Article Dans Une Revue Optics and Lasers in Engineering Année : 2014

3D displacement measurements using a single camera

Résumé

Measuring 3D displacements usually requires at least two cameras or 3D images. However, in some especially constrained experimental circumstances, it is only possible to use a single camera. The present paper develops a methodology, based on digital image correlation that is able to measure the homogeneous 3D displacement of a plane surface using a single camera. Based on Descartes' theory, a model is elaborated that accounts not only for the magnification change due to the out-of-plane displacement but also for the unfocusing of the object. Several examples are provided that show the ability of the technique to track 3D displacements with various optical setups with different depths of field.

Fichier principal
Vignette du fichier
lanterne_v1.pdf (5.76 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence

Dates et versions

hal-04710335 , version 1 (09-10-2024)

Licence

Identifiants

Citer

Julien Réthoré, Fabrice Morestin, Lionel Lafarge, Paul Valverde. 3D displacement measurements using a single camera. Optics and Lasers in Engineering, 2014, 57, pp.20-27. ⟨10.1016/j.optlaseng.2014.01.009⟩. ⟨hal-04710335⟩
56 Consultations
187 Téléchargements

Altmetric

Partager

  • More