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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 8 — Mar. 10, 1999
  • pp: 1325–1331

Demonstration of improved automatic target-recognition performance by moment analysis of correlation peaks

Paul C. Miller and Robert S. Caprari  »View Author Affiliations


Applied Optics, Vol. 38, Issue 8, pp. 1325-1331 (1999)
http://dx.doi.org/10.1364/AO.38.001325


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Abstract

We report the results of experimental tests of an optical-correlator-based automatic target recognition (ATR) system that uses the correlation-peak moment analysis technique of Caprari [Appl. Opt. 38, 1317 (1999)] to assist in discrimination between target and clutter peaks. The ATR system and its operation are briefly described with particular attention devoted to a practical scheme for enhancing the basic ATR system with correlation-peak moment detectors. We investigate the variation of detection and false-alarm rates of moment detectors with moment threshold values. For fixed moment thresholds, we present receiver operating characteristics of both basic and enhanced systems as the conventionally used correlation-peak energy threshold is varied. Results demonstrate that correlation-peak moment analysis materially improves ATR system target-detection performance.

© 1999 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(070.4550) Fourier optics and signal processing : Correlators
(070.5010) Fourier optics and signal processing : Pattern recognition
(070.6110) Fourier optics and signal processing : Spatial filtering

History
Original Manuscript: September 2, 1998
Revised Manuscript: November 9, 1998
Published: March 10, 1999

Citation
Paul C. Miller and Robert S. Caprari, "Demonstration of improved automatic target-recognition performance by moment analysis of correlation peaks," Appl. Opt. 38, 1325-1331 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-8-1325

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