公开(公告)号：EP2491719A1

公开(公告)日：2012-08-29

申请号：EP10785471.3

申请日：2010-10-14

申请人： France Telecom

发明人： AMONOU, Isabelle ,  CAMMAS, Nathalie ,  PATEUX, Stéphane ,  RELIER, Stéphanie

IPC分类号： H04N7/26

CPC分类号： H04N19/436 ,  H04N19/174 ,  H04N19/70

摘要： The invention relates to a method for encapsulating a plurality of data substreams encoded in a bit stream, an encoded data substream being obtained by means of entropy encoding of a symbol subsequence representing an image or a series of images, said method including a step of creating a bit stream that encapsulates said plurality of substreams. According to the invention, said method is special in that it includes the following steps: - grouping data substreams into substream pairs according to an iterative traversal order predetermined from said plurality of substreams; - from a pair, obtaining a symmetrical pair by means of reversing a data order making up the second substream of the pair; and - concatenating the pairs obtained within a sequence. Said method is also special in that - the step of creating the bit stream includes encapsulating said sequence and information related to a number of substreams and related to the sizes of pairs of symmetrical substreams.

公开(公告)号：EP2446629A1

公开(公告)日：2012-05-02

申请号：EP10734283.4

申请日：2010-06-21

申请人： France Telecom

发明人： PATEUX, Stéphane ,  CAMMAS, Nathalie ,  AMONOU, Isabelle

IPC分类号： H04N7/26 ,  H04N7/50

CPC分类号： H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/61

摘要： The invention relates to a method of coding a signal from images, said images being split into sub-blocks of pixels, comprising a step of grouping (101) at least two sub-blocks into at least one block of larger size, when said sub-blocks comply with at least one predetermined grouping criterion. According to the invention, such a method comprises a step of prediction (103) applying at least one mode of motion prediction using at least two distinct motion prediction vectors, for at least one block of larger size, said motion prediction vectors being associated respectively with sub-sets of said block of larger size, comprising at least one of said sub-blocks of said block of larger size, said sub-sets being redefined and distinct.

摘要翻译： 提供了用于从编码图像信号的方法和设备，所述图像被分裂成像素的子块。 该方法包括：分组的至少两个子块成较大尺寸的至少一个块，当子块符合至少一个预定的分组标准。 的预测执行通过应用使用至少两个不同的运动预测矢量的运动预测中的至少一个模式中，对于较大尺寸的至少一个块时，运动预测矢量被与子集较大尺寸，其包括块的分别关联的 较大尺寸的块的子块中的至少一个。 子集是预定义的且不同的。

公开(公告)号：EP2446628A1

公开(公告)日：2012-05-02

申请号：EP10734259.4

申请日：2010-06-17

申请人： France Telecom

发明人： CAMMAS, Nathalie ,  AMONOU, Isabelle ,  PATEUX, Stéphane

IPC分类号： H04N7/26

CPC分类号： H04N19/543 ,  H04N19/109 ,  H04N19/139 ,  H04N19/17 ,  H04N19/176 ,  H04N19/52

摘要： The invention relates to a method for encoding an image sequence, including the following steps, for at least one group of blocks of an image: determining (21), for each block, at least one parameter characteristic of said block; forming at least one cluster including the blocks having at least one similar characteristic parameter; encoding (24) the blocks of said cluster, the similar characteristic parameter(s) associated with said cluster being encoded only once; encoding (23) the blocks that do not belong to any cluster, the characteristic parameter(s) associated with each of said blocks not being encoded. Such a method also includes the steps of generating (25) a data stream and inserting (26), into said stream, at least one piece of information on the partitioning of the group(s), in order to identify the outer block(s) within a group.

摘要翻译： 提供一种用于编码图象序列的方法和装置。 所述方法包括以下步骤，用于至少一种基团的图像的块的：确定性采矿，对于每个块，所述块中的至少一个参数特性; 形成至少一个群集包括具有至少一个类似的特性参数的块; 编码所述簇的块，与所述簇被编码仅一次相关联的类似的特性参数（一个或多个）; 编码块没有不属于任何簇，与每个所述块的不被编码相关联的特性参数（一个或多个）; 产生的数据流; 并插入所述流中，所述组（多个）的划分的至少一个信息，以便在组内识别所述外部块（多个）。

公开(公告)号：EP2392141A1

公开(公告)日：2011-12-07

申请号：EP10707587.1

申请日：2010-01-26

申请人： France Telecom

发明人： AMONOU, Isabelle ,  MOINARD, Matthieu ,  CAMMAS, Nathalie

IPC分类号： H04N7/26 ,  H04N7/34 ,  H04N7/50

CPC分类号： H04N19/192 ,  H04N19/11 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/593 ,  H04N19/61

摘要： The invention relates to a method for encoding at least one image, divided into macroblocks, one macroblock comprising a set of blocks de pixels. According to eh invention, such a method comprises the following steps for at least one current macroblock of a current image, at least two iterations of the following steps: allocation (31) of a priority level for encoding to at least one pixel of the current macroblock, selection (32) of a pixel with the highest priority level called the priority pixel, prediction (33) of a set of pixels including said priority pixel and an encoding step (35) for a remainder from prediction for a region made up of predicted pixels of said macroblock, called the predicted region, said encoding step being used as and when said predicted region meets a predetermined encoding criterion.

摘要翻译： 提供了一种用于编码至少一个图像的方法，分为宏块，一个宏块包括一组解像素块。 该方法包括，对于当前图像中的至少一个当前宏数据块，至少两次迭代以下步骤：优先级用于编码所述当前宏块的至少一个像素，像素的选择具有最高优先级的分配 叫的优先级的像素，一组包含的优先级的像素，并从预测编码的余数为一个区域由位于宏块的预测像素的步骤像素的预测中，称为预测的区域，所述编码步骤被用作并且当 预测区域满足预定编码标准。

公开(公告)号：EP1839442B1

公开(公告)日：2010-02-17

申请号：EP05826669.3

申请日：2005-12-20

申请人： FRANCE TELECOM

发明人： AMONOU, Isabelle ,  CAMMAS, Nathalie ,  PATEUX, Stéphane

IPC分类号： H04N7/26

CPC分类号： H04N19/615 ,  H04N19/115 ,  H04N19/13 ,  H04N19/146 ,  H04N19/147 ,  H04N19/34 ,  H04N19/37 ,  H04N19/61 ,  H04N19/63

摘要： The invention relates to a method for encoding a sequence of images generating a data stream in the form of a structure of embedded data layers of n successive levels each of which corresponds to the predetermined resolution of said images. Said method comprises an encoding stage consisting in encoding at least one of said layers of an n+1 level by prediction on the basis of said level n layer and in encoding each data layer of the level n in the form of a base sub-stream and, optionally, in the form of at least one enhancement sub-stream enabling to obtain at least one version of the enhanced quality of said images. The inventive method also consists in encoding, for at least one data layer of the n level, at least one single sub-stream enabling to reconstruct the version of said images at said level n resolution with a quality higher than said enhanced qualities, wherein said single sub-steam of the level n layer is not used during the prediction encoding of the layers of a level other than the level n.

公开(公告)号：EP2052545A2

公开(公告)日：2009-04-29

申请号：EP07803994.8

申请日：2007-07-06

申请人： FRANCE TELECOM

发明人： AMONOU, Isabelle ,  PATEUX, Stéphane ,  KERVADEC, Stéphane ,  CAMMAS, Nathalie

IPC分类号： H04N7/24 ,  H04N7/26

CPC分类号： H04N21/234327 ,  H04N21/2662

摘要： Method of coding an image or a sequence of images generating a flow of data in the form of groups of blocks, at least one group of blocks containing image blocks having a resolution and a quality level of identical quantification, characterized in that said method comprises at least the following steps for the at least one group of blocks, of a) a first coding so that each block of the at least one group of blocks has at least one associated parameter that is given a first value, and b) a second coding for giving said associated parameter for at least one block of said at least one group of blocks a second value, so that for said at least one bloc, the first and second values given for said parameter can be combined during decoding in order to provide a value assigned to said parameter.

公开(公告)号：EP2486659A1

公开(公告)日：2012-08-15

申请号：EP10781948.4

申请日：2010-10-01

申请人： France Telecom

发明人： PATEUX, Stéphane ,  AMONOU, Isabelle ,  CAMMAS, Nathalie

IPC分类号： H03M7/40 ,  H04N7/26

CPC分类号： H03M7/4006 ,  H04N19/196 ,  H04N19/197 ,  H04N19/436 ,  H04N19/91

摘要： The invention relates to a method for encoding an image represented by a sequence of symbols. According to the invention, the method includes the following steps: defining subsequences within said sequence; and going through the subsequences applying the following sub-steps for a routine subsequence: determining an adjacent routine encoded group including two previously encoded subsequences, one of which belongs to an adjacent encoded group associated with a subsequence that is separate from said routine subsequence; initialising a routine probability of occurrence of a symbol, taking into account two known probabilities of occurrence of said symbol, relating to two previously encoded subsequences of said adjacent routine encoded group; the consecutive entropic encoding of said symbols, and updating said routine probability of occurrence; and storing said routine probability of occurrence after encoding the last symbol.

摘要翻译： 提供了一种用于编码由符号序列所表示的图像的方法。 该方法包括以下步骤：在序列内 - 定义子序列; 并经历应用以下子步骤进行常规的子序列的子序列：在相邻的常规编码的基团，包括两个先前编码的子序列，其中之一属于在与子序列相关联的相邻的编码的组所做的是从常规子序列单独确定性开采; 初始化符号的发生概率例程，考虑到该符号的发生的两种已知的概率，与邻常规编码组的两个先前编码的子序列; 符号，并更新发生概率例程的连续的熵编码; 和存储发生的编码负荷符号后的常规概率。

公开(公告)号：EP2347590A1

公开(公告)日：2011-07-27

申请号：EP09756012.2

申请日：2009-10-13

申请人： France Telecom

发明人： PATEUX, Stéphane ,  CAMMAS, Nathalie

IPC分类号： H04N7/26 ,  H04N7/36

CPC分类号： H04N19/176 ,  H04N19/194 ,  H04N19/583

摘要： The invention relates to a method for predicting an image by compensation during forward movement from at least one reference image. According to the invention, for at least one block of a reference image, referred to as a reference block, the prediction method (22) includes the following steps: determining (221) at least one piece of movement information, representing a movement between said reference block and a matching block in the image to be predicted; determining (222) at least one enlarged block, including said reference block and at least one point of a block adjacent to said reference block in said reference image; determining (223) a prediction value for at least one point of the image to be predicted from said at least one enlarged block and from said movement information determined for said reference block.

摘要翻译： 提供一种用于通过从至少一个参考图像向前移动期间的补偿来预测图像的方法。 对于被称为参考块的参考图像的至少一个块，预测方法包括以下步骤：确定表示所述参考块和图像中的匹配块之间的移动的至少一个移动信息 预料到的; 确定包括所述参考块的至少一个放大块和与所述参考图像中的所述参考块相邻的块的至少一个点; 以及从所述至少一个放大块中确定要预测的图像的至少一个点的预测值以及从为所述参考块确定的移动信息。

公开(公告)号：EP2304962A2

公开(公告)日：2011-04-06

申请号：EP09772732.5

申请日：2009-06-30

申请人： France Telecom

发明人： PATEUX, Stéphane ,  CAMMAS, Nathalie ,  AMONOU, Isabelle ,  KERVADEC, Sylvain

IPC分类号： H04N7/26 ,  H04N7/32 ,  H04N5/445

CPC分类号： H04N19/46 ,  H04N19/137 ,  H04N19/537 ,  H04N19/543

摘要： The invention relates to a method of coding a sequence  of images, comprising a step of coding at least one block of a current image of the sequence, implementing a prediction (11) associating the block with at least one corresponding block in a reference image. According to the invention, the prediction (11) comprises the following steps, for at least one given block of the current image or of the reference image: determination (111) of a plurality of control vectors for the block; at least one splitting (112) of the block into sub-blocks; determination (113) of a plurality of control vectors for the sub-blocks; determination (114) of a prediction value for at least one point of the current image. Moreover, the method comprises a step of inserting, into a signal representative of the sequence, information regarding reconstruction of the control vectors for the given block.

摘要翻译： 提供了用于编码的图像序列的方法和装置。 该方法包括：编码序列的当前图像的至少一个块，执行一个预测块与参考图像的至少一个对应的块相关联的步骤。 所述预测包括以下步骤，对于当前图像或所述参考图像中的至少一个给定的块：确定用于所述块控制向量的多个; 块为子块中的至少一个分割; 判定为所述子块的控制向量的多个; 和确定用于当前图像的至少一个点的预测值的。 更上方，该方法包括插入的步骤，进入代表该序列的一个信号，信息关于用于所述给定块中的控制向量的重建。

公开(公告)号：EP2227908A2

公开(公告)日：2010-09-15

申请号：EP08870378.0

申请日：2008-12-19

申请人： FRANCE TELECOM

发明人： AMONOU, Isabelle ,  CAMMAS, Nathalie ,  KERVADEC, Sylvain ,  PATEUX, Stéphane

IPC分类号： H04N7/26 ,  H04N7/52 ,  H04N5/45 ,  H04N7/035

CPC分类号： H04N19/523 ,  H04N19/103 ,  H04N19/117 ,  H04N19/132 ,  H04N19/156 ,  H04N19/18 ,  H04N19/46 ,  H04N19/61

摘要： The invention relates to a method for decoding a digital image signal in a decoding terminal, that uses a variable-complexity decoding, enabling, for at least one step in the decoding, the selection of at least one decoding tool from at least two available decoding tools. The method includes the following steps: identifying from said images first so-called control images and second so-called intermediate images; applying to each of said control images, for at least one step of the decoding, at least one predetermined decoding tool imposed by the signal; applying to at least one of said intermediate images, for at least one step of the decoding, at least one decoding tool selected by said decoding terminal and not imposed by said signal.