[go: up one dir, main page]

BR0204548A - Sistemas e métodos para detectar a cobertura da área de substrato marcada usando um espectofotÈmetro - Google Patents

Sistemas e métodos para detectar a cobertura da área de substrato marcada usando um espectofotÈmetro

Info

Publication number
BR0204548A
BR0204548A BR0204548-6A BR0204548A BR0204548A BR 0204548 A BR0204548 A BR 0204548A BR 0204548 A BR0204548 A BR 0204548A BR 0204548 A BR0204548 A BR 0204548A
Authority
BR
Brazil
Prior art keywords
marked
strips
area coverage
substrate area
spectrophotometer
Prior art date
Application number
BR0204548-6A
Other languages
English (en)
Inventor
Lalit K Mestha
Eli S Saber
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of BR0204548A publication Critical patent/BR0204548A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/603—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer
    • H04N1/6033—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer using test pattern analysis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00025—Machine control, e.g. regulating different parts of the machine
    • G03G2215/00029—Image density detection
    • G03G2215/00033—Image density detection on recording member
    • G03G2215/00037—Toner image detection
    • G03G2215/00042—Optical detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

"SISTEMAS E MéTODOS PARA DETECTAR A COBERTURA DA áREA DE SUBSTRATO MARCADA USANDO UM ESPECTOFOTÈMETRO". Um sensor LED é usado para detectar a cobertura de área das tiras marcadas em um substrato marcado. O mesmo sensor também pode ser usado para a calibragem de cores. O sensor de cobertura de área de substrato de marcação obtém as medições de refletância das tiras marcadas de um substrato de marcação. Por exemplo, as tiras marcadas podem ser tiras de um substrato de marcação, tal como um toner, tinta ou pintura, ou tiras marcadas por gravação, ou similar. Um modelo Neugebauer pode ser usado para obter as medições de refletância. Um algoritmo de lote de least squares pode ser usado para estimar os parâmetros apropriados do modelo Neugebauer. Para melhor precisão, pode ser usado um algoritmo recursivo de least squares. O algoritmo recursivo de least squares permite que o sensor de cobertura de área de substrato de marcação se calibre para mudanças no ambiente de detecção.
BR0204548-6A 2001-11-02 2002-10-30 Sistemas e métodos para detectar a cobertura da área de substrato marcada usando um espectofotÈmetro BR0204548A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/985,419 US7110142B2 (en) 2001-11-02 2001-11-02 Systems and methods for sensing marking substrate area coverage using a spectrophotometer

Publications (1)

Publication Number Publication Date
BR0204548A true BR0204548A (pt) 2004-06-08

Family

ID=25531478

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0204548-6A BR0204548A (pt) 2001-11-02 2002-10-30 Sistemas e métodos para detectar a cobertura da área de substrato marcada usando um espectofotÈmetro

Country Status (5)

Country Link
US (1) US7110142B2 (pt)
EP (1) EP1309176B1 (pt)
JP (2) JP2003222588A (pt)
BR (1) BR0204548A (pt)
DE (1) DE60227761D1 (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040068181A1 (en) * 2002-09-24 2004-04-08 Konica Corporation Image forming apparatus, image forming method and image forming system
US7059701B2 (en) * 2004-03-15 2006-06-13 Lexmark International, Inc. Method for calibrating production printing cartridges for use in an imaging system
US20050214015A1 (en) * 2004-03-25 2005-09-29 Eastman Kodak Company Densitometer for use in a printer
US7856116B2 (en) 2004-11-09 2010-12-21 Digimarc Corporation Authenticating identification and security documents
US8154777B2 (en) * 2005-08-09 2012-04-10 Xerox Corporation Color compensation of images
US7782489B2 (en) * 2006-04-13 2010-08-24 E.I. Du Pont De Nemours And Company Method for selecting a sample set useful in relating color reflectances producible under reference and target operating conditions and the sample set producing thereby
US7777916B2 (en) * 2006-04-13 2010-08-17 E. I. Du Pont De Nemours And Company Method for producing a table of predicted reflectances under target operating conditions and data structure and printing system incorporating the table
US8270049B2 (en) * 2006-08-01 2012-09-18 Xerox Corporation System and method for high resolution characterization of spatial variance of color separation misregistration
US8274717B2 (en) * 2006-08-01 2012-09-25 Xerox Corporation System and method for characterizing color separation misregistration
US7684082B2 (en) * 2007-04-19 2010-03-23 Xerox Corporation Method and system for compensating for thermochromaticity differences in inline spectrophotometers
US8228559B2 (en) * 2007-05-21 2012-07-24 Xerox Corporation System and method for characterizing color separation misregistration utilizing a broadband multi-channel scanning module
US8072648B2 (en) * 2007-07-26 2011-12-06 Xerox Corporation Halftone independent correction of spatial non-uniformities
US8424486B2 (en) 2008-07-10 2013-04-23 Certusview Technologies, Llc Marker detection mechanisms for use in marking devices and methods of using same
US20100149559A1 (en) * 2008-12-15 2010-06-17 Xerox Corporation. Specialty media calibration enhancement method and system
CA2897462A1 (en) 2009-02-11 2010-05-04 Certusview Technologies, Llc Management system, and associated methods and apparatus, for providing automatic assessment of a locate operation
US8213055B2 (en) * 2009-02-20 2012-07-03 Hewlett-Packard Development Company, L.P. Color separation into Neugebauer primary area coverage vectors
US8270032B2 (en) * 2009-10-26 2012-09-18 Hewlett-Packard Development Company, L.P. Generating color lookup table
WO2011126480A1 (en) * 2010-04-07 2011-10-13 Hewlett-Packard Development Company, L.P. Color printing system calibration
US8619329B2 (en) 2010-11-12 2013-12-31 Xerox Corporation Print smoothness on clear toner enabled systems
US8824029B2 (en) * 2011-06-16 2014-09-02 Cal-Comp Electronics & Communications Company Limited Color calibration method and image processing device using the same
GB2527495A (en) * 2014-05-20 2015-12-30 Chesapeake Ltd Ink set optimisation
WO2018140055A1 (en) * 2017-01-30 2018-08-02 Hewlett-Packard Development Company, L.P. Color calibration
US10382645B2 (en) 2017-03-10 2019-08-13 Digimarc Corporation Predicting detectability and grading prior to printing
US10506128B1 (en) 2017-06-16 2019-12-10 Digimarc Corporation Encoded signal systems and methods to ensure minimal robustness
US10986245B2 (en) 2017-06-16 2021-04-20 Digimarc Corporation Encoded signal systems and methods to ensure minimal robustness
US10880451B2 (en) 2018-06-08 2020-12-29 Digimarc Corporation Aggregating detectability metrics to determine signal robustness
CN117214108B (zh) * 2023-11-06 2024-02-06 安徽猫头鹰科技有限公司 一种基于光谱检测设备的批量自动校准方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204538A (en) * 1992-05-18 1993-04-20 Xerox Corporation Densitometer for an electrophotographic printer using focused and unfocused reflecting beams
US5471313A (en) 1993-02-24 1995-11-28 Xerox Corporation Method and control system architecture for controlling tone reproduction in a printing device
US5508826A (en) 1993-04-27 1996-04-16 Lloyd; William J. Method and apparatus for calibrated digital printing using a four by four transformation matrix
US5587728A (en) 1994-04-29 1996-12-24 International Business Machines Corporation Optical feedback printer
US5519497A (en) 1994-11-25 1996-05-21 Xerox Corporation Control develop mass in a color system
US6134029A (en) 1996-09-09 2000-10-17 Light Source Acquisition Company Scanner calibration technique
US5933578A (en) 1997-04-08 1999-08-03 Barco Graphics, N.V. Method and device for determining the color appearance of color overprints
US6467867B1 (en) * 1997-09-03 2002-10-22 Macdermid Acumen, Inc. Method and apparatus for registration and color fidelity control in a multihead digital color print engine
US6236474B1 (en) 1998-05-22 2001-05-22 Xerox Corporation Device independent color controller and method
US6650446B1 (en) * 1999-06-29 2003-11-18 Kodak Polychrome Graphics Colorimetric characterization of scanned media using spectral scanner and media models
US6556932B1 (en) 2000-05-01 2003-04-29 Xerox Corporation System and method for reconstruction of spectral curves using measurements from a color sensor and a spectral measurement system model
US6449045B1 (en) 2000-05-01 2002-09-10 Xerox Corporation System and method from reconstruction of spectral curves using measurements for a color sensor and statistical techniques
US6628426B2 (en) * 2001-05-22 2003-09-30 Lexmark International, Inc. Method of halftone screen linearization via continuous gradient patches
US6584435B2 (en) 2001-08-30 2003-06-24 Xerox Corporation Systems and methods for determining spectra using dynamic karhunen-loeve algorithms with measurements from led color sensor
US6587793B2 (en) 2001-09-17 2003-07-01 Xerox Corporation Systems and methods for determining spectra using fuzzy inference algorithms with measurements from LED color sensor
US7006250B2 (en) * 2001-09-27 2006-02-28 Lexmark International, Inc. Method of setting laser power and developer bias in an electrophotographic machine based on an estimated intermediate belt reflectivity

Also Published As

Publication number Publication date
DE60227761D1 (de) 2008-09-04
EP1309176A2 (en) 2003-05-07
JP4799591B2 (ja) 2011-10-26
EP1309176A3 (en) 2005-06-15
EP1309176B1 (en) 2008-07-23
US20030086103A1 (en) 2003-05-08
US7110142B2 (en) 2006-09-19
JP2003222588A (ja) 2003-08-08
JP2008298787A (ja) 2008-12-11

Similar Documents

Publication Publication Date Title
BR0204548A (pt) Sistemas e métodos para detectar a cobertura da área de substrato marcada usando um espectofotÈmetro
BR0104093A (pt) Sistema de registro de cor de membro de suporte de imagem de impressão em cores
Benet et al. Using infrared sensors for distance measurement in mobile robots
WO2004099818A3 (en) A modular non-contact measurement device for quickly and accurately obtaining dimensional measurement data
EP1134543A4 (en) PROBE SHAPED SENSOR, NC MACHINING DEVICE AND SHAPED MEASURING METHOD USING THE SENSOR
ATE214157T1 (de) Vorrichtung zum berührungsfreien vermessen einer dreidimensionalen objektoberfläche
BR0014467A (pt) Métodos para determinar uma fórmula de cor para casar uma cor selecionada, para determinar uma textura e/ou fórmula de cor para casar com uma cor selecionada, e para determinar a diferença de cor de uma cor selecionada
BR0014654A (pt) Método para coincidir cores de tintas de impressão
ATE321996T1 (de) Mit einer graphischen repräsentationsanzeige ausgestattete vorrichtung zur messung eines biologischen parameters
MX2009007828A (es) Patron transferible a la piel para mediciones opticas durante la afeitada.
BRPI0411205A (pt) método para a determinação de receita de cor para padrões de cor sólida
BR0101658A (pt) Sistema e método para reconstrução de curvasespectrais utilizando medições de um sensor decor e técnicas estatìsticas
ITMI20010780A0 (it) Procedimento per riconoscere errori nella valutazione di segnali di sensori
HUP0104732A2 (hu) Fenolt és/vagy fenol-származékokat tartalmazó alacsony fagyáspontú készítmény
GB9907123D0 (en) Position finding
AU2003228915A1 (en) Adjustable, self-correcting web substrate folding system
US7551317B2 (en) Color control for a printing press having spectrally based colorimetry
NO20170107A1 (en) Tool for transferring positions of measurement references
DE59811965D1 (de) Messvorrichtung zur berührungslosen erfassung eines drehwinkels
TW200517449A (en) Color changing correction fluid
DE69927597D1 (de) Verfahren und Vorrichtung zur Falzwinkelmessung eines Blattes in einer Falzmaschine
DK1579210T3 (da) Kolorimetriske sensorer, som er konstrueret af diacetylenmaterialer
WO2005084131A3 (en) An inclination measuring device
DE60000634D1 (de) Druckmessfilm zur Messung des Druckes in einer kleinen Kontaktfläche
DE502006009451D1 (de) Vorrichtung zur messung von erhöhungen und/oder vertiefungen einer oberfläche

Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: G03G 21/00

Ipc: H04N 1/60 (2006.01)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements