Abstract
This paper proposes a method for reliable estimation of phase in digital holographic interferometry. The method is based on analyzing the interference field signal locally using a high-resolution signal subspace technique. The proposed method offers single-shot phase retrieval ability and high robustness against severe noise. The performance of the method is tested for phase extraction using numerical simulations. Further, the practical applicability of the method is validated for experimental fringe patterns obtained in digital holographic interferometry.
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