Multispectral Imaging Development at ENST

We present the development at ENST of a multispectral imaging system. Various methods have been implemented and tested for the characterisation of spectral camera sensitivity, the optimal choice of filters and the reconstruction of the spectral reflectance of the imaged surfaces. We first used a 4k-linear array camera with a set of large band filters. We are now experimenting with a cooled 1k x 1k single chip camera coupled with a liquid crystal tunable filter.