Electro-optical implementation of a three-dimensional (3-D) spatial correlation is proposed. A 3-D scene of objects, seen from the paraxial zone, is correlated with a reference object. As an example of application, we describe a 3-D joint transform correlator that is capable of recognizing targets in the 3-D space.
© 1998 Optical Society of America
Joseph Rosen, "Three-dimensional electro-optical correlation," J. Opt. Soc. Am. A 15, 430-436 (1998)