Aiming at the process of the registration of hyperspectral images and high spatial resolution images,it is difficult to choose the high-precision registration band because of the large difference between the bands of hyperspectral images.An algorithm for selecting high precision matching band of hyperspectral image based on Cram′er-Rao lower limit(CRLB)theory is proposed.Several bands with large amount of information and a small correlation in the hyperspectral image are selected by the band selection metho...