title: Accurate measurement of out-of-plane particle displacement from the cross correlation of sequential digital in-line holograms.
abstract: A new method to quantify three-dimensional particle fields using digital in-line holography is presented. From sequentially recorded holograms, the maximum cross correlation of edge sharpness within local particle windows yields an accurate measurement of particle displacements. Experiments demonstrate out-of-plane displacement uncertainty of approximately 0.15 mean particle diameters, which is roughly an order-of-magnitude improvement compared with alternative methods. Application to shotgun pellets demonstrates robustness despite experimental noise.
authors: Daniel R
authors: DR
authors: Guildenbecher
authors: Phillip L
authors: PL
authors: Reu
authors: Howard Lee
authors: HL
authors: Stuaffacher
authors: Thomas
authors: T
authors: Grasser