公开(公告)号：US10337923B2

公开(公告)日：2019-07-02

申请号：US15703947

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

Inventor： Hasib Siddiqui ,  Magdi Mohamed ,  James Nash ,  Kalin Atanassov

IPC: H04N9/73 ,  G01J3/51 ,  G01J3/28 ,  G01J3/52 ,  G01J3/02

Abstract: Systems and methods are disclosed for processing spectral imaging (SI) data. A training operation estimates reconstruction matrices based on a spectral mosaic of an SI sensor, generates directionally interpolated maximum a-priori (MAP) estimations of image data based on the estimated reconstruction matrices. The training operation may determine filter coefficients for each of a number of cross-band interpolation filters based at least in part on the MAP estimations, and may determine edge classification factors based at least in part on the determined filter coefficients. The training operation may configure a cross-band interpolation circuit based at least in part on the determined filter coefficients and the determined edge classification factors. The configured cross-band interpolation circuit captures mosaic data using the SI sensor, and recovers full-resolution spectral data from the captured mosaic data.

公开(公告)号：US10337921B2

公开(公告)日：2019-07-02

申请号：US15527055

申请日：2015-10-28

Applicant: KONICA MINOLTA, INC.

Inventor： Mikio Uematsu

IPC: G01J3/51 ,  G01J1/04 ,  G01J3/46 ,  G09G5/02 ,  H04N1/60 ,  G01M11/02 ,  G01J3/50 ,  G01J3/52 ,  G01J3/02

Abstract: In a direct stimulus value reading type colorimetric photometer, first, second, and third colorimetric optical systems have spectral responsivities approximate to first, second, and third parts of the color matching function, respectively. A deriving unit derives a colorimetric value corresponding to a case in which the color matching function is selected as an evaluation function for colorimetry and a photometric value corresponding to a case in which the spectral luminous efficiency is selected as an evaluation function for photometry (i.e. “CASE”) from three signals. The spectral luminous efficiency is not consistent with any one of the first, second, and third parts. A fourth colorimetric optical system may have spectral responsivity approximate to the spectral luminous efficiency, and the deriving unit may derive the colorimetric value corresponding to the CASE from a fourth signal.

公开(公告)号：US20190195624A1

公开(公告)日：2019-06-27

申请号：US15854829

申请日：2017-12-27

Applicant: PaPaLaB Co., Ltd.

Inventor： Makoto KATO

IPC: G01B11/30 ,  G01J3/46 ,  G01J3/52 ,  G01J3/51 ,  G01J3/02

CPC classification number: G01B11/30 ,  G01J3/0208 ,  G01J3/462 ,  G01J3/465 ,  G01J3/51 ,  G01J3/52 ,  G06K9/4642 ,  G06K9/4652 ,  G06K9/6201 ,  G06K9/6212

Abstract: An object is to quantify the texture such as irregularity and gloss of a metal surface. Centers of Lab chromaticity distributions are identified (S145), and one of the Lab chromaticity distribution is entirely shifted (mapped) by deviations ΔA, ΔB and ΔL of a central coordinate, such that one of central coordinates of two distributions U1(L,a,b) and U2(L,a,b) matches with the other central coordinate (S146). A texture spread index that indicates a difference in spatial spread is then computed (S147). This configuration computes the spatial spread of the Lab chromaticity distribution in a three-dimensional space, and quantifies the irregularity of an inspection plane by diffraction phenomenon of illumination light. The difference in spread other than the color is applicable to evaluation of the irregularity of the metal surface or the like.

公开(公告)号：US10330534B2

公开(公告)日：2019-06-25

申请号：US15535871

申请日：2015-11-24

Applicant: KONICA MINOLTA, INC.

Inventor： Yoshiyuki Nagashima ,  Yuzuru Yamamoto

IPC: G01J3/52 ,  G01J3/02 ,  G01J3/46 ,  H04N1/00 ,  G01N21/86

Abstract: A backing member (50a) is pressed in a perpendicular direction (D3) by a predetermined sheet conveyed to a colorimetric position (P), and is disposed behind the predetermined sheet at the colorimetric position (P) when viewed from a colorimetric unit (40). A supporter (90) supports the backing member (50a) in a manner that the backing member (50a) can move in the perpendicular direction (D3). Holders (23a, 23b, 23c) hold a color tile member (80a) disposed on the backing member (50a) in a state that the amount of movement of the backing member (50a) in the perpendicular direction (D3) by the color tile member (80a) being thicker than the predetermined sheet and disposed on the backing member (50a) is larger than the amount of movement of the backing member (50a) in the perpendicular direction (D3) by the predetermined sheet.

公开(公告)号：US10311828B2

公开(公告)日：2019-06-04

申请号：US14344703

申请日：2012-08-09

Applicant: Kensuke Nagashima ,  Takafumi Kawakami ,  Atsuyoshi Deyama ,  Junro Yonemitsu

Inventor： Kensuke Nagashima ,  Takafumi Kawakami ,  Atsuyoshi Deyama ,  Junro Yonemitsu

IPC: G09G5/04 ,  G01J3/50 ,  G01J3/52 ,  G09G5/02 ,  G01J1/42 ,  G01J3/02

Abstract: A display light measurement method which can measure color representation of a various types of display devices regardless of the specification of the display device; a computer program, and a measurement system. A measurement device connected to an optical sensor can communicate with a target display device (information terminal) to be measured. The measurement device transmits content including a color patch to the display device to cause the display device to display the content and performs a measurement on the displayed content using the optical sensor. To perform measurements on many color patches, the measurement device repeats the following: when a measurement on one color patch being displayed is complete, the measurement device transmits content including another color patch to the display device to cause the display device to display the content and performs a measurement on the content being displayed.

公开(公告)号：US20190154507A1

公开(公告)日：2019-05-23

申请号：US16259007

申请日：2019-01-28

Applicant: Seiko Epson Corporation

Inventor： Tsugio GOMI

IPC: G01J3/46 ,  G01J3/52 ,  B41F33/00 ,  G01J3/26 ,  G01J3/50

CPC classification number: G01J3/46 ,  B41F33/0036 ,  G01J3/26 ,  G01J3/50 ,  G01J3/524

Abstract: A measuring device is a measuring device that performs colorimetry of an evaluation patch formed on a medium and a paper white patch that is a portion exposed by the medium. The measuring device has a light source portion that irradiates the medium with an illumination light, a measurement portion that acquires an amount of light from the medium as a measurement value, a memory that holds a paper white standard value that is a reference measurement value of the paper white patch, and a colorimetry unit that corrects a measurement value of the evaluation patch based on the measurement value of the paper white patch and the paper white standard value. Even in a case where a measurement position is changed, a reflectance of the evaluation patch is accurately calculated and a chromaticity of the evaluation patch can be accurately acquired.

公开(公告)号：US20190120694A1

公开(公告)日：2019-04-25

申请号：US16160584

申请日：2018-10-15

Applicant: APPLE INC. ,  INSTRUMENT SYSTEMS OPTISCHE MESSTECHNIK GMBH

Inventor： Ye YIN ,  Yi-Fan CHOU ,  Anuj BHATNAGAR

IPC: G01J3/50 ,  G01J3/52

Abstract: A spectro-colorimeter system for imaging pipeline is provided, the system including a camera system; a spectrometer system; and a controller coupling the camera system and the spectrometer system. In some embodiments the camera system is configured to provide a color image with the first portion of the incident light. Also, in some embodiments the spectrometer system is configured to provide a tristimulus signal from the second portion of the incident light. Furthermore, in some embodiments the controller is configured to correct the color image from the camera system using the tristimulus signal from the spectrometer. An imaging pipeline method for using a system as above is also provided. Further, a method for color selection in an imaging pipeline calibration is provided.

公开(公告)号：US10260943B2

公开(公告)日：2019-04-16

申请号：US15094779

申请日：2016-04-08

Applicant: X-Rite Switzerland GmbH

Inventor： Peter Ehbets ,  Matthias Scheller Lichtenauer

IPC: G01J3/02 ,  G01J3/50 ,  G01J3/52 ,  G01J3/46

Abstract: A color measurement device includes a measurement array (MA) which includes: a plurality of illumination arrays (20, 30, 40) for exposing a measurement spot (MS) on a measurement object (MO) to illumination light in an actual illumination direction (2, 3, 4) in each case, and a pick-up array (50) for detecting the measurement light reflected by the measurement spot (MS) in an actual observation direction (5) and for converting it into preferably spectral reflection factors; and a controller for the illumination arrays and the pick-up array and for processing the electrical signals produced by the pick-up array. The controller is embodied to process the measured reflection factors on the basis of a correction model, such that distortions in the measurement values as compared to nominal illumination and/or observation directions, caused by angular errors in the illumination arrays and/or the pick-up array, are corrected.

公开(公告)号：US10247609B2

公开(公告)日：2019-04-02

申请号：US15076961

申请日：2016-03-22

Applicant: Seiko Epson Corporation

Inventor： Masashi Kanai ,  Naoki Kuwata

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/10 ,  G01J3/50 ,  H05B37/02 ,  G01J1/42 ,  G01J3/26 ,  G01J3/52 ,  H04N1/60

Abstract: A spectrometry device includes a spectroscope, an extraneous light sensor, and a light intensity controller. The spectroscope includes a light source that emits illumination light to a medium and a wavelength-selective interference filter that performs spectroscopy on light incident from the medium. The extraneous light sensor detects the intensity of extraneous light which is incident on the medium. The light intensity controller controls the intensity of the illumination light emitted from the light source such that the light intensity ratio of the illumination light and the extraneous light is equal to a first value.

公开(公告)号：US10215640B2

公开(公告)日：2019-02-26

申请号：US15546458

申请日：2016-04-15

Applicant: WENZHOUJIAYI INSTRUMENTS Co. Ltd.

Inventor： Jiayi Qiu ,  Changjun Li ,  Guolin Lei ,  Jianda Shi ,  Yingsheng Zhan

IPC: G01J3/46 ,  G01J3/10 ,  G01J3/50 ,  G01J3/51 ,  G01J3/52

Abstract: The present invention discloses a method for performing color measurement using a standard light source color matching observation box. The method comprises: arranging a halogen tungsten lamp and a light filter in the color matching observation box for cooperation, wherein the light ray of the halogen tungsten lamp emits a main body radiation light ray through the light filter; arranging a plurality of narrow-wave LED light sources of different light-emitting wavelengths to emit a compensation light ray; mixing the main body radiation light ray and the compensation light ray in the color matching observation box into a mixed light ray that uniformly simulates a standard D illuminant; and performing a color measurement on a measured object in the color matching observation box by the mixed light ray.