Three-dimensional displacement measurement by fringe projection and speckle photography
Por:
Barrientos B., Cerca M., García-Márquez J., Hernández-Bernal C.
Publicada:
1 ene 2008
Categoría:
Physics and Astronomy (miscellaneous)
Resumen:
3D displacement fields are measured by the combination of two optical methods, fringe projection and speckle photography. The use of only cne camera recording the necessary information implies that no calibration procedures are necessary as is the case in techniques based on stereoscopy. The out-of-plane displacement is measured by fringe projection whereas speckle photography yields the 2-D in-plane component. To show the feasibility of the technique, we analyze a detailed morphological spatio-temporal evolution of a model of the Earth's crust while subjected to compression forces. The results show that the combination of fringe projection and speckle photography is well suited for this type of studies. © 2008 American Institute of Physics.
Filiaciones:
Barrientos B.:
Centro de Investigaciones en Óptica, A. C. Loma del Bosque 115, Col. Lomas del Campestre, León, Gto., Mexico
Cerca M.:
Centro de Geociencias, UNAM, Qro., Mexico
García-Márquez J.:
Centro de Investigaciones en Óptica, A. C. Loma del Bosque 115, Col. Lomas del Campestre, León, Gto., Mexico
Hernández-Bernal C.:
Departamento de Geoquímica, Instituto de Geologia, UNAM, Mexico
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