The paper presents a new max-flow/min-cut approach for recovering the absolute phase from modulo-2/spl pi/ phase, the so-called phase unwrapping (PU) problem. The adopted criterion is the minimization of the L/sup p/ norm of phase differences, leading to computationally demanding integer optimization problems. The unwrapped phase is computed iteratively through a sequence of binary optimizations, each one mapped onto a max-flow/min-cut problem on a certain graph. Accordingly, we name this new algorithm PUMF (for phase unwrapping max-flow). A set of experimental results illustrates the effectiveness of PUMF approach, namely for 0 < p < 1, where most competitors fail.


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    Titel :

    Phase unwrapping: a new max-flow/min-cut based approach


    Beteiligte:
    Bioucas-Dias, J.M. (Autor:in) / Valadao, G. (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    200235 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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