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Abstract:

We propose the use of a multichannel optical correlator working with two spatial light modulators for texture classification. The architecture may implement any method based on frequency filtering in the Fourier domain. The addition of linear phases in each filter shifts the filtered image in the correlation plane and permits the implementation of several filters in parallel. To show the capacity of the system, we implement a particular case of texture classification method. The features used for the classification are the energy that falls in different frequency subbands. Six wedges and four rings in 24 frequency subbands divide the Fourier domain. By adding linear phases in different regions, it is possible to implement eight subbands simultaneously in the filter spatial light modulator. Then only three filters are necessary. © 2003 society of Photo-Optical Instrumentation Engineers.

Registro:

Documento: Artículo
Título:Multichannel optical correlator for texture classification
Autor:Barbé, J.; Campos, J.; Nicolás, J.; Iemmi, C.
Filiación:Univ. Autónome de Barcelona, Departamento de Física, 08193 Bellaterra, Spain
Univ. Catol. de Valparaiso, Instituto de Física, Casilla 4059, Valparaíso, Chile
Universidad de Buenos Aires, Departamento de Fisica, Fac. de Cie. Exactas y Naturales, Buenos Aires, Argentina
Palabras clave:Image processing; Optical correlator; Parallel processing; Texture classification; Image processing; Light modulation; Optical filters; Parallel processing systems; Textures; Frequency subbands; Correlators
Año:2003
Volumen:42
Número:7
Página de inicio:2062
Página de fin:2067
DOI: http://dx.doi.org/10.1117/1.1580156
Título revista:Optical Engineering
Título revista abreviado:Opt Eng
ISSN:00913286
CODEN:OPEGA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00913286_v42_n7_p2062_Barbe

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Citas:

---------- APA ----------
Barbé, J., Campos, J., Nicolás, J. & Iemmi, C. (2003) . Multichannel optical correlator for texture classification. Optical Engineering, 42(7), 2062-2067.
http://dx.doi.org/10.1117/1.1580156
---------- CHICAGO ----------
Barbé, J., Campos, J., Nicolás, J., Iemmi, C. "Multichannel optical correlator for texture classification" . Optical Engineering 42, no. 7 (2003) : 2062-2067.
http://dx.doi.org/10.1117/1.1580156
---------- MLA ----------
Barbé, J., Campos, J., Nicolás, J., Iemmi, C. "Multichannel optical correlator for texture classification" . Optical Engineering, vol. 42, no. 7, 2003, pp. 2062-2067.
http://dx.doi.org/10.1117/1.1580156
---------- VANCOUVER ----------
Barbé, J., Campos, J., Nicolás, J., Iemmi, C. Multichannel optical correlator for texture classification. Opt Eng. 2003;42(7):2062-2067.
http://dx.doi.org/10.1117/1.1580156