Patent Document ID: 20110282613
Application ID: 12777344
Patent Flag: 0

Claim One:
1. A method for characterizing a model-based spectral reflectance sensing device, the method comprising: measuring, for each illuminator of a master reflectance sensing device, a respective wavelength; measuring, for each illuminator of a subject reflectance sensing device, a respective wavelength, said subject device having a same number of corresponding illuminators as said master device; and for each of a desired number of color training samples: receiving a reference spectral reflectance curve for this sample; and for each illuminator of said subject reflectance sensing device: using said reference spectral reflectance curve to obtain a first reflectance value corresponding to said wavelength measured for the current illuminator of said subject device, and to obtain a second reflectance value corresponding to said wavelength measured for the same corresponding illuminator of said master device; calculating a difference between said obtained first and second reflectance values; and storing said calculated difference for the current illuminator for this color training sample to a storage device.