Method and system to personalize sensor characterizing reference database in multiple LED spectrophotometers

A method for building a representative model of operation of a second sensor in a multiple LED spectrophotometer system, comprising:

• building a first model of operation for a reference sensor by sensing a first plurality of reflectance measurements from training samples generated from a plurality of different LED emissions,
• building a second model of operation for the second sensor by sensing a second plurality of reflectance measurements, and wherein the second plurality is reduced in number from the first plurality;
• adjusting the second model from the first model wherein the adjusted second model comprises an optimal second sensor model;
• and,
• adjusting the first model with the optimal second sensor model for building a personalized second sensor model.

A system for defining a reference database characterizing a selected sensor operation in a multiple LED spectrophotometric assembly, comprising:

• a first set of reference sensor measurements taken from a reference sensor and characterizing an operation of the reference sensor;
• a spectral reconstruction reference formulation derived from the first set of measurements and defining the operation of the reference sensor;
• a second set of selected sensor measurements taken from the selected sensor and characterizing an operation of the selected sensor, the selected sensor measurements being fewer in number than the reference sensor measurements;
• a spectral reconstruction selected sensor formulation derived from the second set of measurements and defining the operation of the selected sensor;
• an adjusted spectral reconstruction selected sensor formulation comprising an adjustment based on measurement differences between the second set and corresponding measurements of the first set;
• an adjusted spectral reconstruction reference formulation comprising an adjustment based on the adjusted spectral reconstruction selected sensor reference formulation;
• and
• wherein the reference database comprises a database formulation characterizing the selected sensor operation computed from the adjusted spectral reconstruction reference formulation.