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Abstract:

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.

Registro:

Documento: Artículo
Título:A distortion-tolerant photorefractive joint transform correlator
Autor:La Mela, C.; Iemmi, C.C.
Filiación:Lab. de Procesado de Imágenes, Departamento de Física, Pabellon I, (1428), Buenos Aires, Argentina
Palabras clave: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
Año:2004
Volumen:6
Número:9
Página de inicio:894
Página de fin:899
DOI: http://dx.doi.org/10.1088/1464-4258/6/9/012
Título revista:Journal of Optics A: Pure and Applied Optics
Título revista abreviado:J Opt A Pure Appl Opt
ISSN:14644258
CODEN:JOAOF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14644258_v6_n9_p894_LaMela

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Citas:

---------- APA ----------
La Mela, C. & Iemmi, C.C. (2004) . A distortion-tolerant photorefractive joint transform correlator. Journal of Optics A: Pure and Applied Optics, 6(9), 894-899.
http://dx.doi.org/10.1088/1464-4258/6/9/012
---------- CHICAGO ----------
La Mela, C., Iemmi, C.C. "A distortion-tolerant photorefractive joint transform correlator" . Journal of Optics A: Pure and Applied Optics 6, no. 9 (2004) : 894-899.
http://dx.doi.org/10.1088/1464-4258/6/9/012
---------- MLA ----------
La Mela, C., Iemmi, C.C. "A distortion-tolerant photorefractive joint transform correlator" . Journal of Optics A: Pure and Applied Optics, vol. 6, no. 9, 2004, pp. 894-899.
http://dx.doi.org/10.1088/1464-4258/6/9/012
---------- VANCOUVER ----------
La Mela, C., Iemmi, C.C. A distortion-tolerant photorefractive joint transform correlator. J Opt A Pure Appl Opt. 2004;6(9):894-899.
http://dx.doi.org/10.1088/1464-4258/6/9/012