公开(公告)号：US09952102B1

公开(公告)日：2018-04-24

申请号：US15628803

申请日：2017-06-21

Applicant: Datacolor Holding AG

Inventor： Zhiling Xu ,  Michael H. Brill

IPC: G01N21/25 ,  G01J3/52 ,  G01J3/02 ,  G01J3/46 ,  G01J3/51

CPC classification number: G01J3/524 ,  G01J3/0297 ,  G01J3/46 ,  G01J3/462 ,  G01J3/465 ,  G01J3/51 ,  G01J3/513 ,  G01N21/25

Abstract: In one example, an electronic signal is received from a target color measurement instrument that includes a plurality of color channels. A response of the target color measurement instrument to a light emitted by a target light emitting device is extracted from the signal. The response is calibrated to minimize a difference between the response and an output of a color matching function of a standard observer. Calibrating includes multiplying the response by a calibration matrix. The calibration matrix combines measurements of a first plurality of lights from a tunable light source and measurements of a second plurality of lights from the target light emitting device. A first subset of the measurements of the first plurality and second plurality of lights are made by the target color measurement instrument and a second subset of the measurements of the first plurality and second plurality of lights are made by a reference spectroradiometer.

公开(公告)号：US09894340B2

公开(公告)日：2018-02-13

申请号：US15368022

申请日：2016-12-02

Applicant: RAH COLOR TECHNOLOGIES LLC

Inventor： Richard A. Holub

IPC: G09G5/02 ,  H04N9/73 ,  G01J3/02 ,  G01J3/18 ,  G01J3/28 ,  G01J3/50 ,  G03B27/54 ,  H04N1/60 ,  H04N9/31 ,  H04N9/68 ,  H04N17/02 ,  H04N9/09 ,  H04N17/04 ,  G06T7/80 ,  G06T7/90 ,  H04N9/12 ,  G01J3/46 ,  G01N21/27 ,  G09G3/34

CPC classification number: H04N9/735 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0218 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/28 ,  G01J3/462 ,  G01J3/463 ,  G01J3/50 ,  G01J3/506 ,  G01J2003/2866 ,  G01J2003/466 ,  G01N21/274 ,  G03B27/547 ,  G06T7/80 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/20072 ,  G09G3/3413 ,  G09G5/02 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/147 ,  H04N1/6033 ,  H04N1/6052 ,  H04N9/09 ,  H04N9/12 ,  H04N9/3182 ,  H04N9/3194 ,  H04N9/68 ,  H04N9/73 ,  H04N17/02 ,  H04N17/045

Abstract: Color calibration of color image rendering devices, such as large color displays, which operate by either projection or emission of images, utilize internal color measurement instrument or external color measurement modules locatable on a wall or speaker. A dual use camera is provided for a portable or laptop computer, or a cellular phone, handset, personal digital assistant or other handheld device with a digital camera, in which one of the camera or a display is movable with respect to the other to enable the camera in a first mode to capture images of the display for enabling calibration of the display, and in a second mode for capturing image other than of the display. The displays may represent rendering devices for enabling virtual proofing in a network, or may be part of stand-alone systems and apparatuses for color calibration. Improved calibration is also provided for sensing and correcting for non-uniformities of rendering devices, such as color displays, printer, presses, or other color image rendering device.

公开(公告)号：US09894338B2

公开(公告)日：2018-02-13

申请号：US15155488

申请日：2016-05-16

Applicant: RAH COLOR TECHNOLOGIES LLC

Inventor： Richard A. Holub

IPC: G09G5/02 ,  H04N9/64 ,  G01J3/02 ,  G01J3/28 ,  G01J3/46 ,  G01J3/52 ,  H04N1/60 ,  G01J3/51 ,  G03F7/20 ,  H04N17/02 ,  G01B11/00 ,  G01J3/50 ,  G06T5/00 ,  G06T5/40 ,  H04N9/69 ,  G06T7/90 ,  G01J3/18

CPC classification number: H04N9/646 ,  G01B11/002 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0224 ,  G01J3/0262 ,  G01J3/0291 ,  G01J3/1838 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/46 ,  G01J3/462 ,  G01J3/463 ,  G01J3/465 ,  G01J3/505 ,  G01J3/51 ,  G01J3/524 ,  G01J2003/283 ,  G01J2003/2866 ,  G03F7/70058 ,  G06T5/005 ,  G06T5/40 ,  G06T7/90 ,  G09G5/02 ,  G09G2320/0276 ,  G09G2320/043 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2320/08 ,  H04N1/6055 ,  H04N1/6058 ,  H04N9/643 ,  H04N9/69 ,  H04N17/02

Abstract: In a color imaging system, multiple rendering devices are provided at different nodes along a network. Each rendering device has a color measurement instrument for calibrating the color presented by the rendering device. A rendering device may be a printer in which the measuring of color samples on a sheet rendered by the printer is provided by a sensor coupled to a transport mechanism which moves the sensor and sheet relative to each other, where the sensor provides light from the samples to a spectrograph. A rendering device may also be a display having a member supporting a color measuring instrument for receiving light from an area of the screen. The color measuring instruments provide for non-contact measurements of color samples rendered on a display or a sheet, and are self-calibrating by the use of calibration references.

公开(公告)号：US09874476B2

公开(公告)日：2018-01-23

申请号：US14360926

申请日：2012-11-14

Applicant: AXALTA COATING SYSTEMS IP CO., LLC

Inventor： Wilhelm Kettler ,  Peter Jelen ,  Oliver Korten

IPC: G01J3/46 ,  G01J3/02 ,  G01J3/50 ,  G01N21/47 ,  G01N21/57

CPC classification number: G01J3/463 ,  G01J3/0251 ,  G01J3/46 ,  G01J3/462 ,  G01J3/504 ,  G01N21/4785 ,  G01N21/57

Abstract: The invention relates to a method for colour recipe calculation for matt colour standards with the steps: A) experimentally determining reflection spectra R(exp) of the color standard, comprising a first reflection spectrum (SPIN) and a second reflection spectrum (SPEX), with an integrating sphere color measurement instrument, wherein said first reflection spectrum (SPIN) is obtained at (A1) d/8°—geometry with the specular component included, and said second reflection spectrum (SPEX) is obtained at (A2) d/8°—geometry with the specular component excluded; B1) calculating a recipe for the matt color standard based on the experimentally determined reflection spectrum R(exp) with the specular component included, which has been corrected for the specular component, or B2) comparing the experimentally determined reflection spectrum R(exp) with the specular component included, which has been corrected for the specular component, with reflection spectra associated to color recipes of a color recipe database for glossy color shades and identifying from said color recipe database a stored reflection spectrum which comes closest to the experimentally determined reflection spectrum R(exp) of the matt color standard, as well as the associated colour recipe; C) converting reflection spectra data of the experimentally determined reflection spectra (SPIN, SPEX) of the matt colour standard to gloss values, and D) converting the gloss values obtained to the amount of matting agent (MAA) with the assistance of previously prepared calibration curves for the available colorant system.

公开(公告)号：US20170261310A1

公开(公告)日：2017-09-14

申请号：US15343733

申请日：2016-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Hyo EUN ,  Ju Hyun SONG ,  Jae Sung KIM ,  Tae Hee SONG ,  Shin Min RHEE

IPC: G01B11/00 ,  G01J3/50

CPC classification number: G01B11/002 ,  G01J3/462 ,  G01J3/50 ,  G01J3/505 ,  G01N21/253 ,  G01N2021/9511 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49107 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: An apparatus includes a lighting unit configured to irradiate a light emitting device package including a light transmitting resin containing a light conversion material with light having a certain color; a camera configured to capture an image of the light emitting device package; and a controller configured to determine color coordinates of the light emitting device package using the image, captured by the camera, to determine whether the light emitting device package is defective.

公开(公告)号：US20170206641A1

公开(公告)日：2017-07-20

申请号：US15291691

申请日：2016-10-12

Applicant: Realtek Semiconductor Corp.

Inventor： Wei-Te CHANG ,  Shih-Tse CHEN

IPC: G06T5/00

CPC classification number: G06T5/005 ,  G01J3/462 ,  G01J3/50 ,  G06T5/007 ,  G06T2207/10024 ,  H04N1/6077 ,  H04N9/73 ,  H04N17/02

Abstract: A method for generating a pixel filtering boundary required by the auto white balance (AWB) calibration is proposed. The method includes: taking a specific color temperature reference point as a center and dividing a G/B-G/R color space into six color regions having different color component relationships; based on a saturation calculating approach of a HSV color space, respectively identifying six color boundaries in the six color regions to generate a specific hexagonal filtering boundary, so that each color boundary has a predetermined saturation difference with the specific color temperature reference point; adopting the approach for generating the specific hexagonal filtering boundary to respectively identify multiple hexagonal filtering boundaries corresponding to other color temperature reference points; generating an enveloping boundary as a pixel filtering boundary based on the specific hexagonal filtering boundary and the multiple hexagonal filtering boundaries.

公开(公告)号：US20170180725A1

公开(公告)日：2017-06-22

申请号：US15452282

申请日：2017-03-07

Applicant: Color Match, LLC

Inventor： Peter H. MUI

IPC: H04N17/00 ,  H04N17/02 ,  G01J3/52 ,  G06T7/90 ,  G06K9/62 ,  H04N1/60 ,  H04N9/077

CPC classification number: H04N9/04 ,  G01J3/462 ,  G01J3/463 ,  G01J3/52 ,  G01J3/522 ,  G06K9/6202 ,  G06T7/90 ,  G06T2207/10024 ,  H04N1/6008 ,  H04N1/6033 ,  H04N9/077 ,  H04N17/002 ,  H04N17/02

Abstract: Embodiments described herein disclose a color measurement device and method for use with cameras or other imaging devices. The color measurement device may be configured to determine many different colors via a commonly owned device. Embodiments utilize sinusoidal grayscale rings to determine an exact color match of an unknown color, even if there is perspective distortion of an obtained image.

公开(公告)号：US20170146406A1

公开(公告)日：2017-05-25

申请号：US15114644

申请日：2016-01-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Gang YANG

IPC: G01J3/50 ,  G01N21/25 ,  G01N21/17 ,  G02F1/13 ,  G01J3/46

CPC classification number: G01J3/506 ,  G01J3/46 ,  G01J3/462 ,  G01J2003/467 ,  G01N21/1717 ,  G01N21/251 ,  G02F1/1309

Abstract: A method and a device for determining a yellowish level of a screen caused by pressing are provided. The method includes: acquiring chromaticity coordinates of a plurality of test points of the screen during a pressing test; processing the acquired chromaticity coordinates, so as to acquire a chromatic aberration between the test point with a maximum value of X or a maximum value of Y in the chromaticity coordinates and the test point with a minimum value of X or a minimum value of Y in the chromaticity coordinates; and comparing the chromatic aberration with a predetermined standard chromatic aberration, so as to determine whether the screen is qualified after the pressing test.

公开(公告)号：US09534957B2

公开(公告)日：2017-01-03

申请号：US14511464

申请日：2014-10-10

Applicant: SONY CORPORATION

Inventor： Kunihiko Nagamine ,  Satoshi Tomioka

IPC: G01J3/50 ,  G01J3/46 ,  H04N17/02

CPC classification number: G01J3/506 ,  G01J3/462 ,  H04N17/02

Abstract: An unevenness inspection apparatus including: an image pickup section obtaining a pickup image of a test object; an image generating section generating each of a color unevenness inspection image and a luminance unevenness inspection image based on the pickup image; a calculating section calculating an evaluation parameter using both of the color unevenness inspection image and the luminance unevenness inspection image; and an inspecting section performing unevenness inspection using the calculated evaluation parameter. The calculating section calculates the evaluation parameter in consideration of unevenness visibility for both color and luminance.

Abstract translation: 一种不均匀性检查装置，包括：图像拾取部件，其获得测试对象的拾取图像; 图像生成部，其基于所述拍摄图像生成颜色不均匀性检查图像和亮度不均匀性检查图像; 计算部，使用所述颜色不均匀检查图像和所述亮度不均匀检查图像两者来计算评价参数; 以及使用所计算的评价参数进行不均匀性检查的检查部。 考虑到颜色和亮度两者的不均匀性可见度，计算部分计算评价参数。

公开(公告)号：US20160295659A1

公开(公告)日：2016-10-06

申请号：US15085643

申请日：2016-03-30

Applicant: MoJo Labs, Inc.

Inventor： Morgan Jones

IPC: H05B33/08 ,  H05B37/02 ,  G01J3/46 ,  G01J1/42 ,  G01J3/50

CPC classification number: H05B33/0872 ,  G01J1/4204 ,  G01J3/462 ,  G01J3/505 ,  G01J2003/467 ,  H05B37/0218 ,  H05B37/0272 ,  H05B37/0281 ,  Y02B20/341 ,  Y02B20/42

Abstract: A light sensor is disclosed that includes a photosensor; a memory; a communication interface; and a controller coupled with the photo sensor, the communication interface, and the memory. The controller may be configured to perform a number of operations. For example, the controller may be configured to sample from the photosensor a light intensity of light within a first spectral range at a non-task location within an architectural space; and determine a change in the first spectral range output of a light source to produce a desired amount of light within the first spectral range at a task location based on the sensed light intensity of the color channel at the non-task location. In some embodiments, the task location and the non-task locations are different locations within the architectural space. The controller may also be configured to transmit the change in the color channel output to a light source.

Abstract translation: 公开了一种光传感器，其包括光传感器; 记忆 通信接口; 以及与光传感器，通信接口和存储器耦合的控制器。 控制器可以被配置为执行多个操作。 例如，控制器可以被配置为在建筑空间内的非任务位置处从光电传感器采样第一光谱范围内的光强度; 并且基于在所述非任务位置处的所述颜色通道的所感测的光强度，确定光源的第一光谱范围输出的变化，以在任务位置处的所述第一光谱范围内产生期望量的光。 在一些实施例中，任务位置和非任务位置是建筑空间内的不同位置。 控制器还可以被配置为将颜色通道输出中的变化传送到光源。