D. Paoletti et Gs. Spagnolo, FAST FOURIER TRANSFORMED ELECTRONIC SPECKLE CONTOURING FOR DIFFUSE SURFACES PROFILOMETRY, Optics and lasers in engineering, 20(2), 1994, pp. 87-96
A method of contouring three-dimensional objects using an out-of-plane
sensitive ESPI apparatus with optical fibers is presented. The contou
r map is obtained by shifting the object illumination beam. A Fourier
transform method is suggested for automatic quantitative analysis of s
pecklecorrelograms in terms of phase. An example of application is pre
sented.