Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Technique for reducing the redundant and self-correlation terms in joint transform correlators

Not Accessible

Your library or personal account may give you access

Abstract

We describe a joint transform correlator in which the reference signal and the input scene are placed in different input planes along the optical axis. We show that this system focuses the off-axis cross-correlation functions and the on-axis autocorrelation functions in different output planes. In a conventional joint transform correlator these terms are produced in the same output plane. The effect of placing the input scene and the reference signal in different input planes is analyzed mathematically. Computer simulations and experimental results are presented to illustrate the performance of this correlator. We show that for the nonlinear joint transform correlator the higher-order correlation terms are produced in different output planes.

© 1993 Optical Society of America

Full Article  |  PDF Article
More Like This
Multiple-object detection with a chirp-encoded joint transform correlator

Qing Tang and Bahram Javidi
Appl. Opt. 32(26) 5079-5088 (1993)

Image classification with a chirp-encoded joint transform correlator

Bahram Javidi, Qing Tang, Guanshen Zhang, and Farokh Parchekani
Appl. Opt. 33(26) 6219-6227 (1994)

Fringe-adjusted joint transform correlation

Mohammad S. Alam and Mohammad A. Karim
Appl. Opt. 32(23) 4344-4350 (1993)

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 Optica member, or as an authorized user of your institution.

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

Figures (7)

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

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

Equations (18)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved