公开(公告)号：EP0991924A1

公开(公告)日：2000-04-12

申请号：EP98922254.2

申请日：1998-05-13

Applicant: Imation Corp.

Inventor： EDGE, Christopher, J. ,  FISCHER, Timothy, A.

IPC: G01J3/46 ,  H04N1/60

CPC classification number: H04N1/6097 ,  G01J3/46 ,  G01J3/462 ,  G01J3/465 ,  G01J3/524 ,  H04N1/6027 ,  H04N1/603

Abstract: Characterizing a color imaging system involves generating color values representing colors of output samples of the color imaging system. The color values are converted into a device-independent color coordinate system using an adjustable white reference vector and a black reference vector. The white reference vector is calculated using the black reference vector. Color values can be transformed between color imaging systems using the device-independant color coordinate system.

公开(公告)号：EP0762093A3

公开(公告)日：1997-07-30

申请号：EP96117945.4

申请日：1993-03-11

Applicant: MILLIKEN RESEARCH CORPORATION

Inventor： Adams, Louis William, Jr.

IPC: G01J3/46 ,  D06P1/00 ,  H04N1/46

CPC classification number: G01J3/46 ,  G01J3/462 ,  G01J3/463 ,  G01J3/465 ,  G01J2003/466

Abstract: An apparatus and method for reproducing the color of blended colorants on an electronic display such as a cathode ray tube, liquid crystal display or other type of electronic device that utilizes RGB values. Predictions of blended colorants on or in substrates can be made from XYZ measurements of samples prepared with no colorants, one colorant, and pairs of colorants. The calculation method uses light absorption, light scattering, and light absorption blend coefficients. An image digitizer can be used to obtain XYZ values from samples. Furthermore, image digitizer RGB values are converted into XYZ values with a non-linear model using a simple method. Furthermore, the above process to generate XYZ values from image digitizer RGB values can be used to generate RGB values from XYZ values for electronic display.

公开(公告)号：EP0694160A4

公开(公告)日：1997-06-11

申请号：EP94914077

申请日：1994-04-07

Applicant: X RITE INC

Inventor： BOWDEN DAVID R ,  FRIEND TIMOTHY R ,  BAKER DOUGLAS V

IPC: G01J3/02 ,  G01J3/51 ,  G01N21/59 ,  G01N21/86

CPC classification number: G01J3/02 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/465 ,  G01J3/51 ,  G01J3/513 ,  G01N21/474 ,  G01N21/5907 ,  G01N2021/8654

Abstract: A portable colorimeter housing (100) has an upper portion (103) which is mounted on a lower portion (101) in a cantilever fashion and is adapted to receive sheets larger than the device for purposes of obtaining tri-stimulus color measurements. An adjustable paper guide (119) determines the distance that a sheet is inserted between upper (163) and lower (161) plates. A sheet to be measured inserted in the opening (109) will operate a micro switch (139) which activates a motor operative to advance the sheet between a motor driven drive wheel (135) in the lower plate (161) and an idler roller in the upper plate (171). Transmittance or reflectance measurements are taken by means of photodetector cells (242) including colorimetric filters. A user programmable processor performs pattern recognition and control functions.

Abstract translation: 便携式色度计外壳（100）具有上部（103），该上部以悬臂方式安装在下部（101）上，并适于接收比该设备更大的片材以达到三刺激颜色测量的目的。 可调整的纸张导向器（119）确定纸张在上（163）和下（161）板之间插入的距离。 插入开口（109）中的待测量片材将操作微动开关（139），该微动开关（139）启动马达，该马达操作以在下板（161）中的马达驱动的驱动轮（135） 上板（171）。 通过包括比色滤光片的光电检测器单元（242）进行透射率或反射率测量。 用户可编程处理器执行模式识别和控制功能。

公开(公告)号：EP0753725A2

公开(公告)日：1997-01-15

申请号：EP96110832.1

申请日：1996-07-04

Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

Inventor： Edge, Christopher J., c/o Minnesota Min and Man Co ,  Souter, John, c/o Minnesota Mining and Manufact Co

IPC: G01J3/46

CPC classification number: H04N1/6088 ,  G01J3/46 ,  G01J3/462 ,  G01J3/465 ,  H04N1/6027 ,  H04N1/603

Abstract: A system and method for color characterization and transformation obtain color data representing output of a color imaging system (56; 58), and convert the color data using a color space having a white reference vector (60) that is adjusted during the conversion. The white reference vector can be adjusted according to intensities of the color data being converted. Adjustment of the white reference vector serves to avoid nonuniformities for color imaging systems having different imaging bases, and thereby eliminates, or at least reduces, the amount of empirical adjustment necessary to obtain an acceptable visual match between the color imaging systems.

Abstract translation: 用于颜色表征和变换的系统和方法获得表示彩色成像系统（56; 58）的输出的颜色数据，并且使用具有在转换期间调整的白色参考矢量（60）的颜色空间来转换颜色数据。 可以根据被转换的颜色数据的强度来调整白色参考矢量。 白色参考矢量的调整用于避免具有不同成像基底的彩色成像系统的不均匀性，从而消除或至少减少为获得彩色成像系统之间可接受的视觉匹配所需的经验调整量。

公开(公告)号：EP0737850A2

公开(公告)日：1996-10-16

申请号：EP96105071.3

申请日：1996-03-29

Applicant: JENOPTIK Aktiengesellschaft

Inventor： Görlich, Steffen ,  Morgenstern, Thomas

IPC: G01J3/50

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/0278 ,  G01J3/465 ,  G01J3/50 ,  G01J3/501 ,  G01J2003/467

Abstract: Die Erfindung betrifft eine Anordnung zur Messung von Farben nicht selbstleuchtender Objekte.
Erfindungsgemäß wird die Aufgabe, eine kostengünstige Möglichkeit zur Farbmessung mit farbmetrischer Bewertung in standardisierten Farbnormen zu finden, dadurch gelöst, daß mindestens drei spektral unterschiedliche Lichtquellen, die den sichtbaren Spektralbereich lückenlos ausfüllen, in glanzunterdrückender Geometrie zum Empfangskanal angeordnet sind und im Empfangskanal, synchronisiert mit den Lichtquellen, nach dem trichomatischen Prinzip drei Remissionswerte aufgenommen werden, die jeweils über ein lineares Gleichungssystem verarbeitet werden, dessen Koeffizienten durch Anlernen mit normgerecht vermessenen, bekannten Farbmustern ermittelt werden.
Für den Anlernprozeß sind vorteilhaft die Methode der mehrfachen linearen Regression oder neuronale Netze einsetzbar.

Abstract translation: 色度计具有在可见光谱范围内具有不同光谱辐射特性的三个顺序操作的光源。 来自光源的光被辐射到测量表面上。 该装置具有用于测量从测量表面返回的光的接收通道。 辐射和返回的光具有抑制光泽的测量几何形状。 光源（1）的光谱辐射特性完全填满整个可见光谱范围而没有任何间隙。 光源具有光谱分布函数，其通过适当的光谱组合步骤适应正常光谱功能。 用于接收返回值的接收通道连接到分析仪。 信道与光源控制同步，使得对于根据三向测量原理所需的每个颜色值，接收至少一个返回值或缓解值。 在分析仪中提供了许多线性均衡器。 它们在学习过程中的系数是使用颜色模式设置的。 从颜色图案中已知的标准化颜色坐标与缓和值相结合，单独坐标的学习过程分别进行。

公开(公告)号：EP0694160A1

公开(公告)日：1996-01-31

申请号：EP94914077.0

申请日：1994-04-07

Applicant: X-RITE, INC.

Inventor： BOWDEN, David, R. ,  FRIEND, Timothy, R. ,  BAKER, Douglas, V.

IPC: G01J3 ,  G01N21

CPC classification number: G01J3/02 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/465 ,  G01J3/51 ,  G01J3/513 ,  G01N21/474 ,  G01N21/5907 ,  G01N2021/8654

Abstract: A portable colorimeter housing (100) has an upper portion (103) which is mounted on a lower portion (101) in a cantilever fashion and is adapted to receive sheets larger than the device for purposes of obtaining tri-stimulus color measurements. An adjustable paper guide (119) determines the distance that a sheet is inserted between upper (163) and lower (161) plates. A sheet to be measured inserted in the opening (109) will operate a micro switch (139) which activates a motor operative to advance the sheet between a motor driven drive wheel (135) in the lower plate (161) and an idler roller in the upper plate (171). Transmittance or reflectance measurements are taken by means of photodetector cells (242) including colorimetric filters. A user programmable processor performs pattern recognition and control functions.

公开(公告)号：EP0521881A1

公开(公告)日：1993-01-13

申请号：EP91905085.0

申请日：1991-02-21

Applicant: ABB PROCESS AUTOMATION INC.

Inventor： BURK, Gary, N.

IPC: G01J3 ,  G01N21

CPC classification number: G01J3/46 ,  G01J3/465 ,  G01J2003/467 ,  G01N21/86 ,  G01N2021/8663 ,  Y10S162/11

Abstract: La réflectance de pile est prédite à partir d'une mesure en ligne, se rapportant à la longueur d'onde, de la réflectance d'une feuille et de la mesure en ligne de l'opacité de la feuille à un intervalle de longueur d'onde. La réflectance de pile Rst est alors utilisée pour prédire et/ou régler la couleur de la pile, de préférence en utilisant le paramètre K/S = (1-Rst2)/2 Rst.

公开(公告)号：EP0375317A2

公开(公告)日：1990-06-27

申请号：EP89313197.9

申请日：1989-12-18

Applicant: E.I. DU PONT DE NEMOURS AND COMPANY

Inventor： Steenhoek, Larry E.

IPC: G01J3/50 ,  G01N21/47 ,  G01J3/36

CPC classification number: G01J3/50 ,  G01J3/0251 ,  G01J3/0256 ,  G01J3/10 ,  G01J3/463 ,  G01J3/465 ,  G01J3/502 ,  G01J3/504 ,  G01J3/524 ,  G01J2003/466 ,  G01N21/4738 ,  G01N2021/4711 ,  G01N2021/4771

Abstract: A portable colorimeter for characterizing the optical properties of a colored surface and in particular a colored surface containing metallic or pearlescent particles, which employs three multiangular spectrophotometric measurements to derive color constants for the surface. The colorimeter is a compact integrated unit housing irradiation, detection, control, analysis and display means and employs three illumination angles, preferably -30°, O°, and 65°, and one detection angle, preferably 45°, all measured from the sample normal. The method includes determining the tristimulus values of the color of the sample surface from low resolution spectral reflectance data preferably using twelve detector elements.

Abstract translation: 用于表征着色表面的光学性质的便携式色度计，特别是含有金属或珠光颗粒的着色表面，其使用三个多角度分光光度测量法来导出表面的颜色常数。 色度计是一个紧凑的一体化单元，容纳照射，检测，控制，分析和显示装置，并采用三个照明角度，优选-30°，0°和65°，一个检测角，最好是45°，全部从样品测量 正常。 该方法包括优选使用十二个检测器元件从低分辨率光谱反射率数据确定样品表面的颜色的三刺激值。

公开(公告)号：EP0250519A1

公开(公告)日：1988-01-07

申请号：EP87900167.0

申请日：1986-12-12

Applicant: BERTIN & CIE

Inventor： LEQUIME, Michel ,  MILLET, Jocelyn

IPC: A61C19 ,  G01J3

CPC classification number: G01J3/46 ,  A61C19/10 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0251 ,  G01J3/0256 ,  G01J3/2803 ,  G01J3/463 ,  G01J3/465 ,  G01J3/50 ,  G01J3/502 ,  G01J3/508 ,  G01J3/524 ,  G01J2003/2866 ,  G01J2003/467 ,  G01N2201/0623 ,  G01N2201/0806

Abstract: L'invention permet de déterminer la couleur à donner en particulier à une prothèse dentaire à partir de la mesure de la couleur des dents adjacentes dans la bouche du patient. Un instrument (44) à fibre optique permet de capter la lumière réfléchie par une dent (50) et de la transmettre à l'entrée d'un spectrocolorimètre (12, 14) associé à un microprocesseur (10), pour déterminer la réflectance spectrale diffuse de la dent et calculer les composantes trichromatiques de ses couleurs apparentes pour divers types d'éclairage. L'invention s'applique notamment à la détermination des couleurs des prothèses dentaires.

公开(公告)号：EP0214845A2

公开(公告)日：1987-03-18

申请号：EP86306845.8

申请日：1986-09-04

Applicant: THE UNIVERSITY OF LIVERPOOL

Inventor： Jones, Gordon Rees ,  Moruzzi, James Lodovico ,  Prasad, Akkanapragada Narayana

IPC: G01D5/34 ,  G01D5/26

CPC classification number: G01D5/34 ,  G01J3/465 ,  G01J3/513

Abstract: An apparatus for determining displacement of an object, comprises a light source (10) which propagates a polychromatic light signal along a path to a detector (22), the detector (22) being capable of detecting the intensity of incident radiation at a plurality of different wavelengths, and a radiation modulation means (16) mechanically coupled to said object for movement therewith, displacement of the object being arranged to cause displacement of the radiation modulating means (16) in said path such as to vary the distributed spectral content of the light reaching the detector (22).
In one embodiment the radiation modulation means comprises a filter (16) which attenuates the intensity of transmitted wavelengths to different degrees and which is mechanically coupled to said object such that movement of the object displaces the filter (16) so as to vary the extent to which the filter intercepts the radiation signal propagated by said light source (10).