Abstract

The idea of a phase-only matched filter [ J. L. Horner and P. D. Gianino, Appl. Opt. 23, 812– 816 ( 1984)] is incorporated in the scheme of circular harmonic component matched filtering [ Y. N. Hsu and H. H. Arsenault, Appl. Opt. 21, 4016– 4019 ( 1982)]. Computer simulation showed that the phase-only circular harmonic matched filter possesses the rotational invariant property for 2-D recognition. Furthermore, it does a better job in recognizing closely placed targets compared with traditional circular harmonic filters. The simulation also demonstrated that a pure phase circular harmonic filter is less liable to give rise to false alarms in recognition because the sidelobe produced by it is much less pronounced and much less extensive than that produced by a traditional circular harmonic filter.

© 1989 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Circular-harmonic minimum average correlation energy filter for color pattern recognition

Javier Garcia, Juan Campos, and Carlos Ferreira
Appl. Opt. 33(11) 2180-2187 (1994)

Experimental demonstration of phase-only circular harmonic filtering using computer generated filters

Hon Fai Yau, Chi-Ching Chang, Cheng-Min Lee, and Ming-Wen Chang
Appl. Opt. 29(23) 3387-3391 (1990)

Shift-and-scale-invariant pattern recognition using an elliptic coordinate-transformed phase-only filter

Javier García, Tomasz Szoplik, and Carlos Ferreira
Appl. Opt. 31(23) 4823-4828 (1992)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription