Practical eight-frame algorithms for fringe projection profilometry

Gutiérrez-García, J. C.; Mosiño, J. F.; Martı́nez, Amalia; Gutiérrez-García, Tania A.; Vázquez‐Domínguez, Ella; Arroyo-Cabrales, Joaquı́n

doi:10.1364/oe.21.000903

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…It should be noted that FIGURE 2. Flowchart of the 'OTY' procedure employed in this study, where: α = angle (60º in this case), * = MBE algorithm (Gutiérrez-García et al, 2013), and ** = Goldstein algorithm. OTY: name given to the white light system together with the phase shifting algorithm filter, based on the fact that it was developed for use on Ototylomys samples (see main text).…”

Section: Resultsmentioning

confidence: 99%

A novel application of the white light/fringe projection duo: recovering high precision three-dimensional images from fossils for the digital preservation of morphology

Gutiérrez-García

Mosiño

et al. 2015

Palaeontologia Electronica

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There has been long historical interest in digital preservation of morphological features of biological materials, especially because often the preservation of sensitive molecules is critical for evolutionary studies. To this end, we successfully applied the recent advances of the fringe projection profilometry technique, in conjunction with white light and a new phase algorithm, to digitalize the shape of a fossil rodent hemimandible. We were able to generate a cloud of points in an array of data that allowed us to plot a three-dimensional (3-D) digital restoration of the entire fossil sample. The maximum resolution of this system is given by the diffraction limit (in the order of microns), and we show that this enhanced system can be used with objects in a range of 1-30 mm, minimizing the systematic errors induced by small vibrations or light fluctuations and, consequently, improving the signal-to-noise ratio of the recovered cloud data. This is a useful tool to preserve 3-D images of fossils and other biological objects for which rather detailed morphological information is required, like in research studies for biologists and paleontologists or, as in the present case, when researchers need a morphological replica because the sample will be destroyed for ancient DNA extraction.

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Section: Resultsmentioning

confidence: 99%

A novel application of the white light/fringe projection duo: recovering high precision three-dimensional images from fossils for the digital preservation of morphology

Gutiérrez-García

Mosiño

et al. 2015

Palaeontologia Electronica

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“…Some algorithms can work with fringe patterns where the visibility is not the same for all frames. These algorithms reduce the Due to the development of advanced technologies (e.g., liquid crystal spatial light modulators), the features of alternative experimental designs [48,49], and operating conditions [50], the requirements of phase-shifting algorithms have increased [51][52][53][54][55]. Particularly, it is necessary to process phaseshifted fringe patterns with unknown inhomogeneous phase shifts (i.e., the phase shift varies on both space p and time k) [56][57][58].…”

Section: Generalized Phase-shifting Algorithm To Inhomogeneous Phamentioning

confidence: 99%

Theory and algorithms of an efficient fringe analysis technology for automatic measurement applications

2015

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Some advances in fringe analysis technology for phase computing are presented. A full scheme for phase evaluation, applicable to automatic applications, is proposed. The proposal consists of: a fringe-pattern normalization method, Fourier fringe-normalized analysis, generalized phase-shifting processing for inhomogeneous nonlinear phase shifts and spatiotemporal visibility, and a phase-unwrapping method by a rounding-least-squares approach. The theoretical principles of each algorithm are given. Numerical examples and an experimental evaluation are presented.

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“…(Zuo, Huang, Zhang, Chen, & Asundi, 2016) Phase shifting interferometry is one of the best known structured light projection techniques (Geng, 2011). In one of the stages of this technique, a phase shifting algorithm (PSA) (Gutiérrez García, et al, 2013), also known as a filter, is applied. The objective of this paper is to present the proposal to define filters using a soft computation method known as differential evolution, which is an algorithm inspired by nature used to find values that define a treatable solution to a problem (Simon, 2013).…”

Section: Introductionmentioning

confidence: 99%

Algoritmos de desplazamiento de fase de siete cuadros para la perfilometría tridimensional usando proyección de franjas y cómputo suave

Cruz-Landeros

Mosiño

Rebollar³

et al. 2019

JCSI

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In this paper, we present a set of seven-frame algorithms for the phase shifthing profilometry and their application for the three-dimensional surface imaging using soft computing. This set obtained generate the most common seven-frame algorithms in the state of art. The algorithms are analized for the compensation of common errors such as phase shifthing, phase errors because variation of light or bias.

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Practical eight-frame algorithms for fringe projection profilometry

Cited by 10 publications

References 18 publications

A novel application of the white light/fringe projection duo: recovering high precision three-dimensional images from fossils for the digital preservation of morphology

A novel application of the white light/fringe projection duo: recovering high precision three-dimensional images from fossils for the digital preservation of morphology

Theory and algorithms of an efficient fringe analysis technology for automatic measurement applications

Algoritmos de desplazamiento de fase de siete cuadros para la perfilometría tridimensional usando proyección de franjas y cómputo suave

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