The sensitivity of hyper-spectral remote sensing to the directional reflectance of surfaces was studied using both laboratory and field measurements. Namely, the effects of the specular- and diffuse-reflectance properties of a set of eight samples, ranging from high to low in both total reflectance...
Detecting film of water or ice detection using laser reflectance, using angle of incidence chosen so that only diffuse light from water free surface areas contributed to signalThe angle of incidence relative to the surface of the objected being measured is specially chosen so that any diffuse ...