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The elimination of unexploded ordnance (UXO) on land presents a serious problem for both military and civilian personnel. Current technology provides many passive and active systems for the detection of subterranean unexploded ordnance, such as mines but UXO may also lay on the surface but be partially obscured (such as by foliage) or partially buried. Often large numbers of such UXO must be located over an area (such as a practice range) for purposes of safety and environmental cleanup.
The basic operation of removing or disposing of the UXO includes detection, assessment, and disposal. The task of detecting UXO is painstaking and dangerous, requiring a thorough canvassing of the area. There exists a need to detect and locate UXO safely and economically.
Navy scientists have developed an optical sensing device to detect UXO. The sensor picks up paint or surface finish characteristics on the UXO from beam reflectance. The device takes an initial image of the scene through a bandpass filter on a lower boundary wavelength. A second image is taken with a bandpass filter on an upper boundary wavelength. A third image of the scene is derived from a pixel by pixel ratio of the second image to the first image which reveals areas of the paint.
- Ideal for clearing bombing ranges
- Field tested
- US patent 7,447,335 available for express licensing