Monitor color sensing using low-cost filter array spectrum sensor

We aim to use 12 channel filter array spectrum sensor for monitor´s CIE tristimulus color sensing. Although low-cost RGB color sensors are available for monitor´s color sensing, however their spectral response functions are usually different from the CIE XYZ color matching functions, and hence cannot deliver an accurate color sensing. Alternatively, our proposed filter array spectrum sensor using plasmonic filter technology can supply a low-cost and highly accurate solution. In this work, partial least squares (PLS) and nonlinear iterative partial least squares (NIPLS) are adopted to associate 12 sensor outputs to the CIE XYZ values. Preliminary experimental results show Δxy = 0.0023 has been achieved by this proposed approach.