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    • 1. 发明申请
    • Device and method for robust decoding of arithmetic codes
    • 用于算术代码的鲁棒解码的装置和方法
    • US20060106901A1
    • 2006-05-18
    • US10521962
    • 2003-07-16
    • Thomas GuionnetChristine Guillemot
    • Thomas GuionnetChristine Guillemot
    • G06F15/00
    • H03M13/6312H03M7/30H03M7/40H03M13/39H04N19/00H04N19/70
    • The invention concerns a decoder (2) comprising a first input for receiving a coded flow of second binary elements (Yd). It comprises a second input for receiving channel properties (1c) designed to define probabilities of receiving second binary elements, upon transmitting first binary elements, a first module (12) defining a source model (8) adapted to define the probabilities for x-ray symbols associated with transitions between source states in a source state diagram, a so-called product model (7), adapted to define a correspondence between the x-ary symbols and the first binary elements produced in a product state diagram, a product state being a function of a source state, a processing module (6) adapted to calculate probabilities of decoding x-ary symbols, knowing bits of the coded flow of second binary elements from the channel properties (1c) of the source model (8) and of the product model (7), and adapted to reconstitute the most probable flow of x-ary symbols from said computed probabilities.
    • 本发明涉及一种包括用于接收第二二进制元素(Yd)的编码流的第一输入的解码器(2)。 它包括用于接收信道属性(1c)的第二输入,用于在发送第一二进制元素时定义接收第二二进制元素的概率;第一模块(12),定义适合于定义x- 与源状态图中的源状态之间的转换相关联的射线符号,所谓的产品模型(7),其适于定义x-元符号和在产品状态图中产生的第一二进制元素之间的对应关系,产品状态 作为源状态的函数,适于计算解码x元符号的概率的处理模块(6),从源模型(8)的信道属性(1c)知道第二二进制元素的编码流的比特, 和产品模型(7),并且适于从所述计算的概率重构最可能的x元符号流。
    • 2. 发明授权
    • Device and method for robust decoding of arithmetic codes
    • 用于算术代码的鲁棒解码的装置和方法
    • US07215265B2
    • 2007-05-08
    • US10521962
    • 2003-07-16
    • Thomas GuionnetChristine Guillemot
    • Thomas GuionnetChristine Guillemot
    • H03M7/00
    • H03M13/6312H03M7/30H03M7/40H03M13/39H04N19/00H04N19/70
    • The invention concerns a decoder (2) comprising a first input for receiving a coded flow of second binary elements (Yd). It comprises a second input for receiving channel properties (Ic) designed to define probabilities of receiving second binary elements, upon transmitting first binary elements, a first module (12) defining a source model (8) adapted to define the probabilities for x-ray symbols associated with transitions between source states in a source state diagram, a so-called product model (7), adapted to define a correspondence between the x-ary symbols and the first binary elements produced in a product state diagram, a product state being a function of a source state, a processing module (6) adapted to calculate probabilities of decoding x-ary symbols, knowing bits of the coded flow of second binary elements from the channel properties (Ic) of the source model (8) and of the product model (7), and adapted to reconstitute the most probable flow of x-ary symbols from said computed probabilities.
    • 本发明涉及一种包括用于接收第二二进制元素(Yd)的编码流的第一输入的解码器(2)。 它包括用于接收信道属性(Ic)的第二输入,用于定义在发送第一二进制元素时接收第二二进制元素的概率的第一模块(12),所述第一模块定义适合于定义x射线概率的源模型(8) 与源状态图中的源状态之间的转换相关联的符号,即所谓的产品模型(7),其适于定义在x产品符号和产品状态图中产生的第一二进制元件之间的对应关系,产品状态为 源状态的功能,适于计算解码x元符号的概率的处理模块(6),从源模型(8)的信道属性(Ic)知道第二二进制元素的编码流的比特,以及 产品模型(7),并且适于从所述计算的概率重构最可能的x元符号流。
    • 5. 发明申请
    • Method and device for detecting transitions in a video sequence, method and device for coding, computer program products and corresponding storage means
    • 用于检测视频序列中的转换的方法和装置,用于编码的方法和装置,计算机程序产品和相应的存储装置
    • US20070085931A1
    • 2007-04-19
    • US11542632
    • 2006-10-03
    • Thomas GuionnetTanguy PersonJean Kypreos
    • Thomas GuionnetTanguy PersonJean Kypreos
    • H04N5/14
    • H04N5/147H04N19/573H04N19/59H04N19/87
    • Method and apparatus for detecting transitions in a video sequence, which include detecting an abrupt transition including, for each image It−2k included in said video sequence and with a processing time rank t=2k: calculating a first distance D(It−k), between an image It−k and a reference image for said image It−k, which precedes said image It−k in the video sequence; calculating a second distance D(It−2k), between an image It−2k and a reference image for said image It−2k, which precedes said image It−2k in the video sequence; calculating a third distance D(It−3k), between an image It−3k and a reference image for said image It−3k, which precedes said image It−3k in the video sequence; calculating a criterion C′ indicating whether said second distance D(It−2k) is significantly greater than the largest of the first and third distances, D(It−k) and D(It−3k); deciding, according to said criterion C′, on the belonging of the image It−2k to an abrupt transition.
    • 用于检测视频序列中的转换的方法和装置,其包括检测包括在所述视频序列中包括的每个图像I T-2k的突变,并且具有处理时间等级t = 2k:计算 在图像I T s之间的第一距离D(I t T k)和与所述图像I之前的所述图像I T k 的参考图像 视频序列中的 在图像I T-2k与图像I T-2k之间的第二距离D(I t-2k)之间计算第二距离D >,其在视频序列中的所述图像I 2k 之前; 在图像I T-3k与图像I T-3k之间的第三距离D(I t-3k)之间计算第二距离D >,其在视频序列中的所述图像I 3k 之前; 计算指示所述第二距离D(I t-2k)是否明显大于第一和第三距离D(I T t)的最大值的标准C'和 D(I t-3k); 根据所述标准C',将图像I T-2k的属性判定为突变。
    • 6. 发明授权
    • Method and device for detecting transitions in a video sequence, method and device for coding, computer program products and corresponding storage means
    • 用于检测视频序列中的转换的方法和装置,用于编码的方法和装置,计算机程序产品和相应的存储装置
    • US07990477B2
    • 2011-08-02
    • US11542632
    • 2006-10-03
    • Thomas GuionnetTanguy PersonJean Kypreos
    • Thomas GuionnetTanguy PersonJean Kypreos
    • H04N5/14
    • H04N5/147H04N19/573H04N19/59H04N19/87
    • Method and apparatus for detecting transitions in a video sequence, which include detecting an abrupt transition including, for each image It−2k included in said video sequence and with a processing time rank t−2k: calculating a first distance D(It−k), between an image It−k and a reference image for said image It−k, which precedes said image It−k in the video sequence; calculating a second distance D(It−2k), between an image It−2k and a reference image for said image It−2k, which precedes said image It−2k in the video sequence; calculating a third distance D(It−3k), between an image It−3k and a reference image for said image It−3k, which precedes said image It−3k in the video sequence; calculating a criterion C′ indicating whether said second distance D(It−2k) is significantly greater than the largest of the first and third distances, D(It−k) and D(It−3k); deciding, according to said criterion C′, on the belonging of the image It−2k to an abrupt transition.
    • 用于检测视频序列中的转换的方法和装置,其包括检测对于包括在所述视频序列中的每个图像It-2k以及处理时间等级t-2k的突发转换:计算第一距离D(It-k) 在图像It-k和所述图像It-k的参考图像之间,其在视频序列中的所述图像It-k之前; 在图像It-2k和图像序列中的图像It-2k之前的图像It-2k的参考图像之间计算第二距离D(It-2k) 在视频序列中在图像It-3k之前的图像It-3k和图像It-3k的参考图像之间计算第三距离D(It-3k) 计算表示所述第二距离D(It-2k)是否大于第一和第三距离D(It-k)和D(It-3k)中的最大距离的标准C'; 根据所述标准C'决定对图像It-2k的属性进行突然转换。