Holography Machine HORN-1 for Computer-Aided Retrieval of Virtual Three-Dimensional Image

We propose a method to efficiently retrieve the original 3-D (three-dimensional) objects by computers as a virtual image from a hologram. The present method is based on the correlation between the hologram of a point source and the hologram of objects. We have succeeded in the retrieval of objects with the wavelength resolution in any direction. This resolution is not possible with conventional holography. HORN-1 (HOlographic ReconstructioN) is a machine specially prepared for this purpose and enables us to accomplish this work within a short period of time. The machine has achieved a speed of 500 MFLOPS with one circuit.