公开(公告)号：JP2007171967A

公开(公告)日：2007-07-05

申请号：JP2006343628

申请日：2006-12-20

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： FAN ZHIGANG ,  MESTHA LALIT K ,  WANG YAO RONG ,  WANG SHEN-GE

IPC: G03G15/01 ,  G03G15/00 ,  G06T1/00 ,  H04N1/46 ,  H04N1/60

CPC classification number: G06F15/00 ,  H04N1/6033 ,  H04N1/6036 ,  H04N1/6047

Abstract: PROBLEM TO BE SOLVED: To provide a method for controlling performance of an image output device and a system for image based color calibration.
SOLUTION: The method for controlling performance of the image output device includes steps of; characterizing the variability of the image output device in terms of a model; periodically collecting data relating to a current state of the image output device; and applying the data to the model to determine an adjustment to be made to the image output device.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于控制图像输出装置的性能的方法和用于基于图像的颜色校准的系统。 解决方案：用于控制图像输出装置的性能的方法包括以下步骤： 根据模型表征图像输出装置的可变性; 定期收集与图像输出装置的当前状态有关的数据; 以及将数据应用于模型以确定对图像输出装置进行的调整。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006129347A

公开(公告)日：2006-05-18

申请号：JP2004317916

申请日：2004-11-01

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： MESTHA LALIT K ,  ZECK NORMAN W ,  MIHALYOV KENNETH J ,  SHARMA GAURAV

IPC: H04N1/46 ,  B41J2/525 ,  G06T1/00 ,  H04N1/60

Abstract: PROBLEM TO BE SOLVED: To perform control so that a printer has substantially the same output color response to substantially the same input CMYK values.
SOLUTION: Pre-conversion among C, M, Y and K is carried out before at least one printer to be clustered and the conversion is so designed as to make it secure for a printer handled through the pre-conversion to have substantially the same output color for substantially the same input CMYK values. For example, a 3D LUT among C, M and K and a 1D LUT for K are generated by using sensors in a field.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：执行控制使得打印机具有与基本上相同的输入CMYK值基本上相同的输出颜色响应。 解决方案：C，M，Y和K之前的转换在至少一个待集成的打印机之前进行，并且转换被设计成使得通过预转换处理的打印机具有基本的 相同的输出颜色用于基本上相同的输入CMYK值。 例如，通过使用场中的传感器来生成C，M和K中的3D LUT和K的1D LUT。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2003222588A

公开(公告)日：2003-08-08

申请号：JP2002315279

申请日：2002-10-30

Applicant: XEROX CORP

Inventor： MESTHA LALIT K ,  SABER ELI S

IPC: G01N21/27 ,  G01N21/47 ,  H04N1/60

Abstract: PROBLEM TO BE SOLVED: To provide a system for sensing a marking substrate area coverage. SOLUTION: A sensor using a plurality of LEDs is used for sensing the area coverage of a marking patch on a marking substrate. The same sensor is applicable to color calibration. The sensor obtains a measured reflection rate from the marking patch, and the marking patch may be a patch of a marking substance, such as a toner, ink, paint, etc., or a mark produced by etching, etc. A measured reflection rate is obtained by using a Neugebauer model, and parameters suitable for the Neugebauer model are estimated by using the batch least square algorithm. The regression least square algorithm is used for the enhancement of accuracy, and the sensor is calibrated according to changes in its environments by using the regression least square algorithm. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2011037266A

公开(公告)日：2011-02-24

申请号：JP2010177199

申请日：2010-08-06

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： DALAL EDUL N ,  MESTHA LALIT K

IPC: B41J2/525 ,  B41F31/02 ,  B41F33/14 ,  G01J3/52 ,  G03G15/01

CPC classification number: G01J3/46 ,  G01J3/463 ,  H04N1/6033 ,  H04N1/6097

Abstract: PROBLEM TO BE SOLVED: To provide an estimating method and an estimating system for the color of a coated print, which predicts or estimates the color of a coated image based on the color measurement values of the colors printed before coating.
SOLUTION: A method for estimating the color of a coated print includes: a step of measuring the color of an uncoated print with a color measuring device; a step of estimating the color of the print when coated through a coating process based on the uncoated color measurement value using a function that correlates uncoated color measurement values and coated color measurement values; and a step of adjusting at least one parameter of the printing process based on the coated color estimation.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供涂布印刷品的颜色的估计方法和估计系统，其基于涂布前印刷的颜色的颜色测量值预测或估计涂布图像的颜色。 ＆lt; P＆gt;解决方案：一种用于估计涂布印刷品的颜色的方法，包括：用彩色测量装置测量未涂覆印刷品的颜色的步骤; 使用使未涂布的颜色测量值和涂布的颜色测量值相关联的函数，基于未涂布的颜色测量值，通过涂布工艺涂覆印刷物的颜色的步骤; 以及基于所涂覆的颜色估计来调整所述打印处理的至少一个参数的步骤。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2007057529A

公开(公告)日：2007-03-08

申请号：JP2006222433

申请日：2006-08-17

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： MESTHA LALIT K ,  LOVE TONYA L ,  PAUL PETER ,  FILLION CLAUDE S

IPC: G01J3/02 ,  G01J3/50

CPC classification number: G01J3/50 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/0278 ,  G01J3/501 ,  G01J3/524

Abstract: PROBLEM TO BE SOLVED: To provide a color spectrophotometer system for measuring accurately and stably a target spectral reflectance. SOLUTION: This color spectrophotometer system having a target surface provided with a fluctuating spacing from the color spectrophotometer system further includes: a color correction and calibration system for providing color correction and calibration information corresponding to a color measuring error in a color spectrophotometer with respect to the known fluctuating spacing of the target surface from the color spectrophotometer; and a target distance measuring system for measuring the fluctuating spacing of the target surface from the color spectrophotometer to provide a target area spacing information signal. The target area spacing information signal is automatically combined with the color correction and calibration information from the color correction and calibration system, to correct the color measuring error in the color spectrophotometer with respect to the fluctuating spacing of the target surface from the color spectrophotometer. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于准确和稳定地测量目标光谱反射率的彩色分光光度计系统。 ＆lt; P＆gt;解决方案：具有与彩色分光光度计系统间隔一定距离的目标表面的该彩色分光光度计系统还包括：颜色校正和校准系统，用于在彩色分光光度计中提供与色彩测量误差相对应的颜色校正和校准信息， 相对于来自彩色分光光度计的目标表面的已知波动间隔; 以及目标距离测量系统，用于测量目标表面与彩色分光光度计的波动间隔，以提供目标区域间隔信息信号。 目标区域间隔信息信号与来自颜色校正和校准系统的颜色校正和校准信息自动组合，以便根据彩色分光光度计相对于目标表面的波动间隔校正彩色分光光度计中的颜色测量误差。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006177954A

公开(公告)日：2006-07-06

申请号：JP2005363203

申请日：2005-12-16

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： MESTHA LALIT K ,  WANG YAO RONG ,  KUBBY JOEL A

IPC: G01J3/26

CPC classification number: G01N21/255 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/26

Abstract: PROBLEM TO BE SOLVED: To conduct color measurements at a high speed and with high accuracy. SOLUTION: Light from an irradiation unit 14 is irradiated on a material component 12, and reflected light is provided to a spectrum photometry sensor assembly 18 via a light-focusing unit 16. The spectrum photometry sensor assembly 18 spectroscopically analyzes the reflected light from the material component 12. The wavelength in the spectroscopic analysis is set variable. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：以高速和高精度进行颜色测量。 解决方案：来自照射单元14的光照射在材料成分12上，并且经由光聚焦单元16将反射光提供给光谱测光传感器组件18.光谱测光传感器组件18对反射光进行光谱分析 光谱分析中的波长是可变的。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2003106900A

公开(公告)日：2003-04-09

申请号：JP2002264230

申请日：2002-09-10

Applicant: XEROX CORP

Inventor： VIASSOLO DANIEL E ,  MESTHA LALIT K

IPC: G01J3/46 ,  G01J3/28

Abstract: PROBLEM TO BE SOLVED: To determine a spectrum based on a non-spectrum input using a reference database including a reflected spectrum and a training sample indicating an LED sensor output corresponding to the reflected spectrum. SOLUTION: The spectrophotometer of an LED base uses reconstructing algorithm based on a reference spectrophotometer and the spectrum information of light emitting source, and then converts the measurement of an integrated multiple light emitting body from a color sensor with a mounted non-full light emitting body to a fully mounted spectrum curve. A non-linear model such as a fuzzy inference system FIS is used to reconstruct the spectrum.

公开(公告)号：JP2010220239A

公开(公告)日：2010-09-30

申请号：JP2010109927

申请日：2010-05-12

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： MESTHA LALIT K ,  ZECK NORMAN W ,  MIHALYOV KENNETH J ,  SHARMA GAURAV

IPC: H04N1/46 ,  B41J2/525 ,  G06T1/00 ,  H04N1/60

Abstract: PROBLEM TO BE SOLVED: To perform control so that a printer may have substantially the same output color response to substantially the same input CMYK values.
SOLUTION: Pre-conversion among CMYK is carried out before at least one printer to be clustered and the conversion is so designed as to make it secure for a printer handled through the pre-conversion to have substantially the same output color for substantially the same input CMYK values. For example, a 3D LUT among CMY and a 1D LUT for K are generated by using sensors in a field.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：执行控制，使得打印机可以具有与基本相同的输入CMYK值基本上相同的输出颜色响应。

解决方案：CMYK之前的转换是在至少一台要进行集群的打印机之前进行的，并且转换设计成使得通过预转换处理的打印机具有基本上相同的输出颜色 相同的输入CMYK值。 例如，通过使用场中的传感器来生成用于K的CMY和1D LUT中的3D LUT。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2007293336A

公开(公告)日：2007-11-08

申请号：JP2007104014

申请日：2007-04-11

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： GULVIN PETER M ,  MESTHA LALIT K ,  WANG YAO RONG ,  LIN PINYEN

IPC: G02B26/00 ,  G02B27/18 ,  G03B21/00 ,  H04N9/31

CPC classification number: G02B26/001 ,  G02B3/0062 ,  G03B21/005 ,  G03B21/14 ,  G09G3/001 ,  G09G3/2018 ,  G09G3/3466

Abstract: PROBLEM TO BE SOLVED: To solve the problem that the saturation of either one of colors is limited by using a color wheel in an LCD projector. SOLUTION: A projection system includes a display apparatus comprising a plurality of tunable Fabry-Perot filters, each of the filters being configured for shifting between a state in which the filter transmits radiation in a bandwidth in the visible range of the electromagnetic spectrum and a state in which the filter transmits radiation in a bandwidth outside the visible range of the electromagnetic spectrum. An illuminator provides light to the plurality of Fabry-Perot filters. A control system receives image data and controls the display apparatus to project an image onto an associated display surface. The control system includes a modulator which provides wavelength modulation signals to the plurality of Fabry-Perot filters to modulate a color of pixels in the image and causes selected ones of the Fabry-Perot filters to shift into the bandwidth outside the visible range to modulate the brightness of pixels in the image. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了解决通过在LCD投影仪中使用色轮来限制任一种颜色的饱和度的问题。 解决方案：投影系统包括包括多个可调节法布里 - 珀罗滤光器的显示设备，每个滤光器被配置为在滤光器在电磁光谱的可见范围内的带宽中传输辐射的状态 以及滤波器在电磁光谱的可见范围外的带宽内透射辐射的状态。 照明器向多个法布里 - 珀罗滤光器提供光。 控制系统接收图像数据并控制显示装置将图像投影到相关联的显示表面上。 该控制系统包括调制器，该调制器向多个法布里 - 珀罗滤波器提供波长调制信号，以调制图像中的像素的颜色，并使选定的法布里 - 珀罗滤波器转移到可见光范围之外的带宽中，以调制 图像中像素的亮度。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007104662A

公开(公告)日：2007-04-19

申请号：JP2006258968

申请日：2006-09-25

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： VITURRO R ENRIQUE ,  MESTHA LALIT K ,  HANCOCK JOSEPH D ,  LOVE TONYA L

IPC: H04N1/407 ,  G06T5/00 ,  H04N1/46 ,  H04N1/60

CPC classification number: H04N1/4078

Abstract: PROBLEM TO BE SOLVED: To provide a gray balance correction per periodic pitch in printer and a control method. SOLUTION: A method of a gray balance correction per periodic pitch in printer and a control includes a step of forming a target patch pattern for each of a plurality of pitches on a base material, a step of measuring each target patch pattern and capturing a measured value for each patch in the target patch pattern, a step of determining a rhythm reproduction curve for each pitch based on the measured value, a step of applying the rhythm reproduction curve for respective pitch and of standardizing and optimizing a printer output, and a step of repeating the above-mentioned steps of forming, measuring, determines, and applying until the difference between a desired value and an actual value becomes smaller than a predetermined threshold value, and of correcting the above-mentioned printer therewith. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了在打印机中提供每个周期性间距的灰度平衡校正和控制方法。 解决方案：打印机中的每个周期性间距的灰度平衡校正的方法和控制包括：对基材上的多个间距中的每一个形成目标贴片图案的步骤，测量每个目标贴图图案的步骤;以及 捕获目标贴片图案中的每个贴片的测量值，基于测量值确定每个音调的节奏再现曲线的步骤，应用用于各个音调的节奏再现曲线并且标准化和优化打印机输出的步骤， 以及重复上述形成，测量，确定和应用的步骤，直到期望值和实际值之间的差变得小于预定阈值，并且用上述打印机进行校正。 版权所有（C）2007，JPO＆INPIT