Three-dimensional displacement measurement by fringe projection and speckle photography

Journal Article · Tue Apr 15 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2926979· OSTI ID:21137082

Barrientos, B; Garcia-Marquez, J ^[1]; Cerca, M ^[2]; Hernandez-Bernal, C ^[3]

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1. Centro de Investigaciones en Optica A.C. Loma del Bosque 115, Col. Lomas del Campestre, Leon, Gto. (Mexico)
2. Centro de Geociencias, UNAM, Qro. (Mexico)
3. 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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 992; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CALIBRATION
CAMERAS
CHARGE-COUPLED DEVICES
COMPRESSION
EARTH CRUST
EVOLUTION
HOLOGRAPHY
INTERFEROMETRY
OPTICS
PHOTOGRAPHY
THREE-DIMENSIONAL CALCULATIONS