62 citations · 305 across the 13 of their papers we have counts for
14 papers
Wavelength-stepping algorithm for testing thickness, front and back surfaces of optical plates with high signal-to-noise ratio
Manuel Servin, Gonzalo Paez, Moises Padilla +1
We propose a least-squares phase-stepping algorithm (LS-PSA) consisting of only 14 steps for high-quality optical plate testing. Optical plate testing produces an infinite number o…
High-precision temporal interferometry from nonlinearly-spaced phase-shifted interferograms through spatial-filtering
Manuel Servin, Moises Padilla, Guillermo Garnica +1
We present a high-precision temporal-spatial phase-demodulation algorithm for phase-shifting interferometry (PSI) affected by random/systematic phase-stepping errors. Laser interfe…
Fourier spectra for nonuniform phase-shifting algorithms based on principal component analysis
Manuel Servin, Moises Padilla, Guillermo Garnica +1
We develop an error-free, nonuniform phase-stepping algorithm (nPSA) based on principal component analysis (PCA). PCA-based algorithms typically give phase-demodulation errors when…
Design of non-uniformly spaced phase-stepped algorithms using their frequency transfer function
Manuel Servin, Moises Padilla, Guillermo Garnica +1
Here we show how to design phase-shifting algorithms (PSAs) for nonuniform phase-shifted fringe patterns using their frequency transfer function (FTF). Assuming that the nonuniform…
Phase-stepping algorithms for synchronous demodulation of nonlinear phase-shifted fringes
Manuel Servin, Moises Padilla, Ivan Choque +1
Standard phase-stepping algorithms (PSAs) estimate the measuring phase of linear carrier temporal-fringes with respect to a linear-reference. Linear-carrier fringes are normally ob…
Shannon information storage in noisy phase-modulated fringes and fringe-data compression by phase-shifting algorithms
Manuel Servin, Moises Padilla
Optical phase-modulated fringe-patterns are usually digitized with XxY pixels and 8 bits/pixel (or higher) gray-levels. The digitized 8 bits/pixel are raw-data bits, not Shannon in…