Arrangement for applying coded illuminated patterns to an object

摘要

A plurality of projectors are positioned in spaced relationship about an object with a surface to be geometrically analyzed. The projectors have cooperating masks which project onto the object illuminated patterns that subdivide the object into predetermined sections. Each mask has a predetermined pattern of sections, and is applied in sequence. The masks are cooperatively illuminated in the projectors, with a separate pattern prevailing on the object each time that a separate mask is illuminated. The combinations of the patterns on the masks define closely-spaced sections subdividing the object. The patterns are coded so that each section is uniquely defined in coded form. Cameras having the entire object within their field of view, photograph the object each time a separate mask is illuminated. The patterns or sections are generated by parallel lines projected through a mask onto the object.