Method and system for estimating an input spectrum from sensor data

A method for estimating an input spectrum from sensor data acquired by means of an optical sensor assembly, said optical sensor assembly comprising an aperture, a Fabry-Perot interferometer, and an optical sensor element, the method comprising:

• obtaining first calibration data representative of a spectral response function of said optical sensor assembly for a first setting of said aperture;
• computing second calibration data from said first calibration data, said second calibration data being representative of a spectral response function of said optical sensor assembly for a second setting of said aperture, wherein said second setting corresponds to a setting applied during said acquiring of said sensor data;
• and
• estimating said input spectrum as a function of said second calibration data and said sensor data.

A system for estimating an input spectrum from sensor data acquired by means of an optical sensor assembly having an aperture, the system comprising:

• interfacing means configured for acquiring said sensor data, and first calibration data representative of a spectral response function of said optical sensor assembly for a first setting of said aperture;
• and
• processing means configured for computing second calibration data from said first calibration data, said second calibration data being representative of a spectral response function of said optical sensor assembly for a second setting of said aperture, wherein said second setting corresponds to a setting applied during said acquiring of said sensor data;
• and
• for estimating said input spectrum as a function of said second calibration data and said sensor data.

A system for estimating an input spectrum from sensor data acquired by an optical sensor assembly having an aperture, comprising:

• interfacing hardware configured for acquiring said sensor data, and first calibration data representative of a spectral response function of said optical sensor assembly for a first setting of said aperture;
• and
• processing hardware configured for computing second calibration data from said first calibration data, said second calibration data being representative of a spectral response function of said optical sensor assembly for a second setting of said aperture, wherein said second setting corresponds to a setting applied during said acquiring of said sensor data;
• and for estimating said input spectrum as a function of said second calibration data and said sensor data.