Patent ID: 9612160
Date: 2017-04-04
CPC Classifications: G01J

Claim:
1. A method implemented by computing hardware, comprising the steps of: receiving a plurality of spectral radiance measurements at a plurality of wavelengths from a surface of an object; receiving a surface reflectance measurement from the surface of the object; correcting the received plurality of spectral radiance measurements for surface reflectance changes by multiplying the plurality of spectral radiance measurements with a ratio of the surface reflectance measurement over a low-temperature material reflectance spectrum of the object to produce corrected spectral radiance measurements; fitting the plurality of the corrected spectral radiance measurements to a scaled version of a black body curve, with the computing hardware, wherein the fitting step comprises determining a temperature of the scaled version of the black body curve; and outputting the temperature for the scaled version of the black body curve that fits the plurality of the corrected spectral radiance measurements.