Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sotero Ordones"'
Publikováno v:
Optics Continuum. 2:697
Demand for better quality, larger quantity, and size of astronomical telescopes from visible to radio frequencies is increasing. More rapid, efficient, and adaptable manufacturing processes are needed to support the needs of growing science and engin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::758ed6f9a2bbdf24a78fe740a89f3854
https://doi.org/10.1364/optcon.485013
https://doi.org/10.1364/optcon.485013
Publikováno v:
Applied optics. 60(28)
In optical metrology, fringe projection and moire techniques have been widely used to measure the topography of objects. We can combine the advantages of the two techniques by applying a configuration of simultaneous dual projection in the fringe pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9bf7abae192f90717734c740cc4804a
https://pubmed.ncbi.nlm.nih.gov/34613092
https://pubmed.ncbi.nlm.nih.gov/34613092
Publikováno v:
Optics Letters. 47:4135
We introduce a method of phase demodulation to distinguish the ghost reflection commonly observed in optical testing. The method digitally processes a sequence of fringe patterns to separate the reflections from the front and rear surfaces. First, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5f7b832428b09f9f6c87412928b30f3
https://doi.org/10.1364/ol.468063
https://doi.org/10.1364/ol.468063
Publikováno v:
Interferometry XX.
In this work, we introduce the windowed generalized phase-shifting algorithms (WG-PSAs) using static and dynamic weighting functions/widows. These algorithms are derived from a weighted least square fitted to the monochromatic temporal fringe, thereb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ba9ddcec2cfa388d8e998c8e237fc2e
https://doi.org/10.1117/12.2567389
https://doi.org/10.1117/12.2567389
Publikováno v:
Applied optics. 59(20)
In this paper, we introduce an iterative scheme for phase demodulation of interferograms with nonuniformly spaced phase shifts. Our proposal consists of two stages: first, the phase map is obtained through a least squares fitting; second, the phase s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8db6bc3898073339cea857149db2ec8e
https://pubmed.ncbi.nlm.nih.gov/32672771
https://pubmed.ncbi.nlm.nih.gov/32672771
Publikováno v:
Acta Universitaria, Vol 29 (2019)
La interferometría por corrimiento de fase es una técnica bien establecida para mediciones de fase, la cual requiere de una serie de patrones de franjas corridos en fase. En este trabajo, se analizan dos algoritmos de corrimiento de fase, los cuale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2f3c3c232973bc324d6560316c84cb2
https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/2627/3408
https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/2627/3408
Publikováno v:
Optics Communications. 391:88-93
Colored fringe pattern approach has been proposed to overcome the limitations of the sequential phase-shifting fringe pattern profilometry for dynamic measurements. However, the use of colored fringe patterns leads to a mayor problem, the color cross
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c800143699d0c49ce16e224687fdf7a
https://doi.org/10.1016/j.optcom.2016.12.058
https://doi.org/10.1016/j.optcom.2016.12.058
Publikováno v:
Optics letters. 44(9)
We introduce the frequency transfer function (FTF) formalism for generalized least squares phase-shifting algorithms (GLS-PSAs), whose phase shifts are nonuniformly spaced. The GLS-PSA's impulsive response is found by computing the Moore-Penrose pseu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72d79f09470a01e0619bb602fd5c6686
https://pubmed.ncbi.nlm.nih.gov/31042223
https://pubmed.ncbi.nlm.nih.gov/31042223
Publikováno v:
Optics express. 27(4)
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 obtained using feedback, closed-loop, optical phase-shifting devices. On
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66852793a2fe24e1381ffbaad12978bc
https://pubmed.ncbi.nlm.nih.gov/30876177
https://pubmed.ncbi.nlm.nih.gov/30876177
Autor:
Luis A. Morales, Sotero Ordones, Jorge L. Flores, Geliztle A. Parra-Escamilla, Manuel Servin, Antonio Muñoz
Publikováno v:
Applied Optics. 60:1137
This paper introduces a novel, to the best of our knowledge, method to estimate and compensate the nonlinear gamma factor introduced by the optical system in fringe projection profilometry. We propose to determine this factor indirectly by adjusting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a1603791da6cb678fd37cf5211b4e91
https://doi.org/10.1364/ao.415056
https://doi.org/10.1364/ao.415056