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公开(公告)号：US20070168673A1
公开(公告)日：2007-07-19
申请号：US10596928
申请日：2005-01-12
IPC分类号： H04L9/00
CPC分类号： G11B20/00181 , G10L19/018 , G11B20/00086 , G11B20/00144 , G11B20/00289 , G11B20/00557 , G11B20/00884
摘要： A method of dynamically allocating payload bits in a watermarking system (10) is provided. The method including steps of: (a) determining one or more parameters to be conveyed in bits of a payload to be included in watermark information for embedding in programme content; (b) dynamically allocating the bits to corresponding of the one or more parameters so as to represent the one or more parameters in the payload; (c) including the payload in the watermark information; and (d) embedding the watermark information including the payload into the programme content. Such dynamic allocation of payload bits is capable of providing more effective use of payload capacity.
摘要翻译： 提供了一种在水印系统（10）中动态分配有效负载比特的方法。 该方法包括以下步骤：（a）确定要包含在用于嵌入节目内容的水印信息中的有效载荷的比特中要传送的一个或多个参数; （b）将所述比特动态地分配给所述一个或多个参数的对应，以便表示所述有效载荷中的一个或多个参数; （c）在水印信息中包括有效载荷; 和（d）将包括有效载荷的水印信息嵌入到节目内容中。 有效载荷比特的这种动态分配能够提供更有效地使用有效负载能力。
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公开(公告)号：US20070064937A1
公开(公告)日：2007-03-22
申请号：US10580503
申请日：2004-11-23
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。
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公开(公告)号：US20070052560A1
公开(公告)日：2007-03-08
申请号：US10557681
申请日：2004-05-19
IPC分类号： H03M7/34
CPC分类号： G10L19/018 , G06T1/0035 , G06T2200/28 , G06T2201/0052 , G10L19/002 , G10L19/0204 , G10L19/167 , G11B20/00086 , G11B20/00891 , H04N5/913 , H04N9/8042 , H04N2005/91335
摘要： The present invention relates to methods, devices, a media signal and a recorded medium for watermarks embedded in the sub-band domain of compressed media. Watermarks (w[n]) are embedded into the sub-band signals (xi−1[n], xi[n], xi+1[n]) of at least one selected sub-band of a compressed bit-stream (bk) using a watermark inserting unit (18). In this way there is no need to fully decode and re-encode the media signal for embedding the watermark. The watermark is embedded in selected sub-bands (e.g. sub-bands 7-15 of 32). In a preferred embodiment, the selected sub-bands are upsampled before embedding and downsampled therafter to avoid aliasing. The invention also allows embedding multiple watermarks in different sub-bands (e.g. one watermark in sub-bands 7-11, and a different watermark in sub-bands 12-16).
摘要翻译： 本发明涉及嵌入在压缩介质的子带域中的水印的方法，装置，媒体信号和记录介质。 水印（w [n]）被嵌入到子带信号（x 1，...，n， 1）使用水印插入单元（18）对压缩比特流（b＆lt;＆gt; k＆gt;）的至少一个所选子带进行编码。 以这种方式，不需要完全解码和重新编码用于嵌入水印的媒体信号。 水印被嵌入在选定的子带中（例如32的子带7-15）。 在优选实施例中，所选择的子带在嵌入之前被上采样，并且在下采样以避免混叠。 本发明还允许将多个水印嵌入不同的子带（例如子带7-11中的一个水印，以及子带12-16中的不同水印）。
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34.发明申请Raising detectability of additonal data in a media signal having few frequency components 审中-公开提高具有较少频率成分的媒体信号中的附加数据的可检测性公开(公告)号：US20060168448A1
公开(公告)日：2006-07-27
申请号：US10560679
申请日：2004-06-15
CPC分类号： H04N1/32149 , G06T1/005 , G06T2201/0052 , G06T2201/0065 , G10L19/018 , H04N1/3216 , H04N1/32203 , H04N1/32352 , H04N7/08 , H04N2201/327
摘要： The present invention relates to a methods, devices, a media signal as well as an information storage medium related to embedding additional data in a media signal. A first adding unit (12) mixes the media signal (x) with a noise signal (n) in order to provide a modified media signal (x+n), and a combiner unit (14) combines additional data (w) with the modified media signal (x+n) through multiplying the modified media signal with the additional data in order to provide a host modifying media signal (mw). In this way the additional data can be detected with a higher certainty in an output signal (y) if the media signal (x) includes few frequency components.
摘要翻译： 本发明涉及一种方法，设备，媒体信号以及与在媒体信号中嵌入附加数据有关的信息存储介质。 第一加法单元（12）将媒体信号（x）与噪声信号（n）混合，以便提供修改的媒体信号（x + n），并且组合器单元（14）将附加数据（w）与 通过将修改的媒体信号与附加数据相乘来修改媒体信号（x + n），以提供主机修改媒体信号（m≠W）。 以这种方式，如果媒体信号（x）包括很少的频率分量，则在输出信号（y）中可以更高的确定性来检测附加数据。
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公开(公告)号：US20060161776A1
公开(公告)日：2006-07-20
申请号：US10564295
申请日：2004-07-02
IPC分类号： H04L9/00
CPC分类号： G11B20/00884 , G11B20/00086 , G11B20/00173
摘要： The present invention relates to methods, devices and a signal related to simplifying the embedding of watermarks in different copies of a media signal (x). The watermarking process is split into two parts, one that is based on signal dependent properties and one that is based on watermark specific properties. The signal dependent properties are determined in advance, while the watermark specific properties are determined at the time of delivery of the media signal. The signal dependent watermarking properties (p) of a media signal (x) are determined in a properties determining unit (14) and stored in a signal properties store (16), such that the signal dependent properties can be used for embedding more than one watermark (WA, WB, WC) in different copies of the media signal. In this way it is possible to embed watermarks in multiple copies of the same media signal with small time delays.
摘要翻译： 本发明涉及方法，设备和与简化在媒体信号（x）的不同副本中嵌入水印有关的信号。 水印过程被分为两部分，一个是基于信号相关属性，一个基于水印特定属性。 信号相关属性是预先确定的，而在传送媒体信号时确定水印特定属性。 媒体信号（x）的信号相关水印属性（p）在属性确定单元（14）中确定并存储在信号属性存储器（16）中，使得信号相关属性可用于嵌入多于一个 在媒体信号的不同副本中的水印（W SUB，W B，W C C）。 以这种方式，可以以小的时间延迟将水印嵌入相同媒体信号的多个副本中。
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公开(公告)号：US20060140440A1
公开(公告)日：2006-06-29
申请号：US10542139
申请日：2004-01-13
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。
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公开(公告)号：US20050177738A1
公开(公告)日：2005-08-11
申请号：US10513746
申请日：2003-04-15
CPC分类号： H04N21/8358 , H04N19/467
摘要： Fingerprinting is a technique to identify multimedia signals by extracting robust perceptual features of the signal contents and searching the extracted features in a database where titles, artists, etc. are stored. Watermarking is a technique of embedding payload data in a signal in an unobtrusive manner. The invention combines both techniques. A fingerprint (M(i)) is extracted (1) from a host signal (x) and stored in a database (5). A watermark (w(i)) is embedded (2) in the host signal by modifying (21) the signal, such that the fingerprint (M′(i)) of the modified signal (x′) differs slightly from the original fingerprint. The difference is so small that the database considers them to be similar. At the receiver end, the fingerprint is extracted (3) from the watermarked signal and applied to the database, which responds by returning the original fingerprint of the signal. The embedded watermark is retrieved by subtracting (4) the original fingerprint supplied by the database from the fingerprint extracted from the host signal.
摘要翻译： 指纹是通过提取信号内容的鲁棒感知特征并搜索存储标题，艺术家等的数据库中的提取特征来识别多媒体信号的技术。 水印技术是以不引人注意的方式将有效载荷数据嵌入到信号中。 本发明结合了两种技术。 从主机信号（x）提取指纹（M（i））（1）并存储在数据库（5）中。 通过修改（21）信号将修改信号（x'）的指纹（M'（i））与原始指纹略微不同，将水印（w（i））嵌入（2） 。 差异很小，数据库认为它们是相似的。 在接收端，从水印信号中提取指纹（3），并将其应用于数据库，通过返回信号的原始指纹进行响应。 通过从主机信号提取的指纹中减去（4）由数据库提供的原始指纹来检索嵌入水印。
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公开(公告)号：US08412950B2
公开(公告)日：2013-04-02
申请号：US12808579
申请日：2008-12-17
申请人： Thomas Andreas Maria Kevenaar , Bart Johan Hendrikus Bouwman , Joseph Gerard Hubert Strous , Minne Van Der Veen
发明人： Thomas Andreas Maria Kevenaar , Bart Johan Hendrikus Bouwman , Joseph Gerard Hubert Strous , Minne Van Der Veen
IPC分类号： H04L29/06
CPC分类号： G06K9/00885 , G06F21/32 , H04L9/3231 , H04L2209/08 , H04L2209/34
摘要： A method for configuring a biometric template protected authentication system wherein the desired classification threshold is first selected to optimize the trade-off between a false accept (FAR) and a false non match or reject rate (FRR) of the system, and then an error correcting code (ECC) used in the authentication process is chosen such that the number of errors which can be corrected is equal to or greater than the selected classification threshold. During authentication, the number of errors in a first codeword derived from biometric data associated with a physical object is determined and used in the decision process to accept or reject authentication.
摘要翻译： 一种用于配置生物特征模板保护认证系统的方法，其中首先选择期望的分类阈值以优化系统的错误接受（FAR）和错误不匹配或拒绝率（FRR）之间的折衷，然后是错误 选择在认证处理中使用的校正码（ECC），使得可以校正的错误的数量等于或大于所选择的分类阈值。 在认证期间，在与物理对象相关联的生物特征数据中导出的第一码字中的错误数量被确定并在决策过程中用于接受或拒绝认证。
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公开(公告)号：US08122260B2
公开(公告)日：2012-02-21
申请号：US11916094
申请日：2006-05-23
申请人： Minne Van Der Veen , Thomas Andreas Maria Kevenaar , Alphons Antonius Maria Lambertus Bruekers , Antonius Hermanus Maria Akkermans , Franciscus Maria Joannes Willems
发明人： Minne Van Der Veen , Thomas Andreas Maria Kevenaar , Alphons Antonius Maria Lambertus Bruekers , Antonius Hermanus Maria Akkermans , Franciscus Maria Joannes Willems
IPC分类号： G06F21/00
CPC分类号： G06F21/32 , G06F21/31 , G06F21/6245 , G07C9/00158
摘要： The invention relates to a method of authentication of a physical object and an apparatus applying said method. The method uses a helper data (W1) and a control value (V1) associated with a reference object to generate a first property set (C1) using the helper data (W1) and a metric (Y) associated with the physical object. It further comprises a step to generate a second property set (S1) using a noise compensating mapping (NCM) on the first property set (C1), as well as a step to establish a sufficient match between the physical object and the reference object using the second property set (S1) and the first control value (V1). The method is characterized by a step that generates an error measure (ERR) by quantifying the noise removed by the noise compensating mapping (NCM) using the first property set (C1) and information derived from the noise compensating mapping (NCM). Error measure (ERR) is subsequently used for generating an authentication decision (D). Also provided is an apparatus configured to carry out the method.
摘要翻译： 本发明涉及物理对象的认证方法和应用所述方法的装置。 该方法使用与参考对象相关联的辅助数据（W1）和控制值（V1），以使用辅助数据（W1）和与物理对象相关联的度量（Y）来生成第一属性集合（C1）。 它还包括使用第一属性集（C1）上的噪声补偿映射（NCM）生成第二属性集（S1）的步骤，以及使用以下方式建立物理对象和参考对象之间的充分匹配的步骤： 第二属性集（S1）和第一控制值（V1）。 该方法的特征在于通过使用第一属性集（C1）和从噪声补偿映射（NCM）导出的信息量化噪声补偿映射（NCM）去除的噪声来产生误差测量（ERR）的步骤。 误差测量（ERR）随后用于产生认证决定（D）。 还提供了一种被配置为执行该方法的装置。
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公开(公告)号：US07486198B2
公开(公告)日：2009-02-03
申请号：US10500766
申请日：2002-12-09
CPC分类号： H04Q9/00
摘要： System for performing telemetric measurements, comprising a plurality of mobile communication devices (100), each communication device (100) being provided with at least one sensor (110) and a sensor control section (120) for performing measurements, a cellular communication network structure for the mobile communication devices, a server provided with communication means for receiving measurement data from the plurality of mobile communication devices (100), and for sending measurement instructions to respective sensor control sections (120) of the mobile communication devices (100) wherein the sensor control sections (120) are programmable by the server.
摘要翻译： 用于执行遥测测量的系统包括多个移动通信设备（100），每个通信设备（100）设置有至少一个传感器（110）和用于执行测量的传感器控制部分（120），蜂窝通信网络结构 对于移动通信设备，提供有用于从多个移动通信设备（100）接收测量数据并且将测量指令发送到移动通信设备（100）的各个传感器控制部分（120）的通信装置的服务器，其中， 传感器控制部分（120）可由服务器编程。
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