公开(公告)号：US08654843B2

公开(公告)日：2014-02-18

申请号：US11871640

申请日：2007-10-12

申请人： Patrice Onno ,  Xavier Henocq ,  Fabrice Le Leannec

发明人： Patrice Onno ,  Xavier Henocq ,  Fabrice Le Leannec

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/114 ,  H04N19/137 ,  H04N19/159 ,  H04N19/162 ,  H04N19/17 ,  H04N19/172 ,  H04N19/177 ,  H04N19/597 ,  H04N19/61

摘要： The present invention concerns a method of coding a plurality of digital image signals in a bitstream, said signals each corresponding to a view of a scene, the said coding method comprising the use of a pre-determined predictive coding structure, the views being associated with input views in the coding structure. The coding method according to the invention comprises, for at least one pair of views of the scene, steps of determining a spatial intersection zone (E44) and of calculating a value representing the similarity between the signals corresponding to said views (E45), according to at least some of the signals contained in said spatial intersection zone. These steps are followed by a step of associating (E46) at least one view with an input view of the predictive coding structure according to at least one calculated similarity value. The invention applies both to fixed image signals and to image sequences.

摘要翻译： 本发明涉及一种在比特流中编码多个数字图像信号的方法，所述信号各自对应于场景的视图，所述编码方法包括使用预定的预测编码结构，所述视图与 在编码结构中输入视图。 根据本发明的编码方法包括对于场景的至少一对视图，确定空间交叉区域（E44）并计算表示对应于所述视图（E45）的信号之间的相似度的值的步骤，根据 至少包含在所述空间交叉区域中的一些信号。 这些步骤之后是根据至少一个计算的相似度值将（E46）至少一个视图与预测编码结构的输入视图相关联的步骤。 本发明既适用于固定图像信号又适用于图像序列。

公开(公告)号：US08392803B2

公开(公告)日：2013-03-05

申请号：US12697925

申请日：2010-02-01

申请人： Xavier Henocq ,  Fabrice Le Leannec ,  Patrice Onno

发明人： Xavier Henocq ,  Fabrice Le Leannec ,  Patrice Onno

IPC分类号： H03M13/00

CPC分类号： H04N19/31 ,  H04N19/33 ,  H04N19/44

摘要： To identify data losses in a video sequence transmitted between a server and at least one client over a communication network, the sequence comprising a plurality of video data containers coded using scalable video coding employing a predetermined number of hierarchical levels, the video data containers being transmitted over the network via a series of data transport packets: a process (311) is carried out of detecting losses and of locating the video data affected by those losses, without decoding the video data, by combining information coming from transport packets and information coming from video data container headers.Application for improving decoding on receiving a video sequence.

摘要翻译： 为了识别通过通信网络在服务器和至少一个客户端之间传输的视频序列中的数据丢失，该序列包括使用预定数量的分层级别的可分级视频编码编码的多个视频数据容器，传输的视频数据容器 通过一系列数据传输分组在网络上进行：通过组合来自传输分组的信息和来自...的信息来检测损失并定位受这些损失影响的视频数据，而不对视频数据进行解码，处理（311） 视频数据容器标题。 用于改善接收视频序列的解码的应用。

公开(公告)号：US08340179B2

公开(公告)日：2012-12-25

申请号：US11688679

申请日：2007-03-20

申请人： Fabrice Le Leannec ,  Xavier Henocq ,  Patrice Onno

发明人： Fabrice Le Leannec ,  Xavier Henocq ,  Patrice Onno

IPC分类号： H04N11/02

CPC分类号： H04N19/36 ,  H04N19/124 ,  H04N19/176 ,  H04N19/187 ,  H04N19/34 ,  H04N19/61

摘要： The method of scalable coding of moving images using at least one reference image for at least one image to code, comprises, at least on passing, for a so-called “current” image, from an initial quality level to an intended quality level different from the initial quality level: a step (705) of coding the current image as far as the intended quality level to provide a coded current image, a step (710) of reconstructing the current image at the intended quality level to provide a reconstructed current image of intended quality level, a step (715) of obtaining at least one reference image of the current image at the initial quality level, to provide a prediction image for the initial quality level, a step (720, 725) of determining a differential texture refinement depending on the prediction image for the initial quality level and on the reconstructed current image of intended quality level and a step (730) of coding the differential texture refinement.

摘要翻译： 使用至少一个图像编码的至少一个参考图像来对运动图像进行可缩放编码的方法包括至少在所谓的当前图像上从最初的质量水平到不同于 初始质量水平：将当前图像编码为目标质量水平以提供编码的当前图像的步骤（705）;以预期质量水平重构当前图像以提供重建的当前图像的步骤（710） 在步骤（715）中，获取初始质量水平的当前图像的至少一个参考图像，以提供用于初始质量水平的预测图像;确定差分纹理细化的步骤（720,725） 取决于初始质量水平的预测图像和预期质量水平的重构的当前图像以及编码差分纹理细化的步骤（730）。

公开(公告)号：US20110013538A1

公开(公告)日：2011-01-20

申请号：US12837542

申请日：2010-07-16

申请人： Xavier Henocq ,  Fabrice Le Leannec ,  Patrice Onno

发明人： Xavier Henocq ,  Fabrice Le Leannec ,  Patrice Onno

IPC分类号： H04L12/26

CPC分类号： H04N21/44209 ,  H04L43/0894 ,  H04N19/33 ,  H04N19/34 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/4621 ,  H04N21/6405

摘要： The invention in particular concerns a method and a device for estimating a level of use of a communication network linking a server and at least one client, said communication network being used to transmit a data stream at a transmission rate corresponding to the temporal frequency of said data stream, said data stream comprising at least one item of information characterizing a theoretical rate dependent on said transmission rate of said data stream. After having obtained (121) said theoretical rate of said data stream, the real reception rate of at least one part of said data stream is evaluated (109). Said theoretical rate and said evaluated rate are then compared (113) to estimate said level of use of said communication network. The level of subscription of a client to multicast sessions may be adapted according to the level of use of the communication network.

摘要翻译： 本发明特别涉及一种用于估计链接服务器和至少一个客户端的通信网络的使用水平的方法和设备，所述通信网络用于以与所述服务器的时间频率对应的传输速率发送数据流 数据流，所述数据流包括表征理论速率的至少一项信息，所述理论速率取决于所述数据流的所述传输速率。 在获得（121）所述数据流的理论速率之后，评估所述数据流的至少一部分的实际接收速率（109）。 然后将所述理论速率和所述评估速率进行比较（113）以估计所述通信网络的所述使用水平。 可以根据通信网络的使用级别来调整客户端到组播会话的订阅级别。

公开(公告)号：US20100132002A1

公开(公告)日：2010-05-27

申请号：US12595953

申请日：2008-06-27

申请人： Xavier Henocq ,  Patrice Onno ,  Fabrice Le Leannec

发明人： Xavier Henocq ,  Patrice Onno ,  Fabrice Le Leannec

IPC分类号： H04N7/173 ,  H04N7/12

CPC分类号： H03M13/03 ,  H04N19/103 ,  H04N19/12 ,  H04N19/149 ,  H04N19/174 ,  H04N19/187 ,  H04N19/188 ,  H04N19/46 ,  H04N19/61 ,  H04N19/67 ,  H04N19/89 ,  H04N19/895 ,  H04N21/234327 ,  H04N21/2383 ,  H04N21/2662 ,  H04N21/8451

摘要： The method of transmitting a video stream over a network between a transmission device and at least one reception device comprises: —a step (502) of encoding so-called “primary” data of the video stream according to a first type of encoding, —a step (516, 518) of obtaining so-called “secondary” video data, dependent on the primary data, by the simulation of transmission errors potentially suffered by the video stream and at least one method of masking losses due to said transmission errors able to be implemented by a reception device able to decode the primary video stream encoded according to the first type of encoding, —a step (520, 522) of encoding secondary data according to a second type of encoding different from the first type of encoding, and —a step of transmitting, by means of the network, primary data encoded according to the first type of encoding and at least some of the secondary data encoded with the second type of encoding.

摘要翻译： 在传输设备和至少一个接收设备之间通过网络发送视频流的方法包括： - 根据第一类型的编码对所述视频流的所谓“主”数据进行编码的步骤（502）， - 取决于主要数据，通过对视频流可能遭受的传输错误的模拟获得所谓的“次要”视频数据的步骤（516,518）以及由于所述传输错误导致的至少一种掩蔽损失的方法 由能够对根据第一类型的编码编码的主要视频流进行解码的接收装置来实现 - 根据与第一类型的编码不同的第二类型的编码来对次要数据进行编码的步骤（520,522） 以及 - 通过所述网络发送根据所述第一类型的编码编码的主数据以及用所述第二类型编码编码的所述辅助数据中的至少一些的步骤。

公开(公告)号：US20090290648A1

公开(公告)日：2009-11-26

申请号：US12468343

申请日：2009-05-19

申请人： Patrice Onno ,  Fabrice Le Leannec ,  Xavier Henocq

发明人： Patrice Onno ,  Fabrice Le Leannec ,  Xavier Henocq

IPC分类号： H04N7/64

CPC分类号： H04N21/6377 ,  H04N19/103 ,  H04N19/164 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23424 ,  H04N21/234327 ,  H04N21/234363 ,  H04N21/44016 ,  H04N21/6379 ,  H04N21/658 ,  H04N21/8451

摘要： The method of transmitting image data of a sequence of images comprises, for at least one image of said sequence of images:a step of coding an initial image at a first resolution, a step (602, 607) of determining a corrective signal representing the difference between the image temporally following the initial image at a second resolution and an image at the second resolution calculated from the initial image at the first resolution, a step (603, 604, 608, 609) of coding said corrective signal anda step of transmitting the coded image at the first resolution and the coded corrective signal.

摘要翻译： 发送图像序列的图像数据的方法包括：对于所述图像序列的至少一个图像：以第一分辨率编码初始图像的步骤，确定表示所述图像的校正信号的步骤（602,607） 在第一分辨率下从初始图像计算的在第二分辨率的初始图像之后的图像和在第二分辨率下计算的图像之间的图像之间的差;编码所述校正信号的步骤（603,604,608,609） 以第一分辨率和编码的校正信号发送编码图像。

公开(公告)号：US20090278956A1

公开(公告)日：2009-11-12

申请号：US12435730

申请日：2009-05-05

申请人： Fabrice Le Leannec ,  Patrice Onno ,  Xavier Henocq

发明人： Fabrice Le Leannec ,  Patrice Onno ,  Xavier Henocq

IPC分类号： H04N5/228 ,  G06K9/36

CPC分类号： H04N19/59 ,  H04N19/33 ,  H04N19/37 ,  H04N19/70

摘要： A method of determining priority attributes respectively associated with a plurality of containers defining at least one image at a plurality of spatial resolution levels comprises the following steps: for at least two distinct spatial resolution levels considered, selecting at least one container (L1, L2; L1, I1) relative to a level lower than the level considered so as to optimize a rate-distortion criterion obtained by the use, for the decoding of the image at the level considered, of only the containers (L1, L2; L1, I1) selected as data relative to said lower level; associating with each of the selected containers (L1, I1, L2) an attribute representing a priority increasing with the maximum level for which the container is selected. A coding method, devices and computer program that are associated therewith are also provided.

摘要翻译： 确定分配与多个容器相关联的优先级属性的方法，所述多个容器以多个空间分辨率级别定义至少一个图像，包括以下步骤：对于所考虑的至少两个不同的空间分辨率级别，选择至少一个容器（L1，L2; L1，I1）相对于低于所考虑的水平的水平，以便优化通过使用仅对容器（L1，L2; L1，I1）进行解码的图像所获得的速率 - 失真准则 ）被选择为相对于所述较低级别的数据; 与所选择的容器（L1，I1，L2）中的每一个相关联，表示优先级随着容器被选择的最大级别而增加的属性。 还提供了与其相关联的编码方法，设备和计算机程序。

公开(公告)号：US09124953B2

公开(公告)日：2015-09-01

申请号：US12782869

申请日：2010-05-19

申请人： Xavier Henocq ,  Fabrice Le Leannec ,  Patrice Onno

发明人： Xavier Henocq ,  Fabrice Le Leannec ,  Patrice Onno

IPC分类号： H04N7/12 ,  H04N21/845 ,  H04N21/2343 ,  H04N21/2383 ,  H04N21/24 ,  H04N21/2662 ,  H04N21/6405 ,  H04N21/6437 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/51 ,  H04N19/129 ,  H04N19/37 ,  H04N19/166 ,  H04N19/174 ,  H04N19/187

CPC分类号： H04N21/8451 ,  H04N19/129 ,  H04N19/166 ,  H04N19/174 ,  H04N19/176 ,  H04N19/187 ,  H04N19/37 ,  H04N19/46 ,  H04N19/51 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/2383 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/6405 ,  H04N21/6437

摘要： The method for transmitting video data encoded in a scalable video stream representing said video data in a plurality of layers, comprises, for at least one layer: a step of obtaining (317) pre-encoded macroblocks of said scalable video stream representing said video data in a plurality of layers, a step of grouping (319) macroblocks, used for inter layer prediction, of the pre-encoded macroblocks obtained by the obtaining step, into first groups of macroblocks, a step of grouping (319) macroblocks, not used for inter layer prediction, of the pre-encoded macroblocks obtained by the obtaining step, into second groups of macroblocks, a step of estimating a loss variability over a network, a step of selecting (331) groups of macroblocks from the first and second groups of macroblocks based on the loss variability estimated by the estimating step and a step of transmitting (333) the groups of macroblocks selected by the selecting step over the network.

摘要翻译： 用于发送以代表多个层的所述视频数据的可分级视频流中编码的视频数据的方法包括至少一层：获取（317）表示所述视频数据的所述可分级视频流的预编码宏块的步骤 在多层中，将通过获取步骤获得的预先编码的宏块的层间预测的（319）宏块分组为第一组宏块，将未分配（319）宏块的步骤 用于通过获取步骤获得的预先编码的宏块的层间预测转换成第二组宏块，估计网络上的损耗变异性的步骤，从第一组和第二组中选择（331）宏块组的步骤 基于由所述估计步骤估计出的损失可变性的宏块;以及通过所述网络发送（333）由所述选择步骤选择的所述宏块组的步骤。

公开(公告)号：US08462854B2

公开(公告)日：2013-06-11

申请号：US12838637

申请日：2010-07-19

申请人： Xavier Henocq ,  Patrice Onno ,  Fabrice Le Leannec

发明人： Xavier Henocq ,  Patrice Onno ,  Fabrice Le Leannec

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/61 ,  H04N19/63 ,  H04N19/89 ,  H04N19/895

摘要： A method of reconstructing a sequence of video data in a receiving device after the video sequence has been transmitted in encoded form over a network, the encoded video sequence comprising containers of encoded video data, wherein the method includes the following steps: determining (809) containers of encoded video data affected by data losses during their transmission over the network, determining (813) the time that would be necessary for decoding said containers of encoded video data affected by data losses if they had not been affected by data losses, allocating (819, 820, 821) the time thus determined to reconstructing video data of the sequence.

摘要翻译： 一种在经过网络以编码形式发送视频序列之后，在接收装置中重构视频数据序列的方法，该编码视频序列包括编码视频数据的容器，其中该方法包括以下步骤：确定（809） 在网络传输期间受数据丢失影响的编码视频数据的容器确定（813）如果数据丢失不受数据丢失影响，则解码受数据丢失影响的编码视频数据的所有容器进行解码所需的时间， 819,820,821）确定重建序列的视频数据的时间。

公开(公告)号：US08429706B2

公开(公告)日：2013-04-23

申请号：US12035769

申请日：2008-02-22

申请人： Xavier Henocq ,  Patrice Onno ,  Fabrice Le Leannec

发明人： Xavier Henocq ,  Patrice Onno ,  Fabrice Le Leannec

IPC分类号： H04N7/173

CPC分类号： H04L47/15 ,  H04L47/10 ,  H04L47/11 ,  H04L65/4076 ,  H04N7/17318 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/44209 ,  H04N21/4621 ,  H04N21/6405 ,  H04N21/6582 ,  H04N21/8451

摘要： This method of transmitting coded data, representing a digital video, from a server to a plurality of clients, at least one subset of the clients using congestion control algorithms, uses a plurality of signals for passing from a coded representation of the video at a given quality level to a coded representation at least one quality level different from the given level. The sending (E618) of at least one of the passage signals at least to the subset of clients depends on information representing the behavior of the congestion control algorithms used by the subset of clients.

摘要翻译： 这种使用拥塞控制算法从服务器向多个客户端发送表示数字视频的编码数据的方法使用多个信号从视频的编码表示中传递给给定的 质量水平与编码表示不同于给定水平的至少一个质量水平。 至少一个通过信号的至少一个通信信号的发送（E618）至少到客户端的子集取决于表示客户端子集使用的拥塞控制算法的行为的信息。