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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 ; Vargas, Javier ; Estrada, Julio César ; Carazo García, José María ; Sánchez Sorzano, Carlos Óscar | Elsevier Sci. Ltd. | 2013-07Noise is a key problem in fringe pattern processing, especially in single frame demodulation of interferograms. In this work, we propose to filter the pattern noise using a straightforward, fast and easy to implement denoising method, which is b[...]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 ; 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
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[...]texto impreso
Quiroga Mellado, Juan Antonio ; Estrada, Julio César ; Servín Guirado, Manuel ; Marroquín Zaleta, José Luis | SPIE--The International Society for Optical Engineering | 2006Sequential methods like the regularized phase tracker (RPT) are commonly used for fringe pattern demodulation with closed fringes. The only drawback of the RPT method is the necessity to implement a two-dimensional (2D) fringe following scanning[...]texto impreso
Quiroga Mellado, Juan Antonio ; Servín Guirado, Manuel ; Cywiak Garbarcewics, Moisés ; Malacara Hernández, Daniel ; Estrada, Julio César | The Optical Society Of America | 2008-06-23It is well known that having 3 temporal phase shifting (PS) interferograms we do not have many possibilities of using an algorithm with a desired frequency spectrum, detuning, and harmonic robustness. This imposes severe restrictions on the poss[...]
