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1. 发明授权

US07355752B2 Two-dimensional calibration architectures for color devices 有权
标题翻译：彩色设备的二维校准架构
公开(公告)号：US07355752B2
公开(公告)日：2008-04-08
申请号：US10465408
申请日：2003-06-18
申请人： Gaurav Sharma , Raja Bala , Jean-Pierre R. N. Van de Capelle , Martin S. Maltz , Lalit K. Mestha
发明人： Gaurav Sharma , Raja Bala , Jean-Pierre R. N. Van de Capelle , Martin S. Maltz , Lalit K. Mestha
IPC分类号： H04N1/50 , H04N1/56
CPC分类号： H04N1/50 , G09G5/04 , G09G2320/0276 , G09G2320/0693 , H04N1/603
摘要： A color output device is generally driven by at least three independent control signals for control of its response. A desired response in device independent color space is normally obtained by employing a cascade consisting of a characterization transform and calibration transform. The calibration transform transforms input control variables into output control variables that are directly used to drive the device. Input control variables can be transformed into intermediate control variables, which can be then mapped to output control variables utilizing a two-dimensional transformation. The two-dimensional calibration architecture provides improved control functionality and flexibility.
摘要翻译：颜色输出装置通常由至少三个独立的控制信号驱动，以控制其响应。通常通过使用由特征变换和校准变换组成的级联来获得器件独立色彩空间中的期望响应。校准变换将输入控制变量转换为直接用于驱动器件的输出控制变量。输入控制变量可以转换为中间控制变量，然后可以使用二维变换将其映射到输出控制变量。二维校准架构提供了改进的控制功能和灵活性。

2. 发明授权

US07884964B2 Methods and systems for controlling out-of-gamut memory and index colors 有权
标题翻译：用于控制色域内存和索引颜色的方法和系统
公开(公告)号：US07884964B2
公开(公告)日：2011-02-08
申请号：US10635381
申请日：2003-08-05
申请人： Martin S. Maltz , Raja Bala , Lalit K. Mestha
发明人： Martin S. Maltz , Raja Bala , Lalit K. Mestha
IPC分类号： G06F15/00 , G06K9/00
CPC分类号： H04N1/6058
摘要： Methods and systems in an image processing device for controlling colors that are located external to a gamut are disclosed. A plurality of color values can be automatically provided as input to said image processing device, wherein said image processing device is under a control of a particular dimensional order, typically a three-dimensional order, but alternatively can be a two-dimensional order. Next, an operation can be performed dynamically determining which color value among the plurality of color values has attained a gamut limit. Thereafter, the particular dimensional order can be automatically reduced, thereby providing improved control for colors that are located external to said gamut. The plurality of color values analyzed is generally associated with three colors—cyan, magenta, and yellow.
摘要翻译：公开了用于控制位于色域外部的颜色的图像处理装置中的方法和系统。可以将多个颜色值自动提供给所述图像处理装置的输入，其中所述图像处理装置处于特定尺寸顺序的控制下，通常为三维顺序，但是可替代地可以是二维顺序。接下来，可以动态地确定多个颜色值中的哪个颜色值已经达到色域限制的操作。此后，可以自动减小特定尺寸顺序，从而对位于所述色域外部的颜色提供改进的控制。分析的多个颜色值通常与三种颜色（青色，品红色和黄色）相关联。

3. 发明授权

US07277196B2 Iterative printer control and color balancing system and method using a high quantization resolution halftone array to achieve improved image quality with reduced processing overhead 有权
标题翻译：迭代打印机控制和颜色平衡系统和方法使用高量化分辨率半色调阵列，以减少处理开销来实现改进的图像质量
公开(公告)号：US07277196B2
公开(公告)日：2007-10-02
申请号：US10342873
申请日：2003-01-15
申请人： Jean-Pierre R. M. Van de Capelle , Lalit K. Mestha , Robert P. Loce , Raja Bala , Martin S. Maltz , Peter A. Crean
发明人： Jean-Pierre R. M. Van de Capelle , Lalit K. Mestha , Robert P. Loce , Raja Bala , Martin S. Maltz , Peter A. Crean
IPC分类号： G06F15/00
CPC分类号： H04N1/4078 , H04N1/6033
摘要： A system and method for printer control and color balance calibration. The system and method address the image quality problems of print engine instability, low quality of color balance and contouring from the calibration. The method includes defining combinations of colorants, such as inks or toners that will be used to print images, defining a desired response for the combinations that are to be used and, in real time, iteratively printing CMY halftone color patches, measuring the printed patches via an in situ sensor and iteratively performing color-balance calibration based on the measurements, accumulating corrections until the measurements are within a predetermined proximity of the desired response. The calibration is performed on the halftones while they are in a high quantization resolution form.
摘要翻译：一种用于打印机控制和色平衡校准的系统和方法。该系统和方法解决了打印引擎不稳定的图像质量问题，色彩平衡质量差和校准轮廓。该方法包括定义着色剂的组合，例如将用于打印图像的油墨或调色剂，为要使用的组合定义期望的响应，并且实时迭代地打印CMY半色调色块，测量印刷的贴片通过原位传感器并且基于测量迭代地执行色平衡校准，累积校正直到测量值在所需响应的预定接近度内。校准在半色调上进行，而它们处于高量化分辨率形式。

4. 发明授权

US08134547B2 Merit based gamut mapping in a color management system 有权
标题翻译：色彩管理系统中基于品质的色域映射
公开(公告)号：US08134547B2
公开(公告)日：2012-03-13
申请号：US12177178
申请日：2008-07-22
申请人： Alvaro E. Gil , Lalit K. Mestha , Martin S. Maltz
发明人： Alvaro E. Gil , Lalit K. Mestha , Martin S. Maltz
IPC分类号： H04N1/60 , G06K9/00 , G06T15/30
CPC分类号： G09G5/02 , G09G2340/06 , H04N1/6058
摘要： What is disclosed is a system and method for merit-based gamut mapping. In one embodiment, color points are clustered in regions of interest within a color space. Each cluster is associated with a gamut mapping function and a merit function. Mapping parameters of each gamut mapping function are iteratively varied to optimize the values based on the merit function value. An optimized gamut mapping function results. Optimized gamut mapping functions of adjacent clusters are blended together by blending the value of the gamut mapping function for a point of a cluster with a value produced by the gamut mapping function of an adjacent cluster for that color point. The composite gamut mapping function contains the optimized gamut mapping functions of all clusters is then output for use in mapping points within those clusters to points within the target gamut. The composite gamut mapping function exploits local advantages of each cluster.
摘要翻译：公开的是基于优点的色域映射的系统和方法。在一个实施例中，色点在颜色空间内聚集在感兴趣的区域中。每个簇与色域映射函数和优值函数相关联。每个色域映射函数的映射参数被迭代地改变，以根据优值函数值优化值。优化的色域映射功能结果。通过将簇的一个点的色域映射函数的值与该色点的相邻簇的色域映射函数产生的值混合，将相邻簇的优化色域映射函数混合在一起。复合色域映射函数包含所有簇的优化色域映射函数，然后被输出以用于将这些簇内的点映射到目标色域内的点。复合色域映射功能利用了每个集群的本地优势。

5. 发明授权

US07835036B2 Method to automatically identify and compensate for substrate differences using a sensor 有权
标题翻译：使用传感器自动识别和补偿基板差异的方法
公开(公告)号：US07835036B2
公开(公告)日：2010-11-16
申请号：US11125897
申请日：2005-05-02
申请人： Lalit K. Mestha , Raja Bala , Reiner Eschbach
发明人： Lalit K. Mestha , Raja Bala , Reiner Eschbach
IPC分类号： H04N1/40 , H04N1/46 , G03F3/08
CPC分类号： G06K15/02 , G03G15/5029 , G03G2215/00751
摘要： Identifying the substrate type of a target substrate before patterning by a marking engine produces an opportunity to adjust the marking engine. The adjustments can enable the marking engine to produce higher quality work. The target substrate's substrate type can be automatically identified by obtaining its characteristics and submitting them to a classifier. A spectrophotometer can measure a substrates reflectance spectrum, which is a good characteristic for use in classifying. Classifiers can be based on known distance or correlation measures.
摘要翻译：在通过标记引擎构图之前识别目标衬底的衬底类型产生调整标记引擎的机会。调整可以使打标机产生更高质量的工作。目标基板的基板类型可以通过获得其特性并将其提交给分类器来自动识别。分光光度计可以测量底物反射光谱，这是分类中使用的良好特性。分类器可以基于已知距离或相关性度量。

6. 发明授权

US06750442B2 Use of spectral sensors for automatic media identification and improved scanner correction 失效
标题翻译：使用光谱传感器进行自动介质识别和改进扫描仪校正
公开(公告)号：US06750442B2
公开(公告)日：2004-06-15
申请号：US10093220
申请日：2002-03-06
申请人： Raja Bala , Lalit K. Mestha , Robert J. Rolleston
发明人： Raja Bala , Lalit K. Mestha , Robert J. Rolleston
IPC分类号： G01J350
CPC分类号： H04N1/6094 , H04N1/603
摘要： An image transfer apparatus with a scanner and a spectrophotometric sensor interacting logically with the scanner. When the scanner scans a medium containing a color image, the spectrophotometric sensor interacts with the scanner to aid in the automatic selection of a scanner color correction corresponding to the medium being scanned.
摘要翻译：具有扫描器和分光光度传感器的图像传送装置与扫描仪逻辑地相互作用。当扫描仪扫描含有彩色图像的介质时，分光光度传感器与扫描仪相互作用，以帮助自动选择与被扫描介质相对应的扫描仪颜色校正。

7. 发明授权

US07339704B2 Method for standardizing input CMYK values for clustered printing environments 有权
标题翻译：集群打印环境的输入CMYK值的标准化方法
公开(公告)号：US07339704B2
公开(公告)日：2008-03-04
申请号：US10465457
申请日：2003-06-19
申请人： Lalit K. Mestha , Norman W. Zeck , Kenneth J. Mihalyov , Gaurav Sharma
发明人： Lalit K. Mestha , Norman W. Zeck , Kenneth J. Mihalyov , Gaurav Sharma
IPC分类号： H04N1/50 , H04N1/56 , G06K9/00
CPC分类号： H04N1/6025 , H04N1/6055
摘要： The present invention implements a CMYK to CMYK pre-transform in front of at least one printer to be clustered where the transform is designed to ensure that the printers addressed through the pre-transform have substantially identical output color for substantially identical input CMYK values. As one form of implementation a method is disclosed to build CMY to CMY 3D-LUTs and 1D-LUT for K using sensors in the field. Making use of a system LUT—CMY to CMY 3D-LUT and a K to K 1D-LUT—improves consistency and provides a coherent control strategy and a means to provide standardized input CMY and K values in a clustered environment so that single or multiple vendor DFEs see substantially identical CMYK values.
摘要翻译：本发明在至少一个打印机之前实现CMYK到CMYK预变换，以便将变换设计成保证通过预变换寻址的打印机对于基本上相同的输入CMYK值具有基本相同的输出颜色。作为实现的一种形式，公开了一种使用现场传感器构建CMY到CMY 3D-LUT和1D-LUT的方法。利用系统LUT-CMY到CMY 3D-LUT和K至K 1D-LUT提高了一致性，并提供了一致的控制策略，并提供了一种在集群环境中提供标准化输入CMY和K值的方法，使单个或多个供应商DFE看到基本相同的CMYK值。

8. 发明授权

US08711429B2 Systems and methods for printing images outside a normal color gamut in image forming devices 有权
标题翻译：用于在图像形成装置中打印普通色域之外的图像的系统和方法
公开(公告)号：US08711429B2
公开(公告)日：2014-04-29
申请号：US11099589
申请日：2005-04-06
申请人： Lalit K. Mestha , Tonya L. Love , Ta-Chen Hsu , Patricia J. Donaldson
发明人： Lalit K. Mestha , Tonya L. Love , Ta-Chen Hsu , Patricia J. Donaldson
IPC分类号： G03F3/08 , H04N1/60
CPC分类号： H04N1/6058 , G03G13/01
摘要： A user of an image forming device selects from among a plurality of pre-stored color rendition dictionaries (CRDs) in order that a set of system process parameter setpoints associated with that CRD may be referenced to bias and/or skew an available color gamut in the direction of a particular nominally out-of-gamut color which the user wishes to produce in a color image output by the image forming device. A capability is included in a color image forming device store and/or update multiple sets of special process parameter setpoints defining a plurality of CRDs each of which may be identified and associated with a specific color in order that requests to print out-of-gamut colors may be satisfied routinely as exceptions to a nominal gamut based on a nominal set of stored setpoints when a CRD is selected and the setpoints associated with that CRD are input for reference by the color image forming device on a temporary basis.
摘要翻译：图像形成装置的用户从多个预先存储的色彩再现字典（CRD）中进行选择，以便可以参考与该CRD相关联的一组系统处理参数设定点来偏置和/或偏斜可用色域在图像形成装置输出的彩色图像中，用户希望产生的特定名义上的色域外颜色的方向。彩色图像形成装置中包括能力存储和/或更新定义多个CRD的多组特殊过程参数设定点，每个CRD可以被识别并与特定颜色相关联，以便请求打印出色域当选择CRD并且与该CRD相关联的设定点被输入以供彩色图像形成装置临时参考时，可以常规地将颜色作为基于标称集合存储的设定值的标称色域的异常来满足。

9. 发明授权

US07738140B2 System and method for automated spot color editor 失效
标题翻译：自动专色编辑器的系统和方法
公开(公告)号：US07738140B2
公开(公告)日：2010-06-15
申请号：US11507405
申请日：2006-08-21
申请人： Joseph D. Hancock , Peter S. Fisher , Lalit K. Mestha , Kenneth J. Mihalyov , Tonya L. Love , Peter A. Crean , Matthew F. Hoffmann
发明人： Joseph D. Hancock , Peter S. Fisher , Lalit K. Mestha , Kenneth J. Mihalyov , Tonya L. Love , Peter A. Crean , Matthew F. Hoffmann
IPC分类号： G03F3/08 , G06K15/00 , G06K9/00 , H04N1/40
CPC分类号： H04N1/6033
摘要： Provided is a method for enabling accurate and consistent imaging of selected colors within a document for various printing device configurations utilizing an automated spot color editor. The method includes determining appropriate target values for a selected color within a print job. The automated spot color editor modifies or adjusts the selected color by selecting a quality level, in the form of a color difference metric, and a maximum number of iterations, which is the maximum number of times the automated spot color editor is operated to calculate a CMYK color formula. Sample patch(es) are printed and analyzed for the selected target value and a CMYK color formula based on the color composition of the sample patch is calculated. The CMYK color formula is inserted into a spot color editing table. Through a graphical user interface, an operator may review the color formula for acceptance.
摘要翻译：提供了一种用于使用自动专色编辑器对用于各种打印设备配置的文档内的所选颜色进行精确和一致的成像的方法。该方法包括确定打印作业内所选颜色的适当目标值。自动专色编辑器通过以色差度量和最大迭代次数的形式选择质量水平来修改或调整所选颜色，这是自动专色编辑器运行以计算一次的最大次数 CMYK颜色公式。打印并分析样品贴片用于所选择的目标值，并计算基于样品贴片的颜色组成的CMYK颜色公式。将CMYK颜色公式插入专色编辑表。通过图形用户界面，操作员可以检查颜色公式以进行验收。

10. 发明授权

US07583418B2 Array based sensor to measure single separation or mixed color (or IOI) patches on the photoreceptor using MEMS based hyperspectral imaging technology 有权
标题翻译：基于阵列的传感器，使用基于MEMS的高光谱成像技术测量感光体上的单分离或混合色彩（或IOI）贴片
公开(公告)号：US07583418B2
公开(公告)日：2009-09-01
申请号：US11535400
申请日：2006-09-26
申请人： Lalit K. Mestha , Peter M. Gulvin , Pinyen Lin , Yao Rong Wang
发明人： Lalit K. Mestha , Peter M. Gulvin , Pinyen Lin , Yao Rong Wang
IPC分类号： H04N1/46 , G06K15/00 , G01D18/00 , G06K9/00
CPC分类号： H04N1/46 , G01J1/4223 , G01J3/02 , G01J3/0256 , G01J3/0264 , G01J3/0291 , G01J3/26 , G01J3/2803 , G01J3/36 , G01J3/50 , G01J3/51 , G01J3/513 , G01J3/52 , G01J3/524 , H04N1/6033
摘要： A Micro-Electro-Mechanical System (MEMS) based Fabry-Perot array may be used as a spectral filter to light sensing array, such as a CCD or CMOS photodetector. Applying different voltages to the electrodes of individual Fabry-Perot cells within the array allows a gradient in the Fabry-Perot air gap across the Fabry-Perot array. In this manner the MEMS Fabry-Perot array serves as a spectral filter of light passing through the Fabry-Perot array to the photodetector array. Embodiments of the disclosed sensor, used with LEDs that emit light outside the photosensitivity range of a photoreceptor belt, may be used to measure spectral information from toned patches and/or images placed upon a photoreceptor belt within a marking system. Other embodiments of the disclosed senor, used with LEDs that emit light of any wavelength, may be used to measure spectral information from toned patches or images placed by a marking system upon a non-photosensitive output substrate, such as an intermediate belt or paper.
摘要翻译：基于微机电系统（MEMS）的法布里 - 珀罗阵列可用作光传感阵列的光谱滤波器，例如CCD或CMOS光电探测器。对阵列中的单个法布里 - 珀罗细胞的电极施加不同的电压允许跨法布里 - 珀罗阵列的法布里 - 珀罗气隙的梯度。以这种方式，MEMS法布里 - 珀罗阵列用作通过法布里 - 珀罗阵列到光电检测器阵列的光的光谱滤波器。所公开的传感器与在感光带的光敏度范围外发出光的LED一起使用的实施例可用于测量放置在标记系统内的感光带上的调色片和/或图像的光谱信息。用于发射任何波长的光的LED的所公开的传感器的其它实施例可用于测量由标记系统放置在非感光输出基板（例如中间带或纸）上的调色片或图像的光谱信息。

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