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公开(公告)号：US08213674B2
公开(公告)日：2012-07-03
申请号：US12912471
申请日：2010-10-26
CPC分类号： G06T1/0028 , G06T2201/0051 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32187 , H04N1/32192
摘要： The present disclosure relates generally to embedding auxiliary data and data hiding. One claim recites a method including: receiving data representing a media signal; using a programmed electronic processor, calculating perceptibility characteristics of the media signal, in which the perceptibility characteristics include contrast; using a programmed electronic processor, calculating a non-linear contrast to gain mapping using the perceptibility characteristics; using a programmed electronic processor, embedding an auxiliary signal in the media signal with reference to the non-linear contrast to gain mapping. Other claims and combinations are also provided.
摘要翻译： 本公开一般涉及嵌入辅助数据和数据隐藏。 一个权利要求描述了一种方法，包括：接收表示媒体信号的数据; 使用编程的电子处理器，计算媒体信号的感知特性，其中感知特性包括对比度; 使用编程的电子处理器，计算非线性对比度以使用感知特性来增益映射; 使用编程的电子处理器，参考非线性对比度将增益映射参考在媒体信号中嵌入辅助信号。 还提供了其他权利要求和组合。
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2.发明授权Watermarking using multiple watermarks and keys, including keys dependent on the host signal 有权使用多个水印和键的水印，包括依赖主机信号的键公开(公告)号：US08131007B2
公开(公告)日：2012-03-06
申请号：US11929137
申请日：2007-10-30
申请人： Ahmed Tewfik , Bin Zhu , Mitch Swanson
发明人： Ahmed Tewfik , Bin Zhu , Mitch Swanson
IPC分类号： H04K1/00
CPC分类号： G06T1/0071 , G06T2201/0081 , G06T2201/0083 , G10L19/018 , H04N1/32144 , H04N1/32165 , H04N1/3217 , H04N1/32192 , H04N1/32304 , H04N5/782 , H04N5/913 , H04N9/804 , H04N19/467 , H04N21/23892 , H04N21/8358 , H04N2005/91335 , H04N2201/3233 , H04N2201/3236 , H04N2201/3239 , H04N2201/327
摘要： A method of embedding a watermarking in a host signal computes a first watermark depending on a particular party and computes a second watermark depending on the host signal. The method embeds the first and second watermarks in the host signal. At least one of the watermarks is embedded using a key derived from the host signal. In particular, one of the watermarks is embedded with a key derived from the host signal.
摘要翻译： 在主机信号中嵌入水印的方法根据特定方式计算第一水印，并根据主机信号计算第二水印。 该方法将第一和第二水印嵌入主机信号。 使用从主机信号导出的密钥来嵌入至少一个水印。 特别地，其中一个水印嵌入了从主机信号导出的密钥。
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公开(公告)号：US07779271B2
公开(公告)日：2010-08-17
申请号：US10495952
申请日：2002-10-24
IPC分类号： H04L9/32
CPC分类号： G06T1/0028 , G06T2201/0051 , G06T2201/0052 , G06T2201/0064 , G06T2201/0202 , G11B20/00007 , G11B20/00086 , G11B20/00884 , H04N1/32128 , H04N1/32165 , H04N1/32192 , H04N5/913 , H04N19/467 , H04N21/8358 , H04N2005/91335 , H04N2201/3233 , H04N2201/3242
摘要： Advanced watermark embedders use psycho visual/acoustic models to minimize perception of the embedded watermark in media contents. However, it is expensive to implement such advanced watermark embedders in consumer appliances (3) such as DVD recorders. In accordance with the invention, embedding strength parameters (JND) are calculated (13) off-line at a remote location (1) and transmitted along with the media contents to the consumer appliance (3). A relatively simple embedder (33) uses the received parameters to control the strength of the watermark (36) to be embedded. The parameters may be accommodated in the transmitted signal as payload of a fragile watermark or as user data in an encrypted MPEG stream.
摘要翻译： 高级水印嵌入器使用心理视觉/声学模型来最小化媒体内容中嵌入水印的感知。 然而，在诸如DVD刻录机的消费电器（3）中实现这种高级水印嵌入是很昂贵的。 根据本发明，在远程位置（1）离线计算嵌入强度参数（JND）（13），并将其与媒体内容一起传送到消费电器（3）。 相对简单的嵌入器（33）使用所接收的参数来控制要嵌入的水印（36）的强度。 这些参数可以被容纳在所发送的信号中作为脆弱水印的有效载荷或作为加密的MPEG流中的用户数据。
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公开(公告)号：US07487356B2
公开(公告)日：2009-02-03
申请号：US10358227
申请日：2003-02-05
申请人： Akiomi Kunisa
发明人： Akiomi Kunisa
CPC分类号： H04N19/467 , G06T1/0028 , G06T1/005 , G06T2201/0065 , G06T2201/0202 , H04N1/32149 , H04N1/32165 , H04N1/3232 , H04N7/1675 , H04N21/835 , H04N21/8358 , H04N2201/324 , H04N2201/3281
摘要： An encoding apparatus that embeds a watermark in host data is provided. A multiplexer generates a plurality of bit sequences by adding initial data to the head of the watermark. A scrambler scrambles a plurality of the bit sequences respectively and generates a plurality of scrambled watermarks. An embedder embeds a plurality of the scrambled watermarks in the host data and generates a plurality of candidate watermarked host data. A signal-to-noise ratio calculator evaluates the robustness of the watermarks hidden in the respective candidate watermarked host data. A selector selects one candidate that has the highest level of the robustness as a final watermarked host data.
摘要翻译： 提供了一种在主机数据中嵌入水印的编码装置。 复用器通过将初始数据添加到水印的头部来产生多个比特序列。 扰频器分别对多个比特序列进行加扰，并产生多个加扰水印。 嵌入器将多个加扰水印嵌入主机数据中，并生成多个候选水印主机数据。 信噪比计算器评估隐藏在相应候选水印主机数据中的水印的鲁棒性。 选择器选择具有最高级别的鲁棒性的一个候选作为最终水印的主机数据。
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公开(公告)号：US07483547B2
公开(公告)日：2009-01-27
申请号：US11498528
申请日：2006-08-02
CPC分类号： G06T1/0028 , G06T2201/0051 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32187 , H04N1/32192
摘要： The present invention relates generally to steganography and data hiding. In one embodiment a method is provided including obtaining a media signal; determining characteristics of the media signal; based at least in part on the characteristics of the media signal, providing a map of the media signal; transforming at least some portions of the media signal into a transform domain; and hiding plural-bit data in at least some portions of the transformed media signal. The map identifies at least one area in the media signal in which hiding of plural-bit data should be avoided or suppressed. At least one of the act of transforming or the act of hiding utilizes the map of the media signal. Other embodiments are also provided.
摘要翻译： 本发明一般涉及隐写术和数据隐藏。 在一个实施例中，提供了一种方法，包括获得媒体信号; 确定媒体信号的特性; 至少部分地基于媒体信号的特性，提供媒体信号的映射; 将所述媒体信号的至少一些部分转换成变换域; 以及在变换的媒体信号的至少一些部分中隐藏多位数据。 该映射标识了应该避免或抑制多位数据隐藏的媒体信号中的至少一个区域。 至少一种转换行为或隐藏行为利用媒体信号的映射。 还提供了其他实施例。
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公开(公告)号：US20080199040A1
公开(公告)日：2008-08-21
申请号：US11676691
申请日：2007-02-20
CPC分类号： H04N1/32149 , H04N1/00307 , H04N1/32165 , H04N1/32213 , H04N1/32315 , H04N2201/0084 , H04N2201/3205 , H04N2201/3233 , H04N2201/3263 , H04N2201/3269 , H04N2201/327
摘要： A device may capture an image in a portable device, embed a watermark into the image in the portable device, and transmit the watermarked image through a wireless interface of the portable device.
摘要翻译： 设备可以捕获便携式设备中的图像，将水印嵌入到便携式设备中的图像中，并通过便携式设备的无线接口发送带水印的图像。
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公开(公告)号：US20080065896A1
公开(公告)日：2008-03-13
申请号：US11940017
申请日：2007-11-14
申请人： Andrew Johnson , Michael Biggar
发明人： Andrew Johnson , Michael Biggar
IPC分类号： H04L9/00
CPC分类号： G06T1/0021 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0083 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/32176 , H04N1/32187 , H04N19/00 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
摘要： A digital watermark is added to audio or visual content. An illustrative embodiment segments the content, permutes the segments, and transforms such data into another domain. The transformed data is altered slightly to encode a watermark. The altered data can then be inverse-transformed, and inverse-permuted, to return same to substantially its original form. Related watermark decoding methods are also detailed, as are ancillary features and techniques
摘要翻译： 数字水印被添加到音频或视觉内容。 说明性实施例分割内容，排列片段，并将这些数据转换成另一个域。 变换的数据被稍微改变以对水印进行编码。 然后可以将改变的数据进行逆变换，并进行反向置换，以使其基本上恢复原始形式。 相关的水印解码方法也是详细的，以及辅助特征和技术
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公开(公告)号：US07280669B2
公开(公告)日：2007-10-09
申请号：US10380389
申请日：2001-09-10
申请人： Jong-Uk Choi , Jung-Su Lee
发明人： Jong-Uk Choi , Jung-Su Lee
CPC分类号： H04N19/467 , G06T1/005 , G06T2201/0052 , G06T2201/0083 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32309 , H04N2201/3236 , H04N2201/327
摘要： The present invention relates to a digital image watermarking apparatus and method. Luminance component of a digital image are transformed into coefficients of a frequency domain, and watermark is generated by encrypting a user key and generating pseudo random number from encrypted user key. Then, a replacement coefficient generated from a coefficient of a first frequency area and the watermark is replaced with a coefficient of a second frequency area so that the watermark is embedded into the digital image. The embedded watermark is extracted at an authenticating apparatus and the digital image is authenticated by finding the correlation between the extracted watermark and watermark for authentication.
摘要翻译： 本发明涉及数字图像水印设备和方法。 将数字图像的亮度分量变换为频域的系数，并且通过加密用户密钥并从加密的用户密钥生成伪随机数来生成水印。 然后，由第一频率区域的系数和水印产生的替换系数被第二频率区域的系数代替，使得水印被嵌入到数字图像中。 在认证装置中提取嵌入的水印，并且通过找出所提取的水印和水印之间的相关性进行认证来认证数字图像。
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公开(公告)号：US07269734B1
公开(公告)日：2007-09-11
申请号：US09367797
申请日：1998-02-20
申请人： Andrew Johnson , Michael Biggar
发明人： Andrew Johnson , Michael Biggar
IPC分类号： H04L9/00
CPC分类号： G06T1/0021 , G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0083 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/32176 , H04N1/32187 , H04N19/00 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
摘要： A digital watermark is added to audio or visual content. An illustrative embodiment segments the content, permutes the segments, and transforms such data into another domain. The transformed data is altered slightly to encode a watermark. The altered data can then be inverse-transformed, and inverse-permuted, to return same to substantially its original form. Related watermark decoding methods are also detailed, as are ancillary features and techniques.
摘要翻译： 数字水印被添加到音频或视觉内容。 说明性实施例分割内容，排列片段，并将这些数据转换成另一个域。 变换的数据被稍微改变以对水印进行编码。 然后可以将改变的数据进行逆变换，并进行反向置换，以使其基本上恢复原始形式。 相关的水印解码方法也是详细的，以及辅助特征和技术。
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公开(公告)号：US07263615B2
公开(公告)日：2007-08-28
申请号：US10317973
申请日：2002-12-12
CPC分类号： H04N1/32154 , H04N1/32165
摘要： A detecting data processing apparatus configured to identify at least one of a plurality of code words present in a marked version of a material item. The detecting apparatus including a registration processor operable to compare the samples of the marked material item with a copy of the original material item samples. If a sample of the marked material item and the original material item differ by a comparison threshold, the registration processor replaces the compared sample of the marked material item with the corresponding sample from the original material item.
摘要翻译： 一种检测数据处理装置，被配置为识别存在于材料项目的标记版本中的多个代码字中的至少一个。 该检测装置包括一个登记处理器，可操作以将标记的物料项目的样本与原材料项目样本的副本进行比较。 如果标记材料项目和原始材料项目的样本与比较阈值不同，则注册处理器将标记材料项目的比较样本与来自原始材料项目的相应样品替换。
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