Reduction of the edge effects induced by the boundary of a linear-carrier interferogram

There are a great variety of techniques used to obtain the wrapped phase of a carrier frequency interferogram. We are interested in interferograms who se data points lie in bounded region data. Analysis of this kind of interfe rogram with the Fourier or synchronous method contains an important source of error at its edge. In this paper we propose a new method that reduces th is boundary error effect. This method consists of an iterative technique to obtain a very good estimate of the phase of a carrier frequency interferog ram bounded by an arbitrary pupil's shape. We suggest a method in order to reduce the boundary effects at the edge by giving a first phase estimation obtained by the Fourier or synchronous method.