专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US07764403B2 Watermarking 有权
标题翻译：水印
公开(公告)号：US07764403B2
公开(公告)日：2010-07-27
申请号：US11634657
申请日：2006-12-06
申请人： Robert P. Loce , Raja Bala , Karen M. Braun
发明人： Robert P. Loce , Raja Bala , Karen M. Braun
IPC分类号： H04N1/40 , H04N1/60
CPC分类号： H04N1/32309 , H04N1/32299
摘要： Extended colorant sets are used to hide data or provide a watermark in printed images. Extended set colorants are colorants other than, and in addition to, the standard or common subtractive primary colorants: cyan, magenta, yellow and/or black. Where the extended colorant set supports a plurality of colorant recipes for rendering a given color, watermark data is used to select a colorant recipe from the plurality. As the watermark data to be encoded in the image changes state with image position, alternate colorant recipes or colorant selection functions are selected. The image is rendered based on the alternate colorant recipe selections. Watermark information is encoded in the colorant recipe or colorant selection function selection. Use of the extended colorant sets allows information to be encoded even in portions of an image having colors that do not include a neutral component.
摘要翻译：扩展着色剂集合用于隐藏数据或在打印图像中提供水印。扩展的定色着色剂是除了标准或普通的减色原色着色剂之外的除了以外的着色剂：青色，品红色，黄色和/或黑色。在延伸着色剂组支持用于渲染给定颜色的多个着色剂配方的情况下，使用水印数据从多个中选择着色剂配方。当图像中要编码的水印数据用图像位置改变状态时，选择着色剂配方或着色剂选择功能。基于备选着色剂配方选择渲染图像。水印信息在着色剂配方或着色剂选择功能选择中进行编码。使用扩展着色剂组允许即使在具有不包括中性成分的颜色的图像的部分中也可以对信息进行编码。

12. 发明授权

US07639401B2 Camera-based method for calibrating color displays 失效
标题翻译：用于校准彩色显示器的基于相机的方法
公开(公告)号：US07639401B2
公开(公告)日：2009-12-29
申请号：US11012994
申请日：2004-12-15
申请人： Raja Bala , Karen M. Braun , Robert J. Rolleston
发明人： Raja Bala , Karen M. Braun , Robert J. Rolleston
IPC分类号： H04N1/46 , G06K9/00
CPC分类号： H04N1/6033 , H04N9/3194
摘要： Provided herein are teachings directed to overcoming the problem of erroneous color reproduction on a color output device such as a color display. The teachings herein provide a method for correcting color image data input to a display device by displaying a target of color patches of known input values on the display device, and capturing an image of the target with a digital camera. This is followed by extracting camera signals from the image which corresponds to the color patches, and deriving a tone response calibration for the projector from the camera signals and the input values.
摘要翻译：这里提供的是旨在克服彩色显示器等彩色输出装置上的错误色彩再现问题的教导。本文的教导提供了一种通过在显示装置上显示已知输入值的色标目标并用数字照相机捕获目标图像来校正输入到显示装置的彩色图像数据的方法。然后从相应于色块的图像中提取相机信号，并根据相机信号和输入值导出投影机的色调响应校准。

13. 发明授权

US07639260B2 Camera-based system for calibrating color displays 失效
标题翻译：用于校准彩色显示器的基于摄像机的系统
公开(公告)号：US07639260B2
公开(公告)日：2009-12-29
申请号：US11012993
申请日：2004-12-15
申请人： Raja Bala , Karen M. Braun , Robert J. Rolleston
发明人： Raja Bala , Karen M. Braun , Robert J. Rolleston
IPC分类号： G03F3/08 , G09G5/00 , G09G5/06 , G06K9/00 , G06K9/40 , G06T1/00 , H04N1/46 , H04N1/60
CPC分类号： H04N1/6033 , H04N9/3194 , H04N9/69 , H04N17/02 , H04N17/04
摘要： Provided herein are teachings directed to overcoming the problem of erroneous color reproduction on a color output device such as a color display. The teachings herein provide a system and apparatus for correcting color image data input to a display device by displaying a target of color patches of known input values on the display device, and capturing an image of the target with a digital camera. This is followed by extracting camera signals from the image which correspond to the color patches, and deriving a tone response calibration for the projector from the camera signals and the input values.
摘要翻译：这里提供的是旨在克服彩色显示器等彩色输出装置上的错误色彩再现问题的教导。本文的教导提供了一种系统和装置，用于通过在显示装置上显示已知输入值的色块的目标，并用数字照相机捕获目标的图像来校正输入到显示装置的彩色图像数据。然后从相应于色块的图像中提取相机信号，并根据相机信号和输入值导出投影机的色调响应校准。

14. 发明授权

US07215817B2 System and method for digital watermarking in a calibrated printing path 有权
公开(公告)号：US07215817B2
公开(公告)日：2007-05-08
申请号：US10644342
申请日：2003-08-20
申请人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
发明人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
IPC分类号： G06K9/36 , G06K9/00
CPC分类号： G06K9/36 , H04N1/32309 , H04N1/32352
摘要： What is disclosed is a decoding method for retrieving information bits encoded in a printed image comprising the steps of first receiving an input electronic image as a scanned version of the printed image. A region of interest in the image is then extracted and, for that region, an amount of K colorant present, denoted KH; is obtained. Further, a color value is generated therefrom and the GCR used for encoding that region is determined using KH and the obtained color value. Encoded information bits are retrieved therefrom based on the determined GCR. The estimated KH is preferably evaluated conditional to a capacity signal KL and a luminance signal L. From the obtained data, values of KH, KL, and L, are derived wherein KH is estimated from a high resolution scan, and KL and L are estimated from a down-scaled image, respectively. The capacity signal KL and the luminance signal L are derived from the obtained color value. Further, the capacity signal, KL is derived by first applying a suitable operator S to reduce the image from scanner resolution to the watermark resolution and then converting the obtained color values to CMY estimates such that KL=min(C,M,Y) Alternatively, K-capacity is derived from the amount, KL, y, comprises first converting the obtained color values to CMY estimates and applying a suitable operator S to reduce the image from scanner resolution to the watermark resolution such that KL=min(S(C),S(M),S(Y)); wherein L is described by a linear combination of scan signals RGB, such that L=k1S(R)+k2S(G)+k3S(B). The value of KH is determined by first converting the obtained color values to CMY estimates. The estimates determine K-colorant amount at each pixel such that: K=min(C,M,Y). A suitable operator S is applied to reduce the image from scanner resolution to the watermark resolution.

15. 发明授权

US07070252B2 System and method for digital watermarking in a calibrated printing path 失效
标题翻译：校准打印路径中数字水印的系统和方法
公开(公告)号：US07070252B2
公开(公告)日：2006-07-04
申请号：US10644472
申请日：2003-08-20
申请人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
发明人： Ricardo L. de Queiroz , Robert P. Loce , Karen M. Braun , Raja Bala
IPC分类号： B41J2/205 , G06F15/00
CPC分类号： B41J2/205 , H04N1/32144 , H04N1/32251 , H04N1/32267 , H04N1/32309
摘要： What is disclosed is a method for digital watermarking in a calibrated printing path and comprises: first receiving a pixel possessing color values from an input image; receiving a plurality of information bits to be encoded at a corresponding pixel in an output image. Then, one of at least two different GCR functions are selected where the selection is based on the state of the received information bits. The number of GCR functions to be selected from is dependent on the number of possible states of the information bits intended to be encoded at each image pixel and preferably equals the number of states of the information bits intended to be encoded at each image pixel such that the GCR spatially varies across the output image. Further, at least two GCR functions are optimized to carry information and information bits intended to be encoded within the output image are represented with a tag. CMYK values are then generated using the selected GCR function and the color values. These CMYK values are assigned to a corresponding pixel in the output image. The information bits to be encoded at a given pixel indicate the type of object to which that pixel belongs, such as: graphics, picture, text, line art, etc. The output image, when printed, exhibits the property that substantially similar colors occurring at different spatial locations in the input image are produced with substantially different CMYK combinations in the print. Preferably, a parameterized function is used for the GCR function and the encoded state sets the parameter of the function. Information bits should be redundantly encoded throughout the output image. Regions that cannot be encoded by GCR information have to be compensated for. A reference mark is applied on the output image to indicate the starting point and order of the information sequence.
摘要翻译：所公开的是在校准打印路径中进行数字水印的方法，包括：首先从输入图像接收具有颜色值的像素; 在输出图像中的相应像素处接收要编码的多个信息比特。然后，选择至少两个不同的GCR功能中的一个，其中选择基于所接收的信息比特的状态。要选择的GCR功能的数量取决于要在每个图像像素处被编码的信息比特的可能状态的数量，并且优选地等于要在每个图像像素处编码的信息比特的状态数，使得 GCR在输出图像之间空间变化。此外，至少两个GCR功能被优化以携带信息，并且用标签表示旨在在输出图像内编码的信息位。然后使用所选的GCR功能和颜色值生成CMYK值。这些CMYK值被分配给输出图像中的相应像素。在给定像素处要编码的信息位指示像素所属于的对象的类型，例如：图形，图片，文本，线条等。输出图像在打印时表现出基本相似的颜色出现的属性在输入图像中的不同空间位置处，在打印中以基本不同的CMYK组合产生。优选地，GCR函数使用参数化函数，编码状态设置函数的参数。信息位应在整个输出图像中进行冗余编码。不能由GCR信息编码的区域必须得到补偿。在输出图像上应用参考标记来指示信息序列的起点和顺序。

16. 发明授权

US09892585B2 Magnetic watermarking of a printed substrate by metameric rendering 有权
公开(公告)号：US09892585B2
公开(公告)日：2018-02-13
申请号：US12546848
申请日：2009-08-25
申请人： Reiner Eschbach , Martin S. Maltz , Raja Bala , Yonghui Zhao
发明人： Reiner Eschbach , Martin S. Maltz , Raja Bala , Yonghui Zhao
IPC分类号： B32B3/10 , G07D7/04 , G07D7/005
CPC分类号： G07D7/04 , G07D7/005 , Y10T428/24835
摘要： A document may include a non-magnetic substrate, a first colorant mixture printed as a first image upon the substrate, the first colorant mixture including a magnetic ink, and a second colorant mixture printed as a second image upon the substrate in substantially close spatial proximity to the printed first colorant mixture. The second colorant mixture may consist essentially of one or more non-magnetic inks and exhibit properties of both low visual contrast and high magnetic contrast against the first colorant mixture, such that the resultant printed substrate does not reveal the first image to the human eye, but will reveal the first image to a magnetic image reader.

17. 发明授权

US08064637B2 Decoding of UV marks using a digital image acquisition device 有权
标题翻译：使用数字图像采集装置对UV标记进行解码
公开(公告)号：US08064637B2
公开(公告)日：2011-11-22
申请号：US12191721
申请日：2008-08-14
申请人： Raja Bala , Reiner Eschbach , Yonghui Zhao
发明人： Raja Bala , Reiner Eschbach , Yonghui Zhao
IPC分类号： G06K9/00
CPC分类号： G06K9/38 , G06K2009/0059 , G06K2209/01 , G06T7/11 , G06T7/155 , G06T7/194 , G06T2207/10008 , G06T2207/20036 , G07D7/005
摘要： A method and system for identifying a fluorescence mark in a printed document includes using an image acquisition device to derive an input digital image. For each pixel of at least one of the input image color channels, the gray value is adjusted to define a filtered digital image including a plurality of pixels each defined by an adjusted gray value. A binary image is derived that that represents the filtered digital image. The binary image includes a binary representation of the fluorescence mark and a binary representation of the background. At least one morphological operation is performed on the binary image. An ASCII character for the binary representation of the fluorescence mark (or each constituent character thereof) is derived and compared to a known security code to authenticate the printed document.
摘要翻译：用于识别打印文档中的荧光标记的方法和系统包括使用图像获取装置来导出输入数字图像。对于输入图像颜色通道中的至少一个的每个像素，调整灰度值以定义包括由调整的灰度值定义的多个像素的滤波数字图像。导出二进制图像，其表示经过滤的数字图像。二进制图像包括荧光标记的二进制表示和背景的二进制表示。对二进制图像进行至少一个形态操作。导出用于荧光标记（或其每个构成字符）的二进制表示的ASCII字符，并将其与已知的安全代码进行比较，以验证打印文档。

18. 发明申请

US20110052888A1 MAGNETIC WATERMARKING OF A PRINTED SUBSTRATE BY METAMERIC RENDERING 有权
标题翻译：通过分层渲染的印刷底材的磁水印
公开(公告)号：US20110052888A1
公开(公告)日：2011-03-03
申请号：US12546848
申请日：2009-08-25
申请人： Reiner Eschbach , Martin S. Maltz , Raja Bala , Yonghui Zhao
发明人： Reiner Eschbach , Martin S. Maltz , Raja Bala , Yonghui Zhao
IPC分类号： B32B3/10 , B05D5/06
CPC分类号： G07D7/04 , G07D7/005 , Y10T428/24835
摘要： A document may include a non-magnetic substrate, a first colorant mixture printed as a first image upon the substrate, the first colorant mixture including a magnetic ink, and a second colorant mixture printed as a second image upon the substrate in substantially close spatial proximity to the printed first colorant mixture. The second colorant mixture may consist essentially of one or more non-magnetic inks and exhibit properties of both low visual contrast and high magnetic contrast against the first colorant mixture, such that the resultant printed substrate does not reveal the first image to the human eye, but will reveal the first image to a magnetic image reader.
摘要翻译：文件可以包括非磁性基底，在基底上印刷为第一图像的第一着色剂混合物，第一着色剂混合物包括磁性墨水，以及以基本上接近的空间接近度印刷在基底上的第二图像的第二着色剂混合物到印刷的第一着色剂混合物。第二着色剂混合物可以基本上由一种或多种非磁性油墨组成，并表现出对第一着色剂混合物的低视觉对比度和高磁性对比度的性质，使得所得到的印刷基材不会向人眼露出第一图像，但会将第一张图像显示给磁性图像阅读器。

19. 发明申请

US20080297851A1 METHODOLOGY FOR SUBSTRATE FLUORESCENT NON-OVERLAPPING DOT DESIGN PATTERNS FOR EMBEDDING INFORMATION IN PRINTED DOCUMENTS 有权
标题翻译：用于印刷文件中嵌入信息的基板荧光非重叠设计图案的方法
公开(公告)号：US20080297851A1
公开(公告)日：2008-12-04
申请号：US11754733
申请日：2007-05-29
申请人： Raja Bala , Reiner Eschbach , Shen-Ge Wang , Yonghui Zhao
发明人： Raja Bala , Reiner Eschbach , Shen-Ge Wang , Yonghui Zhao
IPC分类号： G06K15/00
CPC分类号： B41M3/144
摘要： The teachings as provided herein relate to a watermark embedded in an image, and methodology for same, that has the property of being relatively indecipherable under normal light, and yet decipherable under UV light. This fluorescent mark comprises a substrate containing optical brightening agents, and a first dot design printed as an image upon the substrate. The first dot design has as a characteristic, the property of strongly suppressing substrate fluorescence. A second dot design having a property of providing a differing level of substrate fluorescence suppression from that of the first dot design such that when rendered in close spatial proximity with the first dot design image print, the resultant image rendered substrate suitably exposed to an ultra-violet light source, will yield a discernable image evident as a fluorescent mark.
摘要翻译：本文提供的教导涉及嵌入在图像中的水印及其方法，其具有在正常光线下相对不可破译的性质，并且在UV光下可解码。该荧光标记包括含有荧光增白剂的基材和在基材上作为图像印刷的第一点设计。第一个点设计具有强烈抑制底物荧光的特性。具有提供与第一点设计不同程度的底物荧光抑制的性质的第二点设计，使得当与第一点设计图像打印紧密地空间接近时，所得到的图像渲染衬底适当地暴露于超紫色光源，将产生明显的可辨别图像作为荧光标记。

20. 发明申请

US20130027421A1 LANGUAGE-BASED COLOR CALIBRATION OF DISPLAYS 有权
标题翻译：基于语言的显示颜色校准
公开(公告)号：US20130027421A1
公开(公告)日：2013-01-31
申请号：US13193955
申请日：2011-07-29
申请人： Raja Bala , Karen M. Braun , Robert J. Rolleston , George A. Gibson
发明人： Raja Bala , Karen M. Braun , Robert J. Rolleston , George A. Gibson
IPC分类号： G09G5/02
CPC分类号： G09G5/02 , G01J3/463 , G01J3/506 , G09G3/006 , G09G2320/0606 , G09G2320/0666 , G09G2320/0693 , H04N1/6033 , H04N1/6038 , H04N9/68 , H04N9/69 , H04N17/02 , H04N17/04
摘要： Described herein is a method of calibrating displays (or printers) using Natural Language-based commands. The exemplary method provides an easy-to-use solution to the common methods of color calibrating a display. Instead of using sliders or manual controls for the individual dimensions of a three-dimensional color problem, the user is able to make adjustments via natural language commands, such as “make reference patch less purple.” The method does not require the user to understand color mixing technology when making separate R, G, and B adjustments to match a specified patch. A user can easily express the necessary color adjustment in natural language terms, making the process simpler and faster.
摘要翻译：这里描述的是使用基于自然语言的命令校准显示器（或打印机）的方法。该示例性方法为对显示器进行颜色校准的常见方法提供了易于使用的解决方案。用户可以通过自然语言命令进行调整，而不是使用滑块或手动控制三维颜色问题的各个维度，例如让参考补丁更少的紫色。当进行单独的R，G和B调整以匹配指定的补丁时，该方法不需要用户了解混色技术。用户可以轻松地以自然语言表达必要的颜色调整，使过程更简单快捷。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式