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.

Keywords: Digital Holography; Image Processing; Twin-image

Domains: Signal and Image processing; Optics [physics.optics]; Fluid mechanics [physics.class-ph]; Signal and Image Processing

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⟩