Vishnoi Ankur, Ramaiah Jagadesh, Rajshekhar Gannavarpu
Appl Opt. 2019 Feb 20;58(6):1485-1490. doi: 10.1364/AO.58.001485.
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.
本文提出了一种在数字全息干涉测量中可靠估计相位的方法。该方法基于使用高分辨率信号子空间技术对干涉场信号进行局部分析。所提出的方法具有单次相位检索能力，并且对严重噪声具有高鲁棒性。使用数值模拟对该方法的性能进行了相位提取测试。此外，针对数字全息干涉测量中获得的实验条纹图案，验证了该方法的实际适用性。
