Thomas W Michaels

US Patent:

7499164, Mar 3, 2009

Filed:

Jun 12, 2006

Appl. No.:

11/450993

Inventors:

Brett Allen Pawlanta - Grand Rapids MI, US
James W. Vogh - Methuen MA, US
Thomas W. Michaels - Grand Rapids MI, US
Kraig D. Spear - Grand Rapids MI, US
Timothy L. Walker - West Olive MI, US

Assignee:

X-Rite, Inc. - Grand Rapids MI

International Classification:

G01J 3/46

US Classification:

356402, 356425, 356319

Abstract:

A method for adjusting a color measurement of a secondary color measurement instrument. The method includes generating a profile for the secondary color measurement instrument based on color measurements of a master color measurement instrument, and applying the profile to adjust the color measurement of the secondary color measurement instrument.

US Patent:

20220390282, Dec 8, 2022

Filed:

Oct 26, 2020

Appl. No.:

17/770564

Inventors:

- Grand Rapids MI, US
Thomas MICHAELS - Grand Rapids MI, US

International Classification:

G01J 3/46
G06N 5/04

Abstract:

A method of determining a color formula for a target color begins with generating a plurality of candidate color formulas to reproduce the target color. For each candidate formula, a predicted delta E indicating a difference from a predicted color for the candidate formula from the target color is determined. Also for each candidate formula, a confidence value in the predicted delta E is generated by summing weighted figures of merit for each colorant in the candidate formula. The weighting of the figures of merit represents each colorant's proportion in the candidate formula. A formula is then selected based on the predicted delta E and confidence value. The target color may be defined in terms of a multi-dimensional color space.