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91. 发明授权

US07835033B2 Gamut boundary separated print system profiling methods and systems 有权
标题翻译：色域边界分离打印系统分析方法和系统
公开(公告)号：US07835033B2
公开(公告)日：2010-11-16
申请号：US12019940
申请日：2008-01-25
申请人： Raja Bala , Martin S. Maltz , Lalit Keshav Mestha , Alvaro Enrique Gil
发明人： Raja Bala , Martin S. Maltz , Lalit Keshav Mestha , Alvaro Enrique Gil
IPC分类号： G06F15/00
CPC分类号： G06F15/00 , H04N1/6058
摘要： This disclosure provides a method and system to generate device dependent color space representations for an image output device. The method and system are particularly applicable to a printing device, where gamut boundary separated profile methods are executed to map device in-gamut and device out-of-gamut colors.
摘要翻译：本公开提供了一种用于为图像输出设备生成依赖于设备的色彩空间表示的方法和系统。该方法和系统特别适用于打印设备，其中执行色域边界分离的轮廓方法来对设备进行色域内和设备色域外的颜色映射。

92. 发明授权

US07800785B2 Methodology for substrate fluorescent non-overlapping dot design patterns for embedding information in printed documents 有权
标题翻译：用于在印刷文件中嵌入信息的底物荧光非重叠点设计模式的方法
公开(公告)号：US07800785B2
公开(公告)日：2010-09-21
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： H04N1/405
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。

93. 发明授权

US07768671B2 Color image gamut enhancement preserving spatial variation 有权
标题翻译：彩色图像色域增强保留空间变化
公开(公告)号：US07768671B2
公开(公告)日：2010-08-03
申请号：US11522739
申请日：2006-09-18
申请人： Raja Bala , Michael Branciforte , Reiner Eschbach
发明人： Raja Bala , Michael Branciforte , Reiner Eschbach
IPC分类号： H04N1/60 , G03F3/08
CPC分类号： H04N1/6058
摘要： An image characterized by an original image gamut is received in an imaging device characterized by a device gamut. The original image gamut is enhanced to a first set of modified color values that occupy a greater fraction of the device gamut than the original image gamut. The modified color values of each pixel are mapped to new color values within the device gamut.
摘要翻译：以原始图像色域为特征的图像被接收在以设备色域为特征的成像设备中。原始图像色域被增强为占原始图像色域的设备色域的更大部分的第一组修改的颜色值。每个像素的修改颜色值被映射到设备色域内的新颜色值。

94. 发明授权

US07733478B2 Gray balance calibration of an imaging system 有权
标题翻译：成像系统的灰度平衡校准
公开(公告)号：US07733478B2
公开(公告)日：2010-06-08
申请号：US12258368
申请日：2008-10-24
申请人： Robert M. VanDuyn , Raja Bala
发明人： Robert M. VanDuyn , Raja Bala
IPC分类号： G01J1/10
CPC分类号： H04N1/6033
摘要： One aspect of the disclosure is directed to a calibration system. The calibration system includes an imaging device including a predetermined print engine capable of being calibrated and a calibration sheet. The calibration sheet includes at least one visible calibration reference region including a given mix of pre-selected reference colorants printed in the calibration reference region on the calibration sheet. The pre-selected reference colorants have been previously printed on the printable calibration sheet using a different imaging device that is different than the given imaging device and that has the same print engine as the given imaging device. The calibration sheet includes freshly printable target regions on the calibration sheet. The given imaging device is configured to enter into the calibration mode, wherein the given imaging device is configured to freshly print a mix of colorants corresponding to the pre-selected reference colorants onto at least one of the target regions.
摘要翻译：本公开的一个方面涉及校准系统。校准系统包括成像装置，其包括能够被校准的预定打印引擎和校准片。校准片材包括至少一个可见的校准参考区域，其包括打印在校准片材上的校准参考区域中的预先选择的参考着色剂的给定混合物。预先选择的参考着色剂已经使用与给定成像装置不同的不同的成像装置预先印刷在可印刷的校准片上，并且具有与给定的成像装置相同的印刷引擎。校准页在校准页上包括新鲜可打印的目标区域。给定的成像装置被配置为进入校准模式，其中给定的成像装置被配置为将对应于预先选择的参考着色剂的着色剂的混合物新鲜地打印到至少一个目标区域上。

95. 发明授权

US07688470B2 System and method for color calibration incorporating gray-component replacement using black value and intermediate color variable input 失效
标题翻译：使用黑色值和中间色彩可变输入的包含灰色成分替换的颜色校准的系统和方法
公开(公告)号：US07688470B2
公开(公告)日：2010-03-30
申请号：US11613861
申请日：2006-12-20
申请人： Vishal Monga , Raja Bala
发明人： Vishal Monga , Raja Bala
IPC分类号： H04N1/60
CPC分类号： H04N1/6022
摘要： Disclosed are systems and methods for color calibration incorporating gray-component replacement, and more particularly, controlling gray component replacement in a color output device by applying a pre-defined transformation to a plurality of non-black channels to obtain at least one intermediate variable, and determining at least one output black (K) value from both the black channel input value and the intermediate variable, in order to provide control of gray component replacement in the color output device.
摘要翻译：公开了用于颜色校准的系统和方法，其包括灰分分量替换，更具体地，通过将预定义的变换应用于多个非黑色通道来获得至少一个中间变量来控制彩色输出设备中的灰度分量替换，以及从所述黑色通道输入值和所述中间变量两者确定至少一个输出黑色（K）值，以便提供所述颜色输出装置中的灰色成分替换的控制。

96. 发明授权

US07652808B2 Spatially varying luminance compression gamut mapping system and method 有权
标题翻译：空间变化的亮度压缩色域映射系统和方法
公开(公告)号：US07652808B2
公开(公告)日：2010-01-26
申请号：US10733608
申请日：2003-12-11
申请人： Raja Bala
发明人： Raja Bala
IPC分类号： G03F3/00 , G06K1/00 , G06K9/00 , G06K9/36
CPC分类号： H04N1/6027 , H04N1/6072
摘要： A system and method for gamut mapping includes a luminance compression algorithm for gamut mapping that varies across different parts of the image. In shadow regions, a soft compression function is applied to bring out the detail. In other regions, including areas with high local contrast, a hard clipping function is applied to preserve local contrast. The algorithm adaptively blends between these two functions to ensure that the overall compression function is spatially smooth. The system and method may also use chrominance information to compute “perceived lightness”, to be used as input to the low-pass filter. Also, the blending function α( ) could be a function of chrominance as well as luminance.
摘要翻译：用于色域映射的系统和方法包括在图像的不同部分上变化的色域映射的亮度压缩算法。在阴影区域，应用软压缩功能来显示细节。在其他区域，包括局部对比度较高的区域，应用硬切割功能来保持局部对比度。该算法自适应地融合了这两个功能，以确保整体压缩功能在空间上平滑。该系统和方法还可以使用色度信息来计算“感知亮度”，以用作低通滤波器的输入。此外，混合函数alpha（）可以是色度以及亮度的函数。

97. 发明申请

US20090237682A1 PRINTER CHARACTERIZATION FOR UV ENCRYPTION APPLICATIONS 有权
标题翻译： UV加密应用的打印机特性
公开(公告)号：US20090237682A1
公开(公告)日：2009-09-24
申请号：US12052909
申请日：2008-03-21
申请人： Raja Bala , Yonghui Zhao
发明人： Raja Bala , Yonghui Zhao
IPC分类号： G06F3/12
CPC分类号： H04N1/6033
摘要： The appearance of a color print viewed under UV illumination is predicted using a target comprising color patches each printed using a known coverage of printer colorant(s). In one case, the target is illuminated using a UV light source and an electronic image of the target is captured using a digital camera or the like. In another case, a spectrophotometer is used both with and without a UV cutoff filter to measure the target. The captured image data or the spectrophotometric measurements are used to derive a UV printer characterization model that relates any arbitrary combination of printer colorants to a predicted UV color appearance value. Metameric colorant mixture pairs for visible light and UV light viewing can be determined using the UV model together with a conventional visible light printer characterization model. A visual matching task is used to determine a correction factor for the UV printer characterization model.
摘要翻译：在UV照射下观察的彩色印刷品的外观使用包括使用已知的打印机着色剂覆盖印刷的各种色块的目标进行预测。在一种情况下，使用UV光源照射目标，并且使用数字照相机等捕获目标的电子图像。在另一种情况下，使用分光光度计来测量目标。捕获的图像数据或分光光度测量用于得出将打印机着色剂的任意任意组合与预测的UV颜色外观值相关联的UV打印机表征模型。可以使用UV模型和传统的可见光打印机表征模型来确定用于可见光和UV光观察的Metameric着色剂混合物对。使用视觉匹配任务来确定UV打印机表征模型的校正因子。

98. 发明申请

US20090195796A1 AUTOMATIC SELECTION OF A SUBSET OF REPRESENTATIVE PAGES FROM A MULTI-PAGE DOCUMENT 有权
标题翻译：从多页文档自动选择代表页的子页面
公开(公告)号：US20090195796A1
公开(公告)日：2009-08-06
申请号：US12024208
申请日：2008-02-01
申请人： VISHAL MONGA , Raja Bala
发明人： VISHAL MONGA , Raja Bala
IPC分类号： G06F15/00
CPC分类号： G06K9/00442
摘要： 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.
摘要翻译：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。

99. 发明授权

US07486416B2 Inter-separation decorrelator 有权
标题翻译：分离间去相干器
公开(公告)号：US07486416B2
公开(公告)日：2009-02-03
申请号：US11143818
申请日：2005-06-02
申请人： Edul N. Dalal , Wencheng Wu , Robert P. Loce , Raja Bala , Yeqing Zhang , Norman W. Zeck
发明人： Edul N. Dalal , Wencheng Wu , Robert P. Loce , Raja Bala , Yeqing Zhang , Norman W. Zeck
IPC分类号： H04N1/60 , H04N1/04 , G03F3/08 , G06K15/00 , G06K9/00
CPC分类号： H04N1/6038 , H04N1/6041
摘要： Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spatially dependent single colorant compensating functions for compensating for the other aspects of the spatially dependent colorant appearance nonuniformities may also be determined. Image data is processed through the decorrelating function, thereby generating colorant values that are compensated for spatially dependent colorant interaction effects. Optionally, image data is also processed through the spatially dependent single colorant compensating functions, thereby generating colorant values that are compensated for both aspects of colorant appearance nonuniformities. The two kinds of compensating functions may be determined, calibrated and/or stored at different spatial and temporal frequencies or resolutions. One or both of the compensating functions may be employed to maintain consistency across a plurality of rendering devices (e.g., marking engines).
摘要翻译：从空间依赖的着色剂外观不均匀性的其他方面鉴定和分离空间依赖性着色剂相互作用效应。确定用于补偿所识别的空间依赖着色剂相互作用效应的去相关函数。还可以确定用于补偿空间依赖着色剂外观不均匀性的其它方面的空间依赖性单色剂补偿功能。图像数据通过去相关功能进行处理，从而产生对空间依赖的着色剂相互作用效应进行补偿的着色剂值。可选地，还通过空间依赖的单一着色剂补偿功能来处理图像数据，由此产生着色剂值，其对着色剂外观不均匀性的两个方面进行补偿。可以在不同的空间和时间频率或分辨率下确定，校准和/或存储两种补偿功能。可以采用一种或两种补偿功能来保持多个渲染设备（例如，标记引擎）之间的一致性。

100. 发明申请

US20080299333A1 SUBSTRATE FLUORESCENT NON-OVERLAPPING DOT PATTERNS FOR EMBEDDING INFORMATION IN PRINTED DOCUMENTS 有权
标题翻译：印刷文件中嵌入信息的基板荧光非重叠图案
公开(公告)号：US20080299333A1
公开(公告)日：2008-12-04
申请号：US11754702
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： B44F1/00
CPC分类号： B42D25/387 , B41M3/144 , B42D25/00 , B42D25/29 , B42D25/333 , Y10T428/24802
摘要： 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 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，其具有在正常光线下相对不可解译的性质，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。

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