An automatic quantitative approach to additive/subtractive moiré
Authors:
Pramod K. Rastogi
Affiliation:
Laboratory of Stress Analysis, Swiss Federal Institute of Technology, 1015, Lausanne, Switzerland
Abstract:
An automatic fringe-analysis procedure is described for additive and subtractive types of moiré. The procedure is based on the simultaneous introduction of differential phase shifts to the two superposed gratings or fringes.