A new and better circular-harmonic filter

Oscar Gualdron; Henri H. Arsenault

doi:10.1364/OAM.1993.FF.5

OSA Annual Meeting
Technical Digest Series (Optica Publishing Group, 1993),
paper FF.5
•https://doi.org/10.1364/OAM.1993.FF.5

A new and better circular-harmonic filter

Oscar Gualdron and Henri H. Arsenault

OSA Annual Meeting 1993

Toronto Canada
3–8 October 1993
ISBN:

From the session
Pattern Recognition: 3 (FF)

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O. Gualdron and H. H. Arsenault, "A new and better circular-harmonic filter," in OSA Annual Meeting, Technical Digest Series (Optica Publishing Group, 1993), paper FF.5.

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Abstract

Phase-only filters generally have better discrimination ability than normal filters. Rotation-invariant Circular harmonic (CH) filters that use only one component of the target generally don’t have sufficient discrimination to classify complex objects, unless they are realized as phase-only filters.

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