Velocimetry with spatial filters based on sensor arrays

Optics and Spectroscopy for Fluid Characterization

“…Reviews of the SFV development from 1987 and 2006 are contained in [102] and [103], respectively. As an example, Christoferi and Michel described in 1996 an SFV technique that avoids the blocking of light by directly using the columns of the camera pixels as the spatial filter [104]. This approach was later extended by employing the evaluation of quadrature signals [105].…”