公开(公告)号：US20110038386A1

公开(公告)日：2011-02-17

申请号：US12989706

申请日：2009-04-21

申请人： Bertrand Berthelot ,  Stéphanie Relier

发明人： Bertrand Berthelot ,  Stéphanie Relier

IPC分类号： H04L29/02

CPC分类号： H04N21/64792 ,  H04N21/234327 ,  H04N21/2381 ,  H04N21/64322 ,  H04N21/6437

摘要： A video stream is produced coded in a hierarchical manner in the form of a base stream and of an enhancement stream heightened along one dimension and transmitted via a packet transmission network according to a determined transmission protocol. At the level of a transmission entity, a first series is ordered according to a first order of coded packets, from an encoder. A series of packets is obtained, coded according to a second order by grouping said coded packets into groups of N packets, by traversing in the first order the coded packets of the first series, said N packets of one and the same group either all relating to the base stream or all relating to the enhancement stream. Thereafter, packets to be transmitted are composed, said packets comprising respectively as payload the groups of the series of coded packets.

摘要翻译： 以基本流的形式以及沿着一个维度增强的增强流的形式以层次的方式编码视频流，并且经由分组传输网络根据所确定的传输协议进行传输。 在传输实体的级别，根据来自编码器的编码分组的第一顺序来排序第一序列。 通过以一级顺序遍历第一序列的编码分组，所有相关组的所有N个分组都相关，获得一系列分组，根据第二阶编码，将所述编码分组分组成N个分组组 到基本流或全部与增强流相关。 此后，组合要发送的分组，所述分组分别包括作为一系列编码分组的组的有效载荷。

公开(公告)号：US08548164B2

公开(公告)日：2013-10-01

申请号：US11630248

申请日：2005-06-14

申请人： Pascal Nourry ,  Stéphanie Relier ,  François Daude

发明人： Pascal Nourry ,  Stéphanie Relier ,  François Daude

IPC分类号： H04L29/00

CPC分类号： H04L9/065 ,  H04L9/0618 ,  H04L9/12 ,  H04L2209/30

摘要： Digital data blocks are encrypted, each data block that is to be encrypted being associated with a time reference. A value of an initialization vector Vi and an encryption key K are defined. Then, a counter C is obtained for each data block to be encoded, by combining the time reference and the value of the initialization vector. A series of binary encryption elements is obtained via an encryption function taking the encryption key K and counter C as input parameters. The data block is then encrypted by combining it with the series of binary encryption elements.

摘要翻译： 数字数据块被加密，要加密的每个数据块与时间参考相关联。 定义初始化矢量Vi和加密密钥K的值。 然后，通过组合时间基准和初始化矢量的值，获得要编码的每个数据块的计数器C. 通过采用加密密钥K和计数器C作为输入参数的加密函数获得一系列二进制加密元件。 然后通过将数据块与一系列二进制加密元素组合来对数据块进行加密。

公开(公告)号：US09516331B2

公开(公告)日：2016-12-06

申请号：US13503553

申请日：2010-10-14

申请人： Isabelle Amonou ,  Nathalie Cammas ,  Stéphane Pateux ,  Stéphanie Relier

发明人： Isabelle Amonou ,  Nathalie Cammas ,  Stéphane Pateux ,  Stéphanie Relier

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

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

摘要： A method and apparatus are provided for encapsulating a plurality of data substreams encoded in a bit stream, wherein the encoded data substream is obtained by entropy encoding of a symbol subsequence representing an image or a series of images. The method includes grouping data substreams into substream pairs according to an iterative traversal order predetermined from the plurality of substreams, and on the basis of a pair of the substreams, obtaining a symmetrical pair by reversing a data order making up the second substream of the pair. The obtained pairs are then concatenated within a sequence. The binary stream is created by encapsulating the sequence and information related to a number of substreams and related to the sizes of pairs of symmetrical substreams.

摘要翻译： 提供了一种用于封装编码在比特流中的多个数据子流的方法和装置，其中通过对表示图像或一系列图像的符号子序列进行熵编码来获得编码数据子流。 该方法包括根据从多个子流预定的迭代遍历顺序将数据子流分组成子流对，并且基于一对子流，通过反转构成该对的第二子流的数据顺序来获得对称对 。 所获得的对然后在序列内连接。 通过封装与多个子流相关的序列和信息并与对称子流对的大小相关联来创建二进制流。