Detection of surface laid and buried mines with IR and CCD cameras, an evaluation based on measurements

We analyzed a time series of high resolution 8 - 13.4 μm scanner images of a sandbox with buried (3 - 10 cm depth) and unburied, metal and plastic AP and AT mines, surrogates and other targets. With a high resolution DUDA scanner operating in 8 - 13.4 μm all the surface laid targets were visible during the whole diurnal cycle. The buried targets were only visible during sunrise and sunset. The emissivity of the targets and sand could not be derived from the measured apparent temperatures and contact temperatures