Three-Dimensional Particle Image Velocimetry by Optical Processing of Holographic Records

We present in this paper a technique which allows for three-dimensional instantaneous velocity measurements, conceptually very similar to Particle Image Velocimetry (PIV). Since details on the mathematical model describing the optical processing on which the technique relies have been presented elsewhere, we limit ourselves to a brief presentation here. Emphasis is given on the presentation of unpublished details on the accompanying image processing algorithms.