公开(公告)号：EP3410101A1

公开(公告)日：2018-12-05

申请号：EP18173895.6

申请日：2018-05-23

申请人： Ricoh Company, Limited

发明人： WATANABE, Shuhei ,  SONE, Takuroh ,  KIHARA, Hideyuki ,  GOTOH, Takayuki ,  SOMA, Takashi ,  IWAMATSU, Akihiro

IPC分类号： G01N21/84 ,  G01N21/57 ,  G01N21/88

CPC分类号： G06T7/0002 ,  G01J2003/467 ,  G01N21/31 ,  G01N21/55 ,  G01N21/8422 ,  G01N2021/8829 ,  G06K9/38 ,  G06K9/4652 ,  G06K9/4661 ,  G06K2009/363 ,  G06K2009/4657 ,  G06T7/13 ,  G06T7/136 ,  G06T2207/30168 ,  H04N5/332

摘要： An evaluation device (100) includes a projector (110) configured to project a pattern (101) having an edge component onto an object (145), an imaging device (150) configured to capture an image of the object (145), a reflective-property correction unit (168) configured to correct an amount of change in shape of a virtual image of the pattern (101) reflected in the object (145), using reflective-property data of a surface of the object (145), and an evaluation-value calculator (169) configured to evaluate image clarity of the surface of the object (145) based on the corrected amount of change. A carrier means carrying computer readable code for controlling a computer system to carry out a method. The method includes correcting an amount of change in shape of a virtual image of the pattern (101) reflected in the object (145) based on image data that is obtained by capturing an object (145) onto which a pattern (101) having an edge component is projected, using reflective-property data of a surface of the object (145), and evaluating image clarity of the surface of the object (145) based on the corrected amount of change.

公开(公告)号：EP2391899A1

公开(公告)日：2011-12-07

申请号：EP09839376.2

申请日：2009-01-30

申请人： Hewlett-Packard Development Company, L.P.

发明人： AHARON, Michal ,  SHAKED, Doron ,  KESHET, Renato

IPC分类号： G01R29/08 ,  G01R23/16

CPC分类号： G01R29/0892 ,  G01J3/465 ,  G01J2003/467 ,  H04N1/6088

摘要： Embodiments of the present invention are directed to determining the spectral vector of electromagnetic radiation reflected from, transmitted through, or emitted from a sample using a set of n intensity measurements. In general, the spectral vector has a dimension k that is greater than the number of measured intensities n. However, in many cases, the physical and chemical constraints of a system, when properly identified and modeled, effectively reduce the number of unknowns, generally the k components of the spectral vector, to an extent that allows for the spectral vector to be characterized from a relatively small number n of measured intensities.

公开(公告)号：EP1573285A1

公开(公告)日：2005-09-14

申请号：EP03775677.2

申请日：2003-12-04

申请人： Koninklijke Philips Electronics N.V.

发明人： CHANG, Chin

IPC分类号： G01J3/46

CPC分类号： H04N1/48 ,  G01J3/46 ,  G01J3/465 ,  G01J3/501 ,  G01J3/51 ,  G01J2003/467 ,  H04L65/80 ,  H04L69/10 ,  H04L69/28 ,  H04L69/40

摘要： RGB filter set (520) and color estimation performance for RGB LED color sensing (500) is provided. A criteria function describing an error between desired color matching functions and a spectral response of an RGB filter set (520) is constructed. RGB filter set (520) response characteristics based on the criteria function are then determined. Finally, color estimation parameters for substantially optimal color estimation (500) with the RGB filter set (520) are determined based upon the determined RGB filter set (520) response characteristics. Computer readable code for constructing a criteria function is provided. Computer readable code for determining RGB filter set (520) response characteristics is also provided. Finally, computer readable code for determining color estimation parameters is provided.

公开(公告)号：EP1182960A1

公开(公告)日：2002-03-06

申请号：EP00922829.7

申请日：2000-05-03

申请人： Applied Spectral Imaging Ltd.

发明人： GIL, Tamir ,  CABIB, Dario ,  ADEL, Michael ,  BUCKWALD, Robert, A. ,  HORN, Eli

IPC分类号： A61B3/14

CPC分类号： G06T5/50 ,  A61B3/10 ,  A61B5/0059 ,  A61B5/0066 ,  A61B5/0275 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/14555 ,  A61B5/411 ,  A61B5/7257 ,  G01J3/2823 ,  G01J3/4406 ,  G01J3/462 ,  G01J3/50 ,  G01J3/502 ,  G01J3/51 ,  G01J2003/467 ,  G06T7/90 ,  G06T11/001 ,  G06T2207/10152 ,  G06T2207/30041

摘要： A spectral bio-imaging method for enhancing pathologic, physiologic, metabolic and health related spectral signatures of an eye tissue, the method comprising the steps of: (a) providing an optical device for eye inspection being optically connected to a spectral imager; (b) illuminating the eye tissue with light via the iris, viewing the eye tissue through the optical device and spectral imager and obtaining a spectrum of light for each pixel of the eye tissue; and (c) attributing each of the pixels a color or intensity according to its spectral signature, thereby providing an image enhancing the spectral signatures of the eye tissue.

摘要翻译： 一种用于增强眼组织的病理，生理，代谢和健康相关光谱特征的光谱生物成像方法，所述方法包括以下步骤：（a）提供用于眼睛检查的光学装置，光学连接到光谱成像器; （b）通过光圈照射眼组织，通过光学装置和光谱成像仪观察眼组织，并为眼组织的每个像素获得光谱; 和（c）根据其光谱特征将每个像素归为颜色或强度，由此提供增强眼组织的光谱特征的图像。

公开(公告)号：EP0737850A3

公开(公告)日：1997-06-11

申请号：EP96105071.3

申请日：1996-03-29

申请人： JENOPTIK Aktiengesellschaft

发明人： Görlich, Steffen ,  Morgenstern, Thomas

IPC分类号： G01J3/50

CPC分类号： G01J3/02 ,  G01J3/0218 ,  G01J3/0278 ,  G01J3/465 ,  G01J3/50 ,  G01J3/501 ,  G01J2003/467

摘要： 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.

公开(公告)号：EP0491131B1

公开(公告)日：1995-07-05

申请号：EP91117745.9

申请日：1991-10-17

申请人： Hewlett-Packard Company

发明人： Vincent, Kent D.

IPC分类号： G01J3/51

CPC分类号： G01J3/26 ,  G01J3/0272 ,  G01J3/12 ,  G01J3/2803 ,  G01J3/465 ,  G01J3/51 ,  G01J3/524 ,  G01J2003/1234 ,  G01J2003/467

公开(公告)号：EP0570003A3

公开(公告)日：1994-05-25

申请号：EP93107885.1

申请日：1993-05-14

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Tsuji, Hiroyuki ,  Suzuki, Kazuhiko ,  Watanabe, Keiko ,  Takagi, Atsushi, c/o TOYOTA JIDOSHA K.K. ,  Takaoka, Hitoshi, c/o TOYOTA JIDOSHA K.K. ,  Baba, Goro

IPC分类号： G06F15/72

CPC分类号： G01J3/28 ,  G01J3/2803 ,  G01J3/46 ,  G01J3/465 ,  G01J3/502 ,  G01J3/504 ,  G01J3/51 ,  G01J3/524 ,  G01J2001/448 ,  G01J2003/2826 ,  G01J2003/2866 ,  G01J2003/467 ,  G01N2021/575 ,  G06T15/50

摘要： A rendering apparatus includes: a radiant-energy calculating device for determining a spectral radiance for each infinitesimal area of an object by using a spectral radiance of a light source irradiating the object, a spectral reflectance in the infinitesimal area of the object, and a spectral reflectance factor in a wide area of the object; a color-specification-value calculating device for calculating color specification values of a colorimetric system on the basis of the spectral radiance obtained for each infinitesimal area; a transforming device for transforming the color specification values into image data for displaying an image of the object; and a display device for displaying the image of the object on the basis of the image data.

公开(公告)号：EP0250519B1

公开(公告)日：1991-05-22

申请号：EP87900167.5

申请日：1986-12-12

申请人： BERTIN & CIE

发明人： LEQUIME, Michel ,  MILLET, Jocelyn

IPC分类号： A61C19/10 ,  G01J3/50

CPC分类号： 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

摘要： The invention makes it possible to determine the colour to be given particularly to a dental prosthesis from the measurement of the colour of adjacent teeth in the mouth of the patient. An optical fiber instrument (44) senses the light reflected by a tooth (50) and transmits the light to the input of a spectrocolorimeter (12, 14) associated with a microprocessor (10) in order to determine the spectral reflectance diffused by the tooth and to calculate the trichromatic components of its apparent colours for various types of lighting. The invention applies particularly to the determination of colours of dental prostheses.

公开(公告)号：EP2391899A4

公开(公告)日：2017-12-27

申请号：EP09839376

申请日：2009-01-30

申请人： HEWLETT-PACKARD DEV COMPANY L P

发明人： AHARON MICHAL ,  SHAKED DORON ,  KESHET RENATO

IPC分类号： G01J3/46 ,  G01J3/28 ,  G01J3/51 ,  H04N1/60

CPC分类号： G01R29/0892 ,  G01J3/465 ,  G01J2003/467 ,  H04N1/6088

摘要： Embodiments of the present invention are directed to determining the spectral vector of electromagnetic radiation reflected from, transmitted through, or emitted from a sample using a set of n intensity measurements. In general, the spectral vector has a dimension k that is greater than the number of measured intensities n. However, in many cases, the physical and chemical constraints of a system, when properly identified and modeled, effectively reduce the number of unknowns, generally the k components of the spectral vector, to an extent that allows for the spectral vector to be characterized from a relatively small number n of measured intensities.

公开(公告)号：EP1938063B1

公开(公告)日：2011-12-21

申请号：EP06801566.8

申请日：2006-08-15

申请人： X-Rite Incorporated

发明人： NISPER, Jon, K. ,  MATER, Michael, J. ,  BERG, Bernard, J.

IPC分类号： G01J3/50

CPC分类号： G01J3/10 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0275 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/26 ,  G01J3/28 ,  G01J3/50 ,  G01J3/501 ,  G01J3/51 ,  G01J3/513 ,  G01J3/524 ,  G01J2003/1213 ,  G01J2003/1282 ,  G01J2003/2866 ,  G01J2003/467

摘要： An optical assembly for use with a spectrophotometer. The optical assembly may comprise an illumination source, a detection sensor, a monitor sensor, and an optical piece having a first side adapted to face a sample. The optical piece may define an illumination channel extending from the illumination source toward the first side. The optical piece may also define a detection channel extending from the first side toward the detection sensor, hi addition, the optical piece may define a monitor channel extending from the illumination channel toward the monitor sensor. Also, a light emitting diode (LED) assembly for use with an optical measurement device. The LED assembly may comprise a substrate having a top surface and a bottom surface and a plurality of LED dies positioned on the substrate to emit light in a first direction normal to the bottom surface of the substrate. The LED assembly may also comprise a plurality of leads in electrical contact with the plurality of LED dies. The plurality of leads may be positioned on the bottom surface of the substrate, and may be configured to surface-mount to a board.