Artículo
Comparison of real-time phase-reconstruction methods in temporal speckle-pattern interferometry
Etchepareborda, Pablo Gonzalo
; Bianchetti, Arturo Abel
; Veiras, Francisco Ezequiel
; Vadnjal, Ana Laura
; Federico, Roque Alejandro; Kaufmann, Guillermo Hector
Fecha de publicación:
09/2015
Editorial:
Optical Society of America
Revista:
Applied Optics
ISSN:
0003-6935
e-ISSN:
2155-3165
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Three real-time methods for object-phase recovery are implemented and compared in temporal speckle-pattern interferometry. Empirical mode and intrinsic time-scale decompositions are used and compared as real-time nonstationary and nonlinear filtering techniques for the extraction of the spatio-temporal evolution of the object phase. The proposed real-time methods avoid the application of the Hilbert transform and improve the accuracy of the measurement by filtering under-modulated pixels using Delaunay triangulation. The performance of the proposed methods is evaluated by comparing phase-recovery accuracy and computation time by means of numerical simulations and experimental data obtained from common and simultaneous 2 phase-shifting heterodyne interferometry.
Palabras clave:
INTERFEROMETRY
,
SPECKLE
,
REAL TIME
,
PHASE RETRIEVAL
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Identificadores
Colecciones
Articulos(CIFASIS)
Articulos de CENTRO INT.FRANCO ARG.D/CS D/L/INF.Y SISTEM.
Articulos de CENTRO INT.FRANCO ARG.D/CS D/L/INF.Y SISTEM.
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Etchepareborda, Pablo Gonzalo; Bianchetti, Arturo Abel; Veiras, Francisco Ezequiel; Vadnjal, Ana Laura; Federico, Roque Alejandro; et al.; Comparison of real-time phase-reconstruction methods in temporal speckle-pattern interferometry; Optical Society of America; Applied Optics; 54; 25; 9-2015; 7663-7672
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