公开(公告)号：US08462389B2

公开(公告)日：2013-06-11

申请号：US12405737

申请日：2009-03-17

Applicant: Vishal Monga ,  Shen-Ge Wang ,  Raja Bala

Inventor： Vishal Monga ,  Shen-Ge Wang ,  Raja Bala

IPC: H04N1/405

CPC classification number: H04N1/6033

Abstract: A method and system is disclosed for characterizing a color scanner comprising generating a halftone-independent target of color patches, printing the target on a color hardcopy device, measuring the target to obtain device-independent color values, scanning the target to obtain scanner color values, and building a scanner profile that relates scanned color values to device-independent color values.

Abstract translation: 公开了一种用于表征彩色扫描仪的方法和系统，该彩色扫描仪包括产生色调不依赖于色块的目标，在彩色硬拷贝装置上打印目标，测量目标以获得与装置无关的色彩值，扫描目标以获得扫描仪颜色值 ，并构建扫描仪配置文件，将扫描的颜色值与设备无关的颜色值相关联。

公开(公告)号：US08460781B2

公开(公告)日：2013-06-11

申请号：US11758344

申请日：2007-06-05

Applicant: Reiner Eschbach ,  Raja Bala ,  Martin S Maltz

Inventor： Reiner Eschbach ,  Raja Bala ,  Martin S Maltz

IPC: B41F31/00

CPC classification number: B41M3/144 ,  B42D25/382 ,  C09D11/037 ,  H04N1/32149 ,  H04N2201/327 ,  H04N2201/3271 ,  Y10T428/24802

Abstract: The teachings as provided herein relate to a watermark embedded in an image that has the property of being relatively indecipherable under normal light, and yet decipherable under infrared illumination when viewed by a suitable infrared sensitive device. This infrared mark entails, a substrate reflective to infrared radiation, and a first colorant mixture and second colorant mixture printed as an image upon the substrate. The first colorant mixture layer in connection with the substrate has a property of strongly reflecting infrared illumination, as well as a property of low contrast under normal illumination against a second colorant mixture as printed in close spatial proximity to the first colorant mixture pattern, such that the resultant image rendered substrate suitably exposed to an infrared illumination, will yield a discernable image evident as a infrared mark to a suitable infrared sensitive device.

Abstract translation: 本文提供的教导涉及嵌入在图像中的水印，其具有在正常光线下相对不可破译的性质，并且在由合适的红外敏感设备观看时在红外照明下可解码。 该红外线标记需要反射红外辐射的基板，以及作为图像印刷在基板上的第一着色剂混合物和第二着色剂混合物。 与基底相关的第一着色剂混合物层具有强烈反射红外照明的性质，以及在正常照射下对第二着色剂混合物的低对比度的性质，其与第一着色剂混合物图案紧密相邻地印刷，使得 适当地暴露于红外照明的所得到的图像渲染基板将产生作为适合的红外敏感装置的红外标记显而易见的可识别图像。

公开(公告)号：US20130129152A1

公开(公告)日：2013-05-23

申请号：US13458464

申请日：2012-04-27

Applicant: Jose Antonio RODRIGUEZ SERRANO ,  Aaron Michael Burry ,  Harsimrat Sandhawalia ,  Craig Saunders ,  Vladimir Kozitsky ,  Abu Islam ,  John Deppen ,  Raja Bala

Inventor： Jose Antonio RODRIGUEZ SERRANO ,  Aaron Michael Burry ,  Harsimrat Sandhawalia ,  Craig Saunders ,  Vladimir Kozitsky ,  Abu Islam ,  John Deppen ,  Raja Bala

IPC: G06K9/00

CPC classification number: G06K9/6255 ,  G06K9/00791 ,  G06K9/325 ,  G06K2209/15

Abstract: In response to determining that a target vehicle is at large, identification information associated with the target vehicle's license plate may be retrieved and used to generate one or more synthetic license plate images. The synthetic license plate images may be subjected to one or more transformation to cause them to resemble authentic license plate image captures and/or to mimic authentic license plate image captures from existing and operational ALPR system cameras. Target signatures may then be calculated from the synthetic license plate images. Upon capturing an authentic license plate image using an ALPR system camera, a signature of the authentic license plate image may be calculated. If a match is found between the signature of the authentic license plate image and a target signature, law enforcement may be alerted that the target vehicle was detected at the location of the ALPR system camera.

Abstract translation: 响应于确定目标车辆很大，可以检索与目标车辆牌照相关联的识别信息并用于生成一个或多个合成车牌图像。 合成车牌图像可能经受一个或多个变换，使其类似于真实的车牌图像捕获和/或模拟来自现有和可操作的ALPR系统相机的真实车牌图像捕获。 然后可以从合成车牌图像计算目标签名。 在使用ALPR系统摄像机拍摄真实车牌图像时，可以计算真实车牌图像的签名。 如果在真实车牌图像的签名和目标签名之间发现匹配，则可以警告在ALPR系统相机的位置处检测到目标车辆的执法。

公开(公告)号：US08314978B2

公开(公告)日：2012-11-20

申请号：US12356897

申请日：2009-01-21

Applicant: Vishal Monga ,  Shen-Ge Wang ,  Raja Bala

Inventor： Vishal Monga ,  Shen-Ge Wang ,  Raja Bala

IPC: H04N1/46

CPC classification number: H04N1/6033 ,  H04N1/4078

Abstract: A model-based halftone independent method for characterizing a printer equipped with a plural of halftone screens comprises: printing a target set of basic patches comprised of a fundamental binary pattern independent of a halftone screen; measuring true color printer response from the target set; modeling a halftone independent characterization of the printer with the mathematical transformation using the measured response; modeling a first halftone dependent characterization of the printer with the mathematical transformer to generate a first predicted result using a selected halftone screen; comparing a measured response of the printer using the halftone screen with the predicted result to define a correction factor corresponding to the halftone screen; and modeling a halftone dependent characterization of the printer using a predicted response of the fundamental binary pattern and the correction factor.

Abstract translation: 用于表征配备有多个半色调网版的打印机的基于模型的半色调独立方法包括：打印由基本二进制图案独立于半色调屏幕组成的基本色块的目标集合; 测量来自目标组的真彩打印机响应; 使用测量响应的数学变换建模打印机的半色调独立表征; 使用数学变压器对打印机的第一半色调依赖特征进行建模，以使用所选择的半色调屏幕产生第一预测结果; 将使用半色调屏幕的打印机的测量响应与预测结果进行比较，以定义对应于半色调屏幕的校正因子; 以及使用基本二进制模式和校正因子的预测响应对打印机的半色调依赖特征进行建模。

公开(公告)号：US08310718B2

公开(公告)日：2012-11-13

申请号：US12404877

申请日：2009-03-16

Applicant: Edward Chapman ,  Reiner Eschbach ,  Shen-Ge Wang ,  Raja Bala

Inventor： Edward Chapman ,  Reiner Eschbach ,  Shen-Ge Wang ,  Raja Bala

IPC: H04N1/60 ,  H04N1/40

CPC classification number: H04N1/60 ,  B41M3/148

Abstract: A method for defining a gloss effect in a printed document includes printing a document region with first and second colorant combinations. The first colorant combination defines a first colorant stack height and said second colorant combination defines a second colorant stack height that differs from the first colorant stack height. As such, the document region has a first appearance when viewed straight-on and a second appearance when viewed at an angle. In one example, the first colorant combination is black (K) colorant that results in a one-level stack height and the second colorant combination is cyan, magenta, and yellow (CMY) colorants that result in a three-level stack height. In another example, the second colorant combination can be cyan, magenta, yellow and black (CMYK) colorants that define a four-level stack height. In such case, both colorant combinations appear as black in straight-on viewing or scanning, while the average color and/or luminance of the colorant combinations will differ from each other when the document region is viewed at an oblique angle. The desired gloss font or other gloss effect is defined by selective placement of the first and second colorant combinations relative to each other. Font sizes of 3 points or less can be defined.

Abstract translation: 用于在印刷文档中定义光泽效果的方法包括用第一和第二着色剂组合打印文档区域。 第一着色剂组合限定第一着色剂堆叠高度，并且所述第二着色剂组合限定与第一着色剂堆叠高度不同的第二着色剂堆叠高度。 因此，当从一角度观看时，原稿区域具有直视时的第一外观和第二外观。 在一个实例中，第一着色剂组合是导致一级堆叠高度的黑色（K）着色剂，并且第二着色剂组合是导致三级堆叠高度的青色，品红色和黄色（CMY）着色剂。 在另一个实例中，第二着色剂组合可以是限定四级堆叠高度的青色，品红色，黄色和黑色（CMYK）着色剂。 在这种情况下，两种着色剂组合在直视观察或扫描中显示为黑色，而当以倾斜角度观看原稿区时，着色剂组合的平均颜色和/或亮度将彼此不同。 通过相对于彼此选择性地放置第一和第二着色剂组合来限定期望的光泽字体或其它光泽效果。 可以定义3点或更少的字体大小。

公开(公告)号：US08249340B2

公开(公告)日：2012-08-21

申请号：US12396202

申请日：2009-03-02

Applicant: Vishal Monga ,  Raja Bala

Inventor： Vishal Monga ,  Raja Bala

IPC: G06K9/36

CPC classification number: H04N1/46

Abstract: A dimensionality reduction method and system for efficient color transform compression is disclosed. A multi-dimensional color transform with an n-dimensional input color space can be received. A projection operator can be derived and applied to the n-dimensional input color space to form a k-dimensional input color space. A functional approximation can be designed to the n-dimensional input color space and can be evaluated on the k-dimensional input color space to form an m-dimensional output color space. The projection operator and the approximation function can be combined to form a compressed transform by mapping the n-dimensional input color space to m-dimensional output color space. Such an approach provides a significant reduction in size of the color profile with respect to storage and speeds-up real-time computation.

Abstract translation: 公开了一种用于高效率色彩变换压缩的维数降低方法和系统。 可以接收具有n维输入颜色空间的多维颜色变换。 可以导出投影算子并将其应用于n维输入颜色空间以形成k维输入颜色空间。 可以将功能近似设计为n维输入颜色空间，并且可以在k维输入颜色空间上进行评估以形成m维输出颜色空间。 通过将n维输入颜色空间映射到m维输出颜色空间，投影算子和近似函数可以组合形成压缩变换。 这种方法提供了相对于存储和加速实时计算的颜色特征图的大小的显着减小。

公开(公告)号：US20120146991A1

公开(公告)日：2012-06-14

申请号：US12964820

申请日：2010-12-10

Applicant: Raja Bala ,  Zhigang Fan ,  Reiner Eschbach ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman

Inventor： Raja Bala ,  Zhigang Fan ,  Reiner Eschbach ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman

IPC: G06T15/00

CPC classification number: G06T11/60 ,  G06T15/04 ,  G06T19/00

Abstract: As set forth herein, a computer-implemented method facilitates replacing text on cylindrical or curved surfaces in images. For instance, the user is first asked to perform a multi-click selection of a polygon to bound the text. A triangulation scheme is carried out to identify the pixels. Segmentation and erasing algorithms are then applied. The ellipses are estimated accurately through constrained least squares fitting. A 3D framework for rendering the text, including the central projection pinhole camera model and specification of the cylindrical object, is generated. These parameters are jointly estimated from the fitted ellipses as well as the two vertical edges of the cylinder. The personalized text is wrapped around the cylinder and subsequently rendered.

Abstract translation: 如本文所述，计算机实现的方法有助于在图像中的圆柱形或弯曲表面上替换文本。 例如，首先要求用户执行多边形的多点选择以绑定文本。 进行三角测量方案来识别像素。 然后应用分割和擦除算法。 通过约束最小二乘拟合精确估计椭圆。 生成用于呈现文本的3D框架，包括中心投影针孔相机模型和圆柱形对象的规格。 这些参数是从安装的椭圆以及气缸的两个垂直边缘共同估计的。 个性化文字包裹在圆柱体上并随后呈现。

公开(公告)号：US08064637B2

公开(公告)日：2011-11-22

申请号：US12191721

申请日：2008-08-14

Applicant: Raja Bala ,  Reiner Eschbach ,  Yonghui Zhao

Inventor： Raja Bala ,  Reiner Eschbach ,  Yonghui Zhao

IPC: G06K9/00

CPC classification number: G06K9/38 ,  G06K2009/0059 ,  G06K2209/01 ,  G06T7/11 ,  G06T7/155 ,  G06T7/194 ,  G06T2207/10008 ,  G06T2207/20036 ,  G07D7/005

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08064100B2

公开(公告)日：2011-11-22

申请号：US12329082

申请日：2008-12-05

Applicant: Karen M. Braun ,  Raja Bala ,  Robert P. Loce

Inventor： Karen M. Braun ,  Raja Bala ,  Robert P. Loce

IPC: H04N1/44 ,  H04N1/52 ,  H04N1/56 ,  G06K15/02 ,  B41M3/10 ,  G07D7/12

CPC classification number: H04N1/32309 ,  H04N1/32352 ,  H04N2201/327 ,  H04N2201/3271 ,  Y10S283/902

Abstract: A system is employed to reveal a watermark in a document. A watermark generator is utilized to select the placement and at least one colorant combination of an image and at least one colorant combination for a watermark on a document, where the at least one colorant combination of the image and the watermark form a metameric pair. A printing system receives data from the watermark generator and places the image and the watermark on the document. A decoder comprising a narrow band illumination element is selected or tuned to a wavelength corresponding to the colorant combinations utilized by the printing system to reveal the watermark placed thereon.

Abstract translation: 采用系统在文档中显示水印。 使用水印生成器来选择图像的至少一种着色剂组合和用于文档上的水印的至少一种着色剂组合，其中图像和水印的至少一种着色剂组合形成同色异体对。 打印系统从水印生成器接收数据，并将图像和水印放置在文档上。 包括窄带照明元件的解码器被选择或调谐到与由打印系统使用的着色剂组合相对应的波长以显示其上放置的水印。

公开(公告)号：US08035855B2

公开(公告)日：2011-10-11

申请号：US12024208

申请日：2008-02-01

Applicant: Vishal Monga ,  Raja Bala

Inventor： Vishal Monga ,  Raja Bala

IPC: G06F15/00

CPC classification number: G06K9/00442

Abstract: What is provided herein is a method for automatically selecting a subset of pages from a multi-page document for image processing wherein each selected page is substantially different from all other pages according to certain features of interest and wherein the combined content of the selected pages approximately represents the content in the entire document. Selected pages are clustered wherein each page is represented by a feature vector meaningfully related to the task to be performed. A matrix of feature vectors is analyzed. Basis vectors are extracted from the matrix using rank-reduction techniques. Clustering is performed by subspace projection of page features onto the basis vectors with each page being assigned to a cluster to which that page maximally projects. Representative pages are selected from each cluster. The representative pages can then be used as input to a secondary process.

Abstract translation: 这里提供的是用于从用于图像处理的多页文档中自动选择页面子集的方法，其中根据感兴趣的某些特征，每个所选择的页面与所有其他页面基本不同，并且其中所选择的页面的组合内容大约 表示整个文档中的内容。 所选页面被聚集，其中每个页面由与要执行的任务有意义相关的特征向量表示。 分析特征向量矩阵。 使用秩降低技术从矩阵中提取基础向量。 通过将页面特征的子空间投影到基本向量上执行聚类，每个页面被分配给该页面最大程度投射到的群集。 从每个群集中选择代表页面。 然后可以将代表性页面用作次要过程的输入。