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公开(公告)号：US20100091336A1
公开(公告)日：2010-04-15
申请号：US12422715
申请日：2009-04-13
CPC分类号： G06T1/0071 , G06T1/0028 , G06T2201/0083 , H04N1/32149 , H04N1/32283 , H04N1/32304 , H04N2201/3235 , H04N2201/3236 , H04N2201/3239
摘要： A media object authentication system uses layers of security features based on digital watermarks embedded in media objects. The system generates a first digital watermark with a message payload carrying data about the object, such as a hash of text data printed on the object. The first digital watermark is combined with a content signature derived from features of the media object, such as frequency domain attributes, edge attributes, or other filtered version of the media signal (e.g., image photo on a secure document) on the media object. This combination forms a new digital watermark signal that is embedded in the host media object. To verify the object, the digital watermark payload is extracted and compared with the data about the object. The combined digital watermark and content signature is also evaluated to authenticate the media signal on the media object.
摘要翻译： 媒体对象认证系统使用基于嵌入在媒体对象中的数字水印的安全特征层。 该系统产生具有携带关于对象的数据的消息有效载荷的第一数字水印，诸如打印在对象上的文本数据的散列。 第一数字水印与从媒体对象的特征（例如频域属性，边缘属性或媒体对象上的媒体信号的其他滤波版本（例如安全文档上的图像照片））导出的内容签名组合。 该组合形成嵌入在主媒体对象中的新的数字水印信号。 为了验证对象，提取数字水印有效负载并将其与关于对象的数据进行比较。 还评估组合的数字水印和内容签名以对媒体对象上的媒体信号进行认证。
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公开(公告)号：US07519819B2
公开(公告)日：2009-04-14
申请号：US10158385
申请日：2002-05-29
CPC分类号： G06T1/0071 , G06T1/0028 , G06T2201/0083 , H04N1/32149 , H04N1/32283 , H04N1/32304 , H04N2201/3235 , H04N2201/3236 , H04N2201/3239
摘要： A media object authentication system uses layers of security features based on digital watermarks embedded in media objects. The system generates a first digital watermark with a message payload carrying data about the object, such as a hash of text data printed on the object. The first digital watermark is combined with a content signature derived from features of the media object, such as frequency domain attributes, edge attributes, or other filtered version of the media signal (e.g., image photo on a secure document) on the media object. This combination forms a new digital watermark signal that is embedded in the host media object. To verify the object, the digital watermark payload is extracted and compared with the data about the object. The combined digital watermark and content signature is also evaluated to authenticate the media signal on the media object.
摘要翻译： 媒体对象认证系统使用基于嵌入在媒体对象中的数字水印的安全特征层。 该系统产生具有携带关于对象的数据的消息有效载荷的第一数字水印，诸如打印在对象上的文本数据的散列。 第一数字水印与从媒体对象的特征（例如频域属性，边缘属性或媒体对象上的媒体信号的其他滤波版本（例如安全文档上的图像照片））导出的内容签名组合。 该组合形成嵌入在主媒体对象中的新的数字水印信号。 为了验证对象，提取数字水印有效负载并将其与关于对象的数据进行比较。 还评估组合的数字水印和内容签名以对媒体对象上的媒体信号进行认证。
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公开(公告)号：US07607016B2
公开(公告)日：2009-10-20
申请号：US10045654
申请日：2001-10-26
IPC分类号： H04L9/32
CPC分类号： H04N17/004 , G06Q20/401 , G06T1/0042 , G06T1/0071 , G06T2201/0051 , H04L29/06 , H04L67/06 , H04L69/329 , H04N1/32154 , H04N1/3216 , H04N21/4425 , H04N21/8358
摘要： A method is provided for authenticating a media signal and related software, systems and applications. A digital watermark is embedded in the media signal. A metric is calculated for the digital watermark as embedded in the media signal. The resulting metric is then embedded in the media signal with the digital watermark. To detect a potential alteration, a detector computes the metric for a potentially corrupted version of the embedded media signal. The detector then compares its computed metric to the embedded metric to detect whether the alteration has occurred.
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公开(公告)号：US08345316B2
公开(公告)日：2013-01-01
申请号：US12422715
申请日：2009-04-13
IPC分类号： H04N1/40
CPC分类号： G06T1/0071 , G06T1/0028 , G06T2201/0083 , H04N1/32149 , H04N1/32283 , H04N1/32304 , H04N2201/3235 , H04N2201/3236 , H04N2201/3239
摘要： A media object authentication system uses layers of security features based on digital watermarks embedded in media objects. The system generates a first digital watermark with a message payload carrying data about the object, such as a hash of text data printed on the object. The first digital watermark is combined with a content signature derived from features of the media object, such as frequency domain attributes, edge attributes, or other filtered version of the media signal (e.g., image photo on a secure document) on the media object. This combination forms a new digital watermark signal that is embedded in the host media object. To verify the object, the digital watermark payload is extracted and compared with the data about the object. The combined digital watermark and content signature is also evaluated to authenticate the media signal on the media object.
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公开(公告)号：US08190901B2
公开(公告)日：2012-05-29
申请号：US10449827
申请日：2003-05-29
CPC分类号： G06T1/0071 , G06T1/0028 , G06T2201/0083 , H04N1/32149 , H04N1/32283 , H04N1/32304 , H04N2201/3235 , H04N2201/3236 , H04N2201/3239
摘要： A media object authentication system uses layers of security features based on digital watermarks embedded in media objects. The system generates a first digital watermark with a message payload carrying data about the object, such as a hash of text data printed on the object. The first digital watermark is combined with a content signature derived from features of the media object, such as frequency domain attributes, edge attributes, or other filtered version of the media signal (e.g., image photo on a secure document) on the media object. This combination forms a new digital watermark signal that is embedded in the host media object. Biometric information may also be embedded in a machine readable code in the object or indexed via the machine readable code. This biometric information is used to generate biometric templates, and facilitate or enhance biometric comparison for one to one or one to many verification.
摘要翻译： 媒体对象认证系统使用基于嵌入在媒体对象中的数字水印的安全特征层。 该系统产生具有携带关于对象的数据的消息有效载荷的第一数字水印，诸如打印在对象上的文本数据的散列。 第一数字水印与从媒体对象的特征（例如频域属性，边缘属性或媒体对象上的媒体信号的其他滤波版本（例如安全文档上的图像照片））导出的内容签名组合。 该组合形成嵌入在主媒体对象中的新的数字水印信号。 生物特征信息也可以嵌入在对象中的机器可读代码中，或通过机器可读代码进行索引。 该生物特征信息用于生成生物识别模板，并且便于或增强生物特征比较，用于一对一或一对多验证。
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公开(公告)号：US20090207920A1
公开(公告)日：2009-08-20
申请号：US12360549
申请日：2009-01-27
IPC分类号： H04N11/04
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 embedding auxiliary data and data hiding. One claim recites a method including: calculating with a processor or electronic circuitry characteristics of a media signal comprising audio or video; based at least in part on calculated characteristics of the media signal, providing a map of the media signal, wherein the map identifies at least one portion of the media signal in which plural-bit data should be steganographically encoded; transforming at least some portions of the media signal into a transform domain; and steganographically encoding with a processor or electronic circuitry auxiliary data in data representing at least the one portion of the media signal in which the plural-bit data should be steganographically encoded, and wherein at least said act of transforming or said act of steganographically encoding utilizes the map of the media signal. Other claims and combinations are also provided.
摘要翻译： 本发明一般涉及嵌入辅助数据和数据隐藏。 一个要求描述了一种方法，包括：利用包括音频或视频的媒体信号的处理器或电子电路特性进行计算; 至少部分地基于所计算的媒体信号的特性，提供媒体信号的映射，其中，所述映射标识要对其进行隐写编码的多位数据的媒体信号的至少一部分; 将所述媒体信号的至少一些部分转换成变换域; 以及在代表媒体信号的至少一部分的数据中的处理器或电子电路辅助数据的隐写编码，其中多位数据应被隐写编码，并且其中至少所述变换动作或所述隐写编码动作利用 媒体信号的地图。 还提供了其他权利要求和组合。
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公开(公告)号：US07224819B2
公开(公告)日：2007-05-29
申请号：US10277617
申请日：2002-10-21
IPC分类号： G06K9/00
CPC分类号： B42D25/333 , B42D25/00 , B42D25/305 , G06F17/30876 , G06K7/1417 , G06K7/1447 , G06K9/00442 , G06K19/06037 , G06K19/06046 , G06K19/14 , G06K19/18 , G06K2017/0064 , G06K2019/06253 , G06Q20/1235 , G06Q20/341 , G06Q20/40145 , G06T1/0021 , G06T1/0028 , G06T1/005 , G06T1/0071 , G06T2201/0064 , G06T2201/0065 , G07C9/00079 , G07D7/0034 , G07D7/004 , G07F7/086 , G07F7/1008 , G07F17/0014 , G07F17/26 , G10L19/018 , G11B20/00086 , G11B20/00884 , G11B20/00891 , G11B2220/2562 , H04N1/00005 , H04N1/00037 , H04N1/00079 , H04N1/00846 , H04N1/00875 , H04N1/32122 , H04N1/32144 , H04N1/32149 , H04N1/32154 , H04N1/3216 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N1/32288 , H04N1/32352 , H04N7/163 , H04N19/00 , H04N19/467 , H04N21/23892 , H04N21/44008 , H04N21/4627 , H04N21/8355 , H04N21/8358 , H04N21/858 , H04N2201/3205 , H04N2201/3207 , H04N2201/3225 , H04N2201/3226 , H04N2201/323 , H04N2201/3233 , H04N2201/327 , H04N2201/3271 , H04N2201/3274 , H04N2201/328 , H04N2201/3284
摘要： A method for tracking media signals in multimedia content is provided by uniquely identifying the multimedia content with a digital watermark identifier. A video channel is preferably embedded with a first watermark identifier. The first identifier uniquely identifies the multimedia content or the content family. A second digital watermark is embedded in an audio channel of the multimedia content. The second digital watermark uniquely identifies a user or user device. When the multimedia content is found in an unauthorized or unexpected channel, the content can be traced back to its misappropriating source via the user identifier.
摘要翻译： 通过用数字水印标识符唯一地识别多媒体内容来提供用于跟踪多媒体内容中的媒体信号的方法。 视频频道优选地嵌入有第一水印标识符。 第一标识符唯一地标识多媒体内容或内容系列。 第二数字水印被嵌入在多媒体内容的音频通道中。 第二数字水印唯一地标识用户或用户设备。 当在未经授权或意外的频道中发现多媒体内容时，内容可以通过用户标识符追溯到其盗用来源。
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8.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：US06633654B2
公开(公告)日：2003-10-14
申请号：US09737609
申请日：2000-12-13
IPC分类号： G06K900
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. For image applications, the model computes the sensitivity of an image to changes based upon local image contrast, while taking into account the sensitivity of connected directional edges. By comparing the local image strength of various directionally filtered versions of the image, the model creates a directional control vector. This control vector may be used to reduce changes to an image in text and edge regions, and thus, avoid perceptible artifacts in those regions. The model takes into account the local contrast of the image and the directional control vector to create a gain vector. Using the local contrast measurements, the model follows the eye's nonlinear response to contrast discrimination.
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。 对于图像应用，该模型基于局部图像对比度计算图像的灵敏度，同时考虑连接的方向边缘的灵敏度。 通过比较图像的各种定向滤波版本的局部图像强度，模型创建方向控制向量。 该控制向量可以用于减少对文本和边缘区域中的图像的改变，并且因此避免那些区域中可感知的伪像。 该模型考虑了图像的局部对比度和方向控制矢量以产生增益矢量。 使用局部对比度测量，该模型遵循眼睛对比度辨别的非线性响应。
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公开(公告)号：US07822226B2
公开(公告)日：2010-10-26
申请号：US12360549
申请日：2009-01-27
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 embedding auxiliary data and data hiding. One claim recites a method including: calculating with a processor or electronic circuitry characteristics of a media signal comprising audio or video; based at least in part on calculated characteristics of the media signal, providing a map of the media signal, wherein the map identifies at least one portion of the media signal in which plural-bit data should be steganographically encoded; transforming at least some portions of the media signal into a transform domain; and steganographically encoding with a processor or electronic circuitry auxiliary data in data representing at least the one portion of the media signal in which the plural-bit data should be steganographically encoded, and wherein at least said act of transforming or said act of steganographically encoding utilizes the map of the media signal. Other claims and combinations are also provided.
摘要翻译： 本发明一般涉及嵌入辅助数据和数据隐藏。 一个要求描述了一种方法，包括：利用包括音频或视频的媒体信号的处理器或电子电路特性进行计算; 至少部分地基于所计算的媒体信号的特性，提供媒体信号的映射，其中，所述映射标识要对其进行隐写编码的多位数据的媒体信号的至少一部分; 将所述媒体信号的至少一些部分转换成变换域; 以及在代表媒体信号的至少一部分的数据中的处理器或电子电路辅助数据的隐写编码，其中多位数据应被隐写编码，并且其中至少所述变换动作或所述隐写编码动作利用 媒体信号的地图。 还提供了其他权利要求和组合。
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公开(公告)号：US07261612B1
公开(公告)日：2007-08-28
申请号：US09709255
申请日：2000-11-08
CPC分类号： G09B5/06 , A63H3/28 , A63H2200/00
摘要： The pages of a children's book are marked in a machine-readable manner (e.g., by imperceptible digital watermark technology). When such a page is shown to a camera-equipped computer device, the watermark is decoded, and the story text from that page is read aloud to a child. A number of variants are contemplated, including using book pages as entry points to corresponding videos; using books to link to corresponding interactive web sites or multi-player games; incorporating the camera in a plush toy; evoking different responses from the system by using the book to convey gestures to the camera; providing such functionality in cell phones, set top boxes, and Bluetooth-equipped devices; customizing read-aloud stories using words provided by the child or a parent; etc.
摘要翻译： 儿童书的页面以机器可读的方式标记（例如，通过不可察觉的数字水印技术）。 当将这样的页面显示给配备有相机的计算机设备时，水印被解码，并且来自该页面的故事文本被朗读给小孩。 考虑了许多变型，包括使用书页作为相应视频的入口点; 使用书籍链接到相应的互动网站或多玩家游戏; 将相机并入毛绒玩具中; 通过使用本书将手势传达给相机，唤起系统的不同响应; 在手机，机顶盒和配备蓝牙的设备中提供这样的功能; 使用小孩或父母提供的单词自定义朗读故事; 等等
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