Real-Time Nonlinear Optical Information Processing.
Abstract
Existing methods for nonlinear optical processing involve an intermediate photographic step which prevents real-time operation. Although optical information processors have a large space-bandwidth product, the problem of real-time input has been a major limitation in taking advantage of this processing ability. In this research, the realization of nonlinear optical processing in real time is investigated. Several techniques for performing such operations aree presented. One approach realizes the halftone method of nonlinear optical processing in real time by replacing the conventional photographic recording medium with a real-time image transducer. In the second approach halftoning is eliminated and the real-time device is used directly. In this case the nonlinearity is obtained by the inherent nonlinear characteristic of the real-time devicce. A third method uses the ability of certain real-time devices to perform an intensity-to-spatial frequency conversion.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1979
- Accession Number
- ADA071541
Entities
People
- Ahmad Armand
Organizations
- University of Southern California