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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 26 — Sep. 10, 1999
  • pp: 5541–5547

Continuous-Scale-Invariant Pattern Recognition with Adaptive-Wavelet-Matched Filters

Yunlong Sheng and Danny Roberge  »View Author Affiliations


Applied Optics, Vol. 38, Issue 26, pp. 5541-5547 (1999)
http://dx.doi.org/10.1364/AO.38.005541


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Abstract

We designed and implemented a composite-wavelet-matched filter that is invariant to continuous-scale changes of the input and is useful for correlation-based pattern recognition of objects whose size is not known exactly. We optimize the adaptive wavelet to extract sparse image features and use the scale–space analysis to determine the wavelet scale for the scale invariance. Experimental results obtained by use of a programmable optical correlator with three liquid-crystal spatial light modulators are demonstrated.

© 1999 Optical Society of America

OCIS Codes
(070.4550) Fourier optics and signal processing : Correlators
(070.5010) Fourier optics and signal processing : Pattern recognition

Citation
Yunlong Sheng and Danny Roberge, "Continuous-Scale-Invariant Pattern Recognition with Adaptive-Wavelet-Matched Filters," Appl. Opt. 38, 5541-5547 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-26-5541


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References

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