公开(公告)号：US07197156B1

公开(公告)日：2007-03-27

申请号：US09404292

申请日：1999-09-23

Applicant: Kenneth Lee Levy

Inventor： Kenneth Lee Levy

IPC: G06K9/00

CPC classification number: H04N1/32149 ,  G06T1/0028 ,  G06T2201/0083 ,  G06T2201/0202 ,  H04N1/32288 ,  H04N1/32299 ,  H04N1/32304 ,  H04N1/3232 ,  H04N5/85 ,  H04N5/913 ,  H04N9/8042 ,  H04N2005/91335 ,  H04N2005/91342 ,  H04N2201/3233 ,  H04N2201/327 ,  H04N2201/328

Abstract: The present invention relates generally to embedding and/or encoding auxiliary information within original data. For example, in one embodiment, a method of embedding auxiliary information in data is provided. The auxiliary information is not lost with compression of the embedded data. The embedded data initially includes a non-compressed form including the auxiliary information embedded therein. The method includes: (a) retrieving the auxiliary information from the non-compressed form of the embedded data; (b) compressing the non-compressed form of the embedded data; and (c) embedding the retrieved auxiliary information in the compressed embedded data, whereby the compressed embedded data comprises the auxiliary information embedded therein. Other embodiments are provided and claimed as well.

Abstract translation: 本发明一般涉及在原始数据中嵌入和/或编码辅助信息。 例如，在一个实施例中，提供了一种将辅助信息嵌入数据的方法。 辅助信息不会随着嵌入式数据的压缩而丢失。 嵌入数据最初包括非压缩形式，其中包含嵌入其中的辅助信息。 该方法包括：（a）从非压缩形式的嵌入数据中检索辅助信息; （b）压缩非压缩形式的嵌入数据; 以及（c）将检索到的辅助信息嵌入压缩的嵌入数据中，由此压缩的嵌入数据包括嵌入其中的辅助信息。 还提供并要求保护其他实施例。

公开(公告)号：US20070014428A1

公开(公告)日：2007-01-18

申请号：US11180334

申请日：2005-07-12

Applicant: Roumen Kountchev ,  Vladimir Todorov ,  Roumiana Kountcheva ,  Mariofanna Milanova ,  Charles Ford

Inventor： Roumen Kountchev ,  Vladimir Todorov ,  Roumiana Kountcheva ,  Mariofanna Milanova ,  Charles Ford

IPC: G06K9/00

CPC classification number: G06T1/0028 ,  G06T1/0071 ,  G06T2201/0052 ,  G06T2201/0083 ,  G06T2201/0202 ,  H04N1/32176 ,  H04N1/32187 ,  H04N2201/3233 ,  H04N2201/327

Abstract: Disclosed is a method and system for digital watermarking of multimedia signals. The input multimedia signal is represented using an inverse difference pyramid decomposition. Spectrum coefficients may be calculated for each level of the pyramid using a new kind of complex Hadamard transform, the matrix of which is distinguished from the known ones by the fact that only one-fourth of its coefficients are complex numbers. The phases of a previously selected part of the low-frequency coefficients are modified with the watermark data, limiting the angles of the phase changes in a gap of several degrees only. After an inverse complex Hadamard Transform, the values of the coefficients from all pyramid levels are summed up and the result is the watermarked signal. The watermark can contain multiple independent levels for each level of the pyramid.

Abstract translation: 公开了一种用于多媒体信号的数字水印技术的方法和系统。 输入多媒体信号使用逆差分金字塔分解来表示。 可以使用新型复杂Hadamard变换来计算每个级别的金字塔的频谱系数，其中该矩阵的矩阵通过仅有四分之一的系数是复数的事实与已知的相似。 先前选择的部分低频系数的相位用水印数据进行修改，仅限于几度的间隙中的相位变化的角度。 在逆复合Hadamard变换之后，将来自所有金字塔级的系数的值相加，并且结果是加水印的信号。 水印可以包含金字塔各级的多个独立级别。

公开(公告)号：US07159118B2

公开(公告)日：2007-01-02

申请号：US10066039

申请日：2002-01-31

Applicant: Rade Petrovic

Inventor： Rade Petrovic

IPC: H04L9/00 ,  H04N7/176

CPC classification number: G10L19/018 ,  G06T1/0028 ,  G06T2201/0202 ,  H04N1/32149 ,  H04N1/32229 ,  H04N2201/3233 ,  H04N2201/327 ,  H04N2201/3281

Abstract: The invention provides apparatus and methods for embedding and recovering watermarking information based on host-matching codes. A code selector provides codes to be embedded in the host signal. The code selector associates distinct input data strings to be embedded into the host signal with distinct code sets. Codes from the associated code sets are selected to represent the input data strings based on an analysis of the host signal (i.e. “host-matching”). The code selector may associate the distinct input data strings with distinct code sets based on a predefined mapping. An embedder embeds the codes into the host signal to provide a watermarked signal. An extractor at a decoder extracts the embedded codes from the watermarked signal. A code interpreter interprets the codes to recover the data represented thereby. The interpreter may perform a many-to-one mapping of an extracted code to the associated data string.

Abstract translation: 本发明提供了基于主机匹配码嵌入和恢复水印信息的装置和方法。 代码选择器提供嵌入在主机信号中的代码。 代码选择器将不同的输入数据串相关联，以嵌入到具有不同代码集的主机信号中。 选择来自相关代码集的代码以基于主机信号的分析（即“主机匹配”）来表示输入数据串。 代码选择器可以基于预定映射将不同的输入数据串与不同的代码集相关联。 嵌入器将代码嵌入到主机信号中以提供加水印的信号。 解码器中的提取器从加水印的信号中提取嵌入的代码。 代码解释器解释代码以恢复由此表示的数据。 解释器可以将提取的代码的多对一映射执行到相关联的数据串。

公开(公告)号：US07054461B2

公开(公告)日：2006-05-30

申请号：US10077354

申请日：2002-02-15

Applicant: Claude Zeller ,  Donald G. Mackay ,  William Kilmartin ,  Robert A. Cordery ,  William A. Brosseau ,  Hugh L. Brunk ,  Stephen K. Decker ,  Jun Tian

Inventor： Claude Zeller ,  Donald G. Mackay ,  William Kilmartin ,  Robert A. Cordery ,  William A. Brosseau ,  Hugh L. Brunk ,  Stephen K. Decker ,  Jun Tian

IPC: G06K9/00

CPC classification number: G06T1/0078 ,  G06T2201/0202

Abstract: The disclosure describes an authentication system and related methods for authenticating printed objects. The system uses an information-based metric along with one or more print quality metrics to provide accurate detection or classification of a counterfeit printed object. The print quality metric evaluates attributes of a subject image associated with the original printer, ink or paper to detect degradation of those operations due to copying operations like an image scanning and halftone printing subsequent to the original printing of the object. The information-based metric measures message symbol errors in an optically readable code, such as a digital watermark.

公开(公告)号：US20050220321A1

公开(公告)日：2005-10-06

申请号：US10495952

申请日：2002-10-24

Applicant: Gerrit Langelaar

Inventor： Gerrit Langelaar

IPC: H04N5/91 ,  G06T1/00 ,  G11B20/00 ,  G11B20/10 ,  H04N1/32 ,  H04N5/913 ,  H04N7/08 ,  H04N7/081 ,  H04N7/26 ,  G06K9/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050069169A1

公开(公告)日：2005-03-31

申请号：US10673894

申请日：2003-09-29

Applicant: Mohammad Zarrabizadeh

Inventor： Mohammad Zarrabizadeh

IPC: H04N11/00 ,  G06K9/00 ,  G06K9/36 ,  G06T1/00 ,  H04L9/12 ,  H04N5/445 ,  H04N5/913 ,  H04N7/025 ,  H04N7/08 ,  H04N7/081 ,  H04N7/16 ,  H04N7/24 ,  H04N11/24

CPC classification number: G06T1/0085 ,  G06T1/0028 ,  G06T2201/0202

Abstract: Data to be impressed upon the average value of a chrominance portion of a block, is replicated at least once. The original and each replica is impressed on blocks in the same block position of separate frames. The frames that have like-positioned blocks that are carrying the same data are considered to be a group. Specific blocks of the frame may be embedded with a particular known data sequence rather than user data. Each group may employ a different known sequence. Instead of simply repeating the data for each like-positioned block of a group, the amount added to the average value for each such block may be changed slightly from frame to frame in group, even when the complexity of the blocks is the same. At a receiver, the multiple instances of the same data bit are extracted and combined to form a single received bit.

Abstract translation: 要对块的色度部分的平均值施加的数据至少复制一次。 原始和每个副本印在分开的帧的相同块位置的块上。 具有相同位置的块携带相同数据的帧被认为是一组。 帧的特定块可以嵌入特定的已知数据序列而不是用户数据。 每个组可以采用不同的已知序列。 代替简单地重复组中每个相似位置的块的数据，即使当块的复杂度相同时，也可以将每个这样的块的平均值所添加的量稍微改变为组中的帧。 在接收机处，提取并组合相同数据位的多个实例以形成单个接收位。

公开(公告)号：US20050063562A1

公开(公告)日：2005-03-24

申请号：US10893141

申请日：2004-07-15

Applicant: Hugh Brunk ,  John Stach

Inventor： Hugh Brunk ,  John Stach

IPC: G06K9/00 ,  G06T1/00

CPC classification number: G06K9/036 ,  G06K9/00067 ,  G06K9/00087 ,  G06T1/0028 ,  G06T2201/0202

Abstract: The present invention relates generally to fingerprinting (i.e., human fingerprints). More specifically the present invention relates to explicitly embedding so-called fingerprint minutiae locations in an identification document via digital watermarking. A relative mapping of the minutiae locations can be transformed, scrambled and combined with a watermark orientation component, and then embedded in a photograph or artwork. The embedded photograph or artwork is printed on, e.g., an identification document. Another aspect of the invention is a matching method used to match a representation of a set of control minutiae locations with a representation of a set of sample minutiae locations.

Abstract translation: 本发明一般涉及指纹（即人类指纹）。 更具体地，本发明涉及通过数字水印将所谓的指纹细节位置显式地嵌入识别文档中。 可以将细节位置的相对映射变换，加扰并与水印定向分量组合，然后嵌入照片或艺术品中。 嵌入的照片或图案印在例如身份证件上。 本发明的另一方面是用于将一组控制细节位置的表示与一组样本细节位置的表示相匹配的匹配方法。

公开(公告)号：US06792129B1

公开(公告)日：2004-09-14

申请号：US09645105

申请日：2000-08-23

Applicant: Wenjun Zeng ,  Shawmin Lei

Inventor： Wenjun Zeng ,  Shawmin Lei

IPC: G06K900

CPC classification number: G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0202

Abstract: Methods and apparatus for watermarking a digital media object, and for detecting watermarks, are presented. The basic concept underlying the disclosed approach is watermarking/detection in a transform space that allows the same level of watermarking to be applied to all samples. For instance, in one embodiment, a watermarking system first nonlinearly transforms the original signal to a perceptually uniform domain, and then embeds the watermark in this domain without varying the statistical properties of the watermark at each sample. At the watermark detector, a candidate image is transformed to the same perceptually uniform domain, and then correlated with the original watermark sequence. Under such conditions, it is shown that an optimal watermark detector can be derived. This approach is particularly attractive when the original image is unavailable at the detector, as it effectively prevents the image content from biasing the watermark detection score.

Abstract translation: 提出了用于对数字媒体对象进行水印处理和检测水印的方法和装置。 所公开方法的基本概念是在允许将相同水平的水印应用于所有样本的变换空间中进行水印/检测。 例如，在一个实施例中，水印系统首先将原始信号非线性地变换成感知统一的域，然后将水印嵌入该域中而不改变每个样本处的水印的统计特性。 在水印检测器处，将候选图像转换为相同的感知统一域，然后与原始水印序列相关。 在这种条件下，可以得出最佳水印检测器。 当原始图像在检测器处不可用时，这种方法特别有吸引力，因为它有效地防止图像内容偏置水印检测分数。

公开(公告)号：US20040170329A1

公开(公告)日：2004-09-02

申请号：US10731146

申请日：2003-12-10

Inventor： Takahiro Yagishita ,  Yukiko Yamazaki

IPC: G06K009/36

CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0202 ,  H04N1/32144 ,  H04N19/467 ,  H04N19/59 ,  H04N2201/33328 ,  H04N2201/33357 ,  H04N2201/33378

Abstract: An image processing system includes a transmission-side apparatus that transmits image data and a reception-side apparatus that receives and visualizes the image data. In the transmission-side apparatus, a data generator generates an image data, a first converter subjects the image data to a first conversion to thereby generate a first image data, a second converter subjects the first image data to a second conversion to thereby generate a second image data, a subtractor subtracts the second image data from the image data to thereby generate a third image data, a compressor compresses the third image data to thereby generate compressed image data, and an embedding unit embeds the compressed image data in the first image data.

Abstract translation: 图像处理系统包括发送图像数据的发送侧装置和接收并可视化图像数据的接收侧装置。 在发送侧装置中，数据生成器生成图像数据，第一转换器对图像数据进行第一转换，从而生成第一图像数据，第二转换器对第一图像数据进行第二转换，从而生成 第二图像数据，减法器从图像数据中减去第二图像数据，从而生成第三图像数据，压缩器压缩第三图像数据，从而生成压缩图像数据，嵌入单元将压缩图像数据嵌入第一图像 数据。

公开(公告)号：US20040120546A1

公开(公告)日：2004-06-24

申请号：US10733293

申请日：2003-12-12

Inventor： Hiroshi Yoshiura ,  Kousuke Anzai ,  Yutaka Kurosu

IPC: G06K009/00

CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0202 ,  H04N1/00005 ,  H04N1/00037 ,  H04N1/32203 ,  H04N1/32208 ,  H04N21/8358 ,  H04N2201/3233 ,  H04N2201/327

Abstract: A method and apparatus for embedding information into a target element in which information is to be embedded and a storage medium. The method and apparatus include obtaining plural sets of data values of a plurality of elements, wherein each set of data values is obtained along one direction extending through the target element, determining a strength of embedding information into the target element based on the plural sets of data values obtained, and embedding information into the target element based on the strength determined. The storage medium stores a program which enables embedding information by execution by a computer.

Abstract translation: 一种用于将信息嵌入到要嵌入信息的目标元素和存储介质中的方法和装置。 该方法和装置包括获得多个元素的多组数据值，其中每个数据值集合沿着穿过目标元素的一个方向被获得，基于多组数据值确定将信息嵌入到目标元素中的强度 获得的数据值，以及基于确定的强度将信息嵌入到目标元素中。 存储介质存储通过计算机执行嵌入信息的程序。