BR0203438A - Sistemas e métodos para determinar espectros usando algoritmos de mìnimos quadrados dinâmicos com medições a partir de sensor de cor de led - Google Patents
Sistemas e métodos para determinar espectros usando algoritmos de mìnimos quadrados dinâmicos com medições a partir de sensor de cor de ledInfo
- Publication number
- BR0203438A BR0203438A BR0203438-7A BR0203438A BR0203438A BR 0203438 A BR0203438 A BR 0203438A BR 0203438 A BR0203438 A BR 0203438A BR 0203438 A BR0203438 A BR 0203438A
- Authority
- BR
- Brazil
- Prior art keywords
- dynamic
- color sensor
- systems
- methods
- led color
- Prior art date
Links
- 238000005259 measurement Methods 0.000 title abstract 3
- 238000001228 spectrum Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 230000003595 spectral effect Effects 0.000 abstract 3
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
- G01J3/524—Calibration of colorimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/501—Colorimeters using spectrally-selective light sources, e.g. LEDs
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
"SISTEMAS E MéTODOS PARA DETERMINAR ESPECTROS USANDO ALGORITMOS DE MìNIMOS QUADRADOS DINâMICOS COM MEDIçõES A PARTIR DE SENSOR DE COR DE LED". Um espectrofotómetro baseado em diodo emissor de luz utiliza um algoritmo de reconstrução, baseado em informação espectral de uma fonte de iluminação e um espectrofotómetro de referência , para converter medições de múltiplos iluminadores integrados, de um sensor de cor não totalmente povoado por iluminadores, para uma curva espectral totalmente povoada, usando uma base de dados de referência. Um algoritmo de reconstrução espectral baseado em Mínimos Quadrados, dinâmico, usado para reconstruir espectros, dá maior importância aos dados da base de dados de referência na vizinhança da amostra de cor que está sendo medida. Isto é realizado usando operadores lineares.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/941,858 US6721692B2 (en) | 2001-08-30 | 2001-08-30 | Systems and methods for determining spectra using dynamic least squares algorithms with measurements from LED color sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
BR0203438A true BR0203438A (pt) | 2003-05-20 |
BR0203438B1 BR0203438B1 (pt) | 2014-11-04 |
Family
ID=25477175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0203438-7A BR0203438B1 (pt) | 2001-08-30 | 2002-08-29 | Método para determinar um espectro de refletância |
Country Status (4)
Country | Link |
---|---|
US (1) | US6721692B2 (pt) |
EP (2) | EP1867968B1 (pt) |
BR (1) | BR0203438B1 (pt) |
DE (2) | DE60227137D1 (pt) |
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US7471420B2 (en) * | 2005-03-31 | 2008-12-30 | Xerox Corporation | Method of uniformity correction in an electrostatographic printer by using a second actuator |
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US7557925B2 (en) * | 2005-08-15 | 2009-07-07 | X-Rite, Inc. | Optical instrument and parts thereof for optimally defining light pathways |
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US7557923B2 (en) * | 2005-09-12 | 2009-07-07 | University Of Kentucky Research Foundation | Method and system for in situ spectroscopic evaluation of an object |
JP2007188128A (ja) * | 2006-01-11 | 2007-07-26 | Omron Corp | カラー画像を用いた測定方法および測定装置 |
US7623278B2 (en) * | 2006-09-26 | 2009-11-24 | Xerox Corporation | MEMS Fabry-Perot inline color scanner for printing applications using stationary membranes |
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US7583418B2 (en) * | 2006-09-26 | 2009-09-01 | Xerox Corporation | Array based sensor to measure single separation or mixed color (or IOI) patches on the photoreceptor using MEMS based hyperspectral imaging technology |
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US7961322B2 (en) * | 2008-05-27 | 2011-06-14 | Xerox Corporation | Method for conditional application of color measurement error compensation in spectral sensors |
US8072646B2 (en) * | 2008-06-20 | 2011-12-06 | Xerox Corporation | Apparatus and method for color control of clear coated images on media |
US8254000B2 (en) * | 2008-10-22 | 2012-08-28 | Xerox Corporation | Matching printer custom target colors using in-line spectrophotometer |
US8390882B2 (en) * | 2009-08-07 | 2013-03-05 | Xerox Corporation | Systems and methods for estimating the color of coated prints |
EP2491708B1 (de) * | 2009-10-19 | 2018-02-14 | GMG GmbH & Co. KG | Verfahren zur erstellung einer optimierten druckerkalibrierung |
WO2011126486A1 (en) * | 2010-04-08 | 2011-10-13 | Metso Automation Inc. | Method of modeling the coloring process in moving web manufacturing |
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US9019358B2 (en) | 2011-02-08 | 2015-04-28 | Xerox Corporation | Method for classifying a pixel of a hyperspectral image in a remote sensing application |
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-
2001
- 2001-08-30 US US09/941,858 patent/US6721692B2/en not_active Expired - Fee Related
-
2002
- 2002-08-29 BR BRPI0203438-7A patent/BR0203438B1/pt not_active IP Right Cessation
- 2002-08-30 EP EP07018980A patent/EP1867968B1/en not_active Expired - Fee Related
- 2002-08-30 EP EP02019491A patent/EP1288640B1/en not_active Expired - Fee Related
- 2002-08-30 DE DE60227137T patent/DE60227137D1/de not_active Expired - Lifetime
- 2002-08-30 DE DE60239571T patent/DE60239571D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1288640A2 (en) | 2003-03-05 |
EP1288640B1 (en) | 2008-06-18 |
EP1867968B1 (en) | 2011-03-23 |
DE60239571D1 (de) | 2011-05-05 |
US6721692B2 (en) | 2004-04-13 |
BR0203438B1 (pt) | 2014-11-04 |
US20030055611A1 (en) | 2003-03-20 |
EP1288640A3 (en) | 2004-10-20 |
EP1867968A1 (en) | 2007-12-19 |
DE60227137D1 (de) | 2008-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 04/11/2014, OBSERVADAS AS CONDICOES LEGAIS. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 14A ANUIDADE. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |