Fourier optics vision in a control system environment Available to Purchase

Optical correlators offer a method of synthetic vision that is characterized by speed, light weight, reliability, flexibility, and simplicity. In a vision system, some drawbacks of optical correlators are the limited class of operations that can be done on an image and the perhaps unnecessarily sharp response of a prominent class of filter (the phase-only filter, or POF) to position, scale, etc., of the viewed object. We sketch some considerations for including an optical correlator in a control system, including outlining a method of conforming the sharp phase-only filter for use in a control system.