Spectral reflectance estimation from transverse field detectors responses

Miguel A. Martinez1, Eva M. Valero1, Javier Hernandez-Andres1, Giacomo Langfelder2
1University of Granada (Spain), 2Politecnico di Milano (Italy)
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The main aim of this study is to investigate which would be the best algorithm for spectral estimation from Transverse Field Detectors (TFD) sensor responses. We perform a quality check of the estimation accuracy of five different algorithms, most of which are recent proposals. Some modifications are introduced as well in their implementation to simplify calculations or to increase the performance (see subsection Spectral estimation algorithms for details). The results obtained have allowed us to introduce relevant suggestions for enhancing the TFD sensor performance for their use in multispectral capture devices. This work paves the way for the practical development of a fully automatic multispectral device based on sensors with reconfigurable responsivities.