Uncertainty analysis of hyperspectral color measurement system

Evaluating the uncertainty of a hyperspectral color measurement system is the best method to assess the accuracy of its chromaticity measurement results. Based on the analysis of uncertainty evaluation methods for measurements, combined with the characteristics of color measurement, the uncertainty of measurement results is evaluated. Firstly, the methods for calculating luminance and chromaticity uncertainties are analyzed according to the "Guide to the Expression of Uncertainty in Measurement" and CIE chromaticity calculation formulas. Then, by analyzing the influence of various factors during the measurement process on chromaticity measurement, the uncertainty of spectral reflectance is obtained. Subsequently, based on the uncertainty of spectral reflectance, the uncertainties of luminance and chromaticity are calculated. Finally, the cross-validation results with the standard reference instrument CM-700d demonstrate the feasibility of the uncertainty evaluation method for color measurement results, laying a theoretical foundation for further research.