公开(公告)号：US20220192100A1

公开(公告)日：2022-06-23

申请号：US17442243

申请日：2020-06-08

Applicant: YARA INTERNATIONAL ASA

Inventor： Idaly ALI ,  Robin YEO ,  Muhammad IZUDDIN ,  Navin TWARAKAVI

IPC: A01G7/00 ,  G01J3/52

Abstract: A method of determining health of a plant which method includes displaying, on a screen of an electronic display of a mobile computing device, a digital leaf colour chart with colours ranging from yellow green to dark green; displaying on the screen next to the digital leaf colour chart a white area on which a leaf of the plant is to be placed; receiving input to the mobile computing device from a user about which colour of the digital leaf colour chart that best matches the leaf placed on the white area; and the mobile computing device determining the plant health based on the received input.

公开(公告)号：US11193830B2

公开(公告)日：2021-12-07

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: H04N17/00 ,  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：US20210329144A1

公开(公告)日：2021-10-21

申请号：US17230916

申请日：2021-04-14

Applicant: Yuki Matsushima ,  Takuroh Sawada

Inventor： Yuki Matsushima ,  Takuroh Sawada

IPC: H04N1/60 ,  G01J3/52

Abstract: An image processing apparatus includes control circuitry. The control circuitry is configured to: acquire first image data to be subjected to color conversion; and convert the first image data acquired, into second image data in which a dot area ratio of a target process color of process colors indicated by the first image data is distributed into a distributed dot area ratio of a fluorescent color different from the target process color and a distributed dot area ratio of the target process color.

公开(公告)号：US11140275B2

公开(公告)日：2021-10-05

申请号：US16553237

申请日：2019-08-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Ayako Kobayashi ,  Haruki Asakura ,  Shiori Naruse ,  Masayuki Inoue

IPC: H04N1/60 ,  H04N1/00 ,  G01J3/52 ,  G01J3/50 ,  B41J2/21

Abstract: A PC presents, to a user, a difference between an actual speed and an ideal speed, the actual speed being a moving speed of a colorimeter when the user moves the colorimeter with respect to a color chart, the ideal speed being a moving speed of the colorimeter ideal for color measurement on the color chart.

公开(公告)号：US11112311B2

公开(公告)日：2021-09-07

申请号：US16165144

申请日：2018-10-19

Applicant: Hauke Maritz Liefferink

Inventor： Hauke Maritz Liefferink

IPC: G01J3/52 ,  H04N1/40 ,  H04N1/60

Abstract: The invention provides a press operator target for facilitating visual verification of colour accuracy in printed colour matter against an ideal colour proof. The invention also includes so-called Light/Master/Dark (“LMD”) standards for visually accessing colour variation that is acceptable in a particular print design and to aid a press operator in decision making in order to achieve a better proof to print match. Finally the aforementioned items are assembled into a colour proof assembly, which includes the press operator target, as well as the LMD standards.

公开(公告)号：US20210272320A1

公开(公告)日：2021-09-02

申请号：US17141662

申请日：2021-01-05

Applicant: X-RITE, INCORPORATED

Inventor： Christian BOES ,  Thomas RICHARDSON ,  Richard John Van ANDEL ,  David BOSSCHER ,  David SALYER

IPC: G06T7/90 ,  G06T7/11 ,  G01J3/51 ,  G01N21/57 ,  G01J3/02 ,  G01J3/46 ,  G01J3/10 ,  G01J3/52

Abstract: A hyperspectral imaging spectrophotometer and system, with calibration, data collection, and image processing methods designed to match human visual perception and color matching of complex colored objects.

公开(公告)号：US20210190592A1

公开(公告)日：2021-06-24

申请号：US17134878

申请日：2020-12-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi TOYA

IPC: G01J3/52 ,  G01J3/46 ,  G01J3/26 ,  G01J3/28

Abstract: Provided is a measurement device including a spectroscope, a movement mechanism configured to relatively move the spectroscope along a first direction with respect to the measurement target, and one or more processors configured to execute detecting a measurement error indicating that spectroscopic measurement processing by the spectroscope is not executed normally, and controlling the spectroscope and the movement mechanism, in which the one or more processors, when the measurement target is a plurality of color patches arranged along the first direction, cause the spectroscope to execute first measurement processing of measuring light with a specific wavelength set in advance while relatively moving the spectroscope in the first direction to acquire a measured value with respect to the specific wavelength obtained by the first measurement processing and a position of the spectroscope, and when the measurement error is detected, move the spectroscope to a position where an amount of variation of the measured value is greater than or equal to a threshold value in a second direction opposite to the first direction and then move the spectroscope in the first direction.

公开(公告)号：US20200284656A1

公开(公告)日：2020-09-10

申请号：US16754608

申请日：2018-10-18

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Yoshihiko OGINO ,  Keiichi GANBE ,  Kazumasa ONUKI ,  Takahiro SAHARA ,  Yoichi KAJIMURA

IPC: G01J3/10 ,  G01J3/52

Abstract: A color calibration viewer used in color calibration, wherein: the relative intensity at a wavelength of 505 nm is 0.80 or more and 0.95 or less, and the relative intensity at a wavelength of 620 nm is 0.65 or more and 0.80 or less, where 1 designates the optical intensity of a peak top in a first wavelength region at a wavelength of 440 nm or more and 470 nm or less; and the ratio (A/B) of A and B is 1.00 or more and 1.46 or less, where A designates the optical intensity at a wavelength of 505 nm, and B designates the optical intensity at a wavelength of 620 nm.

公开(公告)号：US10724901B2

公开(公告)日：2020-07-28

申请号：US16291691

申请日：2019-03-04

Applicant: X-Rite Europe GmbH

Inventor： Peter Ehbets ,  Matthias Scheller Lichtenauer

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

Abstract: A colour 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：US10593291B2

公开(公告)日：2020-03-17

申请号：US14857321

申请日：2015-09-17

Applicant: Apple Inc.

Inventor： Zhang Jia ,  Amy M. Winkler ,  Christopher S. Erickson ,  Zhen Zhang ,  David W. Ritter

IPC: G09G5/02 ,  G09G5/06 ,  G09G3/34 ,  G01J3/50 ,  G01J3/02 ,  G01J3/52 ,  G01J3/10 ,  G01J3/46 ,  G01J3/51

Abstract: An electronic device may be provided with a color sensing ambient light sensor. The color sensing ambient light sensor may measure the color of ambient light. Control circuitry in the electronic device may use information from the color sensing ambient light sensor in adjusting a display in the electronic device or taking other action. The color sensing ambient light sensor may have light detectors with different spectral responses. A test system may be used to calibrate the color sensing light sensor. The test system may have a tunable light source with light-emitting diodes that are turned on in sequence while gathering measured responses from the detectors. Numerical optimization techniques may be used to produce final versions of the spectral responses for the light detectors from the measured responses and corresponding calibration data that is stored in the electronic device.