62 citations · 317 across the 21 of their papers we have counts for
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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…
Profilometry with digital fringe-projection at the spatial and temporal Nyquist frequencies
Moises Padilla, Manuel Servin, Guillermo Garnica
A phase-demodulation method for digital fringe-projection profilometry using the spatial and temporal Nyquist frequencies is presented. It allows us to digitize tridimensional surf…
General theory for super-sensitive dual-wavelength phase metrology: error-free unwrapping and signal-to-noise ratio
Manuel Servin, Moises Padilla, Guillermo Garnica
From 1971 to 2012 dual-wavelength optical-metrology used only the demodulated low-sensitivity phase-difference of two close-sensitive fringes. Dual-wavelength phase-metrology that…
Super-resolution far-ultraviolet equivalent-wavelength interferometry combining the phase of several visible-wavelength interferograms
Manuel Servin, Moises Padilla, Guillermo Garnica
A far-ultraviolet (FUV) equivalent-wavelength super-resolution interferometric technique is proposed. This FUV equivalent-wavelength interferometric method combines four demodulate…
Extended depth-range profilometry using the phase-difference and phase-sum of two close-sensitivity projected fringes
Manuel Servin, Moises Padilla, Guillermo Garnica
We propose a high signal-to-noise extended depth-range three-dimensional (3D) profilometer projecting two linear-fringes with close phase-sensitivity. We use temporal phase-shiftin…
Temporal-multiplexing interferometry applied to co-phased profilometry
Manuel Servin, Moises Padilla, Guillermo Garnica
Fringe-projection profilometry with 1 camera and 1 fringe-projector is a well-known and widely used technique in optical metrology. Spatial-frequency multiplexing interferometry wi…