Phase-only photorefractive joint transform correlator

In this work we propose a method to improve the discrimination capability of joint transform correlators. The technique is mainly developed to apply in photorefractive joint transform correlators that use a liquid crystal spatial light modulator to display the input plane and a BSO crystal to record...

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Detalles Bibliográficos
Autores principales: Iemmi, C., La Mela, C.
Formato: JOUR
Materias:
Image processing
Pattern recognition
Photorefractive correlators
Computer simulation
Image analysis
Light modulators
Liquid crystals
Photorefractive materials
Correlators
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00304018_v209_n4-6_p255_Iemmi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00304018_v209_n4-6_p255_Iemmi
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spelling todo:paper_00304018_v209_n4-6_p255_Iemmi2023-10-03T14:40:08Z Phase-only photorefractive joint transform correlator Iemmi, C. La Mela, C. Image processing Pattern recognition Photorefractive correlators Computer simulation Image analysis Light modulators Liquid crystals Pattern recognition Photorefractive materials Photorefractive correlators Correlators In this work we propose a method to improve the discrimination capability of joint transform correlators. The technique is mainly developed to apply in photorefractive joint transform correlators that use a liquid crystal spatial light modulator to display the input plane and a BSO crystal to record dynamically the joint transform plane. The discrimination capability of the system is increased by using a phase-encoded input in combination with the phase-only information of the reference. To this end we use the liquid crystal modulator working in a pure phase mode. We perform numerical simulations to show that the proposed method also improves the discrimination capability of correlators with conventional linear detection of the joint power spectrum. Experimental results obtained with our photorefractive correlator are shown. © 2002 Elsevier Science B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00304018_v209_n4-6_p255_Iemmi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Image processing
Pattern recognition
Photorefractive correlators
Computer simulation
Image analysis
Light modulators
Liquid crystals
Pattern recognition
Photorefractive materials
Photorefractive correlators
Correlators
spellingShingle Image processing
Pattern recognition
Photorefractive correlators
Computer simulation
Image analysis
Light modulators
Liquid crystals
Pattern recognition
Photorefractive materials
Photorefractive correlators
Correlators
Iemmi, C.
La Mela, C.
Phase-only photorefractive joint transform correlator
topic_facet Image processing
Pattern recognition
Photorefractive correlators
Computer simulation
Image analysis
Light modulators
Liquid crystals
Pattern recognition
Photorefractive materials
Photorefractive correlators
Correlators
description In this work we propose a method to improve the discrimination capability of joint transform correlators. The technique is mainly developed to apply in photorefractive joint transform correlators that use a liquid crystal spatial light modulator to display the input plane and a BSO crystal to record dynamically the joint transform plane. The discrimination capability of the system is increased by using a phase-encoded input in combination with the phase-only information of the reference. To this end we use the liquid crystal modulator working in a pure phase mode. We perform numerical simulations to show that the proposed method also improves the discrimination capability of correlators with conventional linear detection of the joint power spectrum. Experimental results obtained with our photorefractive correlator are shown. © 2002 Elsevier Science B.V. All rights reserved.
format JOUR
author Iemmi, C.
La Mela, C.
author_facet Iemmi, C.
La Mela, C.
author_sort Iemmi, C.
title Phase-only photorefractive joint transform correlator
title_short Phase-only photorefractive joint transform correlator
title_full Phase-only photorefractive joint transform correlator
title_fullStr Phase-only photorefractive joint transform correlator
title_full_unstemmed Phase-only photorefractive joint transform correlator
title_sort phase-only photorefractive joint transform correlator
url http://hdl.handle.net/20.500.12110/paper_00304018_v209_n4-6_p255_Iemmi
work_keys_str_mv AT iemmic phaseonlyphotorefractivejointtransformcorrelator
AT lamelac phaseonlyphotorefractivejointtransformcorrelator
_version_ 1782026298454966272

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