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Applied Optics

Applied Optics


  • Vol. 29, Iss. 35 — Dec. 10, 1990
  • pp: 5235–5241

Mapping considerations for optimal binary correlation filters

John D. Downie and Max B. Reid  »View Author Affiliations

Applied Optics, Vol. 29, Issue 35, pp. 5235-5241 (1990)

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The optimality of correlation filters is an important issue in applications of pattern recognition. We consider here both binary phase-only filters (BPOFs) and amplitude encoded binary phase-only filters (AE BPOFs) and study the results of optimizing the filters for a real world object (the Space Shuttle). We find that while only small improvements result from optimizing a BPOF, optimization of the AE BPOF is quite important in obtaining a useful correlation function. In the case of an AE BPOF, both signal-to-noise and peak-to-sidelobe measures must be studied. Computer simulation and experimental correlation results are presented.

© 1990 Optical Society of America

Original Manuscript: November 3, 1989
Published: December 10, 1990

John D. Downie and Max B. Reid, "Mapping considerations for optimal binary correlation filters," Appl. Opt. 29, 5235-5241 (1990)

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