Hybrid Optical/Electronic Pattern Recognition With Both Coherent And Noncoherent Operations

J. Lynn Smith; Douglas R. DeVoe

doi:10.1117/12.976590

22 August 1988 Hybrid Optical/Electronic Pattern Recognition With Both Coherent And Noncoherent Operations

J. Lynn Smith, Douglas R. DeVoe

Proceedings Volume 0938, Digital and Optical Shape Representation and Pattern Recognition; (1988) https://doi.org/10.1117/12.976590
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

A system approach to correlation-based rotation and scale invariant pattern recognition is described. Familiar operations such as the coherent optical Fourier transform and noncoherent correlation are included in a concept which is strongly influenced by the need for practical manufacturing techniques. There is merit in amplitude-only filtering for noncoherent correlation, and matched filtering diffraction effects are not severe. Emphasis for innovation is on electronic subsystems. A digital remapper and analog correlation field processor are discussed. Analysis leading to a prediction of several thousand frames per second is summarized.

Citation Download Citation

J. Lynn Smith and Douglas R. DeVoe "Hybrid Optical/Electronic Pattern Recognition With Both Coherent And Noncoherent Operations", Proc. SPIE 0938, Digital and Optical Shape Representation and Pattern Recognition, (22 August 1988); https://doi.org/10.1117/12.976590

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