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公开(公告)号：US08094869B2
公开(公告)日：2012-01-10
申请号：US10836094
申请日：2004-04-29
CPC分类号： G06T1/0042 , H04N1/00002 , H04N1/00005 , H04N1/00037
摘要： This disclosure describes methods for using embedded auxiliary signals in documents for copy detection. In one implementation we embed an auxiliary signal with a first color that is out of gamut with process color inks or with a particular range of printers. A process color approximation of the first color yields a relatively different contrast when, e.g., viewed with an interference filter. A copy is determined based on the relative presence or absence of the auxiliary signal. In another implementation, we provide a first auxiliary signal with a first color and a second auxiliary signal with a second color. A filter is matched according to the spectral response of the first color. The second color preferably includes a spectral response that is inversely related to the matched filter. The first signal is then detectable in a process color copy, but less so in the original. However, the second signal is detectable in the original, but less so in the copy. In still other implementations we compare relative contrast of a signal to determine an original from a copy.
摘要翻译： 本公开描述了在用于复制检测的文档中使用嵌入式辅助信号的方法。 在一个实现中，我们使用具有处理颜色墨水或特定范围的打印机的第一种颜色嵌入不同色域的辅助信号。 当例如用干涉滤光片观察时，第一种颜色的处理颜色近似产生相对不同的对比度。 基于辅助信号的相对存在或不存在来确定副本。 在另一实现中，我们提供具有第一颜色的第一辅助信号和具有第二颜色的第二辅助信号。 滤光片根据第一种颜色的光谱响应进行匹配。 第二种颜色优选地包括与匹配滤波器相反的光谱响应。 然后第一个信号可以在过程颜色拷贝中检测到，但在原始信号中不太可能。 然而，第二个信号在原件中是可检测的，但在副本中较少。 在其他实施方式中，我们比较信号的相对对比度以从副本确定原件。
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公开(公告)号：US08515120B2
公开(公告)日：2013-08-20
申请号：US12708278
申请日：2010-02-18
IPC分类号： G06K9/00
CPC分类号： G06T1/005 , G06T1/0021 , G06T11/001 , G06T2201/0083 , H04N1/32144 , H04N1/32267 , H04N1/32309 , H04N1/6005 , H04N1/6008 , H04N2201/3228 , H04N2201/3233 , H04N2201/327
摘要： This patent document relates generally to steganography and digital watermarking. One claim recites, in a watermark detector, a method of decoding auxiliary information encoded encoding in an image or video. The method includes: receiving data representing the image or video, wherein the data comprises first data corresponding to a first color channel, second data corresponding to a second color channel and third data corresponding to a third color channel; weighting the first data, the second data and the third data according to at least the following two factors: i) a color direction biased toward an anticipated embedding direction; and ii) anticipated image or video distortion introduced to the first data, second data or third data through scanning or signal processing; and determining from weighted first data, weighted second data and weighted third data, changes in an image or video attribute, in which the auxiliary information is conveyed through the changes to sample values representing the image or video. Of course, other claims and combinations are provided too.
摘要翻译： 该专利文献一般涉及隐写术和数字水印。 一个要素在水印检测器中叙述了在图像或视频中解码辅助信息编码编码的方法。 该方法包括：接收表示图像或视频的数据，其中数据包括对应于第一颜色通道的第一数据，对应于第二颜色通道的第二数据和对应于第三颜色通道的第三数据; 至少根据以下两个因素对第一数据，第二数据和第三数据进行加权：i）偏向预期嵌入方向的颜色方向; 和ii）通过扫描或信号处理引入到第一数据，第二数据或第三数据的预期图像或视频失真; 并且从加权的第一数据，加权的第二数据和加权的第三数据确定图像或视频属性中的变化，其中辅助信息通过对表示图像或视频的采样值的改变而被传送。 当然，也提供其他权利要求和组合。
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3.发明授权公开(公告)号：US08144368B2
公开(公告)日：2012-03-27
申请号：US10723181
申请日：2003-11-26
申请人： Tony F. Rodriguez , Alastair M. Reed , Ravi K. Sharma , Osama M. Alattar , Brett T. Hannigan , Kenneth L. Levy , Hugh L. Brunk , Geoffrey B. Rhoads , Ammon E. Gustafson
发明人： Tony F. Rodriguez , Alastair M. Reed , Ravi K. Sharma , Osama M. Alattar , Brett T. Hannigan , Kenneth L. Levy , Hugh L. Brunk , Geoffrey B. Rhoads , Ammon E. Gustafson
CPC分类号： H04N1/32149 , B29C45/1418 , B42D25/29 , G06T1/0021 , G06T7/0002 , G06T2201/0064 , G06T2207/30144 , G07D7/0034 , G07D7/004 , H04N1/00002 , H04N1/00005 , H04N1/00037 , H04N1/00092 , H04N1/32208 , H04N1/32219 , H04N1/32261 , H04N1/32304 , H04N1/32309 , H04N2201/3205 , H04N2201/3207 , H04N2201/3226 , H04N2201/3233 , H04N2201/3239 , H04N2201/327 , H04N2201/3271
摘要： This disclosure describes methods for using embedded auxiliary signals in documents for copy detection and other applications. In on application, the auxiliary signal is formed as an array of elements selected from a set of print structures with properties that change differently in response to copy operations. These changes in properties of the print structures that carry the embedded auxiliary signal are automatically detectable. For example, the changes make the embedded auxiliary signal more or less detectable. The extent to which the auxiliary data is detected forms a detection metric used in combination with one or more other metrics to differentiate copies from originals. Examples of sets of properties of the print structures that change differently in response to copy operations include sets of colors (including different types of inks), sets of screens or dot structures that have varying dot gain, sets of structures with different aliasing effects, etc. Robust and fragile watermarks are used in Image Replacement Documents for a variety of applications. Digital watermarks act as on-board mediators in authentication of a variety of printed documents. Finally, digital watermarks are used to help manage quality of the scanners used in imaging systems.
摘要翻译： 本公开描述了在用于复制检测和其他应用的文档中使用嵌入式辅助信号的方法。 在应用中，辅助信号被形成为从一组打印结构中选择的元素的阵列，其具有响应于复制操作而改变的属性。 携带嵌入式辅助信号的打印结构的这些属性变化可以自动检测。 例如，这些改变使得嵌入式辅助信号或多或少被检测出来。 检测辅助数据的程度形成与一个或多个其他度量结合使用的检测度量，以区分副本与原件。 对于复制操作而改变不同的打印结构的属性集合的示例包括具有不同的点增益的颜色（包括不同类型的墨水），屏幕或点结构的集合，具有不同混叠效果的结构集合等 图像替换文档中使用了强大而脆弱的水印，用于各种应用。 数字水印作为各种印刷文件认证中的板载介质。 最后，数字水印用于帮助管理成像系统中使用的扫描仪的质量。
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公开(公告)号：US20100322467A1
公开(公告)日：2010-12-23
申请号：US12708278
申请日：2010-02-18
IPC分类号： G06K9/00
CPC分类号： G06T1/005 , G06T1/0021 , G06T11/001 , G06T2201/0083 , H04N1/32144 , H04N1/32267 , H04N1/32309 , H04N1/6005 , H04N1/6008 , H04N2201/3228 , H04N2201/3233 , H04N2201/327
摘要： This patent document relates generally to steganography and digital watermarking. One claim recites, in a watermark encoder, a method of encoding auxiliary information in an image or video comprising: using a programmed electronic processor, computing a change in an attribute of an image or video sample to encode auxiliary information in the image or video; and changing color values of the image or video sample to effect the change in the attribute, in which changes to color values are determined based at least in part on both: i) visibility of the changes, and ii) anticipated watermark detection. Of course, other claims are provided too.
摘要翻译： 该专利文献一般涉及隐写术和数字水印。 一个权利要求在水印编码器中叙述了在图像或视频中对辅助信息进行编码的方法，包括：使用编程的电子处理器，计算图像或视频样本的属性的改变以对图像或视频中的辅助信息进行编码; 以及改变图像或视频样本的颜色值以实现属性的变化，其中至少部分地基于以下两者来确定对颜色值的改变：i）改变的可视性，以及ii）预期的水印检测。 当然，也提供其他索赔。
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公开(公告)号：US09563970B2
公开(公告)日：2017-02-07
申请号：US13007372
申请日：2011-01-14
CPC分类号： H04N1/32149 , G06F17/50 , G06F21/64 , G06F2221/2119 , G06F2221/2151 , G06T11/00 , G06T11/40 , G06T11/60 , G06T11/80
摘要： Art is infused with network identifiers at the time of its creation, rather than as a post-process. The identifiers may be encoded as overt elements of the art, and enable the artist to reprogram—over time—an augmentation of the artwork experience via network-delivered components. These network components can include stimuli present when the artist created the work (e.g., music), commentary by the artist, video and augmented reality features, audience-crowdsourced content (e.g., imagery of, or feedback provided by, other viewers encountering the artwork), etc. The artwork augmentation can vary with the user's context (e.g., location, demographics, interests, history). Physical brushes can be equipped to insert such identifiers in graphic arts; other authoring tools are disclosed as well. The network experience can be delivered via smartphones, projectors, and other devices. A great number of other features and arrangements are also detailed.
摘要翻译： 艺术在创作时被注入网络标识符，而不是作为后期处理。 标识符可以被编码为本领域的公开元素，并且使得艺术家能够通过时间重新编程 - 通过网络传递的组件来增加艺术作品体验。 这些网络组件可以包括当艺术家创作的作品（例如，音乐），艺术家的评论，视频和增强的现实特征，观众众包的内容（例如，其他观众遇到艺术品的图像或反馈）时所呈现的刺激 ）等。艺术品增加可以随着用户的上下文（例如，位置，人口统计，兴趣，历史）而变化。 物理刷可以配备在图形艺术中插入这样的标识符; 其他创作工具也被披露。 网络体验可以通过智能手机，投影机和其他设备进行交付。 还详细介绍了许多其他功能和安排。
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公开(公告)号：US08819172B2
公开(公告)日：2014-08-26
申请号：US13299140
申请日：2011-11-17
申请人： Bruce L. Davis , Tony F. Rodriguez , Geoffrey B. Rhoads , William Y. Conwell , Jerrine K. Owen , Adnan M. Alattar , Eliot Rogers , Brett A. Bradley , Alastair M. Reed , Robert Craig Brandis
发明人： Bruce L. Davis , Tony F. Rodriguez , Geoffrey B. Rhoads , William Y. Conwell , Jerrine K. Owen , Adnan M. Alattar , Eliot Rogers , Brett A. Bradley , Alastair M. Reed , Robert Craig Brandis
CPC分类号： G11B27/34 , G06F3/0482 , G06F3/0485 , G06K7/1443 , G06K9/6217 , G06Q30/0269 , G06T1/0021 , G06T1/0064 , G06T2201/0052 , H04M1/0264 , H04N5/23293 , H04N5/235 , H04N5/77 , H04W4/18 , H04W4/50 , H04W4/80 , H04W8/22 , H05B37/0218 , H05B37/0236
摘要： Arrangements involving portable devices (e.g., smartphones and tablet computers) are disclosed. One arrangement enables a content creator to select software with which that creator's content should be rendered—assuring continuity between artistic intention and delivery. Another utilizes a device camera to identify nearby subjects, and take actions based thereon. Others rely on near field chip (RFID) identification of objects, or on identification of audio streams (e.g., music, voice). Some technologies concern improvements to the user interfaces associated with such devices. Others involve use of these devices in connection with shopping, text entry, sign language interpretation, and vision-based discovery. Still other improvements are architectural in nature, e.g., relating to evidence-based state machines, and blackboard systems. Yet other technologies concern use of linked data in portable devices—some of which exploit GPU capabilities. Still other technologies concern computational photography. A great variety of other features and arrangements are also detailed.
摘要翻译： 公开了涉及便携式设备（例如，智能电话和平板电脑）的安排。 一种安排使得内容创作者可以选择应该呈现创作者内容的软件，从而确保艺术意图与传递之间的连续性。 另一个使用设备相机识别附近的主题，并基于此采取行动。 其他人依靠近场芯片（RFID）识别对象，或者识别音频流（例如，音乐，语音）。 一些技术涉及与这样的设备相关联的用户界面的改进。 其他涉及使用这些设备与购物，文本输入，手语解释和基于视觉的发现相关联。 还有其他改进是建筑性质的，例如涉及基于证据的状态机和黑板系统。 其他技术还涉及在便携式设备中使用链接数据，其中一些利用了GPU功能。 其他技术还涉及计算机摄影。 还详细介绍了各种各样的其他功能和安排。
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公开(公告)号：US07537170B2
公开(公告)日：2009-05-26
申请号：US10989737
申请日：2004-11-15
IPC分类号： G06K19/06
CPC分类号： G06T1/0042 , H04N1/00002 , H04N1/00005 , H04N1/00037
摘要： The present invention relates generally to documents such as printed documents. One claim recites a printed document including a machine-readable signal. The document includes: a first set of print structures conveyed with first ink; and a second set of print structures convey with optical variable ink. The second set of print structure are provided to cooperate with the first set of print structures so that at a first observation angle the first set of print structures and the second set of print structures appear to provide a first visibly perceptible feature. At a second observation angle, the second set of print structures appear less observable so that the first set of print structures and the second set of print structures provide a second visibly perceptible feature. Of course, other claims and combinations are provided as well.
摘要翻译： 本发明一般涉及诸如印刷文件的文件。 一个声明背诵包含机器可读信号的打印文件。 该文件包括：用第一墨水输送的第一组印刷结构; 并且第二组打印结构用光学可变墨水输送。 提供第二组打印结构以与第一组打印结构配合，使得在第一观察角度，第一组打印结构和第二组打印结构似乎提供了第一可见感知的特征。 在第二观察角度，第二组打印结构看起来较不可观察，使得第一组打印结构和第二组打印结构提供第二可见感知的特征。 当然，也提供其他权利要求和组合。
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公开(公告)号：US08355525B2
公开(公告)日：2013-01-15
申请号：US10053488
申请日：2001-11-02
申请人： Tyler J. McKinley , William C. Hein, III , Tony F. Rodriguez , Alastair M. Reed , Geoffrey B. Rhoads
发明人： Tyler J. McKinley , William C. Hein, III , Tony F. Rodriguez , Alastair M. Reed , Geoffrey B. Rhoads
CPC分类号： G06F17/30817 , G06Q40/04 , G06T1/0021 , G06T2201/0064 , G08G1/017 , H04N1/32144 , H04N1/32154 , H04N1/32203 , H04N1/32288 , H04N1/32352 , H04N19/467 , H04N21/234327 , H04N21/23892 , H04N21/8358 , H04N21/8456 , H04N2201/3233 , H04N2201/327 , H04N2201/3284
摘要： A method of segmenting a media signal for parallel watermarking operations sub-divides the media signal into segments, distributes the segments to parallel processors, and performs parallel digital watermark operations on the segments in the parallel processors. These parallel processors may comprise separate threads of execution on a processing unit, or several execution threads distributed to several processing units. In one enhancement, the method prioritizes the segments for watermarking operations. This enables finite processing resources to be allocated to segments in order of their priority. Further, processing resources are devoted to segments where the digital watermark is more likely to be imperceptible and/or readable. A system for distributed watermark embedding operations includes a watermark signal generator, a perceptual analyzer and a watermark applicator. The system supports operation-level parallelism in the concurrent operation of watermark embedder modules, and data parallelism in the concurrent operation of these modules on segments of a media signal to be embedded with an imperceptible digital watermark.
摘要翻译： 对并行水印操作的媒体信号进行分割的方法将媒体信号分割成段，将段分配到并行处理器，并对并行处理器中的段执行并行数字水印操作。 这些并行处理器可以包括处理单元上的单独的执行线程，或者分配给多个处理单元的几个执行线程。 在一个增强中，该方法优先考虑用于水印操作的段。 这使得有限的处理资源按照它们的优先级顺序被分配给段。 此外，处理资源专用于数字水印更可能不可察觉和/或可读的段。 用于分布式水印嵌入操作的系统包括水印信号发生器，感知分析器和水印施加器。 该系统支持水印嵌入器模块并行操作中的操作级并行性，并且在这些模块的并行操作中将数据并行化到要嵌入不可察觉的数字水印的媒体信号的片段上。
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公开(公告)号：US20100013951A1
公开(公告)日：2010-01-21
申请号：US12562883
申请日：2009-09-18
申请人： Tony F. Rodriguez , John Stach , Alastair M. Reed
发明人： Tony F. Rodriguez , John Stach , Alastair M. Reed
CPC分类号： G06T1/0028 , G06T1/0064
摘要： The present claims recite various steganographic and digital watermarking methods and apparatus. One claim recites a method of watermarking a representation of a physical object. The method includes: projecting a watermark orientation component onto a physical object; and using a camera or image sensor, capturing an image or video of the physical object including the watermark orientation component as projected thereon. Another claim recites an apparatus including: a light source for projecting a registration component onto a physical object; a camera or sensor for capturing an image or video of the physical object including the registration component as projected thereon; and an electronic processor programmed for encoding a message in the image or video captured by said camera or sensor. Of course, other claims and combinations are provided as well.
摘要翻译： 本权利要求描述了各种隐写和数字水印方法和装置。 一个要求描述了对物理对象的表示进行水印的方法。 该方法包括：将水印定向分量投影到物理对象上; 以及使用照相机或图像传感器，捕获包括投影在其上的水印定向分量的物理对象的图像或视频。 另一个权利要求描述了一种装置，包括：用于将登记部件投射到物理对象上的光源; 照相机或传感器，用于捕获包括在其上投射的登记部件的物理对象的图像或视频; 以及被编程用于对由所述相机或传感器捕获的图像或视频中的消息进行编码的电子处理器。 当然，也提供其他权利要求和组合。
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公开(公告)号：US20160189326A1
公开(公告)日：2016-06-30
申请号：US14805122
申请日：2015-07-21
CPC分类号： B42D25/333 , B41M3/10 , B42D25/00 , B42D25/23 , B42D25/328 , B42D2033/20 , B42D2035/24 , G06K9/22 , G06K9/46 , G06T1/0021 , G06T1/0028 , G06T2201/0051 , G07D7/0051 , G07D7/0053 , G07D7/0055 , G07D7/0057 , G07D7/12 , G07D7/20
摘要： The application discloses identification and security documents and methods, apparatus and systems for authenticating such identification and security documents. Some such methods and apparatus involve steganography or data hiding.
摘要翻译： 该申请公开了用于认证这种识别和安全文件的识别和安全文件和方法，装置和系统。 一些这样的方法和装置涉及隐写术或数据隐藏。
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