Multiplicative phase-shifting interferometry using optical flow

© 2012 The Optical Society of America
Fringe patterns with a multiplicative phase shift among them appear in experimental techniques as photoelasticity and RGB shadow moiré, among others. These patterns cannot be processed using standard phase-shifting demodulation techniques. In this work, we propose to use a multiframe regularized optical flow algorithm to obtain the interesting modulating phase. The proposed technique has been applied to simulated and experimental interferograms obtaining satisfactory results.
Depto. de Óptica
Fac. de Ciencias Físicas
TRUE
pub