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91. 发明授权

US07911652B2 Methods and systems for determining banding compensation parameters in printing systems 失效
标题翻译：确定打印系统中条带补偿参数的方法和系统
公开(公告)号：US07911652B2
公开(公告)日：2011-03-22
申请号：US11222260
申请日：2005-09-08
申请人： Nancy B. Goodman , Robert P. Loce , William J. Nowak , Howard A. Mizes , Peter Paul , Beilei Xu , Wencheng Wu , Jack Lestrange
发明人： Nancy B. Goodman , Robert P. Loce , William J. Nowak , Howard A. Mizes , Peter Paul , Beilei Xu , Wencheng Wu , Jack Lestrange
IPC分类号： G06T5/00
CPC分类号： B41J29/393 , G03G15/5062 , G03G2215/00067
摘要： A test target is written in a non image zone at set time intervals. The test target is sensed. At least one of frequency, amplitude and phase of banding, which is inherent in a printing device, is determined based on the sensed test target. At least one banding compensation parameter based at least on one of the determined frequency, amplitude and phase of banding is determined. Characteristics of producing an image based on the determined banding compensation parameter are adjusted to compensate the banding inherent in the printing device.
摘要翻译：测试目标以设定的时间间隔写入非图像区域。感测测试目标。基于感测的测试目标来确定打印设备中固有的条带的频率，幅度和相位中的至少一个。确定至少一个带状补偿参数，至少基于所确定的条带的频率，振幅和相位之一。调整基于确定的条带补偿参数产生图像的特性，以补偿打印装置固有的条带。

92. 发明授权

US07864364B2 Color correction of images 失效
标题翻译：图像颜色校正
公开(公告)号：US07864364B2
公开(公告)日：2011-01-04
申请号：US11199692
申请日：2005-08-09
申请人： Yeqing Zhang , Robert P. Loce , Raja Bala
发明人： Yeqing Zhang , Robert P. Loce , Raja Bala
IPC分类号： G03F3/08 , G06F15/00
CPC分类号： H04N1/6027
摘要： A color transformation method which accounts for colorant interactions includes establishing a plurality of tone reproduction curves (TRCs), for one or more of the color separations forming a digital image. Each TRC accounts for colorant interactions between a primary colorant with which the first color separation is to be rendered and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered. The TRCs include input values and their corresponding modified input values. In a given TRC, the input values of the second and optionally other color separations are fixed. For a pixel of the digital image having a given input values for the first and second color separation one or more of the TRCs are selected which bound the fixed input value for the second color separation and a modified input value is determined therefrom.
摘要翻译：考虑着色剂相互作用的颜色变换方法包括为形成数字图像的一个或多个分色建立多个色调再现曲线（TRC）。每个TRC考虑到将要渲染第一颜色分离的主要着色剂与至少一种次要着色剂之间的着色剂相互作用，至少一个次要着色剂将使多个分色中的至少一个分色进行渲染。 TRC包括输入值及其对应的修改输入值。在给定的TRC中，第二个和任选的其他分色的输入值是固定的。对于具有用于第一和第二颜色分离的给定输入值的数字图像的像素，选择一个或多个TRC，其限定用于第二颜色分离的固定输入值，并且从其确定修改的输入值。

93. 发明申请

US20100231942A1 METHODS AND SYSTEMS ACHIEVING PRINT UNIFORMITY USING REDUCED MEMORY OR COMPUTATIONAL REQUIREMENTS 有权
标题翻译：使用减少内存或计算要求实现打印均匀性的方法和系统
公开(公告)号：US20100231942A1
公开(公告)日：2010-09-16
申请号：US12786694
申请日：2010-05-25
申请人： Yequing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
发明人： Yequing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
IPC分类号： G06F15/00
CPC分类号： H04N1/407 , H04N1/4097
摘要： Engine response curves (RCs) can be used for streak compensation for printed documents. A feedback control paradigm can be included to effect RC compensation. Singular Value Decomposition (SVD) can be used to represent each RC in the collection of spatial RC data as a linear combination of basis vectors. RCs are approximated by selecting the first few basis vectors, the approximation aiding in noise rejection and reducing computation in the controller by reducing dimensionality of the RC data from gray levels to the number of SVD bases selected. An optimal subset of RCs is selectable from the set of approximated RCs by clustering the SVD weights, the clustered SVD weights producing TRCs that span all engine response RCs generated by a printer. Compensation RCs are constructible using reduced number of bases and clustered SVD weights.
摘要翻译：发动机响应曲线（RC）可用于印刷文件的条纹补偿。可以包括反馈控制范例来实现RC补偿。奇异值分解（SVD）可以用于将空间RC数据的集合中的每个RC表示为基向量的线性组合。通过选择前几个基本矢量近似，近似有助于噪声抑制，并通过将RC数据从灰度级降低到所选择的SVD基数来减少控制器中的计算。通过对SVD权重进行聚类，可从集合的近似RC中选择RC的最佳子集，产生跨越由打印机产生的所有发动机响应RC的TRC的聚类SVD权重。补偿RC可以使用减少的基数和聚类SVD权重来构建。

94. 发明申请

US20100188672A1 GAMUT AIM AND GAMUT MAPPING METHOD FOR SPATIALLY VARYING COLOR LOOKUP TABLES 有权
标题翻译：用于空间变化颜色查找表的游戏目标和游戏绘图方法
公开(公告)号：US20100188672A1
公开(公告)日：2010-07-29
申请号：US12359649
申请日：2009-01-26
申请人： Edgar Bernal , Robert P. Loce , Raja Bala
发明人： Edgar Bernal , Robert P. Loce , Raja Bala
IPC分类号： G06F15/00
CPC分类号： H04N1/60 , H04N1/409
摘要： An image processing apparatus, program product, and method determine an achievable gamut achievable by the imaging engine or engines for all spatial locations of an output image, or all utilized print engines. A reference gamut is calculated which is any gamut containing the achievable gamut. A gamut mapping is used to map gamuts from the mean gamut to the achievable gamut, and a set of transformations is calculated for each of a set of input colors to a set of target colors selected from colors in the achievable gamut. Values for a received digital image are transformed for each image pixel or clusters of pixels based on the calculated set of transformations. Output images are generated based on the transformed values.
摘要翻译：图像处理装置，程序产品和方法确定由输出图像或所有使用的打印引擎的所有空间位置的成像引擎或引擎可实现的可实现色域。计算参考色域，其中包含可实现色域的任何色域。色域映射用于将色域从均匀色域映射到可实现色域，并且将一组输入颜色中的每一个计算为从可实现色域中的颜色中选择的一组目标颜色的一组变换。基于所计算的变换集合，针对每个图像像素或像素簇变换接收数字图像的值。基于变换后的值生成输出图像。

95. 发明申请

US20100149599A1 METHOD AND APPARATUS FOR SLOW SCAN MAGNIFICATION ADJUSTMENT USING NON-REDUNDANT OVERWRITING 有权
标题翻译：使用非冗余覆盖进行慢扫描放大调整的方法和装置
公开(公告)号：US20100149599A1
公开(公告)日：2010-06-17
申请号：US12336654
申请日：2008-12-17
申请人： Beilei Xu , Robert P. Loce , Jess R. Gentner
发明人： Beilei Xu , Robert P. Loce , Jess R. Gentner
IPC分类号： G06K15/02
CPC分类号： G06K15/02 , B41J11/008 , B41J11/009
摘要： A method of achieving process-direction sub-raster magnification adjustment using non-redundant overwriting. The raster imager provides overwriting while the image path provides non-redundant data for each pass according to the desired magnification adjustment. The same laser power level can be used for the multiple writes, or optionally, it may be varied to further improve spatial resolution of the adjustment.
摘要翻译：使用非冗余重写实现过程方向子光栅放大调整的方法。光栅成像器提供覆盖，而图像路径根据期望的放大倍数调整为每次通过提供非冗余数据。相同的激光功率水平可以用于多次写入，或者可选地，其可以被改变以进一步改善调整的空间分辨率。

96. 发明申请

US20100142003A1 WATERMARK ENCODING AND DETECTION USING NARROW BAND ILLUMINATION 有权
标题翻译：使用窄带照明的WATERMARK编码和检测
公开(公告)号：US20100142003A1
公开(公告)日：2010-06-10
申请号：US12329082
申请日：2008-12-05
申请人： Karen M. Braun , Raja Bala , Robert P. Loce
发明人： Karen M. Braun , Raja Bala , Robert P. Loce
IPC分类号： G06K15/02 , H04N1/405 , G06K9/00
CPC分类号： H04N1/32309 , H04N1/32352 , H04N2201/327 , H04N2201/3271 , Y10S283/902
摘要： 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.
摘要翻译：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。

97. 发明授权

US07719719B2 Sharpening a halftoned image 有权
标题翻译：锐化半色调图像
公开(公告)号：US07719719B2
公开(公告)日：2010-05-18
申请号：US11522610
申请日：2006-09-18
申请人： Robert P. Loce , Yeqing Zhang , Beilei Xu
发明人： Robert P. Loce , Yeqing Zhang , Beilei Xu
IPC分类号： H04N1/405 , H04N1/409
CPC分类号： H04N1/40075 , H04N1/4092
摘要： Images that include halftone structures are sharpened. A copy of received halftone image data is blurred, thereby reducing a detectability of edges of the halftone structures. Edges remaining in the blurred image data are detected. An edge enhancement image is generated based on the detected edges. The original received halftone image data is combined with the edge enhancement image, thereby generating sharpness enhanced image data having halftone structures. The sharpness enhanced image data having halftone structures can be rendered through a halftone screen that is compatible with a halftone screen that was used to generate the originally received image data. Alternatively, the sharpness enhanced image data having halftone structures is rendered according to error diffusion techniques, such as, rank order error diffusion in order to achieve or maintain dot or halftone structure compaction.
摘要翻译：包括半色调结构的图像被削尖。所接收的半色调图像数据的副本被模糊，从而降低了半色调结构的边缘的可检测性。检测残留在模糊图像数据中的边缘。基于检测到的边缘生成边缘增强图像。原始接收的半色调图像数据与边缘增强图像组合，从而产生具有半色调结构的锐度增强的图像数据。具有半色调结构的清晰度增强的图像数据可以通过与用于生成原始接收的图像数据的半色调屏幕兼容的半色调屏幕来呈现。或者，具有半色调结构的清晰度增强的图像数据根据误差扩散技术（诸如等级误差扩散）来形成，以实现或维持点或半色调结构压缩。

98. 发明授权

US07525704B2 System for providing depth discrimination of source images encoded in a rendered composite image 失效
标题翻译：用于提供在渲染的合成图像中编码的源图像的深度辨别的系统
公开(公告)号：US07525704B2
公开(公告)日：2009-04-28
申请号：US11311950
申请日：2005-12-20
申请人： Robert P. Loce , Yeqing Zhang , Gaurav Sharma , Steven J. Harrington , Peter A. Crean
发明人： Robert P. Loce , Yeqing Zhang , Gaurav Sharma , Steven J. Harrington , Peter A. Crean
IPC分类号： H04N1/46 , H04N13/04
CPC分类号： H04N13/302
摘要： A system for enabling depth perception of image content in a rendered composite image, wherein illuminant/colorant depth discrimination encoding provides encoding of first and second source images in a composite image, for the purposes of subsequent illuminant/colorant depth discrimination decoding. Composite image rendering allows for rendering the composite image in a physical form. Illuminant/colorant depth discrimination decoding allows recovery of the first and second source images, thus offering to an observer the perception of spatial disparity between at least one of the recovered source images and some or all of the remaining image content perceived in the rendered composite image.
摘要翻译：一种用于在渲染的合成图像中实现图像内容的深度感知的系统，其中光源/着色剂深度识别编码提供合成图像中的第一和第二源图像的编码，以用于随后的发光/着色剂深度鉴别解码。复合图像渲染允许以物理形式呈现合成图像。照明/着色深度鉴别解码允许恢复第一和第二源图像，从而向观察者提供至少一个恢复的源图像与所渲染的合成图像中感知的剩余图像内容中的一些或全部之间的空间差异的感知。

99. 发明申请

US20080137149A1 Watermarking 有权
标题翻译：水印
公开(公告)号：US20080137149A1
公开(公告)日：2008-06-12
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： G06K15/00
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色剂之外的除了和附加的着色剂：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。

100. 发明申请

US20080130055A1 MOIRE-FREE COLOR HALFTONE CONFIGURATION EMPLOYING COMMON FREQUENCY VECTORS 有权
标题翻译：使用通用频率矢量的无电子颜色HALFTONE配置
公开(公告)号：US20080130055A1
公开(公告)日：2008-06-05
申请号：US11565434
申请日：2006-11-30
申请人： Shen-Ge Wang , Robert P. Loce
发明人： Shen-Ge Wang , Robert P. Loce
IPC分类号： G06K15/00
CPC分类号： H04N1/4058 , H04N1/52
摘要： Disclosed herein is a method and apparatus for moiré-free color halftone printing with up to four color image separations. The method and apparatus utilize a plurality of non-orthogonal halftone screens to produce outputs that are moiré free and form uniform periodic rosettes. The method and apparatus provide for defining a first and a second color halftone screen fundamental frequency vector for each of three halftone screens such that the halftone screen set output forms uniform hexagonal rosettes; then defining a fourth color halftone screen where a first fundamental vector of the fourth screen shares a fundamental frequency vector with one of said three halftone screens and a second fundamental frequency vector of the fourth screen shares a fundamental frequency vector with a different one of said three color halftone screens.
摘要翻译：本文公开了一种用于无摩擦色彩半色调打印的方法和装置，其具有多达四个彩色图像分离。该方法和装置利用多个非正交半色调筛网产生无波纹的输出并形成均匀的周期性玫瑰花结。该方法和装置提供了为三个半色调屏幕中的每一个定义第一和第二颜色半色调网屏基本频率矢量，使得半色调屏幕组输出形成均匀的六边形玫瑰花结; 然后定义第四色调网屏，其中第四屏幕的第一基本矢量与所述三个半色调屏幕中的一个共享基本频率矢量，并且第四屏幕的第二基频矢量与所述三个网版的不同的一个共享基本频率矢量彩色半色调屏幕

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