Abstract

The simplest TV-optical feedback experiment is performed by a TV-camera looking onto its own monitor. If we introduce some signal processing into the system as convolutions, image subtraction, non1inearites, etc., there are many applications: in a first approximation we assumed linear systems and we obtained systems for image restoration, iterative image processing and for the solution of partial differential equations [1]. However, the world is nonlinear, and if we introduce nonlinearity in our feedback loops completely new effects may occur. These effects occuring in many different physical systems are called "synergetic" by H. Haken [2].

© 1983 Optical Society of America