A method and apparatus for making three-dimensional photographs involve projecting from a fixed position a first one of a series of images in a predefined projected image area on a structure, moving the structure and projecting from the fixed position a second one of the series of images on the structure...http://www.google.ca/patents/US4596458?utm_source=gb-gplus-sharePatent US4596458 - Method and apparatus for making a free vision three-dimensional image employing portable equipment and providing increased speed and with enhanced versatility