A distortion-tolerant photorefractive joint transform correlator

A distortion-tolerant recognition process has been successfully implemented in an optical joint transform correlator operating with a liquid crystal television display in the input plane and a photorefractive crystal in the Fourier plane. We have generated the reference by retaining the phase inform...

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Detalles Bibliográficos
Autores principales: La Mela, C., Iemmi, C.C.
Formato: JOUR
Materias:
Optical correlators
Pattern recognition
Synthetic discrimination functions
Algorithms
Computer simulation
Fourier transforms
Functions
Liquid crystals
Optical correlation
Television
Joint transform correlators (JTC)
Minimum average correlation energy (MACE)
Synthetic discrimination functions (SDF)
Photoreactivity
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14644258_v6_n9_p894_LaMela
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_14644258_v6_n9_p894_LaMela
record_format dspace
spelling todo:paper_14644258_v6_n9_p894_LaMela2023-10-03T16:17:13Z A distortion-tolerant photorefractive joint transform correlator La Mela, C. Iemmi, C.C. Optical correlators Pattern recognition Synthetic discrimination functions Algorithms Computer simulation Fourier transforms Functions Liquid crystals Optical correlation Pattern recognition Television Joint transform correlators (JTC) Minimum average correlation energy (MACE) Optical correlators Synthetic discrimination functions (SDF) Photoreactivity A distortion-tolerant recognition process has been successfully implemented in an optical joint transform correlator operating with a liquid crystal television display in the input plane and a photorefractive crystal in the Fourier plane. We have generated the reference by retaining the phase information of the Fourier transform of a constrained phase-only minimum Euclidean distance synthetic discriminant function filter. This gave rise to a process that successfully detects the target also for distortions not included in the training set. Experimental and theoretical results are shown. Fil:La Mela, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Iemmi, C.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14644258_v6_n9_p894_LaMela
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Optical correlators
Pattern recognition
Synthetic discrimination functions
Algorithms
Computer simulation
Fourier transforms
Functions
Liquid crystals
Optical correlation
Pattern recognition
Television
Joint transform correlators (JTC)
Minimum average correlation energy (MACE)
Optical correlators
Synthetic discrimination functions (SDF)
Photoreactivity
spellingShingle Optical correlators
Pattern recognition
Synthetic discrimination functions
Algorithms
Computer simulation
Fourier transforms
Functions
Liquid crystals
Optical correlation
Pattern recognition
Television
Joint transform correlators (JTC)
Minimum average correlation energy (MACE)
Optical correlators
Synthetic discrimination functions (SDF)
Photoreactivity
La Mela, C.
Iemmi, C.C.
A distortion-tolerant photorefractive joint transform correlator
topic_facet Optical correlators
Pattern recognition
Synthetic discrimination functions
Algorithms
Computer simulation
Fourier transforms
Functions
Liquid crystals
Optical correlation
Pattern recognition
Television
Joint transform correlators (JTC)
Minimum average correlation energy (MACE)
Optical correlators
Synthetic discrimination functions (SDF)
Photoreactivity
description A distortion-tolerant recognition process has been successfully implemented in an optical joint transform correlator operating with a liquid crystal television display in the input plane and a photorefractive crystal in the Fourier plane. We have generated the reference by retaining the phase information of the Fourier transform of a constrained phase-only minimum Euclidean distance synthetic discriminant function filter. This gave rise to a process that successfully detects the target also for distortions not included in the training set. Experimental and theoretical results are shown.
format JOUR
author La Mela, C.
Iemmi, C.C.
author_facet La Mela, C.
Iemmi, C.C.
author_sort La Mela, C.
title A distortion-tolerant photorefractive joint transform correlator
title_short A distortion-tolerant photorefractive joint transform correlator
title_full A distortion-tolerant photorefractive joint transform correlator
title_fullStr A distortion-tolerant photorefractive joint transform correlator
title_full_unstemmed A distortion-tolerant photorefractive joint transform correlator
title_sort distortion-tolerant photorefractive joint transform correlator
url http://hdl.handle.net/20.500.12110/paper_14644258_v6_n9_p894_LaMela
work_keys_str_mv AT lamelac adistortiontolerantphotorefractivejointtransformcorrelator
AT iemmicc adistortiontolerantphotorefractivejointtransformcorrelator
AT lamelac distortiontolerantphotorefractivejointtransformcorrelator
AT iemmicc distortiontolerantphotorefractivejointtransformcorrelator
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