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    • 3. 发明授权
    • Method and device for encoding a bit sequence
    • 用于编码位序列的方法和设备
    • US08009069B2
    • 2011-08-30
    • US12657246
    • 2010-01-15
    • Qu Qing ChenZhi Bo ChenKang Ying CaiJun Teng
    • Qu Qing ChenZhi Bo ChenKang Ying CaiJun Teng
    • H03M7/40
    • H03M7/40
    • The invention is related to a method and a device for encoding of a bit sequence. Said method comprises generating, for each run of Ones comprised in the bit sequence, a unary representation of length of the respective run of Ones, generating a first sequence by concatenating the generated unary representations of lengths of runs of Ones, generating, for each run of Zeroes comprised in the bit sequence, a unary representation of the length of the respective run of Zeroes, generating a second sequence by concatenating the generated unary representations of lengths of runs of Zeroes, and bit plane encoding the generated first and second sequence of unary representations. In most cases, overall entropy of bit planes of unary representations of run lengths is smaller than entropy of the bit sequence. Thus, more compact encoding can be achieved.
    • 本发明涉及一种用于编码比特序列的方法和装置。 所述方法包括为包含在比特序列中的每个游程生成Ones的相应运行的长度的一元表示,通过连接Ones的运行长度的所生成的一元表示来生成第一序列,为每个运行生成 包括在比特序列中的零的一元表示,相应的零运行的长度的一元表示,通过连接产生的零的运行长度的所生成的一元表示以及生成的第一和第二序列的位平面编码来生成第二序列 表示 在大多数情况下,游程长度的一元表示的位平面的总熵小于比特序列的熵。 因此,可以实现更紧凑的编码。
    • 5. 发明申请
    • VIDEO CODING WITH CODING OF THE LOCATIONS OF SIGNIFICANT COEFFICIENTS IN A BLOCK OF COEFFICIENTS
    • 编码系统中重要系数位置的视频编码
    • US20110134995A1
    • 2011-06-09
    • US12737724
    • 2009-08-07
    • Ji Cheng AnQu Qing ChenZhi Bo ChenJun Teng
    • Ji Cheng AnQu Qing ChenZhi Bo ChenJun Teng
    • H04N7/12
    • H04N19/176H04N19/103H04N19/149H04N19/15H04N19/18H04N19/194H04N19/91H04N19/93
    • In known image compression, following quantisation, a very sparse distribution of significant (i.e. non-zero) amplitude coefficients of the transformed image signal may be obtained while most quantised coefficients are zeros. A costly task for a transform-based image compression in terms of resulting overall data rate is to record the locations of such significant coefficients within the coding blocks. In quartation processing, a ‘significant square’ (containing at least one non-zero amplitude coefficient in the coefficient block) is recursively divided into four smaller squares until single significant coefficients are reached, and the significance statuses of all generated squares are encoded. However, for some distribution patterns encoding the x-y-coordinates of the significant coefficients as binary numbers will lead to less coding cost. According to the invention, at least four different pattern determination or encoding modes are checked, and the encoding side selects the least costly one of these modes and transfers the corresponding mode information to the decoding side for corresponding decoding.
    • 在已知的图像压缩中,在量化之后,可以获得变换图像信号的显着(即非零)振幅系数的非常稀疏的分布,而大多数量化的系数是零。 在所得到的总体数据速率方面,用于基于变换的图像压缩的昂贵任务是记录这些重要系数在编码块内的位置。 在四次分组处理中,将“显着平方”(包含系数块中的至少一个非零幅度系数)递归地划分为四个较小的正方形,直到达到单个有效系数,并且编码所有生成的正方形的显着状态。 然而,对于将有效系数的x-y坐标编码为二进制数的一些分布模式将导致较少的编码成本。 根据本发明,检查至少四种不同的图案确定或编码模式,并且编码方选择这些模式中最便宜的一种模式,并将相应的模式信息传送到解码端用于相应的解码。
    • 6. 发明申请
    • Method and device for encoding a bit sequence
    • 用于编码位序列的方法和设备
    • US20100194610A1
    • 2010-08-05
    • US12657246
    • 2010-01-15
    • Qu Qing ChenZhi Bo ChenKang Ying CaiJun Teng
    • Qu Qing ChenZhi Bo ChenKang Ying CaiJun Teng
    • H03M7/00
    • H03M7/40
    • The invention is related to a method and a device for encoding of a bit sequence.Said method comprises generating, for each run of Ones comprised in the bit sequence, a unary representation of length of the respective run of Ones, generating a first sequence by concatenating the generated unary representations of lengths of runs of Ones, generating, for each run of Zeroes comprised in the bit sequence, a unary representation of the length of the respective run of Zeroes, generating a second sequence by concatenating the generated unary representations of lengths of runs of Zeroes, and bit plane encoding the generated first and second sequence of unary representations.In most cases, overall entropy of bit planes of unary representations of run lengths is smaller than entropy of the bit sequence. Thus, more compact encoding can be achieved.
    • 本发明涉及一种用于编码比特序列的方法和装置。 所述方法包括为包含在比特序列中的每个游程生成Ones的相应运行的长度的一元表示,通过连接Ones的运行长度的所生成的一元表示来生成第一序列,为每个运行生成 包括在比特序列中的零的一元表示,相应的零运行的长度的一元表示,通过连接产生的零的运行长度的所生成的一元表示以及生成的第一和第二序列的位平面编码生成第二序列 表示 在大多数情况下,游程长度的一元表示的位平面的总熵小于比特序列的熵。 因此,可以实现更紧凑的编码。
    • 7. 发明授权
    • Method and device for encoding an input bit sequence and corresponding decoding method and device
    • 用于编码输入比特序列的方法和装置以及相应的解码方法和装置
    • US08514109B2
    • 2013-08-20
    • US13138715
    • 2010-03-30
    • Qu Qing ChenKang Ying CaiZhi Bo ChenJun Teng
    • Qu Qing ChenKang Ying CaiZhi Bo ChenJun Teng
    • H03M7/30
    • H03M5/14H03M7/30
    • The invention is made in the technical field of encoding and decoding of bit sequences. The invention proposes a device for compression-encoding an input bit sequence in which Zeroes and Ones occur equally frequent, comprising an XOR gate adapted for receiving pairs of immediately succeeding bits of the input bit sequence as inputs and for outputting further bits of another bit sequence, means for adding a bit to said other bit sequence wherein the added bit is a primary bit which is equal to a primary bit of the input bit sequence or a last bit which is equal to a last bit of the input bit sequence, and means for encoding the other sequence. The XOR gate transforms the input bit sequence into the other bit sequence which comprises more uneven frequencies of occurrence of Zeroes and Ones than the input bit sequence.
    • 本发明是在比特序列的编码和解码的技术领域中进行的。 本发明提出了一种对输入比特序列进行压缩编码的装置,其中零和等于频繁出现,包括适合于接收输入比特序列的紧随后排的对的XOR门作为输入,并用于输出另一比特序列的其他比特 ,用于向所述其他比特序列添加比特的装置,其中所述相加比特是等于所述输入比特序列的主比特或等于所述输入比特序列的最后比特的最后比特的主比特;以及装置 用于编码其他序列。 XOR门将输入比特序列转换为另一个比特序列,其中包括比输入比特序列更多的不均匀出现零和零的频率。
    • 9. 发明申请
    • METHOD AND DEVICE FOR ENCODING AN INPUT BIT SEQUENCE AND CORRESPONDING DECODING METHOD AND DEVICE
    • 用于编码输入位序列和对应解码方法和设备的方法和设备
    • US20120013491A1
    • 2012-01-19
    • US13138715
    • 2010-03-30
    • Qu Qing ChenKang Ying CaiZhi Bo ChenJun Teng
    • Qu Qing ChenKang Ying CaiZhi Bo ChenJun Teng
    • H03M7/30H03M7/40
    • H03M5/14H03M7/30
    • The invention is made in the technical field of encoding and decoding of bit sequences. The invention proposes a device for compression-encoding an input bit sequence in which Zeroes and Ones occur equally frequent, comprising an XOR gate adapted for receiving pairs of immediately succeeding bits of the input bit sequence as inputs and for outputting further bits of another bit sequence, means for adding a bit to said other bit sequence wherein the added bit is a primary bit which is equal to a primary bit of the input bit sequence or a last bit which is equal to a last bit of the input bit sequence, and means for encoding the other sequence. The XOR gate transforms the input bit sequence into the other bit sequence which comprises more uneven frequencies of occurrence of Zeroes and Ones than the input bit sequence.
    • 本发明是在比特序列的编码和解码的技术领域中进行的。 本发明提出了一种对输入比特序列进行压缩编码的装置,其中零和等于频繁出现,包括适合于接收输入比特序列的紧随后排的对的XOR门作为输入,并用于输出另一比特序列的其他比特 ,用于向所述其他比特序列添加比特的装置,其中所述相加比特是等于所述输入比特序列的主比特或等于所述输入比特序列的最后比特的最后比特的主比特;以及装置 用于编码其他序列。 XOR门将输入比特序列转换为另一个比特序列,其中包括比输入比特序列更多的不均匀出现零和零的频率。
    • 10. 发明申请
    • Method for encoding a sequence of integers, storage device and signal carrying an encoded integer sequence and method for decoding a sequence of integers
    • 用于编码整数序列的方法,存储装置和携带编码整数序列的信号以及用于解码整数序列的方法
    • US20090267812A1
    • 2009-10-29
    • US12386579
    • 2009-04-21
    • Qu Qing ChenZhi Bo ChenJun Teng
    • Qu Qing ChenZhi Bo ChenJun Teng
    • H03M7/40H03M7/08
    • H03M7/46H04N19/13H04N19/176H04N19/46H04N19/61H04N19/70H04N19/91
    • The invention is related to a method for encoding a sequence of integers, to a storage device and to a signal carrying such encoded sequence and to a method for decoding such encoded sequence.Said method comprises the steps of identifying a contiguous sub-sequence in the sequence of integers wherein said sub-sequence comprises interrelated integers having a same prefix when being variable length encoded and an independent last integer, and forming a code for the contiguous sub-sequence by help of code for an indication of the number of interrelated integers in said contiguous subsequence, a code of a prefix indication and the suffixes of variable length codes of the integers in the contiguous is sub-sequence.Thus, if there are n integers of which each is encoded with the same prefix then, instead of n individual prefixes for the integers, a single prefix for the contiguous subsequence is sufficient.
    • 本发明涉及一种用于将整数序列编码到存储装置和携带这种编码序列的信号的方法以及用于对这种编码序列进行解码的方法。 所述方法包括以下步骤:识别整数序列中的连续子序列,其中当可变长度编码时,所述子序列包括具有相同前缀的相关整数,并且具有独立的最后整数,以及形成连续子序列的码 借助于用于指示所述连续子序列中的相关整数的代码的代码,前缀指示的代码和连续的整数的可变长度代码的后缀是子序列。 因此,如果存在其中每个都以相同前缀编码的n个整数,则代替整数的n个单独的前缀,对于连续子序列的单个前缀就足够了。