公开(公告)号：US12251278B2

公开(公告)日：2025-03-18

申请号：US17431747

申请日：2020-03-10

Applicant: Dental Imaging Technologies Corporation

Inventor： Yannick Glinec ,  Victor C. Wong

IPC: A61C13/08 ,  A61C9/00 ,  G01J3/50 ,  G06T7/90

Abstract: A shade matching method for a tooth obtains a plurality of digitized tooth shade references, obtains a three-dimensional (3D) surface representation of a tooth and associated color information defined on the three-dimensional (3D) surface, selects a region on the three-dimensional (3D) surface representation of the tooth, determines a plurality of correspondences with the common tooth shape of all the tooth shade references, computes color difference with each of the tooth shade reference from the plurality of tooth shade references, and records the label corresponding to the shade reference with a smallest difference.

公开(公告)号：US12247881B2

公开(公告)日：2025-03-11

申请号：US17171458

申请日：2021-02-09

Applicant: Sapphire IP, Inc.

Inventor： Michael Piscitelli

IPC: G01J3/50 ,  G01J1/44 ,  G02B5/10

Abstract: An apparatus is provided for measuring far-field luminous intensity and color characteristics of a light source that includes a lamp test location for receiving a lamp for testing and a mirror positioned in a fixed light receiving position relative to the lamp test location and positioned in a fixed light transmitting position for reflecting a light beam from the lamp at a predetermined angle relative to the light receiving position. A measurement screen is positioned in a location relative to the mirror to receive the parabolically-condensed light image reflected from the mirror at the predetermined angle and a light detector is positioned to capture a light image reflected from the measurement screen. The light detector is configured to convert the reflected light image on the measurement screen to a digital signal and output the digital signal. A computer is configured for receiving and processing the digital signal corresponding to the reflected light image and calibrated for measuring luminous intensity according to an algorithm programmed in the computer.

公开(公告)号：US20250061831A1

公开(公告)日：2025-02-20

申请号：US18721720

申请日：2022-12-21

Applicant: Sony Interactive Entertainment Inc.

Inventor： Makoto Koizumi

IPC: G09G3/20 ,  G01J3/50 ,  G06F3/01 ,  G09G3/00

Abstract: A head mounted display includes a first display unit for displaying an image of a center part of a display image and a second display unit for displaying an image of the outside thereof, and the images are combined by a half mirror for visual recognition. On the basis of the chromaticities of the first display unit and the second display unit measured by a chromoscope from a position similar to the viewpoint of a user, a calibration device calculates a color conversion matrix by which colors in a common color gamut are visually recognized, and outputs it in association with the display unit.

公开(公告)号：US20250052618A1

公开(公告)日：2025-02-13

申请号：US18717576

申请日：2022-12-08

Applicant: Improve Process Analytics and Control GmbH

Inventor： Christian Sallinger

IPC: G01J3/50 ,  B41J2/21 ,  B41J29/00

Abstract: A method for spectrally measuring colour density in colour printing, in which a spectrally resolved reference reflectance is measured for an unprinted substrate with a spatially resolved spectral measuring system at a plurality of measuring points. At least one colour measuring field, preferably a plurality of colour measuring fields, is printed with a printing ink using a colour printer. The spectrally resolved reflectance for at least one colour measuring field is measured with the spatially resolved spectral measuring system at a plurality of measuring points and in which a colour density for the printing ink is calculated for each measuring point from the spectral distribution of the measured reflectance. The measured reference reflectance and a spectral weighting function representing the printing ink. The invention solves the technical problem of improving spectral colour density measurement in colour printing.

公开(公告)号：US20250046232A1

公开(公告)日：2025-02-06

申请号：US18709190

申请日：2022-11-11

Applicant: LG ELECTRONICS INC.

Inventor： Myoungsuk CHAE ,  Jongmyeong LIM ,  Byungchang CHA ,  Geunyong KIM ,  Younggu CHUNG ,  Sungjin KANG ,  Sangkyu KANG ,  Haktae KIM ,  Kyuheon LEE ,  Seungho RYOO ,  Sangtae PARK ,  Jonggon SHIN

IPC: G09G3/32 ,  G01J3/50 ,  G06T7/90 ,  G09G3/00 ,  H01L25/16

Abstract: A method for calibrating a LED display device, according to one embodiment of the present invention, comprises the steps of: providing one module composed of a plurality of pixels; providing a cabinet composed of a plurality of modules; providing an LED display device composed of a plurality of cabinets; and calibrating by cell unit, which is larger than the size of the pixel and is smaller than the size of one module.

公开(公告)号：US12210302B2

公开(公告)日：2025-01-28

申请号：US18479907

申请日：2023-10-03

Applicant: Konica Minolta, Inc.

Inventor： Hokuto Hatano ,  Shunichi Takaya ,  Kazuhiro Saito

IPC: G03G21/00 ,  G01J3/50 ,  G03G15/20

Abstract: An image forming apparatus includes: an image carrier; a solid lubricant; a lubricant application member that scrapes off the solid lubricant and applies the scraped solid lubricant to a surface of the image carrier; a colorimeter that performs colorimetry of a colorimetric surface of the solid lubricant; and a hardware processor that sets a lubricant application condition such that a predetermined amount of lubricant is applied on the basis of a colorimetric result obtained by the colorimeter.

公开(公告)号：US12181341B2

公开(公告)日：2024-12-31

申请号：US17631896

申请日：2020-08-01

Applicant: BASF Coatings GmbH

Inventor： Guido Bischoff

IPC: G01J3/46 ,  G01J3/50

Abstract: Described herein is a computer-implemented method for providing a match metric for matching and adjusting color of a target coating and at least one sample coating, the method including at least the steps of: obtaining, via at least one communications interface, spectral curve(s) of the target coating and spectral curves of the sample coating determined at at least one gloss geometry; producing normalized first derivative values of the normalized spectral curves of the target coating and of the sample coating; producing difference values between the normalized first derivative values of the target coating and of the sample coating; producing a first match metric for the target coating and the sample coating based at least on the difference values produced for the at least one gloss geometry; and producing the match metric based on the first match metric. Also described herein is a respective system.

公开(公告)号：US12174073B2

公开(公告)日：2024-12-24

申请号：US17755885

申请日：2020-11-12

Applicant: BASF COATINGS GMBH

Inventor： Guido Bischoff ,  Donald R Baughman ,  Matthew Leopold ,  Stuart K Scott

IPC: G01J3/46 ,  B44D3/00 ,  G01J3/50 ,  G01N21/25 ,  G01N21/47 ,  G06T7/90 ,  G06V10/54 ,  G06V10/56 ,  H04N1/60

Abstract: Disclosed herein is a computer-implemented method, a respective device, and a non-transitory computer-readable medium. The method includes: obtaining color values, texture values and digital images of a target coating, retrieving from a database one or more preliminary matching formulas based on the color and/or texture values obtained for the target coating, determining sparkle points within the respective obtained images and within the respective images associated with the one or more preliminary matching formulas, creating subimages of each sparkle point from the respective images, providing the created subimages to a convolutional neural network, the convolutional neural network being trained to correlate a respective subimage of a respective sparkle point with a pigment and/or pigment class, and determining, based on an output of the neural network, at least one of the one or more preliminary matching formulas as the formula(s) best matching the target coating.

公开(公告)号：US12174065B2

公开(公告)日：2024-12-24

申请号：US17617178

申请日：2020-06-01

Applicant: Nix Sensor Ltd.

Inventor： Matthew Sheridan

IPC: G01J3/02 ,  G01J3/50

Abstract: An adaptor for use with a colour measuring device is provided where the colour measuring device has a cavity, a sensor positioned at a closed end of the cavity for measuring colour of a surface, and a rim surrounding an open end of the cavity. The adaptor includes a plate for contacting the surface and covering the rim of the colour measuring device, the plate having a portion for occluding the cavity that is transparent, referred to as the transparent portion, and a releasable coupling mechanism fixed to the plate for coupling the plate to the colour measuring device such that the transparent portion of the plate covers the sensor of the colour measuring device.

公开(公告)号：US12163839B2

公开(公告)日：2024-12-10

申请号：US17617722

申请日：2020-07-16

Applicant: AMS INTERNATIONAL AG

Inventor： James Archibald ,  Doug Nelson ,  Timothy Cogan

IPC: G01J3/50 ,  G01J1/42 ,  G09G3/3208

Abstract: The present disclosure describes a method and apparatus that can be used to determine various characteristics of ambient light when an ambient light sensor is located behind a display screen. The strategy of the disclosure relies, at least in part, on spectral decomposition of ambient light measurements into components (e.g., red, green, and blue components of an Organic Light Emitting Diode (“OLED”) display screen and ambient light). Following the spectral decomposition technique, statistical analysis are performed on the measurement data to remove the OLED light components from the measurement. This technique enables determinations such as ambient lux and correlated color temperature independent of the content displayed on the screen.