Fourier Optical Signal Processors.
Abstract
Progress in Fourier optical processing techniques is reviewed with particular emphases on real-time pattern recognition, which recently has received increased interest as the result of new filter formulations that can be implemented with existing spatial light modulators. Architectures for coherent optical correlation, and the recently reported phase-only filters are reviewed. Smart filters which attack the inherent distortion sensitivity of correlation, are reviewed including those suitable for implementation with phase-only modulation. Correlation experiments implementing real-time variation of both input and reference patterns are reviewed. The potential for successful near- term application of these techniques is defined.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1990
- Accession Number
- ADA235553
Entities
People
- David L. Flannery
- Joseph L. Horner
Organizations
- Rome Laboratory