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Optics Letters

Optics Letters


  • Vol. 18, Iss. 4 — Feb. 15, 1993
  • pp: 299–301

Optical wavelet matched filters for shift-invariant pattern recognition

Yunlong Sheng, Danny Roberge, Harold Szu, and Taiwei Lu  »View Author Affiliations

Optics Letters, Vol. 18, Issue 4, pp. 299-301 (1993)

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We introduce optical wavelet matched filters that perform the wavelet transforms for edge enhancement and perform correlations between the wavelet coefficients for shift-invariant pattern recognition. These new bandpass matched filters show improved discrimination capability with respect to the conventional matched spatial filter and improved signal-to-noise ratio with respect to the phase-only matched filter.

© 1993 Optical Society of America

Original Manuscript: October 1, 1992
Published: February 15, 1993

Yunlong Sheng, Harold Szu, Taiwei Lu, and Danny Roberge, "Optical wavelet matched filters for shift-invariant pattern recognition," Opt. Lett. 18, 299-301 (1993)

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