Multi-channel Spectral Reconstruction of Monochrome Camera Using Theory of Basis Functions

A set of system of multi-channel spectral reconstruction was proposed using basis functions.In order to improve the spectral reconstruction accuracy,the digital response of the system has been processed by linear correction functions.In the experimental results the minimum RMSE of the reconstruction spectrum can reach 0.006 87,the minimumcolor difference can reach 0.02,the average color difference is only 2.25.