A system and method for three-dimensional imaging utilize a lens to perform a two-dimensional Fourier transform of an interference pattern while focusing the pattern on a two-dimensional detector array which is positioned in the image plane of the lens. This allows immediate ...http://www.google.com.au/patents/US5777742?utm_source=gb-gplus-sharePatent US5777742 - System and method for holographic imaging with discernible image of an object 
