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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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52.发明申请Managing Models Representing Different Expected Distortions Associated with a Plurality of Data Captures 审中-公开管理代表与多种数据捕获相关的不同预期变形的模型公开(公告)号：US20120099759A1
公开(公告)日：2012-04-26
申请号：US13278548
申请日：2011-10-21
申请人： Alastair M. Reed
发明人： Alastair M. Reed
IPC分类号： G06K9/00
CPC分类号： G06T1/0064 , G06T5/002 , G06T5/003 , G06T5/006
摘要： The present disclosure relates generally to managing models representing different expected distortions associated with a plurality of data captures. One claim recites a method comprising: obtaining a plurality of models each representing a different expected distortion associated with a plurality of data captures, the plurality of data captures each resulting in distortion of a machine-readable signal; indexing the plurality of models; upon receiving a request, selecting a model associated with the request; and providing the selected model. Of course, other methods and combinations are provided as well.
摘要翻译： 本公开一般涉及管理表示与多个数据捕获相关联的不同预期失真的模型。 一个权利要求描述了一种方法，包括：获得多个模型，每个模型表示与多个数据捕获相关联的不同的预期失真，所述多个数据捕获导致机器可读信号的失真; 索引多个模型; 在接收到请求时，选择与请求相关联的模型; 并提供所选模型。 当然，也提供其他方法和组合。
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公开(公告)号：US20110180603A1
公开(公告)日：2011-07-28
申请号：US12844651
申请日：2010-07-27
申请人： Robert L. Jones , Alastair M. Reed
发明人： Robert L. Jones , Alastair M. Reed
CPC分类号： B42D25/378 , B41M3/144 , B42D25/00 , B42D25/23 , B42D25/382 , B42D25/387 , B42D25/41 , G07D7/0043 , G07D7/12 , G07D7/1205 , G07D7/206 , G07F7/08 , G07F7/125
摘要： The present disclosure provides apparatus for analyzing emerging security or authentication feature for physical objects (e.g., identification documents, product packaging, banknotes, etc.). One claim recites an apparatus comprising: a light source for illuminating a physical object with first non-visible light, the physical object comprising a first code provided with a first ink or dye and a second code provided with a second ink or dye, the second ink or dye comprising an emission decay time that is relatively longer than an emission decay time of the first ink or dye, the first code and the second code collectively conveying a first feature when illuminated with the first non-visible light, with the second code individually conveying a second feature after emissions attributable to the first code fall to a first level; and an electronic reader programmed for reading at least the second feature after emissions attributable to the first ink or dye fall to the first level and before emissions attributable to the second ink or dye fall to a second level. Other claims and combinations are provided as well.
摘要翻译： 本公开提供了用于分析物理对象（例如，识别文档，产品包装，纸币等）的新出现的安全性或认证特征的装置。 一个权利要求描述了一种装置，包括：用于用第一不可见光照射物体的光源，物理物体包括设置有第一墨或染料的第一代码和设置有第二墨或染料的第二代码，第二 包括相对长于第一墨水或染料的发射衰减时间的发射衰减时间的第一代码和第二代码，其中第一代码和第二代码在用第一不可见光照亮时一起传送第一特征，第二代码 在归因于第一代码的排放物之后单独地传送第二特征落在第一水平; 以及编程用于在归因于第一墨水或染料的排放物排放到第一水平之后以及归因于第二墨水或染料的排放物落入第二水平之前至少读取第二特征的电子阅读器。 还提供了其他权利要求和组合。
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公开(公告)号：US20100310117A1
公开(公告)日：2010-12-09
申请号：US12755145
申请日：2010-04-06
IPC分类号： G06K9/00
CPC分类号： G06K9/00 , G06T1/0021 , G06T1/0028 , G06T1/0064 , G06T2201/0051 , G06T2201/0052 , H04H20/31 , H04N1/32154 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N1/32288 , H04N1/32293 , H04N1/32309 , H04N1/32352 , H04N7/163 , H04N19/467 , H04N19/645 , H04N21/23892 , H04N21/44008 , H04N21/4627 , H04N21/8358 , H04N2201/3233 , H04N2201/327 , H04N2201/3284
摘要： The present invention relates generally to color image processing. One claim recites a method comprising: determining a plurality of color attributes associated with video or imagery; determining which samples representing the video or imagery should receive digital watermarking based on the plurality of color attributes; transforming at least some of the samples into a transform domain; and utilizing a programmed electronic processor, modifying transform domain coefficients representing the samples to hide the digital watermarking therein. Of course other claims and combinations are provided as well.
摘要翻译： 本发明一般涉及彩色图像处理。 一个权利要求描述了一种方法，包括：确定与视频或图像相关联的多个颜色属性; 确定表示视频或图像的哪些样本应该基于多个颜色属性接收数字水印; 将至少一些样本转换成变换域; 并利用编程的电子处理器，修改表示样本的变换域系数以隐藏其中的数字水印。 当然，也提供其他权利要求和组合。
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公开(公告)号：US20100150396A1
公开(公告)日：2010-06-17
申请号：US12634505
申请日：2009-12-09
申请人： Alastair M. Reed
发明人： Alastair M. Reed
IPC分类号： G06K9/00
CPC分类号： G06T1/005 , G06T1/0021 , G06T7/90 , G06T2201/0052 , G06T2201/0065 , G06T2207/10024 , G06T2207/20224 , H04B1/3833 , H04N9/68
摘要： The present invention relate generally to digital watermarking. One claim recites an apparatus comprising: electronic memory for buffering a color video signal comprising a first frame and a second frame; and one or more electronic processors programmed for: transforming a first color channel and a second color channel of the first frame by hiding a digital watermark in the first color channel such that the first digital watermark includes a first signal polarity, and hiding the digital watermark in the second color channel such that the digital watermark includes a second signal polarity that is inversely related to the first signal polarity; transforming a first color channel and a second color channel of the second frame by hiding a digital watermark in the first color channel such that the first digital watermark includes the second signal polarity, and hiding the digital watermark in the second color channel such that the digital watermark includes the first signal polarity. Of course, different combinations and claims are provided too.
摘要翻译： 本发明一般涉及数字水印。 一个权利要求描述了一种装置，包括：用于缓冲包括第一帧和第二帧的彩色视频信号的电子存储器; 以及一个或多个电子处理器，其被编程为：通过在第一颜色通道中隐藏数字水印来变换第一帧的第一颜色通道和第二颜色通道，使得第一数字水印包括第一信号极性，并隐藏数字水印 在第二颜色通道中使得数字水印包括与第一信号极性成反比的第二信号极性; 通过在第一颜色通道中隐藏数字水印来变换第二帧的第一颜色通道和第二颜色通道，使得第一数字水印包括第二信号极性，并将数字水印隐藏在第二颜色通道中，使得数字 水印包括第一信号极性。 当然，也提供不同的组合和权利要求。
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公开(公告)号：US20090087018A1
公开(公告)日：2009-04-02
申请号：US12057745
申请日：2008-03-28
申请人： Alastair M. Reed , Eliot Rogers
发明人： Alastair M. Reed , Eliot Rogers
IPC分类号： G06K9/00
CPC分类号： G06T1/0028 , G06T2201/0051 , G06T2201/0202 , H04N1/32149 , H04N1/32192 , H04N1/32229 , H04N1/32309 , H04N1/3232
摘要： This document relates generally to digital watermarking. One claim recites a method including: obtaining data representing visual media; determining a model through iteratively embedding a digital watermark signal in the data; and embedding the digital watermark signal in the data according to the model. The model maximizes robustness of the digital watermark signal while minimizing perceptibility of the digital watermark signal when the signal is embedded in the data. A new embedding form or embedding mask is created after each embedding iteration. Of course, other combinations are described and claimed as well.
摘要翻译： 本文件一般涉及数字水印。 一个声明提出了一种方法，包括：获取表示视觉媒体的数据; 通过在数据中迭代地嵌入数字水印信号来确定模型; 并根据模型将数字水印信号嵌入到数据中。 该模型使数字水印信号的鲁棒性最大化，同时使信号嵌入数据时最小化数字水印信号的感知能力。 每次嵌入迭代后都会创建一个新的嵌入表单或嵌入掩码。 当然，也描述和要求保护其他组合。
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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：US07427030B2
公开(公告)日：2008-09-23
申请号：US11745909
申请日：2007-05-08
申请人： Robert L. Jones , Alastair M. Reed
发明人： Robert L. Jones , Alastair M. Reed
IPC分类号： G06K19/06
CPC分类号： B42D25/378 , B41M3/144 , B42D25/00 , B42D25/23 , B42D25/382 , B42D25/387 , B42D25/41 , G07D7/0043 , G07D7/12 , G07D7/1205 , G07D7/206 , G07F7/08 , G07F7/125
摘要： The present invention provides an emerging security or authentication feature for objects (e.g., identification documents, product packaging, banknotes, etc.). One method recites: exciting an object with a first non-visible light, the object comprising first indicia provided with a first ink or dye and second indicia provided with a second ink or dye, the second ink or dye comprising an emission decay time that is relatively longer than an emission decay time of the first ink or dye, the first indicia and the second indicia collectively conveying a first machine readable feature when illuminated with the first non-visible light, with the second indicia individually conveying a second machine readable feature after emissions attributable to the first indicia fall to a first level; and machine detecting at least the second machine readable feature after emissions attributable to the first ink or dye fall to the first level and before emissions attributable to the second ink or dye fall to a second level. Other combinations are provided as well.
摘要翻译： 本发明提供了用于对象（例如，识别文档，产品包装，纸币等）的新兴安全或认证特征。 一种方法叙述：用第一不可见光激发物体，所述物体包括提供有第一油墨或染料的第一标记和具有第二油墨或染料的第二标记，所述第二油墨或染料包含发射衰减时间， 相对长于第一墨水或染料的发射衰减时间，当用第一不可见光照亮时，第一标记和第二标记共同地传送第一机器可读特征，第二标记在第二标记之后单独地传送第二机器可读特征 第一个标记的排放量下降到一级; 以及在归因于所述第一墨水或染料的排放物排放到所述第一水平之后并且在归因于所述第二墨水或染料的排放物落入第二水平之前，至少机器检测所述第二机器可读特征。 还提供其他组合。
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59.发明授权Perceptual modeling of media signals based on local contrast and directional edges 有权基于局部对比度和方向边缘的媒体信号感知建模公开(公告)号：US07088844B2
公开(公告)日：2006-08-08
申请号：US10684213
申请日：2003-10-10
IPC分类号： G06K9/00
CPC分类号： G06T1/0028 , G06T2201/0051 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32187 , H04N1/32192
摘要： A perceptual model performs an analysis of a media signal, such as an image or audio signal. The model may be used in media signal processing applications such as digital watermarking and data compression to reduce perceptibility of changes made to code the signal. In one implementation, a method of reducing human perceptibility of visible artifacts attributable to embedding a digital watermark in a media signal is provided. The method determines a contrast measurement for local areas of the media signal; adjusts a contrast measurement for a local area if the contrast measurement is above a predetermined level; and embeds the digital watermark in the local areas in a manner determined at least in part by their respective contrast measurement.
摘要翻译： 感知模型执行诸如图像或音频信号之类的媒体信号的分析。 该模型可以用于诸如数字水印和数据压缩之类的媒体信号处理应用中，以减少对对信号进行编码的改变的可见性。 在一个实现中，提供了一种降低可归因于在媒体信号中嵌入数字水印的可见伪影的人感知性的方法。 该方法确定媒体信号的局部区域的对比度测量; 如果对比度测量高于预定水平，则调整局部区域的对比度测量; 并且以至少部分地通过它们各自的对比度测量确定的方式将数字水印嵌入在局部区域中。
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公开(公告)号：US07027614B2
公开(公告)日：2006-04-11
申请号：US10823514
申请日：2004-04-12
申请人： Alastair M. Reed
发明人： Alastair M. Reed
IPC分类号： G06K9/00
CPC分类号： G06T1/0042 , G06T1/0028 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N1/32293 , H04N1/32309 , H04N2201/327
摘要： The present invention relates to digital watermarking. In a preferred embodiment, a multi-channel media signal is embedded with first and second digital watermark components. The first component is embedded in a first of the channels and a second component is embedded in a second of the channels. The second component is registered with the first component so as to reduce visible attributes that are attributable to the first component.
摘要翻译： 本发明涉及数字水印技术。 在优选实施例中，多通道媒体信号被嵌入第一和第二数字水印分量。 第一组件被嵌入第一通道中，第二组件被嵌入在第二通道中。 第二组件被注册到第一组件，以便减少可归因于第一组件的可见属性。
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