Jl. Marroquin et al., LOCAL PHASE FROM LOCAL ORIENTATION BY SOLUTION OF A SEQUENCE OF LINEAR-SYSTEMS, Journal of the Optical Society of America. A, Optics, image science,and vision., 15(6), 1998, pp. 1536-1544
A technique for recovering the phase from single fringe-pattern images
is presented. It is based on the estimation of the local frequency of
the pattern by successive decoupled estimation of the local orientati
on, direction, and magnitude of the frequency field. Once this field i
s known, the local phase is recovered from the complex output of an ad
aptive quadrature filter. It is shown that by the use of Gauss-Markov
measure field models all these estimation steps may be implemented by
solving linear systems of equations (i.e., minimizing quadratic functi
ons), which makes the procedure robust and computationally efficient.
Examples are presented of the application of this technique to the rec
overy of phase fi om single electronic speckle-pattern in terferograms
. (C) 1998 Optical Society of America.