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1. 发明授权

US08519871B2 Methods and devices for parallel encoding and decoding using a bitstream structured for reduced delay 有权
公开(公告)号：US08519871B2
公开(公告)日：2013-08-27
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.

2. 发明申请

US20110200104A1 PARALLEL ENTROPY CODING AND DECODING METHODS AND DEVICES 有权
标题翻译：并行编码和解码方法和设备
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。

3. 发明授权

US08487791B2 Parallel entropy coding and decoding methods and devices 有权
标题翻译：并行熵编码和解码方法和设备
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。

4. 发明授权

US08730071B2 Methods and devices for load balancing in parallel entropy coding and decoding 有权
标题翻译：并行熵编码和解码中负载均衡的方法和装置
公开(公告)号：US08730071B2
公开(公告)日：2014-05-20
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： H03M7/00 , 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。

5. 发明授权

US08174414B2 Methods and devices for load balancing in parallel entropy coding and decoding 有权
标题翻译：并行熵编码和解码中负载均衡的方法和装置
公开(公告)号：US08174414B2
公开(公告)日：2012-05-08
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： H03M7/00
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。

6. 发明授权

US08891630B2 Significance map encoding and decoding using partition set based context assignment 有权
标题翻译：使用基于分区集的上下文分配的重要地图编码和解码
公开(公告)号：US08891630B2
公开(公告)日：2014-11-18
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： H04N11/02 , H04N19/625 , H04N19/18 , H04N19/13
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.
摘要翻译：描述用于视频数据的编码和解码的方法，其中使用映射的非空间均匀划分来对有意义的映射进行编码和解码，其中每个部分内的位位置与给定的上下文相关联。描述了用于从预定分区集合中选择并将选择传送到解码器的示例分区集和处理。

7. 发明授权

US08400336B2 Methods and devices for reordered parallel entropy coding and decoding 有权
标题翻译：用于重排序并行熵编码和解码的方法和装置
公开(公告)号：US08400336B2
公开(公告)日：2013-03-19
申请号：US13089599
申请日：2011-04-19
申请人： Dake He , Gaëlle Christine Martin-Cocher , Gergely Ferenc Korodi
发明人： Dake He , Gaëlle Christine Martin-Cocher , Gergely Ferenc Korodi
IPC分类号： H03M7/30
CPC分类号： H03M7/40
摘要： A method for parallel context modeling through reordering the bits of an input sequence to form groups of bits in accordance with a context model-specific reordering schedule. The reordering schedule is developed such that the groups of bits are formed to satisfy two conditions: first, that the context for each of the bits in a group of bits is different from the context of each of the other bits in that group, and the context of each of the bits in that group is determined independently from each of the other bits in that group. The parallel context modeling may be used in encoding or decoding operations.
摘要翻译：一种用于通过根据上下文模型特定的重排序表重新排序输入序列的比特以形成比特组的并行上下文建模的方法。重新排序调度被开发成使得位组被形成为满足两个条件：首先，位组中的每个比特的上下文不同于该组中的每个其他比特的上下文，并且该组中每个位的上下文独立于该组中的每个其他位确定。并行上下文建模可用于编码或解码操作。

8. 发明授权

US08077064B2 Method and device for buffer-based interleaved encoding of an input sequence 有权
标题翻译：用于输入序列的基于缓冲器的交错编码的方法和设备
公开(公告)号：US08077064B2
公开(公告)日：2011-12-13
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： H03M7/00
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。

9. 发明申请

US20110285557A1 METHODS AND DEVICES FOR REDUCING SOURCES IN BINARY ENTROPY CODING AND DECODING 有权
标题翻译：用于减少二进制熵编码和解码中的源的方法和装置
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。

10. 发明授权

US08638247B2 Method and device for buffer-based interleaved encoding of an input sequence 有权
标题翻译：用于输入序列的基于缓冲器的交错编码的方法和设备
公开(公告)号：US08638247B2
公开(公告)日：2014-01-28
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。

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