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1. 发明申请

US20060140440A1 Reversible watermarking of digital signals 审中-公开
标题翻译：数字信号的可逆水印
公开(公告)号：US20060140440A1
公开(公告)日：2006-06-29
申请号：US10542139
申请日：2004-01-13
申请人： Minne Van Der Veen , Alphons Antonius Bruekers , Adriaan Van Leest , Stephane Cavin
发明人： Minne Van Der Veen , Alphons Antonius Bruekers , Adriaan Van Leest , Stephane Cavin
IPC分类号： G06K9/00
CPC分类号： H04N19/467 , G10L19/018 , G11B20/00086
摘要： The invention relates to methods, devices, a system of devices and a signal where additional information is embedded in media content. The system includes a device (10) providing additional information (O, D) in a signal (y) having media content, comprising a first mapping unit (14) mapping the amplitude values of the media content onto first new values, and a multiplexing unit (16) inserting the additional information into the mapped media content. The system also includes a device (12) for receiving additional information (O, D) in a signal (y) having media content, comprising a demultiplexing unit (22) arranged to receive a signal including media content (xQ) the amplitude values of which have been mapped onto first new values together with additional embedded information (O, D), and remove the additional information from the mapped media content. The invention allows insertion of watermarks into media content such as audio.
摘要翻译：本发明涉及方法，设备，设备系统以及其中附加信息被嵌入在媒体内容中的信号。该系统包括在具有媒体内容的信号（y）中提供附加信息（O，D）的设备（10），包括将媒体内容的幅度值映射到第一新值的第一映射单元（14）单元（16）将附加信息插入到映射的媒体内容中。该系统还包括用于在具有媒体内容的信号（y）中接收附加信息（O，D）的设备（12），包括解复用单元（22），其被布置为接收包括媒体内容（x < / SUB>），其幅度值与附加嵌入信息（O，D）一起映射到第一新值上，并从映射的媒体内容中移除附加信息。本发明允许将水印插入诸如音频的媒体内容中。

2. 发明申请

US20070165850A1 Embedding of signal dependent properties in a media signal 审中-公开
标题翻译：在媒体信号中嵌入信号相关属性
公开(公告)号：US20070165850A1
公开(公告)日：2007-07-19
申请号：US10596331
申请日：2004-12-01
申请人： Minne Van Der Veen , Aweke Lemma , Rene Barto , Adriaan Van Leest
发明人： Minne Van Der Veen , Aweke Lemma , Rene Barto , Adriaan Van Leest
IPC分类号： H04N7/167
CPC分类号： H04N19/467
摘要： The present invention relates to a method and device for simplifying distribution of a processed media signal and a method and device for distributing a media signal. A properties determining unit (12, 14) determines a set of signal dependent properties (w,a) of a media signal (x). An embedding unit (16) embeds the signal dependent properties in the media signal in order to provide a modified media signal (x′). An extracting unit (22) retrieves the modified media signal (x′) from a media signal storage (18) and extracts the signal dependent properties (w, a). A signal processing unit (24, 26) then processes the media signal using the signal dependent properties, such that the processed media signal can be provided for distribution to at least one recipient. In this way storage space is saved and the complexity of an electronic content delivery system is reduced.
摘要翻译：本发明涉及一种用于简化已处理媒体信号的分布的方法和装置以及用于分发媒体信号的方法和装置。属性确定单元（12,14）确定媒体信号（x）的一组信号相关属性（w，a）。嵌入单元（16）将信号相关属性嵌入媒体信号中，以便提供修改的媒体信号（x'）。提取单元（22）从媒体信号存储器（18）检索修改的媒体信号（x'），并提取信号相关属性（w，a）。然后，信号处理单元（24,26）使用信号相关属性来处理媒体信号，使得处理的媒体信号可以被提供用于分配给至少一个接收者。以这种方式节省存储空间，减少电子内容传送系统的复杂性。

3. 发明申请

US20070064937A1 Method and apparatus for encoding or decoding a bitstream 审中-公开
标题翻译：用于对比特流进行编码或解码的方法和装置
公开(公告)号：US20070064937A1
公开(公告)日：2007-03-22
申请号：US10580503
申请日：2004-11-23
申请人： Adriaan Van Leest , Minne Van Der Veen , Alphons Antonius Maria Bruekers
发明人： Adriaan Van Leest , Minne Van Der Veen , Alphons Antonius Maria Bruekers
IPC分类号： H04N7/167
CPC分类号： H04N19/59 , H04N19/13 , H04N19/132 , H04N19/14 , H04N19/176 , H04N19/18 , H04N19/40 , H04N19/467 , H04N19/48 , H04N19/93
摘要： The invention relates to a system for re-encoding bitstreams for content signals. A re-encoder (101) receives a bit-stream comprising e.g. an MPEG-2 encoded signal. The receiver (109) feeds the bitstream to an extraction processor (111) which extracts non-essential information from the bitstream thereby generating a reduced bitstream which is still MPEG-2 compliant. The non-essential information, which specifically may be higher frequency transform coefficients, is re-encoded in a re-encode processor (113) using a non-MPEG-2 encoding principle. The encoding may be optimised for the characteristics of the non-essential information resulting in a more efficient encoding. The re-encoded data is inserted in user data section of the reduced bit stream by a combine processor (115). Thus, an effective reduction in the size of the bitstream may be achieved. A decoder (107) may extract the re-encoded data from the user data section, regenerate the original non-essential information and insert this in the reduced bitstream. Specifically, the original bitstream may be regenerated. The approach may specifically be used for reversible bitstream watermarking that which does not increase the size of the bitstream.
摘要翻译：本发明涉及一种用于重新编码内容信号的比特流的系统。一个重新编码器（101）接收一个比特流，包括例如 MPEG-2编码信号。接收器（109）将比特流馈送到提取处理器（111），其从比特流中提取非必要信息，从而生成仍然符合MPEG-2标准的缩减比特流。可以使用非MPEG-2编码原理，在重新编码处理器（113）中重新编码非特定信息，具体可以是更高的频率变换系数。可以针对非必要信息的特性优化编码，从而产生更有效的编码。重新编码的数据通过组合处理器（115）插入到缩减比特流的用户数据部分中。因此，可以实现比特流的大小的有效减小。解码器（107）可以从用户数据部分提取重新编码的数据，再生原始非必要信息并将其插入到缩减比特流中。具体地说，可以再生原始比特流。该方法可以具体用于不增加比特流大小的可逆比特流水印。

4. 发明申请

US20070211897A1 METHOD OF DETECTING WATERMARKS 审中-公开
标题翻译：检测水印的方法
公开(公告)号：US20070211897A1
公开(公告)日：2007-09-13
申请号：US11568706
申请日：2005-05-04
申请人： Adriaan Van Leest , Gerrit Langelaar
发明人： Adriaan Van Leest , Gerrit Langelaar
IPC分类号： G09C5/00
CPC分类号： G06T1/0085 , G06T2201/0051
摘要： There is described a method of determining a measure of scale factor (MSF) by detecting a watermark included in a sequence (10) of images (20). The watermark is included in several mutually changed forms in the sequence (10). In a first step, the method involves receiving the sequence (10) of images (20). In a second step, the images (2) are sorted substantially into a plurality of corresponding groups depending upon one or more relative changes applied to their included watermarks. In a third step, the method involves accumulating for each group at least a portion of one or more images thereof into corresponding buffers. In a fourth step, the method involves mutually analyzing contents of the buffers (130, 180) to determine one or more changes applied to the watermark included in the sequence (10). In a fifth step, information concerning the one or more changes is processed in relation to an expected scale factor to determine said measure of scale factor (MSF).
摘要翻译：描述了通过检测包括在图像（20）的序列（10）中的水印来确定比例因子（MSF）的度量的方法。水印被包含在序列（10）中的几个相互改变的形式中。在第一步骤中，该方法包括接收图像（20）的序列（10）。在第二步骤中，根据应用于它们所包含的水印的一个或多个相对变化，图像（2）基本上被分类为多个对应的组。在第三步骤中，该方法包括将每个组的至少一部分一个或多个图像累加到相应的缓冲器中。在第四步骤中，该方法涉及相互分析缓冲器（130,180）的内容，以确定应用于序列（10）中包括的水印的一个或多个改变。在第五步中，关于一个或多个变化的信息相对于预期比例因子进行处理以确定所述比例因子（MSF）的量度。

5. 发明申请

US20070223693A1 Compensating Watermark Irregularities Caused By Moved Objects 审中-公开
标题翻译：补偿移动对象引起的水印不规则问题
公开(公告)号：US20070223693A1
公开(公告)日：2007-09-27
申请号：US11569976
申请日：2005-05-31
申请人： Adriaan Van Leest
发明人： Adriaan Van Leest
IPC分类号： H04N7/26
CPC分类号： H04N19/137 , H04N19/467 , H04N19/48
摘要： The present invention relates to a method, device and computer program product for determining additional data to be embedded in a media signal as well as a media signal processing device having such a device for determining additional data. The device for determining additional data comprises an embedding unit (28). The embedding unit has a motion compensating unit (32), which obtains, from a media signal (X) divided into frames having blocks of a number of signal sample values, at least one motion vector (V) of a current frame that is associated with a first block of signal samples and retrieves additional data (WP0) embedded in a previous frame of the signal in dependence of the motion vector. The embedding unit also has a correcting unit (36), which determines coefficients of the retrieved additional data based on additional reference data (WR) as well as a data embedding unit (38) that embeds the corrected additional data into the first block.
摘要翻译：本发明涉及用于确定要嵌入在媒体信号中的附加数据的方法，装置和计算机程序产品以及具有用于确定附加数据的装置的媒体信号处理装置。用于确定附加数据的装置包括嵌入单元（28）。嵌入单元具有运动补偿单元（32），其从被划分为具有多个信号采样值的块的帧的媒体信号（X）获得与当前帧相关联的至少一个运动矢量（V）具有信号样本的第一块并且根据运动矢量检索嵌入在信号的先前帧中的附加数据（W P0 P N）。嵌入单元还具有校正单元（36），该校正单元（36）基于附加参考数据（W SUB）来确定检索到的附加数据的系数，以及嵌入校正后的数据嵌入单元（38）附加数据进入第一个块。

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