On-axis joint transform correlation based on the interferometric acquisition of the output plane

Ignasi Juan I. Labastida; Arturo Carnicer; Ignacio Prades Juvells; Santiago Vallmitjana

doi:10.1117/12.386859

24 May 2000 On-axis joint transform correlation based on the interferometric acquisition of the output plane

Ignasi Juan I. Labastida, Arturo Carnicer, Ignacio Prades Juvells, Santiago Vallmitjana

Proceedings Volume 4089, Optics in Computing 2000; (2000) https://doi.org/10.1117/12.386859
Event: 2000 International Topical Meeting on Optics in Computing (OC2000), 2000, Quebec City, Canada

Abstract

In this work we propose a method to obtain single centered correlations with an optical setup based on a joint transform correlator. This approach is a modification of a previous procedure that required displaying devices with a full 2(pi) phase modulation. The displaying requirements are less restrictive than before, allowing the use of many modulators and configurations. This new method is based on a binary power spectrum and it needs an interferometric process to obtain a single detection peak. To validate our new procedure, we propose an optical setup and we present the experimental results achieved.

Citation Download Citation

Ignasi Juan I. Labastida, Arturo Carnicer, Ignacio Prades Juvells, and Santiago Vallmitjana "On-axis joint transform correlation based on the interferometric acquisition of the output plane", Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); https://doi.org/10.1117/12.386859

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KEYWORDS

LCDs

Joint transforms

Interferometry

Binary data

Modulation

CCD cameras

Fourier transforms

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