title: Multiple-plane particle image velocimetry using a light-field camera.
abstract: Planar velocity fields in flows are determined simultaneously on parallel measurement planes by means of an in-house manufactured light-field camera. The planes are defined by illuminating light sheets with constant spacing. Particle positions are reconstructed from a single 2D recording taken by a CMOS-camera equipped with a high-quality doublet lens array. The fast refocusing algorithm is based on synthetic-aperture particle image velocimetry (SAPIV). The reconstruction quality is tested via ray-tracing of synthetically generated particle fields. The introduced single-camera SAPIV is applied to a convective flow within a measurement volume of 30 x 30 x 50 mm³.
authors: Technical University Bergakademie Freiberg, Department of Mechanics and Fluid Dynamics, Lampadiusstr. 4, 09596 Freiberg/Saxony, Germany. christoph.skupsch@imfd.tu-freiberg.de
authors: Christoph
authors: C
authors: Skupsch
authors: Christoph
authors: C
authors: Brücker
mesh_terms: D000465:Algorithms; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation* / Q000379:methods*; D007909:Lenses; D008029:Lighting / Q000295:instrumentation*; D010316:Particle Size; D010781:Photography / Q000295:instrumentation*; D012212:Rheology / Q000295:instrumentation*