-13
申请人： Gaelle Christine Martin-Cocher , Dake He , Gergely Ferenc Korodi
发明人： Gaelle Christine Martin-Cocher , Dake He , Gergely Ferenc Korodi
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/00951 , H03M7/40 , H03M7/4018 , H03M7/6023 , H04N19/129 , H04N19/13 , H04N19/136 , H04N19/184 , H04N19/1887 , H04N19/61 , H04N19/91
摘要： A method is presented for entropy coding data using an entropy coder to encode an input sequence. A context model is used to determine the context of each symbol and a probability estimation is made for each symbol. A method is presented for revising the coding order to be context-based, grouping symbols consecutively on the basis that they have a common context. A method is presented for entropy decoding a bitstream of encoded data encoded using a context-based coding order.
摘要翻译：提出了一种使用熵编码器熵编码数据来编码输入序列的方法。使用上下文模型来确定每个符号的上下文，并为每个符号进行概率估计。提出了一种用于将编码顺序修改为基于上下文的方法，其基于它们具有公共上下文来连续分组符号。提出了一种用于熵解码使用基于上下文的编码顺序编码的编码数据的比特流的方法。

94. 发明授权

US08633837B2 Encoding and decoding methods and devices employing dual codesets 有权
标题翻译：使用双重代码集的编码和解码方法和设备
公开(公告)号：US08633837B2
公开(公告)日：2014-01-21
申请号：US13180616
申请日：2011-07-12
申请人： Gergely Ferenc Korodi , Dake He
发明人： Gergely Ferenc Korodi , Dake He
IPC分类号： H03M7/40
CPC分类号： H03M7/4093
摘要： A method for encoding an input sequence of symbols to produce a bitstream and a method of decoding the bitstream to generate a reconstructed binary sequence. Encoding employs an encoding tree having primary codewords associated with leaf nodes and secondary codewords associated with internal nodes. A flush event may cause output of secondary codewords. A context model is used to select an encoding tree corresponding to an estimated probability at the encoder. The same context model is used by the decoder to select a decoding tree. The decoder interleaves bits from decoded bit sequences associated with different estimated probabilities based on the context model.
摘要翻译：用于对输入的符号序列进行编码以产生比特流的方法以及对比特流进行解码以产生重构的二进制序列的方法。编码使用具有与叶节点相关联的主码字和与内部节点相关联的次码字的编码树。刷新事件可能导致次代码字的输出。上下文模型用于在编码器处选择与估计概率相对应的编码树。解码器使用相同的上下文模型来选择解码树。解码器基于上下文模型来对与不同估计概率相关联的解码比特序列进行交织。

95. 发明授权

US08553769B2 Method and device for improved multi-layer data compression 有权
标题翻译：改进多层数据压缩的方法和设备
公开(公告)号：US08553769B2
公开(公告)日：2013-10-08
申请号：US13009002
申请日：2011-01-19
申请人： Dake He , Mingkai Shao
发明人： Dake He , Mingkai Shao
IPC分类号： H04B1/66
CPC分类号： H04N19/33 , H04N19/109 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/36
摘要： An encoder and method for encoding data in a scalable data compression format are described. In particular, process for encoding spatially scalable video are described in which the base layer uses downscaled residuals from a full-resolution encoding of the video in its motion estimation process. The downscaled residuals may also be used in the coding mode selection process at the base layer.
摘要翻译：描述用于以可伸缩数据压缩格式编码数据的编码器和方法。具体地，描述了用于编码空间可缩放视频的过程，其中基本层在其运动估计处理中使用来自视频的全分辨率编码的缩小残差。缩小的残差也可以用于基层的编码模式选择过程。

96. 发明授权

US08494053B2 Method and apparatus of temporal filtering for side information interpolation and extrapolation in Wyner-Ziv video compression systems 失效
标题翻译： Wyner-Ziv视频压缩系统中边信息插值和外插时域滤波的方法和装置
公开(公告)号：US08494053B2
公开(公告)日：2013-07-23
申请号：US11619567
申请日：2007-01-03
申请人： Dake He , Ligang Lu
发明人： Dake He , Ligang Lu
IPC分类号： H04N11/02
CPC分类号： H04N19/395 , G06T7/246 , G06T2207/10016 , G06T2207/20021 , H04N5/145 , H04N19/117 , H04N19/137 , H04N19/176 , H04N19/182 , H04N19/51 , H04N19/577 , H04N19/587 , H04N19/82 , H04N19/90
摘要： A method (and system) for video coding includes receiving a first reference frame having a first pixel value at a first pixel position, a second reference frame having a second pixel value at a second pixel position, and a third reference frame having a third pixel value at a third pixel position, determining a first motion vector between the first pixel position and the second pixel position, determining a second motion vector between the second pixel position and the third pixel position, and determining a fourth pixel value for a fourth frame based upon a linear or nonlinear combination of the first pixel value, the second pixel value, and the third pixel value.
摘要翻译：一种用于视频编码的方法（和系统）包括：在第一像素位置处接收具有第一像素值的第一参考帧，在第二像素位置处具有第二像素值的第二参考帧，以及具有第三像素的第三参考帧确定第一像素位置和第二像素位置之间的第一运动矢量，确定第二像素位置与第三像素位置之间的第二运动矢量，以及确定第四像素位置的第四像素值在第一像素值，第二像素值和第三像素值的线性或非线性组合之间。

97. 发明申请

US20120281750A1 METHOD AND SYSTEM FOR CODING MODE SELECTION IN VIDEO COMPRESSION SYSTEMS 有权
标题翻译：在视频压缩系统中对模式选择进行编码的方法和系统
公开(公告)号：US20120281750A1
公开(公告)日：2012-11-08
申请号：US13545414
申请日：2012-07-10
申请人： Dake He , Ashish Jagmohan , Ligang Lu
发明人： Dake He , Ashish Jagmohan , Ligang Lu
IPC分类号： H04N7/26 , H04N7/32
CPC分类号： H04N19/395 , H04N19/103 , H04N19/18 , H04N19/48
摘要： A method and system are disclosed for selecting a mode to encode video data. The method comprises the steps of (a) transforming a source video frame into a set of coefficients, (b) partitioning said set of coefficients into a plurality of subsets of the coefficients on the basis of probability statistics corresponding to a plurality of encoding modes, wherein each of said subsets is identified for encoding by one of the plurality of encoding modes. The method comprises the further steps of (c) for each of the plurality of subsets of coefficients, computing defined parameters of an associated probability distribution for said subset, and (d) repeating steps (b) and (c) until a predetermined termination condition is satisfied. When this predetermined termination condition is satisfied, the subsets of coefficients, as they exist at that time, are output to a video encoder, which preferably is a Wyner-Ziv encoder.
摘要翻译：公开了一种用于选择对视频数据进行编码的模式的方法和系统。该方法包括以下步骤：（a）将源视频帧变换成一组系数，（b）基于对应于多个编码模式的概率统计，将所述系数集合划分成系数的多个子集，其中所述子集中的每一个被识别用于通过所述多个编码模式之一进行编码。该方法还包括以下步骤：（c）针对所述多个系数子集中的每一个，计算所述子集的关联概率分布的定义参数，以及（d）重复步骤（b）和（c）直到预定终止条件满意当满足该预定终止条件时，如同在那时存在的系数子集被输出到视频编码器，其优选地是Wyner-Ziv编码器。

98. 发明授权

US08295356B2 Method and system for coding mode selection in video compression systems 有权
标题翻译：视频压缩系统中编码模式选择的方法和系统
公开(公告)号：US08295356B2
公开(公告)日：2012-10-23
申请号：US12044027
申请日：2008-03-07
申请人： Dake He , Ashish Jagmohan , Ligang Lu
发明人： Dake He , Ashish Jagmohan , Ligang Lu
IPC分类号： H04N11/02
CPC分类号： H04N19/395 , H04N19/103 , H04N19/18 , H04N19/48
摘要： A method and system are disclosed for selecting a mode to encode video data. The method comprises the steps of (a) transforming a source video frame into a set of coefficients, (b) partitioning said set of coefficients into a plurality of subsets of the coefficients on the basis of probability statistics corresponding to a plurality of encoding modes, wherein each of said subsets is identified for encoding by one of the plurality of encoding modes. The method comprises the further steps of (c) for each of the plurality of subsets of coefficients, computing defined parameters of an associated probability distribution for said subset, and (d) repeating steps (b) and (c) until a predetermined termination condition is satisfied. When this predetermined termination condition is satisfied, the subsets of coefficients, as they exist at that time, are output to a video encoder, which preferably is a Wyner-Ziv encoder.
摘要翻译：公开了一种用于选择对视频数据进行编码的模式的方法和系统。该方法包括以下步骤：（a）将源视频帧变换成一组系数，（b）基于对应于多个编码模式的概率统计，将所述系数集合划分成系数的多个子集，其中所述子集中的每一个被识别用于通过所述多个编码模式之一进行编码。该方法还包括以下步骤：（c）针对所述多个系数子集中的每一个，计算所述子集的关联概率分布的定义参数，以及（d）重复步骤（b）和（c）直到预定终止条件满意当满足该预定终止条件时，如同在那时存在的系数子集被输出到视频编码器，其优选地是Wyner-Ziv编码器。

99. 发明申请

US20120170857A1 CODING OF RESIDUAL DATA IN PREDICTIVE COMPRESSION 有权
标题翻译：预测压缩中残留数据的编码
公开(公告)号：US20120170857A1
公开(公告)日：2012-07-05
申请号：US13334345
申请日：2011-12-22
申请人： Dake He , Jin Meng
发明人： Dake He , Jin Meng
IPC分类号： G06K9/36
CPC分类号： H04N19/176 , H04N19/124 , H04N19/13 , H04N19/136 , H04N19/18 , H04N19/21 , H04N19/48 , H04N19/50 , H04N19/61 , H04N19/91
摘要： Encoding input data includes: generating a first block of coefficients based on a transform performed on a residual block of data for multiple pixels; generating reference information based on a reference block of data corresponding to the residual block of data; and determining losslessly decodable code values representing the first block of coefficients based on the reference information.
摘要翻译：编码输入数据包括：基于对多个像素的剩余数据块执行的变换来生成第一系数块; 基于与所述剩余数据块相对应的数据的参考块生成参考信息; 以及基于所述参考信息确定表示所述第一系数块的无损解码代码值。

100. 发明申请

US20120170647A1 CODING OF RESIDUAL DATA IN PREDICTIVE COMPRESSION 有权
标题翻译：预测压缩中残留数据的编码
公开(公告)号：US20120170647A1
公开(公告)日：2012-07-05
申请号：US13334330
申请日：2011-12-22
申请人： Dake He , Jin Meng
发明人： Dake He , Jin Meng
IPC分类号： H04N7/30
CPC分类号： H04N19/48 , H04N19/13 , H04N19/136 , H04N19/18 , H04N19/61 , H04N19/91
摘要： Encoding input data including one or more frames includes: generating a residual block based on a difference between a first block of data for multiple pixels in a first frame and a second block of data derived from information in the input data; generating a first block of coefficients based on a transform performed on the residual block; generating reference information based on the second block of data; and determining portions of a code value representing respective portions of the first block of coefficients based on at least one value derived from at least a portion of the reference information.
摘要翻译：对包括一个或多个帧的输入数据进行编码包括：基于第一帧中的多个像素的第一数据块和从输入数据中的信息导出的第二数据块之间的差产生残差块; 基于对所述残余块执行的变换来生成第一系数块; 基于所述第二数据块生成参考信息; 以及基于从所述参考信息的至少一部分导出的至少一个值来确定表示所述第一系数块的各个部分的代码值的部分。

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