Información del autor
Autor Servín Guirado, Manuel |
Documentos disponibles escritos por este autor (33)
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Quiroga Mellado, Juan Antonio ; Gómez Pedrero, José Antonio ; Servín Guirado, Manuel | The Optical Society Of America | 2008-07-20We present a spatial adaptive asynchronous algorithm for fringe pattern demodulation. The proposed algorithm is based on the standard five-step asynchronous method with the one modification that we select the best sample spacing for each point o[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Cuevas de la Rosa, Francisco Javier | Elsevier Science BV | 2001-12-15First- and second-order recursive Digital Phase Locked Loops (DPLLs) have been used recently in fringe data processing because it is the fastest way to obtain the unwrapped phase of a carrier frequency fringe pattern due to its minimal computati[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Estrada, Julio César ; González, Christhian Adonai | The Optical Society Of America | 2011-05-23To estimate the modulating wavefront of an interferogram in Phase Shifting Interferometry (PSI) one frequently uses a Phase Shifting Algorithm (PSA). All PSAs take as input N phase-shifted interferometric measures, and give an estimation of thei[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Estrada, Julio César | The Optical Society Of America | 2009-02-15We show a practical way for building wideband phase-shifting algorithms for interferometry. The idea presented combines first- and second-order quadrature filters to obtain wideband phase-shifting algorithms. These first- and second-order quadra[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Marroquín Zaleta, José Luis ; Crespo Vázquez, Daniel | Optical Society of America | 2005-03The 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-dim[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Dávila Álvarez, Abundio | The Optical Society Of America | 2002-08-01In recent years the availability of high-speed digital video cameras has motivated the study of electronic speckle pattern interferometry (ESPI) in the time domain. To this end a properly sampled temporal sequence off-fringe patterns is used to [...]texto impreso
Quiroga Mellado, Juan Antonio ; Estrada, Julio C. ; Servín Guirado, Manuel ; Navarro, Miguel A. | The Optical Society Of America | 2012-01-30Here, we present a fast algorithm for two-dimensional (2D) phase unwrapping which behaves as a recursive linear filter. This linear behavior allows us to easily find its frequency response and stability conditions. Previously, we published a rob[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Marroquín Zaleta, José Luis | Optical Society of America | 2003-05Quadrature operators are useful for obtaining the modulating phase 0 in, interferometry and temporal signals in electrical communications. In carrier-frequency interferometry and electrical communications, one uses the Hilbert transform to obtai[...]texto impreso
Quiroga Mellado, Juan Antonio ; Villa Hernández, José de Jesús ; Servín Guirado, Manuel | The Optical Society Of America | 2000-02-01We propose a robust procedure based on the regularized phase-tracking (RPT) technique to demodulate squared-grating deflectograms. The use of squared gratings, already reported, lets us multiplex the information of the deflections in two orthogo[...]texto impreso
In this work we propose a robust fringe demodulation technique applied to the analysis of a single isochromatics fringe pattern produced in photoelasticity. The method used is a regularized phase tracking algorithm with a new sequential scanning[...]texto impreso
Fringe pattern normalization consists in the background suppression and modulation normalization of a given fringe pattern, this process gives as a result a pure sinusoidal phase modulated signal. Normalization is an important operation in the d[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Marroquín Zaleta, José Luis ; Gómez Pedrero, José Antonio | SPIE--The International Society for Optical Engineering | 2003In fringe pattern processing, quadrature operators are useful to obtain the corresponding modulating phase. In the case that a carrier exists (spatial or temporal), there are good methods for phase demodulation as Fourier analysis and asynchrono[...]texto impreso
Quiroga Mellado, Juan Antonio ; Estrada, Julio César ; Servín Guirado, Manuel | SPIE--The International Society for Optical Engineering | 2010Phase-shifting algorithms are methods used for recovering the modulating phase of an interferogram sequence obtained by Phase Stepping Interferometry (PSI) techniques. Typically, the number of interferograms in a PSI sequence is from 3 to around[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Cuevas de la Rosa, Francisco Javier | Optical Society of America | 2002-08The fringe orientation angle provides useful information for many fringe-pattern-processing techniques. From a single normalized fringe pattern (background suppressed and modulation normalized), the fringe orientation angle can be obtained by co[...]texto impreso
Quiroga Mellado, Juan Antonio ; Vargas, Javier ; Estrada, Julio C. ; Sánchez Sorzano, Carlos Óscar ; Servín Guirado, Manuel | The Optical Society Of America | 2012-08-20Fringe patterns with a multiplicative phase shift among them appear in experimental techniques as photoelasticity and RGB shadow moiré, among others. These patterns cannot be processed using standard phase-shifting demodulation techniques. In th[...]texto impreso
Quiroga Mellado, Juan Antonio ; Villa Hernández, José de Jesús ; Servín Guirado, Manuel ; Estrada, Julio César ; Rosa Vargas, José Ismael de la | The Optical Society Of America | 2010-08-02It has been demonstrated that the vectorial fringe-direction field is very important to demodulate fringe patterns without a dominant (or carrier) frequency. Unfortunately, the computation of this direction-filed is by far the most difficult tas[...]texto impreso
Quiroga Mellado, Juan Antonio ; Estrada, Julio César ; Servín Guirado, Manuel ; Mosiño, Juan Francisco ; Cywiak Garbarcewics, Moisés | The Optical Society Of America | 2009-05-25We present a theoretical analysis to estimate the amount of phase noise due to noisy interferograms in Phase Shifting Interferometry (PSI). We also analyze the fact that linear filtering transforms corrupting multiplicative noise in Electronic S[...]texto impreso
Quiroga Mellado, Juan Antonio ; Estrada, Julio César ; Servín Guirado, Manuel | The Optical Society Of America | 2011-03-14Phase unwrapping techniques remove the modulus 2 ? ambiguities of wrapped phase maps. The present work shows a first-order feedback system for phase unwrapping and smoothing. This system is a fast phase unwrapping system which also allows filter[...]texto impreso
Quiroga Mellado, Juan Antonio ; Estrada, Julio César ; Servín Guirado, Manuel ; Marroquín Zaleta, José Luis | The Optical Society Of America | 2006-10-16In the last few years, works have been published about demodulating Single Fringe Pattern Images (SFPI) with closed fringes. The two best known methods are the regularized phase tracker (RPT), and the two-dimensional Hilbert Transform method (2D[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Estrada, Julio César | The Optical Society Of America | 2011-05-09The standard tool to estimate the phase of a sequence of phase-shifted interferograms is the Phase Shifting Algorithm (PSA). The performance of PSAs to a sequence of interferograms corrupted by non-white additive noise has not been reported befo[...]texto impreso
Quiroga Mellado, Juan Antonio ; Mosiño, Juan Francisco ; Servín Guirado, Manuel ; Estrada, Julio César | The Optical Society Of America | 2009-03-30Phase error analysis in Temporal Phase Shifting (TPS) algorithms due to frequency detuning has been to date only performed numerically. In this paper, we show an exact analytical expression to obtain this phase error due to detuning using the sp[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Estrada, Julio César ; Vargas, Javier | The Optical Society Of America | 2011-03-14In phase sampling interferometry, existing temporal analysis methods are sensitive to border effects and cannot deal with missing data. In this work we propose a quadrature filter that allows a reliable dynamic phase measurement for every sample[...]texto impreso
Regularized phase tracking technique for demodulation of isochromatics from a single tricolour image
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Marroquín Zaleta, José Luis | IOP Publishing Ltd. | 2002-01In this work we propose a robust fringe demodulation technique applied to the analysis of tricolour isochromatic fringe patterns produced in photoelasticity. The method used is a regularized phase tracking (RPT) algorithm, which takes into accou[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Estrada, Julio César ; Vargas, Javier ; Torre Belizón, Francisco Javier de la | The Optical Society Of America | 2011-10-10Any linear phase sampling algorithm can be described as a linear filter characterized by its frequency response. In traditional phase sampling interferometry the phase of the frequency response has been ignored because the impulse responses can [...]texto impreso
Quiroga Mellado, Juan Antonio ; Estrada, Julio César ; Servín Guirado, Manuel | The Optical Society Of America | 2010-02-01In Phase Stepping Interferometry (PSI) an interferogram sequence having a known, and constant phase shift between the interferograms is required. Here we take the case where this constant phase shift is unknown and the only assumption is that th[...]