公开(公告)号：US20120026020A1

公开(公告)日：2012-02-02

申请号：US13193125

申请日：2011-07-28

申请人： Gergely Ferenc KORODI ,  Dake HE

发明人： Gergely Ferenc KORODI ,  Dake HE

IPC分类号： H03M7/30

CPC分类号： H03M7/4056 ,  H03M7/4006 ,  H03M7/42 ,  H04N19/91 ,  H04N19/96

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 2L-ary encoding trees having codewords associated with leaf nodes. 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 sequences of length-L strings 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。 编码采用具有与叶节点相关联的码字的2L编码树。 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，对与不同估计概率相关联的长度L字符串的解码序列进行交织。

公开(公告)号：US20130235925A1

公开(公告)日：2013-09-12

申请号：US13446393

申请日：2012-04-13

申请人： Nguyen NGUYEN ,  Tianying JI ,  Dake HE

发明人： Nguyen NGUYEN ,  Tianying JI ,  Dake HE

IPC分类号： H04N7/30

CPC分类号： H03M7/4006 ,  H03M7/4018 ,  H03M7/6011 ,  H03M7/6017 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/61

摘要： Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit, using adaptive-threshold-based level coding. Threshold is set based upon level information from one or more previously-reconstructed coefficient groups in the transform unit. Threshold may be maximum number of level flags to decode for the coefficient group. Level information may include number of level flags decoded in previous coefficient groups. Previously-reconstructed coefficient groups may include coefficient group to the right and below the current coefficient group.

摘要翻译： 用于使用基于自适应阈值的电平编码从变换单元中的系数组的编码视频数据的比特流重建系数级的方法和装置。 基于来自变换单元中的一个或多个先前重构的系数组的级别信息设置阈值。 阈值可以是用于系数组解码的最大级别标志数。 电平信息可以包括在先前系数组中解码的电平标志的数量。 先前重建的系数组可以包括当前系数组右侧和下面的系数组。

公开(公告)号：US20120314760A1

公开(公告)日：2012-12-13

申请号：US13491693

申请日：2012-06-08

申请人： Dake HE

发明人： Dake HE

IPC分类号： H04N7/26 ,  H03M7/00

CPC分类号： H03M7/3079 ,  H03M7/4018 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/91

摘要： A method for decoding compressed data that has been encoded using a context model, each context having a context state corresponding to a probability estimate. Each bin of the data has been encoded using the probability estimate corresponding to the context state for the context associated with that bin. At the decoder, for decoding a series of bins associated with a given context, an initial probability estimate is determined using an initial context state for the given context and the series of bins are decoded and reconstructed using that initial probability estimate. After the series is decoded, the context state is updated based on the reconstructed bins for the series to produce an updated context state for that context to be used in decoding a subsequence portion of the bitstream.

摘要翻译： 一种用于解码已经使用上下文模型编码的压缩数据的方法，每个上下文具有与概率估计相对应的上下文状态。 已经使用对应于与该仓相关联的上下文的上下文状态的概率估计来对每个数据块进行编码。 在解码器中，为了解码与给定上下文相关联的一系列箱，使用给定上下文的初始上下文状态来确定初始概率估计，并且使用该初始概率估计对一系列仓进行解码和重建。 在系列被解码之后，基于用于该系列的重构的存储体来更新上下文状态，以产生用于解码比特流的子序列部分的该上下文的更新的上下文状态。

公开(公告)号：US20120194363A1

公开(公告)日：2012-08-02

申请号：US13438867

申请日：2012-04-04

申请人： Gergely Ferenc KORODI ,  Dake HE ,  En-Hui YANG ,  Gaelle Christine MARTIN-COCHER

发明人： Gergely Ferenc KORODI ,  Dake HE ,  En-Hui YANG ,  Gaelle Christine MARTIN-COCHER

IPC分类号： H03M7/30 ,  H03M7/00

CPC分类号： H03M7/40

摘要： Devices and methods for entropy decoding a bitstream of encoded data by extracting a plurality of encoded subsequences from a payload field of the bitstream for parallel decoding on a set of parallel entropy decoders. The method includes dividing the payload of concatenated encoded subsequences into segments using a distribution function and distributing the segments amongst the set of parallel entropy decoders to balance the computational load among the parallel entropy decoders. The received bitstream includes auxiliary information inserted by the encoder to enable the decoder to entropy decode segments that begin with a portion of an encoded subsequence.

摘要翻译： 通过从比特流的有效载荷字段提取多个编码子序列来对一组并行熵解码器进行并行解码来熵解码编码数据的比特流的装置和方法。 该方法包括使用分布函数将连接的编码子序列的有效载荷划分成段，并且在并行熵解码器集合之间分配段以平衡并行熵解码器之间的计算负载。 所接收的比特流包括由编码器插入的辅助信息，以使解码器可以熵解码以编码子序列的一部分开头的片段。

公开(公告)号：US20110249748A1

公开(公告)日：2011-10-13

申请号：US13085580

申请日：2011-04-13

申请人： Jinwen ZAN ,  Dake HE ,  En-hui YANG

发明人： Jinwen ZAN ,  Dake HE ,  En-hui YANG

IPC分类号： H04N7/50 ,  H04N7/26 ,  H04N7/32

CPC分类号： H04N19/105 ,  H04N19/117 ,  H04N19/154 ,  H04N19/17 ,  H04N19/82 ,  H04N19/86

摘要： Encoders and methods of encoding that incorporate deblocking into the encoding process. An encoder performs a two-cycle encoding process. First, an original block is processed and then reconstructed and deblocked. The reconstruction and the deblocked reconstruction are compared to the original and an intermediate block is created that contains the portions of the reconstruction or the deblocked reconstruction that are more similar to the original. In the second cycle, the intermediate block serves to generate a modified original block, which is then used in a prediction process to create a new prediction block. The new prediction block as compared to the original gives new residuals. The new prediction and new residuals are entropy coded to generate the encoded video data. The new prediction block and new residuals incorporate the deblocking elements selectively identified during the first cycle, thereby eliminating the need for deblocking at the decoder. The prediction operation may be motion prediction or spatial prediction.

摘要翻译： 编码器和编码方法，将解封锁结合到编码过程中。 编码器执行两周期编码处理。 首先，处理原始块，然后重建和解块。 将重建和解块重构与原始的重建进行比较，创建一个包含与原来更接近的重构或解块重构的部分的中间块。 在第二周期中，中间块用于产生经修改的原始块，然后将其用于预测过程以创建新的预测块。 与原来相比，新的预测块产生了新的残差。 新的预测和新的残差被熵编码以产生编码的视频数据。 新的预测块和新的残差包括在第一周期期间选择性地识别的去块元件，从而消除了在解码器处的解块的需要。 预测操作可以是运动预测或空间预测。

公开(公告)号：US20110210874A1

公开(公告)日：2011-09-01

申请号：US12713576

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： H03M7/40 ,  H03M7/00

CPC分类号： H03M7/40

摘要： A method for encoding an input sequence of symbols. The method includes, sequentially, for each symbol in the input sequence, determining an estimated probability for that symbol based on a context model, identifying a codeword associated with a sequence of symbols resulting from appending that symbol to a previous sequence of symbols associated with that estimated probability, using an encoding tree associated with that estimated probability, and storing the codeword in a buffer element of a first-in-first-out buffer, wherein the buffer element is associated with the estimated probability. Stored codewords are output from the buffer in a first-in-first-out order.

摘要翻译： 一种编码输入符号序列的方法。 该方法包括依次为输入序列中的每个符号确定基于上下文模型的该符号的估计概率，识别与由该符号序列相关联的符号序列相关联的码元与之前相关联的符号相关联的码元相关联的码字 估计概率，使用与该估计概率相关联的编码树，以及将码字存储在先进先出缓冲器的缓冲器元件中，其中缓冲器元件与估计的概率相关联。 以先入先出的顺序从缓冲器输出存储的代码字。