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。

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。

公开(公告)号：US08487791B2

公开(公告)日：2013-07-16

申请号：US12707797

申请日：2010-02-18

申请人： Gergely Ferenc Korodi ,  Dake He ,  En-Hui Yang

发明人： Gergely Ferenc Korodi ,  Dake He ,  En-Hui Yang

IPC分类号： H03M7/00

CPC分类号： H03M7/40 ,  H04N19/13 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61

摘要： A method for entropy coding data using parallel entropy coders to encode an input sequence as a plurality of encoded subsequences, which are then combined to form an output bitstream. The input sequence is separated into subsequences on the basis of a context model. A method for entropy decoding a bitstream of encoded data by extracting a plurality of encoded subsequences from the bitstream and entropy decoding the encoded subsequences in parallel to generate a plurality of decoded subsequences, which are then interleaved based on a context model to produce a reconstructed sequence.

摘要翻译： 一种用于使用并行熵编码器熵编码数据以将输入序列编码为多个编码子序列的方法，其然后被组合以形成输出比特流。 基于上下文模型将输入序列分成子序列。 一种用于通过从比特流中提取多个编码子序列来熵解码编码数据的比特流的方法，并行地对编码的子序列进行熵解码以产生多个解码子序列，然后基于上下文模型进行交织以产生重构序列 。

公开(公告)号：US20120328204A1

公开(公告)日：2012-12-27

申请号：US13166423

申请日：2011-06-22

申请人： Dake He ,  Xiang Yu ,  Jing Wang

发明人： Dake He ,  Xiang Yu ,  Jing Wang

IPC分类号： G06K9/36

CPC分类号： H04N19/126 ,  H04N19/105 ,  H04N19/176 ,  H04N19/30 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91

摘要： Methods, systems, and computer programs for encoding and decoding image are described. In some aspects, an input data block and a prediction data block are accessed. A projection factor is generated based on a projection of the input data block onto the prediction data block. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. A residual data block is generated based on a difference between the input data block and the scaled prediction data block. In some aspects, a prediction data block, a residual data block, and a projection factor associated with the residual data block are accessed. A scaled prediction data block is generated by multiplying the projection factor by the prediction data block. An output data block is generated by summing the residual data block and the scaled prediction data block.

摘要翻译： 描述用于编码和解码图像的方法，系统和计算机程序。 在一些方面，访问输入数据块和预测数据块。 基于将输入数据块投影到预测数据块上而生成投影因子。 通过将投影因子乘以预测数据块来生成缩放预测数据块。 基于输入数据块和缩放预测数据块之间的差异生成残留数据块。 在一些方面，访问与残留数据块相关联的预测数据块，残差数据块和投影因子。 通过将投影因子乘以预测数据块来生成缩放预测数据块。 通过对残差数据块和缩放预测数据块求和来生成输出数据块。

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。

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。

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。

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。

公开(公告)号：US20110267208A1

公开(公告)日：2011-11-03

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 ,  H03M7/00

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。

公开(公告)号：US20110210873A1

公开(公告)日：2011-09-01

申请号：US12713542

申请日：2010-02-26

申请人： Gergely Ferenc KORODI ,  Dake He

发明人： Gergely Ferenc KORODI ,  Dake He

IPC分类号： H03M7/28

CPC分类号： H03M7/40

摘要： A method for encoding an input sequence of symbols as a plurality of codewords including primary codewords and secondary codewords, and a method of decoding the plurality of codewords. The codewards are output as a bitstream including an associated codeword type indicator, which specifies whether its associated plurality of consecutive codewords includes at least one secondary codeword and, if so, the location of the first of the at least one secondary codewords. The decoder selects between a primary codeword decoding tree and a secondary codeword decoding tree, and decodes one of the plurality of codewords using the selected decoding tree.

摘要翻译： 一种用于将输入符号序列编码为包括主码字和次码字的多个码字的方法，以及对多个码字进行解码的方法。 码字被输出为包括相关联的码字类型指示符的比特流，其指定其相关联的多个连续码字是否包括至少一个次码字，如果是，则指示该至少一个次码字中的第一码字的位置。 解码器在主码字解码树和次码字解码树之间进行选择，并且使用所选择的解码树来解码多个码字中的一个。