公开(公告)号：WO2004068858A3

公开(公告)日：2004-09-10

申请号：PCT/FR2004050027

申请日：2004-01-23

Applicant: MEDIALIVE ,  LECOMTE DANIEL ,  PARAYRE-MITZOVA DANIELA ,  CAPOROSSI JEROME

Inventor： LECOMTE DANIEL ,  PARAYRE-MITZOVA DANIELA ,  CAPOROSSI JEROME

IPC: H04N7/167 ,  H04N7/26

CPC classification number: H04N7/1675 ,  H04N19/63 ,  H04N19/88 ,  H04N21/23476 ,  H04N21/25891 ,  H04N21/2662 ,  H04N21/4405 ,  H04N21/4621

Abstract: The invention relates to a method for the secure distribution of digital still images in the form of streams comprising sequences of data, each containing part of the image information. The inventive method comprises a modification step involving the modification of the original stream, in which at least one part of the aforementioned data sequences is modified to produce a modified stream with the same nominal format as the original stream. The method also comprises a modified stream transmission step and a reconstruction step using a decoder on the recipient device. The invention is characterised in that the reconstruction is adaptive and progressive according to information originating from a digital profile of the recipient user. Moreover, the original stream is coded using a wavelet coding method. The above-mentioned modification produces a main modified stream and complementary information which enables the original stream to be reconstructed by a decoder. The method comprises a modified stream transmission step and a step involving the transmission of a subset of the complementary modification information to the recipient device, said subset being determined according to information originating from a digital profile of the recipient.

Abstract translation: 本发明涉及一种用于以数据形式安全地分发数字静止图像的方法，该数据流包括数据序列，每个数据都包含图像信息的一部分。 本发明的方法包括涉及原始流的修改的修改步骤，其中上述数据序列的至少一部分被修改以产生具有与原始流相同的标称格式的修改的流。 该方法还包括在接收设备上使用解码器的修改的流传输步骤和重建步骤。 本发明的特征在于，根据来自接收者用户的数字简档的信息，重建是自适应和渐进的。 此外，使用小波编码方法对原始流进行编码。 上述修改产生主要修改流和互补信息，使得能够由解码器重构原始流。 所述方法包括修改的流传输步骤和涉及将所述补充修改信息的子集传送到所述接收方设备的步骤，所述子集根据来自所述接收者的数字简档的信息确定。

公开(公告)号：WO2004062287A3

公开(公告)日：2004-08-26

申请号：PCT/FR0350192

申请日：2003-12-19

Applicant: MEDIALIVE ,  LECOMTE DANIEL ,  PARAYRE-MITZOVA DANIELA ,  CAPOROSSI JEROME

Inventor： LECOMTE DANIEL ,  PARAYRE-MITZOVA DANIELA ,  CAPOROSSI JEROME

IPC: H04N5/76 ,  H04N7/173 ,  H04N7/24 ,  H04N7/26

CPC classification number: H04N21/44055 ,  H04N5/76 ,  H04N7/17318 ,  H04N19/17 ,  H04N19/63 ,  H04N19/88 ,  H04N21/23476 ,  H04N21/2541 ,  H04N21/4334 ,  H04N21/835 ,  H04N21/845

Abstract: The invention relates to a method for secure distribution of fixed digital images according to a nominal format arising from digital coding in wavelets, represented by a stream consisting of at least one packet (relating to the organization of the binary sequence) containing at least one block including individual digitally coded elements according to a specific manner inside the stream concerned and used by all decoders able to retrieve or to decode it in order to display the image correctly. The inventive method comprises the following steps: a preparatory stage consisting in modifying at least one of said individual elements according to at least one substitution operation consisting in the extraction of said individual element, followed by the replacement thereof with dummy data; a stage of transmission of the main stream modified according to the nominal format, made up of blocks modified during the preparatory stage, and by a separate path of the main stream of additional digital information, enabling the original stream to be retrieved based on calculation on the target equipment according to the main stream and the additional information.

Abstract translation: 本发明涉及一种用于根据由小波中的数字编码产生的标称格式来安全分配固定数字图像的方法，该方法由包括至少一个分组（涉及二进制序列的组织）的流表示，该分组包含至少一个块 包括根据相关流内部的特定方式的个别数字编码的元素，并由所有能够检索或解码它以正确显示图像的解码器使用。 本发明的方法包括以下步骤： - 准备阶段，其包括根据至少一个替代操作修改至少一个所述单独元素，其中所述替换操作包括提取所述单独元素，随后用伪数据替换它; 根据标称格式修改的主流的传输阶段，其由在准备阶段修改的块组成，并且由附加数字信息的主流的单独路径组成，使得原始流能够基于 根据主流和附加信息的目标设备。

公开(公告)号：WO2005088902A3

公开(公告)日：2006-07-06

申请号：PCT/FR2005000553

申请日：2005-03-08

Applicant: MEDIALIVE ,  LECOMTE DANIEL ,  CAPOROSSI JEROME ,  PARAYRE-MITZOVA DANIELA

Inventor： LECOMTE DANIEL ,  CAPOROSSI JEROME ,  PARAYRE-MITZOVA DANIELA

IPC: H03M7/42 ,  G06F21/10 ,  G06F21/62 ,  G11B20/00 ,  H04L9/00

CPC classification number: G11B20/00086 ,  G06F21/10 ,  G06F21/6209

Abstract: The invention relates to a method for the secure distribution of compressed digital texts comprising blocks of binary data and resulting from transformations applied to an original text. The inventive method comprises two steps, namely: a preparatory step consisting in modifying at least one binary datum in one of the aforementioned blocks using at least one substitution operation involving the extraction of said datum from a block and the replacement thereof with a decoy; and a step consisting in transmitting (i) a modified compressed digital text (5) that conforms to the format of the original text, comprising blocks that were modified during the preparatory step, and, over a separate channel from the modified compressed text (5), (ii) a piece of complementary digital information (4) which can be used to restore the original compressed digital text (1) on the destination equipment from the modified compressed digital text (5) and said complementary information (4). The invention also relates to a system which is used to implement said method.

Abstract translation: 本发明涉及一种用于安全分发包含二进制数据块并由应用于原始文本的变换产生的压缩数字文本的方法。 本发明的方法包括两个步骤，即：准备步骤包括使用涉及从块中提取所述数据并用诱饵替换的至少一个替代操作修改上述块之一中的至少一个二进制数据; 以及包括发送（i）符合原始文本的格式的修改的压缩数字文本（5）的步骤，包括在准备步骤期间被修改的块，以及通过与修改的压缩文本（5 ），（ii）可以用于从修改的压缩数字文本（5）和所述补充信息（4）恢复目的地设备上的原始压缩数字文本（1）的一条互补数字信息（4）。 本发明还涉及一种用于实现所述方法的系统。

公开(公告)号：WO2004095840A2

公开(公告)日：2004-11-04

申请号：PCT/FR2004000947

申请日：2004-04-16

Applicant: MEDIALIVE ,  LECOMTE DANIEL ,  CAPOROSSI JEROME

Inventor： LECOMTE DANIEL ,  CAPOROSSI JEROME

IPC: H04N7/167 ,  H04N7/24 ,  H04N7/26

CPC classification number: H04N21/23418 ,  H04N7/1675 ,  H04N19/10 ,  H04N19/31 ,  H04N19/48 ,  H04N19/61 ,  H04N19/62 ,  H04N19/63 ,  H04N19/70 ,  H04N21/2347 ,  H04N21/23476 ,  H04N21/4621 ,  H04N21/631 ,  H04N21/64792 ,  H04N21/8355

Abstract: The invention relates to a method and system which are used for the visual scrambling of a video sequence and for the reconstruction (descrambling) of the original content thereof from a digital video stream obtained from encoding based on a wavelet transform. The method for the secure distribution of video sequences according to a digital stream format stems from wavelet-based coding, said format consisting of frames comprising blocks containing wavelet coefficients which describe visual elements. According to the invention, before transmission to the client equipment, the stream is analysed in order to generate (i) a modified main stream through the removal and replacement of certain pieces of information encoding the original stream and having the same format as said original stream, and (ii) a complementary piece of information with any format, comprising digital information which encode the original stream and which can be used to reconstruct the aforementioned modified frames. The modified main stream and the complementary information thus generated are then transmitted separately from the server to the destination equipment and, subsequently, a synthesis of a stream with the nominal format is calculated on the destination equipment as a function of the modified main stream and the complementary information. The invention also relates to a system comprising at least one multimedia server containing the original video sequences, a video stream analysis device, a device for separating the original video stream into a modified main stream and a complementary piece of information according to the aforementioned analysis and at least one device on the destination equipment for the reconstruction of the video stream as a function of the modified main stream and the complementary information.

Abstract translation: 本发明涉及一种方法和系统，用于视频序列的视觉加扰以及从基于小波变换的编码获得的数字视频流重构（解扰）其原始内容。 用于根据数字流格式安全地分配视频序列的方法源于基于小波的编码，所述格式由包含描述视觉元素的小波系数的块组成。 根据本发明，在传送到客户端设备之前，分析流以便通过去除和替换编码原始流的特定信息段并且具有与所述原始流相同的格式来生成（i）修改的主流 ，和（ii）具有任何格式的补充信息片段，其包括对原始流进行编码的数字信息，并可用于重建上述修改的帧。 然后将经修改的主流和由此产生的补充信息从服务器分离地发送到目的地设备，随后根据修改的主流和目标设备的目的地设备来计算具有标称格式的流的合成，并且 补充信息。 本发明还涉及一种包括至少一个包含原始视频序列的多媒体服务器的系统，视频流分析设备，用于根据上述分析将原始视频流分离成修改主流和补充信息的设备，以及 目的地设备上的至少一个设备，用于根据修改的主流和补充信息来重建视频流。