title: Projection-invariant pattern recognition with a phase-only logarithmic-harmonic-derived filter.
abstract: A phase-only filter based on logarithmic harmonics for projection-invariant pattern recognition is presented. This logarithmic-harmonic-derived filter is directly calculated in the Fourier plane. With respect to normal logarithmic-harmonic filters it provides a smaller variation of the correlation intensity with the projection factor of the target. Computer and optical experiments are presented.
authors.forename: A
authors.initials: A
authors.lastname: Moya
authors.forename: D
authors.initials: D
authors.lastname: Mendlovic
authors.forename: J
authors.initials: J
authors.lastname: García
authors.forename: C
authors.initials: C
authors.lastname: Ferreira