Application of serial- and parallel-projection methods to correlation-filter design

Tuvia Kotzer, Joseph Rosen, Joseph Shamir

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


We describe generalized projection procedures for the design of arbitrary filter functions for correlators. More specifically, serial and parallel implementations of projection-based algorithms are employed. The novelty of this procedure lies in its generality and its ability to handle wide varieties of constraints by the same procedure. The procedure is demonstrated by the design of filters for the 4-f linear correlator, the phase-extraction correlator, and variants thereof. The filters are subject to a variety of constraints, including rotation-invariant pattern recognition and class discrimination. Examples are given to show the versatility, flexibility, and applicability of the design process to a variety of pattern-recognition tasks. Satisfactory results are also obtained because of the combination with the special nonlinear correlators proposed for pattern recognition.

Original languageEnglish
Pages (from-to)3883-3895
Number of pages13
JournalApplied Optics
Issue number20
StatePublished - 10 Jul 1995
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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