公开(公告)号：US10928251B2

公开(公告)日：2021-02-23

申请号：US16673405

申请日：2019-11-04

Applicant: DATACOLOR INC.

Inventor： Taeyoung Park ,  Hong Wei ,  Zhiling Xu ,  Venkata R. Thumu

IPC: G01J3/02 ,  G01J3/52 ,  G01J3/46

Abstract: Embodiments of the present invention are directed towards systems, methods and computer program products for correcting inter-instrumentation variation among color measurement devices. In one particular implementation, a method for correcting inter-instrument variation among color measurement devices includes obtaining a set of color measurements of an item under analysis. The described approach also includes accessing a conversion model, wherein the conversion module has been generated using one or more ANN back propagated over a collection of data points, where the data points correspond to measurements of a color standard using devices from a control device batch and a test device batch. Using the conversion module, a processor is configured to transform the set of color measurements into a calibrated color measurement set. The calibrated color measurement set is then output to at least one display, memory or remote computing device.

公开(公告)号：US20220065781A1

公开(公告)日：2022-03-03

申请号：US17008356

申请日：2020-08-31

Applicant: DATACOLOR INC.

Inventor： Zhiling Xu ,  Bill Binder ,  Venkata R. Thumu

IPC: G01N21/57

Abstract: As described herein, a method has been developed to estimate the gloss of a black or dark sample using a color measurement system. In such a system, when measuring a higher gloss sample, more illumination light reflected from the sample surface will be directed away from the receiving sensor, and thus less signal will be detected. Using a derived sensor-signal to surface-gloss relationship, the surface gloss of a sample can be calculated by applying the measurements of the sample to the signal to gloss relationship to obtain a more accurate gloss measurement of a sample under analysis.

公开(公告)号：US10564036B2

公开(公告)日：2020-02-18

申请号：US15895519

申请日：2018-02-13

Applicant: DATACOLOR INC.

Inventor： Taeyoung Park ,  Hong Wei ,  Venkata R. Thumu ,  Kathleen A. Edwards

IPC: G01J3/28 ,  G06T7/90 ,  G06T7/00 ,  G01J3/50 ,  G01J3/02 ,  G06T7/11

Abstract: Systems, methods and computer program products for segmenting colors in a sample image comprised of pixels using a processor configured by code executing for selecting at least one color value present within the sample image and for each color selected from the sample image comparing the color values of each pixel of the sample image to the selected color value and averaging the color values of each pixels of the sample image having a color value difference below a pre-determined threshold. The method also includes outputting the average color value as a color value data object; and associating each averaged color value with sample image.

公开(公告)号：US20180245979A1

公开(公告)日：2018-08-30

申请号：US15895519

申请日：2018-02-13

Applicant: DATACOLOR INC. USA

Inventor： Taeyoung Park ,  Hong Wei ,  Venkata R. Thumu ,  Kathleen A. Edwards

IPC: G01J3/28 ,  G06T7/90 ,  G06T7/00

CPC classification number: G01J3/2823 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/50 ,  G01J2003/2826 ,  G06T7/0002 ,  G06T7/11 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/20101 ,  G06T2207/30124

Abstract: Systems, methods and computer program products for segmenting colors in a sample image comprised of pixels using a processor configured by code executing for selecting at least one color value present within the sample image and for each color selected from the sample image comparing the color values of each pixel of the sample image to the selected color value and averaging the color values of each pixels of the sample image having a color value difference below a pre-determined threshold. The method also includes outputting the average color value as a color value data object; and associating each averaged color value with sample image.

公开(公告)号：US20240085323A1

公开(公告)日：2024-03-14

申请号：US17931895

申请日：2022-09-13

Applicant: Datacolor, Inc.

Inventor： Zhiling Xu ,  Nilesh B. Dhote ,  David Williams ,  Seaver Li ,  William Binder ,  Venkata R. Thumu

IPC: G01N21/57 ,  G01N21/25

CPC classification number: G01N21/57 ,  G01N21/251 ,  G01N2201/062 ,  G01N2201/127

Abstract: In one example, a method includes controlling a gloss channel of a color measurement apparatus to measure a surface gloss of a color sample to generate a gloss value for the color sample, controlling a color channel of the color measurement apparatus to measure a reflectance spectrum of the color sample to generate a first plurality of reflectance values for the color sample under a first measurement geometry, and converting the first plurality of reflectance values to a second plurality of reflectance values representing the reflectance spectrum of the color sample under a second measurement geometry, different from the first measurement geometry, wherein the converting utilizes an adjustment that is a function of the gloss value.