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Título:
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Estimation of the orientation term of the general quadrature transform from a single n-dimensional fringe pattern
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Autores:
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Quiroga Mellado, Juan Antonio ;
Servín Guirado, Manuel ;
Marroquín Zaleta, José Luis ;
Crespo Vázquez, Daniel
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Tipo de documento:
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texto impreso
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Editorial:
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Optical Society of America, 2005-03
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Optica
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Tipo = Artículo
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Resumen:
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The spatial orientation of the fringe has been demonstrated to be a key point in the reliable phase demodulation from a single n-dimensional fringe pattern regardless of the frequency spectrum of the signal. The recently introduced general n-dimensional quadrature transform (GQT) makes explicit the importance of the fringe orientation in the demodulation process. The GQT is a quadrature operator that transforms cos ? into -sin ?-where ? is the modulating phase-and it is composed of two terms: an orientation factor directly related to the fringe's spatial orientation and an isotropic n-dimensional generalization of the one-dimensional Hilbert transform. We present a method for the determination of the orientation factor in a general n-dimensional case and its application to the demodulation of a single fringe pattern by the GQT. We have tested the algorithm with simulated as well as real photoelastic fringe patterns with good results.
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En línea:
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https://eprints.ucm.es/id/eprint/23074/1/QuirogaJA54.pdf
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