公开(公告)号：US20060280246A1

公开(公告)日：2006-12-14

申请号：US11389560

申请日：2006-03-23

Applicant: Adnan Alattar ,  Geoffrey Rhoads

Inventor： Adnan Alattar ,  Geoffrey Rhoads

IPC: H04N11/04 ,  H04B1/66 ,  H04N11/02 ,  H04N7/12

CPC classification number: G06T1/0085 ,  G06T1/0064 ,  G06T1/0071 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0601

Abstract: This disclosure describes several video watermarking and fingerprinting enhancements. These enhancements include synchronizing watermark detectors with one-dimensional calibration signals, layering digital watermarks, watermarks for version control, compressed domain watermarking, watermarking of video object layers, key channel watermark embedding for video, robust fingerprinting of video and watermarking of scalable video.

公开(公告)号：US07020303B2

公开(公告)日：2006-03-28

申请号：US09810079

申请日：2001-03-16

Applicant: Kenneth L. Levy ,  Stephen K. Decker

Inventor： Kenneth L. Levy ,  Stephen K. Decker

IPC: G06K9/00

CPC classification number: G06T1/0028 ,  G06T1/0064 ,  G06T2201/0601

Abstract: Processes and apparatus for improving the state of the art for watermarking and data protection. The disclosure includes feature-based watermarks, auto- and cross-correlation techniques for determining scaling and rotation, transitions in time based watermarking, autocorrelation watermarks for images, and dynamic content scrambling of static files.

Abstract translation: 用于改进用于水印和数据保护的现有技术的过程和装置。 本公开包括基于特征的水印，用于确定缩放和旋转的自相关和互相关技术，基于时间的水印的转换，图像的自相关水印和静态文件的动态内容加扰。

公开(公告)号：US20040037448A1

公开(公告)日：2004-02-26

申请号：US10453876

申请日：2003-06-02

Inventor： Trent J. Brundage

IPC: G06K009/00

CPC classification number: G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0601

Abstract: The present invention provides steganographic embedding techniques. In particular, the present invention provides a stamper (e.g., a rubber stamp) that includes a steganographic signal (e.g., a digital watermark) embedded in a stamping surface pattern thereof. The digital watermark survives in its host pattern when the stamper stamps the host pattern. The digital watermark can be used to authenticate or identify the stamper. The digital watermark can also be used to link to related information.

Abstract translation: 本发明提供隐写嵌入技术。 特别地，本发明提供一种压模（例如橡皮图章），其包括嵌入其冲压表面图案中的隐写信号（例如，数字水印）。 当压模标记主机图案时，数字水印以其主机模式存在。 数字水印可用于认证或识别压模。 数字水印也可用于链接到相关信息。

公开(公告)号：US20030133589A1

公开(公告)日：2003-07-17

申请号：US10051808

申请日：2002-01-17

Inventor： Frederic Deguillaume ,  Sviatoslav Voloshynovskiy ,  Thierry Pun

IPC: G06K009/00

CPC classification number: G06T3/0006 ,  G06K9/6211 ,  G06T1/0064 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0065 ,  G06T2201/0601

Abstract: The present invention relates to the methods of estimation and recovering of general affine geometrical transformations which were applied to data, extensible to any other defined class of geometrical transformations, according to the preamble of the dependent claims. The parameters of the undergone deformation are robustly estimated based on maxima given by a parametric transform such as Hough transform or Radon transform of some embedded information with periodical or any other known regular structure. The main applications of this invention are robust digital still image/video watermarking, document authentication, and detection of periodical or hidden patterns. In the case of periodical watermarks, the watermark can also be predistorted before embedding based on a key to defeat block-by-block removal attack.

Abstract translation: 本发明涉及根据从属权利要求的前序部分，其应用于可扩展到任何其他限定类型的几何变换的数据的一般仿射几何变换的估计和恢复方法。 基于由具有周期性或任何其他已知规则结构的一些嵌入式信息的霍夫变换或氡变换的参数变换给出的最大值来鲁棒地估计经历变形的参数。 本发明的主要应用是稳健的数字静止图像/视频水印，文档认证和周期性或隐藏模式的检测。 在定期水印的情况下，水印还可以在嵌入之前进行预失真，基于一个关键字来消除逐块删除攻击。

公开(公告)号：US20030102660A1

公开(公告)日：2003-06-05

申请号：US10241367

申请日：2002-09-10

Inventor： Geoffrey B. Rhoads

IPC: B42D015/00

CPC classification number: G06T1/0064 ,  B42D25/29 ,  B42D25/305 ,  G06Q20/341 ,  G06Q20/40145 ,  G06T2201/0601 ,  G07D7/0047 ,  G07D7/20 ,  G07F7/08 ,  G07F7/1008 ,  G07F7/12 ,  H04L9/3247 ,  H04L2209/08 ,  H04L2209/30 ,  H04L2209/56 ,  H04L2209/603

Abstract: The present invention relates to an identification document for a subject. The identification document includes a substrate, and a visual image formed on the substrate. The visual image includes a face image of the subject in a first area, and invisible but retrievable embedded information formed in the face image in the first area but not formed in a second area of the visual image. The embedded information corresponds to the identity of the subject and is usable to identify the subject.

Abstract translation: 本发明涉及一种对象的识别文件。 识别文件包括基板和形成在基板上的视觉图像。 视觉图像包括在第一区域中的被摄体的脸部图像，以及形成在第一区域中的脸部图像中但不形成在视觉图像的第二区域中的不可见但可检索的嵌入信息。 嵌入信息对应于被摄体的身份，并且可用于识别被摄体。

公开(公告)号：US20030037075A1

公开(公告)日：2003-02-20

申请号：US10139147

申请日：2002-05-02

Inventor： Brett T. Hannigan ,  Ravi K. Sharma ,  Stephen K. Decker ,  Phillip Andrew Seder ,  Tony F. Rodriguez ,  Andrew Klonsky

IPC: G06F015/00

CPC classification number: G06T1/0021 ,  A63H3/28 ,  A63H2200/00 ,  G06Q30/02 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0601 ,  G09B5/06 ,  H04N1/00127

Abstract: The present invention relates to toys and game applications that are enhanced with digital watermarks. In one embodiment, a character card includes a unique identifier in the form of a digital watermark. The identifier is used to link to a database record, which can be updated to reflect changes in game attributes. Some such game attributes include life, character type and name, health, strength, and power levels. The data record can be updated or modified to reflect changes in attributes due to activity or events during a computer software game. The database record can be used by the computer software game to alter or enhance the game. In another embodiment, a toy interacts with toy components or cards via digital watermarks. Digital watermarks enhance games, toys and books in still other embodiments.

公开(公告)号：US09959588B2

公开(公告)日：2018-05-01

申请号：US15331433

申请日：2016-10-21

Applicant: Digimarc Corporation

Inventor： Geoffrey B. Rhoads

IPC: G06K9/00 ,  G06T1/00 ,  H04L9/14 ,  H04L9/30 ,  H04L29/06 ,  H04W12/02

CPC classification number: G06T1/0064 ,  G06K9/00442 ,  G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0601 ,  G09C5/00 ,  H04L9/14 ,  H04L9/30 ,  H04L63/0428 ,  H04L2209/608 ,  H04L2209/80 ,  H04W12/02

Abstract: An object (e.g., a driver's license) is tested for authenticity using imagery captured by a consumer device (e.g., a mobile phone camera). Corresponding data is sent from the consumer device to a remote system, which has secret knowledge about features indicating object authenticity. The phone, or the remote system, discerns the pose of the object relative to the camera from the captured imagery. The remote system tests the received data for the authentication features, and issues an output signal indicating whether the object is authentic. This testing involves modeling the image data that would be captured by the consumer device from an authentic object—based on the object's discerned pose (and optionally based on information about the camera optics), and then comparing this modeled data with the data sent from the consumer device. A great variety of other features and arrangements are also detailed.

公开(公告)号：US09928560B2

公开(公告)日：2018-03-27

申请号：US15605904

申请日：2017-05-25

Applicant: Digimarc Corporation

Inventor： Alastair M. Reed ,  Ravi K. Sharma

IPC: G06K9/00 ,  G06T1/00 ,  H04N1/32

CPC classification number: G06T1/0028 ,  G06K9/00 ,  G06T1/0021 ,  G06T1/005 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0601 ,  H04N1/32309

Abstract: The present invention relate generally to signal encoding and decoding. One claim recites a method comprising: obtaining color image data or color video data, the color image data or color video data comprising an encoded signal pattern, the encoded signal pattern aiding detection of an encoded message, the pattern comprising first frequency components and second frequency components, the color image data or color video data comprising first color data and second color data, in which the first color data comprises the first frequency components encoded therein, and the second color data comprises the second frequency components encoded therein; combining the first color data and the second color data, said combining yielding combined color data; utilizing one or more processors or electronic processing circuitry, detecting the encoded signal pattern from the combined color data, said detecting yielding rotation and scale information; and using the rotation and scale information to detect the encoded message from the combined color data. Of course, other combinations and claims are provided too.

公开(公告)号：US20180005343A1

公开(公告)日：2018-01-04

申请号：US15641081

申请日：2017-07-03

Applicant: Digimarc Corporation

Inventor： Geoffrey B. Rhoads ,  Tony F. Rodriguez ,  Eric D. Evans ,  Ravi K. Sharma ,  Tomas Filler ,  Vahid Sedighianaraki

IPC: G06T1/00 ,  G06T3/00 ,  G06T7/73 ,  G06T7/32

CPC classification number: G06T1/0092 ,  G06T1/0064 ,  G06T3/0006 ,  G06T7/32 ,  G06T7/74 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0601 ,  G06T2207/20021 ,  G06T2207/20048 ,  G06T2207/20081 ,  G06T2207/30244

Abstract: A steganographic digital watermark signal is decoded from host imagery without requiring a domain transformation for signal synchronization, thereby speeding and simplifying the decoding operation. In time-limited applications, such as in supermarket point-of-sale scanners that attempt watermark decode operations on dozens of video frames every second, the speed improvement allows a greater percentage of each image frame to be analyzed for watermark data. In battery-powered mobile devices, avoidance of repeated domain transformations extends battery life. A great variety of other features and arrangements, including machine learning aspects, are also detailed.

公开(公告)号：US09665919B2

公开(公告)日：2017-05-30

申请号：US15131961

申请日：2016-04-18

Applicant: Digimarc Corporation

Inventor： Alastair M. Reed ,  Ravi K. Sharma

IPC: G06K9/00 ,  G06T1/00 ,  H04N1/32

CPC classification number: G06T1/0028 ,  G06K9/00 ,  G06T1/0021 ,  G06T1/005 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0601 ,  H04N1/32309

Abstract: The present invention relate generally to digital watermarking and data hiding. One claim recites an apparatus comprising: electronic memory for storing first color data and second color data, the first color data and the second color data represent data from a color image signal or color video signal, and a digital watermark signal, the digital watermark signal serving to facilitate detection of a watermark message; means for separating the digital watermark signal into first frequency components and second frequency components; means for modifying the first color data by hiding the first frequency components therein; and means for modifying the second color data by hiding the second frequency components therein. Of course, other combinations and claims are provided too.