Three-dimensional displacement measurement by fringe projection and speckle photography
- Centro de Investigaciones en Optica A.C. Loma del Bosque 115, Col. Lomas del Campestre, Leon, Gto. (Mexico)
- Centro de Geociencias, UNAM, Qro. (Mexico)
- Departamento de Geoquimica, Instituto de Geologia, UNAM (Mexico)
3D displacement fields are measured by the combination of two optical methods, fringe projection and speckle photography. The use of only one 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.
- OSTI ID:
- 21137082
- Journal Information:
- AIP Conference Proceedings, Vol. 992, Issue 1; Conference: RIAO/OPTILAS 2007: RIAO: 6. Ibero-American conference on optics; OPTILAS: 9. Latin-American meeting on optics, lasers and applications, Campinas, Sao Paulo (Brazil), 21-26 Oct 2007; Other Information: DOI: 10.1063/1.2926979; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Multiple rotation assessment through isothetic fringes in speckle photography
Stress singularity field of a mixed-mode three-dimensional crack by an embedded speckle photography