Cleaning digital holograms to investigate 3D particle fields

Loïc Denis (1) , Thierry Fournel (1) , Corinne Fournier (1) , Christophe Ducottet (1)

1 LHC - Laboratoire Hubert Curien

In-line digital holography allows to reconstruct particle fields or velocities in a deep volume in a flow. Processing digital holograms of numerous particles is still challenging. A cleaning scheme computing the contribution of some particles to the hologram is described then applied to denoising and local velocimetry.

Mots clés: Digital Holography; Image Processing; Twin-image

Domaines: Traitement du signal et de l'image [eess.SP]; Optique [physics.optics]; Mécanique des fluides [physics.class-ph]; Traitement du signal et de l'image [eess.SP]

Loïc Denis, Thierry Fournel, Corinne Fournier, Christophe Ducottet. Cleaning digital holograms to investigate 3D particle fields. 12th International Symposium on Flow Visualization, Sep 2006, Göttingen, Germany. pp.ISBN 0-9533991-8-4. ⟨ujm-00119204⟩