Multiple-invariant space-variant optical processors
Open Access
- 15 February 1978
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 17 (4) , 655-659
- https://doi.org/10.1364/ao.17.000655
Abstract
Multiple invariant optical correlators are considered. By multiple invariance, we mean invariance to more than one distortion parameter per axis of the processor. Space variant optical processors using coordinate transformations and a new phase detection scheme are used to realize such correlators. A theoretical analysis and experimental verification are included.Keywords
This publication has 8 references indexed in Scilit:
- Deformation invariant optical processors using coordinate transformationsApplied Optics, 1977
- Operations achievable with coherent optical information processing systemsProceedings of the IEEE, 1977
- New optical transforms for pattern recognitionProceedings of the IEEE, 1977
- Position, rotation, and scale invariant optical correlationApplied Optics, 1976
- Scale invariant optical correlation using Mellin transformsOptics Communications, 1976
- An Optical/Digital Processor: Hardware and ApplicationsIEEE Transactions on Computers, 1975
- Storage Capacity of an Optically Formed Spatial Filter for Character RecognitionApplied Optics, 1967
- Practical Considerations for the Use of Spatial Carrier-Frequency FiltersApplied Optics, 1966