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1. 发明申请

US20180213112A1 DOCUMENT PRINTING USING HARDWARE-INDEPENDENT PATTERN INK CELLS 审中-公开
公开(公告)号：US20180213112A1
公开(公告)日：2018-07-26
申请号：US15412328
申请日：2017-01-23
申请人： Xerox Corporation
发明人： Edward N. Chapman
IPC分类号： H04N1/32 , G06K15/02
CPC分类号： H04N1/32197 , G06K15/1813 , G06K15/1836 , H04N1/32219 , H04N1/32251 , H04N1/32352
摘要： A system prints a document using a device-independent pattern ink cell that is appropriate for the print device. The system does this by identifying an object in a print job corresponding to a security element that identifies a pattern ink cell for a color parameter. The system then defines a device-independent pattern ink cell for rendering the identified object. The definition of the device-independent pattern ink cell includes at least one scaling routine for adjusting a parameter of the device-independent pattern ink cell based on a resolution of a print device that will be used for printing the document. The system then queries and receives from a print system a device resolution of the print device, executes the at least one scaling routine to transform the device-independent pattern ink cell to yield a device-dependent pattern ink cell, and generates a print using the device-dependent pattern ink cell.

2. 发明授权

US09521291B2 Feature-based watermark localization in digital capture systems 有权
标题翻译：数字捕获系统中基于特征的水印定位
公开(公告)号：US09521291B2
公开(公告)日：2016-12-13
申请号：US14332739
申请日：2014-07-16
申请人： Digimarc Corporation
发明人： Vojtech Holub , Tomas Filler
IPC分类号： G06K9/00 , H04N1/32 , G06T1/00
CPC分类号： G06T1/005 , G06K9/66 , G06T2201/0065 , G06T2201/0601 , H04N1/32154 , H04N1/32197 , H04N1/32352
摘要： The present disclosures relates generally to digital watermarking and data hiding. One claim recites a method comprising: obtaining data representing captured imagery, the captured imagery depicting packaging including digital watermarking, the digital watermarking including an orientation signal that is detectable in a transform domain; generating a n-dimensional feature set of the data representing captured imagery, the n-dimensional feature set representing the captured imagery in a spatial domain, where n is an integer great than 13; using a trained classifier to predict the presence of the orientation signal in a transform domain from the feature set in the spatial domain. Of course, other claims and combinations are provided too.
摘要翻译：本公开一般涉及数字水印和数据隐藏。一个权利要求描述了一种方法，包括：获得表示所捕获的图像的数据，所捕获的图像描绘包括数字水印的包装，所述数字水印包括在变换域中可检测的取向信号; 生成表示所捕获图像的数据的n维特征集，所述n维特征集表示在空间域中捕获的图像，其中n是大于13的整数; 使用经过训练的分类器来预测来自空间域中的特征集的变换域中的取向信号的存在。当然，也提供其他权利要求和组合。

3. 发明申请

US20150125026A1 Method for Inserting a Watermark in an Image and Corresponding Method for Detecting a Watermark in an Image to be Analyzed 有权
标题翻译：在图像中插入水印的方法和用于检测要分析的图像中的水印的相应方法
公开(公告)号：US20150125026A1
公开(公告)日：2015-05-07
申请号：US14378502
申请日：2013-02-12
申请人： Centre National De La Recherche Scientifique-CNRS , Universite De Nantes
发明人： Florent Autrusseau
IPC分类号： G06T1/00 , H04N1/32
CPC分类号： G06T1/0064 , G06T2201/0052 , G06T2201/0064 , G06T2201/0601 , H04N1/3216 , H04N1/32197 , H04N1/3232 , H04N1/32352
摘要： A method is provided for inserting a digital watermark in an image by an insertion device. Inserting includes: applying a Fourier transform to the image, delivering a 2D Fourier spectrum; inserting the watermark in the Fourier spectrum delivering a modified Fourier spectrum; and applying an inverse Fourier transform to the modified Fourier spectrum delivering a watermarked image. The watermark includes a set of watermarking coefficients each associated with a distinct determined position of a given quadrant among the quadrants of the Fourier domain, the spectral coordinates u and v of which, measured along the two axes of coordinates of the given quadrant and starting from the continuous component and expressed in percentage of the dimensions U and V of the given quadrant, are such that: u>66%×U and v>66%×V. The set of positions associated with the watermarking coefficients defines a convex pattern in the given quadrant.
摘要翻译：提供了一种通过插入装置将数字水印插入到图像中的方法。插入包括：对图像应用傅里叶变换，传送2D傅里叶谱; 在提供修改的傅立叶频谱的傅立叶频谱中插入水印; 以及将逆傅立叶变换应用于递送水印图像的经修改的傅立叶频谱。水印包括一组水印系数，每个水印系数与傅立叶域的象限中的给定象限的不同确定位置相关联，其分布坐标u和v沿着给定象限的两个坐标轴测量，并从连续分量并以给定象限的尺寸U和V的百分比表示，使得：u> 66％×U且v> 66％×V。与水印系数相关联的位置集合定义给定象限中的凸形图案。

4. 发明申请

US20120300976A1 IMAGE PROCESSING DEVICE, IMAGE GENERATION DEVICE, IMAGE PROCESSING METHOD, AND IMAGE GENERATION METHOD 有权
标题翻译：图像处理装置，图像生成装置，图像处理方法和图像生成方法
公开(公告)号：US20120300976A1
公开(公告)日：2012-11-29
申请号：US13479369
申请日：2012-05-24
申请人： Yoshiyasu TANAKA , Takaaki YAMADA , Yuzo OSHIDA
发明人： Yoshiyasu TANAKA , Takaaki YAMADA , Yuzo OSHIDA
IPC分类号： G06K9/62 , G06K9/00
CPC分类号： H04N1/32165 , H04N1/32197 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N1/32299 , H04N1/32304 , H04N1/32309 , H04N1/32315 , H04N21/8358 , H04N21/8456
摘要： An embodiment of this invention is an image processing device, including: a sectioning unit for sectioning an image into a plurality of sections to be processed; and a classification unit for classifying the plurality of sections to be processed into at least a clarification-processing-adapted area for embedding a latent image into the image, and an obfuscation-processing-adapted area for embedding a digital watermark into the image based on a characteristic of the image.
摘要翻译：本发明的一个实施例是一种图像处理装置，包括：分割单元，用于将图像分割成待处理的多个部分; 以及分类单元，用于将要处理的多个部分分类为至少一个用于将潜像嵌入到图像中的澄清处理适应区域，以及用于将数字水印嵌入到图像中的混淆处理适配区域，基于图像的特征。

5. 发明授权

US08050452B2 Quantization-based data embedding in mapped data 有权
标题翻译：基于量化的数据嵌入映射数据
公开(公告)号：US08050452B2
公开(公告)日：2011-11-01
申请号：US12849726
申请日：2010-08-03
申请人： Brett Alan Bradley , John Stach
发明人： Brett Alan Bradley , John Stach
IPC分类号： H04K1/00
CPC分类号： G10L19/032 , G06T1/0064 , G06T2201/0061 , G06T2201/0601 , G10L19/018 , H04N1/32187 , H04N1/32197 , H04N1/3232
摘要： Novel methods and systems for quantization based data embedding and reading in host signals, such as image, audio and video signals. To embed auxiliary data in a host signal, an embedder maps the host signal from a first domain into a mapped signal in a second domain. The embedder performs quantization based embedding of auxiliary data into the host signal using quantizers. The quantizers are adapted such that the relationship between corresponding quantizers in the first and second domains satisfies a predetermined constraint. The mapping improves the robustness of the data embedding method by increasing the chances that the embedded data can be recovered by an auxiliary data reader after modifications. A related embedding method projects the mapped signal unto a vector, and specifically, a pseudorandom vector. It performs quantization based embedding on the projected signal. The use of this projection provides added robustness of the embedded data to noise and other forms of distortion.
摘要翻译：用于基于量化的数据嵌入和读取在主机信号中的新方法和系统，例如图像，音频和视频信号。为了将辅助数据嵌入主机信号中，嵌入器将来自第一域的主机信号映射到第二域中的映射信号。嵌入器使用量化器对辅助数据进行基于量化的嵌入主机信号。调整量化器，使得第一和第二域中相应的量化器之间的关系满足预定的约束。该映射通过增加在修改之后辅助数据读取器可以恢复嵌入数据的机会来改善数据嵌入方法的鲁棒性。相关的嵌入方法将映射的信号投影到向量，具体地说，是伪随机向量。它对投影信号执行基于量化的嵌入。使用这种投影可以增加嵌入数据对噪声和其他形式的失真的鲁棒性。

6. 发明授权

US09886733B2 Watermarking digital images to increase bit depth 有权
公开(公告)号：US09886733B2
公开(公告)日：2018-02-06
申请号：US15206606
申请日：2016-07-11
申请人： GoPro, Inc.
发明人： Balineedu Chowdary Adsumilli
IPC分类号： G06T1/00 , H04N19/467 , H04N5/262 , H04N1/32 , H04N1/21
CPC分类号： G06T1/0028 , G06T1/005 , G06T2201/0052 , G06T2201/0202 , H04N1/2112 , H04N1/32197 , H04N1/32251 , H04N1/32277 , H04N1/32309 , H04N5/2621 , H04N19/467 , H04N2201/0084 , H04N2201/3233
摘要： Watermark data is converted to watermark coefficients, which may be embedded in an image by converting the image to a frequency domain, embedding the watermark in image coefficients corresponding to medium-frequency components, and converting the modified coefficients to the spatial domain. The watermark data is extracted from the modified image by converting the modified image to a frequency domain, extracting the watermark coefficients from the image coefficients, and determining the watermark data from the watermark coefficients. The watermark data may be truncated image data bits such as truncated least significant data bits. After extraction from the watermark, the truncated image data bits may be combined with data bits representing the original image to increase the bit depth of the image. Watermark data may include audio data portions corresponding to a video frame, reference frames temporally proximate to a video frame, high-frequency content, sensor calibration information, or other image data.

7. 发明授权

US09418396B2 Watermarking digital images to increase bit depth 有权
标题翻译：水印数字图像以增加位深度
公开(公告)号：US09418396B2
公开(公告)日：2016-08-16
申请号：US14598132
申请日：2015-01-15
申请人： GoPro, Inc.
发明人： Balineedu Chowdary Adsumilli
IPC分类号： G06T1/00 , H04N1/32 , H04N5/262 , H04N1/21
CPC分类号： G06T1/0028 , G06T1/005 , G06T2201/0052 , G06T2201/0202 , H04N1/2112 , H04N1/32197 , H04N1/32251 , H04N1/32277 , H04N1/32309 , H04N5/2621 , H04N19/467 , H04N2201/0084 , H04N2201/3233
摘要： Watermark data is converted to watermark coefficients, which may be embedded in an image by converting the image to a frequency domain, embedding the watermark in image coefficients corresponding to medium-frequency components, and converting the modified coefficients to the spatial domain. The watermark data is extracted from the modified image by converting the modified image to a frequency domain, extracting the watermark coefficients from the image coefficients, and determining the watermark data from the watermark coefficients. The watermark data may be truncated image data bits such as truncated least significant data bits. After extraction from the watermark, the truncated image data bits may be combined with data bits representing the original image to increase the bit depth of the image. Watermark data may include audio data portions corresponding to a video frame, reference frames temporally proximate to a video frame, high-frequency content, sensor calibration information, or other image data.
摘要翻译：水印数据被转换为水印系数，其可以通过将图像转换为频域而嵌入到图像中，将水印嵌入对应于中频分量的图像系数中，并将修改的系数转换为空间域。通过将修正图像转换为频域，从图像系数中提取水印系数，并根据水印系数确定水印数据，从修改图像中提取水印数据。水印数据可以是截断的图像数据位，例如截断的最低有效数据位。在从水印提取之后，截断的图像数据位可以与表示原始图像的数据位组合，以增加图像的位深度。水印数据可以包括对应于视频帧的音频数据部分，时间上靠近视频帧的参考帧，高频内容，传感器校准信息或其他图像数据。

8. 发明申请

US20150030201A1 FEATURE-BASED WATERMARK LOCALIZATION IN DIGITAL CAPTURE SYSTEMS 有权
标题翻译：数字捕获系统中基于特征的水标定位
公开(公告)号：US20150030201A1
公开(公告)日：2015-01-29
申请号：US14332739
申请日：2014-07-16
申请人： Digimarc Corporation
发明人： Vojtech Holub , Tomas Filler
IPC分类号： G06K9/66 , H04N1/32 , G06K9/62 , G06T1/00
CPC分类号： G06T1/005 , G06K9/66 , G06T2201/0065 , G06T2201/0601 , H04N1/32154 , H04N1/32197 , H04N1/32352
摘要： The present disclosures relates generally to digital watermarking and data hiding. One claim recites a method comprising: obtaining data representing captured imagery, the captured imagery depicting packaging including digital watermarking, the digital watermarking including an orientation signal that is detectable in a transform domain; generating a n-dimensional feature set of the data representing captured imagery, the n-dimensional feature set representing the captured imagery in a spatial domain, where n is an integer great than 13; using a trained classifier to predict the presence of the orientation signal in a transform domain from the feature set in the spatial domain. Of course, other claims and combinations are provided too.
摘要翻译：本公开一般涉及数字水印和数据隐藏。一个权利要求描述了一种方法，包括：获得表示所捕获的图像的数据，所捕获的图像描绘包括数字水印的包装，所述数字水印包括在变换域中可检测的取向信号; 生成表示所捕获图像的数据的n维特征集，所述n维特征集表示在空间域中捕获的图像，其中n是大于13的整数; 使用经过训练的分类器来预测来自空间域中的特征集的变换域中的取向信号的存在。当然，也提供其他权利要求和组合。

9. 发明授权

US08938088B2 Method and apparatus for classifying sections of an image into a plurality of embedded areas 有权
标题翻译：将图像的区段分类为多个嵌入区域的方法和装置
公开(公告)号：US08938088B2
公开(公告)日：2015-01-20
申请号：US13479369
申请日：2012-05-24
申请人： Yoshiyasu Tanaka , Takaaki Yamada , Yuzo Oshida
发明人： Yoshiyasu Tanaka , Takaaki Yamada , Yuzo Oshida
IPC分类号： G06K9/00 , H04N1/32 , H04N21/8358 , H04N21/845
CPC分类号： H04N1/32165 , H04N1/32197 , H04N1/32203 , H04N1/32208 , H04N1/32229 , H04N1/32251 , H04N1/32299 , H04N1/32304 , H04N1/32309 , H04N1/32315 , H04N21/8358 , H04N21/8456
摘要： An embodiment of this invention is an image processing device, including: a sectioning unit for sectioning an image into a plurality of sections to be processed; and a classification unit for classifying the plurality of sections to be processed into at least a clarification-processing-adapted area for embedding a latent image into the image, and an obfuscation-processing-adapted area for embedding a digital watermark into the image based on a characteristic of the image.
摘要翻译：本发明的一个实施例是一种图像处理装置，包括：分割单元，用于将图像分割成待处理的多个部分; 以及分类单元，用于将要处理的多个部分分类为至少一个用于将潜像嵌入到图像中的澄清处理适应区域，以及用于将数字水印嵌入到图像中的混淆处理适配区域，基于图像的特征。

10. 发明申请

US20080285790A1 GENERALIZED LOSSLESS DATA HIDING USING MULTIPLE PREDICTORS 审中-公开
标题翻译：使用多个预测器的通用无损数据隐藏
公开(公告)号：US20080285790A1
公开(公告)日：2008-11-20
申请号：US11750591
申请日：2007-05-18
申请人： Oscar Chi Lim Au , Shu Kei Yip
发明人： Oscar Chi Lim Au , Shu Kei Yip
IPC分类号： G06K9/00
CPC分类号： G06T1/0028 , G06T2201/0051 , G06T2201/0052 , G06T2201/0083 , G06T2201/0203 , H04N1/32187 , H04N1/32197 , H04N1/32229 , H04N1/32347
摘要： A system and methodology for encoding or decoding hidden data, such as a digital watermark, in visual raster media is provided. The lossless data hiding methodology uses multiple predictors to choose an embedding location to be either a low variance region or a high variance region. Bijective mirror mapping is used to encode hidden data at an embedding location and bijective pixel value shifting is performed to ensure reversibility back to the original image without additional information. The system and methodology can be used either in the spatial domain or the wavelet domain. The Peak Signal to Noise Ratio and the payload capacity are relatively high with the methodology.
摘要翻译：提供了用于在视觉光栅介质中编码或解码诸如数字水印的隐藏数据的系统和方法。无损数据隐藏方法使用多个预测器来选择嵌入位置为低方差区域或高方差区域。双目镜映射用于在嵌入位置对隐藏数据进行编码，并执行双射像素值移位，以确保无原始图像的可逆性，无需附加信息。系统和方法可以在空间域或小波域中使用。峰值信噪比和有效负载能力相对较高。

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