公开(公告)号：US20110200104A1

公开(公告)日：2011-08-18

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： H04N7/12 ,  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经解码的子序列，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：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：US20110248872A1

公开(公告)日：2011-10-13

申请号：US12758905

申请日：2010-04-13

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： H03M7/40

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：US20120081242A1

公开(公告)日：2012-04-05

申请号：US13249707

申请日：2011-09-30

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

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

IPC分类号： H03M7/00

CPC分类号： H04N19/00775 ,  H03M7/30 ,  H03M7/40 ,  H03M7/4006 ,  H03M7/46 ,  H03M7/6023 ,  H04N19/60

摘要： Methods and devices for encoding and decoding that involve sorting bins according to their respective estimated probabilities to form subsequences, each subsequence having an associated estimated probability. Subsequences are encoded to form codewords. Ordered sets of phrases of known length are then formed from the codewords. Each first of the phrases in a set contains at least part of one codeword. The first phrase has an associated estimated probability and the probability estimates associated with each of the other phrases in the set are determined based upon the probability estimate associated with the first phrase, which permits the phrases to be decoded in parallel.

摘要翻译： 用于编码和解码的方法和装置涉及根据各自的估计概率来分类分组以形成子序列，每个子序列具有相关联的估计概率。 子序列被编码形成码字。 然后从码字形成已知长度的有序集合。 集合中的每个第一个短语包含一个码字的至少一部分。 第一短语具有相关联的估计概率，并且基于与第一短语相关联的概率估计来确定与集合中的每个其他短语相关联的概率估计，其允许短语被并行解码。

公开(公告)号：US20110285557A1

公开(公告)日：2011-11-24

申请号：US13112597

申请日：2011-05-20

申请人： Gergely Ferenc KORODI ,  Dake He

发明人： Gergely Ferenc KORODI ,  Dake He

IPC分类号： H03M5/00

CPC分类号： H03M7/4006

摘要： Methods and systems are described for combining sources in a data compression system. In a system in which a context model results in the production of multiple sources or symbols, each source being associated with a probability estimate, sources may be combined by defining another, reduced size, set of probabilities. The new set of probabilities may be a subset of the predefined set of probabilities provided by the context model. Minimizing relative entropy may be a basis upon which to define a mapping of predefined probabilities to the new set of probabilities. An input sequence that was modeled using the context model may then be entropy encoded and entropy decoded using the new set of probabilities based on a mapping between the new probabilities and the predefined probabilities.

摘要翻译： 描述了用于在数据压缩系统中组合源的方法和系统。 在上下文模型导致产生多个源或符号的系统中，每个源与概率估计相关联，源可以通过定义另一个缩小的大小的概率集合来组合。 新的概率集合可以是由上下文模型提供的预定义概率集合的子集。 最小化相对熵可以是将预定义概率映射到新的概率集合的基础。 然后使用上下文模型建模的输入序列可以基于新概率和预定义概率之间的映射，使用新的概率集进行熵编码和熵解码。

公开(公告)号：US20120098682A1

公开(公告)日：2012-04-26

申请号：US13316958

申请日：2011-12-12

申请人： Gergely Ferenc KORODI ,  Dake HE

发明人： Gergely Ferenc KORODI ,  Dake HE

IPC分类号： 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。

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：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。

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。

公开(公告)号：US20130101046A1

公开(公告)日：2013-04-25

申请号：US13279397

申请日：2011-10-24

申请人： Gergely Ferenc KORODI ,  Jinwen ZAN ,  Dake HE

发明人： Gergely Ferenc KORODI ,  Jinwen ZAN ,  Dake HE

IPC分类号： H04N7/30

CPC分类号： H04N19/60 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/625 ,  H04N19/91

摘要： Methods of encoding and decoding for video data are describe in which significance maps are encoded and decoded using non-spatially-uniform partitioning of the map into parts, wherein the bit positions within each part are associated with a given context. Example partition sets and processes for selecting from amongst predetermined partition sets and communicating the selection to the decoder are described.