Wavelet matched filtering using a photorefractive crystal

Meiyuan Wen, Shizhuo Yin, Purwosumarto Purwardi, Francis T.S. Yu

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


A pattern identification technique using the wavelet matched filter (WMF) based on the photorefractive (PR) crystal has been proposed. The essential merit of using the WMF is that it offers better signal discrimination than the conventional matched filter (CMF). Since a large number of WMFs can be synthesized in a PR crystal, fingerprint identification was chosen as the application. Simulated and experimental results are provided.

Original languageEnglish (US)
Pages (from-to)325-330
Number of pages6
JournalOptics Communications
Issue number5-6
StatePublished - Jun 15 1993

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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