Deception Pattern for Camouflage.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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An object intended for concealment or a facsimile thereof is used to generate the pattern by creating shadows on a flat surface at several elevation angles, with the resulting set of shapes then rotated in azimuth, in order to produce an abundance of quasi-object shapes within the pattern. The shapes are created in such a way as to be viewing-angle independent, thus producing a background upon which the object is difficult to see from any viewing angle. Selected azimuth andor elevation angles can also be employed, resulting in patterns that are viewing-angle dependent. Author