Patent ID: 9200963
Filing Date: 2015-12-01
Classification: G01J

Abstract:
1. A method for aligning measurements taken by a fleet comprising a plurality of color measurement instruments with measurements taken by a master color measurement instrument that is outside of the fleet, the method comprising: receiving a first set of spectral data from the plurality of color measurement instruments; receiving a second set of spectral data from the master color measurement instrument; generating a plurality of initial profiles for the plurality of color measurement instruments, wherein the generating the plurality of initial profiles comprises, for each given instrument in the plurality of color measurement instruments: mathematically correcting the first set of spectral data using the plurality of initial profiles, wherein the correcting results in a third set of spectral data; generating a plurality of new profiles for the plurality of color measurement instruments, using the third set of spectral data, wherein the generating the plurality of new profiles comprises: obtaining a preliminary reflectance measurement of a sample taken by one of the plurality of color measurement instruments; and generating a corrected reflectance measurement using the preliminary reflectance measurement and the second correction corresponding to the one of the plurality of color measurement instruments.