A Comparison Of Real-Time Optical Correlators For Pattern Recognition

Stalker, K. Terry; Molley, Perry A.; Hansche, Bruce D.

doi:10.1117/12.961626

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Cited by 5 publications

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“…3. This approach provides the best of both technologies, the high throughput rates available using optics and the flexibility and programmability of digital electronics.…”

Section: Introductionmentioning

confidence: 99%

<title>Automatic target recognition using acousto-optic image correlator</title>

Molley

Kast

1991

SPIE Proceedings

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A hybrid electro-optic image processor has been developed for automatic target recognition using an acousto-optic correlator and digital electronics. The optical system performs the computationally intensive correlation operation on the large 2-D input scenes. The electronics provide the decision making capability and also performs part of the normalization needed for increasing the peak-to-sidelobe ratio in cluttered scenes. The system is able to analyze each correlation plane and apply a real-time template selection algorithm to accommodate scale or rotation changes of the target. A demonstration of the current system capabilities is presented using a terrain board with several different types of stationary and moving model vehicles.

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“…3. This approach provides the best of both technologies, the high throughput rates available using optics and the flexibility and programmability of digital electronics.…”

Section: Introductionmentioning

confidence: 99%