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1. 发明申请

WO2003051034A1 電子情報埋め込み方法及びその抽出方法、電子情報埋め込み装置及びその抽出装置、並びにそのプログラム审中-公开
标题翻译：电子信息收集方法和提取方法，电子信息处理设备和提取设备及其程序
公开(公告)号：WO2003051034A1
公开(公告)日：2003-06-19
申请号：PCT/JP2001/010904
申请日：2001-12-12
申请人：国際航業株式会社 , 金井理 , 中根達英 , 栗崎直子 , 北村伊久裕
发明人：金井　理 , 中根達英 , 栗崎直子 , 北村伊久裕
IPC分类号： H04N1/387
CPC分类号： H04N1/32187 , G01C11/00 , H04N1/3216 , H04N2201/3233 , H04N2201/327
摘要： When digital watermark data is buried in point group data obtained by three−dimensional measurement, an x−y plane area where the point group data is defined is divided into pre−defined small areas to create point groups contained in the small areas, and the x− and y−coordinate values are so offset for every point group that the center of gravity of the point groups may be the origin, thereby converting the values into offset point group. Each offset point group is subjected to discrete Fourier transform to determine a Fourier coefficient series, and the Fourier coefficient series is changed according to the digital watermark data into watermarked Fourier coefficient series. The watermarked Fourier coefficient series is subjected to inverse discrete Fourier transform to create watermarked complex series, to determine an optimum watermark burying strength satisfying the tolerance of the coordinate errors caused by the burying, of the watermarked complex series. On the basis of the optimum burying strength, the Fourier coefficient series is changed again into a watermarked Fourier coefficient series. The watermarked Fourier coefficient series are inversely offset into watermarked point group data.
摘要翻译：当将数字水印数据埋藏在通过三维测量获得的点组数据中时，将定义点组数据的x-y平面区域划分为预定义的小区域以创建包含在小区域中的点组，并且对于每个点组，x和y坐标值都是偏移的，因为点组的重心可能是原点，从而将这些值转换为偏移点组。对每个偏移点组进行离散傅立叶变换以确定傅立叶系数序列，并且将傅立叶系数序列根据数字水印数据改变为水印傅里叶系数序列。对水印傅里叶系数序列进行离散傅里叶逆变换，以产生水印复杂序列，以确定满足水印复杂序列的埋藏引起的坐标误差公差的最佳水印埋藏强度。在最优埋藏强度的基础上，傅里叶系数序列再次变化为水印傅立叶系数序列。水印傅立叶系数序列被逆向偏移到水印点组数据中。

2. 发明申请

WO2003005357A1 METHOD FOR PROTECTING CONTENT STORED ON AN INFORMATION CARRIER 审中-公开
标题翻译：保护存储在信息载体上的内容的方法
公开(公告)号：WO2003005357A1
公开(公告)日：2003-01-16
申请号：PCT/IB2002/002741
申请日：2002-07-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BRONDIJK, Robert, A. , MAES, Maurice, J., J., J-B.
发明人： BRONDIJK, Robert, A. , MAES, Maurice, J., J., J-B.
IPC分类号： G11B20/00
CPC分类号： H04N5/913 , G11B19/122 , G11B20/00086 , G11B20/00884 , H04N1/32144 , H04N1/3216 , H04N5/85 , H04N2005/91328 , H04N2005/91335
摘要： The invention relates to a method for protecting content comprising embedded copy protection data stored on an information carrier (1). In order to avoid that a user illegally circumvents a copy protection mechanism such as a watermark protecting said content to get an illegal access to said content, a method comprising the following steps is proposed: - reading content from or writing content to the information carrier in response to an access command, - storing said content in a memory, - continuing to read content from or to write content to the information carrier and accumulating (211, 212) said content in said memory until enough content is stored therein to extract and evaluate said copy protection data.
摘要翻译：本发明涉及一种保护内容的方法，包括存储在信息载体（1）上的嵌入式复制保护数据。为了避免用户非法规避诸如保护所述内容的水印等复制保护机制以获得对所述内容的非法访问，提出了一种包括以下步骤的方法： - 从内容中读取内容或将信息写入信息载体响应于访问命令， - 将所述内容存储在存储器中， - 继续从内容读取内容或向内容写入信息载体，并在所述存储器中累积（211,212）所述内容，直到其中存储足够的内容以提取和评估说复制保护数据。

3. 发明申请

WO01099292A2 PERCEPTUAL MODELING OF MEDIA SIGNALS BASED ON LOCAL CONTRAST AND DIRECTIONAL EDGES 审中-公开
标题翻译：基于本地对比和方向边界的媒体信号的概念建模
公开(公告)号：WO01099292A2
公开(公告)日：2001-12-27
申请号：PCT/US2001/019303
申请日：2001-06-14
IPC分类号： G06T1/00 , H04B
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 (100), 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. By comparing the local image strength of various directionally filtered various of the image, the model creates a directional control vector (110). The model takes into account the local contrast (106) of the image and the directional control vector to create a gain vector.
摘要翻译：感知模型对媒体信号（100）进行分析，例如图像或音频信号。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。通过比较各种定向滤波的各种图像的局部图像强度，模型创建方向控制向量（110）。该模型考虑了图像的局部对比度（106）和方向控制向量以产生增益矢量。

4. 发明申请

WO2010064333A1 IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS 审中-公开
标题翻译：图像处理方法和图像处理装置
公开(公告)号：WO2010064333A1
公开(公告)日：2010-06-10
申请号：PCT/JP2008/072722
申请日：2008-12-08
申请人： KABUSHIKI KAISHA TOSHIBA , YAMAGUCHI, Takashi , MIKI, Takeo , MIYAZAKI, Kenji
发明人： YAMAGUCHI, Takashi , MIKI, Takeo , MIYAZAKI, Kenji
IPC分类号： H04N1/387 , B41J2/325 , B41J29/46
CPC分类号： H04N1/32309 , G03G15/507 , G03G21/043 , H04N1/00005 , H04N1/00015 , H04N1/00023 , H04N1/00031 , H04N1/00047 , H04N1/0005 , H04N1/00063 , H04N1/00076 , H04N1/29 , H04N1/3216
摘要： An image processing apparatus (100) inspects an image printed on a recording medium (105) or an intermediate transfer body. In the image processing apparatus (100), a synthesizing portion (103) creates synthetic image information in which information is synthesized with main image information in a visible state which can be perceived with the human eyes, in an invisible state which is hard to perceive with the human eyes. A print portion (104) prints the synthetic image information created by the synthesizing portion (103) on a medium and an inspection image input portion (106) reads a synthetic image printed on the recording medium or the intermediate transfer body as an inspection image. The extracting portion (107) carries out an extraction processing of extracting information synthesized with the main image information in the inspection image inputted by the inspection image input portion (106) and a fault determining portion (108) determines a fault of the image printed on the recording medium or the intermediate transfer body, based on an extraction result of the information by the extracting portion (107).
摘要翻译：图像处理装置（100）检查印刷在记录介质（105）或中间转印体上的图像。在图像处理装置（100）中，合成部（103）创建合成图像信息，其中以与人眼可感知的可见状态的主图像信息合成为难以察觉的不可见状态与人的眼睛。打印部分（104）将由合成部分（103）创建的合成图像信息打印在介质上，检查图像输入部分（106）读取印刷在记录介质或中间转印体上的合成图像作为检查图像。提取部分（107）执行在由检查图像输入部分（106）输入的检查图像中提取与主图像信息合成的信息的提取处理，并且故障确定部分（108）确定打印在图像上的图像的故障记录介质或中间传送体，基于提取部分（107）的信息的提取结果。

5. 发明申请

WO2002091374A1 WATERMARKING 审中-公开
标题翻译：水印
公开(公告)号：WO2002091374A1
公开(公告)日：2002-11-14
申请号：PCT/IB2002/001405
申请日：2002-04-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： KALKER, Antonius, A., C., M. , HAITSMA, Jaap, A. , VAN DER VEEN, Minne , BRUEKERS, Alphons, A., M., L.
IPC分类号： G11B20/00
CPC分类号： H04H20/31 , G06T1/0028 , G06T2201/0202 , G11B20/00086 , G11B20/00884 , G11B20/00891 , H04N1/32154 , H04N1/3216 , H04N2201/3236
摘要： Disclosed is a non-frame-based method and an arrangement for embedding a watermark in an information signal (x(n)), e.g. an audio signal. The method comprises calculating (101) a non-cyclic convolution of the information signal with a watermark signal (v(n)) and combining (102) the convolution with the information signal. The non-cyclic convolution may be calculated by overlapped Fast Fourier transform filtering.
摘要翻译：公开了一种基于非帧的方法和用于在信息信号（x（n））中嵌入水印的装置）。音频信号。该方法包括：计算（101）信息信号与水印信号（v（n））的非循环卷积，并将卷积与信息信号组合（102）。可以通过重叠的快速傅立叶变换滤波来计算非循环卷积。

6. 发明申请

WO2002065753A1 METHOD AND ARRANGEMENT FOR DETECTING A WATERMARK IN AN INFORMATION SIGNAL 审中-公开
标题翻译：用于检测信息信号中的水印的方法和装置
公开(公告)号：WO2002065753A1
公开(公告)日：2002-08-22
申请号：PCT/IB2002/000414
申请日：2002-02-11
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , KALKER, Antonius, A., C., M.
发明人： KALKER, Antonius, A., C., M.
IPC分类号： H04N1/32
CPC分类号： H04N5/913 , G06T1/0071 , G11B20/00086 , G11B20/00884 , H04N1/32149 , H04N1/3216 , H04N1/32293 , H04N1/32304 , H04N21/8358 , H04N2005/91335
摘要： A pseudo-symmetric watermark is watermark pattern that is built up from a finite number of basic pattern by tiling. The well-known WaterCast pattern that is built up from one single pattern is a special case of this, and is referred to as a symmetric watermark pattern. It is well known that symmetric patterns allow an efficient detection method that consist of two phases, viz. first an accumulation phase, followed by a cyclic sliding correlation with the basic pattern over the accumulated data. The invention provides a detection method for pseudo-symmetric watermarks with a similar reduction in complexity as with symmetric watermarks, i.e. an accumulation phase followed by one or more cyclic sliding correlation steps (using the finite number of basic patterns). Let W 1 , ...., W N be the set of basic patterns, all of size M. The suspect signal is folded (31) as if there was only a single basic pattern. The fold buffer will have the sum pattern W = W 1 + .... + W N (39) as a strong component. The presence of the watermark can then be detected by a cyclic sliding correlating with W.
摘要翻译：伪对称水印是通过平铺从有限数量的基本模式构建的水印图案。由单一图案构成的众所周知的WaterCast图案是一种特殊情况，被称为对称水印图案。众所周知，对称模式允许一个由两个阶段组成的有效检测方法，即首先是累积阶段，其次是与累积数据之间的基本模式的循环滑动相关。本发明提供了一种具有与对称水印相似的复杂度降低的伪对称水印的检测方法，即累积阶段后跟一个或多个循环滑动相关步骤（使用有限数量的基本模式）。令W1，...，WN为基本模式集，大小为M.可疑信号被折叠（31），就好像只有一个基本模式一样。折叠缓冲区将具有总和模式W = W1 + .... + WN（39）作为强分量。然后可以通过与W相关的循环滑动来检测水印的存在。

7. 发明申请

WO01057868A1 EMBEDDING A WATERMARK IN AN INFORMATION SIGNAL 审中-公开
标题翻译：在信息信号中嵌入水印
公开(公告)号：WO01057868A1
公开(公告)日：2001-08-09
申请号：PCT/EP2001/000356
申请日：2001-01-12
IPC分类号： G11B20/00 , G11B20/10 , H04N5/913
CPC分类号： G11B20/00891 , G11B20/00086 , G11B20/10527 , H04N1/3216 , H04N2005/91335
摘要： Disclosed is a method and an arrangement for embedding a watermark in an information signal, in particular an audio signal. The method is based on modification of the magnitude (not the phase) of Fourier coefficients and does not require the original signal for detection. The embedder divides (10) the signal into frames of a given length, and subjects each frame to a Fast Fourier Transform (11). The Fourier coefficients X(k) are modified (20,21) as a function of a predetermined secret watermark W. A payload (P) is encoded in the embedded watermark by cyclically shifting (41) the watermark W by a number (v) of samples representing said payload.
摘要翻译：公开了一种用于在信息信号中特别是音频信号中嵌入水印的方法和装置。该方法基于傅立叶系数的幅度（而不是相位）的修改，并且不需要用于检测的原始信号。嵌入器将（10）信号划分成给定长度的帧，并将每帧进行快速傅里叶变换（11）。傅立叶系数X（k）作为预定的秘密水印W的函数被修改（20,21）。通过将水印W循环移位数字（v），将有效载荷（P）编码在嵌入的水印中，表示所述有效载荷的样本。

8. 发明申请

WO01054053A1 TRANSFORM DOMAIN ALLOCATION FOR MULTIMEDIA WATERMARKING 审中-公开
标题翻译：用于多媒体水印的变换域分配
公开(公告)号：WO01054053A1
公开(公告)日：2001-07-26
申请号：PCT/US2001/002280
申请日：2001-01-24
IPC分类号： G06T1/00 , G10L19/018 , H04N1/32 , H04N7/26 , G06K9/00 , G06K9/36 , H04L9/00
CPC分类号： H04N19/467 , G06T1/0078 , G06T2201/0052 , G10L19/018 , H04N1/3216 , H04N1/3217 , H04N1/32187 , H04N1/32192 , H04N1/32197 , H04N21/23892 , H04N21/8358 , H04N2201/3233 , H04N2201/327
摘要： A watermark applied to audio, image, video or multimedia data can serve to verify the authenticity of the data. For the watermark to be imperceptible, e.g. invisible or inaudible, it is inserted into selected parts of the data that are neither significant nor insignificant perceptually. Examples for the domain of embedding are complex Fourier coefficients and wavelet coefficients. A frequency spectral representation of the data is obtained, preferably a complex Fourier transform, and the watermark is inserted into those frequencies whose variance lies in a range between two thresholds, minimal and maximal. In the Fourier transform the block size is large enough for the components to be approximately Gaussian. The resultant watermarked spectral data is subjected to an inverse transform to produce the watermarked data.
摘要翻译：应用于音频，图像，视频或多媒体数据的水印可用于验证数据的真实性。为了使水印不可察觉，例如，不可见或听不到的，被插入数据的选定部分，这些数据既不重要也不微不足道。嵌入领域的例子是复数傅里叶系数和小波系数。获得数据的频谱表示，优选地进行复数傅立叶变换，并且将水印插入到这些频率中的方差位于两个阈值之间，最小和最大的范围内的频率中。在傅里叶变换中，块大小足够大，以使各部件近似为高斯。对所得水印的频谱数据进行逆变换以产生水印数据。

9. 发明申请

WO01018752A1 A TECHNIQUE FOR WATERMARKING AN IMAGE AND A RESULTING "WATERMARKED" IMAGE 审中-公开
标题翻译：用于水印图像和结果“水印”图像的技术
公开(公告)号：WO01018752A1
公开(公告)日：2001-03-15
申请号：PCT/US2000/022749
申请日：2000-08-18
IPC分类号： G06T1/00 , H04N1/32
CPC分类号： G06T1/005 , G06T2201/0052 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32187 , H04N2201/3236
摘要： Apparatus and an accompanying method, for generating a "watermarked" image; for subsequently detecting that watermark in a test image; and the watermarked image so formed. First, pixel values for a non-marked image are transformed, into a series of transform coefficients. A set of pseudo-random perturbation values is determined, such that all these values collectively satisfy a plurality of different mathematical constraints. These perturbation values are then added to the transform coefficients. Resulting perturbed coefficients are then inversely transformed to form the watermarked image. To detect the watermark a plurality of different mathematical tests are then used, in conjunction with the perturbation values.
摘要翻译：用于生成“水印”图像的装置和附带方法; 用于随后在测试图像中检测该水印; 并且如此形成的水印图像。首先，将未标记图像的像素值变换为一系列变换系数。确定一组伪随机扰动值，使得所有这些值共同满足多个不同的数学约束。然后将这些扰动值加到变换系数中。然后产生的扰动系数被逆变换以形成水印图像。为了检测水印，然后结合扰动值使用多个不同的数学测试。

10. 发明申请

WO00063647A2 METHOD OF DETECTING A WATERMARK IN DIGITAL IMAGES 审中-公开
标题翻译：在数字图像中检测水印的方法
公开(公告)号：WO00063647A2
公开(公告)日：2000-10-26
申请号：PCT/IT2000/000132
申请日：2000-04-10
IPC分类号： G06T1/00 , H04N1/32 , G01D
CPC分类号： G06T1/0064 , G06T1/0078 , G06T2201/0065 , H04N1/00005 , H04N1/00037 , H04N1/32154 , H04N1/3216 , H04N1/32309
摘要： A description is given of a method of detecting the presence of a watermark in a digital image, comprising the following steps: acquiring the digital image; obtaining from the digital image, by the application of a transform, a matrix of coefficients of a transform; selecting a group of said coefficients; determining a detection function (L) which is dependent on the watermark which is to be detected in said digital image; calculating the value of said detection function for the selected coefficients of said matrix of coefficients; determining whether or not the digital image includes said watermark according to the calculated value of said detection function (L).
摘要翻译：给出了一种在数字图像中检测水印的存在的方法的描述，包括以下步骤：获取数字图像; 从数字图像获得，通过应用变换，变换的系数矩阵; 选择一组所述系数; 确定取决于要在所述数字图像中检测的水印的检测函数（L）; 计算所述系数矩阵的所选系数的所述检测函数的值; 根据所述检测函数（L）的计算值，确定数字图像是否包括所述水印。

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