Continuity-Aware Estimation of Spectral Reflectance from Tristimulus Values

Abstract

We propose a method for estimating spectral reflectance from tristimulus values observed. We use the fact that the real spectral reflectance is continuous. We formulate the estimation problem as a minimization of spectral reflectance difference between neighboring wavelengths, and show the analytic solution. Experimental results show that the proposed method improves the estimation accuracy compared with the previous method.