公开(公告)号：EP1575299A1

公开(公告)日：2005-09-14

申请号：EP04290692.5

申请日：2004-03-12

申请人： Thomson Licensing S.A.

发明人： Francois, Edouard ,  Boisson, Guillaume ,  Vieron, Jerome ,  Robert, Philippe ,  Marquant, Gwenaelle

IPC分类号： H04N7/26

CPC分类号： H04N19/615 ,  H04N19/114 ,  H04N19/13 ,  H04N19/136 ,  H04N19/139 ,  H04N19/14 ,  H04N19/147 ,  H04N19/177 ,  H04N19/19 ,  H04N19/192 ,  H04N19/44 ,  H04N19/61 ,  H04N19/63

摘要： In video encoding, the video frames are spatio-temporally filtered for reduction of spatial and temporal redundancy before they are entropy encoded. Known filtering schemes consider temporally successive frames and are static. It is probable but not necessary that successive frames are most efficient to encode. Therefore, a plurality or all possible frame order permutations are considered for a group of frames (GOP) and evaluated based on a global criterion, which is the sum of local criterion values computed over disjoint sets of successive frames considered in the new order. The local criterion value is deduced from motion estimation processed on each considered set of frames. The best ordering is chosen as the one that minimizes the global criterion value.

摘要翻译： 在视频编码中，视频帧是空间 - 时间滤波用于减少空间和时间冗余的之前它们是熵编码。 已知的过滤方案考虑时间上连续的帧，是静态的。 这是可能的，但没有必要做连续帧是最有效的编码。 因此，多个或所有可能的帧顺序排列被认为是一组基于全局基准帧（GOP）和评估的，所有这一切是上计算不相交的集合中的新的顺序考虑连续帧的本地标准值的总和。 本地基准值是根据对每个所考虑的帧集合的处理的运动估计推导出。 作为一个做了最大限度地减少全球标准值选择最好的排序。

公开(公告)号：EP1455534A1

公开(公告)日：2004-09-08

申请号：EP03290507.7

申请日：2003-03-03

申请人： Thomson Licensing S.A.

发明人： Marquant, Gwenaelle ,  Boisson, Guillaume Appartement 33 ,  Francois, Edouard ,  Vieron, Jérome ,  Robert, Philippe ,  Guillemont, Christine

IPC分类号： H04N7/26 ,  H04N7/46

CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/31 ,  H04N19/34 ,  H04N19/61 ,  H04N19/63

摘要： A method for encoding an interlaced sequence of digital video data decomposes the interlaced video sequence (I) into first (F1) and second (F2) fields, performs digital filtering (SF1) to get lower frequency (L) and higher frequency (H) component signals of the first fields (F1), and uses spatio-temporal filtering (STF) and motion estimation (ME1) for generating base layer signals (P, MV1) being suitable for reconstruction of a progressive mode video sequence (V1,V2) in a receiver. Advantageously, both the spatio-temporal filter (STF) at the encoder, and the inverse process (STS) at the receiver, can perform scaling in spatial and temporal dimension. The second fields (F2) are used to generate enhancement signals (FF2, MV2), which enable a receiver to reproduce an interlaced video sequence of the full, or scaled, spatial and/or temporal resolution.

摘要翻译： 用于编码数字视频数据的隔行序列的方法将隔行视频序列（I）分解为第一（F1）和第二（F2）场，执行数字滤波（SF1）以获得较低频率（L）和较高频率（H） （F1）的分量信号，并且使用时空滤波（STF）和运动估计（ME1）来生成适于重构逐行模式视频序列（V1，V2）的基本层信号（P，MV1） 在接收器中。 有利的是，编码器处的时空滤波器（STF）和接收器处的逆处理（STS）都可以执行空间和时间维度的缩放。 第二场（F2）用于产生增强信号（FF2，MV2），这使得接收机能够再现完整或缩放的空间和/或时间分辨率的隔行视频序列。

公开(公告)号：EP1367831A2

公开(公告)日：2003-12-03

申请号：EP03101367.5

申请日：2003-05-15

申请人： Thomson Licensing S.A.

发明人： Stauder, Jürgen ,  Robert, Philippe

IPC分类号： H04N7/24

CPC分类号： H04N21/23412 ,  H04N21/44012

摘要： The invention relates to a method of fragmenting multimedia data (D' 5 , D' 6, D' 7,... D' 11, ) associated with navigation nodes (N' 5 , N' 6 , N' 7, ..., N' 11 ), a node (N' i ) controlling access to an associated data item (D' i ) and to a next node (N' i+1 ).
In accordance with the invention, the invention is characterized in that,

nodes (N' 6 , N' 7 , N' 8 , and N' 9 ) and data (D' 6, D' 7, D' 8 , and D' 9 ) associated with the latter in a successive manner are grouped into a temporary cell (C' t ), comprising a starting node (N' 5 ) and the data (D' 5 ) associated with this node, each node grouped into the temporary cell following a node already included in this temporary cell until the size of the temporary cell reaches a threshold value, then
a pair of nodes (N' 7 ; N' 8 ) which follow one another, of the temporary cell (C' t ), minimizing a parameter (T i ) dependent on the number of data common to the data (D' 7 ; D' 8 ) associated with the two nodes (N' 7 ; N' 8 ) of the pair is identified, a definitive cell (C' 5 , C' 6 , C' 7 ) being formed with the data (D' 5 , D' 6 , D' 7 ) grouped into the temporary cell prior to the data (D' 7 ) associated with the first node (N' 7 )of the pair.

摘要翻译： 本发明涉及一种与导航节点（N'5，N'6，N'7，...）相关的多媒体数据（D'5，D'6，D'7，... D'11） ，N'11），控制对相关数据项（D'i）和下一个节点（N'i + 1）的访问的节点（N'i）。 根据本发明，本发明的特征在于，节点（N'6，N'7，N'8和N'9）和数据（D'6，D'7，D'8 和D'9）被分组为临时小区（C't），其包括起始节点（N'5）和与该节点相关联的数据（D'5），每个节点 分组到临时小区中已经包括的节点之后的临时小区，直到临时小区的大小达到阈值，则临时小区之后彼此相邻的一对节点（N'7; N'8） C't），根据与该对的两个节点（N'7; N'8）相关联的数据（D'7; D'8）共同的数据数目，最小化参数（Ti） 在与数据（D'7）相关联的数据（D'7）之前，将数据（D'5，D'6，D'7）形成为一个确定单元（C'5，C'6，C'7） 该对的第一个节点（N'7）。

公开(公告)号：EP1496476A1

公开(公告)日：2005-01-12

申请号：EP04102739.2

申请日：2004-06-16

申请人： Thomson Licensing S.A.

发明人： Francois, Edouard ,  Robert, Philippe

IPC分类号： G06T15/20

CPC分类号： G06T15/205 ,  G06T9/00 ,  G06T19/003

摘要： The invention relates to a device for coding two-dimensional images representing viewpoints of a three-dimensional virtual scene, a movement in this scene, simulated by the successive displaying of images, being limited according to predetermined trajectories.
In accordance with the invention, the device is characterized in that it comprises means for coding a trajectory with the aid of a graph (300) of successive nodes N i such that with each node N i is associated at least one two-dimensional source and one transformation of this image.

摘要翻译： 本发明涉及一种用于编码表示三维虚拟场景的二维图像的装置，该场景中由根据预定轨迹限制的图像的连续显示而模拟的运动。 根据本发明，该装置的特征在于，其包括借助于连续节点Ni的曲线图（300）对轨迹进行编码的装置，使得每个节点Ni与至少一个二维 来源和这个图像的一个转换。

公开(公告)号：EP1367831A3

公开(公告)日：2004-07-07

申请号：EP03101367.5

申请日：2003-05-15

申请人： Thomson Licensing S.A.

发明人： Stauder, Jürgen ,  Robert, Philippe

IPC分类号： H04N7/24

CPC分类号： H04N21/23412 ,  H04N21/44012

摘要： The invention relates to a method of fragmenting multimedia data (D' 5 , D' 6, D' 7,... D' 11, ) associated with navigation nodes (N' 5 , N' 6 , N' 7, ..., N' 11 ), a node (N' i ) controlling access to an associated data item (D' i ) and to a next node (N' i+1 ). In accordance with the invention, the invention is characterized in that, nodes (N'6, N'7, N'8, and N'9) and data (D'6, D'7, D'8, and D'9) associated with the latter in a successive manner are grouped into a temporary cell (C't), comprising a starting node (N'5) and the data (D'5) associated with this node, each node grouped into the temporary cell following a node already included in this temporary cell until the size of the temporary cell reaches a threshold value, then a pair of nodes (N'7; N'8) which follow one another, of the temporary cell (C't), minimizing a parameter (Ti) dependent on the number of data common to the data (D'7; D'8) associated with the two nodes (N'7; N'8) of the pair is identified, a definitive cell (C'5, C'6, C'7) being formed with the data (D'5, D'6, D'7) grouped into the temporary cell prior to the data (D'7) associated with the first node (N'7)of the pair.

公开(公告)号：EP1349116A1

公开(公告)日：2003-10-01

申请号：EP03290554.9

申请日：2003-03-07

申请人： Thomson Licensing S.A.

发明人： Robert, Philippe ,  Nicolas, Yannick

IPC分类号： G06T17/20

CPC分类号： G06T17/20

摘要： The process is characterized in that it comprises, for validating the model, the following steps:

predetermination of a maximum permitted distortion (5) on a 2D synthesized image (4), generated by the approximation inherent in the model (2),
calculation, for a point I of a reference image (7) and on a set of synthesized images (4) representing the 3D point of the scene corresponding to this point I, of the minimum (z i - Δ zi 1 ) and maximum (z i + Δ zi 2 ) depth values of the depth zi of this point I corresponding to this maximum distortion,
calculation of a span around the depth z i of this point I, dependant on the minimum value of the error Δ zi 2 and on the minimum value of the error Δ zi 1 among the values calculated for the synthesized images of the set.

Applications relate to the construction of models for the synthesization of images or the compression of data.

摘要翻译： 该过程的特征在于，其包括用于验证模型的以下步骤：通过模型（2）中固有的近似生成的2D合成图像（4）上的最大允许失真（5）的预先确定，计算， 对于参考图像（7）的点I和表示与该点I的对应于该点I的场景的3D点的合成图像（4）的最小（zi-DELTA zi 1）和最大（z i） + DELTA zi <2>）这个点I的深度zi的​​深度值对应于该最大失真，计算该点I的深度zi周围的跨度，取决于误差最小值DELTA zi <2>和 对于为集合的合成图像计算的值中的误差DELTA zi <1>的最小值。 应用涉及用于合成图像或数据压缩的模型的构建。