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Applied Optics

Applied Optics


  • Vol. 29, Iss. 20 — Jul. 10, 1990
  • pp: 2997–3006

Performance measures for correlation filters

B. V. K. Vijaya Kumar and L. Hassebrook  »View Author Affiliations

Applied Optics, Vol. 29, Issue 20, pp. 2997-3006 (1990)

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Several performance criteria are described to enable a fair comparison among the various correlation filter designs: signal-to-noise ratio, peak sharpness, peak location, light efficiency, discriminability, and distortion invariance. The trade-offs resulting between some of these criteria are illustrated with the help of a new family of filters called fractional power filters (FPFs). The classical matched filter, phase-only filter (POF), and inverse filter are special cases of FPFs. Using examples, we show that the POF appears to provide a good compromise between noise tolerance and peak sharpness.

© 1990 Optical Society of America

Original Manuscript: November 9, 1989
Published: July 10, 1990

B. V. K. Vijaya Kumar and L. Hassebrook, "Performance measures for correlation filters," Appl. Opt. 29, 2997-3006 (1990)

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