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Abstract:

We propose here a method to optically perform multiple feature extraction by using wavelet transforms. The method is based on obtaining the optical correlation by means of a Vander Lugt architecture, where the scene and the filter are displayed on spatial light modulators (SLMs). Multiple phase filters containing the information about the features that we are interested in extracting are designed and then displayed on an SLM working in phase mostly mode. We have designed filters to simultaneously detect edges and corners or different characteristic frequencies contained in the input scene. Simulated and experimental results are shown.

Registro:

Documento: Artículo
Título:Multiple feature extraction by using simultaneous wavelet transforms
Autor:Mazzaferri, J.; Ledesma, S.; Iemmi, C.
Filiación:Lab. de Procesado de Imágenes, Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Multi-channel processor; Optical correlation; Wavelet transform; Computer simulation; Light modulation; Optical correlation; Optical filters; Multi-channel processors; Wavelet transforms
Año:2003
Volumen:5
Número:4
Página de inicio:425
Página de fin:431
DOI: http://dx.doi.org/10.1088/1464-4258/5/4/319
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_v5_n4_p425_Mazzaferri

Referencias:

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Citas:

---------- APA ----------
Mazzaferri, J., Ledesma, S. & Iemmi, C. (2003) . Multiple feature extraction by using simultaneous wavelet transforms. Journal of Optics A: Pure and Applied Optics, 5(4), 425-431.
http://dx.doi.org/10.1088/1464-4258/5/4/319
---------- CHICAGO ----------
Mazzaferri, J., Ledesma, S., Iemmi, C. "Multiple feature extraction by using simultaneous wavelet transforms" . Journal of Optics A: Pure and Applied Optics 5, no. 4 (2003) : 425-431.
http://dx.doi.org/10.1088/1464-4258/5/4/319
---------- MLA ----------
Mazzaferri, J., Ledesma, S., Iemmi, C. "Multiple feature extraction by using simultaneous wavelet transforms" . Journal of Optics A: Pure and Applied Optics, vol. 5, no. 4, 2003, pp. 425-431.
http://dx.doi.org/10.1088/1464-4258/5/4/319
---------- VANCOUVER ----------
Mazzaferri, J., Ledesma, S., Iemmi, C. Multiple feature extraction by using simultaneous wavelet transforms. J Opt A Pure Appl Opt. 2003;5(4):425-431.
http://dx.doi.org/10.1088/1464-4258/5/4/319