公开(公告)号：US07990477B2

公开(公告)日：2011-08-02

申请号：US11542632

申请日：2006-10-03

申请人： Thomas Guionnet ,  Tanguy Person ,  Jean Kypreos

发明人： Thomas Guionnet ,  Tanguy Person ,  Jean Kypreos

IPC分类号： H04N5/14

CPC分类号： H04N5/147 ,  H04N19/573 ,  H04N19/59 ,  H04N19/87

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07215265B2

公开(公告)日：2007-05-08

申请号：US10521962

申请日：2003-07-16

申请人： Thomas Guionnet ,  Christine Guillemot

发明人： Thomas Guionnet ,  Christine Guillemot

IPC分类号： H03M7/00

CPC分类号： H03M13/6312 ,  H03M7/30 ,  H03M7/40 ,  H03M13/39 ,  H04N19/00 ,  H04N19/70

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08111749B2

公开(公告)日：2012-02-07

申请号：US12468374

申请日：2009-05-19

申请人： Mathieu Muller ,  Thomas Guionnet ,  Sylvain Buriau ,  Mickaël Le Guerroue

发明人： Mathieu Muller ,  Thomas Guionnet ,  Sylvain Buriau ,  Mickaël Le Guerroue

IPC分类号： H04N11/04

CPC分类号： H04N19/436 ,  H04N19/61

摘要： A method is proposed for encoding/decoding an image having rectangular blocks of pixels. The image has a height of H blocks and a width of W blocks and is divided into vertical (or horizontal) bands of blocks having the height of H (or width of W) blocks. The method includes: obtaining N processors and M coprocessors, the M coprocessors distributed over S levels, N>1, S>0 and M>S; assigning the N processors Pi to N contiguous bands BPi having sizes of Ki blocks, 0≦i≦N−1 and ∑ i = 0 N - 1 ⁢ ⁢ K i = W ; for every level of coprocessors s, 0≦s≦S−1, assigning Ms coprocessors CPs,j to Ms contiguous bands having sizes of Qs,j blocks, with: ∑ j = 0 M s - 1 ⁢ ⁢ Q s , j = W ; managing sending of first, second and third start messages, and first and second verification messages to the processors and coprocessors, according to a predetermined set of rules.

摘要翻译： 提出了一种用于对具有矩形像素块的图像进行编码/解码的方法。 图像具有H个块的高度和W个块的宽度，并且被划分为具有高度H（或W的宽度）块的块的垂直（或水平）带。 该方法包括：获得N个处理器和M个协处理器，M个协处理器分布在S级，N> 1，S> 0和M> S; 将N个处理器Pi分配给具有大小为Ki块的N个连续频带BPi，0＆nlE; i＆nlE; N-1和Σi = 0 N-1⁢K i = W; 对于每个级别的协处理器s，0＆nlE; s＆nlE; S-1，将Ms协处理器CP，j分配给具有Qs，j块大小的连续带，其中：Σj = 0 M s-1， W; 根据预定的一组规则来管理第一，第二和第三起始消息以及第一和第二验证消息到处理器和协处理器的发送。

公开(公告)号：US20070092147A1

公开(公告)日：2007-04-26

申请号：US11542610

申请日：2006-10-03

申请人： Thomas Guionnet ,  Frederic Guillimin

发明人： Thomas Guionnet ,  Frederic Guillimin

IPC分类号： G06K9/36

CPC分类号： H04N19/59 ,  H04N19/573

摘要： A multiple-reference motion-compensated predictive coding method is provided, which includes a multiple-reference motion estimation step, of the type making it possible to estimate the motion for each current frame included in a video sequence, from at least one initial list of reference frames for said current frame, each initial list LIi including Ni reference frames selected in a predetermined manner, with i>1 and Ni22 2. The multiple-reference motion estimation step includes the following steps for each current frame: for each initial list LIi, obtaining of a corresponding short list LRi by selecting ki reference frame(s) from among the Ni reference frames included in said initial list LIi, with 1

摘要翻译： 提供了一种多参考运动补偿预测编码方法，其包括多参考运动估计步骤，该步骤使得可以从包括在视频序列中的每个当前帧的运动估计出至少一个初始列表 用于所述当前帧的参考帧，每个初始列表L1包括以预定方式选择的N i个参考帧，其中i> 1和N i 22 2.多参考运动估计步骤包括针对每个当前帧的以下步骤：对于每个初始列表LI ，通过以下步骤获得相应的短列表LR 从包含在所述初始列表LI 中的N SUB参考帧中选择一个或多个参考帧，其中1 我 以及基于每个短列表LR i i i的k个参考图像估计运动。 基于为每个短列表LR SUB选择的参考帧执行闪存帧检测步骤。

公开(公告)号：US08254442B2

公开(公告)日：2012-08-28

申请号：US11875099

申请日：2007-10-19

申请人： Tanguy Person ,  Thomas Guionnet ,  Michael Ropert

发明人： Tanguy Person ,  Thomas Guionnet ,  Michael Ropert

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  G01R31/08 ,  G06F11/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/28

CPC分类号： H03M7/30 ,  H04N19/109 ,  H04N19/152 ,  H04N19/156 ,  H04N19/176 ,  H04N19/184 ,  H04N19/423 ,  H04N19/61

摘要： A real time encoder with bit rate constraint, of the type including: a capture buffer memory storing frames waiting to be processed; an encoding module receiving frames issued from the capture buffer memory and delivering compressed frames; an intermediate buffer memory, storing the compressed frames issued from the encoding module; and an emission buffer memory, storing data packets, resulting from the division of the compressed frames issued from the intermediate buffer memory, and emitting, with a controlled bit rate, the data packets on a communication channel. The encoder includes a control module, which dynamically adjusts the maximum size of the capture buffer memory, permitting the maximum size of the capture buffer memory to be temporarily increased as long as the emission buffer memory is not empty.

摘要翻译： 具有比特率约束的实时编码器，其类型包括：存储等待处理的帧的捕获缓冲存储器; 接收从捕捉缓冲存储器发出的帧并传递压缩帧的编码模块; 存储从编码模块发出的压缩帧的中间缓冲存储器; 以及发射缓冲存储器，存储由中间缓冲存储器发出的压缩帧分割而产生的数据分组，并以受控的比特率发送通信信道上的数据分组。 编码器包括控制模块，其动态地调整捕获缓冲存储器的最大尺寸，只要发射缓冲存储器不为空，允许捕获缓冲存储器的最大尺寸暂时增加。

公开(公告)号：US20100067582A1

公开(公告)日：2010-03-18

申请号：US12468374

申请日：2009-05-19

申请人： Mathieu Muller ,  Thomas Guionnet ,  Sylvain Buriau ,  Mickael Le Guerroue

发明人： Mathieu Muller ,  Thomas Guionnet ,  Sylvain Buriau ,  Mickael Le Guerroue

IPC分类号： H04N11/04

CPC分类号： H04N19/436 ,  H04N19/61

摘要： A method is proposed for encoding/decoding an image having rectangular blocks of pixels. The image has a height of H blocks and a width of W blocks and is divided into vertical (or horizontal) bands of blocks having the height of H (or width of W) blocks. The method includes: obtaining N processors and M coprocessors, the M coprocessors distributed over S levels, N>1, S>0 and M>S; assigning the N processors Pi to N contiguous bands BPi having sizes of Ki blocks, 0≦i≦N−1 and ∑ i = 0 N - 1   K i = W ; for every level of coprocessors s, 0≦s≦S−1, assigning Ms coprocessors CPs,j to Ms contiguous bands having sizes of Qs,j blocks, with: ∑ j = 0 M s - 1   Q s , j = W ; managing sending of first, second and third start messages, and first and second verification messages to the processors and coprocessors, according to a predetermined set of rules.

摘要翻译： 提出了一种用于对具有矩形像素块的图像进行编码/解码的方法。 图像具有H个块的高度和W个块的宽度，并且被划分为具有高度H（或W的宽度）块的块的垂直（或水平）带。 该方法包括：获得N个处理器和M个协处理器，M个协处理器分布在S级，N> 1，S> 0和M> S; 将N个处理器Pi分配给具有大小为Ki块的N个连续频带BPi，0＆nlE; i＆nlE; N-1和Σi = 0 N -1表示K i = W; 对于每个级别的协处理器s，0＆nlE; s＆nlE; S-1，将Ms协处理器CP，j分配给具有Qs，j块大小的连续频带，其中：Σj = 0 M s - 1， W; 根据预定的一组规则来管理第一，第二和第三起始消息以及第一和第二验证消息到处理器和协处理器的发送。

公开(公告)号：US20060106901A1

公开(公告)日：2006-05-18

申请号：US10521962

申请日：2003-07-16

申请人： Thomas Guionnet ,  Christine Guillemot

发明人： Thomas Guionnet ,  Christine Guillemot

IPC分类号： G06F15/00

CPC分类号： H03M13/6312 ,  H03M7/30 ,  H03M7/40 ,  H03M13/39 ,  H04N19/00 ,  H04N19/70

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20080101461A1

公开(公告)日：2008-05-01

申请号：US11875099

申请日：2007-10-19

申请人： Tanguy Person ,  Thomas Guionnet ,  Michael Ropert

发明人： Tanguy Person ,  Thomas Guionnet ,  Michael Ropert

IPC分类号： H04N7/26

CPC分类号： H03M7/30 ,  H04N19/109 ,  H04N19/152 ,  H04N19/156 ,  H04N19/176 ,  H04N19/184 ,  H04N19/423 ,  H04N19/61

摘要： A real time encoder with bit rate constraint, of the type including: a capture buffer memory storing frames waiting to be processed; an encoding module receiving frames issued from the capture buffer memory and delivering compressed frames; an intermediate buffer memory, storing the compressed frames issued from the encoding module; and an emission buffer memory, storing data packets, resulting from the division of the compressed frames issued from the intermediate buffer memory, and emitting, with a controlled bit rate, the data packets on a communication channel. The encoder includes a control module, which dynamically adjusts the maximum size of the capture buffer memory, permitting the maximum size of the capture buffer memory to be temporarily increased as long as the emission buffer memory is not empty.

摘要翻译： 具有比特率约束的实时编码器，其类型包括：存储等待处理的帧的捕获缓冲存储器; 接收从捕捉缓冲存储器发出的帧并传递压缩帧的编码模块; 存储从编码模块发出的压缩帧的中间缓冲存储器; 以及发射缓冲存储器，存储由中间缓冲存储器发出的压缩帧分割而产生的数据分组，并以受控的比特率发送通信信道上的数据分组。 编码器包括控制模块，其动态地调整捕获缓冲存储器的最大尺寸，只要发射缓冲存储器不为空，允许捕获缓冲存储器的最大尺寸暂时增加。

公开(公告)号：US20070085931A1

公开(公告)日：2007-04-19

申请号：US11542632

申请日：2006-10-03

申请人： Thomas Guionnet ,  Tanguy Person ,  Jean Kypreos

发明人： Thomas Guionnet ,  Tanguy Person ,  Jean Kypreos

IPC分类号： H04N5/14

CPC分类号： H04N5/147 ,  H04N19/573 ,  H04N19/59 ,  H04N19/87

摘要： 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.

摘要翻译： 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。